JP5758078B2 - Game system and program for realizing the game system - Google Patents

Description

The present invention is a game system, related to programs for implementing the game system, in particular, it relates to an arrangement method of an object.

  Conventionally, an action game has been developed in which a player operates a predetermined character and fights against an enemy character in a virtual game space (for example, JP 2009-153559 A). Hereinafter, a character operated by the player is referred to as a “player character”, and an enemy character is referred to as an “enemy character”.

  In such an action game, the game progresses when the player character attacks and defeats the enemy character. Further, since the enemy character also attacks the player character, the player needs to operate the player character so as to prevent or avoid the attack from the enemy character. Some enemy characters attack with a flying tool such as a gun, but an attack that requires approach such as an attack using a weapon such as a sword or an attack using a bare hand such as a punch (hereinafter referred to as an “approach attack”). Some only do. An enemy character that performs only a close attack cannot attack unless the proximity attack reaches the player character. Therefore, by attacking such an enemy character with a flying tool from a distant position, the player character can defeat the enemy character without being attacked.

  If an enemy character that performs only such an approaching attack moves momentarily and appears in front of the player character, the player who has been alerted by being at a distant position feels surprise and impatience, and makes the game fresh. I can feel it. In addition, the variation in the attack of the enemy character, such as attacking the player character after moving instantaneously, makes it necessary for the player to fight the enemy character with a sense of tension. Note that “instantaneous movement” means instantaneous movement to another place away from the place where it was, and the character (which may be an object) that was in the previous frame is moved to the next frame. Then, erase it from the place and suddenly appear in another place.

JP 2009-153559 A

  However, an action game in which an enemy character moves instantaneously near the player character has not been developed conventionally. This is considered to be due to the following reason. That is, when there is an obstacle at the instantaneous movement destination, the obstacle and the enemy character after the instantaneous movement are displayed on the game screen so that the image becomes unnatural. In the case of a game that runs on a three-dimensional virtual game space, unnaturalness is particularly noticeable. Further, when there is an obstacle between the instantaneous movement destination and the player character, the enemy character cannot attack the player character, so that it does not make sense to move instantaneously. In particular, when the instantaneous movement destination is surrounded by an obstacle (for example, a wall), the enemy character cannot move from there. Further, even when the height of the instantaneous movement destination is significantly different from the height of the position where the player character is standing, the enemy character after the instantaneous movement cannot attack the player character. For example, when the instantaneous movement destination is higher than the head of the player character, the enemy character after the instantaneous movement cannot attack the player character by punching or kicking. Also in this case, the momentary movement does not make sense.

  Further, the problem that the character and the obstacle after the movement are displayed unnaturally overlapped occurs not only in the case of the instantaneous movement but also in the case of the normal movement of the character. The character used a method of moving along a predetermined route while searching for the intersection of meshes (not displayed on the game screen) stretched around the virtual game space toward the target point. . That is, the difference between the instantaneous movement and the normal movement can be considered as a difference in the distance between the position where the character previously existed and the position of the next movement destination. Therefore, when the character moves to the intersection of the next mesh to be moved, the character may overlap an obstacle.

  Further, when setting a game stage (not limited to an action game), the position of an object (including a character; the same applies hereinafter) is not determined in advance, and may be arbitrarily arranged at the start of the game stage. The arrangement of objects on the game stage is changed every time, and the game stage variation becomes rich. However, as described above, if objects are arranged so as to overlap each other, they are displayed on the game screen so that the image is unnatural. Further, when the player character is arranged in a state surrounded by other objects, the movement of the player character is restricted. Therefore, a method of arbitrarily arranging each object at the start of the game stage has not been adopted conventionally.

  The present invention has been conceived under the circumstances described above, and even when an object is arranged at a position different from a preset position, an object that does not appear unnatural on the game screen. The object is to provide a game to which a placement method is applied.

  In order to solve the above problems, the present invention takes the following technical means.

The program provided by the first aspect of the present invention includes a specific point setting unit that sets a specific point, which is an arbitrary place on a virtual game space, and the specific point set by the specific point setting unit. An appearance point setting means for setting an appearance point for causing an object arranged in the virtual game space to appear in the vicinity of the virtual game space, and the virtual game space on a determination line segment connecting the specific point and the appearance point It is determined whether or not there is an obstacle arranged above, it is determined that there is no obstacle on the determination line segment , and if the appearance point does not overlap the obstacle, the appearance point is determined. Appearance determination processing means for determining that the object may appear, and the appearance poi If it is determined that it may be allowed to appear the object bets, to function as the appearance processing means that would give the object the appearance point.

  Note that an object in the present invention is an object arranged in a virtual game space and is a concept including a character. Further, the obstacle in the present invention is arranged in the virtual game space, and in addition to the object (including the character), the area where the character is not desired to appear, for example, the waterside that cannot be walked, the ground, It is a concept that includes what is included in the background, such as walls and pillars.

  In a preferred embodiment of the present invention, the computer is a line segment of a predetermined length extending in a height direction in the virtual game space from a predetermined part of the object when the object appears at the appearance point. It further functions as a height determination processing means for determining whether or not there is a ground contact surface on which the object is grounded on a certain height line segment, and the appearance processing means determines the appearance point by the appearance determination processing means. When it is determined that the object may appear, and the height determination processing unit determines that the ground contact surface is on the height line segment, the object appears at the appearance point.

A game system provided by the second aspect of the present invention includes a recording unit that records the program provided by the first aspect of the present invention, and a control that executes processing based on the program recorded in the recording unit. And a portion .

  According to the first aspect of the present invention, when there is no obstacle on the determination line segment that is a line segment connecting the specific point and the appearance point, and the appearance point does not overlap the obstacle, the appearance Make an object appear at a point. Accordingly, it is possible to prevent the appearing object from being arranged so as to overlap the obstacle, or the obstacle from being arranged between the specific point and the appearing object.

  When the present invention is applied to instantaneous movement of an enemy character near a player character, the instantaneously moving enemy character is arranged to overlap the obstacle, or there is an obstacle between the instantaneously moving enemy character and the player character. It is possible to suppress the occurrence of the inconvenience. Further, when the present invention is applied to the object movement process, it is possible to prevent the moved object from being placed on the obstacle, so that the movement path of the object can be determined at each drawing timing of the game image. it can. Thereby, the path along which an object moves can be changed every time the game is played, and a diverse game scene can be produced.

  Further, according to the second aspect of the present invention, when there is an obstacle on the determination line segment that is a line segment connecting the specific point and the appearance point, and the appearance point does not overlap the obstacle, An object appears at the appearance point. Therefore, an object can appear on the back side of the obstacle with respect to the specific point, and the object that appears at that time can be prevented from overlapping with the obstacle.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

It is a figure for demonstrating the setting of an appearance plan point, and a plane determination process. It is a figure for demonstrating the case where an enemy character appears after correcting an appearance point on an XZ plane. It is a figure for demonstrating the case where an enemy character appears after correcting an appearance point in the Y-axis direction. It is a figure for demonstrating a height determination process. It is a figure for demonstrating whether the enemy character made to appear can attack a player character by the height of a ground-contact plane. It is a figure for demonstrating attack determination processing. It is a block diagram which shows the game device which concerns on this invention. It is a flowchart for demonstrating an instantaneous movement attack process.

