JP3442184B2 - Three-dimensional game apparatus and control method thereof - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention, while watching a game screen of a virtual three-dimensional game space displayed on a display,
The present invention relates to a three-dimensional game device that attacks a target appearing in a three-dimensional game space and enjoys a game.

[0002]

2. Description of the Related Art Conventionally, while watching a game screen displayed on a display, a player controls a player moving body such as a fighter in a virtual three-dimensional game space to attack a target such as an enemy fighter. Shooting game devices are known.

In this three-dimensional game device, when a bullet shot by the player hits a predetermined hit area set corresponding to the target, a screen is displayed in which the target is damaged and the player is given a score. To do.

[0004]

In this type of game device, the hit determination (hereinafter referred to as hit check) between the bullet shot by the player and the target of the enemy fighter or the like is performed, and depending on the condition. How to direct the damage done to the opponent is an important factor that determines the fun of the game. Even if you hit a rough hit check, the fun of the game will be halved if the same hit effect.

However, the conventional three-dimensional game device is only set to give a certain amount of damage to the target no matter where it hits, and the damage received by the opponent is different depending on the hit location. . For this reason, it is not possible to produce different shots depending on where the bullet hit.

In particular, in a battle in a three-dimensional space, as in an actual air battle, enemy and ally fighters move in three dimensions while attacking from various directions.
Although it is extremely realistic for the player, the player's operation is not reflected in detail in the bullet effect, and only a very rough bullet effect is given, which causes the reality of the game to be impaired and There was a problem of making it less interesting.

The present invention has been made in view of the above problems, and its purpose is to describe in detail a player's operation as a damage effect in a game of attacking a target appearing in a three-dimensional game space. The purpose of this is to provide a three-dimensional game device capable of playing interesting and highly realistic games.

[0008]

In order to achieve the above object, the invention of claim 1 is based on a game operating means operated by a player, an input signal from the operating means, and a predetermined game program. A game calculation means for performing a game calculation for attacking a target appearing in the three-dimensional game space, wherein the game calculation is performed in the three-dimensional game device displaying a game screen of the virtual three-dimensional game space on a display. A means is a damage area setting means for setting a plurality of damage areas that define damage amounts of different ranks with respect to the target with reference to the coordinate position of the target in the virtual three-dimensional game space.
And a damage calculation unit that calculates the damage received by the target based on which rank of the damage area the attack position with respect to the target is included in, and performs a game effect based on the damage amount of the target. And

According to the first aspect of the invention, in order to determine the amount of damage the target receives by the attack, the damage area setting means sets the target coordinate position in the virtual three-dimensional space as a reference to the target. A plurality of damage areas that define the damage amounts of different ranks are set, and the damage calculation means calculates the damage received by the target based on which rank of the damage area the attack position for the target is included in.

Therefore, according to the present invention, a target having a volume in a virtual three-dimensional space can be rendered different in the amount of damage it receives, depending on which location it is attacked by, which makes it more realistic. It is possible to provide a game device that can perform rich game production.

To achieve the above object, the invention of claim 2 provides the game operating means according to claim 1, wherein the game operating means includes a trigger operating means for firing a predetermined attack item, and the target operating in the game space. The damage calculation means is configured to calculate the damage received by the target based on which rank of the damage area the attack position of the attack item against the target is included in. It is characterized by being formed.

According to the second aspect of the present invention, the damage calculation means detects which rank of the target damage area the attack position calculated based on the input of the trigger operation means of the player is included in the target damage area. The amount of damage received is calculated.

Therefore, according to the present invention, it is possible to change the effect of the damage given to the target depending on the attack position received by the target, and it is possible to provide a game device capable of performing a more realistic game effect. .

In order to achieve the above-mentioned object, the invention of claim 3 provides the damage calculation means according to claim 2, based on which rank of the damage area the movement route of the attacking item passes through. It is characterized in that it is formed to calculate the damage received by the target.

According to the third aspect of the present invention, the damage calculating means detects which rank of the target damage area the trajectory calculated based on the input of the trigger operating means of the player passes, and the damage of the target is detected. The amount of damage received is calculated.

Therefore, it is possible to change the effect of the damage given to the target depending on which position of the target hits the bullet, and it is possible to provide a game device capable of performing a more realistic game effect.

Further, in the invention of claim 4 according to any one of claims 2 and 3, the damage calculation means determines to which rank of the damage area the effective area at the time of explosion of the attack item reaches. Based on the above, the target is formed so as to calculate the damage received by the target.

According to the invention of claim 4, the damage calculation means detects to which rank of the target the damage area is damaged by the explosion of the attacking item on its movement path, Calculates the amount of damage the target receives.

Therefore, when the attacking item explodes, it is possible to change the effect of damage given to the target depending on the position of the target, and to provide a game device capable of providing a more realistic game effect. can do.

Further, in the invention of claim 5 according to any one of claims 1 to 4, the damage area setting means includes a damage area with a large damage amount in a damage area with a small damage amount, and a target reference value. It is characterized in that the damage areas of the plurality of ranks are set such that the amount of damage increases as the position approaches.

