/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");

/**** 
* Classes
****/ 
var Ball = Container.expand(function () {
	var self = Container.call(this);
	var ballGraphics = self.attachAsset('ball', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.gravity = 0.3;
	self.moving = false;
	self.update = function () {
		if (self.moving) {
			self.x += self.velocityX;
			self.y += self.velocityY;
			self.velocityY += self.gravity;
			// Ground collision
			if (self.y >= ballStartY) {
				self.y = ballStartY;
				self.velocityY *= -0.4;
				self.velocityX *= 0.8;
				// Add ground impact animation
				tween(ballGraphics, {
					scaleY: 0.8
				}, {
					duration: 50,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						tween(ballGraphics, {
							scaleY: 1.0
						}, {
							duration: 100,
							easing: tween.bounceOut
						});
					}
				});
				if (Math.abs(self.velocityX) < 1 && Math.abs(self.velocityY) < 1) {
					self.moving = false;
					self.velocityX = 0;
					self.velocityY = 0;
					tween.stop(ballGraphics, {
						rotation: true
					});
				}
			}
		}
	};
	self.shoot = function (targetX, targetY, power) {
		var distance = Math.sqrt((targetX - self.x) * (targetX - self.x) + (targetY - self.y) * (targetY - self.y));
		self.velocityX = (targetX - self.x) / distance * power;
		self.velocityY = (targetY - self.y) / distance * power;
		self.moving = true;
		// Add realistic ball spin during flight
		var spinSpeed = power * 0.3;
		tween(ballGraphics, {
			rotation: ballGraphics.rotation + spinSpeed
		}, {
			duration: 2000,
			easing: tween.linear
		});
		// Add ball scale effect for power visualization
		tween(ballGraphics, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 100,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(ballGraphics, {
					scaleX: 1.0,
					scaleY: 1.0
				}, {
					duration: 200,
					easing: tween.easeInOut
				});
			}
		});
		LK.getSound('kick').play();
	};
	return self;
});
var Goalkeeper = Container.expand(function () {
	var self = Container.call(this);
	var keeperGraphics = self.attachAsset('goalkeeper', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = 2 + LK.getScore() * 0.3;
	self.direction = 1;
	self.reactionTime = 0;
	self.isDiving = false;
	self.maxReactionTime = 30 - LK.getScore() * 2;
	if (self.maxReactionTime < 10) {
		self.maxReactionTime = 10;
	}
	// Add realistic goalkeeper breathing animation
	tween(keeperGraphics, {
		scaleY: 1.1
	}, {
		duration: 1000,
		easing: tween.easeInOut,
		onFinish: function onFinish() {
			tween(keeperGraphics, {
				scaleY: 1.0
			}, {
				duration: 1000,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					// Repeat breathing animation
					LK.setTimeout(function () {
						if (!self.isDiving) {
							tween(keeperGraphics, {
								scaleY: 1.1
							}, {
								duration: 1000,
								easing: tween.easeInOut
							});
						}
					}, 500);
				}
			});
		}
	});
	self.update = function () {
		// Random movement when not diving
		if (!self.isDiving && Math.random() < 0.02) {
			self.direction *= -1;
		}
		if (!self.isDiving) {
			self.x += self.direction * self.speed;
		}
		// Keep within goal bounds
		if (self.x <= goalX + 50) {
			self.x = goalX + 50;
			self.direction = 1;
		}
		if (self.x >= goalX + goalWidth - 50) {
			self.x = goalX + goalWidth - 50;
			self.direction = -1;
		}
		// React to ball when it's moving toward goal
		if (ball.moving && ball.y < goalY + 100) {
			self.reactionTime++;
			if (self.reactionTime > self.maxReactionTime && !self.isDiving) {
				self.isDiving = true;
				var targetX = ball.x;
				// Dive animation with tween
				tween(self, {
					x: targetX,
					rotation: self.x < targetX ? 0.5 : -0.5
				}, {
					duration: 600,
					easing: tween.easeOut,
					onFinish: function onFinish() {
						// Reset after dive
						LK.setTimeout(function () {
							self.isDiving = false;
							tween(self, {
								rotation: 0
							}, {
								duration: 300,
