JP3853821B2 - Game program and game device capable of expressing dirt in room - Google Patents

Description

    The present invention relates to a game program and a game apparatus that can express the aging of a room set in a three-dimensional virtual space.

Conventionally, in order to express a state in which a room set in a three-dimensional virtual space is dirty with time, a large number of room objects displaying various levels of dirt are prepared, and As time passed, these objects were arranged and expressed in the form of sequential exchange in a three-dimensional virtual space. As prior art documents, there are the following.
Japanese Patent No. 2846252

    In order to express the state in which a room is gradually soiled, it is necessary to prepare objects in a number of rooms with different degrees of dirt, which is troublesome and requires a lot of space to store such objects. There was an inconvenience that required more memory capacity.

    In addition, when further placing objects such as furniture in such a room, it is necessary to prepare more objects according to the degree of dirt on the furniture separately from the objects in the room. As a result, the memory capacity for storing is increasing.

    In view of the above-described circumstances, the present invention can finely express the progress of dirt over time in a room, and it is not necessary to prepare a large number of objects according to the degree of dirt. An object of the present invention is to provide a game program and a game apparatus that can be reduced in number.

According to the first aspect of the present invention, the computer (16) is generated in the memory (3) with the first layer (33B) to which the room picture (35) showing the scene inside the room is mapped in the memory (3). A game program for placing an object in a three-dimensional virtual space, rendering the layer with a virtual camera (37) to generate a room image, and functioning as a means for displaying on a monitor (9),
The game program (GPR) further includes the computer,
Together with the first layer, a second layer (33A) mapped with a dirt picture (36) representing the dirt of the room is seen from the virtual camera side behind the first layer. Layer placement means for placing in a three-dimensional virtual space;
A first elapsed time counting means for measuring a time elapsed in the game as a first elapsed time (T) and storing it in the memory means ;
A third layer in which a picture of furniture is mapped to the virtual camera side of the first layer in the three-dimensional virtual space during the measurement of the first elapsed time by the first elapsed time measuring means; The fourth layer on which the dirt picture representing the dirt of the furniture displayed on the third layer is mapped, and the rear side of the fourth layer viewed from the virtual camera side with respect to the third layer. Furniture layer arrangement means arranged in a three-dimensional virtual space;
A second elapsed time after the third layer is arranged, time elapsed in the game, separately from the first elapsed time, and stored in the memory means as a second elapsed time Timekeeping means,
According to the first elapsed time stored in the memory means, the transparency of the first layer is set to a value of transparency according to the first elapsed time in the direction in which the transparency increases. First transparency calculating means for calculating and storing the result in the memory means ;
First layer transparency control means for calculating and controlling the transparency of the first layer based on the transparency stored in the memory;
According to the second elapsed time, the transparency of the third layer is calculated in a direction in which the transparency increases, and the transparency value according to the second elapsed time is calculated, and the result is calculated. Second transparency calculating means stored in the memory means;
A second layer transparency control means for calculating and controlling the transparency of the third layer based on the transparency calculated and stored by the second transparency calculation procedure;
The first layer, the second layer corresponding to the first layer , the third layer, and the fourth layer corresponding to the third layer are rendered by a virtual camera, and a room and the Room image generation means for generating an image (PC1) of furniture carried into the room and displaying it on a monitor;
It is a game program for functioning as a room, and it is possible to express how the dirt in the room and the dirt in the furniture newly brought into the room progress in different ways, respectively. Configured as a feature.

According to a second aspect of the present invention, the game program further includes the computer ,
When a command for cleaning the room displayed on the monitor is input via the input means (12), the transparency value of the first layer stored in the memory means is reset to an opaque state. First transparency resetting means ,
Is a game program for functioning as a feature.

According to a third aspect of the present invention, in the first aspect of the present invention, the game program further includes the computer ,
A second layer transparency value stored in the memory is reset to an opaque state when a command for cleaning the room displayed on the monitor is input via the input means; Transparency resetting means ,
Is a game program for functioning as a feature.

According to a fourth aspect of the present invention, in the first aspect , the game program further includes the computer ,
When a command for cleaning the room displayed on the monitor is input through the input unit, the transparency values of the first and third layers stored in the memory unit are reset to an opaque state. Third transparency resetting means ,
Is a game program for functioning as a feature.

