Kontra.js |碰撞检测

最简单的例子是下面的Kontra.js示例(codepen) https://codepen.io/yellowsmiley/pen/oJzyrZ/ )。它会创建多个精灵,并在每次更新gameloop时检查所有精灵是否存在冲突。

for (let i = 0; i < sprites.length; i++) {
  for (let j = 0; j < sprites.length; j++) {
    let sprite1 = sprites[i];
    let sprite2 = sprites[j];
    if (isCollide(sprite1, sprite2)) {
      sprite1.color = "green";
      sprite2.color = "green";
    } else {
      sprite1.color = "red";
      sprite2.color = "red";
    }
  }
}