  Hereinafter, as a preferred embodiment of the present invention, a case where a game program according to the present invention is applied to game software will be specifically described with reference to the accompanying drawings. In the following description, a case where an action game is progressing in a home game device (hereinafter referred to as “game device”) will be described as an example.

  The action game according to the present embodiment proceeds by causing the player character PC to fight the enemy character in the three-dimensional virtual game space, and the player character PC defeats the enemy character. The player character PC attacks the enemy character with a weapon such as a gun or a sword, or with a bare hand such as a punch or kick. On the other hand, the enemy character also attacks the player character PC. The attacking method by the enemy character is preset for each enemy character, and there is an attacking method using a weapon and an attacking method with a bare hand. Some enemy characters attacking with bare hands move instantly around the player character PC and attack. The present invention is intended to prevent such an appearance of an enemy character moving at a moment from being unnaturally displayed on the game screen.

  Hereinafter, a method for determining the appearance location of an enemy character that has moved instantaneously will be described with reference to FIGS.

  In the present embodiment, an enemy character EC instantaneously moves around the player character PC when a predetermined condition (for example, the player character PC shoots the enemy character EC twice with a gun) is satisfied. And attack. The predetermined condition may be set as appropriate according to the content of the game. For example, a predetermined time may elapse after the enemy character EC appears, or the enemy character EC is damaged more than a predetermined amount. It may be a case.

  At this time, the location where the instantaneously moving enemy character EC appears is determined as follows. That is, first, a plurality of locations (hereinafter referred to as “scheduled appearance points”) that are candidates for locations where the enemy character EC appears are set around the player character PC. Next, it is determined whether one scheduled appearance point selected from the plurality of scheduled appearance points is a place suitable for causing the enemy character EC to appear and attack. If it is determined by this determination that the place is suitable for causing the enemy character EC to appear and attack, the expected appearance point is a place where the enemy character EC appears (hereinafter referred to as “appearance point”). . On the other hand, if it is determined that the place is not suitable for causing the enemy character EC to appear and attack, another scheduled point of appearance is selected from a plurality of scheduled points of appearance. Hereinafter, the determination and selection of the expected appearance point are repeated until the appearance point is determined. In addition, when there is no place suitable for causing the enemy character EC to appear and attack among the set scheduled appearance points, it is suitable for causing the enemy character EC to appear and performing an attack that does not defeat the player character PC. Select a location. When there is no place suitable for causing the attack not to be defeated, the enemy character EC is not allowed to make an attack by instantaneous movement. In this case, a plurality of scheduled appearance points may be set anew for determination and selection. At this time, in order to set the scheduled appearance point to be a point different from the previously scheduled planned appearance point, the position may be set to be shifted, or after the player character PC is moved with the time being shifted. It may be set.

  The action game according to the present embodiment proceeds in a three-dimensional virtual game space. A three-dimensional orthogonal coordinate system is set on the three-dimensional virtual game space, the axis indicating the vertical direction of the three-dimensional virtual game space is the Y axis, and the horizontal plane is the XZ plane. On the XZ plane including the specific point indicating the position of the player character PC (center position around the waist of the player character PC), four positions that are separated from the specific point by a predetermined distance L and are equidistant from each other are the expected appearance points. (See YP1 to YP4 in FIG. 1). The expected appearance point (appearance point) is a point that becomes the position of the enemy character EC (center position around the waist of the enemy character EC) when the enemy character EC appears (the expected appearance point ( The appearance point) and the point indicating the position of the enemy character EC may be different points with different Y coordinates, and the specific point and the point indicating the position of the player character PC may be different points with different Y coordinates. It is good.) The predetermined distance L is set according to the distance that the enemy character EC that appears at the scheduled appearance point can attack the player character PC.

  In this embodiment, four scheduled appearance points are set, but the number of scheduled appearance points is not limited. Further, although each scheduled appearance point is set to be equidistant from the specific point and each scheduled appearance point is set to be equally spaced, the present invention is not limited to this. The distance between each scheduled appearance point and the specific point may not be constant, and the interval between each scheduled appearance point may be set in any manner.

  The determination as to whether or not the enemy character EC is suitable for causing the player character PC to attack is performed by movement determination processing and attack determination processing. The movement determination process determines whether or not the selected scheduled appearance point is a place suitable for causing the enemy character EC to appear, and includes a plane determination process and a height determination process. The attack determination process determines whether or not the enemy character EC that has appeared at the selected scheduled appearance point is suitable for performing an attack to defeat the player character PC. It consists of time height determination processing.

  When the enemy character EC appears at the selected expected appearance point, the enemy character EC overlaps an obstacle (for example, another object, the ground, a wall, a pillar, etc.) arranged in the three-dimensional virtual game space. When displayed, the image is unnatural. Further, when the enemy character EC appears at the selected expected appearance point and an obstacle is placed between the enemy character EC and the player character PC, the enemy character EC after the instantaneous movement is the player character PC. Cannot attack. The plane determination process is a determination process for eliminating these disadvantages.

  FIG. 1 is a diagram for explaining setting of a scheduled appearance point and plane determination processing.

This figure is a view of the three-dimensional virtual game space as viewed from above. The arrow in the lower right of the figure indicates the X axis, Y axis, and Z axis in the three-dimensional orthogonal coordinate system set on the three-dimensional virtual game space, and the Y axis is in the positive direction on the front side. (The same applies to the following figures). The scheduled appearance points YP1 to YP4 (referred to as “scheduled appearance point YP” if not specified) are a predetermined distance L from the specific point TP on the XZ plane including the specific point TP indicating the position of the player character PC. It is set at equal intervals at a distant position. That is, if the coordinates of the specific point TP are (X ₀ , Y ₀ , Z ₀ ), the four expected appearance points are YP ₁ (X ₀ , Y ₀ , Z ₀ + L), YP 2 (X ₀ -L, Y ₀ , _{Z 0), YP3 (X 0} , Y 0, Z 0 -L), is set as _{YP4 (X 0 + L, Y} 0, Z 0).

  The plane determination process is a process of determining whether there is an obstacle on the plane line segment M that is a line segment connecting the specific point TP and the scheduled appearance point YP. The “plane determination process” corresponds to the “appearance determination process” of the present invention, and the “plane line segment M” corresponds to the “determination line segment” of the present invention. When there is an obstacle on the plane line segment M, when the enemy character EC is made to appear at the expected appearance point YP (in the figure, since the enemy character EC is in a state before being arranged, the enemy character EC is indicated by a broken line) The same applies to the following figures.) The enemy character EC is displayed so as to overlap the obstacle, or the obstacle is arranged between the enemy character EC and the player character PC. It will be. Therefore, it is determined that the scheduled appearance point YP is not a place suitable for causing the enemy character EC to appear. In this case, the next scheduled appearance point YP is selected, and the plane determination process is performed. On the other hand, when there is no obstacle on the plane line segment M, a height determination process described later is performed. When there is no obstacle on the plane line segment M, the attack determination process described later may be performed without performing the height determination process.

