JP4172108B2 - GAME DEVICE AND ITS CONTROL METHOD - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a shooting game in which a player moves a sight to fire a bullet against an object. Device for executing and control thereof Regarding the method.
[0002]
[Prior art]
With the development of computer graphics technology in recent years, so-called 3D games using three-dimensional stereoscopic image display are gradually becoming common in game devices in amusement facilities and home video game devices. Yes.
[0003]
Shooting games are one of the most popular games. Also in this shooting game, a 3D shooting game using a three-dimensional stereoscopic image display has appeared.
[0004]
In the 3D shooting game, the direction of the character is operated by operating a joystick or the like, and a bullet is fired with the aim set on the front of the character aligned with the object. When manipulating the character, the movement of the character is manipulated and the direction of the character is also manipulated. As a result, it is possible to enjoy an advanced shooting game by freely operating the aim in any direction.
[0005]
[Problems to be solved by the invention]
The 3D shooting game has a high degree of freedom of operation by the player, can be advanced so much, and is very attractive to skilled players. However, since there is too much freedom of operation, it is very difficult for beginners to operate, and it is impossible to fire bullets as they think.
[0006]
For this reason, the difference between the skill level of the skilled person and the beginner becomes too large, resulting in almost no game, resulting in the excitement of both the skilled person and the beginner.
[0007]
An object of the present invention is to make a shooting game that can compensate for a lack of skill of a novice player and enjoy the game almost equally with a skilled player. Device for executing and control thereof It is to provide a method.
[0008]
[Means for Solving the Problems]
The above purpose is In a game apparatus having an input means for inputting an operation on a character by a player, an image generation means for generating a game image, an image display means for displaying a game image, and a control means, the input means includes the A first direction indicating means for instructing the moving direction of the character; a second direction indicating means for instructing the direction of the line of sight of the character; and an instruction to fire a bullet from a gun held by the character. An operating means for moving the character and changing the line of sight of the character based on instructions from the first direction indicating means and the second direction indicating means. Based on an instruction from the operation means and a step of controlling the character, a bullet is fired from the gun held by the character to the center of the aim of the gun. The step of controlling the bullet, wherein the control means determines whether the target is within a predetermined frame of the aim as a step of controlling the character; When the target is outside the predetermined frame, the step of moving the aim by a first amount with respect to the unit operation amount of the second direction indicating means, and when the object is within the predetermined frame of the aim, The step of moving the aim by a second amount smaller than the first amount with respect to the unit operation amount of the second direction indicating means, and the control means, as a step of controlling the bullet, Determining whether the object is within the predetermined frame of the aim, and when the object is within the predetermined frame of the aim, based on the position, moving direction and / or moving speed of the object Of the bullet Game device comprising the step of correcting the elevation angle, with corrected firing angle to perform the steps of firing the bullet Achieved by:
[0012]
DETAILED DESCRIPTION OF THE INVENTION
A game apparatus according to an embodiment of the present invention will be described with reference to FIGS.
[0013]
(Configuration of game device)
The configuration of the game apparatus according to the present embodiment will be described with reference to FIGS. FIG. 1 is a block diagram of the game apparatus according to the present embodiment, and FIG. 2 is a diagram illustrating an operation panel of the game apparatus according to the present embodiment.
[0014]
As shown in FIG. 1, the game device of the present embodiment includes a game processing board 10 that controls the game device, an input device 11 for inputting an operation by the player, and an output device that provides various notifications to the player. 12, a video monitor 13 for displaying a game image, and a speaker 14 for outputting game sound.
[0015]
The input device 11 is provided with a joystick 11a for instructing the moving direction of the character, a trackball 11b for instructing the line-of-sight direction of the character, and a jump button 11c for instructing the character to jump. . The joystick 11a is provided with two operation buttons 11d and 11e.
