machineguncommand.java

来自「J2ME飞机设计游戏,希望对学习J2ME的程序员有所帮助」· Java 代码 · 共 20 行

public class MachineGunCommand implements Command {
	public MachineGunCommand() {
		world = World.getInstance();
		planeActor = BattlePlaneActor.getInstance();
	}

	public void execute(int xPos, int yPos) {
		if (planeActor.getBattle_magic() >= 40) {
			for (int i = 0; i < 4; i++)
				world.newBullet(8, xPos, yPos - ((32 + i * 10) << 8), 0,
								4 << 8);

			planeActor.setBattle_magic(planeActor.getBattle_magic() - 40);
		}
	}

	private World world;
	private BattlePlaneActor planeActor;
}