JP2003019352A - Game device, game control program and recording medium having the program recorded thereon - Google Patents

Abstract

PROBLEM TO BE SOLVED: To the enhance the strategical character of a game in a role playing game. SOLUTION: A control parameter 42 for showing the state of an enemy character during fighting in the control of a fighting scene 40 can be changed in an encountering scene 39 before plunging into the fighting scene. In the encountering scene 39, when a player controls the movement of a player character 43 to give some effect to the enemy character 41 to vary the value of the control parameter 42, the value is succeeded when plunging into the fighting scene and the fighting scene is controlled based on the value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game device, a game control program, and a recording medium having the program recorded therein, and more particularly to character action control of a role playing game.

[0002]

2. Description of the Related Art A role-playing game is a game in which a player character controlled by a player of the game develops a story while moving in a virtual space such as a plain, a cave, a town, or a room. The player character encounters a number of enemy characters while moving and can grow (level up) by battle and obtain hints for story development. In other words, the role playing game progresses by repeating switching between the normal scene and the battle scene.

There are several methods for switching from a normal scene to a battle scene. One is a method (so-called random encounter) in which the enemy character is not displayed in a normal scene and the scene is suddenly switched to the battle scene regardless of the player's intention. Since the graphic display requires the most effort in game production, this technique of not displaying the enemy character is adopted in many games as a preferable technique with less burden on the producer.

Another technique is to display an enemy character in a scene in which an enemy character is encountered among ordinary scenes (hereinafter referred to as an encounter scene), and is triggered by the player character having a conversation or contact with the enemy character. , Is a method of switching the scene to a battle scene. However, as described above, the more characters that are displayed and the more complicated the movement of the characters that are displayed, the more difficult it is to create a game. Therefore, this method is generally called a boss character that holds the key to story development. It was often adopted only for. Also, from the viewpoint of reducing the production load, the position of the enemy character displayed in the encounter scene is often fixed.

[0005]

However, in recent years, the efficiency of game development has improved, and in an encounter scene, it is possible to display a large number of enemy characters and move the enemy characters freely within a relatively wide range. It has become possible. Therefore, it has become possible to relatively easily perform scene control in which the enemy character wanders around a predetermined route or chases around the player character. In this case, the player attempts to battle the player character by observing where the enemy character has reached the predetermined position, or guides the enemy character by running away the player character to reach the predetermined position. By the way, you can deliberately catch it and enter the battle. That is, it is possible to perform some bargaining between the player character and the enemy character before entering the battle scene.

[0006] Therefore, an object of the present invention is to enhance the strategic nature of the game by making it possible to perform more advanced tactics before entering a battle scene, and further to succeed the result to the battle scene.

[0007]

The game device of the present invention comprises:
The player character and the enemy character each have control of the encounter scene in which the player character encounters the enemy character and control of the battle scene in which the player character encounters the enemy character encountered. A game device performed based on the value of a control parameter to be displayed, the player character and the enemy character being displayed in an encounter scene, and the action of the player character and the enemy character based on a control signal input from the input device. When it is detected that the enemy character is in an effect accepting state of receiving a predetermined effect during the control by the character control means for controlling the character control means, the value of the control parameter held by the enemy character is changed. Parameter value changing means to
When it is detected that the enemy character is in a battle start state in the process of control by the character control means, a scene switching means for switching the scene from the encounter scene to the battle scene is provided, and after the scene switching by the scene switching means, It is characterized in that the battle scene is controlled using the value of the control parameter changed by the parameter value changing means.

It is preferable that the character control means controls the action of each character so that the action of the enemy character is linked to the action of the player character. Moreover, it is preferable to define the battle start state as a state where the enemy character and the player character are in contact with each other.

The effect acceptance state can be defined, for example, as a state in which the enemy character is placed in a predetermined area in the encounter scene. Alternatively, it may be defined as a state in which the enemy character has performed a predetermined motion. Alternatively, it may be defined as a state in which the enemy character is placed in a predetermined area in the encounter scene and the player character has performed a predetermined motion. More specifically, for example, it can be defined as a state in which the player character presses the effect generation button when the enemy character is near the effect generation button arranged in the encounter scene.

