JP2020092943A - Program and game device - Google Patents

Abstract

To provide a game device or the like that can enhance strategic property of a game.SOLUTION: A game device includes: a field forming unit for updating a game field in a virtual space by arranging or removing an object selected according to a player's input in/from the virtual space, from a plurality of types of objects; an appearance point setting unit for setting an appearance point of an opponent character in the virtual space, after a game is started; a travel route calculation unit for calculating a travel route from the appearance point to the target of the opponent character; a display control unit for displaying the travel route on a game screen; and a game control unit for moving the opponent character along the travel route and controlling a game in which the opponent character and a player character play the game. The field forming unit, according to the player's input, changes an arrangement position of the target object to be a target of the opponent character. The travel route calculation unit recalculates the travel route when the arrangement position of the target object is changed.SELECTED DRAWING: Figure 12

Description

The present invention relates to a program and a game device.

BACKGROUND ART Conventionally, there is known a game in which a computer-controlled enemy character, which appears intermittently and progresses toward a castle of its own army, which is a defense base, is destroyed and defended (for example, Patent Document 1).

JP, 2005-8966, A

In the game as described above, the player has no choice but to place the player character (own character) in the vicinity of the advancing route of the enemy character, which is poor in strategy.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a program and a game device capable of enhancing the strategic nature of a game.

(1) According to the present invention, a field forming unit for updating a game field in the virtual space by arranging or removing an object selected from a plurality of types of objects according to a player's input in the virtual space. After the start of the game using the game field, an appearance point setting unit that sets a position or area that is an appearance point of an enemy character in the virtual space according to the game field, and the enemy from the appearance point. A traveling route calculation unit that calculates the traveling route of the enemy character up to the target of the character, a display control unit that displays the traveling route on the game screen, and the progress of the enemy character from the appearance point toward the target. The field forming unit is arranged in the virtual space in response to a player's input, by causing the computer to function as a game control unit that controls the game in which the enemy character and the player character play a battle along the path. The present invention relates to a program, characterized in that an arrangement position of a target object as a target is changed, and the traveling route calculation unit recalculates the traveling route when the arrangement position of the target object is changed. The present invention also relates to a computer-readable information storage medium, which stores a program for causing a computer to function as each unit described above. The present invention also relates to a game device including the above-mentioned units.

According to the present invention, the appearance point of the enemy character changes according to the feel formed by the player arranging or removing the object, and further, by changing the position of the target object that is the target of the enemy character, Since the course of travel changes, the player can enjoy strategic game play such as devising the shape of the game field and the arrangement of target objects.

(2) Further, in the program, the information storage medium, and the game device according to the present invention, the field forming unit has an arrangement selected from a plurality of arrangement points preset on the game field, in accordance with an input by a player. The target object may be placed at a point.

According to the present invention, the player can enjoy strategic game play such as devising the shape of the game field while the placement position of the target object is limited.

(3) Further, in the program, the information storage medium, and the game device according to the present invention, the game control unit may start the advance of the enemy character after a lapse of a predetermined time after the appearance point is set.

According to the present invention, the player can change the progress path by changing the position of the target object before the enemy character starts to advance, and can enjoy strategic game play.

(4) Further, in the program, the information storage medium, and the game device according to the present invention, the traveling route calculation unit may be configured to perform, based on height information of the game field corresponding to the object arranged in the virtual space, The traveling route may be recalculated.

According to the present invention, the player can change the course of travel by devising the shape of the game field in the height direction, and can enjoy strategic game play.

(5) Further, in the program, the information storage medium, and the game device according to the present invention, the traveling route calculation unit may be configured to perform the traveling route based on an attribute of the enemy character and an attribute of the object arranged in the virtual space. May be recalculated.

According to the present invention, the player can enjoy strategic game play in which the objects are arranged in consideration of the attributes of the enemy character and the attributes of the objects.

