JP2009207624A - Program, information storage medium, and image generation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide: a program which achieves smooth movements of a group; an information storage medium; and an image generation system. <P>SOLUTION: The program makes a computer function as: a group movement-controlling section 122 for calculating movement control information on a group being an assembly of a plurality of units; a unit movement-controlling section 124 for calculating unit movement control information based on the group movement control information and unit position information; and an image generation section. The unit movement-controlling section 124 includes a unit position-exchanging section for exchanging the position of the plurality of units moved in the group when a predetermined movement event occurs, and calculates the unit movement control information for moving the units to moved positions corresponding to the exchanged positions. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a program, an information storage medium, and an image generation system.

  In recent years, an image generation system that generates an object such as a character placed and set in a virtual three-dimensional space (hereinafter referred to as an “object space”) as a predetermined image based on a virtual camera (a given viewpoint) is practical. It has become. Such an image generation system has come to be used in various systems as being capable of experiencing virtual reality, and is particularly important for improving entertainment and entertainment in game systems. Is being viewed.

In such a game system, a group (group) composed of a plurality of moving objects, that is, a group of objects is used, and various movement controls are performed on the group of objects.
JP 2000-172868 A

  However, in the image generation system as described above, the movement when the group moves with a change of direction becomes unnecessarily large, or the movement of each moving object becomes complicated, and the movement is smooth. May not be possible to express.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a program, an information storage medium, and an image generation system capable of realizing a smooth movement of a group.

(1) The present invention
A program for generating an image visible from a virtual camera in an object space,
A group movement control unit that calculates group movement control information for controlling movement of a group that is a set of a plurality of units;
A unit movement control unit that calculates unit movement control information for controlling movement of each unit based on the group movement control information and position information indicating an arrangement position of each unit in the group;
Arranging a plurality of units in the object space based on the unit movement control information, and causing the computer to function as an image generation unit that generates an image of the object space viewed from a virtual camera,
The unit movement control unit
When a predetermined movement event occurs, including a unit position replacement processing unit that performs a position replacement process after movement for a plurality of units in the group,
The present invention relates to a program for calculating unit movement control information for moving to a movement position corresponding to the position after replacement.

  The present invention also relates to an image generation system including the above-described units.

  The present invention also relates to a computer-readable information storage medium that stores (records) a program that causes a computer to function as each unit.

  The movement event may be generated by, for example, an input of a user's movement position designation.

  Here, the unit may be constituted by an object or a group of objects.

  A group is a set of multiple units that move in groups.For example, a group of fighters, planes, spaceships, submarines, or cars that move in groups, or move in groups. It may be a crowd, a group of animals, a group of birds, a school of fish, or the like.

  Each object is given a predetermined position in the unit, and may move so as to maintain the predetermined position. The movement is not limited to the case where the position corresponding to the predetermined position is always kept, and the movement may be performed using the predetermined position corresponding to the target position as the target position according to the movement characteristics of each object.

  ADVANTAGE OF THE INVENTION According to this invention, the program, information storage medium, and image generation system which can implement | achieve the smooth movement of a group can be provided.

(2) This program, information storage medium, and image generation system
The unit position replacement processing unit
You may perform the position exchange process after movement about the unit group set so that position exchange is possible.

(3) This program, information storage medium, and image generation system
The unit position replacement processing unit
When a given unit can take a plurality of positions, the position after movement corresponding to the plurality of positions that the given unit can take is obtained based on the position, and the position and position of the given unit before the movement are obtained. The post-movement position of the given unit may be determined based on the distance from the post-movement position corresponding to a plurality of possible positions of the given unit.

  When there are a plurality of exchangeable positions after movement, the position after movement may be determined based on the movement distance. Here, the position with the shortest moving distance may be preferentially selected, or the position with the shortest moving distance may be selected.

  In this way, since the moving distance for the position change is shortened, a smooth position change can be realized.

(4) This program, information storage medium, and image generation system
The unit position replacement processing unit
When there are a plurality of units whose positions can be switched in the group, the positions after movement may be determined in order from the unit with the highest priority according to the priority set for the plurality of units.

(5) This program, information storage medium, and image generation system
The unit position replacement processing unit
If there are multiple positions in the group where the units that can be replaced exist, the positions are arranged after moving in order from the highest priority position according to the priority order set for the multiple positions that can be replaced. Units may be determined.

(6) This program, information storage medium, and image generation system
The unit position replacement processing unit
If there are multiple correspondences between the position and unit after movement, the correspondence between the position and unit after movement is determined based on the total expected movement distance of each replaceable unit in each correspondence, and the determined correspondence According to the relationship, the units to be arranged at each position after the movement may be determined.

  The case where there are a plurality of correspondences between positions and units after movement is a case where there are a plurality of correspondences between positions and units that can be exchanged. In such a case, since the correspondence between the position after movement and the unit will take one of the plurality of correspondences, for each case, obtain the total expected movement distance of each replaceable unit, Based on this total, the correspondence between the position after movement and the unit may be determined.

  For example, when there are a plurality of positions P1, P2, and P3 in which a unit to be arranged can be replaced in a group, and there are a plurality of units U1, U2, and U3 that can take these positions P1, P2, and P3. , A (P1-U1, P2-U2, P3-U3), B (P1-U1, P2-U3, P3-U2), C (P1-U2, P2-U3) , P3-U1), D (P1-U2, P2-U1, P3-U3), E (P1-U3, P2-U1, P3-U3), F (P1-U3, P2-U2, P3-U1) There are six possible correspondences (permutations). For example, when the correspondence between the position before movement and the unit is A, the correspondence between the position after movement and the unit can take any of six ways A to F. Accordingly, when the correspondence between the position after movement and the unit is A to F, the position after movement of each unit U1 to U3 is obtained, and the expected movement of each unit based on the distance between the position before movement and the position after movement. You may obtain | require distance and add these and you may obtain | require the sum total of the estimated moving distance of each unit.

(7) This program, information storage medium, and image generation system
The unit movement control unit
For a plurality of formations that can be set for each group, formation information that is information related to the arrangement pattern of positions in each formation is stored, and formation information that is stored in association with the formation set for each group Based on the above, the arrangement position of each unit in the group may be determined.

  The different position arrangement pattern means that the number of positions constituting the formation, the arrangement position of each position, and the like are different.

(8) This program, information storage medium, and image generation system
The unit movement control unit
When the value of a predetermined parameter that can be associated with each group satisfies a predetermined condition, the arrangement position of each unit in the group may be determined according to the formation set for each group.

  When the predetermined condition is not satisfied, the arrangement position of each unit in the group may be determined without following the formation set for each group.

  The predetermined parameter that can be associated with each group may be a parameter set for each group, or a parameter set for a unit belonging to each group or an object belonging to each group.

  The predetermined parameter is, for example, a morale parameter, and may be set according to the damage of each unit or an object belonging to each unit, the arrangement state of each unit, group, moving object, etc. and the enemy. Good.

(9) This program, information storage medium, and image generation system
A formation setting unit that sets formations for each group may be further included based on the commander information associated with each group.

  For example, a configuration in which formation types that each commander can take is set as commander information. Moreover, the structure which the attribute of each commander is set as commander information and the formation type which can be taken according to an attribute may be defined.

The formation setting unit
Accepts formation selection information for selecting the type of formation you want each group to take, and determines whether the accepted formation selection information is accepted (whether the selected formation type can be adopted) or not. You may judge based on.

(10) This program, information storage medium, and image generation system
The group movement control unit
Based on the operation input information, the target movement position of the group is determined, group movement control information for moving the group to the target movement position is calculated,
The unit movement control unit is
Based on the target movement position of the group to which each unit belongs and the position information of each unit in the group, the target movement position of each unit is determined, and unit movement control information for moving each unit to the target movement position is calculated. May be.

  The target position of the movement destination of the group may be determined based on the operation input information.

(11) This program, information storage medium, and image generation system
An object movement control unit for calculating object movement control information for controlling movement of each object based on the unit movement control information and position information indicating the arrangement position of each object in the unit;
The unit controller is
Calculate unit movement control information for controlling movement of a unit that is a set of objects,
The image generation unit
A plurality of objects may be arranged in the object space based on the object movement control information, and an image of the object space viewed from the virtual camera may be generated.

(12) This program, information storage medium, and image generation system
The object movement control unit
Based on the target movement position of the unit to which each object belongs and the position information of each object in the unit, the target movement position of each object is determined, and object movement control information for moving each object to the target movement position is calculated. May be.

  Hereinafter, this embodiment will be described. In addition, this embodiment demonstrated below does not unduly limit the content of this invention described in the claim. In addition, all the configurations described in the present embodiment are not necessarily essential configuration requirements of the present invention.

1. Configuration FIG. 1 shows an example of a functional block diagram of the game system of the present embodiment. Note that the game system of this embodiment may have a configuration in which some of the components (each unit) in FIG. 1 are omitted.

  The operation unit 160 is for a player to input operation data of an object (moving body, player character), and functions thereof are a keyboard, a mouse, a lever, a button, a steering, a microphone, a touch panel type display, a casing, and the like. Can be realized.

  The storage unit 170 serves as a work area for the processing unit 100, the communication unit 196, and the like, and its function can be realized by a RAM (VRAM) or the like. The object data storage unit 176 stores object data of objects. For example, effect object data (polygon) is stored.

  The information storage medium 180 (computer-readable medium) stores programs, data, and the like, and functions as an optical disk (CD, DVD), magneto-optical disk (MO), magnetic disk, hard disk, and magnetic tape. Alternatively, it can be realized by a memory (ROM). The processing unit 100 performs various processes of the present embodiment based on a program (data) stored in the information storage medium 180. The information storage medium 180 can store a program for causing a computer to function as each unit of the present embodiment (a program for causing a computer to execute processing of each unit).