According to the fifth aspect of the present invention, by providing the reference position at the center of the target, a large amount of damage will be caused when the target is damaged near the center and an end of the target will be damaged. It is possible to produce a small damage.

Further, in the case of the collision judgment of the moving body or the bullet and another moving body or the object, whether or not they have collided properly,
You can change the degree of damage depending on whether it is faint.

Further, in the invention of claim 6, in claim 5, the damage calculating means determines in which rank of the damage area the attack position with respect to the target is included in order from a rank having a smaller damage amount. It is characterized by doing.

When the damage area is set as in claim 5, the damage area with the large damage amount is included in the damage area with the small damage amount. Therefore, if you determine whether the attack position is included in order from the outer damage area, as the damage increases,
The number of judgments increases and the amount of calculation also increases. This way,
When the amount of damage is small, the amount of calculation is small, and it is possible to make a judgment with a calculation without waste.

The invention of claim 7 is characterized in that, in any one of claims 1 to 6, the damage area setting means sets each of the damage areas in a rectangular parallelepiped shape.

When the damage area setting means sets each damage area as in the seventh aspect of the invention, the damage area determining means coordinates the attack position or the hit position in the virtual three-dimensional space or the effective area at the time of explosion. However, the amount of damage is determined by detecting whether or not it is included in the damage area of each rank of the rectangular parallelepiped shape. Therefore, if the center of the damage area of each rank of this rectangular parallelepiped shape is set as the target center, the calculation for the judgment performed by the damage area judging means is only the coordinate adjustment calculation, and the damage judgment can be made with a small calculation amount. You can

The invention of claim 8 is characterized in that, in any one of claims 1 to 6, the damage area setting means sets each of the damage areas in a spherical shape.

If the damage area setting means sets each damage area as in the eighth aspect of the invention, the damage area determining means coordinates the attack position or the hit position in the virtual three-dimensional space or the effective area at the time of explosion. The damage amount is determined by detecting whether is included in the damage area of each spherical rank. Therefore, by setting the center of the damage area of each rank of this spherical shape as the target center, it is possible to perform the damage determination reflecting the distance from the target center.

According to a ninth aspect of the present invention, in the game calculation means according to any one of the second to eighth aspects, the player moving body moves in the three-dimensional game space based on an input signal from the game operating means. It is characterized in that it is formed so that an attacking item is launched from the player moving body toward a moving target or a stationary target appearing in the game space based on an operation signal from the trigger operating means.

According to the ninth aspect of the present invention, the player operates the game operation means to move the player in the virtual three-dimensional space to attack the enemy and give damage to the enemy according to the attack. It is possible to provide a game device for playing.

[0031]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows a preferred example of a commercial video game device to which the present invention is applied. The video game device of the embodiment includes the cockpit portion 10 and the display 30 arranged in front of the cockpit portion 10.

The cockpit portion 10 is formed assuming a cockpit of a fighter. The player sitting on the seat 12 inserts a predetermined coin from the coin inserting unit 18,
Operate the start button 20 to start the game,
A game screen 300 is displayed on the display 30. On the game screen 300, the cockpit part 1 is displayed in a preset three-dimensional game space as described later.
The view seen in front of 0 is displayed. An enemy fighter 532 is flying in this three-dimensional game space. In addition,
For beginners, it is easier to operate the image when the player can see the aircraft, so the view seen from diagonally above and behind the aircraft may be displayed.

As shown in FIG. 2, this cockpit portion 10
A steering lever 14 and a speed lever 16 are provided as a steering device. The control lever 14 is
By tilting forward and backward, the fighter is controlled downward or upward (y-axis direction), and by tilting left and right, the fighter is controlled to turn right or left (x-axis direction). Further, the speed lever 16 controls the speed in the forward direction (z-axis direction) by operating the speed lever 16. The player operates the control lever 14 to control the attitude and orientation of his fighter, and operates the speed lever 16 to control his own speed.
Track 32 and find enemy bases on the ground. And
Aim 320 at the target such as enemy fighter 532 or enemy base appearing on game screen 300, and trigger buttons 22, 24
Operate to launch a machine gun and missile to destroy the target and raise the score.

FIG. 3 shows a functional block diagram of the commercial video game apparatus of the embodiment.

The commercial video game apparatus of the embodiment includes a player operation unit 40, a game calculation unit 100, an image composition unit 200, and a display 30.

The player operating section 40 includes various levers 14, 16 and operating buttons 20, 22, 24 shown in FIG.
These are members operated by the player. The operation signal is
It is input to the game calculation unit 100.

The game calculation section 100 performs various game calculations based on an input signal from the operation section 40 and a predetermined game program, and outputs data necessary for image combination to the image combination section 200. The game space calculation unit 110, the map information storage unit 130, and the moving body information storage unit 140 are included.

Objects forming the three-dimensional space include moving objects such as fighters and fixed objects such as the ground, mountains, enemy bases, and rivers.