(6) Further, in the program, the information storage medium, and the game device according to the present invention, the field forming unit is configured so that when the attribute of the enemy character and the attribute of the object arranged on the traveling path satisfy a predetermined condition. The object may be removed according to the attack of the enemy character on the object.

According to the present invention, the player can enjoy strategic game play in which the objects are arranged in consideration of the attributes of the enemy character and the attributes of the objects.

The figure which shows an example of the functional block diagram of the game device of this embodiment. The figure which simplifies and shows an example of a game field. The figure which shows the calculation result of the score in the state in the middle of calculating the advancing route. The figure which shows the example of calculation of a traveling path. The figure which shows the example which the traveling path after an update avoids an obstacle horizontally. The figure which shows the example which the advancing path after an update avoids an obstacle vertically. The figure which shows the example of an update of a progress route. The figure which shows the example of an update of a progress route. The figure which shows the example of arrangement|positioning of a player character. The figure which shows the example of arrangement|positioning of a player character. The figure which shows the example of arrangement|positioning of a player character. The flowchart which shows the flow of a process of the game device of this embodiment.

The present embodiment will be described below. The present embodiment described below does not unreasonably limit the content of the present invention described in the claims. In addition, not all of the configurations described in the present embodiment are necessary configuration requirements of the invention.

1. Configuration FIG. 1 shows an example of a functional block diagram of the game device according to the present embodiment. The game device according to the present embodiment may have a configuration in which some of the constituent elements (sections) shown in FIG. 1 are omitted.

The input unit 150 is a device for inputting (detecting) input information from the user, and outputs the input information (operation input) of the user to the processing unit 100. The function of the input unit 150 can be realized by an input device such as a touch panel, a touch pad, a mouse, direction keys and buttons, and a keyboard.

The storage unit 170 stores a program and various data for causing a computer to function as each unit of the processing unit 100, and also functions as a work area of the processing unit 100, and the function can be realized by a hard disk, a RAM, or the like.

The display unit 190 outputs the game image (game screen) generated by the processing unit 100, and its function can be realized by a touch panel that also functions as the input unit 150, a display such as an LCD or a CRT.

The sound output unit 192 outputs the sound generated by the processing unit 100, and its function can be realized by a speaker, headphones, or the like.

The communication unit 196 performs various controls for communicating with the server and other game devices, and the function thereof can be realized by hardware such as various processors or communication ASICs, programs, and the like.

Note that a program and various data for causing a computer to function as each unit of the processing unit 100 stored in the information storage medium included in the server or the storage unit are received via the network, and the received program or data is stored in the storage unit 170. May be stored in. A case where the terminal is made to function by receiving the program and various data in this way is also included in the scope of the present invention.

The processing unit 100 (processor) performs processing such as game processing, image generation processing, and sound generation processing based on input information from the input unit 150, a program, data received via the communication unit 196, and the like. The function of the processing unit 100 can be realized by hardware such as various processors (CPU, DSP, etc.), ASIC (gate array, etc.), or a program. The processing unit 100 includes a field forming unit 110, an appearance point setting unit 112, a traveling route calculation unit 114, a display control unit 116, a game control unit 118, an image generation unit 120, and a sound generation unit 130.

The field forming unit 110 arranges a plurality of types of objects in the virtual space based on the field information (arrangement position in the virtual space, objects, etc.) stored in the storage unit 170, forms an initial game field, and the player An object selected from a plurality of types of objects held in the game according to the input of the player is arranged in the virtual space, and an object selected from among the objects arranged in the virtual space according to the input of the player. The game field in the virtual space is updated by removing the object. This makes it possible to arbitrarily change the height of the game field in the virtual space by stacking or removing a plurality of objects in accordance with the player's input. In addition, the field forming unit 110 changes the arrangement position of the target object which is the target of the enemy character and is arranged in the virtual space, according to the input from the player. Further, the field forming unit 110 may arrange the target object at an arrangement point selected according to the player's input among a plurality of arrangement points set in advance on the game field. A plurality of field information for forming the game field may be stored, and the game field may be updated based on the field information selected according to the input by the player. Further, by downloading the field information from the server or another game device via the communication unit 196, a plurality of field information of the game field formed by the game creator or the game field formed by another player may be stored. Yes, the player can upload the field information of the game field he created to the server.