According to a fifth aspect of the invention, in the fourth aspect of the invention, the game program further includes the computer .
After the third layer is arranged, when the first command for commanding the cleaning of the room displayed on the monitor is input via the input means, the second elapsed time counting procedure is used. Time counting stop means to stop counting elapsed time,
After the transparency values of the first and third layers are reset by the third transparency resetting means , the transparency of the first and third layers is managed by the first elapsed time counting means. A transparency management means for controlling based on the first elapsed time to be timed;
According to the first elapsed time stored in the memory means, the transparency of the first and third layers is set in the direction in which the transparency increases, and the transparency value according to the first elapsed time. A third transparency calculating means for calculating the result so that the result is stored in the memory means ;
Third layer transparency control means for performing arithmetic control to change the transparency of the first and third layers based on the transparency stored in the memory;
Is a game program for functioning as a feature.

The invention of claim 6 is an invention of a game device, wherein a first layer to which a room picture showing a scene inside a room is mapped is objected to a three-dimensional virtual space generated in a memory. A game device that can be placed, rendered with a virtual camera to generate an image of a room, and displayed on a monitor;
The game device includes:
Together with the first layer, a second layer in which a dirt picture representing the dirt of the room is mapped is located in the three-dimensional virtual space behind the first layer as viewed from the virtual camera side. Layer placement means to place,
A first elapsed time counting means for measuring the elapsed time in the game as a first elapsed time and storing it in the memory means;
A third layer in which a picture of furniture is mapped to the virtual camera side of the first layer in the three-dimensional virtual space during the measurement of the first elapsed time by the first elapsed time measuring means; The fourth layer on which the dirt picture representing the dirt of the furniture displayed on the third layer is mapped, and the rear side of the fourth layer viewed from the virtual camera side with respect to the third layer. Furniture layer arrangement means arranged in a three-dimensional virtual space;
A second elapsed time after the third layer is arranged, time elapsed in the game, separately from the first elapsed time, and stored in the memory means as a second elapsed time Timekeeping means,
According to the first elapsed time stored in the memory means, the transparency of the first layer is set to a value of transparency according to the first elapsed time in the direction in which the transparency increases. First transparency calculating means for calculating and storing the result in the memory means;
First layer transparency control means for calculating and controlling the transparency of the first layer based on the transparency stored in the memory ;
According to the second elapsed time, the transparency of the third layer is calculated in a direction in which the transparency increases, and the transparency value according to the second elapsed time is calculated, and the result is calculated. Second transparency calculating means stored in the memory means;
A second layer transparency control means for calculating and controlling the transparency of the third layer based on the transparency calculated and stored by the second transparency calculation procedure;
The first layer, the second layer corresponding to the first layer , the third layer, and the fourth layer corresponding to the third layer are rendered by a virtual camera to obtain a room and the room Room image generation means for generating an image of furniture carried in and displaying it on a monitor;
It is characterized by the fact that the room and the furniture newly introduced into the room can be expressed on the monitor in such a way that the stains of the room and the furniture that are newly carried into the room are different from each other over time. .

According to the first and sixth aspects of the invention, the transparency of the first layer (33B) to which the room picture (35) is mapped is changed so as to increase in accordance with the first elapsed time (T) in the game. Thus, the dirty picture (36) representing the dirt of the room mapped to the second layer (33A) is rendered by the virtual camera (37). As a result, the state in which the room is gradually soiled with time can be expressed in detail by simply arranging the two layers as objects in the three-dimensional virtual space. In addition, it is not necessary to prepare a large number of objects according to the degree of dirt, and therefore, a required memory capacity can be reduced.

Further, the state of the dirt of the furniture arranged in the room is also different from the first layer to which the room picture 35 is mapped by the third and fourth layers to which the furniture and the dirt are mapped, respectively. Can be expressed in detail according to the elapsed time TF.

    In addition, since the elapsed time in the game after the furniture is arranged in the room is measured by the second elapsed time TF different from the first elapsed time T, the transparency of the third layer is controlled. When a new piece of furniture is installed in a room that is already dirty (and purchased by a character in the game), it is possible to express different levels of dirt. Dirt can be expressed.

According to the invention of claim 2 , when the player commands cleaning, the transparency of the first layer (33B) to which the room picture (35) is mapped is reset to an opaque state. The picture (36) is not rendered on the virtual camera (37), and the room displayed on the monitor can be the image PC1 of the cleaned room with the dirt removed.

According to the invention of claim 3 , when the player commands cleaning, the transparency of the third layer (33D, 33F) to which the picture of the furniture (39) is mapped is reset to an opaque state. The dirty picture (36) of the layer is not rendered on the virtual camera (37), and the furniture displayed on the monitor is the image PC1 on which the cleaned furniture from which dirt has been removed is displayed. I can do it.

According to the invention of claim 4 , when the player instructs cleaning, both the first layer to which the room picture 35 is mapped and the third layer to which the picture of the furniture (39) is mapped are reset to an opaque state. So, by cleaning, the room and furniture can be expressed together.