  The display unit 190 outputs an image generated according to the present embodiment, and its function can be realized by a CRT, LCD, touch panel display, HMD (head mounted display), or the like. The sound output unit 192 outputs the sound generated by the present embodiment, and its function can be realized by a speaker, headphones, or the like.

  The communication unit 196 performs various controls for communicating with the outside (for example, other game systems and servers), and functions thereof are hardware such as various processors or communication ASICs, programs, and the like. realizable.

  Note that a program or data for causing a computer to function as each unit of the present embodiment stored in the information storage medium or storage unit of the server is received via the network, and the received program or data is received by the information storage medium 180. Or may be stored in the storage unit 170. It is within the scope of the present invention to receive a program or data in this way to allow the game system to function.

  The processing unit 100 (processor) performs processing such as game processing, image generation processing, or sound generation processing based on operation data and programs from the operation unit 160. Here, as the game process, a process for starting a game when a game start condition is satisfied, a process for advancing the game, a process for placing an object such as a character or a map, a process for displaying an object, and a game result are calculated. There is a process or a process of ending a game when a game end condition is satisfied.

  The processing unit 100 performs various processes using the main storage unit 172 in the storage unit 170 as a work area. The functions of the processing unit 100 can be realized by hardware such as various processors (CPU, DSP, etc.), ASIC (gate array, etc.), and programs.

  The processing unit 100 includes an object space setting unit 112, a movement / motion processing unit 120, a virtual camera control unit 114, a game processing unit 140, a drawing unit 113, and a sound generation unit 130. Note that some of these may be omitted.

  The object space setting unit 112 is an object composed of primitives such as polygons, free-form surfaces, or subdivision surfaces representing display objects such as characters, buildings, stadiums, cars, trees, pillars, walls, and maps (terrain). ) Is set in the object space. For example, the position and rotation angle (synonymous with the direction and direction of the object in the world coordinate system, for example, rotation when rotating clockwise when viewed from the positive direction of each axis of the X, Y, and Z axes in the world coordinate system. The angle is determined, and the object is arranged at the position (X, Y, Z) at the rotation angle (rotation angle about the X, Y, Z axis).

  The movement / motion processing unit 120 performs a movement / motion calculation (movement / motion simulation) of an object (such as a character or a moving object). In other words, based on operation data input by the player through the operation unit 160, a program (movement / motion algorithm), various data (motion data), a physical law, or the like, the object is moved in the object space or the object is moved ( (Motion, animation). Specifically, object movement information (position, rotation angle, speed, or acceleration) and motion information (position or rotation angle of each part that constitutes the object) are sequentially transmitted every frame (1/60 seconds). Perform the required simulation process. A frame is a unit of time for performing object movement / motion processing (simulation processing) and image generation processing.

  The movement / motion processing unit 120 of the present embodiment may include a group movement control unit 122 that calculates group movement control information, a unit movement control unit 124, and an object movement control unit 126.

  The unit movement control unit 124 includes a unit position exchange processing unit that performs a process of exchanging positions after movement of a plurality of units in a group when a predetermined movement event occurs, and movement corresponding to the position after exchange Unit movement control information for moving to a position may be calculated.

  The unit position replacement processing unit may perform a position replacement process after movement for a unit group that is set to be capable of position replacement. When a given unit can take a plurality of positions, the position after movement corresponding to the plurality of positions that the given unit can take is obtained based on the position, and the position of the given unit before the movement is determined. The post-movement position of the given unit may be determined based on the distance from the post-movement position corresponding to a plurality of possible positions of the given unit. Further, when there are a plurality of units whose positions can be switched in the group, the positions after movement may be determined in order from the unit with the highest priority according to the priority set for the plurality of units. . In addition, when there are multiple positions in the group where units that can be replaced exist, the units are arranged after moving in order from the highest priority position according to the priority order set for the multiple positions that can be replaced. The unit to be determined may be determined. Also, when there are multiple correspondences between positions and units after movement, the correspondence between positions and units after movement is determined based on the total expected movement distance of each replaceable unit in each correspondence. The units arranged at each position after movement may be determined according to the correspondence relationship.

  The unit movement control unit 124 stores formation information that is information regarding the arrangement pattern of positions in each formation for a plurality of formations that can be set for each group, and associates them with the formations set for each group. The arrangement position of each unit in the group may be determined based on the formation information stored in the group.

The unit movement control unit 124 determines the arrangement position of each unit in the group according to the formation set for each group when the value of the predetermined parameter that can be associated with each group satisfies the predetermined condition. May be.
The program characterized by doing.

  Further, the group movement control unit 122 determines the target movement position of the group based on the operation input information, calculates group movement control information for moving the group to the target movement position, and the unit movement control unit 124. However, the unit movement control information for determining the target movement position of each unit based on the target movement position of the group to which each unit belongs and the position information of each unit in the group and moving each unit to the target movement position. May be calculated.

  The movement / motion processing unit 120 of this embodiment may be configured to include the object movement control unit 126. The object movement control unit 126 may calculate object movement control information for controlling the movement of each object based on the unit movement control information and the position information indicating the arrangement position of each object in the unit.

  The unit movement control unit 124 calculates unit movement control information for controlling the movement of a unit that is a set of a plurality of objects, and the object movement control unit 126 calculates the unit movement control information and each object in the unit. Object movement control information for controlling the movement of each object may be calculated based on the position information indicating the arrangement position.

  The object movement control unit 126 determines whether or not each object satisfies the position movement condition based on a predetermined parameter set for each object, and determines that each object satisfies the position movement condition. Control may be performed to move the position.

  The object movement control unit 126 determines whether or not each object satisfies the position movement condition based on the amount of damage received by each object, and moves the position of each object when determining that the position movement condition is satisfied. Control may be performed.

  When the object movement control unit 126 determines that each object satisfies the position movement condition, the object movement control unit 126 performs an object position exchange processing unit that performs a position exchange process between a plurality of objects belonging to the same unit including each object. Yes. Then, object movement control information for moving to a position corresponding to the position after the replacement may be calculated for a plurality of objects to be subjected to the position replacement processing.

  When the object position replacement processing unit determines that the given object satisfies the position movement condition, the object position replacement processing unit replaces the object located at the position serving as the evacuation area with respect to the position where the given object is located. Object position replacement processing may be performed as an object. Further, based on a value indicating the safety level associated with each position constituting the unit, a position replacement process may be performed with a position having a higher safety level than the given position as a save area for the given position. Alternatively, the position replacement process may be performed using the position having the shortest moving distance from a given position or the shorter than a predetermined reference as a retreat area. Further, the presence / absence of position replacement may be determined using conditions with different position replacement criteria according to the commander's character associated with the object. Further, when each object is damaged, it may be determined whether or not the position is changed.

  The unit movement control unit 124 determines a target movement position of the unit based on the given information, calculates unit movement control information for moving the unit to the target movement position, and an object movement control unit 126 determines the target movement position of each object based on the target movement position of the unit to which each object belongs and the position information of each object in the unit, and moves the object to the target movement position. Information may be calculated.

  The virtual camera control unit 114 performs a virtual camera (viewpoint) control process for generating an image viewed from a given (arbitrary) viewpoint in the object space. Specifically, based on operation data input by the player through the operation unit 160, a program (movement / motion algorithm), or the like, the position (X, Y, Z) or rotation angle (for example, the virtual camera in the world coordinate system) A process of controlling the rotation angle in the case where the X, Y, and Z axes rotate clockwise as viewed from the positive direction is performed. In short, processing for controlling the viewpoint position, the line-of-sight direction, and the angle of view is performed.

  The game processing unit 140 may include a formation setting unit 142, a parameter calculation unit 144, a parameter display object control unit 146, and a volume image object display control unit 148.

  The formation setting unit 142 may set formations for each group based on the commander information set in association with each group.

  The parameter calculation unit 144 may perform control to change the value of the predetermined parameter associated with each object according to the damage received by each object. Also, depending on the damage received by each object, the value of a predetermined parameter associated with each object is decreased or increased, and when the predetermined parameter set for each object reaches a predetermined disappearance reference value, Control may be performed so that at least a part of the object that has been reduced or increased in accordance with damage is restored to the state before damage for an object that is in the extinguished state.

  The parameter display object display control unit 146 calculates a recoverable damage parameter indicating a recoverable damage amount corresponding to a unit to which each object belongs based on the predetermined parameter or damage amount set for each object. Alternatively, control may be performed so that a parameter display object for notifying the recoverable damage amount is displayed on a part of the game image based on the recoverable damage parameter.

  The volume image object display control unit 148 may perform display control of a volume image object that causes the outer edge or volume of the unit to be imaged based on the position information of the objects constituting the unit.

  The drawing unit 120 performs drawing processing based on the results of various processing (game processing) performed by the processing unit 100, thereby generating an image and outputting the image to the display unit 190. When generating a so-called three-dimensional game image, first, object data (model data) including vertex data (vertex position coordinates, texture coordinates, color data, normal vector, α value, etc.) of each vertex of the object (model) ) Is input, and vertex processing (shading by a vertex shader) is performed based on the vertex data included in the input object data. When performing the vertex processing, vertex generation processing (tessellation, curved surface division, polygon division) for re-dividing the polygon may be performed as necessary.

  In the vertex processing, according to the vertex processing program (vertex shader program, first shader program), vertex movement processing, coordinate transformation, for example, world coordinate transformation, visual field transformation (camera coordinate transformation), clipping processing, perspective transformation (projection transformation) ), Geometry processing such as viewport conversion is performed, and based on the processing result, the vertex data given to the vertex group constituting the object is changed (updated or adjusted).