Next, the game control program of the present invention is
The player character and the enemy character each have control of the encounter scene in which the player character encounters the enemy character and control of the battle scene in which the player character encounters the enemy character encountered. A game control program executed based on the value of a control parameter that
A character control process of displaying the character and the enemy character and controlling the actions of the player character and the enemy character based on a control signal input from the input device, and the enemy character exerts a predetermined effect in the process of the character control process. A parameter value changing process of changing the value of the control parameter held by the enemy character when it is detected that the receiving effect is received.
When it is detected that the enemy character is in the battle start state in the process of character control processing, the computer is caused to execute scene switching processing for switching the scene from the encounter scene to the battle scene, and after the scene switching processing, the parameter value is set. It is characterized in that the battle scene is controlled using the value of the control parameter changed in the change processing.

The character control process is preferably a process of controlling the action of each character so that the action of the enemy character is linked to the action of the player character.
Moreover, it is preferable to define the battle start state as a state where the enemy character and the player character are in contact with each other.

The effect acceptance state can be defined, for example, as a state in which the enemy character is placed in a predetermined area in the encounter scene. Alternatively, it may be defined as a state in which the enemy character has performed a predetermined motion. Alternatively, it may be defined as a state in which the enemy character is placed in a predetermined area in the encounter scene and the player character has performed a predetermined motion. More specifically, for example, it can be defined as a state in which the player character presses the effect generation button when the enemy character is near the effect generation button arranged in the encounter scene.

The recording medium of the present invention is a computer-readable recording medium recording the above-mentioned game control program.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION In showing the embodiments of the present invention, first, the difference between the present invention and the prior art will be clarified. FIG. 1 is a conceptual diagram showing the control target and control parameters used for control of a game control device or program of the present invention. The left side of the figure shows a normal scene (encounter scene with an enemy character) 39, and the right side of the figure shows a battle scene 40. As shown in the figure, the control target in the battle scene 40 is the enemy character 41.
And the player character 43, and their control is performed by the control parameter 42 held by the enemy character 41 and the control parameter 4 held by the player character 43.
4 is used. As the "control parameter",
For example, parameters such as a physical strength point indicating the state of the character, characteristic parameters such as “quickness” indicating the characteristic of the character, or parameters relating to weapons, armor, and items possessed by the character can be considered. In addition, all parameters that influence the behavior of the enemy character in the battle scene are included. For example, when the player instructs the player character 43 to perform an attack action, the player character 43 attacking the enemy character 41 is displayed on the screen, and the enemy character 4 is further displayed.
1 health point is reduced by the amount of damage taken by the attack. Alternatively, the battle scene is controlled such that the character having a larger quickness parameter value has a larger number of actions. Such a battle scene control method is a method that has been conventionally used.

The present invention is characterized in that the value of the control parameter 42 of the enemy character can be updated not only in the battle scene but also in the encounter scene 39, and the updated value is taken over in the battle scene. In the conventional random encounter, since the enemy character 41 was not displayed in the encounter scene 39, it was not considered to update the control parameter of the enemy character in the encounter scene 39. Further, conventionally, even when the enemy character is displayed, the encounter scene is only a scene where the player character encounters the enemy character, and the player character can damage the enemy character only in the battle scene. Was there. On the other hand, in the present invention, the player character 43 can bargain with the enemy character 41 even in an encounter scene, thereby directly or indirectly giving damage or other effects to the enemy character 41. Further, the effect given to the enemy character in the encounter scene is directly transferred to the battle scene in the form of the control parameter 42.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a diagram showing the game device 1 according to the present embodiment and peripheral devices connected to the game device 1. The game device 1 is connected to the display output device 7 by a cable 10. In the present embodiment, the display output device 7 is a home-use television including a display screen 8 for displaying a game screen and a speaker 9 for outputting the sound of the game.

Further, the game apparatus 1 is connected to a controller 11 via a cable 25, which inputs a control signal for the player to control the game. The controller 11 used in the present embodiment includes a direction button 14, a SELECT button 12, a START button 13, a Δ button 19, a ○ button 20, a □ button 21, and a × button.
Button 22, L1 button 23a, L2 button 23b, R
A 1 button 24a and an R2 button 24b are provided.

What kind of operation is possible with each button depends on what control the game control program assigns to the button in each scene. Therefore, although not necessarily uniform, the following operations can be generally performed.