According to the invention of claim 5 , between the time the furniture is installed (purchased) in the room and the first cleaning, the furniture and the dirt in the room proceed separately, and after the cleaning and the room and furniture are both clean, It is possible to express the state that the dirt of the room and furniture progresses in the same way, and it is possible to express natural everyday life.

    Note that the numbers in parentheses are for the sake of convenience indicating the corresponding elements in the drawings, and therefore the present description is not limited to the descriptions on the drawings.

    Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a control block diagram of a game machine to which the present invention is applied, FIG. 2 is a diagram illustrating an example of a room and furniture objects arranged in a three-dimensional virtual space, and FIG. 3 is displayed on a display. FIGS. 4 and 5 are diagrams showing a state in which a room is soiled with time. FIGS. 4 and 5 are diagrams illustrating a state in which furniture is disposed in the room illustrated in FIG. FIG. 7 is a flowchart showing an example of a procedure for expressing dirt when furniture is installed.

    As shown in FIG. 1, the game apparatus 20 executes a predetermined game in accordance with a game program such as an adventure game recorded on a ROM disk 15 as a recording medium. The game apparatus 20 includes a CPU 1 mainly composed of a microprocessor, a ROM (Read Only Memory) 2 and a RAM (Random Access Memory) 3, an image processing apparatus 4 and a sound processing apparatus as main storage devices for the CPU 1. 6, buffers 5 and 7 for these devices, and a ROM disk reader 8. In the ROM 2, an operating system is written as a program necessary for overall operation control of the game machine. In the RAM 3, a game program and data read from the ROM disk 15 as a storage medium are written as necessary. The image processing device 4 receives the image data from the CPU 1 and draws a game screen on the frame buffer 5, converts the drawn image data into a predetermined video reproduction signal, and outputs it to the monitor 9 at a predetermined timing. . The sound processing device 6 reproduces data such as voice and musical sound, sound source data, and the like read from the ROM disk 15 and recorded in the sound buffer 7 and outputs them from the speaker 10. The ROM disk reader 8 reads a program or data recorded on the ROM disk 15 in accordance with an instruction from the CPU 1 and outputs a signal corresponding to the read content. The ROM disk 15 stores programs and data necessary for game execution. The monitor 9 generally uses a home television receiver, and the speaker 10 generally uses a built-in speaker of the television receiver.

    Further, a communication control device 11 is connected to the CPU 1 via a bus 14, and a controller 12 and an auxiliary storage device 13 as input devices are detachably connected to the device 11 via appropriate connection ports. The controller 12 functions as an input device, and is provided with operation members such as operation keys for accepting operations by the player.

    An operation signal corresponding to an operation state of a plurality of operation members (not shown) provided in the controller 12 is output from the controller 12 at a constant period (for example, 1/60 seconds), and the CPU 2 is based on the operation signal. The operation state of the controller 12 is determined. A plurality of controllers 12 and auxiliary storage devices 13 can be connected to the communication control device 11 in parallel.

    In the above configuration, the other components excluding the monitor 9, the speaker 10, the controller 12, the ROM disk 15, and the auxiliary storage device 13 are integrally accommodated in a predetermined housing to constitute the game machine body 16. The game machine body 16 functions as a computer.

    Stored on the ROM disk 15 are game programs GPR such as sports games, action games, role-playing games, and adventure games in which the game progresses according to a predetermined scenario.

    In the game apparatus 20, when a predetermined initialization operation (for example, a power-on operation) is performed, the CPU 1 first executes a predetermined initialization process according to the program in the ROM 2. When initialization is completed, the CPU 1 starts reading the game program GPR stored on the ROM disk 15, and starts game processing according to the program. When the player performs a predetermined game start operation on the controller 12 which is an input device, the CPU 1 starts various processes necessary for executing the game according to the procedure of the game program GPR based on the instruction.

    Thereafter, the game apparatus 20 performs a predetermined process according to the read game program GPR, performs display control of an image displayed on the monitor 9, and performs progress control of a predetermined scenario.

    In the game device 20 having the above-described configuration, games of various genres can be played on the screen of the display 9 by loading the program recorded on the ROM disk 15 into the RAM 3 and executing it by the CPU 1.

  Note that, as an example of the computer that causes the game program according to the present invention to function, the game apparatus 20 as a home game machine has been described as an example. However, the game apparatus may be a so-called portable game machine, and further, a game It is not limited to a dedicated device, and may be a device capable of playing back general music and video recording media. The present invention is not limited to this, and as a computer, for example, a personal computer, a mobile phone, or the like, that is, a game program is made to function. Any one can be used.