  Then, rasterization (scan conversion) is performed based on the vertex data after the vertex processing, and the surface of the polygon (primitive) is associated with the pixel. Subsequent to rasterization, pixel processing (shading or fragment processing by a pixel shader) for drawing pixels (fragments forming a display screen) constituting an image is performed. In pixel processing, according to a pixel processing program (pixel shader program, second shader program), various processes such as texture reading (texture mapping), color data setting / change, translucent composition, anti-aliasing, etc. are performed, and an image is processed. The final drawing color of the constituent pixels is determined, and the drawing color of the perspective-transformed object is output (drawn) to the drawing buffer 174 (a buffer capable of storing image information in units of pixels; VRAM, rendering target). That is, in pixel processing, per-pixel processing for setting or changing image information (color, normal, luminance, α value, etc.) in units of pixels is performed. Thereby, an image that can be seen from the virtual camera (given viewpoint) in the object space is generated. Note that when there are a plurality of virtual cameras (viewpoints), an image can be generated so that an image seen from each virtual camera can be displayed as a divided image on one screen.

  Note that the vertex processing and pixel processing are realized by hardware that enables polygon (primitive) drawing processing to be programmed by a shader program written in a shading language, so-called programmable shaders (vertex shaders and pixel shaders). Programmable shaders can be programmed with vertex-level processing and pixel-level processing, so that the degree of freedom of drawing processing is high, and expressive power is greatly improved compared to conventional hardware-based fixed drawing processing. Can do.

  The drawing unit 113 performs geometry processing, texture mapping, hidden surface removal processing, α blending, and the like when drawing an object.

  In the geometry processing, processing such as coordinate conversion, clipping processing, perspective projection conversion, or light source calculation is performed on the object. Then, object data (positional coordinates of object vertices, texture coordinates, color data (luminance data), normal vector, α value, etc.) after geometry processing (after perspective projection conversion) is stored in the object data storage unit 176. Is done.

  Texture mapping is a process for mapping a texture (texel value) stored in the texture storage unit 178 of the storage unit 170 to an object. Specifically, the texture (surface properties such as color (RGB) and α value) is read from the texture storage unit 178 of the storage unit 170 using the texture coordinates set (given) at the vertex of the object. Then, a texture that is a two-dimensional image is mapped to an object. In this case, processing for associating pixels with texels, bilinear interpolation or the like is performed as texel interpolation.

  As the hidden surface removal processing, hidden surface removal processing by a Z buffer method (depth comparison method, Z test) using a Z buffer 179 (depth buffer) in which a Z value (depth information) of a drawing pixel is stored may be performed. it can. That is, when drawing pixels corresponding to the primitive of the object are drawn, the Z value stored in the Z buffer 179 is referred to. Then, the Z value of the referenced Z buffer 179 is compared with the Z value at the drawing pixel of the primitive, and the Z value at the drawing pixel is the front side when viewed from the virtual camera (for example, a small Z value). If it is, the drawing process of the drawing pixel is performed and the Z value of the Z buffer 179 is updated to a new Z value.

  α blending (α synthesis) is a translucent synthesis process (usually α blending, addition α blending, subtraction α blending, or the like) based on an α value (A value).

  The α value is information that can be stored in association with each pixel (texel, dot), for example, plus alpha information other than color information. The α value can be used as mask information, translucency (equivalent to transparency and opacity), bump information, and the like.

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

  Note that the game system of the present embodiment may be a system dedicated to the single player mode in which only one player can play, or may be a system having a multiplayer mode in which a plurality of players can play. Further, when a plurality of players play, game images and game sounds to be provided to the plurality of players may be generated using one terminal, or connected via a network (transmission line, communication line) or the like. Alternatively, it may be generated by distributed processing using a plurality of terminals (game machine, mobile phone).

2. FIG. 2 is a diagram for explaining the outline of the game system of the present embodiment.

  The game system of the present embodiment can be realized by executing the program of the present embodiment on a PC (personal computer), for example. For example, it may be realized as an RTS (Real Time Strategy) on a PC. Here, RTS is not a turn system often used in simulation games (sequentially repeats your turn and opponent's turn like a shogi, and each player inputs at their turn). It is a game where the time and the situation change without stopping.

  The game system of this embodiment moves a fleet GR3 including a plurality of ships M1 (moving object) by an operation input from the operation unit, and battles an enemy fleet GR4 including a plurality of enemy ships M2 (moving objects). An image obtained by viewing an object space including a plurality of ship objects from a virtual camera is generated and displayed as a game image GI.

  Here, the fleet GR3 (group) includes a plurality of units GR1 (units), and each unit GR1 includes a plurality of vessels M1. Similarly, the enemy fleet GR4 (group) includes a plurality of enemy units GR2 (units), and each enemy unit GR2 includes a plurality of enemy ships M2. A plurality of fleet GR3 and enemy fleet GR4 are arranged in the object space.

  The player can move the fleet GR3 in the object space by selecting the fleet GR3 to be operated using the operation unit and designating the target position and direction of the movement destination.

  In the present embodiment, a plurality of ships M1 belonging to each unit GR1 can be fired. Shooting is started for each unit GR1 and is performed on the enemy unit GR2 determined as an attack target. That is, first, the enemy fleet GR4 displayed on the game screen is selected from the plurality of enemy fleets GR4, and among the plurality of enemy units GR2 belonging to the selected enemy fleet GR4, the enemy units within a predetermined distance range from the ship M1. GR2 is selected. Then, it is determined whether or not the attackable range of the ship M1 and the enemy ship M2 belonging to the selected enemy unit GR2 are hit. If it is determined that they are hit, the selected enemy unit GR2 is selected as the ship M1. Is determined as an attack target of the unit GR1 to which the unit belongs, and fire (attack) by all ships M1 belonging to the unit GR1 is automatically started.

  In the example shown in FIG. 2, the unit GR1 including the ship M1-1 has started shooting against the enemy unit GR2 including the enemy ship M2-1, and the unit GR1 including the ship M1-3 is Fire has begun on enemy unit GR2 including ship M2-2.

  As described above, according to the present embodiment, hit check can be omitted for the enemy fleet GR4 that is not displayed and the enemy unit GR2 that is located at a distant place, and the calculation load can be reduced. Further, when any ship M1 belonging to the unit GR1 becomes able to attack, it is possible to perform an effect in which all the ships M1 belonging to the unit GR1 start an attack.

  In this embodiment, after the start of shooting, a hit check is performed between the attackable range of each ship M1 belonging to the unit GR1 that started shooting and each enemy ship M2 belonging to the enemy unit GR2 to be attacked. Based on the above, attack performance and various parameters and results are calculated.

  For example, the hit determination in the hit check may be determined based on whether there is an enemy within the range or the possible shooting range. Then, in the case of hitting, the shooting effect that hits the target unit may be displayed, and in the case of losing, the losing effect may be displayed. Further, for example, as a penetration determination in a hit check, in the case of a hit, it may be determined whether the shield can be broken based on the distance from the attacking ship or the like. When penetrating, the durability of the ship M1 (moving body object) may be damaged, and when the durability reaches 0, it may be destroyed (deleted from the game space).

  In the example shown in FIG. 2, for the unit GR1 including the ship M1-1, since it is determined that the attackable range of the ship M1-2 and the enemy ship M2-1 are hit, the fire from the ship M1-2 is enemy. A shooting effect HE indicating that the ship M2-1 has been hit is displayed. Further, since it is determined that the attackable range of the ship M1-1 and the enemy ship M2 are not hit, a detach effect UE indicating that the shooting from the ship M1-1 has been removed is displayed. Also, for the unit GR1 including the ship M1-3, the shooting effect HE indicating that the shooting from the ship M1-3 hit the enemy ship M2-2 and the shooting from the ship M1-4 have been removed. The off effect UE is displayed.

3. Parameter management of this embodiment FIGS. 28A and 28C are definition tables that define the relationship between a fleet (an example of a group), a unit (an example of a unit), and a ship (an example of a moving object) according to this embodiment. It is an example. For example, as shown in FIG. 28A, a fleet organization table 700 that defines fleets and units belonging to the fleet is provided, and is associated with a fleet ID (information for identifying a fleet) 710 of each fleet (GR3 or GR4). Thus, the unit ID (information for identifying the unit) of the unit (GR1 or GR2) belonging to the fleet may be stored. For example, as shown in FIG. 28 (B), a unit organization table 730 that defines units and ships belonging to the units is provided, and corresponds to the unit ID (information for identifying units) 740 of each unit (GR1 and GR2). In addition, the ship ID (information for identifying the ship) 750 of the ship (M1 or M2) belonging to the relevant unit, the attribute of each unit (for example, a flagship unit, a normal battleship unit, a cruise ship, A unit-specific and invariant attribute indicating the characteristics of the unit such as a unit) 762, the fleet ID 760 of the fleet to which the unit belongs may be stored. Further, for example, as shown in FIG. 28C, a ship unit correspondence table 770 for defining a unit to which a ship belongs is provided, and each ship (corresponding to a ship ID (information for specifying a ship) 780) is associated with each ship ( The unit ID 790 of the unit to which M1 and M2) belong may be stored.

  Based on the definition information, a unit that is a set of ships or a fleet that is a set of units may be configured to manage various parameters related to the ship, the fleet, and the unit.

  FIGS. 29A to 29C are diagrams for explaining an example of parameters set in association with each fleet, each unit, and each ship according to the present embodiment. For example, as shown in FIG. 29A, a fleet parameter management table 810 for managing parameters of the fleet is provided, and is associated with the fleet ID (information for identifying the fleet) 812 of each fleet (GR3 and GR4). The fleet parameters of the fleet may be managed, and the values of the parameters may be updated according to the game situation.

  As the fleet parameter, for example, the current position coordinates 814 of each fleet may be provided. The current position coordinates 814 are position coordinates (x, y, z coordinate values in the world coordinate system) of the representative point of the fleet, and the current coordinate values may be calculated and updated for each frame.

  Further, as fleet parameters, for example, fleet target position coordinates 816 of each fleet may be provided. The fleet target position coordinate 816 is the position coordinate of the destination point of the representative point of the fleet when a movement event occurs (for example, when the target position and direction of the fleet destination are specified), and is set when the movement event occurs. It may be cleared when the movement associated with the movement event ends.