The appearance point setting unit 112 sets a position or a region that is an appearance point of the enemy character in the virtual space after the game that uses the game field is started, in accordance with the game field.

The traveling route calculation unit 114 calculates the traveling route of the enemy character from the appearance point to the target (target object) of the enemy character, and the display control unit 116 displays the traveling route calculated by the traveling route calculation unit 114 on the game screen. Control to be displayed on. In addition, the traveling route calculation unit 114 recalculates the traveling route when the placement position of the target object is changed, and the display control unit 116 performs control to redisplay the recalculated traveling route on the game screen. .. Further, the traveling route calculation unit 114 may recalculate the traveling route based on the height information of the game field corresponding to the object placed in the virtual space. In addition, the traveling route calculation unit 114 may recalculate the traveling route based on the attribute of the enemy character and the attribute of the object placed in the virtual space.

The game control unit 118 moves the enemy character from the appearance point toward the target along the traveling route, and controls the game in which the enemy character and the player character compete. For example, the game control unit 118 arranges the player character in the virtual space according to the input of the player, and controls the player character so that the arranged player character automatically attacks the enemy character traveling along the traveling route. .. Further, the game control unit 118 may start the advance of the enemy character after a predetermined time has elapsed since the appearance point was set.

Further, the field forming unit 110 removes the object from the game field in response to the enemy character's attack on the object when the attribute of the enemy character and the attribute of the object arranged on the traveling path satisfy a predetermined condition. You can

The image generation unit 120 performs drawing processing based on the results of various processing performed by the processing unit 100, thereby generating a game image (image including a game field in a virtual space, an enemy character, and a player character), It is output to the display unit 190. The image generation unit 120 generates an image (so-called three-dimensional image) viewed from a virtual camera (given viewpoint) in the virtual space (object space).

The sound generation unit 130 performs sound processing based on the results of various processes performed by the processing unit 100, generates a game sound such as BGM, a sound effect, or a sound, and outputs the game sound to the sound output unit 192.

2. Method of this Embodiment Next, the method of this embodiment will be described with reference to the drawings. The game device of this embodiment is configured to execute a game in which an enemy character that appears in a game field in a virtual space and progresses toward a target (target object) is repelled to protect the target object. ..

The player arranges or removes an object selected from multiple types of objects prepared in advance (such as blocks of soil and rock, blocks of wood and iron, parts made of combinations of wood and iron blocks) in the virtual space. By doing, it is possible to build a game field in the virtual space. For example, a player can create a land and update the game field by removing or newly arranging blocks of dirt and rocks that form the ground of the game field. By arranging and stacking blocks and parts (walls, etc.), you can build a facility (building) on the ground and update the game field.

Further, the player can place the target object at an arrangement point selected from a plurality of arrangement points set in advance on the game field, and the target object arranged at a certain arrangement point can be arranged at another arrangement point. It can be placed in (to change the placement position). It should be noted that at least one placement point is placed under an object (a block of soil or rock forming the ground) in advance, that is, in a state where it is not displayed on the game screen, and the player removes the object and places it. When the point is exposed, the target object may be placed at the placement point, or the placement point may be configured to be movable so that the placement position can be changed according to the player's input. The target object may be placed at the placement point when a predetermined condition for placing the target object at the placement point is satisfied.

When a predetermined condition is satisfied in the game (for example, the progress of the scenario reaches a predetermined value), a plurality of appearance points of the enemy character are set on the game field. The plurality of appearance points are set according to height information of the game field (presence or absence of an object at each point of the game field, information regarding the number of objects stacked at each point, and attribute of the object at each point). For example, a plurality of positions on a horizontal plane (XZ plane) that are apart from each other by a certain distance in a random direction from the arrangement point where the target object is arranged are determined, and the highest position among the plurality of determined positions (the value of the Y axis is Search for a point that is large and has a large number of stacked objects, and set an appearance point at that point. When the searched point overlaps with another appearance point, the appearance point is set again. Occurrence points may be set on the ground (blocks of dirt or rock), or on parts or facilities built on the ground.

