JP6262456B2 - Programs and computer systems - Google Patents

Description

  The present invention relates to a program for causing a computer to execute a game.

  So-called smartphone and tablet terminal games are popular. Among them, for example, tower defense (also called a defense game, a defense game, or the like) having simple operability and strategy like the game of Non-Patent Document 1 is one of popular game genres.

Ponos Co., Ltd., the game app “Nyanko Great War”, started distribution on March 29, 2010. Related URL: http://www.ponos.co.jp/pc/news/2010.html

  In a game such as tower defense that destroys computer-controlled enemy characters that appear intermittently, the appearance timing and order of appearance of enemy characters is generally determined for each game stage. Therefore, the player can capture the game stages one by one by learning the appearance order of the enemy characters and examining countermeasures.

  However, because the appearance timing and order of appearance of the enemy characters are determined, for example, when the player's attack power is overwhelming or when the enemy characters are destroyed together, There often occurs a state in which there is no enemy character temporarily (a state in which no game character exists). During this state, the player is not in possession of the hand, and there is a temporary but idle time (time for play). Thus, depending on the game, there is a game having a fast-forward function that accelerates the appearance of enemy characters.

  However, even with the fast-forward function, the player remains temporarily free. The first problem is that the appearance timing and the appearance order of enemy characters are determined. Temporary free time can be a negative factor in game play, such as a reduced sense of immersion in the game, or a stop in thinking.

  These challenges are not limited to tower defense games. For example, the same applies to a shooting game in which a player character moves on a game field and destroys an enemy character whose appearance timing, appearance position, and the like are determined.

  Also, the main operation of the tower defense game is generally all about which player character is placed where and when. For this reason, there are strong strategic and puzzle elements as the personality of the game, and it tends to be monotonous because it takes a long time to look at the game space. Therefore, if a tower defense game with a sense of speed and rich changes can be realized, a new tower defense game can be obtained.

  The present invention has been devised in view of the above-described problems.

The first invention for solving the above-described problem is as follows.
A program for causing a computer to execute a game for destroying and defending a computer-controlled enemy character that appears intermittently and advances toward a given destination (for example, the game program 501 in FIG. 6). And
Defeat situation determination means (for example, the game execution unit 202 in FIG. 6) for determining the defeat situation of the enemy character (for example, the defeat situation 507 in FIG. 3),
Appearance control means for controlling the appearance of the enemy character based on the destruction situation (for example, the enemy character control unit 222 in FIG. 6),
As a program for causing the computer to function.

As another invention,
A computer system (eg, electronic device 1500 of FIG. 6) for executing a game that destroys and defends a computer-controlled enemy character that appears intermittently and advances toward a given destination. ,
Destruction situation determination means for determining the destruction situation of the enemy character,
Appearance control means for controlling the appearance of the enemy character based on the defeat situation,
It is good also as comprising a computer system provided with.

  According to the first invention and the like, in the so-called defense game, the appearance of the enemy character is controlled based on the enemy character's defeat situation. Therefore, the appearance of the enemy character changes according to the defeat situation, so that the player can tackle the game continuously with a sense of speed and a good tempo every time the game is played. In addition, it is possible to reduce or eliminate the time when the player is not in possession during the game.

Regarding the control of the appearance of enemy characters, for example, as the second invention, in the first invention,
The appearance control means includes means (for example, an appearance control parameter change table 527 in FIG. 5 and an enemy character control unit 222 in FIG. 6) for controlling an interval at which the enemy character appears.
A program may be configured.

As a third invention, in the first or second invention,
The appearance control means includes means for controlling the number of appearance of the enemy characters (for example, the appearance control parameter change table 527 in FIG. 5 and the enemy character control unit 222 in FIG. 6).
A program may be configured.

Furthermore, as a fourth invention, in any one of the first to third inventions,
The appearance control means includes means for controlling the type of the enemy character to appear (for example, the appearance control parameter change table 527 in FIG. 5 and the enemy character control unit 222 in FIG. 6).
A program may be configured.

As a fifth invention, in any one of the first to fourth inventions,
The appearance control means includes means for controlling the appearance position of the enemy character (for example, the appearance control parameter change table 527 in FIG. 5 and the enemy character control unit 222 in FIG. 6).
A program may be configured.

  According to these second to fifth inventions, since there are various controls relating to the appearance of enemy characters, it may be necessary for the player to adopt a different strategy each time, even when playing the game on the same stage.

As a sixth invention, in any one of the first to fifth inventions,
A program for further causing the computer to function as advance speed control means (for example, the appearance control parameter change table 527 in FIG. 5 and the enemy character control unit 222 in FIG. 6) for controlling the advance speed based on the defeat situation. It may be configured.

  According to the sixth aspect, the speed of advance of the enemy character is controlled based on the destruction situation. For this reason, for example, in a situation where the player defeats the enemy character with good tempo and there are few or no enemy characters, the speed of advance of the enemy character can be increased. In this case, it is possible to revive the player as if the enemy character is losing the attack on the player side, and to increase the player's concentration and immersive feeling, thereby exciting the game.

Various techniques are also conceivable for determining the destruction situation.
For example, as a seventh invention, in any one of the first to sixth inventions,
The defeat situation determination means includes means for determining the number of remaining enemy characters (for example, the defeat situation 507 in FIG. 3 and the game execution unit 202 in FIG. 6) as the defeat situation.
A program may be configured.