  Further, as a fleet parameter, for example, a formation type 818 of each fleet may be provided. As will be described later, in the present embodiment, a plurality of formations are prepared as possible formations of the fleet, and a desired formation can be selected by an operation input. Therefore, the formation type may be set or updated based on the formation selection input information.

  As fleet parameters, for example, fleet commander information (for example, a character ID serving as a commander) 820 may be provided. In this embodiment, a plurality of characters are prepared as fleet commanders, and a desired character can be selected as a commander by an operation input. Therefore, the commander information formation type may be set or updated based on the selection input information of the character to be the commander.

  For example, when the commander is R1, formation types A, B, and C can be selected, and when the commander is R5, formation types C and D can be selected. The type of formation type that each fleet can take may be different depending on the character to be the commander.

  Also, for example, as shown in FIG. 29B, a unit parameter management table 830 for managing parameters of units is provided, and associated with unit IDs (information for identifying units) 832 of each unit (GR1 and GR2). The unit parameters of the unit may be managed, and the values of the parameters may be updated according to the game situation.

  As unit parameters, for example, current position coordinates 834 of each unit may be provided. The current position coordinates 834 are position coordinates (x, y, z coordinate values in the world coordinate system) of the representative point of the unit, and the current coordinate values may be calculated and updated for each frame.

  As unit parameters, for example, unit target position coordinates 836 of each unit may be provided. The unit target position coordinate 836 is the position coordinate of the destination of the representative point of each unit when a movement event occurs (for example, when the target position and orientation of the fleet destination are specified), and is set when the movement event occurs It may be cleared when the movement associated with the movement event ends. The unit target position coordinates 836 may be obtained based on the fleet target position coordinates and position information in the fleet of the unit as described later.

  Further, as a unit parameter, for example, an in-fleet position ID 838 of each unit may be provided. As will be described later, in the present embodiment, positions are exchanged between units due to the occurrence of a movement event or the like. In such a case, the position ID 838 in the fleet of each unit is updated.

  Further, for example, a unit durability 840 of each unit may be provided as the unit parameter. For example, you may make it set based on the sum total of the durability (860 of FIG.29 (C)) of all the ships which belong to each unit. As will be described later, the durability of each ship is configured to decrease when each ship receives damage (in this case, if a bullet hits and penetrates), so the total durability of each ship for each frame The value may be obtained and updated.

  Further, as unit parameters, for example, morale (health level) 842 of each unit may be provided. The morale (health of morale) 842 of each unit is set and updated in accordance with, for example, the game situation (the number of enemies around, the magnitude of damage received and the number of destroyed ships) of each unit. May be.

  Further, for example, as shown in FIG. 29C, a ship parameter management table 850 for managing the parameters of the ship is provided, and is associated with the ship ID (information for specifying the ship) 852 of each ship (M1 and M2). Thus, the ship parameters of the ship may be managed, and the values of the parameters may be updated according to the game situation.

  As ship parameters, for example, current position coordinates 854 of each ship may be provided. The current position coordinates 854 are ship position coordinates (x, y, z coordinate values in the world coordinate system), and may be updated by calculating the current coordinate values for each frame.

  As ship parameters, for example, ship target position coordinates 856 of each ship may be provided. The ship target position coordinates 856 are the position coordinates of the movement destination of each ship when a movement event occurs (for example, when the target position and direction of the movement destination of the fleet are specified), and are set when the movement event occurs. It may be cleared when the movement associated with the event ends. The ship target position coordinates 856 may be obtained based on the unit target position coordinates and the position information of the unit of the ship as will be described later.

  Further, for example, an in-unit position ID 858 of each unit may be provided as the unit parameter. As will be described later, in the present embodiment, positions are exchanged between ships depending on the damage situation. In this case, the position ID 858 in each fleet of each ship is updated.

  Further, as a ship parameter, for example, a durability 860 of each ship may be provided. As will be described later, the durability of each ship is configured to decrease when each ship receives damage (in this case, if a bullet hits and penetrates). The total value of the durability of each ship may be obtained and updated.

  Further, for example, an extinction flag 862 for each ship may be provided as a ship parameter. While the disappearance flag 862 of each ship is OFF (for example, “0”), the durability parameter can be recovered under a predetermined condition. However, when the disappearance flag is turned on, the durability parameter cannot be recovered. May be.

4). FIG. 3 shows an example (fleet) of game images of the present embodiment.

  In the present embodiment, the fleet GR3 (group) composed of a plurality of units GR1 (units) can be input with information regarding the target position and orientation of the fleet destination via the operation unit. . The system calculates group movement control information for controlling movement of the fleet GR3 (group), which is a set of a plurality of units GR1 (units), according to the input information and various parameters.

  In addition, this system gives a position which is a relative position in the fleet to a plurality of units GR1 (units) belonging to the fleet GR3 (group) (position information indicating the position of each unit GR1 (unit) is given). The unit movement control information for controlling the movement of each unit GR1 (unit) is calculated based on the group movement control information and the position information and various parameters of each unit GR1 (unit) in the group.

  The group movement control information is, for example, a fleet target position that is a position coordinate after movement of each fleet GR3 (group), a position coordinate when each fleet GR3 (group) is moved, and the like. The fleet target position may be calculated based on the target position of the movement destination input from the operation unit. Further, the position coordinates of each fleet GR3 (group) when moving are in accordance with the position before movement, the fleet target position (position after movement), and parameters (for example, parameters related to movement attributes and damage parameters) given to each fleet. You may calculate by the set movement function Fg (t).

  In the present embodiment, the fleet (group) is composed of a maximum of 10 units GR1-1 to GR1-10 (units). FIG. 3 shows a state in which ten units GR1-1 to GR1-10 (units) constituting the fleet GR3 (group) are located at predetermined positions in the fleet.

  In the present embodiment, the positions that can be taken for each unit GR1 (unit) are determined. When the fleet GR3 (group) moves, the position of the destination corresponding to a predetermined position that can be taken according to the attribute of each unit GR1 (unit) is moved as a target position. Some units have only one position here, and some units have multiple positions. A unit having a plurality of possible positions may change the position (change to another possible position) under a predetermined condition (for example, when a movement event occurs).

  For example, the position that can be taken is determined by the attribute (for example, 762 in FIG. 28B) given to each unit GR1 (unit), and when the fleet GR3 (group) moves, each unit GR1 (unit) You may make it move as a target position the position of the movement destination corresponding to the predetermined position which can be taken with an attribute. If each unit GR1 (unit) has a predetermined attribute, the position may be changed between units GR1 (unit) having a predetermined attribute in the group.

  When a predetermined movement event occurs (for example, a movement event that involves rotation), positions are switched between before and after movement between units with a predetermined attribute in the group (multiple units whose positions can be switched). Unit movement control information for moving to a target position corresponding to the position after replacement may be calculated.

The unit movement control information is, for example, a unit target position which is a position coordinate of a movement destination of each unit GR1 (unit), a position coordinate at the time of movement of each unit GR1 (unit), and the like.
The unit target position may be calculated based on, for example, the fleet target position (group movement control information) and the position information (relative position in the fleet) of each unit GR1 (unit) in the fleet (group). The position coordinates of each unit GR1 (unit) when moving are the position of each unit GR1 before movement, the unit target position (position after movement), and parameters given to each unit (for example, parameters related to movement attributes, It may be calculated by a transfer function Fy (t) set in accordance with a damage parameter or the like.

  In this way, during movement of the fleet, each unit belonging to the fleet can perform a movement expression in which the corresponding position after movement is set as the target position and moves according to the characteristics toward the target position. That is, each unit is in a position corresponding to a predetermined position in the fleet before and after the movement (for example, when it is stopped before and after the movement), but does not maintain the predetermined position during the movement (the formation during the movement) Is not required). In this way, a more natural and realistic movement expression can be performed compared to a movement expression in which a unit belonging to the fleet is always located at a predetermined position even when the fleet moves.

  In the present embodiment, the commander 210 is set in the fleet GR3 (group), and the movement and operation of the fleet, how to receive damage and resilience, the formation that the fleet collects, etc. according to the set commander 210 These conditions are set, and movement control, results evaluation, control of various parameters, etc. are performed according to the conditions. As described in FIG. 29A, the commander may be set by selection from the player.

  FIG. 4 is an example (unit) of the game image of the present embodiment.

  In the present embodiment, the unit GR1 (unit) includes a plurality of ships M1 (moving object). As described with reference to FIG. 29C, the position management and the durability parameter may be provided for each ship M1 (moving object), and parameter management may be performed.

  Each ship M1 (moving object) belonging to the unit GR1 (unit) is given a position that is a relative position in the unit GR1 (unit) (position information indicating the position of each ship M1 (moving object) is given). ) Based on the unit movement control information, the position information of each ship M1 (moving object) in the unit, and various parameters given to each ship M1 (moving object), each ship M1 (moving object) Object movement control information for controlling movement may be calculated.

  The object movement control information is a ship target position, which is a position coordinate of a movement destination of each ship M1 (moving object), a position coordinate when each ship M1 (moving object) is moved, and the like. The ship target position may be calculated based on, for example, the unit target position (unit movement control information) and the position information (relative position in the unit) of each ship M1 (moving object) in the unit (unit). Further, the position coordinates of each ship M1 (moving body object) at the time of movement are the position before the movement of the ship M1, the ship target position (position after movement), and parameters (for example, parameters relating to movement attributes) given to the individual ships. Or a movement function Fo (t) set according to the damage parameter or the like.

  In this way, at the time of fleet movement, a moving object belonging to each unit of the fleet can be expressed as a movement in which the corresponding position after movement is set as the target position and moves according to the characteristics toward the target position. That is, each moving object is in a position corresponding to a predetermined position in the fleet unit before and after moving (for example, when it is in a stopped state before and after movement), but does not maintain the predetermined position during movement. In this way, even when the fleet moves, the ship (moving object) belonging to each unit (unit) of the fleet (group) is more natural and realistic than the movement expression in which the ship is always located at a predetermined position. A moving expression can be performed.