								easing: tween.easeInOut
							});
						}, 1000);
					}
				});
			}
		} else {
			self.reactionTime = 0;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87CEEB
});

/**** 
* Game Code
****/ 
// Game dimensions and positions
var fieldY = 2732 - 600;
var goalWidth = 900;
var goalHeight = 400;
var goalX = (2048 - goalWidth) / 2;
var goalY = fieldY - goalHeight;
var ballStartX = 2048 / 2;
var ballStartY = fieldY - 40;
// Game state
var isAiming = false;
var aimStartX = 0;
var aimStartY = 0;
var gameState = 'ready'; // 'ready', 'aiming', 'shooting', 'reset' 
// Create field
var field = game.addChild(LK.getAsset('field', {
	anchorX: 0.5,
	anchorY: 0,
	x: 2048 / 2,
	y: fieldY
}));
// Create goal
var goal = game.addChild(LK.getAsset('goal', {
	anchorX: 0,
	anchorY: 0,
	x: goalX,
	y: goalY
}));
// Create goal posts (visual)
var leftPost = game.addChild(LK.getAsset('aimLine', {
	anchorX: 0.5,
	anchorY: 0,
	x: goalX,
	y: goalY,
	width: 12,
	height: goalHeight,
	color: 0xffffff
}));
var rightPost = game.addChild(LK.getAsset('aimLine', {
	anchorX: 0.5,
	anchorY: 0,
	x: goalX + goalWidth,
	y: goalY,
	width: 12,
	height: goalHeight,
	color: 0xffffff
}));
var crossbar = game.addChild(LK.getAsset('aimLine', {
	anchorX: 0,
	anchorY: 0.5,
	x: goalX,
	y: goalY,
	width: goalWidth,
	height: 12,
	color: 0xffffff
}));
// Create ball
var ball = game.addChild(new Ball());
ball.x = ballStartX;
ball.y = ballStartY;
// Create goalkeeper
var goalkeeper = game.addChild(new Goalkeeper());
goalkeeper.x = goalX + goalWidth / 2;
goalkeeper.y = goalY + goalHeight;
// Create aim line (initially hidden)
var aimLine = game.addChild(LK.getAsset('aimLine', {
	anchorX: 0,
	anchorY: 0.5,
	alpha: 0
}));
// Create score display
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create instruction text
var instructionTxt = new Text2('Drag to aim, release to shoot!', {
	size: 60,
	fill: 0xFFFFFF
});
instructionTxt.anchor.set(0.5, 1);
instructionTxt.y = -50;
LK.gui.bottom.addChild(instructionTxt);
// Game event handlers
game.down = function (x, y, obj) {
	if (gameState === 'ready') {
		gameState = 'aiming';
		isAiming = true;
		aimStartX = x;
		aimStartY = y;
		aimLine.alpha = 1;
	}
};
game.move = function (x, y, obj) {
	if (isAiming && gameState === 'aiming') {
		var dx = x - ball.x;
		var dy = y - ball.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		if (distance > 0) {
			aimLine.x = ball.x;
			aimLine.y = ball.y;
			var targetWidth = Math.min(distance, 300);
			// Smooth aim line width transition
			tween(aimLine, {
				width: targetWidth
			}, {
				duration: 50,
				easing: tween.easeOut
			});
			aimLine.rotation = Math.atan2(dy, dx);
			// Power visualization with color change
			var power = Math.min(distance / 300, 1);
			var red = Math.floor(255 * power);
			var green = Math.floor(255 * (1 - power));
			var color = red << 16 | green << 8 | 0;
			tween(aimLine, {
				tint: color
			}, {
				duration: 100,
				easing: tween.linear
			});
		}
	}
};
game.up = function (x, y, obj) {
	if (isAiming && gameState === 'aiming') {
		isAiming = false;
		aimLine.alpha = 0;
		gameState = 'shooting';
		var dx = x - ball.x;
		var dy = y - ball.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		var power = Math.min(distance / 10, 20);
		ball.shoot(x, y, power);
	}
};
// Reset function
function resetGame() {
	ball.x = ballStartX;
	ball.y = ballStartY;
	ball.moving = false;
	ball.velocityX = 0;
	ball.velocityY = 0;
	gameState = 'ready';
	goalkeeper.reactionTime = 0;
	goalkeeper.speed = 2 + LK.getScore() * 0.3;
	goalkeeper.maxReactionTime = 30 - LK.getScore() * 2;
	if (goalkeeper.maxReactionTime < 10) {
		goalkeeper.maxReactionTime = 10;
	}
}
// Game update loop
game.update = function () {
	// Check for goal
	if (ball.moving && ball.x > goalX && ball.x < goalX + goalWidth && ball.y > goalY && ball.y < goalY + goalHeight && ball.lastY !== undefined && ball.lastY >= goalY) {
		// Check if goalkeeper blocked it
		if (!ball.intersects(goalkeeper)) {