  As long as various programs and various data constituting the game program GPR can be read out by the program function of the game program GPR, the storage mode is arbitrary, and as in the present embodiment, the game In addition to being stored in the ROM disk 15 together with the program GPR program, it is stored in an external memory means such as a server independent of the game machine 1, and the reading program provided in the game program GPR is used to You may comprise so that it may download to memory, such as RAM3, via a communication mediation means.

    A game based on the game program GPR is set as an adventure game. As shown in FIG. 2, the game program GPR creates a three-dimensional virtual space 31 in the RAM 3 via the CPU 1 by the field generation program FPP of the game program GPR. After setting, the room space 32 in which the character set in the game lives is set in the three-dimensional virtual space 31 as described later (step S1 in FIG. 6).

    In the game program GPR shown in FIG. 1, only the software elements related to the present invention constituting the game program GPR are described, and the game program GPR includes those other than those described in FIG. In addition, various programs and data necessary for executing a game using the game program GPR are stored.

    The game program GPR stores data about a room to be set in the three-dimensional virtual space 31 as a room data file RDF, and the field space 32 is stored in the room data file RDF by the field generation program FPP via the CPU 1. Data relating to the required layer 33 is read from the stored room data RMD, and the layer 33 is set and generated by placing it at a predetermined position in the three-dimensional virtual space 31.

    As shown in FIG. 2, in the three-dimensional virtual space 31, two layers 33A and 33B each formed from a plate polygon are parallel (not necessarily parallel) via the CPU 1 by the field generation program FPP. In the layer 33B, a room picture 35 having a wall, a door, a floor, a window and the like showing a scene inside the room is mapped as a texture on the layer 33B. A layer 33A is arranged behind the layer 33B in FIG. 2, that is, behind the virtual camera 37 (to be described later), and a dirty picture 36 representing the dirt of the room is mapped as a texture on the layer 33A. .

    The field generation program FPP leaves the alpha value indicating the transparency of the layer 33B to which the room picture 35 is mapped in an opaque state via the CPU 1, and the alpha value of the layer 33A to which the dirty picture 36 is mapped is also opaque. Leave it in a state.

    In this state, in the game program GPR, the scenario development program SDP develops the game scenario via the CPU 1, and the room space 32 set in the three-dimensional virtual space 31 based on the game scenario in the game. Is rendered by the virtual camera 37 in the direction of arrow A in FIG. 2, that is, from the side of the layer 33B where the room pictures 35 of the layers 33A and 33B arranged in parallel are arranged. The room space 32 rendered by the virtual camera 37 is generated and displayed on the monitor 9 as an image PC1 on the monitor 9 via the image processing device 4, the frame buffer 5, and the like, as shown in FIG.

    In this case, the layers 33A and 33B are arranged in the three-dimensional virtual space 31, and the alpha value of the layer 33B in which the room picture 35 is arranged is in an opaque state. Only the room picture 35 mapped to 33B is displayed, and a clean room is displayed on the monitor 9.

    The scenario development program SDP is displayed when the room picture 35 is first displayed on the monitor 9 as the image PC1 for the room dirt management program RSC constituting the game program GPR via the CPU 1 when the game is started. The subsequent elapsed time T is counted and commanded to be stored in a predetermined address position in the RAM 3. Note that the timing of starting the elapsed time T need not be strict, and can be started at an appropriate timing according to the development of the game scenario. That is, if the time elapsed in the game can be counted, the timing start time may be any time after the room image PC1 is first displayed on the monitor.

    In response to this, the room dirt management program RSC starts counting the elapsed time T in the game and storing it in the RAM 3 after the image PC1 of the room picture 35 is first displayed on the monitor 9 via the CPU 1. (Step S2 in FIG. 6). The room dirt management program RSC stores the alpha value (transparency) of the plate polygon that displays the transparency of the layer 33B on which the room picture 35 is arranged via the CPU 1 as a parameter at a predetermined address in the RAM 3. Yes. Then, the transparency value is calculated so as to become a value (alpha value) corresponding to the elapsed time T stored in the RAM 3 in the direction in which the transparency of the layer 33B gradually increases, and the result is stored in the RAM 3 The transparency value is updated and stored.

    On the other hand, the field generation program FPP associates the transparency of the layer 33B in which the room picture 35 arranged in the room space 32 is arranged with the updated value of the transparency of the layer 33B stored in the RAM 3 via the CPU 1. Then, an operation for changing the layer 33B in a direction in which the layer 33B gradually becomes transparent (transparency increases) (step S3 in FIG. 6). The transparency (alpha value) is set stepwise from, for example, an opaque state to a transparent state in 256 steps, and the transparency of the layer 33B can be finely changed according to the elapsed time T.

