JP4553907B2 - Video game system and storage medium for video game - Google Patents

Description

  The present invention relates to a video game system and a video game storage medium, and more particularly to a video game system and a video game storage medium such as a shooting game in which a player object moves and displays and defeats an enemy.

In the conventional video game, the enemy hit detection range is fixed.

Even if the player attacked the enemy, the enemy in the distance was too small, so the attack did not hit easily. As a result, the game becomes difficult and the player's motivation may be lost.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a video game system and a video game storage medium having an interface that allows a player to play at an appropriate difficulty level and allows the player to play the game more eagerly.

According to the present invention, it is possible to obtain a video game system and a video game storage medium having an interface that allows a player to play with an appropriate difficulty level and allows the player to play the game more eagerly.

  Next, the configuration of the video game system of the present invention and the video game storage medium used therefor will be described. In the following embodiments, a case dedicated to a video game machine will be described. However, the present invention can be applied to a personal computer or the like as another example of an image processing apparatus. The operation means will be described with a game-dedicated controller. However, if the video game system of the present application is applied to an image processing apparatus such as a personal computer, an input device such as a keyboard or a mouse may be used. Good.

  FIG. 1 is an external view showing the configuration of a video game system according to one embodiment of the present invention. The video game system includes a video game machine main body 10, a ROM cartridge 20 as an example of an external storage device, a CRT display 30 as an example of a display device connected to the video game machine main body 10, and operation means (or operation input means). And an example controller 40. A RAM cartridge 50 (or vibration cartridge 50A) is detachably attached to the controller 40 as necessary.

  The controller 40 is configured by providing a plurality of switches or buttons on a housing 41 that can be gripped with both hands or one hand. Specifically, the controller 40 is provided with handles 41L, 41C, and 41R at the lower portions of the left and right and center of the housing 41, and uses the upper surface as an operation area. In the operation area, a joystick 45 capable of analog input is provided at the lower center, a cruciform digital direction switch (hereinafter referred to as “cross switch”) 46 is provided on the left side, and a plurality of button switches 47A to 47Z are provided on the right side. It is done. The joystick 45 is used to instruct and input the moving direction and / or moving speed (or moving amount) of the player object according to the tilt amount and direction of the stick. The cross switch 46 is used instead of the joystick 45 to input an instruction for the moving direction of the player object. The plurality of button switches 47 are provided on the upper left side surface of the housing 41, switches 47A and 47B for instructing the movement of the player object, a switch 47C used for changing the viewpoint of an image viewed from the camera, a start switch 47S, and the like. It includes an operation switch 47L, an operation switch 47R provided on the upper right side surface of the housing 41, and a switch 47Z provided on the back side of the handle 41C. The switch 47C is configured by arranging four button switches 47Cu, 47Cd, 47Cl, 47Cr on the top, bottom, left, and right, and for controlling the moving speed (eg, acceleration, deceleration, etc.) in a shooting or action game other than the camera viewpoint switching. ) Can also be used. The functions of the plurality of button switches 47A to 47Z can be defined by a game program.

  FIG. 2 is a block diagram of a video game system according to one embodiment of the present invention. The video game machine 10 includes a central processing unit (hereinafter abbreviated as “CPU”) 11 and a coprocessor (reality coprocessor: hereinafter abbreviated as “RCP”) 12. The RCP 12 includes a bus control circuit 121 for performing bus control, an image processing unit (reality signal processor; hereinafter abbreviated as “RSP”) 122 for performing polygon coordinate conversion, shadow processing, and the like. An image processing unit (reality display processor; hereinafter abbreviated as “RDP”) 123 for rasterizing polygon data into an image to be displayed and converting it into a data format (dot data) that can be stored in a frame memory. It is. The RCP 12 is connected to a cartridge connector 13 for detachably mounting the ROM cartridge 20, a disk drive connector 14 for detachably mounting the disk drive 26, and the RAM 15. The RCP 12 is connected to an audio signal generation circuit 16 for outputting an audio signal processed by the CPU 11 and an image signal generation circuit 17 for outputting an image signal. Further, a controller control circuit 18 for serially transferring operation data of one or a plurality of controllers 40A to 40D and / or data of the expansion RAM cartridge 50 is connected to the RCP 12.

  The bus control circuit 121 included in the RCP 12 performs parallel-serial conversion on a command given as a parallel signal from the CPU 11 via the bus and supplies the command to the controller control circuit 18 as a serial signal. The bus control circuit 121 converts the serial signal input from the controller control circuit 18 into a parallel signal and outputs the parallel signal to the CPU 11 via the bus. Data indicating the operation state read from the controllers 40 </ b> A to 40 </ b> D is processed by the CPU 11 or temporarily stored in the RAM 15. In other words, the RAM 15 includes a storage area for temporarily storing data processed by the CPU 11 and is used to smoothly read or write data via the bus control circuit 121.

  A connector 195 provided on the rear surface of the video game machine 10 is connected to the audio signal generation circuit 16. A connector 196 provided on the rear surface of the video game machine 10 is connected to the image signal generation circuit 17. A connector 195 is detachably connected to a connection portion of a sound generator 32 such as a television speaker. A connector 196 is detachably connected to a connection portion of a display 31 such as a television receiver or a CRT.

  Connected to the controller control circuit 18 are controller connectors (hereinafter simply referred to as “connectors”) 191 to 194 provided on the front surface of the video game machine 10. Controllers 40A to 40D are detachably connected to the connectors 191 to 194 via connection jacks. As described above, by connecting the controllers 40A to 40D to the connectors 191 to 194, the controllers 40A to 40D are electrically connected to the video game machine 10, and data can be transmitted / received or transferred between them.

  FIG. 3 is a detailed circuit diagram of the controller control circuit 18. The controller control circuit 18 is used to transmit and receive data serially between the RCP 12 and the controller connectors 191 to 194, and temporarily stores the data transfer control circuit 181, the transmission circuit 182, the reception circuit 183, and the transmission / reception data. The RAM 184 is included. The data transfer control circuit 181 includes a parallel-serial conversion circuit and a serial-parallel conversion circuit for converting the data format at the time of data transfer, and further performs write / read control of the RAM 184. The serial-parallel conversion circuit converts serial data supplied from the RCP 12 into parallel data, and supplies the parallel data to the RAM 184 or the transmission circuit 182. The parallel-serial conversion circuit converts parallel data supplied from the RAM 184 or the reception circuit 183 into serial data, and supplies the serial data to the RCP 12. The transmission circuit 182 converts the command for signal reading control of the controller 40 supplied from the data transfer control circuit 181 and the write data (parallel data) to the RAM cartridge 50 into serial data, and outputs a plurality of controllers 40A˜ The data is transmitted to channels CH1 to CH4 corresponding to each of 40D. The receiving circuit 183 receives the operation state data of the controllers 40A to 40D input from the channels CH1 to CH4 corresponding to the controllers 40A to 40D and the read data from the RAM cartridge 50 as serial data, and converts them into parallel data. To the data transfer control circuit 181. The data transfer control circuit 181 controls writing of the data transferred from the RCP 12 or the operation state data of the controllers 40A to 40D received by the receiving circuit 183 and the read data of the RAM cartridge 50 into the RAM 184, or based on an instruction from the RCP 12 The data of the RAM 184 is read out and transferred to the RCP 12.

  Although not shown, the RAM 184 includes storage areas 184a to 184h. A command for the first channel is stored in the area 184a, and transmission data and reception data for the first channel are stored in the area 184b. Similarly, a command for the second channel is stored in the area 184c, and transmission data and reception data for the second channel are stored in the area 184d, respectively. A command for the third channel is stored in the area 184e, and transmission data and reception data for the third channel are stored in the area 184f, respectively. The area 184g stores a command for the fourth channel, and the area 184h stores transmission data and reception data for the fourth channel.

  FIG. 4 is a detailed circuit diagram of the controller 40 and the RAM cartridge 50. An operation signal processing circuit 44 and the like are incorporated in the housing of the controller 40 in order to detect operation states of the joystick 45 and the switches 46 and 47 and transfer the detected data to the controller control circuit 18. The operation signal processing circuit 44 includes a reception circuit 441, a control circuit 442, a switch signal detection circuit 443, a counter circuit 444, a joyport control circuit 446, a reset circuit 447 and a NOR gate 448. The receiving circuit 441 converts a control signal transmitted from the controller control circuit 18 and a serial signal such as write data to the RAM cartridge 50 into a parallel signal and supplies the parallel signal to the control circuit 442. When the control signal transmitted from the controller control circuit 18 is a reset signal for the X and Y coordinates of the joystick 45, the control circuit 442 generates a reset signal and the counter for X axis in the counter 444 via the NOR gate 448. The count values of the 444X and the Y-axis counter 444Y are reset (0).

  The joystick 45 includes photo interrupts for the X axis and the Y axis so as to generate a pulse number proportional to the tilt amount by decomposing into the X axis direction and the Y axis direction of the lever tilt direction. The signal is supplied to the counter 444X and the counter 444Y. When the joystick 45 is tilted in the X-axis direction, the counter 444X counts the number of pulses generated according to the tilt amount. When the joystick 45 is tilted in the Y-axis direction, the counter 444Y counts the number of pulses generated according to the tilt amount. Therefore, the moving direction and coordinate position of the player object, the main character or the cursor are determined by the combined vector of the X axis and the Y axis determined by the count values of the counter 444X and the counter 444Y. Note that the counter 444X and the counter 444Y are also obtained by a reset signal given from the reset signal generation circuit 447 when the power is turned on or a reset signal given from the switch signal detection circuit 443 when the player presses two predetermined switches simultaneously. The count value is reset.

  The switch signal detection circuit 443 responds to the switch state output command given from the control circuit 442 at a constant cycle (for example, an interval of 1/30 seconds, which is a television frame cycle), of the cross switch 46 and the switches 47A to 47Z. A signal that changes depending on the pressed state is read and applied to the control circuit 442. In response to an operation state data read command signal from the controller control circuit 18, the control circuit 442 sends the operation state data of the switches 47A to 47Z and the count values of the counters 444X and 444Y to the transmission circuit 445 in a predetermined data format. give. The transmission circuit 445 converts the parallel signal output from the control circuit 442 into a serial signal, and transfers the serial signal to the controller control circuit 18 via the conversion circuit 43 and the signal line 42. A port control circuit 446 is connected to the control circuit 442 via an address bus, a data bus, and a port connector 449. The port control circuit 446 performs data input / output (or transmission / reception) control in accordance with a command from the CPU 11 when the RAM cartridge 50 is connected to the port connector 449.

  The RAM cartridge 50 is configured by connecting a RAM 51 to an address bus and a data bus, and connecting a battery 52 to the RAM 51. The RAM 51 is a RAM having a capacity (for example, 256 kbits) less than half of the maximum memory capacity that can be accessed using the address bus. The RAM 51 stores backup data related to the game, and retains backup data by receiving power supply from the battery 52 even when the RAM cartridge 50 is removed from the port connector 449. In the game, when an impact state such as a collision or explosion is imaged or output as a sound, if the impact state is to be made closer to reality, is the RAM cartridge 50 with the built-in vibration generation circuit 53 used? A vibration cartridge 50 </ b> A including only the vibration generation circuit 52 not including the RAM 51 is used.

  The ROM cartridge 20 is configured by mounting an external ROM 21 on a substrate and housing the substrate in a housing. The external ROM 21 stores image data and program data for image processing such as games, and stores audio data such as music, sound effects, and messages as necessary.

