Upit | Learn about creating the game Flappy Bird

===================================================================
--- original.js
+++ change.js
@@ -17,19 +17,13 @@
 	self.jumpStrength = -12;
 	self.flap = function () {
 		self.velocity = self.jumpStrength;
 		LK.getSound('flap').play();
-		// Add flap animation
-		tween(birdGraphics, {
-			rotation: -0.5
-		}, {
-			duration: 150
-		});
-		tween(birdGraphics, {
-			rotation: 0
-		}, {
-			duration: 300
-		});
+		// Simple rotation change without multiple tweens to prevent performance issues
+		birdGraphics.rotation = -0.3;
+		LK.setTimeout(function () {
+			birdGraphics.rotation = 0;
+		}, 200);
 	};
 	self.update = function () {
 		self.velocity += self.gravity;
 		self.y += self.velocity;
@@ -76,8 +70,10 @@
 var gapSize = 300;
 var pipeSpacing = 400;
 var nextPipeX = 2048;
 var gameStarted = false;
+var gameOver = false;
+var lastBirdY = 0;
 // Create score display
 var scoreTxt = new Text2('0', {
 	size: 80,
 	fill: 0xFFFFFF
@@ -120,8 +116,10 @@
 	pipes = [];
 	// Reset variables
 	nextPipeX = 2048;
 	gameStarted = false;
+	gameOver = false;
+	lastBirdY = bird.y;
 	LK.setScore(0);
 	scoreTxt.setText('0');
 	// Create initial pipes
 	createPipePair();
@@ -130,19 +128,25 @@
 // Initialize first pipes
 createPipePair();
 createPipePair();
 game.down = function (x, y, obj) {
+	if (gameOver) return; // Ignore clicks when game is over
 	if (!gameStarted) {
 		gameStarted = true;
 	}
 	bird.flap();
 };
 game.update = function () {
-	if (!gameStarted) return;
-	// Check if bird hits ground or goes too high
-	if (bird.y + 30 >= ground.y || bird.y < 0) {
+	if (!gameStarted || gameOver) return;
+	// Store last position for collision detection
+	lastBirdY = bird.y;
+	// Check if bird hits ground or goes too high (immediate detection)
+	if (lastBirdY < ground.y && bird.y + 30 >= ground.y || bird.y < 0) {
+		gameOver = true;
 		LK.showGameOver();
-		resetGame();
+		LK.setTimeout(function () {
+			resetGame();
+		}, 100);
 		return;
 	}
 	// Check pipe collisions and scoring
 	for (var i = pipes.length - 1; i >= 0; i--) {
@@ -152,12 +156,15 @@
 			pipe.destroy();
 			pipes.splice(i, 1);
 			continue;
 		}
-		// Check collision
+		// Check collision (immediate detection)
 		if (bird.intersects(pipe)) {
+			gameOver = true;
 			LK.showGameOver();
-			resetGame();
+			LK.setTimeout(function () {
+				resetGame();
+			}, 100);
 			return;
 		}
 		// Check scoring (only for top pipes to avoid double scoring)
 		if (!pipe.passed && pipe.x < bird.x && i % 2 === 0) {
Creation History

Images