  In the case of the figure, first, the expected appearance point YP1 is selected and the plane determination process is performed. The object OBJ1 is on the plane line segment M1 connecting the specific point TP and the scheduled appearance point YP1, and the enemy character EC appears in the object OBJ1 when the enemy character EC appears at the planned appearance point YP1. Therefore, it is determined that the expected appearance point YP1 is not a place suitable for causing the enemy character EC to appear. Next, the scheduled appearance point YP2 is selected, and plane determination processing is performed. There is an object OBJ2 on the plane line segment M2 connecting the specific point TP and the expected appearance point YP2, and when the enemy character EC appears at the expected appearance point YP2, the object OBJ2 is between the enemy character EC and the player character PC. Therefore, it is determined that the expected appearance point YP2 is not a place suitable for causing the enemy character EC to appear. Next, the scheduled appearance point YP3 is selected, and the plane determination process is performed. Since there is no obstacle on the plane line segment M3 connecting the specific point TP and the scheduled appearance point YP3, a height determination process is performed. Note that the order of selection of the scheduled appearance points is not limited to this.

  Even when there is no obstacle on the plane line segment M, the enemy character EC may be displayed so as to overlap the obstacle when the enemy character EC appears. In this case, in this embodiment, in order to prevent the enemy character EC from overlapping an obstacle, the enemy character EC appears after correcting the appearance point on the XZ plane. The determination as to whether or not the enemy character EC is to be displayed overlapping the obstacle is performed by so-called atari determination.

  FIG. 2 is a diagram for explaining a case where the enemy character EC appears after correcting the appearance point on the XZ plane.

  FIG. 5A shows a state where the scheduled appearance point YP is determined as the appearance point SP. In FIG. 9A, since there is no obstacle on the plane line segment M connecting the specific point TP (not shown) and the scheduled appearance point YP, the planned appearance point YP appears as an enemy character EC in the plane determination process. It is determined that it is a suitable place to make it happen. If it is determined that the enemy character EC is suitable for appearing in other determination processes such as the height determination process, the expected appearance point YP is determined as the appearance point SP. However, when the enemy character EC appears at the appearance point SP, the enemy character EC is displayed so as to overlap the object OBJ.

  FIG. 5B shows a state in which the enemy character EC appears after the appearance point SP is corrected on the XZ plane. In the case of the state of FIG. 6A, when the enemy character EC appears at the appearance point SP as it is, the enemy character EC is displayed so as to overlap the object OBJ. In this case, the appearance point SP is corrected in the right direction in the figure so that the enemy character EC does not overlap the object OBJ (from the original appearance point (SP) indicated by a white circle in FIG. The enemy character EC is made to appear. As a result, the enemy character EC appears so as not to overlap the object OBJ. Such correction of the appearance point SP can be similarly applied not only on the XZ plane but also on the XY plane as described above.

  Instead of correcting the appearance point SP on the XZ plane so that the enemy character EC does not overlap the obstacle, the enemy character EC becomes an obstacle when the enemy character EC appears at the expected appearance point YP. It is determined whether or not they are displayed in an overlapping manner. If they are displayed in an overlapping manner, the next scheduled appearance point YP may be selected as a place that is not suitable for causing the enemy character EC to appear. Further, it is determined whether or not the enemy character EC overlaps the obstacle on the XY plane or the YZ plane as well as the XZ plane, and if it overlaps (for example, the head of the arranged enemy character EC is buried in the obstacle). In such a case, the next scheduled appearance point YP may be selected on the assumption that the enemy character EC is not suitable for the appearance.

  In the present embodiment, the Y coordinate of the appearance point SP is the same as the Y coordinate of the specific point TP. However, when the enemy character EC is placed at the appearance point SP, the enemy character EC is not necessarily in contact with the ground plane. For example, when the contact surface immediately below the appearance point SP is higher than the contact surface immediately below the specific point TP, when the enemy character EC is placed at the appearance point SP, the enemy character EC appears to be buried in the contact surface. Become. On the other hand, when the ground plane immediately below the appearance point SP is lower than the ground plane directly below the specific point TP, when the enemy character EC is placed at the appearance point SP, the enemy character EC appears in a state of being lifted from the ground plane. become. In order to eliminate these inconveniences, in this embodiment, the enemy character EC appears after the appearance point SP is corrected in the Y-axis direction so that the enemy character EC is in contact with the ground plane. Note that the determination of whether or not the enemy character EC contacts the ground plane when the enemy character EC is placed at the appearance point SP corresponds to the “contact determination” of the present invention.

  FIG. 3 is a diagram for explaining a case where the enemy character EC appears after the appearance point SP is corrected in the Y-axis direction. In addition, in the description which shows each axis | shaft of the three-dimensional orthogonal coordinate system of the upper right of the figure (a), the Z-axis has shown that the near side is a negative direction.

  FIG. 5A shows a state where the ground contact surface GND immediately below the appearance point SP is higher than the tip of the enemy character EC (the back of the foot). When the enemy character EC appears in the state of FIG. 11A, the body of the enemy character EC is displayed in a state where it is buried in the ground plane GND.

  FIG. 5B shows a state in which the enemy character EC appears after the appearance point SP is corrected in the Y-axis direction. In the case of the state shown in FIG. 6A, when the enemy character EC appears at the appearance point SP as it is, the enemy character EC is displayed in a state where it is buried in the ground plane GND. In this case, the appearance point SP is corrected upward in the figure so that, for example, the foot of the enemy character EC is in contact with the ground plane GND (the original appearance point (SP) indicated by a white circle in FIG. 5B). To the appearance point SP indicated by a black circle), the enemy character EC appears. By this processing, the enemy character EC appears so as to be in contact with the ground plane GND. This process (a process of correcting the appearance point SP in the Y-axis direction so that the enemy character EC contacts the ground plane GND) is hereinafter referred to as a grounding process.

  However, when the contact surface immediately below the appearance point SP is too high or too low compared to the contact surface immediately below the specific point TP, the enemy character EC appears at a position that is too high or too low with respect to the player character PC. Therefore, the enemy character EC after the instantaneous movement cannot attack the player character PC. The height determination process is a determination process for eliminating this inconvenience, and is performed only when it is determined in the plane determination process that the expected appearance point YP is a place suitable for causing the enemy character EC to appear.

  FIG. 4 is a diagram for explaining the height determination process.

  This figure is a view when the three-dimensional virtual game space is viewed from the negative direction of the Z axis in the three-dimensional orthogonal coordinate system set on the three-dimensional virtual game space. The height determination process is performed on a height line segment N that is a line segment having a predetermined length H that extends downward from the appearance point YP in the three-dimensional virtual game space (the negative direction of the Y axis). This is a process for determining whether or not there is a ground. When there is a ground plane on the height line segment N (in the figure, the ground plane is the ground plane GND1 or the ground plane GND2), the height of the appearance point SP of the enemy character EC by the grounding process (position in the Y-axis direction) ) Is changed, the enemy character EC can attack the player character PC, and it is determined that the scheduled appearance point YP is a suitable place for the enemy character EC to appear.