  FIG. 5 is a memory map schematically showing the entire memory space of the external ROM 21, and FIG. 6 is a memory map showing a part of the memory space (image display data area 24) of the external ROM 21 in detail. The external ROM 21 has a plurality of storage areas (hereinafter, abbreviated as “area” when the data type name is given before the “storage area”). For example, as shown in FIG. An area 23, an image data area 24, and a sound memory area 25 are included, and various programs are fixedly stored in advance.

The program area 22 stores programs necessary for performing image processing such as games (programs for realizing the functions of the flowcharts shown in FIGS. 15 to 31 described later, game data corresponding to game contents, and the like). I remember it. Specifically, the program area 22 includes storage areas 22a to 22p for fixedly storing an operation program for the CPU 11 in advance. The main program area 22a stores a main routine processing program such as a game shown in FIG. The control pad data (operation state) determination program area 22b stores a program for processing data indicating the operation state of the controller 40 and the like. In the write program area 22c, a write program to the frame memory and the Z buffer to be written by the CPU 11 to the RCP 12 is stored. For example, in the writing program area 22c, color data is stored in a frame memory area (152 shown in FIG. 7) of the RAM 15 as image data based on texture data of a plurality of moving objects or background objects to be displayed on one background screen. A program to be written and a program to write the depth data in the Z buffer area (153 shown in FIG. 7) are stored. The moving program area 22d stores a control program for the CPU 11 to act on the RCP 12 to change the position of the moving object in the three-dimensional space. The camera control program area 22e stores a camera control program for controlling which position in the three-dimensional space and which direction the moving object including the player object and the background object are photographed. The course selection program area 22f stores a course selection subroutine program shown in FIG. The mode switching program area 22g stores a mode switching subroutine program shown in FIG. The program stored in the storage area 22g switches the scroll direction and the scrollable range by switching the scroll mode when the display mode is one-way scroll and when the display mode is all-direction (all range) scroll.
The communication processing program area 22h stores a communication processing subroutine program shown in FIGS. The replenishment process program area 22i stores a replenishment process subroutine program shown in FIGS. The player object program area 22j stores a program for display control of objects operated by the player. The fellow object program area 22k stores a program (see FIGS. 24 to 26) for controlling the display of fellow objects that help the player object and advance the game. The enemy object program area 22l stores a program (see FIGS. 27 and 28) for controlling display of an enemy object that attacks the player object. In the background program area 22m, a background creation program (see FIG. 29) for causing the CPU 11 to act on the RCP 12 to create a three-dimensional background image (or course) is stored. The voice processing program area 22n stores a program (see FIG. 31) for generating a sound effect, music, or voice message. The game over process program area 22o stores a program such as a process when the game is over, for example, a game over state detection or a game state backup data storage process until the game over is reached. . In the message processing program area 22p, message processing (communication processing in FIG. 19 to FIG. 21) is performed in order to display a message useful for performing an operation suitable for the place or environment where the player object is present or to output by voice. , A subroutine program of processes including the supply process of the supplements shown in FIGS. 22 and 23) is stored.

  The character code area 23 is an area for storing a plurality of types of character codes, and stores dot data for a plurality of types of characters corresponding to the codes, for example. The character code data stored in the character code area 23 is used for displaying an explanatory note to the player during the progress of the game. In this embodiment, an appropriate operation method or response method is set at an appropriate timing according to the surrounding environment (for example, the location, the type of obstacle, the type of enemy object) where the player object is located and the situation where the player object is placed. Used to display a text message (or serif).

  As shown in FIG. 6, the image data area 24 includes storage areas 24a to 24f. The image data area 24 stores image data such as coordinate data and texture data of a plurality of polygons for each of the background object and / or the moving object, and displays these objects fixedly at predetermined positions. Alternatively, a display control program for moving and displaying is stored. For example, a program for displaying a player object is stored in the storage area 24a. The storage area 24b stores a fellow object program for displaying a plurality of fellow objects 1 to 3. The storage area 24c stores a background object program for displaying a plurality of background (stationary) objects 1 to n1. The storage area 24d stores an enemy object program for displaying a plurality of enemy objects 1 to n2. The storage area 24e stores a boss object program for displaying a boss object. The storage area 24f stores, for example, data for outputting a dialogue or message shown in FIG.

  The sound memory area 25 stores sound data such as speech, sound effects, and game music for outputting the message suitable for the scene by voice corresponding to each scene.

  The external storage device may use various storage media such as a CD-ROM and a magnetic disk in place of the ROM cartridge 20 or in addition to the ROM cartridge 20. In that case, various data for games (including program data and data for image display) are read from an optical or magnetic disk-like storage medium such as a CD-ROM or a magnetic disk, or written as necessary. For this purpose, a disk drive (recording / reproducing apparatus) 26 is provided. The disk drive 26 reads data stored in a magnetic disk or optical disk in which program data similar to the ROM 21 is stored magnetically or optically, and transfers the data to the RAM 15.

  FIG. 7 is a memory map schematically showing the entire memory space of the RAM 15, and FIG. 8 is a memory map showing a part of the memory space of the RAM 15 (image display data area 154) in detail. The RAM 15 includes various storage areas 150 to 159. For example, the RAM 15 stores a display list area 150, a program area 151, a frame memory (or image buffer memory) area 152 that temporarily stores image data for one frame, and depth data for each dot in the frame memory area. Z buffer area 153, image data area 154, sound memory area 155, area 156 for storing control pad operation state data, working memory area 157, companion data area 158, register data area And a flag area 159. Each of the storage areas 151 to 159 is a memory space that the CPU 11 can directly access via the bus control circuit 121 or the RCP 12, and is allocated to an arbitrary capacity (or memory space) depending on the game used. The program area 151, the image data area 154, and the sound memory area 155 are a part of the game programs of all scenes (or stages) of one game stored in the storage areas 22, 24, and 25 of the ROM 21. For example, when a game program necessary for a certain course or stage is transferred, the corresponding data is temporarily stored. In this way, if a part of various program data necessary for a certain scene is stored in each of the storage areas 151, 154, 155, the CPU 11 can read the data from the ROM 21 and process it every time it is necessary. Efficiency can be increased and image processing speed can be increased.

Specifically, the frame memory area 152 has a storage capacity corresponding to the number of pixels (pixels or dots) of the display 30 × the number of bits of color data per pixel, and corresponds to each pixel of the display 30 for each dot. Store color data. The frame memory area 152 displays one or more objects of a stationary object and / or a moving object to be displayed in one background screen stored in the image data area 154 in the image processing mode as an aggregate of a plurality of polygons. Based on the three-dimensional coordinate data to be used, the color data for each dot of the object seen from the viewpoint position is temporarily stored, and the player object, fellow object, enemy object, boss stored in the image data area 154 in the display mode When displaying moving objects such as objects and various objects such as background (or still) objects, color data for each dot is temporarily stored.
The Z buffer area 153 has a storage capacity corresponding to the number of pixels (pixels or dots) of the display 30 × the number of bits of depth data per pixel, and stores the depth data for each dot corresponding to each pixel of the display 30. To do. The Z buffer area 153 includes a portion of the object that can be seen from the viewpoint position based on the three-dimensional coordinate data for displaying one or more objects of a stationary object and / or a moving object as an aggregate of a plurality of polygons in the image processing mode. Depth data is temporarily stored for each dot, and depth data for each dot of each moving and / or stationary object is temporarily stored in the display mode.
The image data area 154 stores coordinate data and texture data of polygons composed of a plurality of aggregates for each stationary and / or moving object for game display stored in the ROM 21, Prior to the image processing operation, data for at least one course or stage is transferred from the ROM 21. Details of the data stored in the image data area 154 will be described with reference to FIG.
In the sound memory area 155, a part of the sound data (serif, music, sound effect data) stored in the storage area of the ROM 21 is transferred and temporarily stored as sound data generated from the sound generator 32.
The control pad data (operation state data) storage area 156 temporarily stores operation state data indicating the operation state read from the controller 40.
The work memory area 157 temporarily stores data such as parameters while the CPU 11 is executing a program.
The fellow data area 158 temporarily stores data for display control of fellow objects stored in the storage area 22k.
The register / flag area 159 includes a plurality of register areas 159R and a plurality of flag areas 159F. The register area 159R includes registers R1 to R3 for loading the damage amount of the main body, left wing (or wing), and right wing of the player object, a register R4 for loading a friend's damage, and a register R5 for loading an enemy (boss). , Register R6 for loading the number of player objects, register R7 for loading the number of lives of the player, register R8 for loading the number of enemy objects displayed on one screen, register R9 for loading the number of stationary objects, points in the course being played Register R10, registers R11 to R1n for loading the scores of courses 1 to n, register R20 for loading the total score, register R21 for loading the highest score, and the like. The flag area 159F is an area for storing a flag for knowing the state of the game in progress. For example, the friend flag F1, the mode flag F2 for identifying the display range mode, and the necessity of output of the lines 1 to m are stored. Serif flags F31 to F3m, a game over flag F4 for identifying presence / absence of detection of a condition that has reached game over, a hit determination flag F5, and the like are included.

  9 is a diagram showing an example game course to which the present invention is applied, FIG. 10 is a diagram showing a game course selection screen shown in FIG. 9, and FIG. 11 is an example game to which the present invention is applied. FIG. 12 is a diagram showing a game area map for explaining the contents, FIG. 12 is a diagram schematically showing message output contents in communication processing with friends in the game of FIG. 11, and FIG. 13 is a diagram in the game of FIG. It is a figure which shows an example of the screen display of the message output expressed based on a communication process with a friend, and FIG. 14 is a figure which shows an example of the screen display of the battle | competition state with the boss character in the game of FIG.

  With reference to FIGS. 9-14, the outline | summary of the video game in the case of outputting the message useful for the progress of the game which is the characteristics of this invention is demonstrated. The game content of the video game is determined by a program stored in the ROM 21. In the embodiment, an example of a shooting game is shown. At the start of the game, the course shown in FIG. 9 is displayed. In FIG. 9, the inner side of the rectangular outer frame shows an image displayed on the display 30. The course display area 80 indicates a course that the player should proceed. The player starts the game from course 1 and clears course 1 before proceeding to course 2. When the player clears the course 2, the player can select the course 3 or the course 6, and selects a desired course. In this way, the player plays a game to clear course 5, which is the goal, while selecting the course he wants to go to. Further, for example, on the course selection screen when course 3 is cleared, course 4 is automatically selected as the next course. However, as will be described later, the course 4 can be changed to the course 7 as the next course. The clear course display areas 81a to 81e are portions indicating the cleared course, and a picture, a number, or the like indicating the cleared course is displayed in a square frame. In the example of FIG. 9, since there are display objects in the clear course display areas 81a to 81c and there are no display objects in the clear course display areas 81d to 81e, three courses are cleared. The course score display areas 82a to 82e are portions for displaying the score acquired by the player for each course. The score is determined so as to be given when the number of enemy objects destroyed by the player during the game or when a specific problem is solved. In the figure, the case where the score of the first, second, and third cleared courses is 50, 48, and 10 is shown. The total score display area 82 is an area for displaying the total number of points for each course, and 108 (= 50 + 48 + 10) is displayed. The high score display area 73 is a portion for displaying the highest score in the games played so far. The body number display area 74 is a part for displaying the number of usable player objects 60, and indicates that two other player objects 60 can be used.