    Then, the image PC1 of the room space 32 rendered by the virtual camera 37 via the CPU 1 by the scenario development program SDP and displayed on the monitor 9 is opaque with the transparency of the layer 33B along with the elapsed time T by the field generation program FPP. Since the state gradually changes from the state to the transparent state, the layer 33A arranged behind the virtual camera 37 of the layer 33B to which the dirty picture 36 is mapped is gradually seen through the layer 33B. Will come.

    As a result, as shown in FIG. 3B, the image PC1 rendered through the virtual camera 37 is changed from the state in which only the room picture 35 is displayed to the dirty picture 36 mapped to the layer 33B. The image PC1 is displayed according to the transparency of 33B.

    Thus, when the elapsed time T passes a certain time, the value in the RAM 3 indicating the transparency of the layer 33B changes to a value at which the layer 33B is completely transparent, and is displayed on the monitor 9 accordingly. The image PC1 has a shape in which the layer 33A behind the layer 33B appears to be completely transparent, and the image PC1 rendered by the virtual camera 37 is a dirty picture mapped to the layer 33A as shown in FIG. 36 is displayed so as to completely overlap the room picture 35 of the layer 33B (furniture 39 will be described later). As a result, it is possible to easily express a state in which the room is gradually soiled as time progresses in the game.

    The scenario development program SDP is a parameter representing various abilities of the character set in the game program GPR as a resident of the room space 32 according to the value indicating the transparency of the layer 33B stored in the RAM 3, for example, a physical strength value, Change luck value, intelligence value, etc. Expresses how the character's ability changes depending on the dirt in the room.

    By the way, the scenario development program SDP outputs a predetermined command to the CPU 1 by the player operating the controller 12 which is an input means, and the image PC1 for the character set as a room resident in the game. Can instruct cleaning of the room displayed on the monitor 9. When the player commands cleaning of the room (step S4 in FIG. 6), the field generation program FPP resets the transparency value of the layer 33B stored in the RAM 3 via the CPU 1 to an opaque state (step S5 in FIG. 6). ). Then, the layer 33B changes from the transparent state corresponding to the transparency according to the elapsed time T until then to the opaque state, and the layer space 33 rendered by the virtual camera 37 cannot be seen from the layer 33A. As shown to (a), it displays on the monitor 9 as image PC1 of the beautiful state in which the first dirt picture 36 is not displayed.

    When the transparency of the layer 33B is reset to the opaque state, the elapsed time T, which has been timed via the CPU 1 by the dirt management program RSC, is reset again to zero (step S5 in FIG. 6). The elapsed time T is again counted from the state where the character has cleaned the room (step S6 in FIG. 6).

    Thus, in the image PC1 of the room space 32 displayed on the monitor 9, the dirty picture 36 is gradually displayed in the room according to the elapsed time from when the character cleaned the room. A state in which the room is dirty is expressed in the image PC1.

    Further, the scenario development program SDP performs an operation of purchasing furniture and the like and installing them in the room space 32 with respect to the characters in the game based on a command via the controller 12 of the player via the CPU 1. When such a furniture installation (purchase) command is input from the player via the controller 12 (step S10 in FIG. 7), the scenario development program SDP searches the room data file RDF and instructs the player to purchase. As shown in FIG. 2, the layer 33D in which the furniture is mapped on the board polygon as a texture and the data of the layer 33C in which the dirt picture 36 representing the dirt of the furniture corresponding to the layer 33D is displayed are read out. The layer 33B on which the room picture 35 is mapped is arranged at an appropriate coordinate position in the room space 32 on the virtual camera 37 side, that is, in front of FIG. 2 (step S11 in FIG. 7).

    At this time, the layer 33D on which the furniture is displayed is arranged on the near side of the layer 33C on which the dirty picture 36 is displayed, that is, on the virtual camera 37 side. At this time, the scenario development program SDP sets the transparency (alpha value) of each of the layers 33C and 33D to an opaque state via the CPU 1, and stores the value in the RAM 3 as a parameter. When the layer 33D on which the furniture is displayed and the layer 33C on which the corresponding dirt picture 36 is displayed are arranged in the room space 32 of the three-dimensional virtual space 31, the dirt management program RSC is newly installed via the CPU 1. From the time when the furniture is installed in the three-dimensional virtual space 31 until the next time the player instructs the room to be cleaned via the controller 12, the elapsed time in the game is set as the initial elapsed time TF. As shown in FIG. 7, the time is measured separately from the elapsed time T for the room space 32 (step S12 in FIG. 7).

