tank.java

坦克大战的JAVA代码版

import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class Tank {

	public static final int XSPEED = 5;
	public static final int YSPEED = 5;
	public static final int WIDTH = 30;
	public static final int HEIGHT = 30;

	TankClient tc;
	
    private boolean bGood;
    
    private boolean live=true;
    
    private int life=100;
    private BloodBar bb=new BloodBar();
    
	private int x, y;
	private int oldX,oldY;
	
	private int step=r.nextInt(15)+3;
	
	private static Random r=new Random();
	
	private boolean bL = false, bU = false, bR = false, bD = false;

	enum Direction {
		L, LU, U, RU, R, RD, D, LD, STOP
	};

	private Direction dir = Direction.STOP;
	private Direction ptDir = Direction.D;

	public int getLife() {
		return life;
	}

	public void setLife(int life) {
		this.life = life;
	}

	public boolean isBGood() {
		return bGood;
	}

	public boolean isLive() {
		return live;
	}

	public void setLive(boolean live) {
		this.live = live;
	}

	public Tank(int x, int y,boolean bGood) {
		this.x = x;
		this.y = y;
		this.oldX=x;
		this.oldY=y;
		
		this.bGood=bGood;
	}

	public Tank(int x, int y,boolean bGood,Direction dir, TankClient tc) {
		this(x, y, bGood);
		this.dir=dir;
		this.tc = tc;
	}
	private void stay(){
		x=oldX;
		y=oldY;
	}

	public void draw(Graphics g) {
		if(!live){ 
			if(!bGood){
				tc.tanks.remove(this);
				
			}
			
			return;
			 }
		
		Color c = g.getColor();
		if(bGood) g.setColor(Color.PINK);
		else g.setColor(Color.YELLOW);
		g.fillOval(x, y, WIDTH, HEIGHT);
		g.setColor(c);
		if(bGood)bb.draw(g);

		switch (ptDir) {
		case L:
			g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x, y
					+ Tank.HEIGHT / 2);
			break;
		case LU:
			g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x, y);
			break;
		case U:
			g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH
					/ 2, y);
			break;
		case RU:
			g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH,
					y);
			break;
		case R:
			g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH,
					y + Tank.HEIGHT / 2);
			break;
		case RD:
			g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH,
					y + Tank.HEIGHT);
			break;
		case D:
			g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x + Tank.WIDTH
					/ 2, y + Tank.HEIGHT);
			;
			break;
		case LD:
			g.drawLine(x + Tank.WIDTH / 2, y + Tank.HEIGHT / 2, x, y
					+ Tank.HEIGHT);
			break;

		}
		move();
	}

	void move() {
		
		this.oldX=x;
		this.oldY=y;
		
		switch (dir) {
		case L:
			x -= XSPEED;
			break;
		case LU:
			x -= XSPEED;
			y -= YSPEED;
			break;
		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 STOP:
			break;
		}
		if (dir != Direction.STOP) {
			this.ptDir = this.dir;

		}
		if(x<0) x=0;
		if(y<30) y=30;
		if(x+Tank.WIDTH>TankClient.GAME_WIDTH) x=TankClient.GAME_WIDTH-Tank.WIDTH;
		if(y+Tank.HEIGHT>TankClient.GAME_HEIGHT)y=TankClient.GAME_HEIGHT-Tank.HEIGHT;
	if(!bGood){
		Direction[] dirs=Direction.values();
		if(step==0){
			step=r.nextInt(15)+3;
			int rn=r.nextInt(dirs.length);
			dir=dirs[rn];
		}	
		step--;
		
		if(r.nextInt(40)>38){
		this.fire();
		}
	}
	}

	public void KeyPressed(KeyEvent e) {
		int key = e.getKeyCode();
		switch (key) {
		case KeyEvent.VK_F2:
			this.live=true;
			this.life=100;
			break;
		case KeyEvent.VK_LEFT:
			bL = true;
			break;
		case KeyEvent.VK_UP:
			bU = true;
			break;
		case KeyEvent.VK_RIGHT:
			bR = true;
			break;
		case KeyEvent.VK_DOWN:
			bD = true;
			break;
		}
		locateDirection();
	}

	void locateDirection() {
		if (bL && !bU && !bR && !bD)
			dir = Direction.L;
		else if (bL && bU && !bR && !bD)
			dir = Direction.LU;
		else if (!bL && bU && !bR && !bD)
			dir = Direction.U;
		else if (!bL && bU && bR && !bD)
			dir = Direction.RU;
		else if (!bL && !bU && bR && !bD)
			dir = Direction.R;
		else if (!bL && !bU && bR && bD)
			dir = Direction.RD;
		else if (!bL && !bU && !bR && bD)
			dir = Direction.D;
		else if (bL && !bU && !bR && bD)
			dir = Direction.LD;
		else if (!bL && !bU && !bR && !bD)
			dir = Direction.STOP;
	}

	public void keyReleased(KeyEvent e) {
		int key = e.getKeyCode();
		switch (key) {
		case KeyEvent.VK_CONTROL:
			fire();
			break;
		case KeyEvent.VK_LEFT:
			bL = false;
			break;
		case KeyEvent.VK_UP:
			bU = false;
			break;
		case KeyEvent.VK_RIGHT:
			bR = false;
			break;
		case KeyEvent.VK_DOWN:
			bD = false;
			break;
		case KeyEvent.VK_A:
		    superFire();
		    break;
		}
		locateDirection();
	}

	public Missile fire() {
		if(!live) return null;
		int x = this.x + Tank.WIDTH / 2 - Missile.WIDTH / 2;
		int y = this.y + Tank.HEIGHT / 2 - Missile.HEIGHT / 2;
		Missile m = new Missile(x, y, bGood, ptDir,this.tc);
		tc.missiles.add(m);
		return m;
	}
	public Missile fire(Direction dir){
		if(!live) return null;
		int x = this.x + Tank.WIDTH / 2 - Missile.WIDTH / 2;
		int y = this.y + Tank.HEIGHT / 2 - Missile.HEIGHT / 2;
		Missile m = new Missile(x, y, bGood, dir,this.tc);
		tc.missiles.add(m);
		return m;
	}

	public Rectangle getRect() {
		return new Rectangle(x,y,WIDTH,HEIGHT);
	}
	public boolean collidesWithWall(Wall w){
		if(this.live&& this.getRect().intersects(w.getRect())){
			this.stay();
			return true;
		}
		return false;
	}
	public boolean collidesWithTank(java.util.List<Tank>tanks){
		for(int i=0;i<tanks.size();i++){
			Tank t=tanks.get(i);
		if(this!=t){	
		if(this.live&& this.getRect().intersects(t.getRect())){
			this.stay();
			t.stay();
			return true;
		}
		}
		}
		return false;
	}
	private void superFire(){
		Direction[]dirs =Direction.values();
		for(int i=0;i<8;i++){
			fire(dirs[i]);
		}
	}
	private  class BloodBar{
		public void draw(Graphics g){
			Color c=g.getColor();
			g.setColor(Color.BLUE);
			g.drawRect(x, y-10, WIDTH, 10);
			int w=WIDTH*life/100;
			g.fillRect(x, y-10, w, 10);
			g.setColor(c);
		}		
	}
	public boolean eat(Blood b){
		if(b.isLive()&&this.live&& this.getRect().intersects(b.getRect())){
			this.life=100;
			b.setLive(false);
			return true;
		}
		return false;
	}
}