When course 1 is selected at the beginning of the game, the start point screen of FIG. 11 is displayed as shown in FIG. A long distance from the start point to the mode switching point shown in FIG. 11 (for example, 100,000 in the unit of depth coordinates; the unit is arbitrary) is selected as the display area in the one-way scroll mode. In the display area in the one-way scroll mode, the width that can be displayed on the display screen 31 of the display 30 is selected to be the same as the screen size, and is used for scroll display from the top to the bottom. In the display area of the one-way scroll mode, for example, objects (objects) 71a to 71n (see FIG. 12) constituting background images such as buildings, trees, mountains, roads, and sky representing backgrounds or stationary objects on the course are sequentially displayed. Then, a plurality of enemy objects 72a to 72n appear at predetermined locations A to D in the middle thereof to attack the player object 60 or prevent the player object 60 from progressing.
Each of the locations A, B, C, and D in the display area in the one-way scroll mode repels the enemy objects 72a to 72n, informs the player of an appropriate operation method in order to successfully avoid the attack, It is determined where a message (or speech) for helping the player object 60 is displayed or output by voice. Then, as shown in FIG. 12, the message is displayed in the display area 31a, the face of the friend who is sending the message is displayed in the display area 31b, the score during play is displayed in the display area 31c, and the life of the player object (Amount that can withstand damage) is displayed in the display area 31d.

  A specific example of the message is shown schematically in FIG. Among the plurality of messages, a message set programmatically according to the location is displayed in the display area 31a. In this example of the game, a dialogue that is different depending on the type and location of a person or an appearance character is output as a sound and an image, and a message that informs an operation method suitable for the situation from a friend is displayed in relation to the occurrence of the dialogue. . Further, since the priority order is determined for each of the lines 1 to 9, if a condition for generating a plurality of lines is detected at the same timing, a line having a high priority is generated. In relation to the display of the message, the face of the fellow object 73 sending the message is displayed. The message indicates, for example, how to operate which switch of the controller 40 for performing the maneuvering method (“goes with brake” commanding the deceleration) when the player object 60 is assumed to be a fighter. An operation method that informs whether or not it should be displayed is displayed (message of “C button down” instructing to press the 47Cd button; preferably, the lower button of 4 buttons arranged in the top, bottom, left and right is displayed in different colors) If necessary, voice output (“go with the brake”) is also performed along with the message display. At location C, a message “Z or R pressed twice” is generated informing that the switch 47Z or 47R is pressed twice. As described above, the content of the message varies depending on the locations A to D due to the difference in the shape and movement of the enemy object. The player operates the joystick 45 to control the position or direction of the player object 60, and operates the switch according to the message output among the switches 47A to 47Z. Even if it is difficult to operate a simple switch, it is easy to perform an appropriate operation, and it is easy to attack an enemy or avoid danger by quickly instructing an operation. It is easy to go to the scene.

  When the player object 60 reaches the mode switching point, the display mode is switched to the all range mode in which scrolling is possible in all directions. In the all range mode, as shown in FIG. 14, the boss character (boss object) is positioned at the center of the displayable range, and the player object 60 attacks while turning around the boss character 74. The range in which the player object 60 can move is selected as a short distance (for example, 10,000) vertically and horizontally with the boss character 74 as the center. When the player object 60 approaches the boundary of the moving range, the moving direction of the player object 60 is automatically switched by switching the direction of the camera that is shooting the player object 60. At this time, a reduced map is displayed in the map display area 31c on the lower right side of the display screen 31 so that the player can easily understand the position where the player object 60 is located. On the map, symbols of the boss character 74, the player object 60, and the fellow object 73 are displayed.

FIG. 15 is a main flowchart of the video game system according to one embodiment of the present invention. Next, the principle of the present invention will be briefly described with reference to FIGS. 9 to 15 along the main flowchart of FIG.
When the power is turned on, the CPU 11 sets the video game machine 10 to a predetermined initial state at the start. For example, the CPU 11 transfers the startup program among the game programs stored in the program area of the ROM 21 to the program area 151 of the RAM 15, sets each parameter to an initial value, and then sequentially performs the processing of the flowchart of FIG. 15. Execute.
The operation of the flow in FIG. 15 is performed every frame (1/30 second). Until the course is cleared, step 1 (indicated by “S” in the drawing), step 2, step 3 to step 3 are performed. After the operation of step 17 is performed, the operations of step 3 to step 17 are repeated. If the game is over without succeeding in clearing the course, the game over process of step 18 is performed. If the course is successfully cleared, the process returns from step 16 to step 1.

  That is, the game course screen and / or course selection screen is displayed in step 1, but when the game is started after the power is turned on, the course screen as shown in FIG. 9 is displayed. In addition, after clearing course 1 shown in FIG. 9 and proceeding to course 2, and clearing course 2 as well, the course selection screen shown in FIG. 10 is displayed. When a course is selected on the course selection screen, the course selection subroutine shown in FIG. 16 (the operations in steps 101 to 116) is performed, details of which will be described later.

  Since the game of the course 1 is performed immediately after the start, the game start process of the course is performed in step 2. For example, the register area 159R and the flag area 159F are cleared (initial values are set for the registers R6 and R7), and various data necessary for playing the game of the course 1 (or the selected course) are read from the ROM 21. Then, the data is transferred to the storage areas 151 to 155 of the RAM 15.

  In step 3, a mode switching subroutine process is performed. Immediately after starting the game, the player object 60 is at the start point in FIG. 11, but the period from the start point (Z coordinate = 0) to the mode switching point (Z coordinate = −100,000) is the one-way scroll mode. In step 121 in FIG. 17, it is determined that the player object is not in the all-range mode position. In step 122, the flag F <b> 2 is reset and switched to the one-way scroll mode. The detailed operation will be described later with reference to FIG.

  In step 4, controller processing is performed. This process detects whether the joystick 45, the cross switch 46, or the switches 47A to 47Z of the controller 40 has been operated, reads the detection data (controller data) of the operation state, and writes the read controller data. Is done by. The detailed operation will be described later with reference to FIG.

  In step 5, communication processing with a friend is performed. This processing is performed as a message display or a voice output informing an appropriate operation method that is a feature of the present invention. That is, in places A to D in the one-way scroll period shown in FIG. 11, a message or dialogue as shown in FIG. 13 is displayed or output by voice to notify the player of an appropriate operation method. An example of the detailed operation will be described later with reference to FIGS. It should be pointed out that the content and occurrence conditions of the message are merely examples, and vary depending on the content or type of the game.

  In step 6, supplies are replenished from the headquarters. In this process, even if the player object 60 is attacked by an enemy and the aircraft is damaged and cannot fly normally, items for supporting the player from the headquarters or friends (for example, parts for repairing wings of fighters, Firearms, life, etc.). When the item is displayed on the screen, if the player performs an operation to acquire it (such as placing the aircraft on the item or hitting the item by shooting), the damaged part is restored to its original state. You can get items that are advantageous to letting you attack or attack enemies. In this case, since the items required by the player differ depending on the damage state of the player object, the types of items are automatically determined in a predetermined priority order. The detailed operation will be described later with reference to FIGS.

  In step 7, processing for displaying the player object 60 is performed. This process differs depending on whether the player object 60 exists in the one-way scroll area or the all-range area, but basically, the process is based on the operation state of the joystick 45 operated by the player and the presence or absence of an attack from the enemy. This is a process of changing the direction and shape. For example, the display control of the player object 60 is performed by calculating the changed polygon data based on the program transferred from the storage area 22j, the polygon data of the player object transferred from the storage area 24a, and the operation state of the joystick 45. Ask. As a result, color data is written in each address of the storage area 154a corresponding to a plurality of triangular surfaces composed of a plurality of polygons so that a pattern or colored paper specified by the texture data is pasted. .

  In step 8, camera processing is performed. For example, the coordinate calculation of the angle at which each object is viewed is performed so that the line of sight or field of view when viewed through the camera finder becomes an angle designated by the player.

  In step 9, a fellow object is processed. The companion object is calculated so as to have a predetermined positional relationship with the player object in the one-way scroll region. For example, the fellow object is not displayed when flying behind the player object 60, and flies forward when the player object 60 decelerates. An arithmetic process is performed to display the image as if it appears. In the all-range area, when the fellow object is flying in front of the player object 60, the symbol is displayed on the reduced map together with the fellow aircraft, and only the symbol is displayed on the reduced map when flying behind. . Details thereof will be described later with reference to FIGS.

  In step 10, the enemy object is processed. This process is based on a program partially transferred from the storage areas 22l and 24d, so that the enemy object 72a˜ The display position of 72n and / or its shape is obtained by calculation of polygon data, and the changed image is displayed. Thereby, the enemy object works to have some influence on the player object 60. Details thereof will be described later with reference to FIGS. 27 and 28.

  In step 11, a background (or still) object is processed. In this process, the display positions and shapes of the still objects 71a to 71n are obtained by calculation based on the program partially transferred from the storage area 22m and the polygon data of the still objects transferred from the storage area 24c. Details thereof will be described later with reference to FIG.

  In step 12, the RSP 122 performs a drawing process. That is, under the control of the CPU 11, the RCP 12 is based on the texture data of moving objects such as enemies, players, and friends and stationary objects such as backgrounds stored in the image data area 154 of the RAM 15. Image data conversion processing (coordinate conversion processing and frame memory drawing processing) for display processing of a still object is performed. Specifically, each address of the storage area 154d corresponding to the surface of each triangle formed by a plurality of moving objects and a plurality of polygons for each stationary object is designated by texture data determined for each object. Color data is written to paste the color and the like. Details thereof will be described later with reference to FIG.

  In step 13, the RCP 12 performs voice processing based on voice data such as messages, music, and sound effects. Details thereof will be described later with reference to FIG.

  In step 14, the player object, the moving object, the stationary object, the enemy object, and the like are displayed on the display screen 31 by reading out the image data stored in the frame memory area 152 based on the result of the rendering process performed in step 12 by the RCP 12. Is displayed.

  In step 15, the RCP 12 reads out audio data obtained as a result of the audio processing in step 13, thereby outputting audio such as music, sound effects or conversation.

  In step 16, it is determined whether or not the course has been cleared (course clear detection). If the course has not been cleared, it is determined in step 17 whether or not the game is over. Steps 3 to 17 are repeated until the game over condition is detected. When it is detected that the number of misses allowed by the player reaches a predetermined number, or a game over condition such as the use of a predetermined amount of the life of the player object has been detected, the game is continued or backed up in step 18. Game over processing such as data storage selection processing is performed. When a condition for clearing the course is detected in step 16 (eg, defeating the boss), the course clear process is performed in step 19 and then the process returns to step 1. Here, in the course clearing process, for example, the score of the course played immediately before stored in the score register is loaded into the corresponding course-specific score register, the score by course is displayed as the score by course of FIG. If multiple courses are cleared, the total score is obtained and displayed. In the calculation of the score by course, a bonus score when the course is cleared may be added as necessary. The detailed operation of each subroutine will be described below.

