mytank.java

J2SE坦克大战源码 分为24个版本

import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.KeyEvent;


public class MyTank {
	
	int x,y;//坐标
	public static final int WI = 30;
	public static final int HE = 30;
	public static final int XSPEED = 5;//坦克移动速度
	public static final int YSPEED = 5;
	private boolean bU = false,bR = false,bD = false,bL = false;
	
	enum Direction {U,RU,R,RD,D,LD,L,LU,STOP};
	private Direction ptDir = Direction.D;
	
	TankClient tc;    //用于持有对方引用
	
	private Direction dir =Direction.STOP ;
	
	public MyTank(int x, int y) {
		this.x = x;
		this.y = y;
	} 
	
	public MyTank(int x, int y, TankClient tc) {  //方便MyTank访问TankClient中的变量
		this(x,y);
		this.tc = tc;
	}
	
	public void draw(Graphics g){		//画出炮弹
		Color c = g.getColor();
		g.setColor(Color.RED);
		g.fillOval(x, y, WI, HE);
		g.setColor(c);		
		
		switch(ptDir){              //用一直线模拟炮筒，画出其方向
		case U:
			g.drawLine(x + MyTank.WI/2,y + MyTank.HE/2,x + MyTank.WI/2,y);
			break;
		case RU:
			g.drawLine(x + MyTank.WI/2,y + MyTank.HE/2,x + MyTank.WI,y);
			break;
		case R:
			g.drawLine(x + MyTank.WI/2,y + MyTank.HE/2,x + MyTank.WI,y + MyTank.HE/2);
			break;
		case RD:
			g.drawLine(x + MyTank.WI/2,y + MyTank.HE/2,x + MyTank.WI,y + MyTank.HE);
			break;
		case D:
			g.drawLine(x + MyTank.WI/2,y + MyTank.HE/2,x + MyTank.WI/2,y + MyTank.HE);
			break;
		case LD:
			g.drawLine(x + MyTank.WI/2,y + MyTank.HE/2,x,y + MyTank.HE);
			break;
		case L:
			g.drawLine(x + MyTank.WI/2,y + MyTank.HE/2,x,y + MyTank.HE/2);
			break;
		case LU:
			g.drawLine(x + MyTank.WI/2,y + MyTank.HE/2,x,y);
			break;
		case STOP:		
			break;
		}
		if(dir != Direction.STOP){
			ptDir = this.dir;
		}
		
		move();
	}
	
	public Missile fire(){			//开炮方法
		int x = this.x + MyTank.WI/2 - Missile.WI/2;
		int y = this.y + MyTank.HE/2 - Missile.HE/2;
		Missile m = new Missile(x,y,ptDir);
		return m;
	}
	
	public void keyreleased(KeyEvent e){//当键盘按下
		int key = e.getKeyCode();
		switch(key){
		case KeyEvent.VK_UP:
			bU = false;
			break;
		case KeyEvent.VK_RIGHT:
			bR = false;
			break;
		case KeyEvent.VK_DOWN:
			bD = false;
			break;
		case KeyEvent.VK_LEFT:
			bL = false;
			break;
		}
	}
	
	public void keypressed(KeyEvent e){//当键盘抬起
		int key = e.getKeyCode();
		switch(key){
		case KeyEvent.VK_UP:
			bU = true;
			break;
		case KeyEvent.VK_RIGHT:
			bR = true;
			break;
		case KeyEvent.VK_DOWN:
			bD = true;
			break;
		case KeyEvent.VK_LEFT:
			bL = true;
			break;
		case KeyEvent.VK_CONTROL:
			tc.m = fire();
			break;
		}
		Direct();
	}
	
	public void Direct() {//定义8个方向和一个stop状态
		if(!bU && !bR && !bD && !bL) dir = Direction.STOP;
		else if(bU && !bR && !bD && !bL) dir = Direction.U;
		else if(!bU && !bR && bD && !bL) dir = Direction.D;
		else if(!bU && !bR && !bD && bL) dir = Direction.L;
		else if(!bU && bR && !bD && !bL) dir = Direction.R;
		else if(bU && !bR && !bD && bL) dir = Direction.LU;
		else if(!bU && !bR && bD && bL) dir = Direction.LD;
		else if(!bU && bR && bD && !bL) dir = Direction.RD;
		else if(bU && bR && !bD && !bL) dir = Direction.RU;
	}
	
	public void move(){	//移动
		switch(dir){
		case U:
			y -= YSPEED;
			break;
		case RU:
			x += XSPEED;
			y -= YSPEED;
			break;
		case R:
			x += XSPEED;
			break;
		case RD:
			x += XSPEED;
			y += YSPEED;
			break;
		case D:
			y += YSPEED;
			break;
		case LD:
			x -= XSPEED;
			y += YSPEED;
			break;
		case L:
			x -= XSPEED;
			break;
		case LU:
			x -= XSPEED;
			y -= YSPEED;
			break;
		case STOP:		
			break;
		}
		
	}


	
	

}