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ResourceManager.tankU : ResourceManager.badTankU, x, y, null); break; case DOWN: - g.drawImage(ResourceManager.tankD, x, y, null); + g.drawImage(this.group == Group.GOOD ? ResourceManager.tankD : ResourceManager.badTankD, x, y, null); break; case LEFT: - g.drawImage(ResourceManager.tankL, x, y, null); + g.drawImage(this.group == Group.GOOD ? ResourceManager.tankL: ResourceManager.badTankL, x, y, null); break; case RIGHT: - g.drawImage(ResourceManager.tankR, x, y, null); + g.drawImage(this.group == Group.GOOD ? ResourceManager.tankR : ResourceManager.badTankR, x, y, null); break; } move(); @@ -66,6 +66,16 @@ public class Tank { this.randomDirection(); } } + + //边界检测 + boundsCheck(); + } + + private void boundsCheck() { + if(x < 0) x = 0; + if(x > TankFrameV4.GAME_WIDTH - Tank.WIDTH) x = TankFrameV4.GAME_WIDTH - Tank.WIDTH; + if(y < 30) y = 30; //算上菜单条 + if(y > TankFrameV4.GAME_HEIGHT - Tank.HEIGHT) y = TankFrameV4.GAME_HEIGHT - Tank.HEIGHT; } private void randomDirection() {