    In the state in which the character in the game is first installed in the room space 32 according to the player's command, the room image PC1 rendered by the virtual camera 37 via the CPU 1 by the scenario development program SDP is shown in FIG. As shown in a), a new furniture 39 that is not yet dirty (not visible) is placed in a room in which a predetermined elapsed time T has passed and the dirty picture 36 of the layer 33A is displayed to some extent. It becomes an image. That is, at this time, the transparency of the furniture layer 33 </ b> D is in an opaque state, and the layer 33 </ b> C, which is arranged behind the layer 33 </ b> D of FIG. It cannot be seen from the side through the layer 33D, and dirt is not displayed on the image PC1.

    As a result, as shown in FIG. 4 (a), it is possible to represent a state in which new furniture without dirt is carried into a room in a somewhat dirty state after some time has passed since cleaning.

    On the other hand, the dirt management program RSC calculates the transparency value of the layer 33D in the direction of gradually becoming transparent according to the initial elapsed time FT via the CPU 1, and the transparency value of the layer 33D stored in the RAM 3 is calculated. The value of is updated and stored.

    In addition, the field generation program FPP makes the layer 33D gradually transparent by making the transparency of the layer 33D on which the furniture arranged in the room space 32 is displayed correspond to the updated value of the transparency of the layer 33D stored in the RAM 3. (Step S13 in FIG. 7). The transparency (alpha value) is set stepwise from, for example, an opaque state to a transparent state in 256 steps, and the transparency of the layer 33D can be finely changed according to the initial elapsed time FT.

    Then, the image PC1 of the room space 32 rendered by the virtual camera 37 via the CPU 1 by the scenario development program SDP and displayed on the monitor 9 has the transparency of the layer 33D and the initial elapsed time FT by the field generation program FPP. Since the layer gradually changes from the opaque state to the transparent state, the layer 33C arranged behind the virtual camera 37 of the layer 33D, to which the dirty picture 36 is mapped, gradually appears through the layer 33D. Will come.

    As a result, as shown in FIGS. 4A and 4B, the image PC1 rendered through the virtual camera 37 displays only the furniture 39 that has been displayed so far, and thus clean furniture that is not dirty. The dirty picture 36 mapped to the layer 33C is displayed according to the transparency of the layer 33D, that is, the image PC1 shows that the furniture is gradually dirty with the passage of time in the game. .

    The initial elapsed time TF is from the time when the cleaning command is input from the player immediately before, when the character immediately cleans the room in the game (at the start of the first game, the layer 33B to which the room picture 35 is mapped is displayed. Since the elapsed time T is measured by the virtual camera 37 and the elapsed time T from the time when the room image PC1 is first displayed on the monitor 9, and the initial elapsed time TF The transparency (alpha value) calculated and stored in the RAM 3 according to the elapsed time T is different between the transparency of the furniture layer 33D and the transparency of the layer 33B on which the room picture 35 is displayed.

    Then, the image PC1 of the room rendered by the virtual camera 37 and displayed on the monitor 9 transmits the layers 33A and 33C to which the rear dirty pictures 36 are mapped with different transparency of the layers 33B and 33D. As shown in FIGS. 4 (a) and 4 (b), the degree of soiling of the furniture and the room is expressed in different forms, and "the new furniture that is not soiled is held in a room that has passed some time since the previous cleaning. It is possible to reproduce in a natural way the ordinary situation that occurs when purchasing and installing furniture for daily life.

    The measurement of the initial elapsed time TF regarding the layer 33D to which the furniture 39 is mapped is displayed on the monitor 9 by the player via the controller 12 after the layer 33D is arranged in the room space 32 of the three-dimensional virtual space 31. It continues until the first cleaning command which commands cleaning of a room is output with respect to CPU1. Then, a first cleaning command is output from the player to the CPU 1 via the controller 12 (step S14 in FIG. 7), the furniture layer 33D is installed, and the first cleaning is performed on the room space 32 in the game. When the transparency of the layer 33B to which the room picture 35 is mapped is reset, the transparency of the furniture layer 33D is also reset and made opaque (step S15 in FIG. 7). As a result, the layers 33B and 33D are both opaque (transparency “0”), the image PC1 displayed on the monitor 9 is not displayed with the dirty picture 36, and the room and furniture are both cleaned. It can be expressed.

