java 小项目 坦克游戏

import java.awt.*; import java.awt.event.*; import java.util.*; public class Tank { public static final int XSPEED = 3; public static final int YSPEED = 3; public static final int WIDTH = 30; public static final int HEIGHT = 30; private int x,y; private int oldX,oldY; private int life = 100; BloodBar bb = new BloodBar(); private boolean bL = false,bU = false,bR = false,bD = false; private boolean live = true; private boolean good; private int step = r.nextInt(15) + 3; //小于15随机数，为不使step为0，所以在后面加了3 TankClient tc; private static Random r = new Random(); enum Direction {L,LU,U,RU,R,RD,D,LD,STOP} private Direction dir = Direction.STOP; private Direction ptdir = Direction.D; public Tank(int x, int y, boolean good) { this.x = x; this.y = y; this.good = good; } public Tank(int x, int y, boolean good, Direction dir,TankClient tc) { this(x,y,good); this.tc = tc; this.dir = dir; } public void draw(Graphics g) { if(!tc.mh.isLife()) { tc.myTank.setLive(false); tc.myTank.setLife(0); } if(!live) { if(!good) { tc.enemytanks.remove(this); } return; } Color c = g.getColor(); if(good) g.setColor(Color.red); else g.setColor(Color.DARK_GRAY); g.fillOval(x, y,WIDTH, HEIGHT); g.setColor(c); if(good) 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(); } public void stay() { x = this.oldX; y = this.oldY; } 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(this.dir != Direction.STOP) { this.ptdir = this.dir; } if(x < 5) x = 5; if(y < 25) y = 25; 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(!good) { Direction[] dirs = Direction.values(); //将值转换为数组 if(step == 0) { step = r.nextInt(15) + 3; int rn = r.nextInt(dirs.length); dir = dirs[rn]; //给方向赋随机值 } step --; //为防止step减为0，加入了上面的if if(r.nextInt(40) > 36) { this.fire(); } } } public void keyPressed(KeyEvent e) { int key = e.getKeyCode(); switch(key) { 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_F1: if(tc.enemytanks.size() == 0) { for(int i=0;i<9;i++) { tc.enemytanks.add(new Tank(50 + 50*(i + 3),30 + 30*(i + 4),false,Tank.Direction.L,tc)); } } break; case KeyEvent.VK_F2: if(!this.live) this.live = true; this.life = 100; break; case KeyEvent.VK_S: superFire(); break; 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; } 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,good,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,good,dir,this.tc); tc.missiles.add(m); return m; } public void superFire() { Direction[] dirs = Direction.values(); for(int i=0;i<8;i++) { fire(dirs[i]); } } public Rectangle getRect() { return new Rectangle(x,y,WIDTH,HEIGHT); } public boolean isLive() { return live; } public void setLive(boolean live) { this.live = live; } public boolean isGood() { return good; } public void collidesWithWall(Wall w) { if(this.getRect().intersects(w.getRect())) { this.stay(); } } public void 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 && t.isLive() && this.getRect().intersects(t.getRect())) { this.stay(); } } } } public void collidesWithProtectWall(ProtectWall pw) { if(this.getRect().intersects(pw.getRect())) { this.stay(); } } public void collidesWithMyHome(MyHome mh) { if(this.getRect().intersects(mh.getRect())) { this.stay(); } } public int getLife() { return life; } public void setLife(int life) { this.life = life; } private class BloodBar { public void draw(Graphics g) { Color c = g.getColor(); g.setColor(Color.red); g.drawRect(x, y - 15, WIDTH, 10); int w = WIDTH * life/100; g.fillRect(x, y - 15, w, 10); g.setColor(c); } } public boolean eat(Blood b) { if(this.live && b.isLive() && this.getRect().intersects(b.getRect())) { this.life = 100; b.setLive(false); return true; } return false; } public void setGood(boolean good) { this.good = good; } }