When the appearance point is set, the path (the advancing path of the enemy character) from the appearance point to the target object (arrangement point where the target object is arranged) is calculated. The advancing path of the enemy character is calculated based on height information of the game field (presence or absence of an object at each point in the game field, information regarding the number of objects stacked at each point, and attribute of the object at each point). For example, an object (a part such as a wall, a facility) having a predetermined height in the game field is used as an obstacle, and a route that can move the shortest distance from the appearance point to the target object while avoiding the obstacle is calculated as the traveling route.

FIG. 2 is a diagram showing a simplified example of the game field. The horizontal plane of the game field GF is partitioned by a plurality of cells arranged in a grid (in the example shown in FIG. 2, cells arranged in 10 rows and 10 columns). The object forming the game field GF, the target object, the player character, and the enemy character are arranged in any square, and the appearance point and the arrangement point are also set in any square. In the example shown in FIG. 2, the appearance point AP is set in the 1st row and 2nd column, the placement point is set in the 8th row and 8th column, and the target object TO is placed at the placement point. In addition, an obstacle object is arranged in each square shown in black in the figure. In the example shown in FIG. 2, the appearance point AP is set to one square, but the appearance point may be set to an area made up of a plurality of continuous squares.

When calculating the advancing path of the enemy character from the appearance point AP to the target object TO, first, for each of the squares around the square (start point) in which the appearance point AP is arranged (excluding the square in which an obstacle is arranged). , A distance S from the start point (moving cost MC) and a distance (estimated cost DC) from a square (goal point) where the target object TO is arranged are calculated, and the score S is calculated as much as possible. A traveling path is calculated by repeatedly searching for a low cell, similarly calculating the score S for the cells around the cell, and searching for a cell having the lowest score S (the score S does not increase). FIG. 3 is a diagram showing a calculation result of the score S in a state where the traveling route is being calculated, and FIG. 4 is a diagram showing an example of calculating the traveling route PP.

In this way, when the appearance point AP is set, the traveling route PP is calculated, and the calculated traveling route PP is displayed on the game screen (the traveling route is superimposed on the game field displayed on the game screen. Is displayed). Further, after a predetermined time has elapsed since the appearance point AP was set, the advancing of the enemy character is started, a predetermined number of enemy characters appear intermittently from the appearance point AP, and the appearing enemy character faces the target object TO. It moves along the traveling route PP. Therefore, the player can confirm the advancing path PP of the enemy character before the enemy character starts to advance. It should be noted that the player displays the ghost display (translucent display) of the enemy character moving along the traveling path PP from the time the appearance point AP is set to the time when the enemy character starts to move, whereby the enemy character advances. It may be possible to know in advance how the route PP is proceeding.

When the player places an obstacle object on the traveling path PP, the traveling path PP is recalculated and changed (updated). The recalculation of the traveling path PP is performed based on the height information of the game field GF, the attributes of the objects forming the game field GF, and the attributes of the enemy character. For example, as shown in FIG. 5, when an object OB is placed on the traveling path PP, the attributes of the enemy character traveling on the traveling path PP and the object OB on the traveling path PP (a single object or stacked up) Based on the heights of a plurality of objects), it is determined whether or not the enemy character can jump over the object OB. A level is set as an attribute for the enemy character, and the higher the level set for the enemy character (for example, the level indicating the jumping power), the more the enemy character can jump over a higher object. Further, it is determined whether the enemy character can destroy the object OB based on the attribute of the enemy character and the attribute of the object OB. A level (for example, a level indicating strength or hardness) is set as an attribute also in the object OB, and the higher the level (for example, a level indicating attack power) set for the enemy character, the higher the level of the enemy character. Objects can be destroyed. For example, an object formed of iron blocks has a higher level than an object formed of wooden blocks. Further, the height (size in the Y-axis direction) in the virtual space is set stepwise as an attribute of the object OB.