Details of the course selection (step 1 of the main routine), which is a feature of the present application, will be described with reference to FIG. In step 101, as shown in FIG. 9, the CPU 11 performs a display process for displaying the course-specific scores stored in the register area 159R of the RAM 15 acquired by the player for each course in the course score display areas 72a to 72e. Do. Specifically, the CPU 11 registers image data for representing the score in the display list. Hereinafter, unless otherwise specified, display processing refers to registering image data in a display list. In step 102, the CPU 11 sums up the scores of each course and performs display processing for displaying the total points in the total score display area 72. In step 103, the CPU 11 performs a display process for displaying the number of usable player objects 60 in the body number display area 74.
Although not shown in FIG. 16, course display processing, high score display processing, and the like are performed in addition to the display processing in steps 101, 102, and 103. In the course display process, the CPU 11 registers image data as displayed in the course display area 80 of FIG. 9 in the display list.
In step 104, the CPU 11 determines whether or not the start switch 47S is pressed. If the start switch 47S is not pressed, the process proceeds to step 105.
In step 105, the CPU 11 determines whether or not the button switch 47A is being pressed. If the button switch 47A is not pressed, image processing and sound processing performed every frame are performed, a predetermined image is displayed on the display 30, and after outputting the sound, the process returns to step 104, and the button switch 47A is If it has been pressed, go to Step 110.

On the other hand, if the start switch 47S is pressed in step 104, the process proceeds to step 106. In step 106, the CPU 11 performs a display process of the course selection window 75 as shown in FIG. In the course selection window 75, three items of "Recommend Course", "Change Course", and "Redo Course" are displayed, and a cursor (instruction means) for designating which item to select is moved. Displayed as possible. In FIG. 10, the cursor is represented by an arrow, but the color of the selection item may be reversed or the item may be indicated by a design.
In step 107, the CPU 11 performs a movement process for moving the instruction means up and down. Specifically, the CPU 11 detects whether the joystick 45 is pulled forward or pressed in the opposite direction. When the joystick 45 is pulled, the CPU moves the instruction unit downward, and when it is pressed, moves the instruction unit upward.
In step 108, the CPU 11 determines whether or not the button switch 47A is being pressed. If the button switch 47A is not pressed, image processing and sound processing performed every frame are performed, a predetermined image is displayed on the display 30, and after outputting sound, the process returns to step 107, and the button switch 47A is If it has been pressed, go to Step 109.
In step 109, when the button switch 47A is pressed, the CPU 11 determines which item is selected by the instruction means, and determines whether the selected item is “Proceed with Course”. If the selection item is “recommend course”, the process proceeds to step 110.
In step 110, the CPU 11 stores data of fellow objects in all courses in the fellow data storage area 158 of the RAM 15. The data of the fellow object is the state of the fellow object in the course cleared last time. In the present invention, the fellow object leaves the battle line when receiving much damage during battle. If the fellow object leaves the battle line, it can not participate in the next course if there is a lot of damage, and can join the next course if there is little damage. The status of whether or not it can participate in the next course is the status of the fellow object.
In step 111, the CPU 11 performs initial setting for the next course. For example, resetting of flags, setting of various parameters, reading of various kinds of object data to be displayed into the RAM 15, and the like. When step 111 ends, the process returns to the main routine and proceeds to step 2.

  On the other hand, if the selection item is not “recommend course” in step 109, the process proceeds to step 112. In step 112, the CPU 11 determines whether or not the selection item is “change course”. If “change course” is selected, the process proceeds to step 113. In step 113, the CPU 11 performs setting so as to select a course different from the course to be advanced next shown in FIG. For example, what is set to proceed from course 3 to course 4 is set to proceed from course 3 to course 7. Next, the process returns to step 104.

  On the other hand, if the selection item is not “change course” in step 112, the process proceeds to step 114. In step 114, the CPU 11 reduces the number of player objects stored in the register area 159R of the RAM 15 by one. In step 115, the data of the fellow object is read from the fellow data storage area 158 of the RAM. In step 116, an initial setting is made for the previously cleared course. When step 111 ends, the process returns to the original routine and proceeds to step 2.

  With reference to FIG. 17, the operation of the subroutine of the mode switching process (step 3 of the main routine) will be described. When the player object reaches the mode switching point in FIG. 11, it is determined (or detected) that the player is in the all-range mode position in step 121, and all-range mode demonstration (hereinafter referred to as “demo”) processing is performed in step 123. It is determined whether or not the processing has ended. Initially, it is determined that the demo process has not been completed. In step 124, image processing for demo display in the all range mode is performed. In step 125, audio processing for generating demo sound in the all range mode is performed. After that, the process proceeds to the above-described drawing process in step 12.

On the other hand, if it is determined in step 123 that the demo process has been completed, a process for switching to the all range mode (switching the mode flag F2 to the all range mode) is performed in step 126, and then the process returns to the main routine.
As a result, there is an advantage that when the unidirectional scroll mode is switched to the all range mode, the scroll range can be switched without causing a sense of incongruity that the screen scroll direction suddenly changes. In addition, by switching the scroll range, it is possible to reduce the burden on the CPU in the one-way scroll period compared to the case where the scroll range is set to the full range over the entire period of the course. Compared with the case where it does, the scroll display which was rich in change is attained, the image expression of a wide variety of games is attained, and there exists an advantage which can raise the interest of a player further.

  With reference to FIG. 18, the operation of the subroutine of the controller process (step 4) will be described. In step 131, it is determined whether or not there is a controller data read request command. If not, it waits for a read request command to be generated in step 131. If it is determined that there is a read request command, the command is supplied to the controller control circuit 18 in step 132. In response to this, the controller control circuit 18 reads the operation state data of each of the controllers 40A to 40D and performs processing. In step 133, the controller control circuit 18 determines whether or not the reading of the operation state data of all the controllers 40A to 40D has been completed, but waits until it has not been completed. When it is detected that the operation has been completed, the operation state data of the controllers 40A to 40D is written from the controller control circuit 18 to the storage area 156 of the RAM 15 via the bus control circuit 121 in step 134.

  With reference to FIGS. 19-21, the operation | movement of the subroutine of a communication process (step 5) with a friend is demonstrated. In step 141a, it is determined whether or not the player object has reached the location A. If it is determined that the player object has not reached the location A, after the processing in steps 141b, 141c, 151a, 151b, 151c, and 151d, the main Return to the routine. When it is determined in step 141a that the player object has reached the place A, it is determined in step 142a whether or not the friend 1 exists. If the first friend is present, it is determined in step 143a whether a line or message is currently being processed. If it is determined that the line is being processed, it is necessary to turn on the flag corresponding to the line among the line flags F31 to F3n, and to select any one of the lines, step 144a. A priority comparison is performed at. In step 145a, it is determined whether or not the priority of the serif 1 is higher than the serif currently being processed. If so, the process proceeds to step 146a. In step 146a, the display process of the dialogue 1 is performed. For example, the line 1 is a message for successfully fending off the enemy's attack that appears at the location A against the player object from the first friend (replace with the brake), and the lower button of the switch 47C (switch 47Cd) ) Will be displayed. In step 147a, processing for outputting speech 1 by voice is performed. If it is determined in step 143a that the line is not being processed, it is not necessary to determine the priority order, so the process proceeds to step 146a. In step 142a, there is no first friend or the line being processed in step 145a. Is determined to have a lower priority than the line 1, the process returns to the main routine.

On the other hand, when it is determined that the position of the player object is not in place A but in place B, the operations of steps 141b to 147b are performed. These steps 141b to 147b are operations for outputting the speech 2 and are the same as the operations of the steps 141a to 147a except that the speech is different. Therefore, the symbol “a” is substituted for the symbol “a” after the corresponding step number. b ", and detailed description thereof is omitted.
If the condition for outputting the speech depends on time, for example, if it depends on time A since the discovery of the boss, it is determined in step 141c that it is time A. In step 142c, the second friend When it is determined that the user is near, the operations of Steps 143c to 147c are performed. Steps 143c to 147c are an operation in which the second friend sends a message (serial line 3 in FIG. 13) for teaching how to defeat the boss (attack method 3). Since it is the same as the operation of 147a, its detailed description is omitted.
Further, as a condition for outputting the speech, when the third friend is aimed by the enemy, this is determined in step 151a, and the operations in steps 152a to 156a are performed. Steps 152a to 156a are operations for outputting a message for the fellow to teach how to defeat the boss (line 5 in FIG. 13), and are the same as the operations in steps 142a to 146a except that the lines are different.
In addition, when the condition for outputting the speech helps the third party, that is determined in step 151b, and the operations in steps 152b to 156b are performed. Steps 152b to 156b are operations for generating a dialogue 6 when helping the third friend, and are the same as the operations of steps 152a to 156a except that the dialogue is different.
Further, if the line output condition is to output the line 8 of the player object that has been attacked by the enemy, this is determined in step 151c, and the operations in steps 152c to 156c are performed. When the line 9 is output when the line is output when the boss is defeated, this is determined in step 151d, and the operations in steps 152d to 156d are performed.

As described above, a message for assisting the player in performing an appropriate operation (lines 1 to 4 in the example of FIG. 13) is displayed or output in voice, so that advice on an appropriate operation method can be given depending on the situation. If it is output, even if the operation method is difficult, the progress of the game can be facilitated, the player can have a sense of accomplishment and satisfaction, and the screen or course can be easily cleared. Further, by displaying and / or outputting an appropriate message (lines 5 to 9 in the example of FIG. 13) according to the scene or situation of the game, an expression rich in presence according to the progress of the game Can improve the fun of the game.
Note that a message for helping the player to perform an appropriate operation and a message generated by display or sound depending on the situation are not limited to the embodiment of FIG. 13 and are appropriately changed depending on the type and content of the game. However, the present invention is not limited to the description of the examples. For example, the operation method of each switch has been described for the case of pressing any one of a large number of switches for the sake of simplicity of explanation. However, the same switch is pressed a plurality of times, or a plurality of switches are predetermined combinations. You may decide to press.

With reference to FIGS. 22-23, the operation | movement of the subroutine of material supply processing (step 6) is demonstrated. Until the player object reaches a predetermined place or position where the item can be acquired, it is determined in step 161 that the player object is not in the place, and the time (T1) for displaying the item is not set in step 163 (T1 = 0) is determined, and it is determined in step 170 that it is not a condition for displaying a mark (item box) indicating that the item has the right to acquire an item. In step 172, the item is set. After it is determined that there is no error, the process returns to the main routine. Thereafter, the processing of the main routine is performed at the frame period.
Then, when the player object enters a place where the item can be acquired, this is determined in step 161. In step 162, a fixed time (T1) is set in the timer register as a display time of a mark that informs that the condition is that the item can be acquired. In step 163, it is determined that the time T1 is larger than 0, and in step 164, the unit time (for example, 1 second) is subtracted (T1-1). In step 165, a mark indicating that an item can be requested is displayed if the player presses an item display request switch (for example, 47Cr). In step 166, it is determined whether or not the switch for requesting an item has been pressed. If it is determined that the switch has not been pressed, steps 170 and 172 are performed, and then the process returns to the main routine. Then, steps 161, 163 to 166, 170, and 172 are repeated for each frame period, thereby waiting for the switch 47Cr to be pressed within a predetermined time.