  FIG. 5A shows an enemy character EC that appears when the ground plane in FIG. 4 is the ground plane GND1. In FIG. 4A, the player character PC is in contact with the ground plane having the height of the ground plane GND2 in FIG. 4, and the enemy character EC is in contact with the ground plane GND1. Therefore, since the attack of the enemy character EC reaches the player character PC (in FIG. 5A, the punch of the enemy character EC hits the head of the player character PC), the expected appearance point YP is the enemy character EC. It is determined that it is a suitable place to appear.

  On the other hand, when there is no ground plane on the height line segment N (see the case where the ground plane is the ground plane GND3 in FIG. 4), the height of the appearance point SP of the enemy character EC (position in the Y-axis direction) by the grounding process. If the enemy character EC changes, it is determined that the expected appearance point YP is not a suitable place for the enemy character EC to appear, assuming that the enemy character EC cannot attack the player character PC. In this case, the next scheduled appearance point YP is selected, and the plane determination process is performed.

  FIG. 5B shows an enemy character EC that appears when the ground plane in FIG. 4 is the ground plane GND3. In FIG. 4B, the player character PC is in contact with the ground plane having the height of the ground plane GND2 in FIG. 4, and the enemy character EC is in contact with the ground plane GND3. Therefore, since the attack of the enemy character EC does not reach the player character PC (the punch of the enemy character EC does not reach the body of the player character PC in FIG. 5B), the expected appearance point YP is the enemy character EC. It is determined that it is not a suitable place to appear.

  Note that the starting point and the length H of the height line segment N are set so that the enemy character EC can attack the player character PC when the ground surface is on the height line segment N. The Therefore, when the enemy character EC can attack the player character PC even from a high position, the starting point of the height line segment N may be set to a high position. For example, when the enemy character EC performs an attack by kick, the enemy character EC can be attacked if the leg of the enemy character EC reaches the head of the player character PC, so that the starting point of the height line segment N is set as the position of the face of the enemy character EC. Can do. When the enemy character EC can attack the player character PC even from a low position, the length H of the height line segment N may be increased (or the start point may be set to a low position). For example, when the enemy character EC makes an attack with a spear, it can be attacked if the tip of the spear reaches somewhere in the head from the leg of the player character PC, so that the starting point of the height segment N is the head of the enemy character EC. The length H of the height line segment N can be about twice the height of the enemy character EC.

  When the length H of the height line segment N is long, the expected appearance point YP appears in the enemy character EC in the height determination process even if the ground contact surface is at a position lower than that displayed on the screen. In some cases, it is determined that the place is suitable for the purpose. In this case, if the enemy character EC is arranged to be in contact with the ground plane by the grounding process, the appearing enemy character EC may not be displayed on the screen. That is, when the ground plane is lower than the height of the enemy character EC from the bottom end of the screen, the enemy character EC is not displayed on the screen. In order to prevent this, in the present embodiment, the length H of the height line segment N is set to be equal to or less than the length from the start point of the height line segment N to the bottom end of the screen.

  When the enemy character EC hangs on the ceiling like a bat, the height line segment N is a line segment extending in the positive direction of the Y-axis, and the grounding process is performed so that the foot touches the ceiling instead of the ground plane. Should be done.

  When it is determined in the plane determination process and the height determination process that the expected appearance point YP is a suitable place for the enemy character EC to appear (that is, the expected appearance point YP appears in the enemy character EC in the movement determination process) If it is determined that the location is suitable for the attack), an attack determination process is performed.

  The enemy character EC attacks the player character PC after appearing around the player character PC by instantaneous movement. The player character PC that has been attacked may fall to the ground plane. However, if there is a wall in the direction in which the player character PC falls, the fallen player character PC is buried and displayed on the wall, resulting in an unnatural image. Further, if the position where the player character PC falls so as not to be buried in the wall is corrected, the player character PC will fall to an unnatural position if it falls under the attack of the enemy character EC. Further, if the ground plane at the position where the player character PC falls is too high or too low as compared to the ground plane at the position where the player character PC has been attacked, the player character PC will fall to a position that is too high or too low due to the grounding process. It becomes an unnatural game image. The attack determination process is a determination process for eliminating these inconveniences. The attack plane determination process eliminates the former inconvenience (the unnaturalness of the fallen player character PC in the horizontal direction), and the attack height determination process. However, the latter inconvenience (the unnaturalness in the height direction of the fallen player character PC) is eliminated.

  FIG. 6 is a diagram for explaining the attack determination process. FIG. 4A is a diagram for explaining the attack plane determination process, and is a view when the three-dimensional virtual game space is viewed from above (the positive direction of the Y axis). FIG. 4B is a diagram for explaining the height determination process at the time of attack, and is a view when the three-dimensional virtual game space is viewed from the negative direction of the Z axis in the three-dimensional orthogonal coordinate system. The figure shows a state in which the enemy character EC that appears by instantaneous movement is attacking the player character PC. As a result of the attack, the player character PC falls backward (in the negative direction of the X axis) (see the broken line arrow in FIG. 5B), and is defined as the player character PC ′ (indicated by the broken line in the figure). Will appear. In FIG. 5B, the player character PC ′ appears with the body in contact with the ground. However, in order to explain the height determination process during attack, the state before the grounding process is described. ing.

  The attack plane determination process determines whether there is an obstacle on the plane line segment M ′ (length L ′) that is a line segment connecting the tip of the player character PC ′ that has fallen and the tip of the foot. This is a determination process (see FIG. 5A). Note that the fallen player character PC ′ is a player character that has fallen due to the attack that appears when the enemy character EC appears at the expected appearance point YP due to instantaneous movement and attacks the player character PC. PC is represented. The “attack determination process” corresponds to the “attack determination process” of the present invention, and the “plane line segment M ′” corresponds to the “second determination line segment” of the present invention. When there is an obstacle on the plane line segment M ′, when the enemy character EC appears at the expected appearance point YP and is attacked, the player character PC ′ that has fallen due to the attack is displayed overlapping the obstacle. As a result, it is determined that the attack (attack for defeating the player character PC) at the scheduled appearance point YP is not appropriate. In this case, the next appearance point YP is selected and the plane determination process is performed. When there is an obstacle on the plane line segment M ′, the next appearance point YP may not be selected, but the enemy character EC may be attacked without defeating the player character PC. On the other hand, when there is no obstacle on the plane line segment M ′, it is determined that an attack that defeats the player character PC at the scheduled appearance point YP is appropriate (no problem), and an attack height determination process described later is performed. If there is no obstacle on the plane line segment M ′, the enemy character EC may appear at the expected appearance point YP and attacked without performing the attack height determination process.

  In the case of FIG. 5A, since there is a wall WAL on the plane line segment M ′, it is determined that an attack to defeat the player character PC at the expected appearance point YP is not appropriate, and the next expected appearance point YP is selected. The plane determination process is performed.

