JP2007215817A - Game device, game program, and computer readable record medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game device and a game program which realize a pachinko simulation game efficiently equipped with sufficient reality, a sufficient real time nature, and a sufficient game nature or one of those while holding down a counting cost in the pachinko simulation game. <P>SOLUTION: The game device or the game program which carries out a pachinko game in which the movement of a pachinko machine is reproduced, has a simulation means which simulates by physical counting at least the reflex movement of a ball and the simulation means does not perform the physical counting about the rotation of the ball. When a collision between the ball and a resting thing is detected, speed reduction in a tangent line direction according to a speed in the tangent line direction and a predetermined coefficient is carried out. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a game device having a processing device, an operation input device and a monitor device, a program for executing a game on the game device, and a computer-readable recording medium on which the program is recorded, and in particular, a pachinko machine on the monitor device. The present invention relates to a game apparatus that reproduces and displays a physical operation of the game, a game program thereof, and a computer-readable recording medium on which the game program is recorded.

  A simulation game that reproduces the operation of a pachinko machine is known in a consumer game machine in which a game screen generated in a processing device is reproduced on a television receiver (for example, Patent Document 1 below).

  However, there is nothing enough in terms of physical reproducibility for the movement of the ball, etc., even if you approach the 3D model of the moving ball and shoot from various angles with a virtual 3D camera, sufficient physical reality There was a strong demand for games that felt powerful.

However, if all the physical laws related to the operation of the pachinko machine are to be reproduced, the calculation cost increases, and real-time simulation becomes difficult for a home game machine or the like.

In addition, the interaction between members that cannot be easily analyzed as a law of physics in the first place may have an effect on the game performance. As a result, while reducing the calculation cost, sufficient reality, sufficient real-time performance, and sufficient game play There has been a need to realize a pachinko simulation game that has sex.
JP-A-8-280935

  The present invention has been made in view of the above-mentioned problems, and in a pachinko simulation game, it efficiently includes sufficient reality, sufficient real-time performance, and sufficient game performance or any of them while suppressing calculation cost. The purpose is to realize a pachinko simulation game.

  The present invention solves the above-described problem, and is a game apparatus for executing a pachinko game in which the operation of a pachinko machine is reproduced, and includes a simulation means for simulating at least a ball reflection operation by physical calculation, and the simulation Means is a game device characterized by not performing a physical calculation relating to the rotation of a ball, or a game program for executing a pachinko game that reproduces the operation of a pachinko machine, and at least the reflection operation of the ball is physically A game program characterized in that simulation control for simulation by calculation is performed, and the simulation control does not perform physical calculation related to ball rotation, or a computer-readable recording medium on which the game program is recorded There .

  In the present invention, it is advantageous that when the simulation means detects a collision between a ball and a stationary object, the tangential speed is reduced according to a tangential speed and a predetermined coefficient.

  In the present invention, it is advantageous that the simulation means does not perform a physical calculation related to the deceleration of the ball by the dynamic friction coefficient, which corresponds to a slip between the ball and a stationary object.

  In the present invention, it is advantageous to perform speed exchange when the simulation means detects a collision between a ball and another movable object (including another ball).

  In the present invention, the simulation means performs calculation related to the deceleration of the velocity in the normal direction of the collision surface according to a predetermined rebound coefficient at the time of collision between the ball and another object (including another ball). It is advantageous to do so.

  In the present invention, it is advantageous that the simulation means performs a physical calculation related to a drop of a ball due to gravity.

  In the present invention, it is advantageous to limit the number of balls to be displayed.

  In the present invention, it is advantageous to handle the ball as a sphere in the collision determination.

  In the present invention, it is advantageous to handle the nail as a cylinder in the collision determination.

  Further, in the present invention, it is advantageous to handle other than balls and nails as a set of polygons in collision determination.

  In the invention according to claim 1 or 11, simulation means for simulating at least the reflection operation of the ball by physical calculation is provided, and the simulation means does not perform physical calculation related to the rotation of the ball. While efficiently reproducing the phenomenon that contributes to the game, a large amount of calculation cost related to the influence of the rotation of the ball is omitted, thereby realizing a certain reality, a sufficient real-time property, and a certain game property.

