Upit | Learn about creating the game Santa's Gift Dash with gen AI

===================================================================
--- original.js
+++ change.js
@@ -14,12 +14,8 @@
 	};
 });
 var Present = Container.expand(function () {
 	var self = Container.call(this);
-	self.markDelivered = function () {
-		this.delivered = true;
-		this.destroy();
-	};
 	var presentGraphics = self.createAsset('present', 'Present', .5, .5);
 	self.move = function () {
 		this.y += 5;
 		if (this.y > 2732) {
@@ -29,25 +25,17 @@
 });
 var Chimney = Container.expand(function () {
 	var self = Container.call(this);
 	var chimneyGraphics = self.createAsset('chimney', 'Chimney', .5, .5);
+	self.needsPresent = Math.random() > 0.5;
 	self.speed = 2;
 	self.move = function () {
 		self.x -= self.speed;
 		if (self.x < -self.width) {
 			self.destroy();
 		}
 	};
-	self.checkCollision = function (presents) {
-		for (var i = 0; i < self.presents.length; i++) {
-			var present = presents[i];
-			if (this.intersects(present)) {
-				present.markDelivered();
-				presents.splice(i, 1);
-				i--;
-			}
-		}
-	};
+	self.checkCollision = function () {};
 });
 var Hazard = Container.expand(function () {
 	var self = Container.call(this);
 	var hazardGraphics = self.createAsset('hazard', 'Hazard', .5, .5);
@@ -66,10 +54,13 @@
 	santa.y = 0;
 	self.presents = [];
 	var chimneys = [];
 	var hazards = [];
+	var scoreTxt = new Text2('0', {
+		size: 150,
+		fill: "#ffffff"
+	});
 	var maxChimneys = 5;
-	self.presents = [];
 	LK.on('tick', function () {
 		if (chimneys.length < maxChimneys) {
 			var lastChimney = chimneys[chimneys.length - 1];
 			if (!lastChimney || lastChimney.x < 2048 - lastChimney.width - 300) {
@@ -81,25 +72,29 @@
 			}
 		}
 		chimneys.forEach(function (chimney) {
 			chimney.move();
+			self.presents.forEach(function (present) {
+				if (chimney.needsPresent && present.intersects(chimney)) {
+					chimney.needsPresent = false;
+					present.destroy();
+					LK.setScore(LK.getScore() + 1);
+					scoreTxt.setText(LK.getScore().toString());
+				}
+			});
 		});
 		chimneys = chimneys.filter(function (chimney) {
 			return chimney.x + chimney.width > 0;
 		});
 	});
-	var scoreTxt = new Text2('0', {
-		size: 150,
-		fill: "#ffffff"
-	});
 	scoreTxt.anchor.set(.5, 0);
 	LK.gui.topCenter.addChild(scoreTxt);
 	LK.on('tick', function () {
 		for (var i = 0; i < self.presents.length; i++) {
 			self.presents[i].move();
 		}
 		for (var i = 0; i < chimneys.length; i++) {
-			chimneys[i].checkCollision(self.presents);
+			chimneys[i].checkCollision();
 		}
 		for (var i = 0; i < hazards.length; i++) {
 			hazards[i].move();
 		}
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