    After the furniture layer 33D is arranged in the room space 32, when a room cleaning command is first input from the controller 12 and the initial elapsed time TF is reset, the stain management program is subsequently applied to the furniture layer 33D. The counting of the initial elapsed time TF via the CPU 1 by the RSC is stopped. The dirt management program RSC uses the CPU 1 to set the transparency of the furniture layer 33D and the time until the character performs the next cleaning in the game in the same manner as the transparency of the layer 33B to which the room picture 35 is mapped. Is controlled so as to be managed by the elapsed time T (step S16 in FIG. 7). The dirt management program RSC stores layers 33B and 33D arranged in the room space 32 as target layers whose transparency (alpha value) should be managed by the elapsed time T in the RAM 3 via the CPU 1. Then, the dirt management program RSC starts measuring the elapsed time T from the time when the cleaning command is input to the CPU 1 from the player via the controller 12 via the CPU 1 or the appropriate time point thereafter, and the time is measured. The elapsed time T is stored in the RAM 3 as memory means. Then, the dirt management program RSC gradually changes the transparency of the layers stored as transparency management target layers from the opaque state to the transparent state according to the elapsed time T stored in the RAM 3 via the CPU 1. The calculation is performed in a changing manner, the transparency of each layer is stored in the RAM 3 as a parameter, and is updated as needed according to the elapsed time T as described above.

    As a result, once the room has been cleaned, the state of the furniture and the room proceeding at the same speed is expressed with the passage of time, so that the stain can be expressed in a natural manner.

    Further, the same applies when the player operates the controller 12 to instruct to purchase (install) new furniture 39 based on the scenario development program SDP, as shown in FIG. A layer 33E to which a dirty picture 36 corresponding to the layer 33F to which 39 is mapped is mapped at a predetermined position in the room space 32 of the three-dimensional virtual space 31. At this time, the layers 33E and 33F are set in an opaque state, and the values are stored in the RAM 3 as parameters. Thereafter, as shown in the flowchart of FIG. 7, the initial elapsed time TF is measured, and the newly installed furniture layer 33F is mapped to the already installed furniture layer 33D and the room picture 35. It becomes transparent gradually in a form independent of the change in transparency.

    As a result, as shown in FIGS. 5 (a) and 5 (b), some time has passed since cleaning, and the furniture in a state where it is evenly soiled as it is (the furniture corresponding to the layer 33D has already been arranged) and A state in which new furniture (furniture shown in the layer 33F) without dirt is installed in the room can be expressed.

    In the above embodiment, the CPU 1 constitutes a game control device, and various means of the game control device are constituted by a combination of the CPU 1 and specific software. At least a part of these means is a logic circuit. It may be replaced. The present invention is not limited to a home game system, and may be configured as a game system of various scales.

    The present invention can be used as an electronic game device using a computer and an entertainment game program to be executed by the computer.

FIG. 1 is a control block diagram of a game machine to which the present invention is applied. FIG. 2 is a diagram illustrating an example of a room and furniture objects arranged in a three-dimensional virtual space. FIG. 3 is a diagram showing a state in which a room becomes dirty with time, which is displayed on the display. FIG. 4 is a diagram showing a state in which furniture is arranged in the room shown in FIG. 3 and they become dirty with time. FIG. 5 is a view showing a state in which furniture is arranged in the room shown in FIG. 3 and they become dirty with time. FIG. 6 is a flowchart showing an example of a procedure for expressing dirt. FIG. 7 is a flowchart illustrating an example of a procedure for expressing dirt when furniture is installed.

Explanation of symbols

3. Memory (RAM)
9 …… Monitor 12 …… Controller (input means)
16 …… Computer (Game console)
20 …… Game device 33A, 33B, 33C, 33D, 33E, 33F ....... Layer 35 …… Room picture 36 …… Dirty picture 37 …… Virtual camera 39 …… Furniture PC1 …… Image T, FT …… Elapsed time GPR ...... Game program

Claims (6)