  In the invention according to claim 2, in order to carry out the tangential speed reduction according to the tangential speed and a predetermined coefficient when the collision between the ball and the stationary object is detected, the slip effect (dynamic friction coefficient) and the like are mounted. Even without this, it is possible to simulate natural deceleration caused by an object on the side in the traveling direction (launch rail, croon rail, nail, blade, etc.), and it is possible to effectively improve the reality and game characteristics.

  In the invention according to claim 3, since the physical calculation related to the deceleration of the ball by the dynamic friction coefficient, which corresponds to the slip between the ball and the stationary object, is not performed, the calculation cost of the deceleration due to the friction is omitted, and the real-time property can be further improved. it can.

  In the invention according to claim 4, in order to perform speed exchange when a collision between a ball and another movable object (including another ball) is detected, there is a certain force in the phenomenon of a pachinko machine, It is possible to effectively provide a scene where balls collide, which contributes to the game performance.

  In the invention according to claim 5, at the time of collision between the ball and other objects (including other balls), in order to carry out the calculation related to the speed reduction in the normal direction of the collision surface according to a predetermined rebound coefficient, It becomes closer to the action of a real pachinko machine, contributing to reality and game play. In addition, the speed of the balls gradually converges as in the case of an actual pachinko machine, and the balls can be collected by the rails, so that the game characteristics are easy to understand. In addition, since the range of the object that needs to be determined for the collision gradually converges with the speed of the ball and is finally recovered, the cost for determining the collision is also reduced, contributing to real-time performance.

  In the invention according to claim 6, in order to perform a physical calculation related to the fall of the ball due to gravity, the reality and important game characteristics that are the real pleasure of pachinko, such as changes in the coordinates of the ball due to the fall and acceleration, are particularly easy to calculate. Can be reproduced efficiently.

  In the invention according to claim 7, since the number of balls to be displayed is limited (for example, about 8), the necessary reality can be effectively obtained without excessively complicating the screen beyond the range that can be recognized by the user. You can pursue or improve real-time performance.

  In the invention according to claim 8, since the ball is handled as a sphere in the collision determination, the calculation of the contact point, the collision surface, the normal line, and the like becomes easier than in the case of a polygon, an ellipse or the like, which contributes to real time characteristics. Moreover, since an actual ball is sufficiently close to a sphere, high reality and stable game performance can be obtained.

  In the invention according to claim 9, since the nail is handled as a cylinder, the calculation of the contact point, the collision surface, the normal line, and the like is easier than in the case of the ball, which contributes to the real time property. Moreover, since an actual nail is sufficiently close to a cylinder, high reality and stable game performance can be obtained.

  In the invention according to claim 10, since other than balls and nails are represented by polygons and each has a unique normal, collision determination is easy to implement safely and simply, and variations of the collision determination method can be simplified, Contributes to real-time performance by reducing calculation costs. Also, it is easier to define and record as an object than a complicated curved surface.

  Hereinafter, the present invention will be described with reference to the drawings.

  FIG. 1 (10) is a schematic diagram of a pachinko machine 11 to be simulated in the game machine of the present invention, and a virtual three-dimensional camera of the game images the pachinko machine in the virtual three-dimensional space from the center and will be described later. This corresponds to the content displayed on the monitor 23.

  As shown in the figure, the pachinko machine 11 is a three-dimensional model that is simulated in a real machine, a slot 12 for throwing a ball for gaming, a handle gauge 13 that determines the initial speed of the ball, and a ball that has obtained the initial speed. A rail 14 for guiding the ball to the main board surface 17, a leaf spring 15 serving as a valve for stabilizing the hitting of the balls on the main board surface 17, and a nail 16 that collides and reflects the balls on the main board surface 17 to expand the game performance. Etc. in common.

On the rail 14 and the main board surface 17, the balls according to the present invention are dropped, and the balls are collided with other balls or nails or reflected. It should be noted that a simulation is also performed via the monitor 23 in accordance with general operations as a pachinko machine, such as throwing in balls, winning a prize, directing, and paying out balls.

FIG. 2 is an external configuration diagram of the game apparatus 20 according to the present invention.

