JP2002035419A - Device and hit-check method for shooting game - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shooting game so as to display an afterimage in case of the movement of a target, similarly interesting both skilled and unskilled players by increasing a hit probability even in case of the movement of the target and permitting a score to vary according to the skill (the level of the skill and the hit probability) of the players. SOLUTION: The afterimage is displayed according to the movement of the target. Areas for a hit check are established in the main body and after-image of the target, respectively, and the hit check is conducted by using a bullet and the respective established areas when the bullet is shot. In addition, the size of the area for the hit check, the score, the amount of damage, and the like are made to vary with the above main body and the plural after-images, respectively, and permitted to vary in accordance with the hit probability of the player.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shooting type game apparatus and a hit check method in a shooting type game, and more particularly to a technique for performing a hit check on an afterimage of an object to be hit checked.

[0002]

2. Description of the Related Art Conventionally, a so-called shooting type game in which a target is displayed on a screen, and a controller is operated to aim at the target on the screen to shoot and compete for a score has been known. In shooting games, for example,
Using a gun-type controller, aim the target displayed on the screen and trigger the gun. As a result, a bullet (hereinafter simply referred to as a bullet) is fired, and if this hits the target, the points are accumulated.

In such a shooting type game,
Since simply shooting at a stationary target can get tired of the player, the game offers a variety of situation settings and story-based scene settings to provide players with a more interesting game. Thus, in most cases, the target in the game space is moving and the player is configured to aim and shoot at the moving target. A moving target may be displayed with an afterimage (blurring). The blur is to display an afterimage at a position that is a predetermined frame before the current position of the moving target. A plurality of afterimages are displayed before a predetermined frame, before the predetermined frame, and so on. For each afterimage, the past afterimage has a smaller size, a lighter color, and a transparent feeling. In some cases, a deformed afterimage is displayed.

On the other hand, in such a game, a hit area for performing a hit check on a target object is set, and if a bullet shot by the player enters this hit area, it is determined that a hit has occurred. The hit area is provided fixedly on the target object, and no hit area is set for the afterimage.

[0005]

However, in some recent shooting games, the moving speed of the target object becomes extremely high. In such a game, it is difficult to aim at the object having a high moving speed, and the hit rate is low. There is a disadvantage that it goes down. When the hit rate goes down,
Players will not be able to enjoy the fun of the game. This is especially noticeable for beginners.

The present invention has been made in view of the above-mentioned problems in the prior art, and in a shooting-type game in which an afterimage is displayed when a target moves, even if the target moves, the hit rate is increased and the player is interesting. It is an object of the present invention to provide a shooting-type game device that feels like a game, and a hit check method in a shooting-type game. Also, by changing the score etc. according to the player's skill (skill level, hit rate), hit check in shooting type game device and shooting type game where high and low skill people feel the same fun The aim is to provide a method.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a target is displayed on a screen of a display means, and the target is shot by a virtual bullet firing operation by a controller of a player. A shooting type game device of the type, a means for displaying an afterimage according to the movement of the target, a means for setting a region for performing a hit check on the main body and the afterimage of the target, and when the bullet is fired, Means for performing a hit check between the bullet and each of the regions set in the main body and the afterimage.

According to a second aspect of the present invention, in the first aspect, each of the regions set in the main body and the afterimage has the largest size of the region of the main body. It is characterized in that the size is reduced or the size of the region of the main body is reduced to the smallest size, and the size of the region is increased as the afterimage becomes more past.

According to a third aspect of the present invention, in the first aspect, when a hit is made in each of the areas respectively set in the main body and the afterimage, the score or damage to be added is the first when the hit is made in the area of the main body. It is characterized in that it is large and becomes smaller as a past image remains, or becomes smaller when a region of the main body is hit and becomes larger as a past image remains.

According to a fourth aspect of the present invention, in the first aspect, the size, the score, and / or the size of each area set in the main body and the afterimage according to the hit rate of the player.
Alternatively, the amount of damage is dynamically changed.