  The attack height determination process is performed in a predetermined direction that extends downward (in the negative direction of the Y axis) in the three-dimensional virtual game space from a predetermined part (for example, the center point of the head) of the fallen player character PC ′. This is processing for determining whether or not there is a ground contact surface on the height line segment N ′, which is a line segment of length H ′ (see FIG. 5B). Note that the predetermined part of the player character PC 'that has fallen means a predetermined part in the case where the player character PC has fallen to the ground contact surface that has been in contact with the ground before the player character PC has fallen. Further, the “height determination process during attack” corresponds to the “second determination process” of the present invention, and the “height line segment N ′” corresponds to the “second height line segment” of the present invention. When there is a contact surface on the height line segment N ′, even if the height of the appearance position of the fallen player character PC ′ is changed by the contact processing, it is not so unnatural, so the attack at the expected appearance point YP. It is determined that (attack to defeat the player character PC) is appropriate (no problem). In this case, the enemy character EC is caused to appear at the expected appearance point YP and the attack is performed. On the other hand, if there is no contact surface on the height line segment N ′, it is unnatural if the height of the appearance position of the fallen player character PC ′ is changed by the contact processing, so the attack (player character) at the expected appearance point YP. It is determined that the attack to kill the PC is not appropriate. In this case, the next appearance point YP is selected and the plane determination process is performed. Note that, when there is no ground plane on the height line segment N ′, the next appearance point YP may not be selected, but the enemy character EC may be attacked without defeating the player character PC. .

  If there is no wall WAL in FIG. 5B (if there is a wall WAL, it is determined that an attack that defeats the player character PC by the attack plane determination process is not appropriate before the attack height determination process). Since the ground plane GND5 is on the height line segment N ′, it is determined that an attack for defeating the player character PC is appropriate (no problem), and the enemy character EC is caused to perform the attack.

  If it is determined that all of the expected appearance points YP are not suitable for causing the enemy character EC to appear and defeating the player character PC, the set expected appearance points YP are acquired again, and the movement determination process is performed in order. Is done. When it is determined that the selected expected appearance point YP is a place suitable for causing the enemy character EC to appear, the enemy character EC appears at the expected appearance point YP without performing the attack determination process, and the player character PC To make an attack that does not defeat. On the other hand, if it is determined that the enemy character EC is not suitable for the appearance of the enemy character EC for all the expected appearance points YP, the enemy character EC is not instantaneously moved. Note that the enemy character EC may not be moved instantaneously without performing the movement determination process again. Also, a new appearance scheduled point YP may be set.

  The attack that the enemy character EC performs after the instantaneous movement (both the attack that defeats the player character PC and the attack that does not defeat the player character PC) may be a predetermined attack or the height at which the enemy character EC appears. You may make it change according to a position. For example, when the height position of the foot of the enemy character EC that appears is as high as the head of the player character PC, the enemy character EC performs an attack that kicks the head of the player character PC and appears. When the height position of the arm of the EC is as high as the foot of the player character PC, the enemy character EC may perform an attack that grabs the player character PC and defeats it. In this case, the attack method of the enemy character EC is diversified, so that the player is not bored.

  In the present embodiment, the height determination process at the time of attack is performed when it is determined that an attack that defeats the player character PC is appropriate (no problem) in the plane determination process at the time of attack. If it is determined that is a suitable place for the enemy character EC to appear, the attack height determination process may be performed without performing the attack plane determination process. That is, as the attack determination process, both the attack plane determination process and the attack height determination process may be performed, or only one of them may be performed. Alternatively, only the movement determination process may be performed without performing the attack determination process.

  Next, the hardware configuration of this embodiment will be described.

  FIG. 7 is a block diagram showing a game device according to the present invention. The game apparatus 1 includes a main body 11 and an operation controller 12. The operation controller 12 is connected to the main body 11 by a dedicated cable. A monitor 13 is connected to the main body 11 by a dedicated cable. Further, the main body 11 is loaded with a disk 14 on which a game program and game data are recorded, and a memory card 15 for storing game data is loaded as necessary.

  The main body 11 includes a control unit 111, a drawing processing unit 112, an audio processing unit 113, a disk drive unit 114, a memory card connection unit 115, an I / O interface unit 116, and a communication processing unit 117. The control unit 111 is connected to a drawing processing unit 112, an audio processing unit 113, an I / O interface unit 116, and a communication processing unit 117. Further, the disk drive unit 114, the memory card connection unit 115, the operation controller 12, and the monitor 13 are connected to the I / O interface unit 116.

  In the game apparatus 1, the disc 14 on which the software for the action game is recorded is mounted on the disc drive unit 114, and the game program and game data in the disc 14 are read from the disc drive unit 114 into a RAM 111 c (described later) in the control unit 111. It is. When the read game program is executed by a CPU 111a (described later), the player can enjoy the game contents. The player can operate the player character PC by operating the operation members 12a to 12c (described later) of the operation controller 12, and can advance the game.

  The game data in the disk 14 includes character data such as the player character PC and enemy character EC, image data such as the character and background, sound data such as sound effects, and various tables referred to during game progress and drawing. Etc. are included.

  The control unit 111 has a microcomputer that controls the overall operation of the main body 11. The microcomputer includes a CPU 111a, a ROM 111b, a RAM 111c, and the like, and each unit is connected by a bus line.

  The CPU 111a performs overall control of the game progress by executing a game program read from the disk 14 to the RAM 111c by the disk drive unit 114. More specifically, when an operation signal is input from the operation controller 12 by the player's operation, the CPU 111a performs a predetermined game progress process for the operation signal in accordance with the game program. The CPU 111a displays the processing result on the monitor 13 with, for example, a two-dimensional image (hereinafter referred to as a game image) representing a three-dimensional game space, and outputs the sound from a speaker 13a (described later) of the monitor 13 with sound effects.

  In the present embodiment, the CPU 111a performs a determination process as to whether or not a predetermined condition for the instantaneous movement of the enemy character EC is satisfied. In addition, the CPU 111a performs a process for determining the appearance point SP of the enemy character EC that has moved instantaneously. That is, an enemy character that has moved instantaneously by performing a process of setting a plurality of scheduled appearance points YP based on a specific point TP, a plane determination process, a height determination process, an attack plane determination process, and an attack height determination process The appearance point SP of EC is determined. In addition, the CPU 111a performs a process of instantaneously moving the enemy character EC to the appearance point SP and a process of causing the enemy character EC to instantaneously move the player character PC to attack.

  The ROM 111b stores a basic program indicating a basic function of the game apparatus 1 such as a disk loading function, a game program recorded on the disk 14, and a procedure for reading game data. When the disk 14 is loaded in the disk drive unit 114, the CPU 111a operates the disk drive unit 114 according to the basic program in the ROM 111b, reads the game program and game data from the disk 14 into the RAM 111c, and sets the game start state.

  The RAM 111c provides an area for storing game programs and game data read from the disk 14 by the disk drive unit 114, and a work area for the CPU 111a to execute the game programs.

  The game program is configured by combining a plurality of programs. For example, a game progress program or a monitor that controls the operation of the player character PC displayed on the monitor 13 based on an operation signal of the player from the operation controller 12. 13 is configured by a graphic control program for controlling a game image to be displayed on the screen.

  Based on the player's operation signal from the operation controller 12, the CPU 111a reads a game program, image data, and the like from the disk 14 into the RAM 111c as necessary, and processes these data and executes the game program. The contents of the game image to be displayed on the monitor 13 are determined.

