我正在用java制作一个小气球游戏并尝试编写我的代码,这样当我创建新的“气球”对象时它们不会在屏幕上重叠。
我到目前为止的代码是:
public void newGame(){
UI.clearGraphics();
this.currentScore = 0;
this.totalPopped = 0;
for (int i = 0; i < this.balloons.length-1; i++) {
this.balloons[i] = new Balloon(50 + Math.random()*400, 50 + Math.random()*400);
for (int j = i + 1; j < this.balloons.length; j++) {
if (this.balloons[i] !=null && this.balloons[j] != null && this.balloons[i].isTouching(balloons[j])) {
this.balloons[j] = new Balloon(50 + Math.random()*400, 50+ Math.random()*400);
}
}
this.balloons[i].draw();
}
UI.printMessage("New game: click on a balloon. High score = "+this.highScore);
}
使用 draw 和 isTouching 方法:
public void draw(){
UI.setColor(color);
UI.fillOval(centerX-radius, centerY-radius, radius*2, radius*2);
if (!this.popped){
UI.setColor(Color.black);
UI.drawOval(centerX-radius, centerY-radius, radius*2, radius*2);
}
}
/** Returns true if this Balloon is touching the other balloon, and false otherwise
* Returns false if either balloon is popped. */
public boolean isTouching(Balloon other){
if (this.popped || other.popped) return false;
double dx = other.centerX - this.centerX;
double dy = other.centerY - this.centerY;
double dist = other.radius + this.radius;
return (Math.hypot(dx,dy) < dist);
}
我该如何写这个,以便在创建气球时,它们都不会相互接触?