  According to the seventh aspect, for example, it is possible to determine a situation such as whether there are few or many remaining enemy characters as a defeat situation.

As an eighth invention, in any one of the first to seventh inventions,
The defeat situation determination means includes a defeat speed determination means for determining a defeat speed based on the number of enemy characters defeated during a given unit time as the defeat situation.
A program may be configured.

  According to the eighth aspect of the present invention, it is possible to determine a situation as to whether the speed at which the enemy character is destroyed is fast or slow as the destruction situation.

As the ninth invention, in the eighth invention,
An event triggering means for triggering the event when the determination result of the destruction speed determination means satisfies a condition for triggering a given event;
First mode switching means for switching the attack mode of the own character to a special attack mode having higher attack power than the normal attack mode when the event is activated;
A program for causing the computer to function may be configured.

  According to the ninth aspect, an event can be activated according to the defeat speed. While the event is activated, the player's character can be switched to a mode with high attack power. Thereby, for example, when an enemy character's defeat speed is increased by placing a self-attack character having a high attack power or using a powerful attack item, a large-scale occurrence event of the enemy character is triggered. While the event is activated, the attack power of the own army character becomes high, so there is a chance to destroy enemy characters continuously and in large quantities. This synergistic effect can create a sense of speed.

As a tenth invention, in any one of the first to eighth inventions,
As the second mode switching means (for example, the mode switching unit 215 in FIG. 6) for switching the attack mode of the own army character between at least two modes of the normal attack mode and the special attack mode having higher attack power than the normal attack mode. Further functioning the computer;
The defeat situation determination means includes means for determining the current attack mode as the defeat situation (for example, the defeat situation 507 in FIG. 3 and the game execution unit 202 in FIG. 6).
A program may be configured.

  According to the tenth aspect of the present invention, it is possible to determine whether the attack mode of the own character is the special attack mode having a high attack power as the defeat situation. Therefore, for example, in the case of the special attack mode with high attack power, the appearance frequency suitable for the attack mode can be realized by increasing the appearance frequency of the enemy character.

In the tenth invention,
The second mode switching means switches the mode when a value of a given parameter counted according to the progress of the game satisfies a mode switching condition.
It is good also as comprising the program of 11th invention.

As a twelfth invention, in any one of the first to eighth inventions,
Switching condition detection means for detecting that the arrangement configuration of the own character arranged based on the player's instruction operation satisfies the condition for switching the attack mode of the own character to the special attack mode having higher attack power than the normal attack mode. ,
Third mode switching means for switching the attack mode of the own character to the special attack mode in response to detection by the switching condition detection means;
A program for further functioning the computer may be configured.

  According to the twelfth aspect, the attack mode of the own army character can be switched in accordance with the arrangement configuration of the own army character.

As a thirteenth invention, in any one of the first to eighth inventions,
A fourth mode switching means for switching an attack mode of each of the army characters between at least two modes of a normal attack mode and a special attack mode having a higher attack power than the normal attack mode;
Fifth mode switching for switching the second own character in the normal attack mode to the special attack mode, wherein the relationship with the first own character whose attack mode is the special attack mode satisfies a predetermined condition means,
A program for further functioning the computer may be configured.

  According to the thirteenth aspect, when the attack mode of the first self-army character is the special attack mode, the relationship between the first self-army character and the first self-army character satisfies a predetermined condition (for example, a distance condition). Your character switches to special attack mode. That is, mode switching is linked.

As a fourteenth invention, in any one of the first to thirteenth inventions,
In the game, the total number of appearances of the enemy character is determined,
A program for further functioning the computer may be configured as game score calculation means (for example, step S18 in FIG. 9) for calculating a game score using the time required to destroy all the enemy characters.

  According to the fourteenth aspect, the game score can be calculated using the time required to destroy all enemy characters.

As a fifteenth invention, in any one of the first to fourteenth inventions,
The defeat situation determination means determines the ease of defeating the remaining enemy character as the defeat situation by using at least the physical strength value or defense power of the remaining enemy character (for example, FIG. 3 defeat situation 507, game execution unit 202) of FIG.
A program may be configured.

  According to the fifteenth aspect, whether or not the remaining enemy character can be easily defeated using at least the physical strength value or the defense strength of the remaining enemy character is determined as the defeat situation. be able to.

FIG. 11 illustrates an example of a structure of an electronic device. The figure for demonstrating the outline | summary of a game. The figure for demonstrating an example of the data structure of a defeat situation, and a defeat situation. The figure which shows an example of a data structure of an appearance control standard parameter. The figure which shows an example of a data structure of an appearance control parameter change table. FIG. 11 is a block diagram illustrating an example of a functional configuration of an electronic device. The figure which shows an example of a data structure of possession own-army character data. The figure which shows an example of a data structure of enemy character initial setting data. The flowchart which shows the flow of the main processes.

  An embodiment will be described in which the present invention is applied to a game in which a computer-controlled enemy character that appears intermittently and advances toward a given purpose is defeated and defended. Specifically, an embodiment applied to a game called tower defense or defense game, which is one of the genres of game applications for smartphones, will be described.