5. Parameter display object display control processing of this embodiment A parameter display object corresponding to a predetermined parameter such as a morale parameter or durability parameter may be generated and displayed on a part of the game screen.

  4 in FIG. 4 is a morale display showing the degree of morale of each unit, and shows the ratio of the morale bar 222 (percentage of the whole morale) and the morale level of each unit by the length of the morale bar 222. . For example, as described in FIG. 29B, a morale parameter may be set for each unit and the morale display 220 may be performed based on the value of the morale parameter.

  Further, 230 is a durability display indicating the durability of each unit. For example, as described in FIGS. 29B and 29C, the durability parameter is set for each ship, and the durability parameter of all ships belonging to the unit is set. The durability display 230 of each unit may be performed based on the value.

  The durability may be classified and displayed in three types: current durability 232, recoverable durability 234, and unrecoverable durability 236. For example, the bar 230 is divided into areas 232, 234, and 236 corresponding to the bars 230 and displayed in different modes (for example, different colors for each area), and the current durability 232 in the length of each area. The ratio of the recoverable durability 234 and the unrecoverable durability 236 may be indicated.

  The current durability 232 may be set according to the total durability of the ships in the unit. Further, the recoverable durability 234 may be set according to the sum of the durability of the ships in the unit that have been lost but can be recovered. The durability of a ship in a unit that has been lost but can be recovered is, for example, set based on the reduced durability of a ship that has suffered damage but has lost its durability but has not disappeared (sunk). Good. Further, the unrecoverable durability 236 may be set based on the lost durability of a ship that has already been sunk due to loss of durability.

  For example, to explain with a simple example, in the unit consisting of ships k1, k2, and k3, the ships k1, k2, and k3 each had a durability of 100 points, and the durability of the ship k1 was received. The damage has been reduced by 20 points and now is 80 points. The durability of ship k2 has been reduced by 50 points due to the damage received and now is 50 points. The durability of ship k3 has been reduced by 100 points due to the damage received. The current durability 232 is 130 points, which is the sum of 80 points of the ship k1 and 50 points of the ship k2, and the recoverable durability 234 is a decrease of the ship k1. 70 points, which is the sum of 20 points reduced and 50 points reduced by ship k2, and the unrecoverable durability 236 has already been sunk. It may be found as a durable 100 points lost from ship k2. In this way, the current durability: recoverable durability: non-recoverable durability = 130: 70: 100, so that based on this ratio, the bars 230 are respectively associated with the regions 232, 234, 236. The length may be set. In this way, the player can visually grasp the current durability, recoverable durability, and unrecoverable durability of the unit with the bar 230 displayed on the game screen.

  By doing so, the predetermined parameter (here, endurance parameter) set for each object (here, the ship) and the state of each object (whether it was sunk, or the position of each object) Is a parameter for notifying the recoverable damage amount based on the recoverable damage parameter by calculating the recoverable damage parameter indicating the recoverable damage amount corresponding to the unit (here, the unit) to which each object belongs. It is possible to control to display the notification object (here, the durability display 230) on a part of the game image.

  240 is a commander display object. In order for the commander set in the fleet to visually grasp, the commander display object 240 may be displayed in the vicinity of the parameter display object as a commander display object's face image or the like. In this embodiment, it is set so that the battle method, special technique, durability etc. differ depending on the commander character, so by playing the game while always being aware of the commander character with the commander display object, more You can enjoy the game world.

  In addition, you may implement | achieve that the way of fighting differs for every character of a commander by setting the formation which can be taken according to the character used as a commander, for example. Further, the fact that the durability is different depending on the commander may be realized, for example, by changing the replacement standard of the position of the damaged ship according to the character of the commander as described later.

6). Formation Processing of the Present Embodiment FIGS. 5 to 10 are diagrams showing formations that can be taken by the fleet in the present embodiment. Here, the formation indicates the arrangement pattern of the units belonging to each fleet, and the positions that the units can take are determined for each formation. 5 is a game image of a horizontal fleet, FIG. 6 is a game image of a vertical fleet, FIG. 7 is a game image of a square fleet, and FIG. 8 is a game image of a crane wing fleet. FIG. 9 is a game image of a spindle fleet, and FIG. 10 is a game image of a circle fleet. Which formation the fleet takes may be designated and selected by input. In this case, the formations that can be selected (selectable) according to the commander set in the fleet may be different.

  In addition, when the value of a predetermined parameter (for example, a morale parameter or durability parameter) associated with each fleet (group) or unit (unit) or ship (moving object) satisfies a predetermined condition, If the arrangement position of each unit in the group is determined according to the formation set for the group and the predetermined condition is not met, the arrangement position of each unit in the group without following the formation set for each group May be determined. For example, when the morale parameter and the durability parameter associated with each fleet are equal to or less than a predetermined standard, it is possible to perform an effect in which the set formation cannot be configured.

  FIGS. 11A to 11E are diagrams for explaining a formation setting method. In the present embodiment, when the number of units is a predetermined number (for example, six) or more, the formation is formed. FIGS. 11A to 11E show an arrangement form in the case where there are 6 to 10 units in the horizontal form. The arrangement pattern (each position) of the unit is determined according to the formation type and the number of units constituting the formation, and possible positions are determined according to the attribute of the unit. P1 is the designated position of the unit with the fleet commander (attribute 1), the designated position of the unit with the P2 left wing squadron commander (attribute 2), and P3 is the designated position of the unit with the right wing squadron commander (attribute 3) The specified position. P4 to P10 are positions that other (attribute 4) units can take. The other (attribute 4) units are given positions of P4 to P10, but can be exchanged under predetermined conditions. For example, when the units A and B belong to the other (attribute 4) and P5 and P6 are given as positions, the positions of the units A and B are exchanged in a predetermined case.

  The information on the arrangement pattern of the units for each formation may be defined as, for example, the coordinates of the arrangement position in the local coordinate system, and a position definition table in the fleet such as each position constituting the formation and the coordinates of the arrangement position may be provided. FIG. 18 is a diagram showing an example of the fleet position definition table 350. Here, the position ID 352 is identification information for identifying the position in each fleet, and the relative position in the fleet can be specified by the formation type and the position ID.

  X (354), Y (356), and Z (358) are the x coordinate, y coordinate, and z coordinate in the fleet local coordinate system of each position. If the formation can be defined on a plane, any coordinates may be omitted.

  Further, such a fleet position definition table 350 may be provided for each formation type and the number of units constituting the formation. Then, a table ID corresponding to the formation type and the number of units is set. For example, the formation type is horizontal formation, vertical formation, square formation, crane wing formation, spindle formation, or circle formation, with the formation IDs A, B, C, D, E, F, and the number of units that make up the formation after that. When the is attached, the definition table ID of the side formation formed by 6 units is A6, and the position definition table ID in the fleet of side formation formed by 10 units is A10.

  FIGS. 19A and 19B are diagrams for explaining a case in which a horizontal arrangement pattern is defined on the xz plane of the fleet's local coordinate system. FIG. 19 (A) is a diagram showing an arrangement pattern of a side formation of a fleet composed of 10 units in the fleet local coordinate system, and FIG. 19 (B) is a diagram of each formation in the formation corresponding to FIG. 19 (A). An example of a position definition table in a fleet for a given formation in which a correspondence relationship such as coordinates of positions and arrangement positions is defined is shown. As shown in FIG. 19A, the origin O of the fleet local coordinate system may be set to the reference position of the fleet (the position of the unit P1 where the fleet commander is located). In this way, the position coordinates of the units in the fleet can be defined as relative coordinates with respect to the reference position of the fleet. Here, the y coordinate of each position is the same and can be omitted.

  FIG. 26 is a diagram showing an example of unit position information.

  The configuration may be such that position information 610 of each unit is held as the position information of each unit. The position information 610 of each unit may store a position ID 630 in which each unit is arranged in association with the unit ID 620 of each unit. When the position is changed during the movement, the position ID 630 corresponding to the unit ID 620 of the unit to be exchanged is updated to the content after the exchange.

  In this way, by giving the position ID 630 of each unit as shown in FIG. 26 and the table ID 310 of the position definition table in the fleet as shown in FIGS. 18 and 19 as position information, the position of the unit is determined from the position information. The relative position coordinates in the fleet corresponding to the identified position can be acquired from the position definition table in the fleet. Based on the acquired relative position coordinates in the fleet and the position coordinates of the fleet in the world coordinate system, the position coordinates of each unit in the world coordinate system can be obtained.

7). Unit Position Replacement Processing Accompanying Movement FIGS. 12A, 12B, 13 and 20 are diagrams for explaining position replacement during movement according to the present embodiment. Here, in order to simplify the explanation, the movement of a fleet consisting of four units will be described as an example. For example, as shown in FIG. 20, it is assumed that a fleet GR3 composed of four units is arranged in the game space at a given time t. 410 indicates the position of the fleet GR3 at time t, and 412 indicates the direction of the fleet GR3 at time t. In this state, if the movement position 420 of the fleet and the direction 422 after the movement are designated by the operation input, the direction of the fleet is rotated 180 degrees before and after the movement.

  In such a case, if there is no exchange of positions between the units in the fleet, the arrangement pattern of the units in the fleet before and after the movement is changed from GR3 to GR3 'as shown in FIG. Here, b1 to b4 represent units, and P1 to P5 represent positions that the unit can take in the fleet. In FIG. 12A, the positions of the units b1 to b4 in the fleet are not changed before and after the movement. However, for example, as shown in FIG. 12 (A), when the direction of the fleet is rotated by 180 degrees, the unit b3 in the position P3 and the unit b4 in the position P4 are moved to the same position after the movement by the shortest path. When trying to do so, the movement paths of each unit would intersect, making the movement paths complicated and making it impossible to express smoothly.