The direction instruction button 14 is a button used for controlling the cursor position on the setting screen and for controlling the moving direction of the player character during the game. The upper part 15 of the directional button 14 is assigned to the upper part of the screen, the left part 16 is assigned to the left part of the screen, the lower part 17 is assigned to the lower part of the screen, and the right part 18 is assigned to the right part of the screen. You can control the cursor and the player character.

The SELECT button 12 is used when switching screens, for example, when calling a data save screen during a game. Also, the START button 13
Is mainly used for instructing to start or pause the game. △ button 19, ○ button 20, □ button 2
1, x button 22, L1 button 23a, L2 button 23
The b, R1 button 24a and R2 button 24b are mainly used for controlling the player character during the game. A wide variety of controls are realized by a combination operation of eight buttons.

Incidentally, as the controller 11 in recent years, controllers having various shapes such as those equipped with a joystick for indicating a direction and sheet-type controllers have been provided, but the present invention is realized regardless of the shape of the controller. It is possible.

In addition to the power button 2, the game device 1 has a D
VD (Digital Versatile Disk) and a CD-ROM, a disc tray storage unit 3 that stores the disc tray, an open button 4 for ejecting the disc tray from the disc tray storage unit 3, the progress of the game, the results, etc. are saved. Slot 5 into which a memory card is inserted, connection terminals for connecting various controllers (connection terminal 6a in the figure indicates a connection state, connection terminal 6b indicates a non-connection state), output devices such as images and sounds. A connection terminal for connection and a connection terminal for network connection (both not shown) are provided.

FIG. 3 is a block diagram showing the internal structure of the game apparatus 1. The game device 1 internally has a CPU
27, ROM 28, RAM 29, VRAM 30, voice synthesis unit 32, input / output control unit 33, input control unit 36, and communication control unit 37 are connected to the system bus 26, and signals can be exchanged via the system bus 26. Has been done.

When the game apparatus 1 is turned on, first the ROM
The internal circuit and the like are initialized by the initialization data stored in 28, and the game control program stored in the DVD 34 and the save data stored in the memory card 35 are transferred via the input / output control unit 33. RAM2
9 is read. On the other hand, a control signal input by the player from the input device 11 is sent to the CPU 2 via the input control unit 36.
7 provided. The CPU 27 sequentially processes the programs and data stored in the RAM 29 based on the control signal provided from the input control unit 36. The image output as a result of the processing by the CPU 27 is once V
It is stored in the RAM 30 and sent to the image display unit 8 such as a display screen of a television via the image control unit 31. Similarly, the voice output by the execution of the program is sent to the voice output unit 9 such as a speaker of the television via the voice synthesis unit 32. Further, when the game is advanced by a plurality of players connected on the network, the communication control unit 37
Data is exchanged with another game device connected to the network 38 via the.

Although the hardware configuration and functions of the game device according to the present embodiment have been described above, it will be apparent to those skilled in the art that the object of the present invention can be achieved by various similar configurations. All game devices are included in the scope of the present invention.

Next, an embodiment of the game control program and the recording medium of the present invention will be described. In the above description, the game control program in the present embodiment is the game control program stored in the DVD 34 or the like, and the recording medium such as the DVD 34 corresponds to the recording medium of the present invention. The game control program in the present embodiment is read into the game device 1 from the storage medium such as the DVD 34 via the input / output control unit 33, and is executed by the CPU 27 of the game device 1.

FIG. 4 is a flowchart showing an encounter scene control process and a battle scene control process executed by the game control program according to this embodiment. It should be noted that, of the normal scenes, a description of the control processing of scenes that do not lead to the battle with the enemy character, such as a puzzle solving scene, is omitted. Further, the battle scene control process is merely a typical example and is not limited to this.

The control process of the encounter scene is performed as follows. First, in step S101, a control signal input by the player from the input device is received. Next, in step S102, the movement of the character is determined, and the image of the character that moves in this way is output to the screen. The movement of the player character is determined based on the control signal input in step S101, that is, the player's instruction. For example, the player may use the direction button 14 shown in FIG.
When an instruction is given to move the screen upward, the player character on the screen moves upward. on the other hand,
In principle, the action of the enemy character is determined based on the control program. For example, if the enemy character is programmed to reciprocate in a linear range, the enemy character will reciprocate in that range. Alternatively, if the player character is programmed to move in association with the action of the player character, the player character moves so as to chase the player character, for example. In this case, the player can indirectly control the action of the enemy character.