The moving body information storage section 140 stores position information / direction information of a moving body such as an enemy fighter, and an object number of an object representing an image of the enemy fighter to be displayed at this position ( Hereinafter, the stored position / direction information and object number will be referred to as moving body information).

Further, the map information storage unit 130 divides the map information including the ground, mountains, enemy bases, rivers, etc. into a rectangular shape, and the position information of the divided map and the ground to be displayed at this position. Object numbers of objects representing images such as mountains are stored (hereinafter, the stored position information and object numbers are referred to as division map information).

A predetermined game program is stored in a storage unit (not shown) provided in the game space calculation unit 110. The game space calculation unit 110 calculates the position coordinates of the own fighter in accordance with the game program, the operation signal from the operation unit 40, and the own fighter information read from the mobile body information storage unit 140. Furthermore, the game space calculation unit 110 also calculates the position coordinates of other moving bodies based on the game program and the moving body information read from the moving body information storage unit 140. Then, the game space is set based on the position coordinates of the own fighter, the position coordinates of the other moving body, and the divided map information read from the map information storage unit 130.

As described above, in this embodiment, the player moves the fighter in the predetermined three-dimensional game space set as shown in FIG. 4A, and the player attacks the enemy fighter. Is calculated and the calculation result is calculated by the image synthesizing unit 200.
Output to.

In the game device of this embodiment, the image is supplied to the display every 1/60 seconds, so the game space computing section 110 computes the position coordinates in the world coordinate system of each moving body every 1/60 seconds. Output to the image composition unit 200.

The details of the calculation processing in the hit determination section 120 of the game space calculation section 110 will be described later.

The image synthesizing unit 200 is a game calculation unit 100.
The pseudo three-dimensional image actually seen by the player is formed according to the calculation result of (3) and is displayed on the display 30. The three-dimensional calculation unit 220 and the image drawing unit 240
And an object image information storage unit 260.

The object image information storage unit 260 stores image information of a moving object such as an enemy fighter designated by the object number, and image information of the ground, mountains, enemy bases and the like.

In this case, these pieces of image information are expressed as a set of a plurality of polygons. For example, as shown in FIG. 5, a moving object 510 such as an enemy fighter is represented by a set of polygons 512-1, 512-2 to 512-5 ... And this polygon 512-1
The image information including the vertex coordinates of 512-5 ... Is stored in the object image information storage unit 260. Similarly, map information of enemy bases, which are map objects, is also expressed as a set of polygons, and image information including the vertex coordinates of the polygons is also stored in the object image information storage unit 260.

The three-dimensional operation unit 220 reads out corresponding image information from the object image information storage unit 260 based on the input data (moving body information and division map information) and sets it in the game space as a set of a plurality of polygons. To do. At this time, a process for obtaining the vertex coordinates in the viewpoint coordinate system of the set of polygons forming each object is performed from the position information of each object input in the world coordinate system. That is, since the output coordinates of the game space calculation unit are the world coordinate system, coordinate conversion is performed to the viewpoint coordinate system. Then, processing such as clipping processing for removing data outside the field of view, perspective projection conversion to the screen coordinate system, and sorting processing is performed, and the processed data is output to the image drawing unit 240.

The image drawing section 240 forms image information that should be actually seen by the player from these input data. That is, since the data input from the three-dimensional calculation unit 220 is expressed as image information including the vertex information of the polygon, the image drawing unit 240 uses the vertex information of the polygon and the like to determine all dots inside the polygon. Image information is formed. Then, the processed data is output to the display 30 as shown in FIG.
A virtual three-dimensional image as shown in (B) is formed.

As an image composition calculation method in the image drawing unit 240, the contour line of the polygon is obtained from the vertex coordinates of the polygon, the contour point pair which is the intersection of this contour line and the scanning line is obtained, and this contour point is calculated. A method of associating the line formed by the pair with predetermined color data or the like may be used. In addition, the image information of all the dots in each polygon is stored in advance in a ROM or the like as texture information, and the texture coordinates given to each vertex of the polygon are used as an address to read and paste the texture information. A so-called method may be used.

FIG. 6 shows a principle diagram of the image synthesizing method.

In the game device of the embodiment, the map information in the three-dimensional game space 500 and the three-dimensional game space 50 are stored.
Information about the three-dimensional object 510 appearing in 0 is stored in advance in the map information storage unit 130 and the moving body information storage unit 140 in the game calculation unit 100.

Further, the image information regarding the three-dimensional object 510 is the information of a plurality of polygons 512-1, 512-512.
2, 512-3, ..., and is stored in the object image information storage unit 260 in advance.

Taking the fighter game of this embodiment as an example, 3
The three-dimensional object 510 is a fighter 532 or the like that appears in the three-dimensional game space 500.
In addition to this, for example, as shown in FIG.
Various three-dimensional objects representing the background such as 19, mountains 520, buildings 522, and bases 524 are arranged.

These three-dimensional objects are perspective-projected and converted by the image synthesizing unit 200 onto the perspective projection plane 620 of the viewpoint coordinate system centered on the viewpoint 610 of the virtual player P, and displayed on the display 30 as a pseudo three-dimensional image 522. Is displayed.