The game apparatus body 21 performs game progress control and effect processing. In addition, a recording medium drive 35 described later is provided, and a game other than the pachinko simulation of the present invention can be performed by replacing an external recording medium such as a CD, DVD, or ROM including a progress control program and effect processing data. .

  In this simulation game, the controller 22 is used mainly by the user for adjusting the handle gauge 13, and selects and determines various additional functions (for example, zoom of the virtual camera and various game functions) specific to the simulation. Also used for such purposes.

  The monitor 23 is used not only to display the contents captured from the virtual camera of the three-dimensional model of the pachinko machine shown in FIG. 1 but also to perform various additional functions peculiar to the simulation.

  FIG. 3 is an explanatory diagram (30) showing the hardware configuration of the game apparatus body 21. As shown in FIG.

  The game apparatus main body 21 includes a central processing unit (CPU) 31 that controls the entire game apparatus, a recording device such as a RAM 32, a ROM 33, and a hard disk 34, and a recording medium drive 35 for reading an external recording medium. , An image synthesis IC 36 and a voice synthesis IC 37 for generating game screens and game sounds, an I / O port 38 for transmitting / receiving signals to / from the controller 22 and the like, and a bus for interconnecting these devices A game screen and game sound generated by the image synthesis IC 36 and the voice synthesis IC 37 based on a signal from the CPU 31 operating in accordance with a program recorded on an external recording medium and the like are output from the monitor 23. The game progresses.

  In the RAM 32, the pachinko software 32a of the present invention is loaded from the external storage medium via the storage drive 35. This pachinko software 32a includes programs and data relating to the general progression of pachinko, as well as programs and data 32b for performing simulations according to the invention, programs and data 32c for performing special launch control, and leaf spring action Includes a program and data 32d for specially displaying the ball and a program and data 32e for randomizing the initial velocity of the ball.

The program and data 32b for performing the simulation according to the present invention include a function for calculating the fall of a ball, a function for calculating a ball collision, and a function for limiting the number of displayed balls to eight (a mode for suppressing the frequency of continuous firing). In addition, display polygons and collision determination data are managed separately. In particular, the collision determination data manages balls as balls, nails as cylinders, rails and other objects as polygons for effective implementation of the present invention.

  The function to calculate the fall of the ball memorizes the gravitational acceleration (Y-axis minus direction acceleration) according to the world coordinate system of the virtual three-dimensional space for simulation, and moves the coordinate of the ball according to the frame time and velocity vector ( All coordinate movements include a fall) and a gravitational acceleration according to the frame time (1 / 60th of a second) is added to the velocity vector of each ball. However, if there is one or more collisions for all balls on the board within the frame time, the coordinate movement and gravity for all the balls will be divided by one time for the time until each collision and the remaining frame time. Add acceleration. Therefore, as long as no collision occurs, all balls will move linearly in every frame time, but as a result of the gravitational acceleration being added every time the frame time elapses, a certain amount of time (for example, 10 frame hours or more) ), The parabolic motion of the ball in an actual pachinko machine will be precisely reproduced.

  The function of calculating the collision of balls is a reflection with a stationary object (rail, nail, etc.) accompanied by a normal deceleration according to the bounce coefficient and a tangential deceleration according to a predetermined coefficient of friction (FIG. 4). ) And speed exchange with a moving object (other balls, etc.) with normal deceleration according to the bounce coefficient and tangential deceleration / acceleration according to the predetermined friction coefficient (Fig. 5) Is simulated by a simple formula in FIGS. 4 and 5 to be described later.

  FIG. 4A is an explanatory diagram showing a state of collision and reflection with a plane (= polygon) represented by a rail.

  In the figure, the emphasized line segment represents the incident angle and velocity, and the vector represents the emission angle and velocity.

  As is apparent from the figure, the deceleration in the normal direction when reflected can be calculated at high speed by a simple formula that refers to the rebound coefficient that has been measured and stored in advance.

  Similarly, the amount of deceleration in the tangential direction when reflected can be calculated at high speed by a simple formula that refers to a predetermined coefficient of friction that has been measured and stored in advance.