By the character control processing in step S102, the player character and the enemy character move around in the encounter scene. At what point or at which position the battle starts, depends on the tactics between the player character and the enemy character. Generally, when the level of the enemy character is higher than that of the player character, it is not always possible to enter the battle in the situation that the player wants. For example, the battle is started by the enemy character in a form of being caught by the enemy character. It often happens. On the contrary, when the level of the player character is higher than that of the enemy character, the player can pre-read the movement of the enemy character and start the battle in an advantageous state for the player character.

As described above, the enemy character and the player character can be in various states in the encounter scene. The state detection process of step S103 is a process of allocating subsequent processes depending on the states of the enemy character and the player character. In step S103, it is detected that the enemy character has entered the effect acceptance state or the battle start state. In other cases, the process returns to step S101 and the processes of steps S101 and S102 are repeated.

When it is detected in step S103 that the enemy character is in the effect acceptance state, the value of the control parameter of the enemy character is changed in step S104.

Various definitions of "effect acceptance state" and "effect" can be considered. For example, when the enemy character enters the freezing room displayed in the encounter scene, a control method may be considered in which the quickness characteristic value of the enemy character is decreased by 1 to slow down the movement of the enemy character. In this case, the state in which the enemy character enters a predetermined area of the freezing room is the effect acceptance state, and the reduction in the quickness characteristic value is effective. The effects are not necessarily disadvantageous effects for the enemy character, and different effects may be applied depending on the characteristics of the enemy character. For example, when the enemy character enters the freezer, the quickness characteristic value is decreased by 1 if the enemy character is a character having a weak characteristic to cold, and the quickness characteristic value is 1 if the character has a strong characteristic to cold.
A control method of increasing the number is also conceivable.

Further, the case where the enemy character performs a predetermined motion can be defined as the effect acceptance state. For example,
It is assumed that the encounter scene is a rocky place where the scaffolding is unstable, and that a character who put his foot on a predetermined rock is supposed to fall. In this case, a control method is conceivable in which the physical strength points are reduced by 50 if the enemy character rolls with its foot on the rock.

Furthermore, the effect acceptance state may be defined by a combination of the actions of the enemy character and the player character. That is, the player character may give an effect such as damage to the enemy character by causing the enemy character to perform some action other than the start of battle. For example, there is a normal room in the encounter scene instead of the freezing room, and when the enemy character enters the room, if the player character presses the freezing switch, that room becomes a freezing room. To be

The values of the control parameters changed in step S104 are temporarily stored in the RAM 29 of FIG. After that, the processes of steps S101, S102, and S103 are repeated until the battle start state is detected or the effect acceptance state is detected again.

It is the most natural and preferable to define the battle start state as the contact between the player character and the enemy character. However, it goes without saying that other states may be defined as the battle start state. When the battle start state is detected, scene switching is executed in step S105, and the display screen switches from the encounter scene to the battle scene. At this point, the values of the control parameters stored in the RAM 29 in step S104 are directly carried over to the battle scene control process.

The control parameters may be inherited without fail, or may be inherited only when the battle start state is reached within a certain time after the control parameters are changed in step S104. May be. Further, the type and number of control parameters to be taken over are not limited to one. Moreover, the control parameter changed more than once may be inherited. For example, in step S103, the effect acceptance state is detected twice, the value of the control parameter is decreased by 30 in the first time, and the value is further increased by 3 in the second time.
When the number decreases by 0, the value reduced by 60 from the original value is used in the control of the battle scene.

The control process of the battle scene is basically the same as the conventional one, but when the initial values of the control parameters are set in step S201, the values stored in the RAM 29 are read, and the encounter scene control process is performed. Step S10
It is different from the conventional one in that the changes in 4 are carried over. Subsequent processing is the same as before, and first, step S
At 202, a control signal input from the input device by the player is accepted, the movement of the character is controlled at step S203, and the control parameters of the enemy character or the player character are updated at step S204 according to the attack or defense action. As described above, the processing from steps S202 to S204 is repeated until the battle ends. However, depending on the game, the battle scene may temporarily proceed by automatic control. In such a case, step S202 is omitted. If the enemy characters have been wiped out, that is, if the physical strength points of all the enemy characters have become zero, or if the player characters have been wiped out, step S20.
In 5, it is determined that the battle has ended, the battle scene control process ends, and the screen returns to the normal scene.