FIG. 1 is a front view illustrating a configuration example of an electronic device 1500 according to the present embodiment.
The electronic device 1500 can take the form of, for example, a smartphone, a mobile phone, a portable game device, a stationary home game device, an arcade game device, a personal computer, a tablet computer, or a controller of a stationary home game device. It is a computer system.

  The electronic device 1500 in this embodiment is a computer classified as a so-called smartphone. On the front side of the apparatus, a direction input key 1502, a button switch 1504, a touch panel 1506 (a display device and a touch operation device) and a speaker 1510 are provided.

  The electronic device 1500 includes a control board 1550, a memory card reader 1542 that can read and write data from and to a memory card 1540 that is a computer-readable storage medium, and a rechargeable battery 1509. In addition, a power switch, a volume control button, and the like that are not illustrated can be provided as appropriate.

  The control board 1550 includes a CPU (Central Processing Unit) 1551, a GPU (Graphics Processing Unit), various microprocessors such as a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), various IC memories such as a VRAM, a RAM, and a ROM. 1552 is mounted as appropriate. The control board 1550 is equipped with a wireless communication module 1553 for wireless connection with a wireless base station such as a mobile phone or a wireless LAN included in the communication line N.

  The communication line N means a communication path capable of data communication. That is, the communication line N includes not only a dedicated line (dedicated cable) for direct connection, a LAN (Local Area Network) by Ethernet (registered trademark), but also a communication network such as a telephone communication network, a cable network, and the Internet. This means that the communication method may be wired or wireless.

  In addition, the control board 1550 includes a driver circuit for the touch panel 1506, a circuit that receives signals from input devices such as the direction input key 1502, the button switch 1504, and the touch panel 1506, an output amplifier circuit that outputs an audio signal to the speaker 1510, and a memory. A so-called I / F circuit (interface circuit) 1557 such as a signal input / output circuit for the card reader 1542 is mounted. Each element mounted on the control board 1550 is electrically connected via a bus circuit or the like, and is connected so as to be able to read / write data and transmit / receive signals.

  The control board 1550 can download and acquire game programs, data, and the like from a predetermined server system, or read them from the memory card 1540 and store them in the IC memory 1552, that is, install them. Then, the game program is started, and the game is executed by controlling each unit of the electronic device 1500 in accordance with an operation input using the direction input key 1502, the button switch 1504, and the touch panel 1506.

FIG. 2 is a diagram for explaining an outline of the game in the present embodiment.
On the game screen W1, an image of the entire game space of the game stage is displayed, and a path PT along which the enemy character travels toward the castle CA of the own army that is a defense base (defense point, defense point) is displayed. A game space is constructed. In FIG. 2, the route PT is set as a passage from the first appearance position AP1 and the second appearance position AP2 continuing from the outside of the screen to the castle CA. The position farther away from the castle CA is the first appearance position AP1, and the position closer to the castle CA is the second appearance position AP2. From these, about 5 to 15 enemy character groups E1 and E2 appear. The computer is controlled to advance on the route PT with the castle CA as the destination. When the enemy character reaches the castle CA and makes an attack that exceeds the durability of the castle CA, it is determined that the defensive base has fallen, and the player side (own) loses and the computer side (enemy) wins. . On the other hand, when the total number of enemy characters defined in the game stage is defeated, the player side (own army) wins and the computer side (enemy army) loses.

While the game is in progress, the player can touch the placement button BT to call up a list screen of possessed characters, select a player character to be additionally placed, and place it at any position around the route PT. However, since the arrangement of the own army character is in exchange for consuming the arrangement cost (see FIG. 7) set for the character from the time point TP, a character having an arrangement cost exceeding the current time point TP cannot be arranged. . Since the current time point TP increases as time elapses, when the time point TP is insufficient, the system waits for the time point TP to accumulate.
In addition, the player can rearrange the arranged own character at any position at any time. In addition, it is good also as providing an upper limit in the number of the self-service characters which can be arrange | positioned.

  The attack of the own army character is automatically performed by computer control. The battle between the own character and the enemy character is also automatic control. For this reason, the player decides which player's army character is placed at which position and when is the point of capture of the stage. In the battle, based on the values of the attack power and defense power of each other's own character / enemy character, the damage value received by each other is calculated and subtracted from the physical strength. The own army character or enemy character whose health value has become zero is deleted from the game space.

  Further, in FIG. 2, level-up gauges B <b> 1 to B <b> 4 whose index values increase in accordance with the number of enemy characters that have been defeated are accompanied with each of the own characters P <b> 1 to P <b> 4. When the level-up gauges B1 to B4 are full, the player can increase the level of the player's character by performing a touch operation. As the level goes up, attack power, defense power and physical strength increase. For this reason, where and where the character to be leveled up is placed is one of the strategies on the stage strategy.

  Note that the increase in the index value of the level-up gauge is not limited to the number of enemy characters that have been destroyed. For example, when an enemy character is defeated, an item drop such as a coin is generated, and the index value may be increased by collecting the item. The item may be collected automatically or may be collected by an operation input of the player.

  One of the features of this embodiment is the appearance control of enemy characters. In the game stage, the total number of appearances of enemy characters, which is a clear condition for the game stage, is determined. For example, in the example of FIG. The clear condition is that a total of 1000 enemy characters appear and destroy them all within a predetermined time.