  FIG. 4B is an explanatory diagram showing the state of collision and reflection with a cylinder represented by a nail, and sides and points constituting the edge of a polygon. Note that a known algorithm is used to determine whether the ball collides with the polygon or escapes from the polygon, and in the case of a collision, the ball collides with the surface of the polygon or collides with a side or a point. It is not detailed in the specification.

  In FIG. 4B, since a sphere and a cylinder collide with each other, the collision plane (tangent line and normal line) can be specified more easily than in the case of an object composed of a set of polygons.

  Once the collision surface can be calculated, the normal-direction deceleration and the tangential deceleration of the collision surface can be calculated at high speed as in the case of the collision with the polygon (plane).

  Obviously, the influence of the offset in the case of an offset collision can be calculated by reducing the incident angle.

  In addition, the rebound coefficient and the above-described predetermined friction coefficient can be adjusted or remeasured in consideration of the difference in material and structure between the rail and the nail.

  Although FIG. 4 is a cross-sectional view, for the collision with the cylinder and the side, the calculation of the acceleration in the length direction (deceleration) is the calculation method of the collision with the plane (FIG. 4A). Can be applied.

  FIG. 5 is an explanatory diagram showing a state of collision and speed exchange with a moving object such as another ball.

  The figure shows the speed exchange in the “tangential” direction when the normal speed of the collision is balanced in the opposite direction, but if there is no balance, the speed exchange in the “normal” direction is also performed. . That is, the larger normal speed is decelerated in the normal direction, and the smaller normal speed is accelerated in the normal direction. Speed exchange in the "normal" direction)

  As is clear from the figure, the normal deceleration α and the tangential deceleration β are simply referred to the pre-measured rebound coefficient and the predetermined coefficient of friction as in the case of the reflection on the stationary object in FIG. It is possible to calculate at a high speed by a simple formula.

  In this embodiment, speed exchange is also performed in the tangential direction. When the tangential directions are equal, based on a predetermined friction coefficient, when the masses are equal (especially between balls), the deceleration β is the acceleration β of the opponent ball. When the direction of the tangential direction is opposite (in the case of an offset collision), both balls also have a deceleration amount β in the tangential direction.

  FIG. 6 is a flowchart emphasizing the portion according to the present invention in the overall operation realized by the program in the memory 32.

  When the game is started (START) in step S1, the processes in and after step S2 are repeated until the process ends in step S6.

  In step S2, by using the simulation program and data 32b, all the balls on the board including the balls in the launch rail and the balls in the croon are dropped and collided (decelerated as shown in FIGS. 4 and 5). ), State calculation is performed according to the physical laws of reflection and velocity exchange, and the reference coordinates and velocity of the ball in the next drawing frame are obtained. However, for the sake of simplicity and improvement of calculation speed (improvement of real-time performance by reducing CPU processing load), ball rotation and ball slip (friction coefficient) are not considered.

  Next, in step S3, a pseudo simulation is performed for an action that tends to be costly other than the physical simulation shown in FIGS. For example, if there is a ball that passes through the polygon of the leaf spring 15 from the rail side, the angle and reference coordinates of the ball are set to predetermined values that have been verified in advance by the game and the data 32c. According to the program and data 32d for correcting and displaying the leaf spring action, the leaf spring is rotationally displaced around its fixed end. On the other hand, if there is no ball passing through, 32d is based on the rotational displacement. For example, a return process is performed.

  Next, in step S4, input processing by the user, determination processing such as termination and winning, processing for effects other than ball movement, and the like are performed. In this step, other partial processing for realizing the game is also performed. For example, when a ball is hit on the rail 14, the initial speed is sequentially added to the input value by the user's handle gauge 13 and the statistical fluctuation prestored in the program for initial speed randomization and data 32e. The process of assuming it is done.

  Next, in step S5, a new frame is drawn (rendered) based on the virtual camera coordinates, the reference coordinates of each ball, the coordinates indicating the rotational displacement of the leaf spring, the definition and texture of each polygon, and the like. Do. Further, in order to pursue the real time property of the simulation, a known process such as waiting for the progress if 1/60 second has not elapsed since the previous drawing is also performed.

  If the end determination condition is satisfied in step S4, the process proceeds to step S6 to end (END) the game.