FIG. 7 shows a fighter 530 operated by a player and an enemy fighter 5 in the three-dimensional game space 500.
The positional relationship with 32 is shown. 3D game space 5
00 is, in principle, the world coordinate system (XW, YW, ZW
), In the figure, a viewpoint coordinate system in which a viewpoint 610 shown in FIG. 6 is set at the position of the cockpit of the fighter 530 operated by the player is shown. This viewpoint coordinate system is
The direction of the line of sight of the viewpoint 610 is defined as the z-axis, the horizontal direction is defined as the x-axis, and the vertical direction is defined as the y-axis. Therefore, when the player faces the operation unit 40, the viewpoint 6
When viewing the display 30 from 10, an image can be seen in which one sits in the cockpit of a fighter and is located in the three-dimensional game space 500.

When the player operates the operation lever 14 or the like to rotate or translate a fighter that he or she virtually rides, the viewpoint 6 with respect to the three-dimensional game space 500 is displayed.
The position of 10 changes, the three-dimensional game space 500 rotates,
It will be translated. Therefore, the game calculation unit 100
3 based on this operation signal and game program.
Calculations such as rotation and translation of the three-dimensional object 510, which is a fighter, and other three-dimensional objects that constitute the three-dimensional game space 500 are performed in real time. Then, in the image composition unit 200, these three-dimensional objects are perspective-projected on the perspective projection plane 620 and displayed on the display 30 as a pseudo three-dimensional image 522 that changes in real time.

When the computer graphics method is used, the shape model of the three-dimensional object 510 is created using an independent body coordinate system. That is, each polygon that forms the three-dimensional object 510 is arranged on this body coordinate system, and its shape model is specified.

Further, the three-dimensional game space 500 is constructed using the world coordinate system (XW, YW, ZW), and the three-dimensional object 510 represented using the body coordinate system.
Are placed in the world coordinate system according to their kinetic model.

Then, with the position of the viewpoint 610 as the origin,
The data is converted into a viewpoint coordinate system in which the direction of the line of sight is in the positive direction of the z-axis, and each coordinate is perspective-projected into the screen coordinate system which is the projection surface 620. In this way, the image within the field of view of the three-dimensional game space 500 that can be seen from the viewpoint 610 can be displayed on the display 30. Therefore, the player has the levers 14 and 16 and the trigger button 2
By operating 2, 24, the three-dimensional game space 50
You will be able to virtually simulate the state of attacking an enemy aircraft while controlling a fighter plane within 0.

In the arcade game machine of the embodiment, when the game is started, the fighter operated by the player freely fly around the virtual three-dimensional game space 500 shown in FIG. And attack with missiles.

FIG. 8 shows the three-dimensional game space 500 as a two-dimensional space of x and z in the viewpoint coordinate system.
In the figure, 560 is a visual range of a fighter operated by a player, 564 is an enemy shadow visual range, 562 is a Vulcan effective range, and 566 is a maximum missile range.

Therefore, even if a missile or a Balkan gun is fired at an enemy fighter that is not included in the missile maximum range 566 and the Balkan effective range 562, the enemy fighter cannot be effectively attacked.

FIG. 9 shows a more detailed example of the game screen displayed on the display 30. In the game device of the embodiment, the enemy fighter 532 is located within the view range 560 in the three-dimensional game space 500, and only when the position is before the enemy shadow visual distance 564 shown in FIG. , The image of the enemy fighter 532 is formed to be displayed on the game screen. And the enemy fighter 53
The target designator 310a is overlaid and displayed at the display position of 2. This target designator 310
“A” indicates the position of the enemy fighter 532, and the enemy fighter 532 is located at the center of the circle. Therefore, the player can easily confirm the enemy fighter 532 present in the game screen 300 by using the target designator 310a.

Further, when the enemy fighter 532 enters the missile range circle 324, the missile seeker 322 is automatically displayed and starts moving toward the enemy fighter 532. Then, when the missile seeker 322 overlaps the target designator 310a, the missile is locked on the enemy fighter 532. In this state,
When the player operates the trigger button 24 for launching the missile, the missile 582 is launched as shown in FIG. 11, and tracking of the enemy fighter 532 is started. Normally, the missile 582 automatically tracks the enemy fighter 532 and hits the enemy fighter 532. However, in some cases, the game calculation unit 100 detects the missile launch, and as shown in FIG. There may be a game effect in which the chaff 312 is released from the enemy fighter 532.

With this chaff 312, the missile 582
Whether or not is disturbed depends on the probability, and this probability depends on the game level. If disturbed, missile 58
2 aims at the chaff 312 and is shown in FIGS. 11 (A), (B),
As shown in (C), they are sequentially tracked and explode at the point of chaff 312.

Further, the effective range of the Vulcan shown in FIG. 8 is 5
When the enemy fighter 532 is positioned within the range of 62, the Balkan gun sight 32 is displayed at the center of the game screen 300 as shown in FIG.
0 is displayed. Aiming at the enemy fighter 532 using this Balkan gun sight 320 and operating the trigger button 22 for the Balkan gun, the Balkan gun is fired toward the enemy fighter 532 as shown in FIG. 10, and this is shot down. can do.