  There are various types of enemy characters, and three types of enemy characters A to C may appear on the game stage of FIG. First, a group of about 5 to 15 bodies in which these three types of enemy characters are mixed is formed. Next, it is selected stochastically from which appearance position among the plurality of appearance positions. Then, the enemy characters of the organized group appear from the selected appearance position.

  Control target items of appearance control include (1) appearance time interval, (2) number of group members, (3) group member selection probability, (4) appearance position selection probability, and (5) movement speed. In addition, only one of these (1) to (5) may be set as a control target item, or any item may be combined as a control target item. Moreover, it is good also as a control object item including items other than these.

  (1) The appearance time interval is a time interval from the immediately preceding enemy character group to the next group appearing. (2) The number of group members is the number of enemy characters that constitute the group. (3) Group member selection probability is the probability of selecting the types of enemy characters that make up the group. (4) The appearance position selection probability is a probability of selecting one of a plurality of appearance positions. (5) The moving speed is the speed at which the group advances.

  A known technique can be appropriately used to determine how to use the set probability. For example, assume that the probability of a selection candidate is set to 0.7. A numerical value between 0 and 1.0 is randomly generated. If the numerical value is 0.7 or less, the selection candidate is selected. If it exceeds 0.7, the selection candidate is not selected. As described above, a known method can be arbitrarily used as the selection method using the set probability.

  For example, (6) parameter values such as physical strength and attack power, (7) event activation, and the like may be included as items other than the control target items of the appearance control of (1) to (5) described above. (7) The event is triggered by, for example, an overall damage event in which a volcanic eruption occurs and a predetermined damage value is uniformly given to enemy characters in the game space, or a large amount of enemy characters are temporarily generated (for example, physical strength It is conceivable to activate an event that causes 20 low enemy characters to occur continuously).

  Further, the defeat situation indicating the current game space situation is used as a reference for changing the control target item of the appearance control. In the present embodiment, there are three destruction situations: (a) the number of remaining enemy characters, (b) the attack mode, and (c) the degree of ease of sweeping. In addition, only one of these (a) to (c) may be set as the defeat situation, or any two may be combined as the defeat situation. Moreover, it is good also as a defeat situation including matters other than these.

  (A) The number of remaining enemy characters is the number of enemy characters existing (remaining) in the current game space. The number of enemy characters that can appear in the future is not included. (B) There are two attack modes: a normal attack mode and a special attack mode. When there are three or more self-combat characters whose combo number satisfies a predetermined threshold condition (for example, 10 or more), the attack mode is switched to the special attack mode. In the special attack mode, the attack power of each own character is multiplied by 1.5. The number of combos indicates the number of consecutive defeats of enemy characters, and the number of combos is reset when a predetermined time has elapsed since the last defeat timing. That is, the number of combos increases while the enemy character is being defeated continuously for a short period of time.

  (C) Ease of sweeping is an index indicating the ease of sweeping away (existing) enemy characters in the current game space, and is based on the total ability value of the remaining enemy characters and the total ability value of the own character. Is determined.

  For example, (d) the speed of defeat may be included as items other than the determination items of the defeat situation of (a) to (c) described above. (D) The defeat speed can be determined based on the number of enemy characters defeated during a given unit time (for example, the past 10 seconds). When the defeat speed is high (for example, 10 bodies / 10 seconds or more), it may be determined that the high-speed defeat situation exists. As an application example, for example, when it is determined that the demolition speed is in a high-speed defeat situation, the above-described (7) event may be activated to switch the attack mode of the own character to the special attack mode.

Now, specific processing contents of the appearance control will be described with reference to data stored in the electronic device 1500.
First, FIG. 3A is a diagram illustrating an example of a data configuration of a defeat situation 507 generated as needed while the electronic device 1500 is executing a game. The destruction situation 507 stores data on the number of remaining enemy characters, the attack mode, and the degree of ease of sweeping. The degree of ease of sweeping is determined as a level Le corresponding to the numerical range of the index value J after calculating the index value J based on the equation of FIG. The level Le is determined in the order of “big difficulty”, which is the most difficult level to be cleared, “small difficulty”, “medium”, “small easy”, and “large easy” which is the easiest to sweep. This level Le is the degree of easy cleaning.

  Appearance control is calculated and controlled using the appearance control parameter, and is realized by changing the value of the standard parameter according to the defeat situation 507. FIG. 4 is a diagram illustrating an example of a data configuration of the appearance control standard parameter 525. In the appearance control standard parameter 525, the values of the parameters of the appearance time interval, the number of group members, the group member selection probability, the appearance position selection probability, and the moving speed are determined in association with the progress of the game. The game progress is divided into three periods: early, middle, and final. These three periods can be determined based on the relationship between the total number of appearances of enemy characters, which is a game stage clear condition, and the total number of appearances up to now.

For example, in FIG. 4, the appearance time interval is set to be shorter as the game progresses. Further, the group member selection probability is determined so that the type-i enemy character is less likely to appear gradually and the type-c enemy character is likely to appear gradually as the game progresses. The appearance position selection probability is determined so that the possibility of an enemy character appearing from the second appearance position close to the castle CA increases as the game progresses.
It can be said that the appearance control parameters are changed according to the progress of the game.

  FIG. 5 is a diagram illustrating an example of a data configuration of the appearance control parameter change table 527. The appearance control parameter change table 527 defines how to change each parameter of the appearance time interval, the number of groups, the group member selection probability, the appearance position selection probability, and the movement speed in accordance with the defeat situation 507. . The original parameter value to be changed is a value determined by the appearance control standard parameter 525.

