To provide a determining method of behavior of enemy planes for keeping difficulty levels constant in a shooting game.
In a shooting game processing method, a player's plane and the enemy planes are displayed on a screen, and a player manipulates the player's plane and combats with the enemy planes which shoot attacking ammunition moving in a specified velocity v. A moving direction of the enemy plane, velocity of the enemy plane, and a time interval T between shooting of the attacking ammunition are provided as behavior parameters. A behavior parameter determining means (30) determines a value of one of the three behavior parameters of the enemy plane acting and moving based on the predetermined other two parameters, so that a distance between an attacking ammunition A and an attacking ammunition B is a prescribed value when the ammunition A which is shot toward a target position a reaches the target position a. The ammunition B is shot toward a target position b after the time interval T from the time that the ammunition A is shot.
| JP2004000305A | 2004-01-08 | |||
| JPH08229240A | 1996-09-10 |
Taku Kusano
Yukio Nakamura
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