A fifth aspect of the present invention is characterized in that, in the first aspect, the number of the afterimages is changed according to a hit rate of a player.

The invention according to claim 6 is a hit check method in a shooting type game in which a target is displayed on a screen of a display means and the target is shot by a virtual bullet firing operation by a player's controller, Displaying an afterimage in accordance with the movement of the target; setting a region for performing a hit check on the target body and the afterimage, respectively; setting the bullet, the main body, and the afterimage when the bullet is fired Performing a hit check with each of the selected areas.

According to a seventh aspect of the present invention, in the sixth aspect, each of the areas set for the main body and the afterimage has the largest size of the main body area. It is characterized in that the size is reduced or the size of the region of the main body is reduced to the smallest size, and the size of the region is increased as the afterimage becomes more past.

The invention according to claim 8 is the invention according to claim 6, wherein a score or damage to be added when hitting in each area set in the main body and the afterimage is the first when hitting in the area of the main body. It is characterized in that it is large and becomes smaller as a past image remains, or becomes smaller when a region of the main body is hit and becomes larger as a past image remains.

According to a ninth aspect of the present invention, in the sixth aspect, the size, the score, and / or the size of each area set in the main body and the afterimage are respectively set according to the hit rate of the player.
Alternatively, the amount of damage is dynamically changed.

According to a tenth aspect, in the sixth aspect, the number of the afterimages is changed according to a hit rate of the player.

[0017]

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

FIG. 1 shows a block configuration of a shooting type game apparatus according to an embodiment of the present invention. This apparatus includes a CPU (central processing unit) 101, an image synthesizing unit 10
2. Voice synthesis unit 103, random access memory (RA
M) 104, a storage medium 105, a display 106, an operation unit 107, and a gun-type controller 108. The present device can be configured as either a home game machine or an arcade game machine. In the case of a home game machine, a television is connected to the main body 100 as a display 106, and controllers 107 and 108 are connected. The game program is stored in the storage medium 105 (CD-RO
M and cartridge). When configured as an arcade game machine, the controller 107
And the display medium 106 and the storage medium 1
05 may be integrated into the main body. Storage medium 10
As 5, a ROM (Read Only Memory) is used, for example. Further, it can be configured using a general-purpose workstation or personal computer.

The CPU 101 is a processing device for controlling the operation of the entire device. The image synthesizing unit 102 includes a CPU 1
The game screen display data is synthesized based on the instruction from 01 and output to the display 106. Voice synthesis unit 103
Synthesizes voice data of the game based on an instruction from the CPU 101 and outputs the synthesized data to the display 106. The display 106 has not only a display function but also an audio output function. The RAM 104 is a memory used as an area for loading a program to be executed by the CPU 101 and a work area for data to be processed. Storage medium 105
Is a storage medium storing a game program and data to be executed by the CPU 101, such as an optical disc (CD,
DVD), magneto-optical disk (MO), magnetic disk, hard disk, magnetic tape, or memory (ROM)
It can be realized by such as. The operation unit 107 is an input device that is operated by a player to give an instruction to the apparatus.
The gun-type controller 108 includes a light-receiving element 111 and a trigger switch (trigger) 112, and is used for a player to perform an operation of shooting (trigger-on) aiming at a target on a screen in a shooting game.

The shooting type game stored in the storage medium 105 can be executed by the apparatus shown in FIG. this is,
A conventionally known target is displayed on the screen of the display 106, and a target is shot by the gun-type controller 108 to turn on a trigger to compete for a score. In the present apparatus, a target is displayed not only on its main body but also on an afterimage. Also, an area for hit check is set not only for the main body of the target but also for the afterimage, and the hit check is performed for the afterimage. This makes it easier to hit an enemy moving at a high moving speed, for example.