Then, based on the attributes of the enemy character traveling on the traveling path PP and the object OB on the traveling path PP, the enemy character cannot jump over the object OB (cannot exceed the height of the object OB), Further, when it is determined that the object OB cannot be destroyed (the attribute of the enemy character and the attribute of the object OB do not satisfy a plurality of predetermined conditions), as shown in FIG. It is updated to a new traveling path PP′ that is avoided (detoured) in the horizontal direction. Further, when it is determined that the enemy character cannot destroy the object OB but can jump over it (the attributes of the enemy character and the attribute of the object OB satisfy the predetermined first condition), it is shown in FIG. As described above, the traveling path PP is updated to a new traveling path PP′ that avoids the object OB in the vertical direction. Further, when it is determined that the enemy character can destroy the object OB (the attribute of the enemy character and the attribute of the object OB satisfy the predetermined second condition), the object OB is an obstacle to the enemy character. It does not become a thing, and the traveling route PP is not updated. In this case, when the enemy character travels along the traveling path PP and reaches the object OB, the enemy character performs an action of destroying the object OB, and resumes traveling on the traveling path PP after the destruction.

FIG. 7 shows an example in which the traveling route PP is updated by the placement of the obstacle object. In the example shown in FIG. 7, since the object OB which the enemy character cannot jump over or destroy is arranged in the square at the 4th row and the 7th column on the traveling route PP, the traveling route PP bypasses the object OB. The travel route PP' has been updated. Note that the height information of the game field GF, the attribute of the object, and the attribute of the enemy character are taken into consideration when calculating the traveling path PP, also in the first calculation.

Further, when the player moves the target object TO arranged at the arrangement point and arranges it at another arrangement point (changes the arrangement position of the target object TO), the traveling path PP is recalculated and changed. In the example shown in FIG. 8, since the target object TO arranged at the arrangement point of the square at the 8th row and the 8th column has been moved to the arrangement point of the square at the 1st row and the 9th column, the target object after the movement from the appearance point AP. A new traveling route PP′ that can move to the TO at the shortest distance while avoiding obstacles is recalculated. Arrangement of obstacles and movement of the target object TO on the traveling path PP can be performed before or after the enemy character has started to proceed (while the enemy character is in progress).

In addition, the player can arrange a player character selected from a plurality of types of player characters owned by the player on the game field GF. The player character is a human-type or device-type character that autonomously attacks an enemy character. When an enemy character traveling on the traveling path PP approaches a player character arranged in the game field GF, the player character automatically attacks the enemy character according to a given algorithm. When the player character attacks the enemy character, the physical strength value of the enemy character decreases based on the attack power of the player character and the defense power of the enemy character, and when the physical strength value of the enemy character reaches a predetermined value (for example, 0), The enemy character is erased from the game field GF.

For example, as shown in FIG. 9, the player arranges the player character PC in a square near the traveling path PP to ambush and attack an enemy character traveling along the traveling path PP. Further, as shown in FIG. 10, the player arranges the object OB on the traveling path PP and changes the traveling path PP to a traveling path PP′ passing near the square on which the player character PC is arranged. The enemy character can be caused to proceed near the square where the player character PC is arranged. Further, as shown in FIG. 11, the player moves the target object TO to another placement point and changes the traveling route PP to a traveling route PP′ passing near the square where the player character PC is disposed. Thus, it is possible to cause the enemy character to proceed near the square where the player character PC is arranged. Alternatively, it is possible to change the traveling route and place the player character PC in a square near the changed traveling route while the enemy character is making a detour. It should be noted that the player character PC may be controlled so that the player character PC moves or attacks an enemy character in response to an input from the player.