  For example, according to FIG. 5, when the number of remaining enemy characters is 5 or less, the appearance time interval for each remaining enemy character is shortened by -0.1 second, and the number of groups is increased by 1 for each remaining enemy character. It is prescribed as follows. When the attack mode is the special mode, it is determined that the selection probability of the first appearance position AP1 is slightly increased and the selection probability of the second appearance position AP2 is slightly decreased. Further, it is determined that the selection probability of the enemy character of the type “I” decreases and the selection probability of the enemy character of the type “C” increases as the ease of sweeping becomes an easy level.

  As described above, based on the appearance control standard parameter 525, the basic value of the appearance control parameter of the enemy character corresponding to the progress of the game is first determined, and then the value of the appearance control parameter is changed according to the defeat situation 507. The appearance control of the enemy character is performed according to the appearance control parameter at the time of control.

Next, the functional configuration of the electronic device 1500 will be described.
FIG. 6 is a functional block diagram illustrating an example of a functional configuration of the electronic device 1500 according to the present embodiment. Electronic device 1500 includes operation input unit 100, processing unit 200, sound output unit 350, image display unit 360, communication unit 370, and storage unit 500.

  The operation input unit 100 outputs an operation input signal to the processing unit 200 according to various operation inputs. For example, it can be realized by a keyboard, a switch, a touch panel, a mouse, a track pad, a dial, an acceleration sensor, or the like. In FIG. 1, the direction input key 1502, the button switch 1504, and the touch panel 1506 correspond to this.

  The processing unit 200 is realized by an electronic component such as a microprocessor such as a CPU or GPU, an ASIC, or an IC memory. The processing unit 200 performs data input / output control with each function unit, executes various arithmetic processes in accordance with predetermined programs and data, operation input signals from the operation input unit 100, and the like, and the electronic device 1500. To control the operation. The control board 1550 and the CPU 1551 in FIG.

  The processing unit 200 of this embodiment includes a game execution unit 202, a sound generation unit 250, an image generation unit 260, and a communication control unit 270.

  The game execution unit 202 executes main processing relating to the progress of the game of the present embodiment. For example, (1) a process of setting various objects in a virtual space to set a game space as a game stage, and (2) arranging various characters and controlling the movement of each character based on operation input or so-called AI control. (3) Characteristic attack hit judgment, reflection of damage according to the judgment, and accompanying experience value giving process (for example, raising the character level based on the experience value obtained by the character) , A change process for improving the capacity as the level increases), (4) a process for measuring elapsed time, (5) a process for recovering the time point TP as time elapses, A process of arranging a new own character in exchange for consumption is executed.

  The game execution unit 202 includes a self-character arrangement control unit 212, a self-character control unit 214, an enemy character control unit 216, and a time measuring unit 222.

  The own army character placement control unit 212 performs control to place the own army character selected by the player from the own army characters owned by the player at the player's designated position in the game space. In addition, an arrangement cost is determined for each of the own characters (see FIG. 7), and control is performed to consume the arrangement cost from the time point TP when arranging the own character. It is impossible to place and select a self character whose placement cost exceeds the time point TP.

  In addition, the own character control unit 214 controls the operation of the own character arranged in the game space. Specifically, for example, an AI control (computer control) is performed for performing an attack on an enemy character that has advanced within a predetermined attack range defined for the own character or defending an attack from the enemy character. .

  In addition, the own character control unit 214 includes a mode switching unit 215. The mode switching unit 215 manages the number of combos of each of the friendly characters placed in the game space, and there are a predetermined number or more (eg, three or more) of the friendly characters that satisfy a predetermined threshold condition (eg, 10 or more). Switch the attack mode to the special attack mode. The special attack mode is a mode indicating that the army is standing up and the attack power is increasing. In the normal attack mode, the set attack power is maintained, but in the special attack mode, the attack power of each of the own characters is increased by 1.5 times.

  The attack mode switching may be based on another standard. For example, when the number of own characters currently existing in the game space is less than a predetermined number (for example, 2 or less), the special attack mode is switched to for a certain time (for example, 20 seconds) according to the player's operation. It is good also as switching to a mode. As a player's operation, for example, a gauge such as a boost gauge whose index value increases over time is provided, and when the boost gauge becomes full, an operation is performed to switch to a special attack mode. It is good also as switching to special attack mode by the operation input which uses this item.

  Further, instead of switching the mode for the entire own army, the mode may be switched for each own character based on, for example, the number of combos.

  The enemy character control unit 216 performs the appearance control of the enemy character described above, and controls the movement of the appearing enemy character toward the castle CA at a moving speed determined by the appearance control. Then, for each enemy character, AI control is performed for an attack on the own character or castle CA located within a predetermined attack range, and an action for defending an attack from the own character.

  The timer 222 measures the elapsed time from the start of the game and displays a timer TM (see FIG. 2). A predetermined recovery value is added to the time point TP every time a given unit time elapses.

  The sound generation unit 250 is realized by, for example, a digital signal processor (DSP), a processor such as a voice synthesis IC, an audio codec that can reproduce a voice file, and the sound (BGM) related to the game based on the processing result by the game execution unit 202. And a sound signal of an operation sound generated in response to an operation input during play are generated and output to the sound output unit 350.