On the other hand, if it is determined in step 166 that the display request switch has been pressed during the repetition of the above-described standby operation, 0 is set (reset) in the timer register in step 167, and a request for an item is received from the associate in step 168. Preparations are made for the output of the lines that indicate the receipt. This line is output as an image and sound in steps 14 and 15. In step 169, a process (item set process) for displaying a mark (item box) indicating a condition under which an item can be acquired is performed. In step 170, it is determined that the item box can be displayed. In step 171, processing for displaying the item box is performed. When it is determined in step 172 that the item box is displayed, in the next step 173, an operation for the player to acquire the item box (for example, an operation of shooting the item box or superimposing the player object on the item box) It is determined whether or not an operation for determining the position is performed. If it is determined that the item box has been acquired, in steps 173 to 180, processing for supplying necessary items according to the state of the player object is performed. For example, if the player object is a fighter for a shooting game, it is determined in step 174 whether or not the wing is in a predetermined state. If there is no predetermined wing, a wing is provided as a supply item in step 175. If there is a predetermined wing, it is determined in step 176 whether the amount that can withstand life or damage is equal to or less than a certain value (128). If it is determined that the following is true, an item for restoring life is given in step 177. If the life is not less than the constant value (128), it is determined in step 178 whether there are two beam guns (twin beams). If it is determined that there is not, a twin beam is applied at step 179. If it is determined that there is, a bomb is applied in step 180.
In this way, items that are effective for the player to advance the game are replenished according to the state of the player object, so the player can continue the game and easily clear the previous scene or course, and the sense of accomplishment of the game Or, satisfaction can be easily obtained. In addition, the player can play as if he / she received a command while actually operating a fighter plane or flew while receiving assistance, which can further enhance the fun of the game. The items to be replenished vary depending on the type of game and the content of the game, and game software developers can make various changes with reference to the technical idea described in this embodiment.

Next, the player object processing subroutine will be described with reference to the flowcharts of FIGS. 32, 33, 36, 38, 39 and 42. FIG. First, in step 301, the CPU 11 reads joystick data stored in the control pad data area and corrects the data. Specifically, the data at the center of the joystick is deleted so that the data becomes “0” when the stick comes near the center (for example, a radius of 10 counts). In this way, the joystick data can be accurately set to “0” even when the manufacturing error of the stick or when the player's finger shakes slightly. In addition, the predetermined range of the outer peripheral portion of the operable range of the stick is also corrected. Specifically, correction is made so that unnecessary data is not output in the game.
In step 302, the CPU 11 obtains joystick data Xj, Yj used during the game. Since the data obtained in step 301 is the count value of the counter 444, it is converted to a value that can be easily processed by the game. Specifically, Xj becomes “0” when the stick is not tilted, becomes “+60” when tilted to the maximum in the −X axis direction (left direction), and reaches the maximum in the + X axis direction (right direction). Becomes “-60” when defeated. Yj becomes “0” when the stick is not tilted, becomes “+60” when it is tilted to the maximum in the + Y axis direction (forward direction), and “−” when it is tilted to the maximum in the −Y axis direction (backward direction). 60 ".
In step 303, the CPU 11 sets a basic speed As0 in the three-dimensional game space of the player object. As0 is the distance of the game space that the player object travels in one frame. This As0 can be freely set according to the course and scene.
In step 304, the CPU 11 reads the data of the button switch Cl stored in the control pad data area, and determines whether or not the player has pressed the button switch Cl. This button switch Cl is used as a boost switch for increasing the progress speed of the player object during the game. When the button switch Cl is pressed, for example, when the player object is an airplane, image processing such as jet injection becomes intense and jet sound becomes intense. If it is determined that the player is pressing the button switch Cl, the process proceeds to step 305.
In step 305, the CPU 11 performs processing for giving a vibration generation signal to the vibration generation circuit 53 of the controller. As a result, the controller vibrates when the button switch Cl is pressed, and the vibration stops when the button switch Cl is not pressed. As described above, when the controller is vibrated during the boost, the realistic sensation of the game is enhanced and the player can be more interested.
In step 306, the CPU 11 calculates As = As0 + Asα. As is the speed of the player object, and Asα is the speed of increase of the player object during boosting. By performing this calculation, the moving distance of the three-dimensional position in the next frame of the player object is increased. Next, the process proceeds to step 310.

On the other hand, if it is determined in step 304 that the player has not pressed the button switch Cl, the process proceeds to step 307. In step 307, the CPU 11 reads the data of the button switch 47Cd stored in the control pad data area, and determines whether or not the player has pressed the button switch 47Cd. The button switch 47Cd is used as a brake switch that slows down the progress speed of the player object during the game. When the button switch 47Cd is pressed, for example, when the player object is an airplane, image processing such as reverse injection is performed, and a reverse injection sound is generated. If it is determined that the player is pressing the button switch 47Cd, the process proceeds to step 308. In step 308, the CPU 11 performs vibration processing as in step 305.
In step 309, the CPU 11 calculates As = As0−Asβ. Asβ is the decreasing speed of the player object during braking. By performing this calculation, the moving distance of the three-dimensional position in the next frame of the player object is reduced. Next, the process proceeds to step 310.

  On the other hand, if it is determined in step 307 that the player has not pressed the button switch 47Cd, the process proceeds to step 310. In step 310, the CPU 11 determines whether or not it is the all range mode. Specifically, the CPU 11 detects that the all range mode flag in the flag area 159F of the RAM 15 is on (set) or off (reset), and if the all range mode flag is set, the current game mode is set. It is determined that the mode is the all range mode, and if the all range mode flag is in the reset state, it is determined that the current game mode is the one-way scroll mode. If it is determined that the mode is not the all range mode, the process proceeds to step 320.

In step 320, the CPU 11 performs the following calculations. However, in the present specification, multiplication is represented by “*”.
θx1 = 0.68 * Xj
θy1 = 0.68 * Yj
Xs =-As * sin θx1
Zs =-As * cos θx1
Ys =-As * sin θy1
Here, the meanings of θx1, θy1, Xs, Zs, and Ys will be specifically described with reference to FIG. θx1 is the angle between the direction vector of As and the −Z axis direction on the XZ coordinates of the player object 60 (planar coordinate system when the player object 60 is viewed from above) and tilts the joystick stick to the left. It is a value that increases in the + direction and increases in the-direction when tilted to the right. From the equation, the value of θx1 increases or decreases from -40.8 (0.68 * 60) to 40.8 (0.68 * (-60)) in proportion to the inclination of the stick. Since the player object 60 advances in the direction of As, the direction of the player object 60 is changed in the range of −40.8 (0.68 * 60) to 40.8 (0.68 * (− 60)) degrees to the left and right. For example, this direction is the nose direction when an airplane as shown in FIG. 35 is used as the player object 60, the direction of a cannon when a tank is used, and the face direction when an animal is used. θy1 is the angle between the direction vector of As and the −Z-axis direction on the YZ coordinates of the player object 60 (the plane coordinate system when the player object 60 is viewed in plan from the left side to the right). When the stick is tilted forward, the value increases in the + direction, and when the stick is tilted backward, the value increases in the-direction. From the equation, the value of θx1 increases or decreases from -40.8 (0.68 * 60) to 40.8 (0.68 * (-60)) in proportion to the inclination of the stick. Since the player object 60 advances in the direction of As, the direction is changed in the range of −40.8 (0.68 * 60) to 40.8 (0.68 * (− 60)) degrees up and down. Xs, Zs and Ys are the X-axis component, Y-axis component and Z-axis component of As, respectively.

In step 321, the CPU 11 determines whether or not there is a left portion of the player object 60. In this embodiment, since an explanation is given using an airplane as an example of the player object, it is determined whether or not there is a left wing. When a tank is used as a player object, it is a caterpillar instead of a wing, and when an animal is used, it is a limb. If it is determined that there is a left portion of the player object 60, the process proceeds to step 322. In step 322, the CPU 11 determines whether or not there is a right part of the player object 60. If it is determined that the right portion of the player object 60 is present, the process proceeds to step 323. In step 323, the CPU 11 performs the following calculation formulas.
Xa = Xa + Xs
Ya = Ya + Ys
Za = Za + Zs
By this calculation, the velocity (Xs, Ys, Zs) of the player object 60 is added to the coordinates (Xa, Ya, Za) of the previous frame (the right side of the above formula), and the coordinates (Xa, Ya, Za) (the left side of the above equation) is determined. Next, the process proceeds to step 330 in FIG.

On the other hand, when it is determined in step 321 that there is no left portion of the player object 60, the process proceeds to step 324. In step 324, the CPU 11 performs the calculation of the following calculation formula.
Xs = Xs-2.5
Ys = Ys-2.5
By this calculation, the speed in the X-axis direction is subtracted and the speed in the Y-axis direction is subtracted. Accordingly, when the game is advanced, the player object 60 is displayed so as to be pulled in the lower left direction toward the screen. For example, even when the stick is not tilted, the player object 60 is displayed so as to gradually move toward the lower left toward the screen.

On the other hand, when it is determined in step 322 that there is no right portion of the player object 60, the process proceeds to step 325. In step 325, the CPU 11 performs the calculation of the following calculation formula.
Xs = Xs + 2.5
Ys = Ys-2.5
By this calculation, the speed in the X-axis direction is added and the speed in the Y-axis direction is subtracted. Accordingly, when the game is advanced, the player object 60 is displayed so as to be pulled in the lower right direction toward the screen. For example, even if the stick is not tilted, the player object 60 is displayed so as to gradually move in the lower right direction toward the screen. Next, the process proceeds to step 323.

  On the other hand, if it is determined in step 310 that the CPU 11 is not in the all range mode, the process proceeds to step 330 in FIG.

  First, the difference between the one-way scroll mode and the all-range mode is described. The one-way scroll mode has one coordinate system as shown in FIG. 34, whereas the all-range mode has coordinates as shown in FIG. There are two systems. Describing each coordinate system in the all range mode in detail, the X1 (-Z1) coordinate in FIG. 37 is a coordinate for representing a three-dimensional space in which various objects exist, and is always fixed during the game execution. Coordinates. (In the present embodiment, this is referred to as “game space coordinates”.) The X2 (-Z2) coordinates are coordinates that change based on the movement of the player object. As will be described later in the camera processing, since the -Z2 axis direction corresponds to the shooting direction of the camera, the Z2 axis indicates the vertical direction on the display screen. (In the present embodiment, this is referred to as “player coordinates”.) The player object 60 operates in the player coordinates in substantially the same manner as in the one-way scroll mode. Thus, by using two coordinate systems, it is possible to construct an all-range mode system capable of scrolling in all directions while using a one-way scroll mode system. Therefore, the player can enjoy the game easily because the operation method hardly changes even if the mode changes.

In step 330, the CPU 11 calculates the following calculation formula.
θx1 = 0.68 * Xj
θy1 = 0.68 * Yj
θx2 = 0.03 * θx1 + θx2 (add 0.03 * θx1 for each frame)
Xs =-As * sin (θx1 + θx2)
Zs =-As * cos (θx1 + θx2)
Ys =-As * sin θy1
θx1, θy1, θx2, Xs, Zs, and Ys will be specifically described with reference to FIG. θx1 is the angle between the direction vector of As and the −Z2 axis direction on the XZ coordinate of the player object 60 (the plane coordinate system when the player object 60 is viewed from above), and tilts the joystick stick to the left. It is a value that increases in the + direction and increases in the-direction when tilted to the right.
θy1 is the angle between the direction vector of As and the −Z2 axis direction on the YZ coordinates of the player object 60 (the plane coordinate system when the player object 60 is viewed in plan from the left side to the right). When the stick is tilted forward, the value increases in the + direction, and when the stick is tilted backward, the value increases in the-direction.
θx2 is an angle between the −Z1 axis direction and the −Z2 axis direction on the XZ coordinate of the player object 60 (a plane coordinate system when the player object 60 is viewed from above), and is proportional to θx1 every frame. Increase or decrease. That is, the value increases in the + direction when the stick of the joystick is tilted to the left, and increases in the-direction when the stick is tilted to the right. From the equation, the value of θx2 increases or decreases in the range of -1.224 (= 0.03 * 0.68 * (-60)) to 1.224 (= 0.03 * 0.68 * 60) for each frame in proportion to the inclination of the stick.
Xs, Zs and Ys are the X-axis component, Y-axis component and Z-axis component of the game space coordinates of As, respectively.