			LK.setScore(LK.getScore() + 1);
			scoreTxt.setText('Score: ' + LK.getScore());
			LK.getSound('goal').play();
			LK.effects.flashScreen(0x00ff00, 500);
			// Celebrate goal with ball bounce and goal shake
			tween(ball, {
				scaleX: 1.5,
				scaleY: 1.5
			}, {
				duration: 300,
				easing: tween.bounceOut,
				onFinish: function onFinish() {
					tween(ball, {
						scaleX: 1.0,
						scaleY: 1.0
					}, {
						duration: 200
					});
				}
			});
			// Goal shake effect
			tween(goal, {
				x: goalX + 10
			}, {
				duration: 50,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					tween(goal, {
						x: goalX - 10
					}, {
						duration: 50,
						onFinish: function onFinish() {
							tween(goal, {
								x: goalX
							}, {
								duration: 50
							});
						}
					});
				}
			});
			// Score text celebration
			tween(scoreTxt, {
				scaleX: 1.3,
				scaleY: 1.3
			}, {
				duration: 200,
				easing: tween.easeOut,
				onFinish: function onFinish() {
					tween(scoreTxt, {
						scaleX: 1.0,
						scaleY: 1.0
					}, {
						duration: 300
					});
				}
			});
			LK.setTimeout(function () {
				resetGame();
			}, 1500);
		}
	}
	// Check for goalkeeper block
	if (ball.moving && ball.intersects(goalkeeper)) {
		LK.getSound('block').play();
		LK.effects.flashScreen(0xff0000, 500);
		LK.showGameOver();
	}
	// Check if ball went off screen or stopped moving for too long
	if (ball.moving && (ball.x < -100 || ball.x > 2148 || ball.y > fieldY + 100)) {
		LK.showGameOver();
	}
	// Check if ball stopped moving and didn't score
	if (!ball.moving && gameState === 'shooting') {
		if (!(ball.x > goalX && ball.x < goalX + goalWidth && ball.y > goalY && ball.y < goalY + goalHeight)) {
			LK.setTimeout(function () {
				LK.showGameOver();
			}, 1000);
		}
	}
	// Track ball position for collision detection
	ball.lastY = ball.y;
};

===================================================================
--- original.js
+++ change.js
@@ -25,12 +25,30 @@
 			if (self.y >= ballStartY) {
 				self.y = ballStartY;
 				self.velocityY *= -0.4;
 				self.velocityX *= 0.8;
+				// Add ground impact animation
+				tween(ballGraphics, {
+					scaleY: 0.8
+				}, {
+					duration: 50,
+					easing: tween.easeOut,
+					onFinish: function onFinish() {
+						tween(ballGraphics, {
+							scaleY: 1.0
+						}, {
+							duration: 100,
+							easing: tween.bounceOut
+						});
+					}
+				});
 				if (Math.abs(self.velocityX) < 1 && Math.abs(self.velocityY) < 1) {
 					self.moving = false;
 					self.velocityX = 0;
 					self.velocityY = 0;
+					tween.stop(ballGraphics, {
+						rotation: true
+					});
 				}
 			}
 		}
 	};
@@ -38,8 +56,33 @@
 		var distance = Math.sqrt((targetX - self.x) * (targetX - self.x) + (targetY - self.y) * (targetY - self.y));
 		self.velocityX = (targetX - self.x) / distance * power;
 		self.velocityY = (targetY - self.y) / distance * power;
 		self.moving = true;
+		// Add realistic ball spin during flight
+		var spinSpeed = power * 0.3;
+		tween(ballGraphics, {
+			rotation: ballGraphics.rotation + spinSpeed
+		}, {
+			duration: 2000,
+			easing: tween.linear
+		});
+		// Add ball scale effect for power visualization
+		tween(ballGraphics, {
+			scaleX: 1.2,
+			scaleY: 1.2
+		}, {
+			duration: 100,
+			easing: tween.easeOut,
+			onFinish: function onFinish() {
+				tween(ballGraphics, {
+					scaleX: 1.0,
+					scaleY: 1.0
+				}, {
+					duration: 200,
+					easing: tween.easeInOut
+				});
+			}
+		});
 		LK.getSound('kick').play();
 	};
 	return self;
 });
@@ -51,18 +94,49 @@
 	});
 	self.speed = 2 + LK.getScore() * 0.3;
 	self.direction = 1;
 	self.reactionTime = 0;
+	self.isDiving = false;
 	self.maxReactionTime = 30 - LK.getScore() * 2;
 	if (self.maxReactionTime < 10) {
 		self.maxReactionTime = 10;
 	}
+	// Add realistic goalkeeper breathing animation
+	tween(keeperGraphics, {
+		scaleY: 1.1
+	}, {
+		duration: 1000,
+		easing: tween.easeInOut,