  The sound output unit 350 is realized by a device that outputs sound effects such as sound effects, BGM, telephone communication sound, and the like related to the game based on the sound signal input from the sound generation unit 250. In FIG. 1, the speaker 1510 corresponds to this.

  The image generating unit 260 is, for example, a processor such as a GPU (Graphics Processing Unit) or a digital signal processor (DSP), a program such as a video signal IC or a video codec, an IC memory for drawing frames such as a frame buffer, and for developing texture data. This is realized by an IC memory or the like used for the above.

  The image generation unit 260 of the present embodiment generates one game screen in one drawing cycle (corresponding to the time of one drawing frame. For example, 1/60 seconds), and sequentially generates image signals of the generated game screens as image display units. To 360. In the present embodiment, the generation of the game image that is the main body of the game screen includes a rendering process. Then, various information displays are combined with the rendered game image to complete the game screen.

  The image display unit 360 displays various game images based on the image signal input from the image generation unit 260. For example, it can be realized by an image display device such as a flat panel display such as liquid crystal or organic EL, a cathode ray tube (CRT), a projector, or a head mounted display. In the present embodiment, the touch panel 1506 in FIG. 1 corresponds to this.

  The communication control unit 270 executes communication connection for data communication and data processing related to data communication, and realizes data communication with an external device via the communication unit 370. And the communication part 370 relevant to this connects with the communication line N (FIG. 1), and implement | achieves communication. For example, it is realized by a wireless communication device, a modem, a TA (terminal adapter), a cable communication cable jack, a control circuit, and the like, and the wireless communication module 1553 of FIG. 1 corresponds to this.

  The storage unit 500 stores a program and various data for realizing various functions for causing the processing unit 200 to control the electronic device 1500 in an integrated manner. Further, it is used as a work area of the processing unit 200, and temporarily stores calculation results executed by the processing unit 200 according to various programs, input data input from the operation input unit 100, and the like. Such a function is realized by, for example, an IC memory such as a RAM or a ROM, a magnetic disk such as a hard disk, or an optical disk such as a CD-ROM or DVD. In FIG. 1, the IC memory 1552 and the memory card 1540 mounted on the control board 1550 correspond to this. A part of the storage unit 500 may be realized by an external storage that can be accessed via the communication line N so that data communication is possible.

The storage unit 500 of the present embodiment stores a system program and a game program 501 for realizing the basic functions of the electronic device 1500.
The game program 501 is a program for causing the processing unit 200 to function as the game execution unit 202, and the game processing shown in FIG.

The storage unit 500 also stores possession own character data 505, stage data 520, play data 540, a defeat situation 507, and an appearance control parameter 509.
In addition, the storage unit 500 appropriately stores data necessary for executing various processes, for example, counters and flags, temporary data calculated in the course of arithmetic processing, and the like.

  Owned army character data 505 is data of the own army character owned by the player. FIG. 7 shows an example of the possessed own army character data 505. In the possession own character data 505, attack power, defense power, physical strength (hit point HP), level addition rate, maximum level, and arrangement cost are stored in association with each type. The level addition rate is a coefficient for increasing the attack power, defense power, and physical strength each time the level increases. When the level is increased by one, the values of attack power, defense power and physical strength are multiplied to update these values. The maximum level is the upper limit level that the character can level up.

  Each time a new game stage is captured, the player's character may be newly added as a reward, or may be added by performing a predetermined billing process and purchasing. . Further, a lottery process may be performed when a predetermined condition is satisfied (for example, once a day, at the first game play), and a new character may be added when winning.

  The stage data 520 is setting data for each game stage. The game space configuration data 521 for configuring the game space of the game stage, the data 522 such as the durability of the castle CA as the defense base, and the game stage The enemy character initial setting data 523 (see FIG. 8), which is the data of the enemy character to appear in FIG. 8, the appearance control standard parameter 525 (see FIG. 4) and the appearance control parameter change table 527 (see FIG. 5) are stored. .

  The play data 540 stores various data associated with the game execution. For example, the stage number being played, the current score, the timer TM indicating the elapsed time from the start of the game play, the time point TP, various data regarding the own character, and various data regarding the enemy character are stored.

  The destruction situation 507 is data indicating the situation in the current game space being played, and stores the number of remaining enemy characters, the attack mode, and the ease of sweeping shown in FIG.

  The appearance control parameter 509 stores a value obtained by changing the value of the appearance control standard parameter 525 based on the defeat situation 507 and the appearance control parameter change table 527. If not changed, the value of the appearance control standard parameter 525 remains stored. The parameter items are the same as the appearance control standard parameter 525 and the appearance control parameter change table 527.

  Next, the flow of processing in the electronic device 1500 in the present embodiment will be described. The process flow described here is realized by the CPU 1551 executing the game program 501.

FIG. 9 is a flowchart for explaining the main processing flow in this embodiment.
When the processing unit 200 of the electronic device 1500 first selects a game stage according to the player's selection operation (step S2) and constructs a game space, the value of the appearance control standard parameter 525 is set in the appearance control parameter 509. The appearance control parameter 509 is initialized (step S4).