In step 332, the CPU 11 determines whether or not there is a left portion of the player object 60. If it is determined that the left portion of the player object 60 is present, the process proceeds to step 333.
In step 333, the CPU 11 determines whether there is a right portion of the player object 60. If it is determined that the right portion of the player object 60 is present, the process proceeds to step 334. In step 334, as in step 323, the CPU 11 calculates the following calculation formula.
Xa = Xa + Xs
Ya = Ya + Ys
Za = Za + Zs
By this calculation, the speed (Xs, Ys, Zs) in the game space coordinate system of the player object 60 is added to the game space coordinates (Xa, Ya, Za) of the previous frame, and the game space coordinates (Xa) of the next frame , Ya, Za). Next, the process proceeds to step 350 in FIG.

On the other hand, when it is determined in step 332 that there is no left portion of the player object 60, the process proceeds to step 335. In step 335, the CPU 11 calculates the following calculation formula.
Xs = Xs-2.5 * cos θx2
Zs = Zs-2.5 * sin θx2
Ys = Ys-2.5
By this calculation, the speed in the X-axis direction in the player space is subtracted, and the speed in the Y-axis direction is subtracted. Accordingly, when the game is advanced, the player object 60 is displayed so as to be pulled in the lower left direction toward the screen. For example, even when the stick is not tilted, the player object 60 is displayed so as to gradually move toward the lower left toward the screen.

Next, when it is determined in step 333 that there is no right portion of the player object 60, the process proceeds to step 336. In step 336, the CPU 11 calculates the following calculation formula.
Xs = Xs + 2.5 * cos θx2
Zs = Zs-2.5 * sin θx2
Ys = Ys-2.5
By this calculation, the speed in the X-axis direction in the player space is added, and the speed in the Y-axis direction is subtracted. Accordingly, when the game is advanced, the player object 60 is displayed so as to be pulled in the lower right direction toward the screen. For example, even if the stick is not tilted, the player object 60 is displayed so as to gradually move in the lower right direction toward the screen. Next, the process proceeds to step 334.

  In the drawing, for the sake of simplification, the controller angle is described so as to be directly reflected in the player object 60 for each frame. However, in detail, the filtering process is performed while θx1 is derived from 0.68 * Xj. Has been done. Similarly, filtering is performed while θy1 is derived from 0.68 * Yj. Specifically, this filter processing does not mean that the value of 0.68 * Xj immediately becomes θx1 in one frame, but the CPU 11 gradually approaches the value of θx1 to 0.68 * Xj over a plurality of frames. In this process, θx1 = 0.68 * Xj is set. For example, 0.68 * Xj is divided by Nf (predetermined natural number), 0.68 * Xj / Nf is added to θx1 between Nf frames, and θx1 = 0.68 * Xj. The filtering process for deriving θy1 from 0.68 * Yj is similar to the filtering process for deriving θx1 from 0.68 * Xj. By this filtering process, it is possible to prevent the player object 60 from moving violently due to a sudden operation of the joystick, causing the screen to change drastically and putting a burden on the player's eyes or making the operation of the player object 60 difficult.

  In step 350, the CPU 11 performs a hit determination of the player object 60. Details of the hit determination will be described using steps 351 to 354 in FIG. Steps 351 to 354 are standard hit determinations, and the same hit determination of fellow objects described later.

In step 351 of FIG. 39, the CPU 11 determines whether or not ABS (OBJ2x−OBJ1x) ≦ OBJ1r. OBJ1 is an object to be hit and is a player object 60 in this embodiment. OBJ2 is an object approaching OBJ1, and in this embodiment is an attack object such as a fellow object, an enemy object, a stationary object, or a laser object emitted by the enemy object. OBJ1x is the X coordinate value of OBJ1, and OBJ2x is the X coordinate value of OBJ2. OBJ1x and OBJ2x may be game space coordinates or player coordinates as long as they are X coordinate values in the same coordinate system. ABS () represents the absolute value of the numerical value in (). OBJ1r is a value indicating the length of half of one side of the cube when OBJ1 is considered as a cube. In other words, OBJ1r is a value indicating the hit determination range of OBJ1. If ABS (OBJ2x−OBJ1x) ≦ OBJ1r, the process proceeds to step 352.
In step 352, the CPU 11 determines whether or not ABS (OBJ2y−OBJ1y) ≦ OBJ1r. OBJ1y is the Y coordinate value of OBJ1, and OBJ2y is the Y coordinate value of OBJ2. OBJ1y and OBJ2y may be game space coordinates or player coordinates as long as they are Y coordinate values in the same coordinate system. If ABS (OBJ2y−OBJ1y) ≦ OBJ1r, the process proceeds to step 353. In step 353, the CPU 11 determines whether or not ABS (OBJ2z−OBJ1z) ≦ OBJ1r. OBJ1z is the Z coordinate value of OBJ1, and OBJ2z is the Z coordinate value of OBJ2. OBJ1z and OBJ2z may be game space coordinates or player coordinates as long as they are Z coordinate values in the same coordinate system. If ABS (OBJ2z−OBJ1z) ≦ OBJ1r, the process proceeds to step 354.

  In step 354, the CPU 11 determines that OBJ2 and OBJ1 have been hit, and sets a hit determination flag in the flag area 159F of the RAM 15. The player object 60 of the present embodiment is composed of three objects, a main body object 61 (hereinafter, main body 61), a left wing object 60L, and a right wing object 60R. By registering each object in the display list, the display 30 is displayed. Can be displayed. In addition, as shown in FIG. 35, the player object 60 makes a determination of four points, one for each of the upper part of the main body 61, the lower part of the main body 61, the part near the main body of the left wing 62, and the part near the main body of the left wing 63. There is a point. In step 351 to step 354, a hit determination is performed for each point, and it is determined whether or not a hit determination flag is set for each point. Then return to the original routine.

On the other hand, if ABS (OBJ2x−OBJ1x) ≦ OBJ1r is not satisfied in step 351, the process returns to the original routine.
On the other hand, if it is not ABS (OBJ2y-OBJ1y) ≤OBJ1r in step 352, the process returns to the original routine.
On the other hand, if ABS (OBJ2z−OBJ1z) ≦ OBJ1r is not satisfied in step 353, the process returns to the original routine.
On the other hand, when step 350 ends, the process proceeds to step 360.

In step 360, the CPU 11 determines whether another object has hit the lower part of the main body 61 of the player object 60. Specifically, the CPU 11 detects whether or not a hit determination flag in the flag area 159F of the RAM 15 is set. If another object hits the lower part of the main body 61, the process proceeds to step 361. In step 361, the CPU 11 calculates the following calculation formula.
R1 = R1-40
R1 indicates the amount of damage that the main body 61 can withstand. In this embodiment, the initial value is 255. From the calculation formula, when the lower portion of the main body 61 is damaged, R1 is subtracted by 40. For example, when the damage is received 7 times, R1 <0. In step 362, the CPU 11 calculates the following calculation formula.
R2 (or R3) = R2 (or R3) -15
R2 indicates the level of damage that the left wing 62 can withstand. In the present embodiment, the initial value is 60. Similarly, R3 indicates the amount of damage that the right wing 63 can withstand, and the initial value is 60. In this step, choose left and right randomly to increase the damage of the chosen wing. From the calculation formula, when the left wing 62 or the right wing 63 is damaged, R2 or R3 is decremented by 15, for example, when receiving damage four times, R2 (or R3) = 0.

In step 363, the CPU 11 determines whether another object has hit the upper portion of the main body 61 of the player object 60. If another object hits the upper part of the main body 61, the process proceeds to step 364.
In step 364, the CPU 11 determines whether or not R1 ≦ 0. In other words, it is determined whether or not the damage of the player object 60 is such that play can be continued. If R1 ≦ 0 is not satisfied, the process proceeds to step 365.
In step 365, the CPU 11 registers the main body 61 in the display list. The main body 61 is an object at the center of the player object 60.
In step 366, the CPU 11 determines whether or not R2 and R3 ≦ 0. In other words, it is determined whether the damage to the left wing 62 is such that the left wing can survive and the damage to the right wing 63 is such that the right wing can survive. If R2 and R3 ≦ 0, the process proceeds to step 367.
In step 367, the CPU 11 determines whether or not R2 ≦ 0. In other words, it is determined whether or not the damage to the left wing 62 is sufficient to survive the left wing. If R2 ≦ 0 is not satisfied, the process proceeds to step 368.
In step 368, the CPU 11 determines whether or not R3 ≦ 0. In other words, it is determined whether or not the damage to the right wing 62 is sufficient to keep the right wing. If R3 ≦ 0 is not satisfied, the process proceeds to step 369.
In step 369, the CPU 11 registers the complete left wing object 60L and the complete left wing object 60L in the display list. As a result of this registration, the player object 60 as shown in FIG. 35 is displayed on the display 30. Next, the process returns to the original routine and proceeds to Step 8.

  On the other hand, if R2 and R3 ≦ 0 in step 366, the process proceeds to step 370. In step 370, the CPU 11 registers the left wing object 60L without the left wing 62 and the right wing object 60R without the right wing 63 in the display list. As a result of this registration, the player object 60 in which the left wing 62 and the right wing 63, which are part of the left wing and the right wing as shown in FIG. Next, the process returns to the original routine and proceeds to Step 8.

  On the other hand, if R2 ≦ 0 in step 367, the process proceeds to step 371. In step 371, the CPU 11 registers the left wing object 60L without the left wing 62 and the complete right wing object 60R in the display list. By this registration, the player object 60 having the normal right wing without the left wing 62 being a part of the left wing as shown in FIG. 41 is displayed on the display 30. Next, the process returns to the original routine and proceeds to Step 8.

  On the other hand, if R3 ≦ 0 in step 368, the process proceeds to step 372. In step 372, the CPU 11 registers the right wing object 60R without the right wing 63 and the complete left wing object 60L in the display list. As a result of this registration, the player object 60 having a normal left wing without the right wing 63 as a part of the right wing is displayed on the display 30, contrary to the player object 60 of FIG. 41. Next, the process returns to the original routine and proceeds to Step 8.

  On the other hand, if R1 ≦ 0 in step 364, the process proceeds to step 373. In step 373, the CPU 11 performs an explosion process for the player object 60. When this explosion process is executed, other processes are skipped over a plurality of frames, and a scene in which the player object 60 explodes is displayed on the display 30. Thereafter, the value in the register area 159R of the RAM 15 is decremented by one, and the process proceeds to step 17, and if the game is not over, the game is resumed from a predetermined place in the game space.

On the other hand, if no other object hits the upper part of the main body 61 in step 363, the process proceeds to step 374.
In step 374, the CPU 11 performs a process for moving the player object 60 upward for a plurality of frames. By performing this process, it is possible to make an expression in which the lower part of the player object 60 collides with another object and is splashed. Next, the process proceeds to step 364.