[0016]
As shown in FIG. 2, the input device 11 is arranged on the operation panel 11f of the game device in consideration of ease of operation by the player. A joystick 11a is provided on the left side of the operation panel 11f. An operation button 11d is provided on the top of the joystick 11a, and an operation button 11e is provided on the side of the head. In the shooting game, for example, the top operation button 11d is a weapon switching button, and the operation button 11e on the side of the head is a weapon bullet firing button. A trackball 11b is provided on the right side of the operation panel 11f, and a jump button 11c is provided from the center on the right side.
[0017]
As shown in FIG. 1, the output device 12 is provided with a display 12a and various lamps 12b for displaying a game.
[0018]
As shown in FIG. 1, the game processing board 10 is provided with a counter 100, a CPU 101 that controls the whole, a co-processor 108 that is an auxiliary arithmetic processing unit, and a ROM 102 that stores programs and the like. A RAM 103 is provided as a buffer memory. Further, a sound device 104 for generating sound and an AMP 105 for amplifying sound are provided, and a speaker 14 is connected to the AMP 105. An input / output interface 106 is provided, and the input device 11 and the output device 12 are connected.
[0019]
The game processing board 10 further includes a terrain data ROM 109 storing terrain data, a shape data ROM 111 storing shape data, that is, three-dimensional data such as characters, and texture data storing texture data. ROM 113 is provided.
[0020]
The game processing board 10 is further provided with a geometalizer 110 and a drawing device 112. The geometalizer 110 performs perspective transformation on the polygon shape data using a transformation matrix, and obtains data obtained by converting the coordinate system in the three-dimensional virtual space to the visual field coordinate system.
[0021]
The drawing device 112 pastes the texture on the converted shape data of the visual field coordinate system and outputs it to the texture map RAM 114 and also outputs it to the frame buffer 115. The scroll data arithmetic unit 107 calculates scroll screen data such as characters.
[0022]
The image composition device 116 synthesizes the scroll screen data including the character information from the scroll data calculation device 107 and the polygon screen data from the frame buffer 115. The combined frame image data is converted into an analog signal by the D / A converter 117, and is output to the video monitor 13 and displayed as a game screen.
[0023]
(Outline of shooting game)
An outline of the shooting game of the present embodiment will be described with reference to FIGS. As shown in FIG. 3, the shooting game screen displays a landscape viewed from the main character. A part of the gun 20 held by the character is displayed on the screen, and a frame 22 indicating the aim of the gun 20 is displayed in the landscape.
[0024]
The character is operated by the joystick 11a and the trackball 11b. As shown in FIG. 4, the moving direction of the character is instructed by the joystick 11a. When the joystick 11a is tilted to the back, the character moves forward, when the joystick 11a is tilted forward, the character moves backward, when the joystick 11a is tilted to the left, the character runs to the left, and when the joystick 11a is tilted to the right, the character runs to the right.
[0025]
The direction of the character is instructed by the trackball 11b. As shown in FIG. 5, when the trackball 11b is turned to the back, the character turns up, the aim goes up, and the camera turns up. When the trackball 11b is rotated forward, the character turns downward, the aim is lowered, and the camera faces downward. When the trackball 11b is turned to the left, the character turns to the left and turns to the left, the aim is to the left, and the camera is to the left. When the trackball 11b is turned to the right, the character turns to the right and turns to the right, the aim is to the right, and the camera is to the right.
[0026]
The player operates the joystick 11a and the trackball 11b to operate the character while moving the character, and directs the character in a free direction. The direction in which the character is facing is the direction in which the gun 20 is facing, and an aiming frame 22 is displayed in front of it.
[0027]
When the operation button 11e is pressed to fire a bullet, the bullet flies toward the center of the aiming frame 22. If an object such as an enemy character is stopped, the object can be caught in the aiming frame 22 and shot there so that it can be applied to the object.