  Next, the game is started (step S6), and appearance control of enemy characters is started (step S8). That is, the processing unit 200 selects and arranges the own character according to the operation input of the player, organizes and controls the appearance of the enemy character group according to the appearance control parameter 509, and controls to advance to the castle CA as the defense base. Start. Then, when another character is positioned within the attack range of any one of the enemy character and the enemy character, the battle between the characters is computer-controlled. When there is a character whose physical strength is reduced by the battle and whose physical strength is zero, the character is deleted from the game space.

  In addition, each time the own character destroys an enemy character, the level up gauge value is increased by a given value, and when the level up gauge becomes full, the level is raised to the next level. Updates attack, defense, and health. Further, when the time interval between the current destruction of the enemy character and the previous destruction is within a predetermined time, 1 is added to the number of combos, and when the time exceeds the predetermined time, the number of combos is reset. Further, when an enemy character is defeated, an item drop such as a coin is generated, and the own character may collect and acquire the item, or an experience value may be added according to the defeat. Moreover, when the number of combos reaches a predetermined number, it is good also as giving a predetermined privilege item.

  While the game is in progress, the player's own character is rearranged according to the player's operation input, or a new player's character is selected and arranged in exchange for the consumption of the arrangement cost from the time point TP.

  Then, the processing unit 200 calculates and updates the destruction situation 507 at any time (step S10), and resets the appearance control parameter 509 when the destruction situation 507 changes (step S12: YES) (step S14). That is, referring to the appearance control parameter change table 527, the change amount or change degree of the parameter according to the defeat situation 507 is calculated, and the value obtained by changing the value of the appearance control standard parameter 525 is used as the appearance control parameter 509. Reset it. Whether or not the defeat situation 507 has changed is determined to have changed when even one of the values of the defeat situation 507 has changed.

  While the game end condition is not satisfied (step S16: NO), the processing unit 200 repeatedly executes steps S10 to S14. The game end condition is either when all the enemy characters defined in the game stage appear and destroy all the enemy characters, or when the stamina of the castle CA, which is the defense base, becomes zero. If the former, the game stage is determined to be cleared (success), and the score is calculated using the value of the timer TM at the timing when the game end condition is satisfied (step S18). It is preferable to calculate the score so that the lower the value of the timer TM (shorter time), the higher the score. If the latter game end condition is satisfied, the score is set to zero. Needless to say, the score calculation method may include other elements. For example, when the appearance time of the enemy character becomes shorter than a predetermined standard time by the above-described appearance control, the score may be calculated and added according to the shortened time.

  Then, the calculated score is displayed and the game ends. Of course, the calculated score may be used for the purchase of a new character or the purchase of an item, for example, by converting and adding to the game currency of the player. Moreover, it is good also as giving privileges, such as provision of an item and provision of experience value, according to a game result (for example, whether it is a score, game clear, etc.).

As described above, according to the present embodiment, in a game in which a computer controlled enemy character that appears intermittently is defeated and a stage is captured, the appearance of the enemy character is controlled based on the defeat situation of the enemy character. Therefore, since the appearance of the enemy character changes according to the defeat situation, even when playing the game on the same stage, a fresh taste can be felt every time the game is played. In addition, it is possible to reduce or eliminate the time when the player is not in possession during the game.
Since there are various variations in the appearance control of enemy characters, the player may need to adopt a different strategy each time even when playing the same stage, so the opportunity to think about the strategy may be lost. Absent.
Further, the speed of advance of the enemy character is controlled based on the defeat situation. For this reason, for example, in a situation where the player defeats the enemy character with good tempo and there are few or no enemy characters in the game space, the speed of advance of the enemy character can be increased. In this case, it is possible to revive the player as if the enemy character is losing the attack on the player side, and to increase the player's concentration and immersive feeling, thereby exciting the game.

  As the destruction situation, for example, it is determined whether the number of remaining enemy characters, whether the enemy's attack power is high (mode), whether the remaining enemy characters can be easily destroyed, etc. The And depending on the destruction situation, for example, the appearance frequency of enemy characters is high, the enemy characters with high attack power are likely to appear, the number of appearing enemy characters is large, or close to the defense base It often appears from the position.

  Although the embodiment to which the present invention is applied has been described above, the embodiment to which the present invention can be applied is not limited to the above-described embodiment, and components can be added, omitted, changed, and rearranged as appropriate.

(1)
For example, in the above-described embodiment, the description is centered on the appearance control of the enemy character, but various controls related to the own character may be added.

(1-1)
You may be able to equip items and special skills for your character. Examples of the item include a bomb item that destroys a certain range of enemy characters, a recovery item that recovers physical strength, and the like. Examples of the special skill include a skill for shortening the attack interval to increase the attack speed, and a skill for increasing the attack range.

The activation of the item or skill may be activated by an instruction operation by the player, or may be automatically activated according to the game progress status.
Moreover, it is good also as acquiring an item and skill according to the defeat situation. For example, it is possible to acquire and equip a predetermined item or a predetermined skill with a self-armed character whose number of defeats of enemy characters satisfies a predetermined threshold condition.

(1-2)
Further variations may be added to switching the attack mode of the own character.
For example, the special attack mode may include automatic activation of items (automatic use) and automatic activation of skills.

(1-3)
As a condition for switching to the special attack mode according to the defeat situation, a) when the defeat speed is determined to be a high-speed defeat situation, or b) the value of a given parameter counted according to the game progress ( (E.g., the number of enemy characters destroyed, the elapsed time, the number of self-armed characters, etc.) satisfying a predetermined numerical condition) c) (For example, when three or more bodies are arranged) or when a predetermined shape (for example, a star shape) is satisfied when the arrangement positions of the own army characters are connected.