FIG. 2 shows an example of the afterimage display when the target moves in the present apparatus. Here, a spherical target will be described as an example. This target is moving from the right side of the figure to the left side. Therefore, the main body is displayed on the far left,
An afterimage 1 is displayed at a position before the predetermined frame, an afterimage 2 is displayed at a position before the predetermined frame, and an afterimage 3 is displayed at a position before the predetermined frame.
These afterimages are displayed with a smaller size, lighter color, and transparency as the afterimages displayed at positions in the past are displayed.

In the present apparatus, areas for hit checking are set for these afterimages 1 to 3, respectively. The size of the region is set to be smaller as the afterimage is in the past. Furthermore, when each afterimage is hit, the score and the amount of damage when each afterimage is hit are individually set. The damage and score when hitting each are described below the main body and each afterimage in FIG. When hitting the main body, damage = 100 and score = 1000. On the other hand, when the afterimage 1 hits, the damage is slightly reduced, and the damage = 60 and the score = 600. When the afterimage 2 is hit, the damage is further reduced, and the damage is set to 40 and the score is set to 400. When the afterimage 3 is hit, the damage is further reduced, and the damage is set to 20 and the score is set to 200.

In this way, even if an afterimage is hit, a score is obtained and the target can be damaged.
Also, since the score and amount of damage are changed between when hitting the main body and when each afterimage is hit, players who want to improve their skills to hit the part as close as possible to the current position (preferably the main part) It can evoke your feelings and be enjoyed by both beginners and experts.

Further, in the present apparatus, the hit rate of the player is measured during the game, and for the player with a high hit rate, the area for hit check of the afterimage portion is made small and fine, and the score at the time of hit is also reduced. A higher score is obtained, or only the main body is hit to obtain a high score, but no hit determination is performed in the afterimage portion. Conversely, for a player with a low hit rate, the area for hit check in the afterimage portion is made coarser, but the score at the time of hit is lowered. This allows
It is designed to be enjoyable according to each person's skill level.

FIG. 4 is a flowchart of a hit check process for realizing the above-described after-image hit check. The game program is loaded into the RAM 104,
When the game is started, the processing of FIG. 4 is repeatedly executed during the processing of the game program. In the processing of FIG. 4, the display of the target object A and its afterimage, a hit check on them, and a processing when a hit is performed are performed.

First, in step 401, a target main body object A is displayed. Next, at step 402, 1 is set to a variable n. In step 403, the position where the main body object A existed before n frames (n frames) is set as the position of the afterimage object Z_n. It should be noted that the object name of the afterimage of the main object A before the nth interface is called Z_n. In other words, the object name of the afterimage of the first interchange is Z_1, the object name of the afterimage of the second interchange is Z_2, the object name of the afterimage of the third interchange is Z_3, and the object name of the afterimage before the fourth interchange is Z_4.

In step 404, the afterimage object Z
The size, color, and transparency of _n are set as follows. Z_n size = ((kn + 1) / k) × A size Z_n color (R, G, B) = ((kn−1) / k) × A color (R, G, B) Z_n Transparency (α) = ((k−n + 1) / k) × A transparency (α)

The size, color, and transparency of the main body object A are predetermined. Further, k indicates the number of afterimage objects to be displayed on the main body, and k = 4 for the object A described here. The transparency α takes a value from 0 to 1, where 0 is transparent, 1 is opaque, and 0 <α.
<1 means translucent.

Next, at step 405, the afterimage object Z_n is displayed. The position is set in step 403, and the size, color, and transparency are set in step 404. Next, in step 406, it is determined whether or not the value of the variable n has become equal to the number of afterimage objects k.
If not equal, the variable n is incremented in step 407, and the next afterimage is displayed in step 403.
Return to

When the value of the variable n becomes equal to the number of afterimage objects k in step 406, in step 408,
Hit check-related data D_ of main body object A
A is read from the table T.

FIG. 3 shows the contents of the table T. The table T is a table that holds hit check relationship data between the main body object and the afterimage object. Such a table is prepared in advance for the target object. FIG. 3 illustrates data relating to the main body object A and its afterimage objects Z_1 to Z_4. The area size indicates the size of an area for a hit check set for each object. The points and damage indicate points and damage when hitting each object. The area size, the score, and the damage of the main body object are the largest, and smaller values are set as the afterimages become more past.