[0028]
When an object such as an enemy character is moving, aim at the point where the object is expected to be present when the bullet arrives, taking into account the moving direction, speed, distance, etc. of the object Need to fire bullets. The player's skill is to accurately predict the position of such an object and shoot. Also, when an enemy fires a bullet, it is also an important skill to move the character and make it move against the opponent player's prediction. Compete with such skills among players and enjoy a shooting game.
[0029]
(Beginner mode)
In the above-mentioned shooting game, the character can be freely moved and oriented using the joystick 11a and the trackball 11b, and sometimes the jump button 11c can be used to jump up the character. The degree is high and advanced operation is possible. However, since there is too much freedom of operation, it is very difficult for beginners to operate, and the character cannot be operated as desired.
[0030]
For this reason, in this embodiment, a beginner's mode, that is, a beginner's auto aiming mode is provided in order to compensate for a beginner's skill shortage and make it easier to hit a target.
[0031]
In the beginner's mode of the present embodiment, the following is performed so that it can be operated more easily.
[0032]
First, the aiming frame is enlarged. As shown in FIG. 6, a vertically long frame 24 is formed so as to be larger than the original aiming frame 22 and include the entire enemy character.
[0033]
Second, if there is an enemy character 26 that is within the aiming frame 24 when the bullet is fired, the firing angle is corrected so that it can be easily hit. This correction control will be described using the flowchart of FIG. 7 and the display screen example of FIG.
[0034]
First, assume that the player depresses the operation button 11e of the joystick 11a and pulls the trigger (step S10). Next, it is determined whether or not there is an enemy character in the field of view shown in FIG. 8 (step S11). If the enemy character is not in view, the bullet is fired toward the center of the aiming frame 24 as usual (step S16).
[0035]
When there are a plurality of enemy characters in the field of view, the enemy character closest to the center of the aiming frame 24 is set as the shooting target (step S12). If there is only one enemy character in view, that enemy character becomes the target. In the display screen example of FIG. 8, the enemy character 26 is the target.
[0036]
Next, it is determined whether or not the object is within the aiming frame 24 (step S13). If the object is not within the aiming frame 24, the bullet is fired toward the center of the aiming frame 24 as usual (step S16).
[0037]
When the object is within the aiming frame 24, the object's position, moving speed, moving direction, and its own position / bullet speed should hit the “predicted position of the object when the bullet arrives” An angle correction value is calculated (step S14). Subsequently, a bullet whose angle is corrected in the calculated direction is fired (step S15).
[0038]
This angle correction is correction that hits an enemy character if the state at the time when the player pulls the trigger does not change as it is. If the player is an expert player, the player himself / herself predicts that and then fires a bullet, but the game device automatically corrects it. Note that after the player pulls the trigger, if the moving enemy character stops moving or changes its direction of movement, the bullet will not hit the enemy character, and the enemy character will You can escape.
[0039]
Next, a specific example of angle correction calculation will be described. The XYZ coordinates of the enemy character's position are (px0, py0, pz0), the enemy character's XYZ speed is (vx, vy, vz), and the XYZ coordinates of their position are (px1, py1, pz1). Let v be the velocity of the bullet of the weapon, XYZ coordinates of the intersection of the bullet and the enemy character, and (px, py, pz), and t be the intersection time. It is assumed that the enemy character moves linearly from the position (px0, py0, pz0) in the (sx, sy, sz) direction.
[0040]
The formula of the intersection point and the straight line of the enemy character's direction of travel is
(Px−px0) / vx = (py−py0) / vy = (py−py0) / vy = t. Therefore, the following formula
px = px0 + (vx × t)
py = py0 + (vy × t)
pz = pz0 + (vz × t)
Is established.
[0041]
Also, the equation of intersection, own position, bullet speed is
√ ((px−px1) 2+ (py−py1) 2+ (pz−pz1) 2) = v × t
It is represented by
[0042]
When these equations are expanded by t, a quadratic equation for t is obtained, and the solution of this quadratic equation is
t = (− b ± √ (b2-4ac) / 2a
However, a = vx2 + vy2 + vz2
b = 2 (px0 × vx + py0 × vy + pz0 × vz−px1 × vx−py1 × vy−pz1 × vz)
c = px02 + py02 + pz02-2 (px0 × px1 + py0 × py1 + pz0 × pz1)
It becomes.