(1-4)
Moreover, it is good also as switching attack mode by determining the switching conditions of attack mode about each own character. In that case, when a certain own army character is switched to the special attack mode, another own army character whose relationship with the own army character satisfies a predetermined condition may be switched to the special attack mode in a chained and interlocked manner. For example, when there is a self-character that is determined to be in a high-speed defeat situation, the self-character that has the same attribute as the self-character, or a self-character that meets the predetermined distance (for example, close) to the self-character. May be switched to the special attack mode. By doing so, it is possible to increase the number of characters in the special attack mode in a chained and interlocked manner, thereby exciting the game progress.

  In addition, appearance control such as increasing the number of appearance of enemy characters or shortening the appearance interval may be performed in accordance with the number of hostile characters in the special attack mode. Synergistic effects can double the power of battle progression.

(2)
Prior to the start of the game (stage), it is possible to preliminarily organize the own characters to be used. For example, the use upper limit number of the own army character is determined for each stage. The player organizes how many of his own characters are used and then enters the game (stage).

(3)
You may design each own character and enemy character as a virtual card. For example, a game (stage) is started after a card deck composed of a predetermined number of upper limit cards is formed with each player's own character as a virtual card.
Of course, not only characters but also items and skills may be designed as cards.

(4)
For example, the electronic device 1500 may be used as a dam terminal, and the server system may perform arithmetic processing. That is, the server system (computer system) stores the program and data stored in the storage unit 500 of FIG. 6 and performs the function of the game execution unit 202. The electronic device 1500 communicates with the server system and functions as a user interface terminal.

(5)
In the above-described embodiment, the tower defense game is described in which the player instructs the position of the player's own character. However, the present invention may be applied to a tower defense game in which only the appearance is instructed. For example, the present invention can also be applied to a tower defense game in which the position where the own character appears / arranges is determined in advance, the type of the appearing character is selected, and only the instructing operation is performed. In that case, you may control so that the own army character may advance automatically toward an enemy character by computer control. Specifically, in FIG. 2, the appearance position of the own army character is defined as the castle CA, and the appearing own army character may be controlled to automatically move by computer control along the path PT. . When the branch point of the route PT is reached, the destination may be determined randomly, or the destination may be determined by a player's instruction operation after pausing.

  DESCRIPTION OF SYMBOLS 1500 ... Electronic device, 200 ... Processing part, 202 ... Game execution part, 212 ... Self-arm character arrangement control part, 214 ... Self-arm character control part, 216 ... Enemy character control part, 501 ... Game program, 520 ... Stage data, 525 ... Appearance control standard parameter, 527 ... Appearance control parameter change table, 507 ... Destruction status

Claims (11)

A program for causing a computer to execute a game that destroys and defends a computer-controlled enemy character that appears intermittently and advances toward a given destination.
Destruction situation determination means for determining the destruction situation of the enemy character,
Appearance control means for controlling the appearance of the enemy character based on the defeat situation,
Means for switching at least two modes between the normal attack mode and the special attack mode having higher attack power than the normal attack mode, as the attack mode of each of the own army characters;
Means for switching the second own character in which the attack mode is the normal attack mode to the special attack mode, wherein the relationship with the first own character whose attack mode is the special attack mode satisfies a predetermined condition;
A program for causing the computer to function as The appearance control means includes means for controlling an interval at which the enemy character appears.
The program according to claim 1. The appearance control means includes means for controlling the number of appearance of the enemy characters.
The program according to claim 1 or 2. The appearance control means has means for controlling the type of the enemy character to appear,
The program as described in any one of Claims 1-3. The appearance control means includes means for controlling the appearance position of the enemy character.
The program as described in any one of Claims 1-4.   The program as described in any one of Claims 1-5 for making the said computer function further as an advance speed control means which controls the speed of the advance based on the said defeat situation. The defeat situation determination means includes means for determining the number of remaining enemy characters as the defeat situation.
The program as described in any one of Claims 1-6. The defeat situation determination means includes a defeat speed determination means for determining a defeat speed based on the number of enemy characters defeated during a given unit time as the defeat situation.
The program as described in any one of Claims 1-7. In the game, the total number of appearances of the enemy character is determined,
The program as described in any one of Claims 1-8 for making the said computer further function as a game score calculation means which calculates a game score using the time required for defeating all the said enemy characters. The defeat situation determination means includes an easiness determination means for determining the ease of defeating the remaining enemy character as the defeat situation by using at least the physical strength value or the defense strength of the remaining enemy character.
Program according to any one of claims 1-9. A computer system for executing a game that destroys and defends computer-controlled enemy characters that appear intermittently and advance toward a given destination,
Destruction situation determination means for determining the destruction situation of the enemy character,
Appearance control means for controlling the appearance of the enemy character based on the defeat situation,
Means for switching at least two modes of an attack mode of each of the own army characters, a normal attack mode and a special attack mode having a higher attack power than the normal attack mode;
Means for switching the second own character in the normal attack mode to the special attack mode, wherein the relationship with the first own character whose attack mode is the special attack mode satisfies a predetermined condition;
Computer system with

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