  Here, it is assumed that the positions P3 and P4 are interchangeable positions. That is, it is assumed that the units b3 and b4 have attributes that can take positions P3 and P4. In the present embodiment, when a predetermined movement event occurs (for example, a movement event with rotation), when there are a plurality of units whose positions can be switched (for example, units having the same position attribute) in the group, For positions that can be exchanged, positions are exchanged before and after movement according to a predetermined rule. That is, as shown in FIG. 12B, the positions P3 and P4 of the unit b3 and the unit b4 are switched before and after the movement.

  In the case of movement that involves a change of direction, if you try to move to the position after movement with the shortest distance, the movement path of each unit crossed and it was difficult to express smooth movement, but the position can be switched By moving the units to the positions after replacement, as shown in FIG. 13, it is possible to realize a smooth movement in which the movement distance is short and the movement paths of the units do not intersect.

  The replacement may be performed when the change in direction (direction change) before and after the movement is greater than or equal to a predetermined angle.

  If there are multiple units whose positions can be changed in the group, the positions are changed based on the distance between the position of each unit before movement and the position after movement corresponding to the positions that each unit can take. May be performed.

  For example, as shown in FIG. 21A, the unit b3 before the movement is located at the position P3 (see 450), but takes the position P3 (see 460) or the position P4 (see 470) as the position after the movement. It is possible. In such a case, the distance L1 from the position P3 (see 450) before the movement to the position P3 (see 460) after the movement and the position P3 (see 450) before the movement to the position P4 (see 470) after the movement. It is also possible to compare the distance L2 and determine the movement position based on the comparison result. Here, since L1> L2, the moved position P4 corresponding to L2 having a short distance may be determined as the moved position of the unit b3.

  Further, for example, as shown in FIG. 21B, the unit b4 before the movement is located at the position P4 (see 440), but the position P3 (see 460) or the position P4 (see 470) is the position after the movement. It is possible to take. In such a case, the distance L3 from the position P4 before movement (see 440) to the position P3 after movement (see 460) and the position P4 before movement (see 440) to the position P4 after movement (see 470). And the moving position may be determined based on the comparison result. Here, since L4> L3, the position P3 after movement corresponding to L3 having a short distance may be determined as the position after movement of the unit b4.

  FIGS. 24A to 24C are diagrams for explaining the replacement target specifying information of the present embodiment.

  The replacement target specifying information is information regarding at least one of a replaceable unit and a replaceable position. A plurality of unit groups that are set in such a manner that the replacement target specifying information is stored in the storage unit of the system as table information or as a part of a program, and positions can be switched based on the replacement target specifying information stored in the storage unit You may perform the replacement process of the position after moving.

  For example, as shown in FIG. 24A, four positions 510-1 to 510-4 are set for a group including four units (unit IDs b1, b2, b3, and b4). Assume that the position ID of each position is P1, P2, P3, and P4. Here, it is assumed that the unit b1 (unit ID is b1) can be obtained only at the position 510-1, the unit b2 (unit ID is b2) can be obtained only at the position 510-2, the unit b3 (unit ID is b3), the unit b4 (unit When the ID is b4), both the position 510-3 and the position 510-4 can be used, and the positions can be switched (that is, the unit b3 and the unit b4 are a group of units whose positions can be switched). To do.

  In such a case, for example, as shown in FIG. 24B, unit specifying information (for example, unit ID 530) for specifying a unit that can be arranged corresponding to each position (for example, corresponding to position ID 520 of each position). May be stored. Note that the priority order 540 may be set for the positions P3 and P4 that are set to be interchangeable (see 542).

  Further, for example, as shown in FIG. 24C, position specifying information (for example, position ID 560) for specifying possible positions may be stored in association with each unit (for example, corresponding to the unit ID 550 of each unit). good. Note that the priority order 560 may be set for the units b3 and b4 that are set so that the positions can be exchanged (see 562).

  In addition, when there are multiple units (units) whose positions can be switched in the fleet (group), the positions after replacement are determined in order from the unit (unit) with the highest priority according to a predetermined priority. May be. Here, the priority order may be set in advance for the unit, for example. Further, it may be set in advance for the position. The priority order may be determined according to a predetermined parameter set for the object.

  When priority is set for a unit, for example, when a plurality of units b1, b2, b3,... Bn have a high priority in this order, first, all units b1 up to all possible positions after moving The distance may be calculated and the position with the shortest distance may be determined as the position after movement. For the next highest priority unit b2, calculate the distance from all the positions that unit b2 can take after moving to all the positions excluding the positions already determined as the positions of other units. May be determined as the post-movement position.

  If a priority is set for a position, for example, for a position with a high priority, all units that can take this position after the movement are calculated for the distance before the movement. The unit with the shortest may be selected and assigned to that position.

  If there are multiple units (units) whose positions can be switched in the group, calculate the total distance before and after the movement of each unit for each pattern of the combination before and after the movement for multiple units that can be replaced. The positions may be switched based on the composite distance.

  22A and 22B are diagrams for explaining combinations of position changes before and after movement. In a fleet consisting of six units as shown in FIG. 22 (A), positions P5, P2, and P6 are interchangeable positions, and units that can take positions P5, P2, and P6 are b5, b2, and b6. And Before the movement, as shown in FIG. 22A, the unit b5 is positioned at the position P5, the unit b2 is positioned at the position P2, and the unit b6 is positioned at the position P6. In this case, as shown in FIG. 21B, there are six combinations of units that may come to each position after movement. Accordingly, the straight movement distance of each unit b5, b2, b6 in these six cases may be obtained, and the position of the unit after movement may be determined based on the total (the unit moves according to the combination with the smallest total) May be controlled as well).

  FIG. 23 is a flowchart for explaining unit position exchange processing before and after group movement according to the present embodiment.

  When the target position and direction of the movement destination of the fleet (group) are designated, the following steps S20 to S50 are performed (step S10).

First, the position coordinates (position coordinates in the world coordinate system) of each position constituting the formation after movement are calculated based on the target position and orientation of the movement destination (group) and the formation information of the fleet (group) (step S20).
Next, if there are multiple units (units) whose positions can be switched in the fleet (group), the position of each unit (unit) before movement and the multiple positions that each unit (unit) can take are supported. Based on the distance from the position after movement, the position of each unit (unit) after movement is determined (step S30).

  For example, for the multiple placement patterns of units that can be placed at each position in the formation that can be taken as the placement pattern of the formation after movement, the total of the linear movement distance of each unit is calculated, and the total of the linear movement distance is the smallest An arrangement pattern may be selected, and the position after movement of each unit may be determined according to the arrangement pattern. When there are a plurality of units whose positions can be changed in the formation, the arrangement pattern after movement can take a plurality of arrangement patterns including the arrangement pattern before movement. The position of each unit corresponding to the arrangement pattern before movement is calculated, and the position of each unit corresponding to each arrangement pattern after movement is calculated. And the distance of the position before and after the movement of each unit may be obtained, and this may be used as the linear movement distance of each unit.

  Next, according to the determined position of each unit, a unit target position of each unit to be moved is determined (step S40).

  Next, control is performed to move according to the movement characteristics of each unit aiming at the unit target position determined for each unit (step S50).

  In step S30, when the smallest total linear movement distance of each unit is different from the arrangement pattern before the movement, the positions of the units (units) are switched before and after the movement.

8). Position Replacement Processing for Damaged Moving Object FIGS. 14 and 15 are diagrams for explaining position replacement processing for a moving object according to this embodiment.

In the present embodiment, ships (moving objects) belonging to a unit (unit) are arranged at each position constituting a predetermined arrangement pattern and constitute a unit row.
When a unit (unit) that is a set of ships (moving objects) is stationary, the ship is positioned at a given position, and a unit (unit) that is a set of ships (moving objects) moves The position after the movement corresponding to the given position is moved as the ship target position.

  Each position information constituting the predetermined arrangement pattern is defined as coordinates of the arrangement position in the unit local coordinate system, for example, similarly to the unit position information described above with reference to FIGS. A definition table such as coordinates of positions in the coordinate system may be provided.

  FIG. 27 is a diagram showing an example of position information of a ship (moving object).

  A configuration may be adopted in which position information 640 of each ship is held as the position information of each ship. The position information 640 of each ship may store the position ID 660 in the unit in which each ship is arranged in correspondence with the ship ID 650 of each ship. When a position change occurs due to damage received by a given ship, the position ID 660 in the unit corresponding to the ship ID 6650 of the ship to be changed is updated to the contents after the change.

  In this way, by giving position information 640 of each ship as shown in FIG. 27 as position information, and a table ID of a position definition table in the unit defining each position information of units constituting a predetermined arrangement pattern, The position of the ship can be specified from the position information, and the relative position coordinates in the unit corresponding to the specified position can be acquired from the unit position definition table. Based on the acquired relative position coordinates in the unit and the position coordinates of the unit in the world coordinate system, the position coordinates of each moving object in the world coordinate system can be obtained.

  In the present embodiment, it is determined whether or not each moving object satisfies the position movement condition based on a predetermined parameter set for each moving object, and when it is determined that the position movement condition is satisfied, A position exchange process is performed for another moving object that belongs to the same unit and that is to be exchanged and the moving object. For example, when the positions of the moving object (ship) 580 and the moving object (ship) 590 belonging to the same unit 570 are replaced, as shown in FIG. 15, the moving object (ship) 580 The object (ship) 590 moves to the position where the object is located, and the current moving object (ship) 590 moves to the position where the current object (ship) 580 is located.

  As a predetermined parameter, a durability parameter indicating the magnitude of the durability of each object, a fitness parameter indicating the magnitude of the physical strength of each object, or a life value parameter indicating the number of lives of each object may be used.

  Control may be performed to change the value of a predetermined parameter associated with each object in accordance with the damage received by each object. For example, when each object is damaged, the value of a predetermined parameter decreases or increases according to the number of damages received and the magnitude of the damage, and finally reaches a predetermined disappearance reference value (for example, 0), The object may be treated as extinguished.