In the left corner of the game screen 300,
The radar 340 that displays the position of the enemy fighter 532, the remaining number of the attacking item 350 that is held in the lower right corner are displayed, and the remaining game time 330 is displayed in the upper right corner.

Further, in the game apparatus of this embodiment, the game space calculation unit 110 is provided with a hit determination unit 120 for performing the hit determination operation of the Vulcan gun and the missile.

[0071] The hit judging unit 120 compares the position P ₂ of the bullet 580 and missile 582 Vulcan cannon emitted from fighters 530 players, and a position P ₁ of the enemy fighter 532 is the target, the It is configured to make a hit decision.

When a Balkan gun or a missile hits an enemy, the production of an explosion or the like is performed visually and audibly.

By the way, in this kind of game, the fun of the game is how to perform the hit check operation between the bullet shot by the player and the target, and how to produce the damage to the opponent depending on the hit condition. It becomes a big factor that influences. A rough hit check reduces the fun of the game in half.

Therefore, the hit determination unit 120 of the embodiment is
A damage area setting unit 122 that sets a plurality of damage areas that define damage amounts of different ranks with respect to the target based on the coordinate position P ₁ of the enemy in the three-dimensional game space 500, and an attack position with respect to the target are A damage calculation unit 124 that calculates the damage to the target based on which rank of the damage area is included.

FIG. 12A shows a specific example of the damage area for the enemy fighter 532. In the embodiment, as the damage area, a plurality of cubes centering on the center of the body are used as the first and second hit check boxes 7.
00 and 710 are set, and damage determination is performed. Here, the second hit check box 710 is formed small, the first hit check box 700 is formed large, and the second hit check box 710 is set to be included in the first hit check box 700. The first hit check box 700 is set larger than the actual size of the enemy fighter 532 in order to facilitate shooting.
A large amount of damage is set to the second hit check box 710 located on the center side, and a relatively small amount of damage is set to the first hit check box 700 located outside. .

As described above, the damage area setting unit 122 of the embodiment includes the hit check box 700 with a small damage amount and the hit check box 710 with a large damage amount, and the center position P of the target enemy fighter 532 is included. The ranks of the hit check boxes 700 and 710 are set so that the damage amount increases as the value approaches ₁ .

The damage calculation unit 124 also damages the target enemy fighter 532 based on which rank of the hit check box includes the attack position of the attack item against the target enemy fighter 532. Is configured to calculate. In the present embodiment, the damage determination is slightly different between when the Balkan gun is used as the attack item and when the missile is used.

FIG. 12 (B) shows the damage determination operation using the Vulcan gun, and FIG. 12 (C) shows the damage determination operation using the missile.

First, the damage determination operation using the Vulcan gun will be described. FIG. 12B shows hit check boxes 700 and 710 of an enemy fighter (not shown) that is attacked by a Balkan gun. The player fires a Vulcan gun at an enemy fighter (not shown),
The loci of 80 are 580-1, 580-2 as shown in FIG.
It is assumed that the order of movement is 580-3. At this time, the damage calculation unit 124 calculates the damage in the enemy fighter 532, which is the target, based on which rank of the hit check boxes the movement path of the bullet 580 passes through. For example, when the movement path of the bullet 580 does not pass through each of the hit check boxes 700 and 710, it is determined that the bullet has come off, and the damage is not calculated.

When the movement path of the bullet 580 passes through the first hit check box 700, the damage calculation unit 124 determines whether the trajectory of the bullet next passes through the second hit check box 710. I do. When it is determined that the second hit check box 710 is not passed, it is determined that only the first hit check box 700 is passed, and a small damage amount calculation setting is performed. When it is determined that the second hit check box 710 is passed, it is determined that the enemy fighter 532 is hit at a portion closer to the center of the body of the enemy fighter 532, and a large amount of damage calculation is set.

In addition, the damage calculation unit 124, in principle, also performs damage calculation in the same manner as the hit check operation of the Vulcan gun even when the missile 582 toward the enemy fighter 532 is launched. That is, the missile 5
When the enemy fighter 532 hits the enemy fighter 532, the game operation is performed so that the enemy fighter explodes at the hit position. Then, different damage amount calculation settings are made based on which of the first and second hit check boxes the explosion belongs to.

The concept of the explosion radius is also set in the missile 82. For example, as shown in FIG. 11, when the enemy fighter 532 drops a chaff 312 and a missile collides with the chaff 312 and explodes, the explosion position is the first and second hit check boxes 700, 71.
It is not included in any of 0.

Even in this case, the first and second hit check boxes 700 and 7 are located within the radius of r from this explosion position.
It is determined whether any of 10 exists, and the calculation setting of the damage amount is performed.