On the other hand, if no other object hits the lower portion of the main body 61 in step 360, the process proceeds to step 375.
In step 375, the CPU 11 determines whether another object has hit the upper portion of the main body 61 of the player object 60. If another object hits the upper part of the main body 61, the process proceeds to step 376. In step 376, the CPU 11 performs the calculation of the following calculation formula.
R1 = R1-40
In step 377, the CPU 11 calculates the following calculation formula.
R2 (or R3) = R2 (or R3) -15
In step 378, the CPU 11 performs a process for moving the player object 60 downward for a plurality of frames. By performing this process, it is possible to achieve an expression in which the upper part of the player object 60 collides with another object and is repelled. Next, the process proceeds to step 364.

On the other hand, if it is determined in step 375 that no other object hits the upper portion of the main body 61, the process proceeds to step 380. In step 380, the CPU 11 determines whether or not other objects have hit the main body 61 and the right wing object 60R of the player object 60 and other objects have hit only the left wing object 60L. If another object hits only the left wing object 60L, the process proceeds to step 381. In step 381, the CPU 11 calculates the following calculation formula.
R2 = R2-20
Next, the process proceeds to step 365.

On the other hand, if no other object hits only the left wing object 60L in step 380, the process proceeds to step 382. In step 382, the CPU 11 determines whether or not other objects have hit the main body 61 and the left wing object 60L of the player object 60 and other objects have hit only the right wing object 60R. If another object hits only the right wing object 60R, the process proceeds to step 383.
In step 383, the CPU 11 calculates the following calculation formula.
R3 = R3-20
Next, the process proceeds to step 365.

  On the other hand, if no other object hits only the right wing object 60R in step 382, the process proceeds to step 365.

Next, another embodiment of the player object process will be shown. In this embodiment, the left wing object 60L and the right wing object 60R are not composed of two parts but are composed of three parts. Specifically, the left wing and the right wing are each composed of three parts, and are displayed on the display 30 so that they are not destroyed from the outer part due to damage. As shown in FIG. 35, the left wing object 60L and the right wing object 60R include a left wing 62, a left wing 64, a right wing 63, and a right wing 65. For example, when the left wing object 60L is slightly damaged (for example, 0 <R2 ≦ 30), when the left wing 62 disappears as shown in FIG. 41 and a lot of damage is received (for example, R2 ≦ 0), an image where the left wing 64 disappears is displayed on the display 30 as shown in FIG. The right wing 63 and the right wing 65 perform the same processing.
Further, the movement control of the player object 60 in steps 321 to 325 in FIG. 33 and in steps 332 to 336 in FIG. 36 is further changed by making the left and right wing objects 60L and right wing objects 60R have two levels respectively. The movement control of the rich player object 60 can be performed. Accordingly, the player can be given a sense of realism and achievement with respect to the game.

Next, FIG. 44 and FIG. 45 which are subroutine flowcharts of step 8 of FIG. 15 will be described in detail. In step 500, the CPU 11 determines whether or not the all range mode flag in the flag area 159F of the RAM 15 is set. If the all-range mode flag in the flag area 159F is not set, the process proceeds to step 501. In step 501, the CPU 11 calculates the following calculation formula.
Xc = (Xa-X0) * 0.8
As shown in FIG. 34, Xc is the X coordinate position of the camera that captures the player object 60. This camera is a virtual camera that determines an angle at which an object in the three-dimensional space is displayed on the display 30. X0 is a deviation value when the center of the X coordinate where the player object 60 is moving and the origin of the X coordinate in the three-dimensional space are displaced. This value is mainly used when the course is branched. In the present embodiment, X0 is set to 0.
In step 502, the CPU 11 calculates the following calculation formula.
Yc = (Ya-Y0) * 0.8
Yc is the Y coordinate position of the camera that captures the player object 60. Y0 is a shift value when the center of the Y coordinate where the player object 60 is moving is shifted from the origin of the Y coordinate in the three-dimensional space. This value is mainly used when the course is branched. In this embodiment, Y0 is set to 0.
In step 503, the CPU 11 determines whether or not the player has pressed the button switch Cl. If the player has not pressed the button switch Cl, the process proceeds to step 504.
In step 504, the CPU 11 determines whether or not the player has pressed the button switch 47Cd. If the player has not pressed the button switch 47Cd, the process proceeds to step 505.
In step 505, the CPU 11 calculates the following calculation formula.
Zc = Za + 400
Zc is the value of the Z coordinate of the camera that captures the player object 60. Therefore, Zc represents the Z coordinate of the position moved 400 from the position of the player object in the Z-axis direction. In step 506, the shooting direction of the camera is set to the scroll direction. As shown in FIG. 34, it is set in the −Z-axis direction.

On the other hand, if the player is pressing the button switch Cl in step 503, the process proceeds to step 507. In step 507, the CPU 11 calculates the following calculation formula.
Zc = (Za + abs (Zα)) + 400
abs () represents the absolute value of the numerical value in (). Zα is a value by which the camera moves away from the player object 60 when the player object 60 uses boost. In this way, when abs (Zα) is added from Zc, when the player object 60 is displayed on the display 30, it appears as if it flew rapidly in the depth direction of the screen. Next, the process proceeds to step 506. On the other hand, if the player is pressing the button switch 47Cd in step 504, the process proceeds to step 508. In step 508, the CPU 11 calculates the following calculation formula.
Zc = (Za-abs (Zβ)) + 400
Zβ is a value at which the camera approaches the player object 60 when the player object 60 uses the brake. Thus, when abs (Zβ) is subtracted from Zc, when the player object 60 is displayed on the display 30, it appears that it is rapidly pushed back toward the front of the screen. Next, the process proceeds to step 506.

On the other hand, if the all-range mode flag in the flag area 159F is set in step 500, the process proceeds to step 510 in FIG. In step 510, the CPU 11 determines whether or not the player has pressed the button switch Cl. If the player has not pressed the button switch Cl, the process proceeds to step 511.
In step 511, the CPU 11 determines whether or not the player has pressed the button switch 47Cd. If the player has not pressed the button switch 47Cd, the process proceeds to step 512. In step 512, the CPU 11 calculates the following calculation formula.
Xr = 2.0 * θx1 * cosθx2
Zr = 2.0 * θx1 * sinθx2
Xc = Xa + 400 * sin θx2-Xr
Zc = Za + 400 * cos θx2 + Zr
Yc = 0.8 * Ya
As shown in FIG. 37, 2.0 * θx1 is a value that causes the camera to shift in the (−X) axis direction from the rear of the player object 60 in the player space. Xr is a value obtained by converting the X coordinate value of the player space into the X coordinate value of the game space. Zr is a value obtained by converting the Z coordinate value of the player space into the Z coordinate value of the game space. Thus, the position of the camera can be moved in the direction in which the player object 60 is tilted in proportion to the tilt of the player object 60. When the example displayed on the display 30 is shown, as shown in FIG. 46, the player object 60 is displayed at the center in the left-right direction of the screen when flying straight. However, as shown in FIG. 47, when the player object 60 moves in the left direction, it is displayed on the right in the left-right direction of the screen. Further, when the player object 60 moves in the right direction, the player object 60 is displayed on the left in the left-right direction of the screen. Displaying in this way makes it easier to aim the enemy at the enemy, so that the player can easily aim at the enemy and enjoy the game comfortably. In step 513, as shown in FIG. 37, the CPU 11 sets the photographing direction of the camera to the -Z2 axis direction.

On the other hand, if the player is pressing the button switch Cl in step 510, the process proceeds to step 514. In step 514, the CPU 11 performs the calculation of the following calculation formula.
Xr = 2.0 * θx1 * cosθx2
Zr = 2.0 * θx1 * sinθx2
Xc = Xa + (400 + abs (Zα)) * sin θx2-Xr
Zc = Za + (400 + abs (Zα)) * cos θx2 + Zr
Yc = 0.8 * Ya
Next, the process proceeds to step 513.

On the other hand, if the player is pressing the button switch 47Cd in step 511, the process proceeds to step 515. In step 515, the CPU 11 performs the following calculation.
Xr = 2.0 * θx1 * cosθx2
Zr = 2.0 * θx1 * sinθx2
Xc = Xa + (400−abs (Zβ)) * sin θx2−Xr
Zc = Za + (400−abs (Zβ)) * cos θx2 + Zr
Yc = 0.8 * Ya
Next, the process proceeds to step 513.

  With reference to FIGS. 24-26, the operation | movement of the subroutine of a fellow object process is demonstrated. In step 201, it is determined whether or not there is a first companion. If there is a companion, processing of the first companion object is performed in step 202. Thereafter, in step 203, it is determined whether or not there is a second companion. If there is a companion, the second companion object is processed in step 204. Similarly, the determination of the presence / absence of the third friend and the processing of the third friend object are performed in steps 205 and 206. Here, the processing of the first to third fellow objects shown in steps 202, 204, and 206 is the same processing except that the kind of the fellow is different. Specifically, the subroutine processing (FIG. 25, FIG. 26) This is realized by steps 211 to 230).

  That is, in step 211, it is determined that the process is not a cancellation process, and in step 212, the movement process of any of the first to third friends is performed. In step 213, it is determined whether or not the enemy can be attacked, and if it is within the attackable distance, attack processing (calculation and display processing such as beam bullet emission) is performed on the enemy object in step 214. . In step 215, it is determined whether any of the fellows are chased by the enemy, and if it is determined that they are being chased, it is determined in step 216 whether the enemy is within a possible attack distance from the enemy. When the enemy is within an attackable distance, a process for displaying the speech 5 (for example, “help me”) is performed in step 217, and a process for outputting the speech of the speech 5 is performed in step 218. If it is determined in step 215 and / or 216 that they are different (No), it is determined in step 219 whether any fellow object is helped by the player object. If it is determined that it has been helped, a process for displaying the speech 6 (for example, “Help”) is performed in step 220, and a process for outputting the speech of the speech 6 is performed in step 221.

  In step 222, a hit determination when the friend receives an attack from the enemy (for example, determination of whether or not the friend hit the friend by an attack in step 254 described later) is performed. Then, in step 223, it is determined whether or not an enemy bullet has been hit. If it hits, in step 224, processing for reducing the damage of the fellow (subtraction of the value of the register R4) is performed. In step 225, it is determined whether or not the amount that can withstand the damage to the register R4 is 100 or less. If so, the process proceeds to step 229; In step 226, a message is displayed in which a friend who has received a certain amount of damage stops fighting and returns to the base, and the voice output process is performed in step 227. In step 228, it is determined whether or not the battle cancellation process is finished. If not finished, a process for registering the fellow object being processed in the display list is performed in step 229, and if finished, the fellow flag F1 is turned off. After returning to the main routine.

  With reference to FIG. 27, the operation of the subroutine of enemy object processing (step 10) will be described. In step 241, 1 is set in the register R5 for temporarily storing the number of enemy objects. In step 242, it is determined that there is an enemy object based on the value of the register R5. In step 243, a subroutine (FIG. 28 to be described later) for processing the number of enemy objects is performed. Thereafter, in step 244, 1 is added to the register R5. In step 245, it is determined whether or not the processing for displaying all the enemy objects set by the program has been completed. If all the processing has not been completed, the process returns to the switch 242 and steps 242 to 245 are performed. The process is repeated.