[0043]
The coordinates (px, py, pz) of the intersection are calculated from the intersection time t thus obtained. The bullet firing angle is calculated from the coordinates (px, py, pz) of the intersection and its own position (px1, py1, pz1).
[0044]
Note that when the enemy character is moving quickly or shooting an enemy at a short distance, the correction angle calculated above may be significantly different from the angle at which the player is facing and may become unnatural. If a bullet is fired at an angle corrected by calculation as it is, a bullet may be fired to the side or at a later time. Since this is unnatural, the firing angle is limited so that bullets can only be fired in front of you.
[0045]
Third, when the enemy character 26 as an object enters the aiming frame 24, the sensitivity of the trackball 11b is decreased. Thus, once an enemy is caught in the aiming frame 24, the enemy character 26 is not easily detached from the aiming frame 24 due to careless operation of the trackball 11b. It is desirable to reduce the sensitivity by about 5% to 90% compared to the sensitivity when the object is not contained in the aiming frame 24.
[0046]
The trackball sensitivity correction will be described with reference to the flowchart of FIG. First, it is determined whether there is an enemy character in the field of view (step S20). When the enemy character is not in view, the movement amount of the aim (character direction) according to the movement amount (rotation speed) of the trackball 11b is not changed as usual (step S24).
[0047]
When there are a plurality of enemy characters in the field of view, the enemy character closest to the center of the aiming frame 24 is set as the shooting target (step S21). If there is only one enemy character in view, that enemy character becomes the target. In the display screen example of FIG. 8, the enemy character 26 is the target.
[0048]
Next, it is determined whether or not the object is within the aiming frame 24 (step S22). If the object is not within the aiming frame 24, the amount of movement of the aim (character direction) according to the amount of movement (rotation speed) of the trackball 11b does not change as usual (step S24).
[0049]
If the object is within the aiming frame 24, the amount of movement of the aim (character direction) based on the amount of movement (number of rotations) of the trackball 11b is made smaller than normal (step S23).
[0050]
In this way, when the enemy character is in the aiming frame 24, the sensitivity of the trackball 11b is reduced so that it is not easily removed from the aiming frame 24 even if the trackball 11b is inadvertently operated. .
[0051]
As a method for detecting the operation amount of the trackball 11b, the rotational speed of the trackball 11b may be detected, or the rotational speed of the trackball 11b may be detected.
[0052]
Fourth, there is a restriction on the vertical viewing angle movement by the trackball 11b. If you move the character's viewing angle upward, you will see the sky, and if you move downward, you will see the ground. For beginners, there is little discomfort in moving the viewing angle from side to side, but there is a strong sense of incongruity in moving the viewing angle up and down. Moreover, there is little need to shoot toward the sky or shoot toward the ground. Therefore, restrictions are imposed on the vertical viewing angle movement. Specifically, it can be operated up to a range of ± 22.5 degrees with respect to the horizontal plane, but it should be prevented from visual movement beyond that. In the normal expert mode, the range relative to the horizontal plane is visually moved within a range of ± 45 degrees to ± 67.5 degrees.
[0053]
Fifth, the vertical viewing angle is forcibly set in the ground direction while the character is moving. As described above, the beginner has a sense of incongruity in moving up and down the viewing angle, but it is more uncomfortable to leave the up and down viewing angle as it is when moving. It is difficult to intuitively move while looking up or looking down. Therefore, when the character is moved by operating the joystick 11a, the vertical viewing angle is automatically reset so that the direction matches the inclination of the moving ground. In other words, the horizontal direction is on the horizontal ground, but the direction is adjusted to the slope angle on the slope. Thereby, it always faces in the direction along the moving ground at the time of movement, and the subsequent viewing angle operation can be easily performed.
