Tank.java
上传用户:kikomiki
上传日期:2021-10-31
资源大小:373k
文件大小:2k
- import java.awt.*;
- import java.awt.event.*;
- public class Tank {
- public static final int XSPEED = 5;
- public static final int YSPEED = 5;
-
- private int x, y;
-
- 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;
- public Tank(int x, int y) {
- this.x = x;
- this.y = y;
- }
-
- public void draw(Graphics g) {
- Color c = g.getColor();
- g.setColor(Color.RED);
- g.fillOval(x, y, 30, 30);
- g.setColor(c);
-
- move();
- }
-
- void move() {
- 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;
- }
- }
-
- 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_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();
- }
- }