/**** 
* Classes
****/ 
// Assets will be automatically created and loaded during gameplay
// Ball class
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = 0;
	self.speedY = 0;
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		// Check for collision with screen boundaries
		if (self.x < 0 || self.x > 2048) {
			self.speedX *= -1;
		}
		if (self.y < 0 || self.y > 2732) {
			self.speedY *= -1;
		}
	};
});
// Obstacle class
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
});
// Target1 class
var Target1 = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('target', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.points = 1; // Default points
});
// Target2 class
var Target2 = Container.expand(function () {
	var self = Container.call(this);
	var targetGraphics = self.attachAsset('target2', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.points = 5; // Default points
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000,
	// Init game with black background
	icon: 'new_icon_id',
	// Replace with the new icon id
	description: '点击控制吃豆人，触碰金币和钻石获得分数，小心避开炸弹哦。' // Replace with the new game description
});

/**** 
* Game Code
****/ 
var background = game.addChild(LK.getAsset('background', {
	anchorX: 0.0,
	anchorY: 0.0,
	width: 2048,
	height: 2732
}));
var ball = game.addChild(new Ball());
ball.x = 1024;
ball.y = 1366;
var obstacles = [];
var targets = [];
var score = 0;
var scoreTxt = new Text2('0', {
	size: 150,
	fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
function spawnObstacle() {
	var obstacle = new Obstacle();
	do {
		obstacle.x = Math.random() * 2048;
		obstacle.y = Math.random() * 2732;
	} while (targets.some(function (target) {
		return Math.abs(target.x - obstacle.x) < 100 && Math.abs(target.y - obstacle.y) < 100;
	}));
	obstacle.creationTime = LK.ticks;
	obstacles.push(obstacle);
	game.addChild(obstacle);
}
function spawnTarget() {
	var target;
	if (Math.random() < 0.5) {
		target = new Target1();
	} else {
		target = new Target2();
	}
	do {
		target.x = Math.random() * 2048;
		target.y = Math.random() * 2732;
	} while (obstacles.some(function (obstacle) {
		return Math.abs(obstacle.x - target.x) < 100 && Math.abs(obstacle.y - target.y) < 100;
	}));
	target.creationTime = LK.ticks;
	targets.push(target);
	game.addChild(target);
}
function updateScore(points) {
	score += points;
	scoreTxt.setText(score);
}
game.down = function (x, y, obj) {
	var game_position = game.toLocal(obj.global);
	ball.speedX = (game_position.x - ball.x) / 20;
	ball.speedY = (game_position.y - ball.y) / 20;
};
game.update = function () {
	for (var i = obstacles.length - 1; i >= 0; i--) {
		if (ball.intersects(obstacles[i])) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
		if (LK.ticks - obstacles[i].creationTime > 600) {
			obstacles[i].destroy();
			obstacles.splice(i, 1);
		}
	}
	for (var j = targets.length - 1; j >= 0; j--) {
		if (ball.intersects(targets[j])) {
			updateScore(targets[j].points);
			targets[j].destroy();
			targets.splice(j, 1);
		}
		if (targets[j] && (targets[j] instanceof Target1 && LK.ticks - targets[j].creationTime > 600 || targets[j] instanceof Target2 && LK.ticks - targets[j].creationTime > 300)) {
			targets[j].destroy();
			targets.splice(j, 1);
		}
	}
	if (LK.ticks % 120 == 0) {
		spawnObstacle();
	}
	if (LK.ticks % 180 == 0) {
		spawnTarget();
	}
};

===================================================================
--- original.js
+++ change.js
@@ -83,10 +83,14 @@
 scoreTxt.anchor.set(0.5, 0);
 LK.gui.top.addChild(scoreTxt);
 function spawnObstacle() {
 	var obstacle = new Obstacle();
-	obstacle.x = Math.random() * 2048;
-	obstacle.y = Math.random() * 2732;
+	do {
+		obstacle.x = Math.random() * 2048;
+		obstacle.y = Math.random() * 2732;
+	} while (targets.some(function (target) {
+		return Math.abs(target.x - obstacle.x) < 100 && Math.abs(target.y - obstacle.y) < 100;
+	}));
 	obstacle.creationTime = LK.ticks;
 	obstacles.push(obstacle);
 	game.addChild(obstacle);
 }
@@ -96,10 +100,14 @@
 		target = new Target1();
 	} else {
 		target = new Target2();
 	}
-	target.x = Math.random() * 2048;
-	target.y = Math.random() * 2732;
+	do {
+		target.x = Math.random() * 2048;
+		target.y = Math.random() * 2732;
+	} while (obstacles.some(function (obstacle) {
+		return Math.abs(obstacle.x - target.x) < 100 && Math.abs(obstacle.y - target.y) < 100;
+	}));
 	target.creationTime = LK.ticks;
 	targets.push(target);
 	game.addChild(target);
 }