When the enemy character traveling on the traveling path PP reaches the square in which the target object TO is arranged, the enemy character takes the target object TO and escapes. At this time, the return point of the enemy character is set in any square of the game field GF, the enemy character having the target object TO moves toward the return point, and when the enemy character reaches the return point, The game is over. The game may be over when the enemy character takes the target object TO. Further, the game may be over when the enemy character who has robbed the target object TO escapes toward the appearance point AP and the enemy character reaches the appearance point AP. In this case, when the enemy character robs the target object TO, a traveling path from the arrangement point where the target object TO was arranged to the appearance point AP is calculated, and the enemy character is moved along the calculated traveling path. Just do it. Also in this case, when an obstacle is placed on the traveling route, the traveling route is recalculated.

As described above, according to the present embodiment, the appearance point AP of the enemy character changes according to the game field GF formed by the player arranging or removing the object, and further, the position of the target object TO is changed or the course of travel is changed. By arranging an obstacle object on the PP, the advancing path PP of the enemy character is recalculated and changed. Therefore, the player determines the shape of the game field GF, the arrangement of the target object TO, and the arrangement of the objects. You can enjoy strategic gameplay such as devising. Further, according to the present embodiment, by limiting the position where the target object TO can be arranged to a plurality of preset arrangement points, the player can play the game while the arrangement position of the target object TO is limited. It is possible to enjoy strategic game play such as devising the shape of the field GF and the arrangement of objects. Further, according to this embodiment, the player can change the traveling path PP by changing the position of the target object TO or arranging an obstacle on the traveling path PP before the advancing of the enemy character starts. Therefore, it is possible to enjoy strategic game play with a certain amount of time. Further, according to the present embodiment, the traveling path PP is recalculated based on the height information of the game field GF, the attribute of the object, and the attribute of the enemy character, so that the player can move in the height direction of the game field GF. It is possible to enjoy strategic game play in which objects are arranged in consideration of the shape, the attributes of the enemy character, and the attributes of the object.

3. Process Next, an example of the process of the game device according to the present embodiment will be described with reference to the flowchart of FIG.

First, the appearance point setting unit 112 sets the appearance point AP of the enemy character on the game field according to the game field in the virtual space (step S10). Next, the traveling route calculation unit 114 determines, from the appearance point AP to the placement point where the target object TO is placed, based on the height information of the game field, the attributes of the objects that form the game field, and the attributes of the enemy character. The traveling route PP is calculated, and the display control unit 116 displays the calculated traveling route PP on the game screen (step S11).

Next, the field forming unit 110 determines whether or not an operation input instructing the placement of the object has been performed (step S12), and when the operation input has been performed (Y in step S12), a plurality of types are selected. The object selected from among the objects in response to the player's input is placed at the position on the game field specified according to the player's input (step S13). Here, when an operation input for instructing the removal of the object is made, the field forming unit 110 removes the object designated according to the input of the player from the virtual space. Next, the traveling path calculation unit 114 determines whether or not an object that is an obstacle (which cannot be destroyed by the enemy character) is arranged on the traveling path PP (step S14), and the object is the traveling path PP. When it is arranged above (Y in step S14), the progress path PP is recalculated based on the height information of the game field, the attribute of the arranged object and the attribute of the enemy character, and the display control unit 116 , The recalculated traveling route PP is displayed on the game screen (step S15).

Next, the game control unit 118 determines whether or not an operation input instructing the placement of the player character PC has been performed (step S16), and when the operation input has been performed (Y in step S16), The player character PC selected from the player characters owned by the player in response to the player's input is placed at the position on the game field specified in accordance with the player's input (step S17).

Next, the field forming unit 110 determines whether or not an operation input instructing the movement of the target object TO has been performed (step S18), and when the operation input has been performed (Y in step S18), The target object TO is placed at the placement point selected according to the player's input, and the placement position of the target object TO is changed (step S19). Next, the traveling route calculation unit 114 determines the traveling route PP from the appearance point AP to the placement position of the target object TO based on the height information of the game field, the attributes of the objects forming the game field, and the attributes of the enemy character. After recalculation, the display control unit 116 displays the recalculated traveling route PP on the game screen (step S20).