As a matter of course, when the Vulcan gun or the missile hits the same hit check box, the damage of the missile is larger than that of the Vulcan gun and the damage is set. Even when the same missile explodes, the amount of damage when the missile 582 explodes outside the hit check box as shown in FIG. 12C is smaller than that when it explodes inside the hit check box. It goes without saying that it will be set small.

Then, the game space calculation unit 110 of the embodiment.
When a missile or Vulcan gun hits an enemy, it visually and audibly directs hits such as large and small explosions and smoke.

Further, the enemy fighter 532 has a durability which is determined by the amount of damage received before, and the greater the damage received before is, the lesser the durability is. Therefore, even if the enemy aircraft that has once been hit and has deteriorated in durability and an enemy that has not yet been hit, different hit effects are performed even if the same hit is received next time, a more realistic game screen is displayed. Will be done.

FIG. 14 is a game screen displaying the state of the enemy aircraft being hit. The effect screens when a large amount of damage is received are shown in order from FIG.

When the enemy aircraft is damaged by a missile or a vulcan, an effect of hitting is made according to the amount of damage. The performance of the enemies hit will decrease depending on the amount of damage, and the rotational movement will slow down.

When the damage amount is small, FIG.
As shown in, an effect is produced such that a small amount of white smoke is emitted. When the damage is increased, a fire is produced as shown in FIG.

When the damage exceeds a certain amount, a small explosion shown in FIG. 9C and a medium explosion shown in FIG. Basically, small and medium explosions occur randomly,
The probability varies depending on the situation such as course selection, stage, remaining time, and enemy strength.

Then, when the enemy's durability becomes zero, the explosion screen shown in FIG.

FIG. 13 shows a flow chart of the hit determination operation and the damage effect operation of the apparatus of the embodiment.

In order to simplify the description, a case where a Vulcan gun hit check is performed will be described as an example.

First, the player operates the fighter 530,
The enemy fighter 532 is shown in FIG.
Let's assume that you have taken it near 0 and fired a Balkan gun.

FIG. 7 shows the player fighter 530 at this time.
Enemy fighter 53 when the origin of the viewpoint coordinate system is
A three-dimensional coordinate position P ₁ of 2, the relationship between the three-dimensional coordinate position P ₂ of the bullet 580 of the emitted Vulcan cannon is shown.

When the Balkan gun is fired in this manner, the damage calculation unit 124 hits the enemy fighter 532 shown in FIG. 12A based on the current coordinate position P ₂ of the fired bullet 580. It is detected whether the check boxes 700 and 710 have been passed.

As shown in FIG. 12B, the bullet 580 has five
First hit check box 700, like 80-1
When it's outside the box, it doesn't detect a hit yet
Check box 7 for the second hit, as in 580-2
When it comes inside 00, a hit is detected.

For the following description, the hit check with the first hit check box 700 is called the first hit judgment, and the hit check with the second hit check box 710 is called the second hit judgment. The outputs when hitting each are called the first hit signal and the second hit signal, and the outputs when they are missed are called the first off signal and the second off signal.

In the first hit determination, the coordinates P _{2 of the} bullet 580 and the hit check box 7 in the world coordinate system are shown.
The hit check operation is performed by comparing the difference between the X, Y, and Z coordinate data of the center of 00 with predetermined reference values of the X coordinate, Y coordinate, and Z coordinate for the first hit determination. Here, since the center of the aircraft and the center of the first hit check box 700 are coincident with each other, the X, Y, Z coordinate data of the enemy fighter 532 is set to the X of the center P ₁ of the first hit check box 700. , Y, Z coordinate data.

The coordinate of the center of the first hit check box 700 is P ₁ (X ₁ , Y ₁ , Z ₁ ), and the coordinate of the bullet 580 is P.
₂ (X ₂ , Y ₂ , Z ₂ ), first hit check box 7
If one side of 00 is 2a ₁ , X for the first hit determination is
The coordinate, Y coordinate, and Z coordinate reference values are a ₁ , and the bullet 58
The coordinate P _{2 of} 0 is the first hit check box 70.
When inside 0, the following relation holds.

| X ₂ − X ₁ | ≦ a ₁ (1) | Y ₂ − Y ₁ | ≦ a ₁ … (2) | Z ₂ − Z ₁ | ≦ a ₁ … (3) Game screen is 1 / Since it is configured to be supplied to the display every 60 seconds, the game calculation unit 100
/ Every 60 seconds, the coordinate P in the world coordinate system of the moving body
The values of ₁ (X ₁ , Y ₁ , Z ₁ ) and P ₂ (X ₂ , Y ₂ , Z ₂ ) are calculated. When the bullet is fired by the trigger operation, the damage calculation unit 124 checks whether the values of the bullet and each object satisfy the above relationships (1) to (3). The first hit signal is output when all of the above conditions are satisfied (step 10).

If not satisfied, the above-mentioned hit check operation is repeated every 1/60 seconds until the possibility of hit disappears. If the opponent is a moving body such as an enemy fighter, the possibility of hit is determined by the positional relationship of the moving body in consideration of future trajectory and movement. That is, as shown in FIG.
When 0 reaches the position of 580-3, there is no possibility of hit. If it is not a moving body, it is considered that there is no possibility of hit if it is calculated that the future trajectory will leave the opponent. Thus, when it is determined that there is no possibility of hitting, the first off signal is output (step 1
0).