  The drawing processing unit 112 performs various arithmetic processes necessary for the drawing process. For example, the CPU 111a outputs a drawing command to the drawing processing unit 112 every 1/60 seconds. At this time, the CPU 111a determines an image to be displayed on the monitor 13, reads out image data (polygon data of an object such as a character and background data) necessary for drawing the image, light source data, and the like from the RAM 111c and draws them. This is supplied to the processing unit 112. Further, the CPU 111 a supplies position data of each character and operation signals input from the operation controller 12 to the drawing processing unit 112.

  Based on the image data and the operation signal supplied from the CPU 111a, the drawing processing unit 112 receives data necessary for drawing (positional relationship between each object and background, coordinates of polygons constituting each object on the screen of the monitor 13, The texture corresponding to each polygon and the data such as the reflection characteristics of each polygon are calculated, and the display screen of one frame (one frame) is displayed in a VRAM (not shown) in the drawing processing unit 112 based on the calculation result. Create image data. The generated image data of the display screen is output and displayed on the monitor 13 as a video signal every 1/60 seconds, for example.

  The audio processing unit 113 performs various arithmetic processes necessary for processing for generating sound such as sound effects. When the CPU 111a determines a sound effect or BGM sound content to be output from the speaker 13a of the monitor 13, the CPU 111a outputs a voice command to the voice processing unit 113. The sound processing unit 113 reads out sound effects or BGM sound data from the RAM 111c based on a sound command from the CPU 111a, performs predetermined processing and D / A conversion, and then outputs the processed sound to the speaker 13a.

  The disk drive unit 114 reads a game program and game data recorded on the disk 14 based on a loading command from the CPU 111a (a read command designating a game program to be loaded and game data).

  The memory card connection unit 115 is a unit for writing / reading information relating to game progress to / from the memory card 15. When a “save data” command is issued from the player while the game is in progress or at the end of the game, the CPU 111a sends information related to the game progress to the memory card 15 via the memory card connection unit 115 (for example, the player The information includes information such as the type of game character that has been set and various privileges such as points and items that have been acquired). In addition, information regarding the game progress stored in the memory card 15 is read out to the RAM 111c before the game is started.

  The I / O interface unit 116 transmits the game program and game data read by the disk drive unit 114 and the memory card connection unit 115 and the operation signal from the operation controller 12 to the control unit 111, Video signals, audio signals, and the like from the drawing processing unit 112 and the audio processing unit 113 are transmitted to the monitor 13.

  The communication processing unit 117 performs control for transmitting and receiving data when communicating with another game apparatus 1 via the network line 2. The communication processing unit 117 transmits an operation signal input from the operation controller 12 or a signal output from the CPU 111 a to the other game device 1 via the network line 2, and from the other game device 1 via the network line 2. A signal to be transmitted is received and input to the CPU 111a.

  The operation controller 12 is operated by the player to operate the character or make various settings regarding the game, and includes a plurality of buttons 12a, a left lever 12b, and a right lever 12c. When the operation controller 12 is operated by the player, the operation signal is transmitted to the control unit 111, and the character displayed on the monitor 13 performs a predetermined action. Examples of the predetermined action include a movement action such as running, squatting, jumping, and an attack action for attacking an opponent using a weapon. The moving operation is mainly operated by the left lever 12b, and the attacking operation is mainly operated by the plurality of buttons 12a and the right lever 12c.

  The monitor 13 displays a display screen indicating the game progress state according to the video signal sent from the main body 11, or outputs sound such as sound effects from the speaker 13 a according to the voice signal sent from the main body 11. It is a device for. The monitor 13 is composed of, for example, a television receiver having an external input terminal for inputting a video signal and an audio signal.

  The disk 14 is an optical disk such as a DVD-ROM or a CD-ROM. The disc 14 stores a game program and various data and image data necessary for executing the game program. The memory card 15 is a non-volatile recording medium capable of rewriting data, such as a flash memory. Since the recording of the work area of the RAM 111c disappears when the power of the game apparatus body 11 is turned off, the memory card 15 stores information on the game progress that should remain without being erased from the recording of the work area of the RAM 111c. Record.

  The game apparatus 1 can be connected to the network line 2 such as the Internet line via the network adapter 16. In this case, it is also possible to play a game between a plurality of game devices 1 via the network line 2 (so-called “online game”). In the present embodiment, a game performed by the game apparatus 1 alone has been described, but the present invention can also be applied to such an online game.

  Next, an attack process after the instantaneous movement of the enemy character EC (hereinafter referred to as “instant movement attack process”) will be described with reference to FIG.

  FIG. 8 is a flowchart for explaining the instantaneous movement attack process performed by the CPU 111 a of the game apparatus 1. The instantaneous movement attack process is started when a predetermined condition for instantaneous movement of the enemy character EC is satisfied.

  First, a specific point TP is acquired (S1). That is, the coordinates of the current position of the player character PC are acquired. Next, based on the specific point TP, a plurality of appearance points YP are set (S2). In the present embodiment, on the XZ plane including the specific point TP, four positions that are separated from the specific point TP by a predetermined distance L and are equidistant from each other are set as the expected appearance points YP1 to YP4 (see FIG. 1). . Next, it is determined whether or not the scheduled appearance point YP remains (S3). In the present embodiment, one of the four scheduled appearance points YP1 to YP4 is selected, and each determination described below is performed. When any one of the determination conditions is not satisfied (that is, when it is determined that it is inappropriate to make the enemy character EC appear), the selected expected appearance point YP is excluded from the options. Step S3 is a process of determining whether or not the scheduled appearance point YP as an option remains.

  When the appearance schedule point YP remains (S3: YES), the appearance schedule point YP is selected (S4). In the present embodiment, selection is made counterclockwise in order from YP1 (see FIG. 1). Next, it is determined whether or not the scheduled appearance point YP satisfies the plane determination condition (S5). The plane determination condition is a condition that there is no obstacle on the plane line segment M that is a line segment connecting the specific point TP and the scheduled appearance point YP, and the determination process corresponds to the above-described plane determination process (see FIG. 1). ). When the plane determination condition is not satisfied (S5: NO), that is, when there is an obstacle on the plane line segment M (see plane line segments M1 and M2 in FIG. 1), the process returns to step S3.

  When the plane determination condition is satisfied (S5: YES), that is, when there is no obstacle on the plane line segment M (see plane line segments M3 and M4 in FIG. 1), the expected appearance point YP satisfies the height determination condition. Is determined (S6). The height determination condition is a condition that there is a grounding surface on a height line segment N that is a line segment extending downward (in the negative direction of the Y axis) from the expected appearance point YP in the three-dimensional virtual game space. The determination process corresponds to the height determination process described above (see FIG. 4). When the height determination condition is not satisfied (S6: NO), that is, when there is no ground plane on the height line segment N (see the ground plane GND3 in FIG. 4), the process returns to step S3.