[0054]
(Smoke image display by plate polygon)
Next, a smoke image display method using plate polygons will be described with reference to FIGS.
[0055]
In a 3D game drawn in real time, in order to express effects such as smoke, water, flames, and sparks, an expression method using a plurality of plate polygons in which textures are pasted on plate-like polygons is often used. This is because considering the performance of the hardware, the number of polygons per effect can be reduced, and the amount of data and the time required for drawing can be reduced, so that the hardware power can be saved.
[0056]
However, when expressing an effect that has been connected for a long time from any direction, such as rocket smoke, a small number of plate polygons do not appear to have smoke connected depending on the direction. For this reason, smoke is drawn using a large amount of board polygons or a polygon model using many polygons by using a lot of hardware power, or the hardware power is saved and a few board polygons are used to cut off smoke. There is no choice but to draw.
[0057]
The present embodiment provides a method for expressing smoke connected from any direction using a small number of plate polygons. As a result, it is possible to express smoke that is neatly connected from any direction while saving hardware power.
[0058]
FIG. 10 shows a plate polygon indicating a smoke object. As shown in FIG. 10A, the plate polygon 30 has a square outer shape, for example, and has a smoke texture 32 attached thereto. As shown in FIG. 10B, the plate polygon 30 is arranged in the direction indicated by the coordinate indicated by the global coordinate.
[0059]
A conventional smoke image display method will be described with reference to FIG. The conventional smoke image display method consists of three steps. In the first step, a position P on the trajectory of the bullet immediately before smoke is emitted and where smoke is displayed as an image is set (FIG. 11A). In the next second step, the center of the plate polygon 30 is set at the set position P where smoke is emitted (FIG. 11B). In the next third step, the plate polygon 30 is rotated so as to face the direction of the camera viewed by the player (FIG. 11 (c)).
[0060]
The smoke expressed by such a conventional method is as shown in FIG. When expressing the smoke of the high-speed rocket 40, the interval between the plate polygons 30 is widened, and as shown in FIG.
[0061]
A smoke image display method using plate polygons according to the present embodiment will be described with reference to FIG. The smoke image display method according to the present embodiment includes five steps. In the first step, a position P on the trajectory of the bullet immediately before smoke is generated and where smoke is displayed as an image is set (FIG. 12A). In the next second step, the center of the plate polygon 30 is set at the set position P where smoke is emitted (FIG. 12B).
[0062]
In the next third step, the plate polygon 30 is rotated to match the direction of the trajectory of the bullet and the direction of the Z axis of the plate polygon 30 (FIG. 12C).
In the next fourth step, a prismatic display virtual frame 34 terminated by plate-like end faces 34a and 34b is set by applying a scale proportional to the velocity of the bullet in the Z-axis direction of the plate polygon 30. (FIG. 12D).
[0063]
In the next fifth step, the plate polygon 30 is rotated so that the plate polygon 30 faces the direction of the camera, that is, the viewpoint in the prismatic display virtual frame 34 (FIG. 12E). . As a result, the plate polygon is expanded and contracted so as to be maximum with respect to the display direction.
[0064]
The smoke expressed by the image display method of the present embodiment is as shown in FIG. When expressing the smoke of the high-speed rocket 40, as shown in FIG. 13B, even if the interval between the plate polygons 30 is widened, the connected smoke is not cut off from any direction. Is displayed.
[0065]
As described above, according to the present embodiment, the polygons are calculated in real time using the plate polygons, arranged in the moving direction, and expanded and contracted so as to be maximized when viewed from the display direction. Even so, it is possible to display the movement trajectory of smoke or the like connected to nature.
[0066]
(How to continue the game)
Next, a method for ending the game will be described with reference to FIGS.
[0067]
In the conventional game continuation method, a continuation screen that displays “Continue” after the game is over is displayed for a certain period of time, and if a coin is inserted during that time, the game is continued, and no coin is inserted during that time. Sometimes it is a game over process. The player determines whether or not to continue the game while the continuable screen is displayed.