+		onFinish: function onFinish() {
+			tween(keeperGraphics, {
+				scaleY: 1.0
+			}, {
+				duration: 1000,
+				easing: tween.easeInOut,
+				onFinish: function onFinish() {
+					// Repeat breathing animation
+					LK.setTimeout(function () {
+						if (!self.isDiving) {
+							tween(keeperGraphics, {
+								scaleY: 1.1
+							}, {
+								duration: 1000,
+								easing: tween.easeInOut
+							});
+						}
+					}, 500);
+				}
+			});
+		}
+	});
 	self.update = function () {
-		// Random movement
-		if (Math.random() < 0.02) {
+		// Random movement when not diving
+		if (!self.isDiving && Math.random() < 0.02) {
 			self.direction *= -1;
 		}
-		self.x += self.direction * self.speed;
+		if (!self.isDiving) {
+			self.x += self.direction * self.speed;
+		}
 		// Keep within goal bounds
 		if (self.x <= goalX + 50) {
 			self.x = goalX + 50;
 			self.direction = 1;
@@ -73,14 +147,31 @@
 		}
 		// React to ball when it's moving toward goal
 		if (ball.moving && ball.y < goalY + 100) {
 			self.reactionTime++;
-			if (self.reactionTime > self.maxReactionTime) {
-				if (ball.x < self.x) {
-					self.direction = -1;
-				} else {
-					self.direction = 1;
-				}
+			if (self.reactionTime > self.maxReactionTime && !self.isDiving) {
+				self.isDiving = true;
+				var targetX = ball.x;
+				// Dive animation with tween
+				tween(self, {
+					x: targetX,
+					rotation: self.x < targetX ? 0.5 : -0.5
+				}, {
+					duration: 600,
+					easing: tween.easeOut,
+					onFinish: function onFinish() {
+						// Reset after dive
+						LK.setTimeout(function () {
+							self.isDiving = false;
+							tween(self, {
+								rotation: 0
+							}, {
+								duration: 300,
+								easing: tween.easeInOut
+							});
+						}, 1000);
+					}
+				});
 			}
 		} else {
 			self.reactionTime = 0;
 		}
@@ -199,10 +290,28 @@
 		var distance = Math.sqrt(dx * dx + dy * dy);
 		if (distance > 0) {
 			aimLine.x = ball.x;
 			aimLine.y = ball.y;
-			aimLine.width = Math.min(distance, 300);
+			var targetWidth = Math.min(distance, 300);
+			// Smooth aim line width transition
+			tween(aimLine, {
+				width: targetWidth
+			}, {
+				duration: 50,
+				easing: tween.easeOut
+			});
 			aimLine.rotation = Math.atan2(dy, dx);
+			// Power visualization with color change
+			var power = Math.min(distance / 300, 1);
+			var red = Math.floor(255 * power);
+			var green = Math.floor(255 * (1 - power));
+			var color = red << 16 | green << 8 | 0;
+			tween(aimLine, {
+				tint: color
+			}, {
+				duration: 100,
+				easing: tween.linear
+			});
 		}
 	}
 };
 game.up = function (x, y, obj) {
@@ -241,11 +350,64 @@
 			LK.setScore(LK.getScore() + 1);
 			scoreTxt.setText('Score: ' + LK.getScore());
 			LK.getSound('goal').play();
 			LK.effects.flashScreen(0x00ff00, 500);
+			// Celebrate goal with ball bounce and goal shake
+			tween(ball, {
+				scaleX: 1.5,
+				scaleY: 1.5
+			}, {
+				duration: 300,
+				easing: tween.bounceOut,
+				onFinish: function onFinish() {
+					tween(ball, {
+						scaleX: 1.0,
+						scaleY: 1.0
+					}, {
+						duration: 200
+					});
+				}
+			});
+			// Goal shake effect
+			tween(goal, {
+				x: goalX + 10
+			}, {
+				duration: 50,
+				easing: tween.easeInOut,
+				onFinish: function onFinish() {
+					tween(goal, {
+						x: goalX - 10
+					}, {
+						duration: 50,
+						onFinish: function onFinish() {
+							tween(goal, {
+								x: goalX
+							}, {
+								duration: 50
+							});
+						}
+					});
+				}
+			});
+			// Score text celebration
+			tween(scoreTxt, {
+				scaleX: 1.3,
+				scaleY: 1.3
+			}, {
+				duration: 200,
+				easing: tween.easeOut,
+				onFinish: function onFinish() {
+					tween(scoreTxt, {
+						scaleX: 1.0,
+						scaleY: 1.0
+					}, {
+						duration: 300
+					});
+				}
+			});
 			LK.setTimeout(function () {
 				resetGame();
-			}, 1000);
+			}, 1500);
 		}
 	}
 	// Check for goalkeeper block
 	if (ball.moving && ball.intersects(goalkeeper)) {