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

/**** 
* Classes
****/ 
var Player = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('player', {
		anchorX: 0.5,
		anchorY: 1
	});
	self.isReady = true;
	self.celebrate = function () {
		// Animate player celebration when hitting targets
		tween(self, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 200
		});
		tween(self, {
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 200
		});
	};
	self.aim = function () {
		// Slight lean forward when aiming
		tween(self, {
			rotation: 0.1
		}, {
			duration: 100
		});
	};
	self.resetPose = function () {
		// Return to normal stance
		tween(self, {
			rotation: 0
		}, {
			duration: 200
		});
	};
	return self;
});
var Projectile = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('projectile', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.gravity = 0.5;
	self.launched = false;
	self.destroyed = false;
	self.launch = function (vx, vy) {
		self.velocityX = vx;
		self.velocityY = vy;
		self.launched = true;
		LK.getSound('launch').play();
	};
	self.update = function () {
		if (self.launched && !self.destroyed) {
			self.x += self.velocityX;
			self.y += self.velocityY;
			self.velocityY += self.gravity;
			// Check ground collision
			if (self.y >= groundY - 30) {
				self.y = groundY - 30;
				self.velocityY = -self.velocityY * 0.3;
				self.velocityX *= 0.8;
				if (Math.abs(self.velocityY) < 2) {
					self.launched = false;
				}
			}
			// Check screen bounds
			if (self.x > 2200 || self.x < -100 || self.y > 2800) {
				self.destroyed = true;
			}
		}
	};
	return self;
});
var TargetBlock = Container.expand(function () {
	var self = Container.call(this);
	var graphics = self.attachAsset('targetBlock', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.health = 1;
	self.destroyed = false;
	self.takeDamage = function () {
		self.health--;
		if (self.health <= 0) {
			self.destroyed = true;
			LK.getSound('destroy').play();
			LK.setScore(LK.getScore() + 100);
			LK.effects.flashObject(self, 0xFFFFFF, 200);
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game variables
var slingshot;
var slingshotBase;
var player;
var currentProjectile = null;
var isAiming = false;
var aimStartX = 0;
var aimStartY = 0;
var trajectoryDots = [];
var targetBlocks = [];
var projectiles = [];
var shotsRemaining = 5;
var level = 1;
var groundY = 2600;
// UI elements
var shotsText = new Text2('Shots: 5', {
	size: 80,
	fill: 0x000000
});
shotsText.anchor.set(0, 0);
LK.gui.topRight.addChild(shotsText);
shotsText.x = -300;
shotsText.y = 100;
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0x000000
});
scoreText.anchor.set(0, 0);
LK.gui.top.addChild(scoreText);
scoreText.y = 100;
// Create ground
var ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0.5,
	anchorY: 0.5
}));
ground.x = 1024;
ground.y = groundY;
// Create slingshot
slingshotBase = game.addChild(LK.getAsset('slingshotBase', {
	anchorX: 0.5,
	anchorY: 1
}));
slingshotBase.x = 200;
slingshotBase.y = groundY;
slingshot = game.addChild(LK.getAsset('slingshot', {
	anchorX: 0.5,
	anchorY: 1
}));
slingshot.x = 200;
slingshot.y = groundY;
// Create player character
player = game.addChild(new Player());
player.x = 120; // Position behind slingshot
player.y = groundY;
// Create trajectory dots
for (var i = 0; i < 15; i++) {
	var dot = game.addChild(LK.getAsset('trajectoryDot', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	dot.visible = false;
	trajectoryDots.push(dot);
}
// Create target structures
function createLevel() {
	// Clear existing targets
	for (var i = targetBlocks.length - 1; i >= 0; i--) {
		if (targetBlocks[i].destroyed) {
			targetBlocks[i].destroy();
			targetBlocks.splice(i, 1);
		}
	}
	targetBlocks = [];
	// Create target blocks in tower formation
	var startX = 1400;
	var startY = groundY - 50;
	// Bottom row
	for (var i = 0; i < 4; i++) {
		var block = game.addChild(new TargetBlock());
		block.x = startX + i * 110;
		block.y = startY;
		targetBlocks.push(block);
	}
	// Middle row
	for (var i = 0; i < 3; i++) {
		var block = game.addChild(new TargetBlock());
		block.x = startX + 55 + i * 110;
		block.y = startY - 110;
		targetBlocks.push(block);
	}
	// Top row
	for (var i = 0; i < 2; i++) {
		var block = game.addChild(new TargetBlock());
		block.x = startX + 110 + i * 110;
		block.y = startY - 220;
		targetBlocks.push(block);
	}
	// Top block
	var block = game.addChild(new TargetBlock());
	block.x = startX + 165;
	block.y = startY - 330;
	targetBlocks.push(block);
}
// Initialize first level
createLevel();
// Helper functions
function calculateTrajectory(startX, startY, velocityX, velocityY) {
	var points = [];
	var x = startX;
	var y = startY;
	var vx = velocityX;
	var vy = velocityY;
	for (var i = 0; i < 15; i++) {
		points.push({
			x: x,
			y: y
		});
		x += vx * 2;
		y += vy * 2;
		vy += 0.5 * 2;