[0068]
In recent years, battle games have become popular, and among them, battle games in which several people participate have also appeared. After such a battle game is over, all players are willing to continue, but due to reasons such as not being ready for coins, only one player will not be able to put in coins, I was unable to participate in the subsequent games.
[0069]
On the other hand, when the player is ready, there is a demand for the player to restart the game as soon as possible by shortening the display of the continuable screen as much as possible.
[0070]
The game continuation end method according to the present embodiment is configured such that the display time of the continuable screen can be shortened or lengthened by a button operation of the player. The game continuation ending method of this embodiment will be described using the flowchart of FIG. 14 and the display screen example of FIG.
[0071]
When the game is over, through the display of the game over screen shown in FIG. 15A (step S30), a continuable screen is displayed as shown in FIG. 15B, and the continuation timer (not shown) is initialized. A value, for example, 10 seconds is set (step S31). The continuable screen, for example, displays “Continue...” And the remaining number of continuation timers, which is the display time of the continuable screen, is displayed in seconds. FIG. 15B shows that the continuable time is 10 seconds.
[0072]
Next, it is determined whether or not the operation button has been pressed (step S32). If the operation button is not pressed, it is determined whether or not 1 second has elapsed (step S33). If 1 second has elapsed, 1 second is subtracted from the continuation timer (step S34). If one second has not elapsed, the process returns to step S32.
[0073]
Next, it is determined whether or not the continuation timer has expired (step S35). If the continuation timer has expired, the game over process is immediately performed (step S36). If the continuation timer has not expired, it is determined whether or not there has been a continuation instruction such as coin insertion from the player (step S37). If a continuation instruction is given, a game continuation process is performed (step S38).
[0074]
If it is determined in step S32 that the operation button has been pressed, it is determined whether or not the operation button has been pressed repeatedly (step S39). When the operation button is repeatedly hit, 3 seconds are subtracted from the continuation timer (step S40), and a continuable display screen as shown in FIG. 15C is displayed, and the process proceeds to step S35.
[0075]
If the operation button has not been repeatedly hit, it is determined whether or not the operation button has been pressed for a predetermined time (step S41). If the operation button has not been pressed for a certain time, the process returns to step S32.
[0076]
When the operation button is kept pressed for a certain time, a predetermined number of seconds, for example, 10 seconds is added to the continuation timer (step S42), and the continuation possible screen shown in FIG.
[0077]
Subsequently, it is determined whether 1 second has elapsed (step S43). If 1 second has elapsed, 1 second is subtracted from the continuation timer (step S44). If one second has not elapsed, the process returns to step S42.
[0078]
Next, it is determined whether or not the continuation timer has expired (step S45). If the continuation timer has expired, the game over process is immediately performed (step S46). If the continuation timer has not expired, it is determined whether or not there has been a continuation instruction such as coin insertion from the player (step S47). If a continuation instruction is given, a game continuation process is performed (step S48).
[0079]
You may return to step S32, after adding 10 second to a continuation timer by step S42. However, in the present embodiment, the processing after step S43 is performed after step S42 without returning to step S32. When the processing returns to step S32, the display of the continuable screen can be extended without limitation by the operation of the player. As a result, a specific player may unjustly occupy the game machine, which is not desirable. Therefore, in the present embodiment, the limitation can be made that it can be postponed for 10 seconds only once.
[0080]
In the above embodiment, the continuous display time is shortened by continuously hitting the operation button, and the continuous display time is lengthened by continuously pressing the operation button. However, other operation modes may be used. In short, the continuous display time may be lengthened or shortened by operating the operation buttons in different operation modes.
[0081]
As described above, according to this embodiment, the continuation display time after the game over can be freely controlled by the player's operation even if the game is over. Even if you want to continue, but want to wait for the opponent's preparation, you can respond flexibly.