The processing of the game control program has been described above. Next, FIGS. 5A to 5D show examples of output screens by this program. Figure 5 (a) shows
It is a figure which shows an example of the encounter scene of the player character 43 and the enemy character 41. Player character 43
The player can move to the area on the left side of the scene as well as going up and down the stairs in the center of the scene by the player instructing the moving direction. This encounter scene is wider than the area displayed in FIG.
When 3 is moved to the front side of the screen, the screen is scrolled so that an area not displayed in FIG. 5A is displayed. FIG. 5A shows that the player character 43 moves around in such an encounter scene.
The state where the enemy character 41 is guided to the side of the explosive material 45 is shown. Alternatively, when the enemy character passes by the explosive material 45, it may be interpreted as a state in which the player character rushes to the side. The above corresponds to steps S101 and S102 of FIG.

Explosives 45 are arranged at various places in the encounter scene, and as shown in FIG. 5A, the player character points to the explosives 45 to explode them. That is, it is like a button (effect generation button) that produces no effect as it is, but produces an effect by the action of the player character. There are several types of explosive effects, which can be distinguished by the color of the explosive. Some explosives damage the characters around them by detonating them, while other explosives have the effect of restoring the physical strength of the characters around them.

FIG. 5 (b) is a diagram showing a state in which the explosive material 45 having a damaging effect explodes and the enemy character 41 is hit by a blast. Although the effect of the explosion extends only to a predetermined range around the explosive, the enemy character 41 is located near the explosive 45 as described above, and thus the enemy character 41 is directly affected by the explosion and receives the effect in step S103 of FIG. It becomes a state. As a result, the physical strength points of the enemy character 41 are reduced by 50, and the characteristic value representing the strength is also reduced by 1 point compared to the normal case. This is step S in FIG.
Corresponding to 104.

FIG. 5C is a diagram showing a state in which the enemy character 41 after being exposed to the blast rushes toward the player character and contacts the player character. Due to this contact, the encounter scene is switched to a battle scene as shown in FIG. This is step S105 in FIG.
Corresponding to. At this time, as described above, the enemy character 41
Has lower physical strength points and characteristic values of force than in the normal case. Therefore, the player character is
The enemy character 41 can be defeated by an attack simpler than that in a normal battle, that is, with less effort.

As described above, in the scene where the player character and the enemy character encounter each other, the player recognizes the timing of movement of the enemy character or actively guides the enemy character to effectively receive the enemy character. If the state is set, the battle can be advantageously developed in the battle scene. As a result, it becomes necessary to tactics with the enemy character in the encounter scene, and thus the interest of the game is doubled. Furthermore, the player can enjoy the pleasure of formulating a strategy from the stage of encountering the enemy character.

[0044]

The game device, the game control program and the recording medium of the present invention make it possible to change the control parameters of the enemy character used for controlling the battle scene even in the encounter scene. In other words, the value of the control parameter changed in the encounter scene is carried over to the control in the battle scene. Therefore, if the player character causes the player character to tactics with the enemy character in the encounter scene so that the control parameter that is disadvantageous to the enemy character is changed, the player can advantageously develop the battle in the subsequent battle scene. You can enjoy the fun of developing advanced strategies while looking at the flow from the encounter scene to the battle scene.

Particularly, if the enemy character is controlled so as to move in association with the player character in the encounter scene, the enemy character can be guided by the operation of the player character and driven to a position disadvantageous to the enemy character. Therefore, the fun of the bargaining in the encounter scene increases.

Also, switching from the encounter scene to the battle scene is
If the contact between the enemy character and the player character is used as an opportunity, a realistic game can be realized.

[Brief description of drawings]

FIG. 1 is a diagram for explaining the outline of the present invention.

FIG. 2 is a diagram showing an outline of a game device according to an embodiment of the present invention.

FIG. 3 is a diagram showing an internal structure of the game device shown in FIG.

FIG. 4 is a flowchart showing processing of a game control program according to an embodiment of the present invention.