  When the height determination condition is satisfied (S6: YES), that is, when there is a ground plane on the height line segment N (see the ground planes GND1 and GND2 in FIG. 4), whether or not the attack plane determination condition is satisfied. It is determined (S7). The plane determination condition at the time of attack is a condition that there is no obstacle on the plane line segment M ′ that is a line segment connecting the tip of the player character PC ′ and the tip of the foot of the fallen player character PC ′. This corresponds to the time plane determination process (see FIG. 6A). The fallen player character PC ′ is a player character PC that has fallen due to the attack that appears when the enemy character EC appears at the expected appearance point YP by an instantaneous movement and attacks the player character PC. Represents. If the attack plane determination condition is not satisfied (S7: NO), that is, if there is an obstacle on the plane line segment M '(see FIG. 6A), the process returns to step S3. When the attack plane determination condition is not satisfied in step S7 (S7: NO), the process proceeds to steps S16 and S17 to be described later, and the instantaneous movement process to the expected appearance point selected in step S4 and the play character character PC are performed. An attack process that does not defeat (hereinafter simply referred to as “non-defeat attack process”) may be performed, and the instantaneous movement attack process may be terminated. In the present embodiment, it is determined whether or not the height determination condition (step S6) is satisfied after determining whether or not the plane determination condition (step S5) is satisfied. After determining whether or not the condition determination condition (step S6) is satisfied, it may be determined whether or not the plane determination condition (step S5) is satisfied.

  If the attack plane determination condition is satisfied (S7: YES), that is, if there is no obstacle on the plane line segment M ', it is determined whether or not the attack height determination condition is satisfied (S8). The height determination condition at the time of attack is on a height line segment N ′, which is a line segment extending downward (in the negative direction of the Y axis) in the three-dimensional virtual game space from a predetermined part of the player character PC ′ that has fallen. The determination process corresponds to the above-described height determination process during an attack (see FIG. 6B). When the height determination condition at the time of attack is not satisfied (S8: NO), that is, when there is no ground contact surface on the height line segment N ', the process returns to step S3. If the attack height determination condition is not satisfied in step S8 (S8: NO), the enemy character EC may be attacked without defeating the prank character PC. That is, the process may proceed to step S16, which will be described later, and an instantaneous movement process (S16) and an attack process that does not defeat (S17) may be performed to end the instantaneous movement attack process.

  When the height determination condition at the time of attack is satisfied (S8: YES), that is, when there is a contact surface on the height line segment N ′ (see FIG. 6B), an instantaneous movement process is performed (S9), and play Attack processing for defeating the yak character PC (hereinafter simply referred to as “defeat attack processing”) is performed (S10), and the instantaneous movement attack processing is terminated. The instantaneous movement process is a process of instantaneously moving the enemy character EC to the appearance point SP, a process for causing the enemy character EC to perform a predetermined action (a preliminary action action for instantaneous movement), and the coordinates of the expected appearance point YP. And processing for setting the position coordinates of the enemy character EC. By the instantaneous movement process and the drawing process separately performed, the enemy character EC performs a preliminary action, and an image of the instantaneous movement is displayed at the scheduled appearance point YP. It is set so that the player character PC cannot move while the enemy character EC is performing the preliminary action. Further, instead of the enemy character EC suddenly appearing due to the instantaneous movement, the enemy character EC may appear to jump out of the ground (floor), or it may appear to fall from the sky (ceiling). It can also be directed. The attack process for defeating is a process for causing the enemy character EC to attack the player character PC, and a process for causing the enemy character EC to perform a predetermined attack action (for an attack having a large attack power to defeat the player character PC). Contains. An image in which the enemy character EC attacks the player character PC is displayed by the attacking process for defeating and the drawing process executed separately.

  If the height determination process is not performed, step S6 may be omitted, and if YES in step S5, the process proceeds to step S7. If the attack plane determination process is not performed, step S7 may be omitted, and if YES in step S6, the process proceeds to step S8. Further, when the attack height determination process is not performed, step S8 may be omitted, and if YES in step S7, the process proceeds to step S9. Further, when the attack determination process is not performed, steps S7 and S8 may be omitted, and the process may proceed to step S9 if YES in step S6.

  In step S3, when there is no remaining appearance point YP (S3: NO), the appearance point YP set in step S2 is acquired again (S11). Next, it is determined whether or not the scheduled appearance point YP remains (S12). In the present embodiment, one of the four scheduled appearance points YP1 to YP4 re-acquired in step S11 is selected, and the same plane determination and height determination as in steps S5 and S6 are performed (steps S14 and S15). ). If any one of the determination conditions is not satisfied, the selected expected appearance point YP is excluded from the options. Step S12 is a process of determining whether or not the scheduled appearance point YP as an option remains.

When the appearance schedule point YP remains (S12: YES), the appearance schedule point YP is selected (S13). Next, it is determined whether or not the scheduled appearance point YP satisfies the plane determination condition (S14). The plane determination conditions are the same as those described in step S5. If the plane determination condition is not satisfied (S14: NO), the process returns to step S12. When the plane determination condition is satisfied (S14: YES), it is determined whether or not the expected appearance point YP satisfies the height determination condition (S15). The height determination condition is the same as that described in the process of step S6. If not satisfied height determination condition (S15: NO), the flow returns to step S 12. When the height determination condition is satisfied (S15: YES), the instantaneous movement process (S16) and the attack process (S17) that does not defeat are performed, and the instantaneous movement attack process is ended.

  The instantaneous movement process in step S16 is the same process as the instantaneous movement process in step S9. The attack process that does not defeat is a process that causes the enemy character EC to attack without defeating the player character PC, and has a predetermined attack action on the enemy character EC (for an attack with a small attack power that does not defeat the player character PC). The process to perform is included. An image in which the enemy character EC attacks the player character PC is displayed by the attack process that does not defeat and the drawing process that is performed separately.

  In step S12, when there is no remaining appearance point YP (S12: NO), the instantaneous movement attack process is terminated. In this case, it is also possible to return to step S2 and set the expected appearance point YP again. At this time, it is necessary to set a scheduled appearance point YP that is different from the previously planned planned appearance point YP. Alternatively, the process may return to step S1 after a predetermined time has elapsed and acquire the specific point TP again. When the player character PC moves during the predetermined time, since the acquired specific point TP is different from the previous specific point TP, the expected appearance point YP set in step S2 is the previously set expected appearance point YP. Will be different.

  According to the present embodiment, it is determined whether or not each of the expected appearance points YP set around the player character PC satisfies each determination condition, the appearance point is determined, and the enemy character EC is caused to appear at the appearance point. I am attacking. Therefore, the enemy character EC that has moved instantaneously is displayed so as to overlap the obstacle, or the obstacle is placed between the player character PC and the enemy character EC after the instantaneous movement may attack the player character PC. It does not become an unnatural state that it cannot be done. Further, even if the enemy character EC appears so as to come into contact with the ground, it does not become an unnatural state that the player character PC cannot attack due to a difference in height position. Thus, even if the enemy character EC that has moved instantaneously appears around the player character PC, the display on the game screen does not become unnatural.

  In addition, the player character PC that has fallen due to the attack of the enemy character EC after the instantaneous movement is displayed so as to overlap the obstacle, and the player character PC does not fall to an unnatural height position. Thereby, even if the enemy character EC that has moved instantaneously is attacked by the player character PC, the display on the game screen does not become unnatural.

