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

/**** 
* Classes
****/ 
var Character = Container.expand(function () {
	var self = Container.call(this);
	var characterGraphics = self.attachAsset('character', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.name = '';
	self.isSelected = false;
	self.select = function () {
		self.isSelected = true;
		tween(characterGraphics, {
			scaleX: 1.3,
			scaleY: 1.3
		}, {
			duration: 300,
			easing: tween.easeOut
		});
	};
	self.deselect = function () {
		self.isSelected = false;
		tween(characterGraphics, {
			scaleX: 1.0,
			scaleY: 1.0
		}, {
			duration: 300,
			easing: tween.easeOut
		});
	};
	self.down = function (x, y, obj) {
		if (gameState === 'characterSelect') {
			if (selectedCharacter && selectedCharacter !== self) {
				selectedCharacter.deselect();
			}
			selectedCharacter = self;
			self.select();
			// Start game after character selection
			LK.setTimeout(function () {
				startGame();
			}, 500);
		}
	};
	return self;
});
var Sled = Container.expand(function () {
	var self = Container.call(this);
	var sledGraphics = self.attachAsset('sled', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.isMoving = false;
	self.onHill = true;
	self.update = function () {
		if (self.isMoving && !self.onHill) {
			// Apply gravity
			self.velocityY += 0.3;
			// Update position
			self.x += self.velocityX;
			self.y += self.velocityY;
			// Check for landing in snow pile
			if (self.intersects(snowPile)) {
				self.land();
			}
			// Check if sled went off screen
			if (self.y > 2732 + 100) {
				self.miss();
			}
		}
	};
	self.launch = function (power) {
		self.isMoving = true;
		self.onHill = false;
		self.velocityX = power * 0.15;
		self.velocityY = -power * 0.1;
		LK.getSound('whoosh').play();
	};
	self.land = function () {
		if (self.isMoving) {
			self.isMoving = false;
			LK.getSound('landing').play();
			LK.setScore(LK.getScore() + 100);
			scoreTxt.setText(LK.getScore());
			// Flash success
			LK.effects.flashObject(snowPile, 0x00FF00, 1000);
			// Reset after delay
			LK.setTimeout(function () {
				resetGame();
			}, 2000);
		}
	};
	self.miss = function () {
		self.isMoving = false;
		// Flash failure
		LK.effects.flashScreen(0xFF0000, 500);
		// Reset after delay
		LK.setTimeout(function () {
			resetGame();
		}, 1500);
	};
	return self;
});

