hidingplane.java

J2ME飞机设计游戏,希望对学习J2ME的程序员有所帮助

public class HidingPlane extends Actor {
	public HidingPlane(){
		world = World.getInstance();
	}
	
	public void initData() {
		super.initSpiritDate("/hidingPlane.bin", "/hidingPlane.png",
				"/hidingPlaneCom.bin");
		
		initXYSpeed();
	}
	
	public void initCenterXY(){
		this.angle = 180;
		iCenterX = Tool.getCenterX(getIPosX(),angle,radius);
		iCenterY = Tool.getCenterY(getIPosY(),angle,radius);
	}

	public void changeMyState(){
		int [] data = getIProcessData();
		if(processCount <  getIProcess()){
			if (++processTimeCount <= data[processCount * 3 + 0]) {
				int orbitType = data[processCount * 3 + 1];
				int bulletType = data[processCount * 3 + 2];
				updateXY(orbitType,bulletType);
			} else {
				processCount++;
				processTimeCount = 0;
			}
		}
	} 
	
	public void updateXY(int orbitType,int bulletType){
		int xPos = getIPosX();
		int yPos = getIPosY();
		int speed = getSpeed() << 8;
		switch(orbitType){
		case 27: //
			angle += 3;
			setIPosX(iCenterX + radius*Tool.cos(angle));
			setIPosY(iCenterY - radius*Tool.sin(angle));
			break;
		case 0:  //原地不动
			if(processTimeCount == 1){
				for (int idx = 0; idx < 3; idx++) {
					world.newBullet(bulletType, xPos, yPos + (5 << 8),
							xSpeed[idx], ySpeed[idx]);
				}
			}
			break;
		case 6: //向右
			setIPosX(xPos + speed);
			break;
		}
	}
	
	private void initXYSpeed() {
		// 已310度到230度的角
		xSpeed = Tool.getXSpeedByAngle(310,3,40,4);
		ySpeed = Tool.getYSpeedByAngle(310,3,40,4);
	}
	
	private int angle = 0;	
	private int radius = 128; //半径
	
	/**曲线的中心点位置*/
    private int iCenterX;
    
    /**曲线的中心点位置*/
    private int iCenterY;
    
    private int [] xSpeed = new int[3];
	private int [] ySpeed = new int [3];

	private World world;
}