  The present invention has been described based on the exemplary embodiments. However, the present invention is not limited to the above embodiments, and various changes and modifications can be made within the scope of the claims. is there.

  For example, in the above-described embodiment, the number of balls to be displayed is limited to eight. However, depending on the CPU power, the number of balls may be limited to a certain value higher than that or limited to a certain value less than that. Is also possible.

  In the above-described embodiment, the launch condition is managed using the leaf spring 15 having a pseudo physical action. However, the physical properties of the leaf spring are analyzed in more detail, It is also possible to manage launch conditions by more realistic simulation of collision, reflection, and speed exchange.

  Further, in the above-described embodiment, not only the normal speed exchange but also the tangential speed exchange is performed at the time of collision with the movable object. However, by omitting this, the calculation speed is improved. Real-time performance can be further increased.

It is an outline of a pachinko machine to be simulated according to an embodiment of the present invention, and is an outline of a three-dimensional model displayed in a simulation game. Explanatory drawing which shows the external appearance structure of the game device which concerns on one Embodiment of this invention. Explanatory drawing which shows the internal structure of the game device main body which concerns on one Embodiment of this invention. Explanatory drawing which shows the calculation example of the mode of the collision with respect to the stationary object, reflection, and acceleration which concern on one Embodiment of this invention. Explanatory drawing which shows the calculation example of the mode of the collision with respect to the movable object which concerns on one Embodiment of this invention, and speed exchange, and the acceleration. The overall control flowchart which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Pachinko machine, 12 ... Pachinko ball slot (tray), 13 ... Handle gauge, 14 ... Launch rail, 15 ... Leaf spring (valve), 16 ... Nail, 17 ... Main board surface, 21 ... Game device body, 22 ... Controller, 23 ... Monitor, 31 ... CPU, 32 ... RAM, 32a ... Pachinko software, 32b ... Program and data for simulation, 32c... Program and data for launch control, 32d... Program and data for leaf spring action display, 32e... Program and data for initial speed randomization 33 ... ROM, 34 ... hard disk, 35 ... recording medium drive, 36 ... image synthesis IC, 37 ... voice synthesis IC, 38 ... I / O port, 41. And Pachinko ball

Claims (12)

A game device that implements a pachinko game that reproduces the operation of a pachinko machine,
A simulation means for simulating at least the reflection behavior of the ball by physical calculation,
A game apparatus, wherein the simulation means does not perform a physical calculation related to rotation of a ball.   The game apparatus according to claim 1, wherein when the simulation unit detects a collision between a ball and a stationary object, the simulation unit performs tangential deceleration according to a tangential speed and a predetermined coefficient.   The game apparatus according to claim 1, wherein the simulation unit does not perform a physical calculation related to deceleration of a ball by a dynamic friction coefficient, which corresponds to a slip between a ball and a stationary object.   The speed is exchanged when the simulation means detects a collision between a ball and another movable object (including another ball), according to any one of claims 1 to 3, Game device.   The simulation means performs a calculation related to a reduction in speed in the normal direction of the collision surface according to a predetermined rebound coefficient at the time of collision between the ball and another object (including another ball). The game device according to any one of claims 1 to 4.   The game apparatus according to claim 1, wherein the simulation unit performs a physics calculation related to a drop of a ball due to gravity.   The game device according to claim 1, wherein the number of balls to be displayed is limited.   The game apparatus according to claim 1, wherein a ball is handled as a ball in the collision determination.   The game apparatus according to any one of claims 1 to 8, wherein a nail is handled as a cylinder in the collision determination.   The game apparatus according to any one of claims 1 to 9, wherein in collision determination, a part other than a ball and a nail is handled as a set of polygons. A game program that implements a pachinko game that reproduces the operation of a pachinko machine,
Implementing simulation control that causes a computer to simulate part of the movement of the ball by physical calculation;
A game program, wherein the simulation control does not perform a physical calculation related to the rotation of a ball. A computer-readable recording medium recording a game program for executing a pachinko game that reproduces the operation of a pachinko machine,
Implementing simulation control that causes a computer to simulate part of the movement of the ball by physical calculation;
A computer-readable recording medium on which a game program is recorded, wherein the simulation control does not perform a physical calculation related to rotation of a ball.

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