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

/**** 
* Game Code
****/ 
var gameState = 'characterSelect'; // 'characterSelect', 'pullUp', 'sliding'
var selectedCharacter = null;
var currentCharacter = null;
var sled = null;
var pullPower = 0;
var isPulling = false;
var hill = null;
var snowPile = null;
var trees = [];
// Create score display
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0x000000
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create instruction text
var instructionTxt = new Text2('Choose your character!', {
	size: 60,
	fill: 0x000000
});
instructionTxt.anchor.set(0.5, 0.5);
instructionTxt.x = 2048 / 2;
instructionTxt.y = 300;
game.addChild(instructionTxt);
// Create power meter background
var powerMeterBg = LK.getAsset('hill', {
	width: 300,
	height: 30,
	color: 0x666666,
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2500
});
// Create power meter fill
var powerMeterFill = LK.getAsset('hill', {
	width: 0,
	height: 26,
	color: 0xFF0000,
	anchorX: 0,
	anchorY: 0.5,
	x: 2048 / 2 - 150,
	y: 2500
});
// Create hill
hill = game.addChild(LK.getAsset('hill', {
	anchorX: 0,
	anchorY: 1,
	x: 0,
	y: 2732
}));
// Create snow pile at bottom
snowPile = game.addChild(new Container());
var snowPileGraphics = snowPile.attachAsset('snowPile', {
	anchorX: 0.5,
	anchorY: 0.5
});
snowPile.x = 1700;
snowPile.y = 2600;
// Create decorative trees
for (var i = 0; i < 5; i++) {
	var tree = game.addChild(LK.getAsset('tree', {
		anchorX: 0.5,
		anchorY: 1
	}));
	tree.x = Math.random() * 1800 + 100;
	tree.y = 2732 - Math.random() * 300;
	trees.push(tree);
}
// Create character selection
var blossomBubbles = game.addChild(new Character());
blossomBubbles.name = 'Blossom Bubbles';
blossomBubbles.x = 2048 / 2 - 200;
blossomBubbles.y = 2732 / 2;
var buttercup = game.addChild(new Character());
buttercup.name = 'Buttercup';
buttercup.x = 2048 / 2 + 200;
buttercup.y = 2732 / 2;
// Change buttercup color
var buttercupGraphics = buttercup.children[0];
buttercupGraphics.tint = 0xFFFF00;
function startGame() {
	gameState = 'pullUp';
	// Hide character selection
	blossomBubbles.visible = false;
	buttercup.visible = false;
	// Create current character on hill
	currentCharacter = game.addChild(new Container());
	var characterGraphics = currentCharacter.attachAsset('character', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	if (selectedCharacter === buttercup) {
		characterGraphics.tint = 0xFFFF00;
	}
	// Create sled
	sled = game.addChild(new Sled());
	// Position character and sled at bottom of hill
	currentCharacter.x = 200;
	currentCharacter.y = 2500;
	sled.x = 230;
	sled.y = 2510;
	// Show power meter
	game.addChild(powerMeterBg);
	game.addChild(powerMeterFill);
	// Update instructions
	instructionTxt.setText('Hold to pull sled up the hill!');
}
function resetGame() {
	gameState = 'characterSelect';
	// Clean up game objects
	if (currentCharacter) {
		currentCharacter.destroy();
		currentCharacter = null;
	}
	if (sled) {
		sled.destroy();
		sled = null;
	}
	// Hide power meter
	powerMeterBg.visible = false;
	powerMeterFill.visible = false;
	// Reset power
	pullPower = 0;
	isPulling = false;
	// Show character selection again
	blossomBubbles.visible = true;
	buttercup.visible = true;
	if (selectedCharacter) {
		selectedCharacter.deselect();
	}
	selectedCharacter = null;
	// Update instructions
	instructionTxt.setText('Choose your character!');
}
// Game input handling
game.down = function (x, y, obj) {
	if (gameState === 'pullUp' && !isPulling) {
		isPulling = true;
		pullPower = 0;
	}
};
game.up = function (x, y, obj) {
	if (gameState === 'pullUp' && isPulling) {
		isPulling = false;
		if (pullPower > 10) {
			// Launch the sled
			gameState = 'sliding';
			sled.launch(pullPower);
			instructionTxt.setText('Watch the landing!');
			// Hide power meter
			powerMeterBg.visible = false;
			powerMeterFill.visible = false;
		} else {
			// Not enough power, reset
			pullPower = 0;
			powerMeterFill.width = 0;
		}
	}
};
game.update = function () {
	if (gameState === 'pullUp' && isPulling) {
		// Build up power
		pullPower += 1;
		if (pullPower > 100) pullPower = 100;
		// Update power meter
		powerMeterFill.width = pullPower / 100 * 296;
		// Update power meter color
		if (pullPower < 30) {
			powerMeterFill.tint = 0xFF0000; // Red
		} else if (pullPower < 70) {
			powerMeterFill.tint = 0xFFFF00; // Yellow
		} else {
			powerMeterFill.tint = 0x00FF00; // Green
		}
		// Move character and sled up hill based on power
		if (currentCharacter && sled) {
			var hillProgress = pullPower / 100;
			currentCharacter.x = 200 + hillProgress * 1400;
			currentCharacter.y = 2500 - hillProgress * 1200;
			sled.x = currentCharacter.x + 30;
			sled.y = currentCharacter.y + 10;
		}
	}
};