[0082]
The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above embodiment, the present invention is applied to a game machine installed in a game center or the like, but may be applied to a consumer game machine. Further, the program for realizing the game according to the above embodiment is provided by the ROM, but may be provided by other information storage media. The information storage medium may be an information storage medium such as a memory inside the game apparatus or an HDD in addition to a memory card supplied from the outside. Further, not only a rewritable information storage medium but also a non-rewritable information storage medium such as a CD-ROM may be used. Other information media may be used. The information medium here is a medium in which information is recorded by some physical means, and can cause an information processing apparatus such as a game apparatus to execute a predetermined function, for example, a game program. Is.
[0083]
Information media include, for example, CD-R, game cartridge, floppy disk, magnetic tape, magneto-optical disk, CD-ROM, DVD-ROM, DVD-RAM, ROM cartridge, RAM memory cartridge with battery backup, flash memory cartridge Including a non-volatile RAM cartridge. In addition, a communication medium such as a wired communication medium such as a telephone line and a wireless communication medium such as a microwave line is included. The Internet is also included in the communication medium here.
[0084]
In the above-described embodiment, the present invention is applied to a game device. However, the present invention can also be applied to control of a game or the like in another electronic device such as a personal computer.
[0085]
【The invention's effect】
As described above, according to the present invention, since various ideas have been made for game control in consideration of beginners, it is possible to compensate for the lack of skill of beginner players and enjoy the game almost equally with skilled players.
[Brief description of the drawings]
FIG. 1 is a block diagram of a game device according to an embodiment of the present invention.
FIG. 2 is a diagram showing an operation panel of the game device according to the embodiment of the present invention.
FIG. 3 is a view showing a screen for a skilled player in a shooting game according to an embodiment of the present invention;
FIG. 4 is an explanatory diagram of a method for operating a joystick in a shooting game according to an embodiment of the present invention.
FIG. 5 is an explanatory diagram of a trackball operating method in a shooting game according to an embodiment of the present invention.
FIG. 6 is a diagram illustrating a screen for a beginner of a shooting game according to an embodiment of the present invention.
FIG. 7 is a flowchart showing a method for correcting a bullet firing angle in a shooting game.
FIG. 8 is an explanatory diagram of a method of correcting a bullet firing angle in a shooting game.
FIG. 9 is a flowchart showing a trackball sensitivity correction method in a shooting game.
FIG. 10 is a diagram showing a plate polygon that is a smoke object;
FIG. 11 is an explanatory diagram of a conventional smoke image display method using plate polygons.
FIG. 12 is an explanatory diagram of a smoke image display method using plate polygons according to an embodiment of the present invention.
FIG. 13 is a diagram showing an image display example of rocket bullet smoke.
FIG. 14 is a flowchart showing a game continuation ending method according to an embodiment of the present invention.
FIG. 15 is a diagram showing a display screen in the game continuation ending method according to one embodiment of the present invention.
[Explanation of symbols]
10 ... Game processing board
100 ... Counter
101 ... CPU
102 ... ROM
103 ... RAM
104 ... Sound device
105 ... AMP
106: Input / output interface
107: Scroll data calculation device
108: Co-processor
109 ... Topographic data ROM
110 ... Geometallizer
111 ... Shape data ROM
112 ... Drawing device
113 ... Texture data ROM
114 ... Texture map RAM
115: Frame buffer
116: Image composition device
117 ... D / A converter
11 ... Input device
11a ... Joystick
11b ... Trackball
11c ... Jump button
11d, 11e ... operation buttons
11f ... Operation panel
12 ... Output device
12a ... Display
12b ... Various lamps
13. Video monitor
14 ... Speaker
20 ... Gun
22 ... Aiming frame (for experienced users)
24 ... Aiming frame (for beginners)
26 ... Enemy character
30 ... board polygon
32 ... Smoke texture
34 ... Virtual frame for display
40 ... Rocket

Claims (3)

In a method for controlling a game device, comprising: an input means for inputting an operation on a character by a player; an image generation means for generating a game image; an image display means for displaying a game image; and a control means.