Returning to FIG. 4, in step 408, FIG.
Is to read the row data of the object A from the table T. The data in each row of the table T is represented by a symbol with D_ prefixed to the object name. Therefore, the row data of the object A in the table T is D_A, n = 1 to 4, and the object Z_n
Is referred to as D_Z_n.

After step 408, at step 409,
Based on the hit rate P of the player, the row data D_A is processed to obtain data D_A_P. Specifically, the area size is set to (1-0.5 × P) times, and the score at the time of hit is (1+
P) Double. Note that the hit rate P takes a value of 0 to 1 and is 0
Means 0% hit rate and 1 means 100% hit rate. Next, in step 410, a hit check process between the player's bullet and the object A is performed based on the data D_A_P. In step 411, it is determined whether the bullet shot by the player has hit the object A.

If a hit has occurred, the process proceeds to step 412, in which a damage effect such as an explosion is output to the object A, the score is added, and the damage is added to the total damage value of the object A. The points and the damage to be added are data D_A_P. Next, in step 413, it is determined whether the cumulative damage value of the object A has exceeded the upper limit value. If it has exceeded, at step 414, the destruction effect of object A is output,
The object A and the afterimages Z_1 to Z_k are deleted, and the process ends. In step 413, the object A
If the cumulative damage value of does not exceed the upper limit value, the process ends.

If the bullet shot by the player does not hit the object A in step 411,
Proceed to 15 to set 1 to a variable n. Next, in step 416, the row data D_Z_n related to the hit check of the afterimage object Z_n is read from the table T. In step 417, the data D_Z_n is processed to obtain data D_Z_n_P based on the hit rate P of the player. Specifically, the area size is set to (1−0.5 × P) times, and the score at the time of hit is set to (1 + P) times. Next, in step 418, a hit check process between the bullet of the player and the object Z_n is performed based on the data D_Z_n_P. In step 419, it is determined whether the bullet shot by the player has hit the object Z_n.

If a hit has occurred, the process proceeds to step 412, where a damage effect such as an explosion is output to the object A, the score is added, and the damage is added to the total damage value of the object A. The points and damage to be added are data of data D_Z_n_P.

If the bullet shot by the player does not hit the object Z_n in step 419, the process proceeds to step 420, and it is determined whether or not the value of the variable n has become equal to the number of afterimage objects k. If not equal, the variable n is incremented in step 421, and the process returns to step 416 to perform a hit check of the next afterimage. When the value of the variable n has become equal to the number k of afterimage objects, the processing ends.

As described above, a hit check can be performed on the main body and the afterimage.

In the above embodiment, each area for hit check set in the main body and the afterimage has the largest size of the area of the main body, and becomes smaller as the afterimage becomes more past. Conversely, the size of the region of the main body may be the smallest, and the larger the size of the past image, the larger the size. Also, the score or damage to be added is the largest when hitting the area of the main body,
Although the smaller the value, the smaller the image becomes in the past, the smaller the image may be, the smaller the image hits in the area of the main body, and the larger the image becomes in the past.

Also, according to the hit rate of the player,
The number of afterimages and thus the number of areas for hit check may be changed. For example, when a skilled player with a high hit rate is a player, the number of afterimages and corresponding areas is reduced to increase the difficulty of the game, and when a beginner with a low hit rate is a player, an afterimage is used. Alternatively, the number of areas corresponding thereto may be increased to reduce the difficulty of the game.

Further, according to a predetermined situation during the game, the size, the score, and / or the damage amount of the area set for the main body and the afterimage may be changed, or the number of the afterimage and the number of the area may be changed. Good.

It should be noted that the hit check for the object is not only performed on the object, but a simple object having substantially the same number of polygons as the object and having a small number of polygons may be generated, and the simple object may be used for the hit check.