		if (y >= groundY - 30) break;
	}
	return points;
}
function updateTrajectoryDisplay(points) {
	for (var i = 0; i < trajectoryDots.length; i++) {
		if (i < points.length) {
			trajectoryDots[i].x = points[i].x;
			trajectoryDots[i].y = points[i].y;
			trajectoryDots[i].visible = true;
		} else {
			trajectoryDots[i].visible = false;
		}
	}
}
function hideTrajectoryDisplay() {
	for (var i = 0; i < trajectoryDots.length; i++) {
		trajectoryDots[i].visible = false;
	}
}
function checkProjectileCollisions(projectile) {
	for (var i = 0; i < targetBlocks.length; i++) {
		var block = targetBlocks[i];
		if (!block.destroyed && projectile.intersects(block)) {
			block.takeDamage();
			LK.getSound('impact').play();
			projectile.velocityX *= -0.3;
			projectile.velocityY *= -0.3;
			if (block.destroyed) {
				player.celebrate(); // Player celebrates when destroying a block
			}
			return true;
		}
	}
	return false;
}
function checkLevelComplete() {
	var remainingBlocks = 0;
	for (var i = 0; i < targetBlocks.length; i++) {
		if (!targetBlocks[i].destroyed) {
			remainingBlocks++;
		}
	}
	if (remainingBlocks === 0) {
		// Level complete
		level++;
		shotsRemaining = 5;
		LK.setTimeout(function () {
			createLevel();
		}, 1000);
		return true;
	}
	if (shotsRemaining <= 0 && projectiles.length === 0) {
		// Game over
		LK.showGameOver();
		return true;
	}
	return false;
}
// Event handlers
game.down = function (x, y, obj) {
	if (!currentProjectile && shotsRemaining > 0) {
		var distance = Math.sqrt((x - slingshot.x) * (x - slingshot.x) + (y - slingshot.y) * (y - slingshot.y));
		if (distance < 150) {
			isAiming = true;
			aimStartX = x;
			aimStartY = y;
			currentProjectile = game.addChild(new Projectile());
			currentProjectile.x = slingshot.x;
			currentProjectile.y = slingshot.y - 100;
			player.aim(); // Player leans forward when aiming
		}
	}
};
game.move = function (x, y, obj) {
	if (isAiming && currentProjectile) {
		var deltaX = aimStartX - x;
		var deltaY = aimStartY - y;
		// Limit drag distance
		var maxDistance = 150;
		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
		if (distance > maxDistance) {
			deltaX = deltaX / distance * maxDistance;
			deltaY = deltaY / distance * maxDistance;
		}
		currentProjectile.x = slingshot.x - deltaX * 0.5;
		currentProjectile.y = slingshot.y - 100 - deltaY * 0.5;
		// Calculate and show trajectory
		var velocityX = deltaX * 0.3;
		var velocityY = deltaY * 0.3;
		var trajectoryPoints = calculateTrajectory(currentProjectile.x, currentProjectile.y, velocityX, velocityY);
		updateTrajectoryDisplay(trajectoryPoints);
	}
};
game.up = function (x, y, obj) {
	if (isAiming && currentProjectile) {
		var deltaX = aimStartX - x;
		var deltaY = aimStartY - y;
		// Limit drag distance
		var maxDistance = 150;
		var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
		if (distance > maxDistance) {
			deltaX = deltaX / distance * maxDistance;
			deltaY = deltaY / distance * maxDistance;
		}
		if (distance > 20) {
			var velocityX = deltaX * 0.3;
			var velocityY = deltaY * 0.3;
			currentProjectile.launch(velocityX, velocityY);
			projectiles.push(currentProjectile);
			shotsRemaining--;
			shotsText.setText('Shots: ' + shotsRemaining);
			player.celebrate(); // Player celebrates the shot
		} else {
			currentProjectile.destroy();
		}
		currentProjectile = null;
		isAiming = false;
		hideTrajectoryDisplay();
		player.resetPose(); // Player returns to normal stance
	}
};
game.update = function () {
	// Update score display
	scoreText.setText('Score: ' + LK.getScore());
	// Update projectiles
	for (var i = projectiles.length - 1; i >= 0; i--) {
		var projectile = projectiles[i];
		if (projectile.destroyed) {
			projectile.destroy();
			projectiles.splice(i, 1);
			continue;
		}
		if (projectile.launched) {
			checkProjectileCollisions(projectile);
		}
	}
	// Remove destroyed blocks
	for (var i = targetBlocks.length - 1; i >= 0; i--) {
		if (targetBlocks[i].destroyed) {
			targetBlocks[i].destroy();
			targetBlocks.splice(i, 1);
		}
	}
	// Check level completion
	checkLevelComplete();
};

===================================================================
--- original.js
+++ change.js
@@ -14,27 +14,35 @@
 	});
 	self.isReady = true;
 	self.celebrate = function () {
 		// Animate player celebration when hitting targets
-		tween.to(self, 0.2, {
+		tween(self, {
 			scaleX: 1.2,
 			scaleY: 1.2
+		}, {
+			duration: 200
 		});
-		tween.to(self, 0.2, {
+		tween(self, {
 			scaleX: 1,
 			scaleY: 1
-		}, 0.2);
+		}, {
+			duration: 200
+		});
 	};
 	self.aim = function () {
 		// Slight lean forward when aiming
-		tween.to(self, 0.1, {
+		tween(self, {
 			rotation: 0.1
+		}, {
+			duration: 100
 		});
 	};
 	self.resetPose = function () {
 		// Return to normal stance
-		tween.to(self, 0.2, {
+		tween(self, {
 			rotation: 0
+		}, {
+			duration: 200
 		});
 	};
 	return self;
 });