  For example, a durability parameter (predetermined parameter) is set for each ship (moving object), and a durability value of 100 points is initially given. When a bullet penetrates the ship (a bullet hits the ship and If the set shield is broken), the ship's durability parameter is controlled to decrease by 10 points. When the durability parameter falls below a predetermined disappearance reference value (eg, 0), the durability The moving object corresponding to the parameter may be destroyed (disappeared).

  In addition, when it is determined that the given moving object satisfies the position movement condition, another object that is the target of replacement of the moving object located at the position serving as the retreat area with respect to the position where the given object is located. As described above, the object position replacement process may be performed.

  FIGS. 14A and 14B are views showing the relationship between the placement positions P1 to P16 of the ships (moving objects) in the unit (unit) and the ships K1 to K15 arranged at the respective placement positions. FIGS. 25A and 25B are diagrams for explaining a retreat area corresponding to each position.

  When the ships K1 to K15 constituting the unit are located at positions as shown in FIG. 14A, the outermost positions (P16, P15, P12, P8, P10, P14, P11, P9, Ships (K16, K15, K12, K8, K10, K14, K11, K9, K13) located in P13) are easily damaged by the impact, and the inner positions (P6, P2, P4, P5, P3, P7, P1) ) (K6, K2, K4, K5, K3, K7, K1) located at) are not easily damaged by the hit. Therefore, it can be said that the position positioned on the inner side is more secure than the position positioned on the outer side.

Here, when the ship K16, which is located at the outer position P16 and the durability parameter is currently 60 points, is attacked and the bullet penetrates, the durability parameter of the ship K16 is reduced by 10 points to 50 points. When the position movement condition is that the durability parameter is 50 points or less, the position is switched between the ship K16 and another ship (the ship located in the retreat area of the position P16).
Here, assuming that the retreat area of position P16 is position P7, the positions are switched between ship K7 and ship K16 located at position P7, and as shown in FIG. 14B, ship K15 is located at position P7. Then, the ship moves so that the ship K6 is located at the position P15.

  By setting a safer position than the given position as the evacuation area for the given position, it is possible to move the damaged ship to a more secure position (for example, a position where it is difficult to hit). Instead, ships that were located in a safer evacuation area (ships that have not suffered too much damage, so the durability parameter value has not decreased) will come to the outside. Even if you hit the bullet and the bullet penetrates, it will not sink immediately. The value of the durability parameter may be set so as to recover under a predetermined condition. For example, the durability parameter value may be restored when a predetermined time elapses or the bullet is not hit or penetrated for a predetermined time. If it does in this way, it will become easy to recover the durability of the ship evacuated to the evacuation area.

  For example, each position that constitutes a unit is associated with a value indicating safety as shown in FIG. 25A, and a position with higher safety than a given position is selected based on the value indicating safety. In addition, position replacement processing may be performed as a save area for a given position.

  Further, the correspondence between each position and the retreat area may be set in advance as a retreat area table 510 as shown in FIG. The retreat area table 510 may store a retreat area position 530 set for each position (here, positions P16 to P8) in association with each other.

  In this way, it is possible to determine the moving object to be replaced with reference to the save area table.

  The retreat area for a given position may be a position closer to the center of the unit or a rearward position.

  Further, the retreat area for a given position may be a position where the moving distance from the given position is the shortest or shorter than a predetermined reference.

  The timing for performing the replacement movement may be when the ship (moving object) is damaged and the durability parameter of the ship (moving object) is below a predetermined reference value. Here, the predetermined reference value may be set for each ship (moving object), for example, or may be set for each unit (unit) or fleet (group) to which the ship (moving object) belongs. It may be a value calculated dynamically (in real time) using the parameter values set for each unit (unit) or fleet (group) to which the ship (moving object) or ship (moving object) belongs. Alternatively, for example, a value calculated dynamically (in real time) using an attribute parameter of the commander of the fleet (group) (this embodiment is a parameter set for each fleet) may be used.

  Further, the presence / absence of position change may be determined using conditions with different position change criteria according to the commander's character associated with each moving object (here, a ship). Depending on each commander character, the value of the durability parameter (replacement reference value), which becomes the position replacement condition, may be different.

  For example, when the ability of the commander's character is high (the squadron ability / command is high), the replacement reference value may be set higher and the replacement may be performed even when the durability parameter is large.

  In this embodiment, since it is easy to hit the ship in front of the unit during the battle, damage will be received from the ship in front of the unit, but the commander character's ability parameter is high (the squadron ability / command is high) ), Since even if the durability parameter is large, the replacement is performed, the damage in the unit is distributed to each ship, making it difficult to annihilate.

  For example, if the ratio of the replacement reference value is set so that the replacement reference value is 50 points when the commander character is S1 and the replacement reference value is 70 points when the commander character is S2, the commander Depending on the character, the fleet with the commander in the S2 fleet will be replaced more frequently than the fleet in the S1 commander.

  For an object that is not in the extinguished state, at least a part of the object that is decreased or increased in accordance with the damage may be restored to the state before the damage (under a predetermined condition).

  For example, the setting may be such that the durability is recovered after a predetermined time has elapsed, or the durability is recovered if the bullet is not hit for a predetermined period. In this way, since the ship's sinking rate is lower when the replacement frequency of the ship is higher, the defense force is higher in the fleet in which the commander is in the S2 than in the fleet in the S1. In this way, a game system can be provided in which the width of the game is widened and it is difficult to get tired by using conditions with different criteria for changing positions depending on the character of the commander.

  FIG. 30 is a flowchart for explaining the position switching process of a moving object that has received damage according to the present embodiment.

  For example, the following processing is performed for each ship (object) existing in the object space every frame.

  First, it is determined whether each ship (object) has been damaged (step S110). If the ship has been damaged, the durability parameter of each object is changed according to the damage (step S120). Here, for example, it may be determined that damage has been received when the hit check result of each ship is successful, and when the shield of each ship is broken (when a bullet that has been hit penetrates). When damage is received, control is performed to decrease the durability parameter.

  When each ship is damaged, it is determined whether or not the durability parameter of each object is less than or equal to the disappearance reference value due to a change in durability due to damage (step S130). Performs the disappearance process of each object (step S140). Perform extinction processing for each object. As the annihilation process, a process of setting the annihilation flag (see 862 in FIG. 29C) associated with each object to a value indicating annihilation (eg, “1” on) may be performed. While the disappearance flag is OFF (for example, “0”), the durability parameter can be recovered under a predetermined condition. However, when the disappearance flag is turned on, the durability parameter may not be recovered.

  If it is not less than the disappearance reference value, it is determined whether the durability parameter of each object is less than the replacement reference value (step S150). The replacement reference value of each ship may be set to a different value depending on the character of the commander corresponding to each ship (the commander of the fleet to which the unit to which each ship belongs).

  If it is less than the replacement reference value, the replacement target ship (object) belonging to the same unit (unit) is determined (step S160), and the position information of the ship to be replaced with the ship is replaced. Control to move to the position corresponding to the replaced position information is performed (step S170). For example, as described with reference to FIGS. 25A and 25B, the ships (objects) to be replaced belonging to the same unit (unit) may be ships that are located in the evacuation area by examining the evacuation area of each fleet. .

9. Volume Image Object Display Control Processing FIGS. 16A and 16B are diagrams for explaining the volume image object display control processing of the present embodiment.

  Based on the position information of the objects (here, the ships) constituting the unit (here, the unit), the volume image objects 900-1 and 900-2 that image the outer edge or volume of the unit (here, the unit) may be displayed. .

  The volume image objects 900-1 and 900-2 are virtual objects for visualizing the outlines of the ships constituting the unit, and may be, for example, translucent solid objects so that the ships constituting the unit can be seen.

  For example, a plurality of vertices of the outer edges of the volume image objects 900-1 and 900-2 are determined based on the position coordinates of the outermost ship among the ships constituting the unit, and a three-dimensional image passing through the determined vertices is generated. The volume image objects 900-1 and 900-2 may be displayed.

  As shown in FIGS. 16A and 16B, the shape of the volume image objects 900-1 and 900-2 also changes when the arrangement state of the ship (the arrangement pattern and the number of arrangements of the ships) changes.

  In a game system in which a battle is performed with such a large number of objects, shelling and hitting are repeated with a large number of objects (here, ships), and it is difficult to grasp the state change of all objects (here, ships). However, in the present embodiment, the results of changes in the position and state of each ship can be grasped as changes in the shape of the volume image object, so that the state of the fleet that changes every moment can be grasped visually.

  As shown in FIG. 17, the volume image object 900-A of the friendly fleet GR3 and the volume image object 900-B of the enemy fleet GR4 may have different display modes (for example, colors). This makes it easier to grasp the status of enemy fleets.

10. Hardware Configuration FIG. 30 shows an example of a hardware configuration capable of realizing this embodiment. The main processor 900 operates based on a program stored in a CD 982 (information storage medium), a program downloaded via the communication interface 990, a program stored in the ROM 950, or the like, and includes game processing, image processing, sound processing, and the like. Execute. The coprocessor 902 assists the processing of the main processor 900, and executes matrix operation (vector operation) at high speed. For example, when a matrix calculation process is required for a physical simulation for moving or moving an object, a program operating on the main processor 900 instructs (requests) the process to the coprocessor 902.

  The geometry processor 904 performs geometry processing such as coordinate conversion, perspective conversion, light source calculation, and curved surface generation based on an instruction from a program operating on the main processor 900, and executes matrix calculation at high speed. The data decompression processor 906 performs decoding processing of compressed image data and sound data, and accelerates the decoding processing of the main processor 900. Thereby, a moving image compressed by the MPEG method or the like can be displayed on the opening screen or the game screen.