The computer arranges the first layer on which the room picture showing the scene inside the room is mapped as an object in the three-dimensional virtual space generated in the memory, and renders the layer with the virtual camera. A game program for generating an image of a room and functioning as a means for displaying on a monitor,
The game program further includes the computer,
Together with the first layer, a second layer in which a dirt picture representing the dirt of the room is mapped is located in the three-dimensional virtual space behind the first layer as viewed from the virtual camera side. Layer placement means to place ,
A first elapsed time counting means for measuring the elapsed time in the game as a first elapsed time and storing it in the memory means;
A third layer in which a picture of furniture is mapped to the virtual camera side of the first layer in the three-dimensional virtual space during the measurement of the first elapsed time by the first elapsed time measuring means; The fourth layer on which the dirt picture representing the dirt of the furniture displayed on the third layer is mapped, and the rear side of the fourth layer viewed from the virtual camera side with respect to the third layer. Furniture layer arrangement means arranged in a three-dimensional virtual space;
A second elapsed time after the third layer is arranged, time elapsed in the game, separately from the first elapsed time, and stored in the memory means as a second elapsed time Timekeeping means,
According to the first elapsed time stored in the memory means, the transparency of the first layer is set to a value of transparency according to the first elapsed time in the direction in which the transparency increases. First transparency calculating means for calculating and storing the result in the memory means;
First layer transparency control means for calculating and controlling the transparency of the first layer based on the transparency stored in the memory;
According to the second elapsed time, the transparency of the third layer is calculated in a direction in which the transparency increases, and the transparency value according to the second elapsed time is calculated, and the result is calculated. Second transparency calculating means stored in the memory means;
A second layer transparency control means for calculating and controlling the transparency of the third layer based on the transparency calculated and stored by the second transparency calculation procedure;
The first layer, the second layer corresponding to the first layer , the third layer, and the fourth layer corresponding to the third layer are rendered by a virtual camera to obtain a room and the room Room image generation means for generating an image of furniture carried in and displaying it on a monitor;
It is a game program for functioning as a room, and it is possible to express how the dirt in the room and the dirt in the furniture newly brought into the room progress in different ways, respectively. Characteristic game program that can express the dirt in the room. The game program further includes the computer,
Resetting the transparency value of the first layer stored in the memory means to an opaque state when a command for cleaning the room displayed on the monitor is input via the input means; 1 transparency reset means ,
The game program capable of expressing a room stain according to claim 1, wherein the game program is a game program for functioning as a room. The game program further includes the computer,
A second layer transparency value stored in the memory is reset to an opaque state when a command for cleaning the room displayed on the monitor is input via the input means; Transparency resetting means,
Game characterized in that it is a program, according to claim 1, wherein the room dirty representation capable game program of for functioning as a. The game program further includes the computer,
When a command for cleaning the room displayed on the monitor is input through the input unit, the transparency values of the first and third layers stored in the memory unit are reset to an opaque state. Third transparency resetting means ,
Game characterized in that it is a program, according to claim 1, wherein the room dirty representation capable game program of for functioning as a. The game program further includes the computer,
After the third layer is arranged, when the first command for commanding the cleaning of the room displayed on the monitor is input via the input means, the second elapsed time counting procedure is used. Time counting stop means to stop counting elapsed time,
After the transparency values of the first and third layers are reset by the third transparency resetting means , the transparency of the first and third layers is managed by the first elapsed time counting means. A transparency management means for controlling based on the first elapsed time to be timed;
According to the first elapsed time stored in the memory means, the transparency of the first and third layers is set in the direction in which the transparency increases, and the transparency value according to the first elapsed time. A third transparency calculating means for calculating the result so that the result is stored in the memory means ;
Third layer transparency control means for performing arithmetic control to change the transparency of the first and third layers based on the transparency stored in the memory;
5. The game program capable of expressing the dirt in a room according to claim 4 , wherein the game program is a program for functioning as a room. The first layer to which the room picture showing the interior scene of the room is mapped is placed as an object in the three-dimensional virtual space generated in the memory, and the layer is rendered with a virtual camera to render the room. A game device that can generate an image and display it on a monitor,
The game device includes:
Together with the first layer, a second layer in which a dirt picture representing the dirt of the room is mapped is located in the three-dimensional virtual space behind the first layer as viewed from the virtual camera side. Layer placement means to place,
A first elapsed time counting means for measuring the elapsed time in the game as a first elapsed time and storing it in the memory means;
A third layer in which a picture of furniture is mapped to the virtual camera side of the first layer in the three-dimensional virtual space during the measurement of the first elapsed time by the first elapsed time measuring means; The fourth layer on which the dirt picture representing the dirt of the furniture displayed on the third layer is mapped, and the rear side of the fourth layer viewed from the virtual camera side with respect to the third layer. Furniture layer arrangement means arranged in a three-dimensional virtual space;
A second elapsed time after the third layer is arranged, time elapsed in the game, separately from the first elapsed time, and stored in the memory means as a second elapsed time Timekeeping means,
According to the first elapsed time stored in the memory means, the transparency of the first layer is set to a value of transparency according to the first elapsed time in the direction in which the transparency increases. First transparency calculating means for calculating and storing the result in the memory means;
First layer transparency control means for calculating and controlling the transparency of the first layer based on the transparency stored in the memory ;
According to the second elapsed time, the transparency of the third layer is calculated in a direction in which the transparency increases, and the transparency value according to the second elapsed time is calculated, and the result is calculated. Second transparency calculating means stored in the memory means;
A second layer transparency control means for calculating and controlling the transparency of the third layer based on the transparency calculated and stored by the second transparency calculation procedure;
The first layer, the second layer corresponding to the first layer , the third layer, and the fourth layer corresponding to the third layer are rendered by a virtual camera to obtain a room and the room Room image generation means for generating an image of furniture carried in and displaying it on a monitor;
It is possible to express on the monitor that the stain on the room and the stain on the furniture newly brought into the room are different from each other, and progresses with time. , Game device.

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