Tank.java
上传用户:kikomiki
上传日期:2021-10-31
资源大小:373k
文件大小:5k
- 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;
-
- private boolean live = true;
-
- TankClient tc;
-
- private boolean good;
-
- private int x, y;
- private int oldX, oldY;
-
- 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;
-
- private int step = r.nextInt(12) + 3;
- public Tank(int x, int y, boolean good) {
- this.x = x;
- this.y = y;
- this.oldX = x;
- this.oldY = y;
- this.good = good;
- }
-
- public Tank(int x, int y, boolean good, Direction dir, TankClient tc) {
- this(x, y, good);
- this.dir = dir;
- this.tc = tc;
- }
-
- public void draw(Graphics g) {
- if(!live) {
- if(!good) {
- tc.tanks.remove(this);
- }
- return;
- }
-
- Color c = g.getColor();
- if(good) g.setColor(Color.RED);
- else g.setColor(Color.BLUE);
- g.fillOval(x, y, WIDTH, HEIGHT);
- g.setColor(c);
-
- 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(this.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(!good) {
- Direction[] dirs = Direction.values();
- if(step == 0) {
- step = r.nextInt(12) + 3;
- int rn = r.nextInt(dirs.length);
- dir = dirs[rn];
- }
- step --;
-
- if(r.nextInt(40) > 38) this.fire();
- }
-
-
- }
-
- private void stay() {
- x = oldX;
- y = oldY;
- }
-
- 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_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 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 boolean collidesWithWall(Wall w) {
- if(this.live && this.getRect().intersects(w.getRect())) {
- this.stay();
- return true;
- }
- return false;
- }
-
- public boolean collidesWithTanks(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();
- t.stay();
- return true;
- }
- }
- }
- return false;
- }
- }