FIG. 5 is a diagram showing an example of an output screen of a game control program.

[Explanation of symbols]

1 game device, 2 power button, 3 disc tray compartment, 4 open button, 5 slots,
6a, 6b connection terminal, 7 display output device, 8
Image display unit, 9 audio output unit, 10, 25 cable, 11 input device (controller), 12 to 1
4, 19 to 24b Various operation buttons, 26 system bus, 34 storage medium, 35 memory card, 41 enemy character, 43 player character, 45 explosive.

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2C001 AA11 AA14 BA01 BA02 BA05                       BB02 BB05 BB06 BB07 BC01                       CA01 CA06 CB01 CB06 CC02                       CC08

Claims (15)

[Claims] 1. An encounter scene in which a player character encounters an enemy character and a battle scene in which the player character encounters an enemy character encountered by the player character are controlled, and the battle scene is controlled by the player character. A game device played based on the values of control parameters held by the character and the enemy character, wherein the player character and the enemy character are displayed in the encounter scene, and based on a control signal input from an input device. The character control means for controlling the actions of the player character and the enemy character, and the enemy character when it is detected that the enemy character is in an effect accepting state of receiving a predetermined effect in the process of control by the character control means. A character that changes the value of the control parameter held by the character. And a meter value change means, when the enemy character in the course of the control is detected that a battle start state by said character control means,
A scene switching means for switching the scene from the encounter scene to the battle scene, and after the scene switching by the scene switching means, the battle scene is changed using the control parameter value changed by the parameter value changing means. A game device characterized by being controlled. 2. The game device according to claim 1, wherein the character control means controls the action of each character so that the action of the enemy character is linked to the action of the player character. 3. The game device according to claim 1, wherein the battle start state is a state in which the enemy character and the player character are in contact with each other. 4. The game device according to claim 1, wherein the effect acceptance state is a state in which the enemy character is arranged in a predetermined area in the encounter scene. 5. The game device according to claim 1, wherein the effect acceptance state is a state in which the enemy character has performed a predetermined motion. 6. The effect acceptance state is a state in which the enemy character is placed in a predetermined area in the encounter scene, and the player character has performed a predetermined action. The game device according to any one of 1 to 3. 7. The effect acceptance state is a state in which the player character presses the effect generation button when the enemy character is in the vicinity of the effect generation button arranged in the encounter scene. The game device according to any one of claims 1 to 3, wherein: 8. A control of an encounter scene in which a player character encounters an enemy character, a control of a battle scene in which the player character encounters an enemy character encountered, and a control of the battle scene. A game control program executed based on the values of control parameters held by the character and the enemy character respectively, wherein the player character and the enemy character are displayed in the encounter scene, and based on a control signal input from an input device. Character control processing for controlling the actions of the player character and the enemy character by means of the above-mentioned character, and when it is detected that the enemy character is in an effect accepting state of receiving a predetermined effect in the process of the character control processing, the enemy character is detected. That changes the value of the control parameter held by A meter value changing process and a scene changing process for changing a scene from the encounter scene to the battle scene when it is detected that the enemy character is in a battle start state in the process of the character control processing. A game control program, which is executed to control the battle scene using the control parameter value changed in the parameter value change processing after the scene change processing. 9. The game control according to claim 9, wherein the character control process is a process of controlling the action of each enemy character so that the action of the enemy character is linked to the action of the player character. program. 10. The game control program according to claim 8, wherein the battle start state is a state in which the enemy character and the player character are in contact with each other. 11. The game control program according to claim 8, wherein the effect acceptance state is a state in which the enemy character is arranged in a predetermined area in the encounter scene. 12. The game control program according to claim 8, wherein the effect acceptance state is a state in which the enemy character has performed a predetermined motion. 13. The effect acceptance state is a state in which the enemy character is placed in a predetermined area in the encounter scene, and the player character has performed a predetermined action. 11. The game control program according to any one of 8 to 10. 14. The effect acceptance state is a state in which the player character performs an operation of pressing the effect generation button when the enemy character is in the vicinity of the effect generation button arranged in the encounter scene. The game control program according to any one of claims 8 to 10, characterized in that. 15. A computer-readable recording medium in which the game control program according to claim 8 is recorded.