enemybullet.java

简单的用Java做的小游戏主要是用了自己的框架来

package role;

import java.awt.Image;

import assistant.ComputDirection;
import assistant.PublicVar;
import assistant.MoveImageChange;

/**
 * 敌人子弹类
 * @author Administrator
 *
 */
public class EnemyBullet extends SportRole {
	
	/**敌人闪电子弹图像*/
	public static Image[][] ovalBulletImage;
	/**敌人风子弹图像*/
	public static Image[][] windBulletImage;
	/**敌人火子弹图像*/
	public static Image[][] fireBulletImage;
	
	/**boss子弹图像*/
	public static Image[][] bossBulletImage;
	
	/**子弹类型*/
	private int type;
	
	/**BOSS子弹移动数组*/
	private double[] dif;
	
	/**当前子弹组图*/
	private Image[] moveImage;
	
	/**图像切换对象*/
	private MoveImageChange imgChange =new MoveImageChange(3);
	
	/**临时X、Y坐标*/
	private double tempX,tempY;
	/**
	 * 构造方法
	 * @param x X坐标
	 * @param y Y坐标
	 * @param width 角色宽度
	 * @param height 角色高度
	 * @param state 子弹飞行方向状态
	 * @param type  子弹类型
	 */
	public EnemyBullet(int x,int y,
			int state,int type){
		super(x,y,0,0,state);
		this.speed = 8;
		this.type = type;
		this.tempX = x;
		this.tempY = y;

		this.setInitImage();//初始化
	}
	
	/**
	 * 设置图像切换数组初始值
	 *
	 */
	private void setInitImage(){
		if(type == 0){//闪电
			this.init(50, 50);
			this.moveImage =new Image[]{ovalBulletImage[0][0],
					ovalBulletImage[0][1],ovalBulletImage[0][2]};
		}
		else if(type == 1){//风
			this.init(40, 55);
			this.moveImage = new Image[]{windBulletImage[0][0],
					windBulletImage[0][1],windBulletImage[0][2]};
		}
		else if(type == 2){//boss
			this.init(36, 36);
			this.moveImage = new Image[]{bossBulletImage[0][0],
					bossBulletImage[0][1]};
			
			dif=ComputDirection.getDif(this.x, this.y, this.speed);
		}
		else if(type == 3){//火
			this.init(96, 93);
			
			if(this.state == PublicVar.LEFT){//根据状态决定图像数组
				this.moveImage = new Image[]{fireBulletImage[0][0],
						fireBulletImage[0][1],fireBulletImage[0][2],fireBulletImage[0][3]};
			}
			else{
				this.moveImage = new Image[]{fireBulletImage[1][0],
						fireBulletImage[1][1],fireBulletImage[1][2],fireBulletImage[1][3]};
			}
		}
	}
	
	/**
	 * 初始化大小
	 * @param width 初始宽
	 * @param height 初始高
	 */
	private void init(int width,int height){
		this.width=width;
		this.height=height;
		this.rect.width = this.width;
		this.rect.height = this.height;
	}
	
	
	@Override
	/**
	 * Method:         move
	 * Description:   覆盖父类移动方法
	 */
	public void move() {
		// TODO 自动生成方法存根
		this.img = imgChange.imageChange(moveImage);
		
		if(this.type != 2){
			if(this.type != 3){//如果不是火的图像
				switch(this.state){
				
				case PublicVar.LEFT://向左
					this.x-=this.speed;
					break;
				case PublicVar.RIGHT://向右
					this.x+=this.speed;
					break;
			
				}
			}
		}
		else{//BOSS子弹
			tempX+=dif[0];
			tempY+=dif[1];
			
			this.x=(int)tempX;
			this.y=(int)tempY;
		}
		this.removeThis();//超出屏幕自动移除
	}


}