In the first hit determination, if the trajectory is calculated in advance and the above-mentioned hit check operation is performed only for the objects that may be hit, the load on the CPU is reduced. Then, when the first hit signal is output by the first hit determination, and it is determined that there is no possibility that the trajectory collides with the enemy fighter (step 12), a normal game effect is performed (step 22).

The first hit signal is output by the first hit determination, and the bullet 580 hits the check box 700.
If it is determined that the second hit check box 710 is hit by the bullet 580, a second hit determination is performed (step 1).
4).

In the second hit judgment, the same hit check operation is performed in principle as in the first hit judgment. However, as shown in FIG. 12B, whether the bullet 580 also passes the second hit check box 710 within a short time while the bullet 580 passes the first hit check box 700 as shown in FIG. 12B. Since this is a check, the hit check operation described above is repeated in a cycle shorter than the first hit judgment. That is, 580 bullets and 53 of enemy fighters
The hit check operation is performed by dividing each 1/60 second into shorter cycles according to the coordinate value every 1/60 second of 2 and its motion state to obtain each coordinate value.

The coordinates of the centers of the hit check boxes 700 and 710 are P ₁ (X ₁ , Y ₁ , Z ₁ ), and the coordinates of the bullet 580 thus obtained are P ₂ (X ₂ , Y ₂ , Z ₂ ). If one side of the hit check box 710 is 2a ₂ , the X-coordinate, Y-coordinate, and Z-coordinate reference values for the second hit determination are a.
_When the coordinate P _{2 of the} bullet 580 is inside the second hit check box 710, the following relationship holds.

│X ₂ -X ₁ │≤a ₂ (4) │Y ₂ -Y ₁ │≤a ₂ (5) │Z ₂ -Z ₁ │≤a ₂ (6) And the damage calculator 124 Outputs a second hit signal when all of the relationships (4) to (6) are satisfied, and repeats the hit check operation until the possibility of hit disappears when all of the above relationships (4) to (6) are satisfied. Then, when it is determined that there is no possibility of hitting, the second off signal is output.

The second hit signal is output by the second hit determination, and the bullet 580 is hit by the second hit check box 710.
If it is determined that the player has hit the target (step 16), a large damage effect (step 18) is performed, and a large damage effect screen as shown in FIG. 14B is displayed.

If the second hit signal is output by the second hit determination and only the first hit check box 700 is hit (step 16), a small damage effect is produced (step 20), and FIG. A small damage effect screen as shown in (A) is displayed.

In this way, it is checked whether or not the bullet 580 hits the hit check boxes 700 and 710 of either large or small, and the hit check box 71
When 0 is hit, the opponent is inflicted large damage, when only the hit check box 700 is hit, inflicting small damage to the opponent, otherwise it is 580 bullets.
Does not deal damage as long as it is not hit.

In this way, the hit check box 70
When 0 and 710 are cubes, the hit check is performed only by adding / subtracting the coordinate values and determining the size, so that the data processing amount can be significantly reduced and the load on the CPU can be reduced. Further, although a cube is used in this embodiment, the same effect can be obtained by using a rectangular parallelepiped.

Although the difficulty of shooting depends on the size of the hit check box, the hit check box 700 is set larger than the size of the actual machine in order to reduce the difficulty of shooting in this embodiment. Therefore, even a beginner is likely to hit the hit check box 700, and it is unlikely that the game ends without being hit at all. Further, since the advanced player has different damage effects depending on the degree of hit, he / she can enjoy the game in which his / her arm is accurately reflected.

If the difficulty level of the game can be selected, in the case of a beginner, the hit check box of the enemy machine can be made larger and easier to hit, and the hit check box of the player machine can be made smaller and harder to hit. , For advanced users, the opposite may be done.

Further, since the hit check box is centered on the center of the machine, the rotation of the machine can be used as it is for the rotation of the cube. However, rotating the hit check box itself increases the calculation load, but the apparent visual effect of the game. In this embodiment, the rotation is not performed in accordance with the attitude of the machine body, and the center coordinate of the machine body is fixed because the effect is weak.

The present invention is not limited to the above embodiments, and various modifications can be made within the scope of the gist of the present invention.

In the above embodiment, the case where each damage area is set as a hit check box having a cubic shape has been described as an example, but the present invention is not limited to this and may be formed in various shapes as necessary. it can. In particular, this damage area is preferably set in a three-dimensional shape that can be spatially easily calculated, and can be formed in a spherical shape, for example.

Further, in each of the above-mentioned embodiments, this setting is made so that the damage area with the large damage amount is included in the damage area with the small damage amount. However, the present invention is not limited to this, and a plurality of different ranks are included. The damage areas may be arranged so that they are adjacent to each other, or part of them may be set to overlap.

For example, the engine section may be provided with another hit check box, or the wing section may be provided with another hit check box to produce different effects.