  The drawing processor 910 executes drawing (rendering) processing of an object composed of primitive surfaces such as polygons and curved surfaces. When drawing an object, the main processor 900 uses the DMA controller 970 to pass the drawing data to the drawing processor 910 and, if necessary, transfers the texture to the texture storage unit 924. Then, the drawing processor 910 draws the object in the frame buffer 922 while performing hidden surface removal using a Z buffer or the like based on the drawing data and texture. The drawing processor 910 also performs α blending (translucent processing), depth cueing, mip mapping, fog processing, bilinear filtering, trilinear filtering, anti-aliasing, shading processing, and the like. When an image for one frame is written in the frame buffer 922, the image is displayed on the display 912.

  The sound processor 930 includes a multi-channel ADPCM sound source and the like, generates game sounds such as BGM, sound effects, and sounds, and outputs them through the speaker 932. Data from the game controller 942 and the memory card 944 is input via the serial interface 940.

  The ROM 950 stores system programs and the like. In the case of an arcade game system, the ROM 950 functions as an information storage medium, and various programs are stored in the ROM 950. A hard disk may be used instead of the ROM 950. The RAM 960 is a work area for various processors. The DMA controller 970 controls DMA transfer between the processor and the memory. The CD drive 980 accesses a CD 982 in which programs, image data, sound data, and the like are stored. The communication interface 990 performs data transfer with the outside via a network (communication line, high-speed serial bus).

  The processing of each unit (each unit) in this embodiment may be realized entirely by hardware, or may be realized by a program stored in an information storage medium or a program distributed via a communication interface. May be. Alternatively, it may be realized by both hardware and a program.

  When the processing of each unit of this embodiment is realized by both hardware and a program, a program for causing the hardware (computer) to function as each unit of this embodiment is stored in the information storage medium. . More specifically, the program instructs the processors 902, 904, 906, 910, and 930, which are hardware, and passes data if necessary. Each processor 902, 904, 906, 910, 930 realizes the processing of each unit of the present invention based on the instruction and the passed data.

  The present invention is not limited to the one described in the above embodiment, and various modifications can be made. For example, terms (frame buffer / work buffer, α value, lookup table, etc.) cited as broad or synonymous terms (drawing area, pixel value, conversion table, etc.) in the description or drawings are not Alternatively, in other descriptions in the drawings, terms can be replaced with broad or synonymous terms.

  Further, the configuration of groups, units, objects, and movement control techniques are not limited to those described in the present embodiment, and techniques equivalent to these are also included in the scope of the present invention.

  Further, in the position exchange process during movement according to the above embodiment, the case where the unit is configured as a set of a plurality of moving objects has been described as an example, but the present invention is not limited thereto. For example, the unit may be composed of one moving object.

  Moreover, although the said embodiment demonstrated taking the case of the battle game of the several space fleet in outer space as an example, it is not restricted to this, It can apply to various games.

  The present invention also relates to various image generation systems such as a business game system, a home game system, a large attraction system in which a large number of players participate, a simulator, a multimedia terminal, a system board for generating game images, and a mobile phone. Applicable.

The example of a functional block diagram of the image generation system of this embodiment. The figure for demonstrating the outline | summary of the game system of this embodiment. It is an example (fleet) of the game image of this Embodiment. It is an example (unit) of the game image of this Embodiment. The figure which shows the formation which a fleet can take in this Embodiment. The figure which shows the formation which a fleet can take in this Embodiment. The figure which shows the formation which a fleet can take in this Embodiment. The figure which shows the formation which a fleet can take in this Embodiment. The figure which shows the formation which a fleet can take in this Embodiment. The figure which shows the formation which a fleet can take in this Embodiment. 11A to 11E are diagrams for explaining a formation setting method. FIGS. 12A and 12B are diagrams for explaining replacement of positions during movement according to the present embodiment. The figure for demonstrating the replacement of the position at the time of the movement of this Embodiment. The figure for demonstrating the position exchange process of the moving body object of this embodiment. The figure for demonstrating the position exchange process of the moving body object of this embodiment. FIGS. 16A and 16B are views for explaining the display control processing of the volume image object according to the present embodiment. FIGS. 16A and 16B are views for explaining the display control processing of the volume image object according to the present embodiment. The figure which shows an example of the position definition table in a fleet. FIGS. 19A and 19B are diagrams for explaining a case in which a horizontal arrangement pattern is defined on the xz plane of the fleet's local coordinate system. The figure for demonstrating the replacement of the position at the time of the movement of this Embodiment. The figure for demonstrating the replacement of the position at the time of the movement of this Embodiment. The figure for demonstrating the replacement of the position at the time of the movement of this Embodiment. The flowchart for demonstrating the replacement of the position at the time of the movement of this Embodiment. FIGS. 24A to 24C are diagrams for explaining the replacement target specifying information of the present embodiment. FIGS. 25A and 25B are diagrams for explaining a retreat area corresponding to each position. It is a figure which shows an example of the positional information on a unit. The figure which shows an example of the positional information on a ship (moving body object). FIGS. 28A and 28C are examples of a definition table that defines the relationship between a fleet, a unit, and a ship according to this embodiment. FIGS. 29A to 29C are diagrams for describing an example of parameters set in association with each fleet, each unit, and each ship according to the present embodiment. It is a flowchart figure for demonstrating the position replacement process of the moving body object which received the damage of this Embodiment. Hardware configuration example.

Explanation of symbols

100 processing unit, 110 image generation unit, 112 object space setting unit, 113 drawing unit, 114 virtual camera control unit, 120 movement / motion control unit, 122 group movement control unit, 124 unit movement control unit, 126 object movement control unit, 140 game processing unit, 142 formation setting unit, 144 parameter calculation unit, 146 parameter display object display control unit, 148 volume image object display control unit, 160 operation unit, 170 storage unit, 180 information storage medium, 190 display unit, 192 sound Output unit, 196 communication unit

Claims (14)

A program for generating an image visible from a virtual camera in an object space,
A group movement control unit that calculates group movement control information for controlling movement of a group that is a set of a plurality of units;
A unit movement control unit that calculates unit movement control information for controlling movement of each unit based on the group movement control information and position information indicating an arrangement position of each unit in the group;
Arranging a plurality of units in the object space based on the unit movement control information, and causing the computer to function as an image generation unit that generates an image of the object space viewed from a virtual camera,
The unit movement control unit
When a predetermined movement event occurs, including a unit position replacement processing unit that performs a position replacement process after movement for a plurality of units in the group,
A program for calculating unit movement control information for moving to a movement position corresponding to a position after replacement. In claim 1,
The unit position replacement processing unit
A program for performing position exchange processing after movement for a unit group set to be capable of position exchange. In any one of Claims 1 thru | or 2.
The unit position replacement processing unit
When a given unit can take a plurality of positions, the position after movement corresponding to the plurality of positions that the given unit can take is obtained based on the position, and the position and position of the given unit before the movement are obtained. A program for determining a post-movement position of a given unit based on a distance from the post-movement position corresponding to a plurality of positions that the given unit can take. In any one of Claims 1 thru | or 3,
The unit position replacement processing unit
When there are a plurality of units whose positions can be changed in the group, the position after movement is determined in order from the unit with the highest priority according to the priority set for the plurality of units. Program to do. In any one of Claims 1 thru | or 4,
The unit position replacement processing unit
If there are multiple positions in the group where the units that can be replaced exist, the positions are arranged after moving in order from the highest priority position according to the priority order set for the multiple positions that can be replaced. A program characterized by determining a unit. In any one of Claims 1 thru | or 5,
The unit position replacement processing unit
If there are multiple correspondences between the position and unit after movement, the correspondence between the position and unit after movement is determined based on the total expected movement distance of each replaceable unit in each correspondence, and the determined correspondence A program for determining a unit to be arranged at each position after movement according to a relationship. In any one of Claims 1 thru | or 6.
The unit movement control unit
For a plurality of formations that can be set for each group, formation information that is information related to the arrangement pattern of positions in each formation is stored, and formation information that is stored in association with the formation set for each group A program for determining an arrangement position of each unit in a group based on the above. In claim 7,
The unit movement control unit
A program characterized in that, when a value of a predetermined parameter that can be associated with each group satisfies a predetermined condition, an arrangement position of each unit in the group is determined according to a formation set for each group. In any of claims 7 to 8,
A program further comprising a formation setting section for setting a formation for each group based on the commander information set in association with each group. In any one of Claims 1 thru | or 9,
The group movement control unit
Based on the operation input information, the target movement position of the group is determined, group movement control information for moving the group to the target movement position is calculated,
The unit movement control unit is
Based on the target movement position of the group to which each unit belongs and the position information of each unit in the group, the target movement position of each unit is determined, and unit movement control information for moving each unit to the target movement position is calculated. The program characterized by doing. In any one of Claims 1 thru | or 10.
An object movement control unit for calculating object movement control information for controlling movement of each object based on the unit movement control information and position information indicating the arrangement position of each object in the unit;
The unit controller is
Calculate unit movement control information for controlling movement of a unit that is a set of objects,
The image generation unit
A program that arranges a plurality of objects in an object space based on the object movement control information and generates an image of the object space viewed from a virtual camera. In claim 11,
The object movement control unit
Based on the target movement position of the unit to which each object belongs and the position information of each object in the unit, the target movement position of each object is determined, and object movement control information for moving each object to the target movement position is calculated. The program characterized by doing.   A computer-readable information storage medium, wherein the program according to any one of claims 1 to 12 is stored. An image generation system for generating an image visible from a virtual camera in an object space,
A group movement control unit that calculates group movement control information for controlling movement of a group that is a set of a plurality of units;
A unit movement control unit that calculates unit movement control information for controlling movement of each unit based on the group movement control information and position information indicating an arrangement position of each unit in the group;
An image generation unit that arranges a plurality of units in the object space based on the unit movement control information and generates an image of the object space viewed from a virtual camera, and
The unit movement control unit
When a predetermined movement event occurs, including a unit position replacement processing unit that performs a position replacement process after movement for a plurality of units in the group,
An image generation system for calculating unit movement control information for moving to a movement position corresponding to a position after replacement.

Images