In the above-described embodiment, the color of the afterimage object is made thinner and more transparent as the past image remains. However, the present invention is not limited to this, and the color and transparency may be arbitrarily changed.

The present invention is not limited to the above embodiment, but is applicable to all game machines that perform hit check processing.

[0045]

As described above, according to the present invention,
An area for hit check is set not only on the main body but also on the afterimage, and the hit check on the afterimage is performed.
Increasing the hit rate makes the game interesting for players. This is especially noticeable for beginners. In addition, since the score is changed according to the player's skill (skill level, hit rate), it is possible to enjoy the same level of skill from low to high.

[Brief description of the drawings]

FIG. 1 is a block diagram of a shooting-type game device according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of an afterimage when a target moves.

FIG. 3 is a diagram showing a table holding hit check-related data of an object;

FIG. 4 is a flowchart of a hit check process.

[Explanation of symbols]

101: CPU (Central Processing Unit), 102: Image Synthesizing Unit, 103: Voice Synthesizing Unit, 104: Random Access Memory (RAM), 105: Storage Medium, 106: Display, 107: Operation Unit, 108: Gun Type Controller

Claims (10)

[Claims] 1. A shooting type game machine of a type in which a target is displayed on a screen of a display means and the target is shot by a virtual bullet firing operation by a controller of a player, and an afterimage is displayed according to movement of the target. Means for setting a region for performing a hit check on the target body and the afterimage, and a hit check between the bullet and each of the regions respectively set on the main body and the afterimage when the bullet is fired. A shooting type game device comprising: 2. The shooting-type game apparatus according to claim 1, wherein each of the areas set for the main body and the afterimage has the largest size of the area of the main body, and the more the past image remains, the more the area becomes. Or reducing the size of the region of the main body, or reducing the size of the region of the main body to the smallest size, and increasing the size of the region as the past image becomes longer. 3. The shooting-type game apparatus according to claim 1, wherein when a hit is made in each of the areas set in the main body and the afterimage, a score or damage to be added is reduced by one when the hit is made in the area of the main body. A shooting-type game apparatus characterized in that it is the largest, the smaller the further the afterimage, or the smallest when the area of the main body is hit, and the larger the further the afterimage. 4. The shooting type game apparatus according to claim 1, wherein the size, the score, and / or the amount of damage of each area set in the main body and the afterimage are dynamically changed according to the hit rate of the player. A shooting type game apparatus characterized by changing. 5. The shooting type game apparatus according to claim 1, wherein the number of the afterimages is changed according to a hit rate of a player. 6. A hit check method in a shooting type game in which a target is displayed on a screen of a display means and the target is shot by a virtual bullet firing operation by a player's controller, wherein the target is moved according to the movement of the target. Displaying an afterimage; setting an area for performing a hit check on the target body and the afterimage, respectively; when the bullet is fired, the area of the bullet and each of the areas set on the main body and the afterimage, respectively, Performing a hit check. A hit check method in a shooting game, comprising: 7. The hit check method in a shooting game according to claim 6, wherein each of the areas set for the main body and the afterimage has the largest size of the area of the main body, and the past image remains. A hit check method in a shooting-type game, wherein the size of the region is reduced, or the size of the region of the main body is reduced to be the smallest, and the size of the region is increased as the afterimage becomes more past. 8. The hit check method in a shooting-type game according to claim 6, wherein, when a hit is made in each of the areas set in the main body and the afterimage, a score or damage to be added is hit in the area of the main body. A hit check method in a shooting-type game, characterized in that it is sometimes the largest and becomes smaller as the past image is left, or is made smaller when the area of the main body is hit and becomes larger as the past image is left. . 9. The hit check method in a shooting game according to claim 6, wherein a size, a score, and / or a damage amount of each area set in the main body and the afterimage are determined according to a hit rate of the player. A hit check method in a shooting game characterized by dynamically changing. 10. The hit check method in a shooting game according to claim 6, wherein the number of said afterimages is changed according to a hit rate of a player.