The input means includes
First direction indicating means for indicating a moving direction of the character;
Second direction indicating means for indicating the line-of-sight direction of the character;
Operation means for instructing the firing of a bullet from a gun held by the character;
The control means is
Controlling the character to move the character and change the line of sight of the character based on instructions from the first direction instruction means and the second direction instruction means ;
Based on the instruction from the prior SL operation means, wherein the gun character is poised to fire a bullet at the center of the aiming of the gun, running and controlling the bullet,
The control means is
As a step of controlling the character,
Determining whether an object is within a predetermined frame of the aim;
Moving the aim by a first amount relative to a unit operation amount of the second direction indicating means when the object is outside the predetermined frame of the aim;
When the object is within a predetermined frame of the aim, the step of moving the aim by a second amount smaller than the first amount with respect to a unit operation amount of the second direction indicating means is performed. And
The control means is
As a step of controlling the bullet,
Determining whether an object is within a predetermined frame of the aim;
When the object is within a predetermined frame of the aim, correcting the firing angle of the bullet based on the position, moving direction and / or moving speed of the object;
Control method for a game device and executes a step of firing the bullets corrected fired angle. To cause a game device having an input means for inputting an operation to a character by a player, an image generation means for generating a game image, an image display means for displaying a game image, and a control means to execute a shooting game The program of
The input means includes
First direction indicating means for indicating a moving direction of the character;
Second direction indicating means for indicating the line-of-sight direction of the character;
Operation means for instructing the firing of a bullet from a gun held by the character;
In the control means,
Controlling the character to move the character and change the line of sight of the character based on instructions from the first direction instruction means and the second direction instruction means;
Performing a step of controlling the bullet, causing a bullet to be fired from the gun held by the character to the center of the aim of the gun based on an instruction by the operation means;
In the control means,
As a step of controlling the character,
Determining whether an object is within a predetermined frame of the aim;
Moving the aim by a first amount relative to a unit operation amount of the second direction indicating means when the object is outside the predetermined frame of the aim;
When the object is within a predetermined frame of the aim, the step of moving the aim by a second amount smaller than the first amount with respect to a unit operation amount of the second direction indicating means is performed. Let
In the control means,
As a step of controlling the bullet,
Determining whether an object is within a predetermined frame of the aim;
When the object is within a predetermined frame of the aim, correcting the firing angle of the bullet based on the position, moving direction and / or moving speed of the object;
A computer-readable recording medium storing a program for executing the step of firing the bullet at a corrected firing angle. In a game apparatus having an input means for inputting an operation to a character by a player, an image generation means for generating a game image, an image display means for displaying a game image, and a control means.
The input means includes
First direction indicating means for indicating a moving direction of the character;
Second direction indicating means for indicating the line-of-sight direction of the character;
Operation means for instructing the firing of a bullet from a gun held by the character;
The control means includes
Controlling the character to move the character and change the line of sight of the character based on instructions from the first direction instruction means and the second direction instruction means;
Performing the step of controlling the bullet, causing a bullet to be fired from the gun held by the character to the center of the aim of the gun based on an instruction by the operation means;
The control means includes
As a step of controlling the character,
Determining whether an object is within a predetermined frame of the aim;
Moving the aim by a first amount relative to a unit operation amount of the second direction indicating means when the object is outside the predetermined frame of the aim;
When the object is within a predetermined frame of the aim, the step of moving the aim by a second amount smaller than the first amount with respect to a unit operation amount of the second direction indicating means is performed. And
The control means includes
As a step of controlling the bullet,
Determining whether an object is within a predetermined frame of the aim;
When the object is within a predetermined frame of the aim, correcting the firing angle of the bullet based on the position, moving direction and / or moving speed of the object;
And a step of firing the bullet at the corrected firing angle.

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