[0119]

As described above, according to the present invention,
In a game in which an attack is made on a target appearing in a three-dimensional game space, the player's operation is reflected in detail in the damage effect, and there is an effect that it is possible to provide a three-dimensional game device capable of a highly realistic and interesting game.

[0120]

[Brief description of drawings]

FIG. 1 is an external perspective view of a game device according to an embodiment.

FIG. 2 is an external perspective view of the game device of the embodiment.

FIG. 3 is a functional block diagram of the game device of the embodiment.

FIG. 4 is a schematic diagram of a three-dimensional game space and an explanatory diagram of a game screen according to the embodiment.

FIG. 5 is a schematic diagram showing an example of a three-dimensional object represented by a set of polygons.

FIG. 6 is an explanatory diagram of a synthesizing principle of a secondary three-dimensional game image according to the embodiment.

FIG. 7 is an explanatory diagram showing a positional relationship between a player and a target in a three-dimensional game space.

FIG. 8 is an explanatory diagram of a missile maximum range, a Vulcan effective range distance, and the like in a three-dimensional space.

FIG. 9 is a more detailed explanatory diagram of the game screen of the embodiment.

FIG. 10 is an explanatory diagram of a game screen when an enemy is attacked with a Balkan gun.

FIG. 11 is an explanatory diagram showing a state in which an enemy fighter attacked by a missile has dropped chaff flare.

FIG. 12 is an explanatory diagram of a hit check box for damage determination according to the present embodiment.

FIG. 13 is a flowchart showing a hit determination operation and a damage effect operation of the apparatus of the embodiment.

FIG. 14 is an explanatory diagram of a damage effect screen of an enemy fighter.

[Explanation of symbols]

30 display 40 Operation part 100 game operation unit 110 Game Space Arithmetic Unit 120 Hit judgment section 122 Damage Area Setting Section 124 Damage calculator 200 Image synthesizer 220 Three-dimensional operation unit 240 Image drawing unit 260 object image information storage unit

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A63F 13/00-13/12 A63F 9/24

Claims (10)

(57) [Claims] 1. A provisional game based on an input signal from a game operating means operated by a player and a predetermined game program.
In a three-dimensional game device including a game calculation means for performing a game calculation for attacking a target appearing in the three-dimensional game space, and displaying a game screen of the virtual three-dimensional game space on a display, the game calculation means includes damage area setting means for setting a plurality of damage areas that define the amount of damage different ranks to put that before Symbol target in the virtual 3-dimensional game space, attack position relative to the target, the damage which ranks A three-dimensional game device comprising: damage calculation means for calculating damage received by the target based on whether it is included in an area, and performing a game effect based on the damage amount of the target. 2. The game calculation means according to claim 1, wherein an input signal from the game operation means and a predetermined game.
Based on the program, on the coordinates in the virtual 3D game space
Fire a predetermined attack item against the target located at
The damage calculation means is configured to calculate the damage received by the target based on which rank of the damage area the attack position of the attack item against the target is included in. A three-dimensional game device characterized by the above. 3. The damage calculation means according to claim 2, wherein the damage calculation means is configured to calculate the damage received by the target based on which rank of the damage area the movement route of the attacking item passes through. Characterized by 3
Dimensional game device. 4. The damage calculation unit according to claim 2, wherein the damage calculation unit receives damage to the target based on which rank of the damage area the explosive effect area of the attack item reaches. A three-dimensional game device, characterized in that it is formed so as to calculate. 5. The damage area setting means according to any one of claims 1 to 4, wherein a damage area with a large damage amount is included in a damage area with a small damage amount, and the damage amount increases as it approaches the center of the target. A three-dimensional game device, wherein the damage areas of the plurality of ranks are set so that 6. The damage calculation means according to claim 5, wherein the rank of the damage area includes an attack position for the target in order from a rank having a smaller damage amount. Dimensional game device. 7. The three-dimensional game device according to claim 1, wherein the damage area setting unit sets each of the damage areas in a rectangular parallelepiped shape. 8. The three-dimensional game device according to claim 1, wherein the damage area setting means sets each damage area in a spherical shape. 9. Any one of claims 2 to 4 and claims 2 to 4.
9. The game operating means according to any one of claims 5 to 8 , further comprising: trigger operating means for firing the predetermined attack item.
The game calculation means is based on an input signal from the game operation means, and the virtual 3
A player moving body moves in the three-dimensional game space, and based on an operation signal from the trigger operating means, the player moving body shoots an attacking item toward a moving target or a stationary target appearing in the game space. A three-dimensional game device characterized by the above. 10. Based on an input signal from a game operating means operated by a player and a predetermined game program,
A method of controlling a three-dimensional game device for performing game operation target appearing in a virtual three-dimensional game space with respect to an attack, define the amount of damage different ranks over the previous SL targets that put in the virtual 3-dimensional game space A damage area setting step of setting a plurality of damage areas, and a damage calculation step of calculating damage received by the target based on which rank of the damage area the attack position with respect to the target is included in. And a method for controlling a three-dimensional game device.