  In the above-described embodiment, a case has been described in which a scheduled appearance point is set on the XZ plane including the specific point, but the present invention is not limited to this. For example, the scheduled appearance point may be set on a spherical surface having a predetermined radius centered on the specific point. Moreover, you may make it set an expected appearance point to the arbitrary points in the spherical body of the predetermined radius centering on a specific point.

  Moreover, although the case where the game progresses on the three-dimensional virtual game space has been described in the above embodiment, the present invention can also be applied to the case of a game that progresses on the two-dimensional virtual game space. For example, in the case of a game that progresses on a two-dimensional plane (horizontal plane), the height direction is not taken into consideration, so there is no need to perform a height determination process and an attack height determination process. Therefore, only the plane determination process and the attack plane determination process need be performed. On the other hand, for example, in the case of a so-called horizontal scroll game, the height direction is also taken into consideration, so that the height determination process and the attack height determination process may also be performed.

  Moreover, although the said embodiment demonstrated the case where the enemy character EC was instantaneously moved to the position where there is no obstacle between player characters PC, it is not restricted to this. Depending on the content and scene of the game, the enemy character EC may be moved to a position where there is an obstacle between the player character PC and the enemy character EC. For example, the enemy character EC that has been shot by the player character PC may be instantaneously moved to the back side of a pillar or a wall in order to avoid shooting. In this case, it is only necessary to determine whether to perform instantaneous movement by performing only the plane determination process. In the plane determination process, the predetermined distance L is set so that the scheduled appearance point YP (scheduled appearance position of the enemy character EC) is not too close to the specific point TP (current position of the player character PC). (See FIG. 1). When the obstacle OBJ exists on the plane line segment M connecting the selected scheduled appearance point YP and the specific point TP, and the obstacle OBJ does not exist on the planned appearance point YP (the expected appearance point in FIG. 1) In YP2), it is determined that the plane determination condition is satisfied, and the process proceeds to the instantaneous movement process. In other cases, the other scheduled appearance point YP is selected because the plane determination condition is not satisfied. Thereby, the enemy character EC can be instantaneously moved to the back side of the obstacle with respect to the player character PC. In addition, the enemy character EC that has moved instantaneously does not appear in an unnatural state such that it is displayed over the obstacle.

  When the enemy character EC is instantaneously moved to a position where there is an obstacle between the player character PC and the enemy character EC, it is necessary to prevent the enemy character EC from moving in a closed space. “Closed space” means not only a space completely surrounded by obstacles without any gaps (for example, inside a wall sandwiched between wallboards), but the enemy character EC appears in that space. In such a case, the enemy character EC cannot escape from the space (for example, in a cage that cannot be opened from the inside). If there is a possibility that the enemy character EC may instantaneously move to the closed space, it is determined whether or not the expected appearance point YP exists in the closed space, and the expected appearance point YP does not exist in the closed space. It is only necessary to make the instantaneous movement only in the case.

  Moreover, although the said embodiment demonstrated the case where the enemy character EC was instantaneously moved to the periphery of player character PC, it is not restricted to this. The present invention instantaneously moves a player character PC around the enemy character EC, or a friend character of the player character PC (for example, a character that acts together with the player character) around the player character PC. It can also be applied to cases. Further, the present invention can be applied not only to the case of instantaneous movement but also to the case of normal movement of a character. Further, the present invention is not limited to the case of moving the character, and can be applied to the case where the character suddenly appears.

  Moreover, what appears is not limited to characters, and various objects may appear. For example, when setting a game stage (not limited to an action game), if the positions of objects (including characters) are not determined in advance and are arbitrarily arranged at the start of the game stage, The placement of the object is changed every time, and the game stage variation becomes rich.

  In the above embodiment, an action game has been described as an example, but the present invention is not limited to this. The present invention can also be applied to other action games. In other action games, a so-called “boss character” corresponds to the “enemy character EC”.

  Moreover, although the said embodiment demonstrated the action game as an example, it is not restricted to this. For example, the present invention can also be applied to a game in which a player character and an enemy character fight, such as an RPG (role playing game), a shooting game, or a fighting game. Further, the present invention is a game in which a character operated by a plurality of players or a character controlled by a CPU forms a team and cooperates with an enemy character, or a character operated by another player as an enemy character. It can also be applied to such games.

  Also, in a game other than a game in which a player character and an enemy character fight, the present invention can be applied when another object appears (places) around a certain object. For example, when an item appears in the vicinity of a player character in an adventure game, the item is prevented from appearing in a position that cannot be obtained by the player character being displayed on top of another object. Can do.

  In the above embodiment, the case where the game is executed on the home game device has been described, but the present invention is not limited thereto. The present invention can be applied without being limited to the type of game device on which a game is executed. For example, a game is executed on a portable game device, an arcade game device, and a personal computer on which game software is installed. It can also be applied to.

  Although the case where the game apparatus 1 is used alone has been described in the above embodiment, the present invention is not limited to this. In the present invention, a plurality of game apparatuses 1 are connected by cable or wireless communication, the game apparatus 1 is connected to a game server via a network line 2, or the game apparatuses 1 are connected to each other via a network line 2. The present invention can also be applied to the case where the game apparatus 1 is used to simultaneously play a game.

Game system according to the present invention, and, the program is not intended to be limited to the embodiments described above. Game system according to the present invention, and the specific configuration of the program is varied in various ways.

DESCRIPTION OF SYMBOLS 1 Game apparatus 11 Main body 111 Control part 111a CPU (specific point setting means, appearance point setting means, appearance determination processing means, appearance processing means, height determination processing means, overlap determination means, grounding determination means, attack processing means, attack determination Means, second height determination processing means)
111b ROM
111c RAM
DESCRIPTION OF SYMBOLS 112 Drawing processing part 113 Audio | voice processing part 114 Disk drive unit 115 Memory card connection unit 116 I / O interface part 117 Communication processing part 12 Operation controller 13 Monitor 14 Disk 15 Memory card 16 Network adapter 2 Network line

Claims (3)

Computer
Specific point setting means for setting a specific point which is an arbitrary place in the virtual game space;
Appearance point setting means for setting an appearance point for causing an object arranged in the virtual game space to appear around the specific point set by the specific point setting means;
It is determined whether there is an obstacle arranged in the virtual game space on a determination line segment that is a line segment connecting the specific point and the appearance point, and the obstacle is on the determination line segment. And an appearance determination processing unit that determines that the object may appear at the appearance point when it is determined that the object does not overlap the obstacle.
An appearance processing means for causing the object to appear at the appearance point when the appearance determination processing means determines that the object may appear at the appearance point;
Program to make it function. The object is placed on a height line segment that is a line segment of a predetermined length extending in a height direction in the virtual game space from a predetermined part of the object when the object is caused to appear at the appearance point. Further function as height determination processing means for determining whether or not there is a grounding surface to be grounded,
The appearance processing means determines that the object may appear at the appearance point by the appearance determination processing means, and the height determination processing means has the ground contact surface on the height line segment. If it is determined, the object appears at the appearance point;
The program according to claim 1. A recording unit that records the program according to claim 1 or 2 ,
A control unit that executes processing based on a program recorded in the recording unit;
A game system comprising:

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