Next, the game control unit 118 determines whether or not a predetermined time has passed since the appearance point AP was set (step S21), and when the predetermined time has not passed (N in step S21), Control goes to step S12. When the predetermined time has elapsed (or the advance of the enemy character has already started) (Y in step S21), the game control unit 118 causes the enemy character that has intermittently appeared from the appearance point AP to proceed. Control for moving along PP and control for competing the enemy character traveling along the traveling path PP and the player character PC arranged in the game field (step S22). Further, when the enemy character reaches the target object TO, a return point is set on the game field, and the enemy character is controlled so as to move toward the return point with the target object TO.

Next, it is determined whether or not to continue the process (step S23), and when the process is continued (the enemy character having the target object TO has not reached the return point) (Y in step S23), Control goes to step S12.

The present invention is not limited to the one described in the above embodiment, and various modifications can be made. For example, terms referred to as broad or synonymous terms in the description or drawings can be replaced with broad or synonymous terms in other descriptions in the specification or drawings.

100...Processing unit, 110...Field forming unit, 112...Appearance point setting unit, 114...Progress path calculating unit, 116...Display control unit, 118...Game control unit, 120...Image generating unit, 130...Sound generating unit,150 Input unit 170 Storage unit 190 Display unit 192 Sound output unit 196 Communication unit

Claims (7)

A field forming unit for updating a game field in the virtual space by arranging or removing an object selected from a plurality of types of objects according to a player's input in the virtual space,
After the start of the game using the game field, an appearance point setting unit that sets a position or a region that is an appearance point of an enemy character in the virtual space according to the game field,
A travel route calculation unit that calculates a travel route of the enemy character from the appearance point to the target of the enemy character;
A display control unit for displaying the traveling route on a game screen,
Moving the enemy character from the appearance point toward the target along the traveling route, and causing a computer to function as a game control unit that controls a game in which the enemy character and the player character play a battle;
The field forming unit is
In accordance with the player's input, the placement position of the target object placed in the virtual space and serving as the target is changed,
The traveling route calculation unit,
A program for recalculating the traveling route when the placement position of the target object is changed. In claim 1,
The field forming unit is
A program for arranging the target object at an arrangement point selected according to a player's input among a plurality of arrangement points set in advance on the game field. In claim 1 or 2,
The game control unit,
A program for starting the advance of the enemy character after a lapse of a predetermined time after the appearance point is set. In any one of Claim 1 thru|or 3,
The traveling route calculation unit,
A program that recalculates the traveling path based on height information of the game field corresponding to the object placed in the virtual space. In any one of Claim 1 thru|or 4,
The traveling route calculation unit,
A program that recalculates the traveling route based on the attribute of the enemy character and the attribute of the object arranged in the virtual space. In any one of Claim 1 thru|or 5,
The field forming unit is
A program for removing an object in response to an attack of the enemy character on the object when the attribute of the enemy character and the attribute of the object arranged on the traveling path satisfy a predetermined condition. A field forming unit for updating a game field in the virtual space by arranging or removing an object selected from a plurality of types of objects in the virtual space according to an input from the player,
An appearance point setting unit that sets a position or a region that is an appearance point of an enemy character in the virtual space after the game that uses the game field is started, in accordance with the game field.
A travel route calculation unit that calculates a travel route of the enemy character from the appearance point to the target of the enemy character;
A display control unit for displaying the traveling route on a game screen,
A game control unit configured to move the enemy character from the appearance point toward the target along the traveling path, and to control a game in which the enemy character and the player character play a battle;
The field forming unit is
In accordance with the player's input, the placement position of the target object that is placed in the virtual space and becomes the target is changed,
The traveling route calculation unit,
A game device, wherein the proceeding path is recalculated when the arrangement position of the target object is changed.

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