Next, details of the processing of one enemy object will be described with reference to FIG. In step 251, it is determined that the enemy object explosion process is not in progress, and in step 252, the enemy object having the number stored in the register (E) is moved. In step 253, it is determined whether the player object or the fellow object is within the range of the range. If it is within the range, a process for making an attack on the player object or the fellow object existing in the range of the range is performed in step 254.
On the other hand, in step 255, a hit determination is made when an attack is made on the enemy object from the player object or the fellow object. In step 256, it is determined whether or not the beam bullet fired by the player object or the fellow object hits the enemy object. When a hit is detected, a process for reducing the damage amount of the enemy object hit in step 257 (subtract 1 from register R5) and a process for giving a score to the player (determined by the enemy who has defeated the value of register R10) The process of adding the obtained scores) is performed. In step 258, it is determined whether the damage amount is 0 or less than 0 (R5 ≦ 0). Otherwise (when R5> 0), the enemy object being processed is registered in the display list in step 261. Conversely, in the following cases (when R5 ≦ 0), in step 259, a process for causing the enemy object to explode and disappear is performed. If it is determined in step 260 that the explosion process has ended, the flag of the enemy object attacked by the player object is turned off in step 262, and then the process returns to the main routine.

Next, FIG. 48 shows a flowchart showing in detail the step 255 of the enemy object processing of FIG.
In a conventional game machine, the enemy hit detection range is fixed. Therefore, even if the player attacks the enemy, the enemy in the distance is too small, so the attack is not easy. For this reason, the game becomes unreasonably difficult and the player's motivation may be lost. On the other hand, in the enemy hit determination of the present application, the enemy object hit determination range is increased in proportion to the distance between the enemy object and the player object 60. Therefore, the player can hit the attack even if the enemy object is far away. Therefore, according to the present invention, it is possible to prevent the game from being unreasonably difficult, the player can play at an appropriate difficulty level, and the player can play the game more eagerly.

In step 600, the CPU 11
RAD = (sqrt ((OBJ2x-OBJ1x) ^ 2 + (OBJ2y-OBJ1y) ^ 2 + (OBJ2z-OBJ1z) ^ 2) / 50
Calculate RAD is a numerical value that increases in proportion to the distance between two objects to be hit. sqrt () is a function representing the square root in (). The symbol “^” is a symbol for multiplying the numerical value described previously by the numerical value described later. Therefore, ^ 2 represents the square. The symbol “/” indicates division. OBJ1 is an object to be hit and is an enemy object here. OBJ2 is an object approaching OBJ1, and here is an attack object such as a laser object emitted by the player object 60. In the case where OBJ2 is the player object 60, the fellow object, the stationary object, or the attack object launched by the fellow object, the same process as in FIG. 39 is performed.
In step 601, the CPU 11 determines whether or not RAD> 200. If RAD> 200, the process proceeds to step 602.
In step 602, the CPU 11 determines whether or not ABS (OBJ2x−OBJ1x) ≦ OBJ1r + RAD. If ABS (OBJ2x−OBJ1x) ≦ OBJ1r + RAD, the process proceeds to step 603.
In step 603, the CPU 11 determines whether or not ABS (OBJ2y−OBJ1y) ≦ OBJ1r + RAD. If ABS (OBJ2y−OBJ1y) ≦ OBJ1r + RAD, the process proceeds to step 604.
In step 604, the CPU 11 determines whether or not ABS (OBJ2z−OBJ1z) ≦ OBJ1r + RAD. If ABS (OBJ2z−OBJ1z) ≦ OBJ1r + RAD, the process proceeds to step 605.
In step 605, the CPU 11 determines that OBJ2 and OBJ1 have been hit, and sets a hit determination flag in the flag area of the RAM 15. Then return to the original routine.

On the other hand, if ABS (OBJ2x−OBJ1x) ≦ OBJ1r + RAD is not satisfied in step 602, the process returns to the original routine.
On the other hand, if ABS (OBJ2y−OBJ1y) ≦ OBJ1r + RAD is not satisfied in step 603, the process returns to the original routine.
On the other hand, if ABS (OBJ2z−OBJ1z) ≦ OBJ1r + RAD is not satisfied in step 604, the process returns to the original routine.

  On the other hand, if RAD> 200 in step 601, the process proceeds to step 606. In step 606, the CPU 11 calculates RAD = 200. The reason why the RAD is not allowed to exceed 200 in this way is to prevent the enemy object from being easily hit and judged even though the enemy object is extremely far from the player object 60. If no upper limit is set for RAD, an attack object released from the player object 60 will hit an enemy object that is too small to be discriminated on the screen, and the realism will be lost.

  With reference to FIG. 29, the operation of the subroutine of the still object processing (step 11) will be described. In step 271, 1 is set in the stationary object register (R9). In step 272, the stationary object specified by the register (R9) is registered in the display list. In step 273, 1 is added to the register R9. In step 274, it is determined whether or not the processing for displaying all the still objects of the number set by the program has been completed. If all the processing has not been completed, the process returns to the switch 272, and steps 272 to 274 are performed. The process is repeated. When all the processes are completed, the process returns to the main routine.

With reference to FIG. 30, the operation of the subroutine of the drawing process (step 12) will be described. In step 281, coordinate conversion processing is performed. In the coordinate conversion process, under the control of the RCP 12, coordinate data of a plurality of polygons of moving objects such as enemies, players, and friends, and stationary objects such as backgrounds stored in the image data area 154 of the RAM 15, This is done by converting to the viewpoint coordinates. Specifically, an operation for converting each polygon data constituting a plurality of moving objects and still objects from absolute coordinates to data of camera coordinates is performed so that an image viewed from the viewpoint of the camera is obtained. In step 282, drawing processing is performed in the frame memory. In this process, the color data determined based on the texture data is written for each dot in the image buffer area 152 on one triangular face constituting each object surrounded by the polygon coordinates after conversion into the camera coordinates. Is done by. At this time, based on the depth data for each polygon, the color data of nearby objects is written so that the objects in the near (near) area are preferentially displayed, and the corresponding color data is also written. The depth data to be written is written to the corresponding address in the Z buffer area 153. Then return to the main routine.
The operations in steps 281 and 282 are performed within a certain time for each frame, but are sequentially processed for each polygon constituting each of a plurality of objects to be displayed on one screen, and all of the images to be displayed on one screen are displayed. It is repeated until the processing of the object is completed.

  With reference to FIG. 31, the operation of the subroutine of the voice processing (step 13) will be described. In step 291, it is determined whether or not the voice flag is turned on. If it is determined that it is turned on, the audio data to be output is selected in step 292. In step 293, after the selected audio data is read out, the process returns to the main routine. Note that the voice data of the read message is digital-analog converted by the voice generation circuit 16 and output as voice.

As described above, according to the present invention, it is possible to obtain a video game system and a video game storage medium having an interface that allows a player to play at an appropriate difficulty level and allows the player to play the game more eagerly.

1 is an external view showing a configuration of a video game system according to an embodiment of the present invention. It is a block diagram of the video game system of one Example of this invention. 2 is a detailed circuit diagram of a controller control circuit 18. FIG. 2 is a block diagram of a controller 40. FIG. 3 is a memory map schematically showing the entire memory space of the external ROM 21. 3 is a memory map showing a part of the memory space of the external ROM 21 in detail. 2 is a memory map schematically showing the entire memory space of a RAM 15; 4 is a memory map showing a part of the memory space of the RAM 15 in detail. It is a figure which shows the course of an example of a game to which this invention is applied. It is a figure which shows the course selection screen of the game shown in FIG. It is the figure which showed the game area map for demonstrating the game content of an example to which this invention is applied. It is the figure which showed the message output content in the communication process with the friend in the game of FIG. 11 graphically. It is a figure which shows an example of the screen display of the message output expressed based on the communication process with the friend in the game of FIG. It is a figure which shows an example of the screen display of the battle | competition state with the boss character in the game of FIG. It is a main flowchart of the game processing of one Example of this invention. It is a subroutine flowchart which shows the detailed process of a course selection screen. It is a subroutine flowchart which shows the detailed process of mode switching. 4 is a flowchart for explaining data transfer between a controller control circuit 18 and a video game machine main body. It is an example of the message output process which helps progress of a game, Comprising: It is a subroutine flowchart of a communication process with a friend. It is an example of the message output process which helps progress of a game, Comprising: It is a subroutine flowchart of a communication process with a friend. It is an example of the message output process which helps progress of a game, Comprising: It is a subroutine flowchart of a communication process with a friend. It is another example of the message output process which helps progress of a game, Comprising: It is a subroutine flowchart of the supply process of a supply. It is another example of the message output process which helps progress of a game, Comprising: It is a subroutine flowchart of the supply process of a supply. It is a subroutine flowchart of fellow object processing. It is a subroutine flowchart of fellow object processing. It is a subroutine flowchart of fellow object processing. It is a subroutine flowchart of enemy object processing. FIG. 28 is a subroutine flowchart showing in detail the operation of some steps included in the enemy object processing of FIG. 27; It is a subroutine flowchart of a still object process. It is a subroutine flowchart of a drawing process. It is a subroutine flowchart of voice processing. It is a subroutine flowchart of a player object process. It is a subroutine flowchart of a player object process. It is an X (-Z) coordinate of the three-dimensional space in the one-way scroll mode. 2 is an external view of a player object 60. FIG. It is a subroutine flowchart of a player object process. It is an X (−Z) coordinate of the three-dimensional space in the all range mode. It is a subroutine flowchart of a player object process. It is a subroutine flowchart of a hit determination process. It is an external view of the player object 60 from which a part of both wings was lost. It is an external view of the player object 60 from which part of the left wing has disappeared. It is a subroutine flowchart of a player object process. It is an external view of the player object 60 in which a part of the left wing is larger. It is a subroutine flowchart of a camera process. It is a subroutine flowchart of a camera process. FIG. 4 is a diagram illustrating an example of a screen display of a player object 60. FIG. 10 is a diagram showing another example of a screen display of the player object 60. It is a subroutine flowchart of an enemy object hit determination process.

Explanation of symbols

10 ... Video game machine 11 ... CPU (Central Processing Unit)
12 ... RCP
15 ... RAM (temporary storage memory)
18 ... Controller control circuit 20 ... ROM cartridge 21 ... ROM storing game program
30 ... Display device 31a ... Message display area 31c ... Score display area 40 ... Controller 44 ... Operation signal processing circuit 45 ... Joystick 50 ... RAM cartridge 51 ... RAM (writing Readable storage memory)
60 ... Player object

Claims (3)

In a video game system having an operation means operated by a player and executing a shooting game in which the player object moves and defeats an enemy object,
Player object movement control means for controlling movement of the player object in the virtual space in accordance with an operation of the operation means;
An enemy object movement control means for controlling the movement of the enemy object in the virtual space; and a first hit determination means for determining a hit between the attack object launched from the player object and the enemy object,
The first hit determination means adjusts the hit determination range between the attack object and the enemy object to be larger as the distance is longer according to the distance in the virtual space between the player object and the enemy object. And a video game system that makes the hit determination range constant when the distance is greater than a threshold .   The video game system according to claim 1, wherein the first hit determination unit increases the hit determination range in proportion to the distance. A video game storage medium storing a game program readable by a video game system having an operation means operated by a player and executing a shooting game in which a player object moves and defeats an enemy object. On the system computer,
A player object movement control step for controlling movement of the player object in a virtual space in accordance with an operation of the operation means;
Storing a game program for executing an enemy object movement control step for controlling movement of the enemy object in a virtual space, and a first hit determination step for determining a hit between the attack object emitted from the player object and the enemy object;
In the first hit determination step, the hit determination range between the attack object and the enemy object is increased as the distance increases, according to the distance in the virtual space between the player object and the enemy object. And a storage medium for video games that makes the hit determination range constant when the distance is greater than a threshold .

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