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

/**** 
* Classes
****/ 
var Block = Container.expand(function (color, width) {
	var self = Container.call(this);
	// Default values if not provided
	color = color || 0x3498db;
	width = width || 512;
	// Create block graphics
	var blockGraphics = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: width,
		tint: color
	});
	// State tracking
	self.placed = false;
	self.originalWidth = width;
	self.fallDirection = 0; // 0: none, -1: left, 1: right
	self.movementSpeed = 8;
	self.movementDirection = 1; // 1: right, -1: left
	// Resize the block (used when block partially falls off)
	self.resize = function (newWidth, offsetX) {
		if (newWidth <= 0) {
			return;
		}
		blockGraphics.width = newWidth;
		if (offsetX !== undefined) {
			self.x += offsetX;
		}
	};
	// Update method called every frame
	self.update = function () {
		if (!self.placed) {
			// Move block back and forth
			self.x += self.movementSpeed * self.movementDirection;
			// Check if we need to change direction
			if (self.x > 2048 - self.originalWidth / 2) {
				self.movementDirection = -1;
			} else if (self.x < self.originalWidth / 2) {
				self.movementDirection = 1;
			}
		} else if (self.fallDirection !== 0) {
			// If block is set to fall, make it fall and rotate
			self.y += 15;
			self.rotation += 0.1 * self.fallDirection;
			// Remove the block when it's off-screen
			if (self.y > 2732 + 200) {
				self.destroy();
			}
		}
	};
	return self;
});
var Fruit = Container.expand(function (type) {
	var self = Container.call(this);
	// Define fruit types and their properties
	var fruitTypes = {
		apple: {
			width: 80,
			height: 80,
			color: 0xe74c3c,
			shape: 'ellipse'
		},
		banana: {
			width: 120,
			height: 60,
			color: 0xf1c40f,
			shape: 'ellipse'
		},
		orange: {
			width: 75,
			height: 75,
			color: 0xf39c12,
			shape: 'ellipse'
		},
		grape: {
			width: 60,
			height: 60,
			color: 0x9b59b6,
			shape: 'ellipse'
		},
		watermelon: {
			width: 120,
			height: 90,
			color: 0x2ecc71,
			shape: 'ellipse'
		}
	};
	// Set default if type not provided or invalid
	type = fruitTypes[type] ? type : 'apple';
	// Initialize fruit properties
	var props = fruitTypes[type];
	// Create shape for the fruit
	// Attach fruit asset
	var fruitGraphics = self.attachAsset('fruit_' + type, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add movement properties
	self.speedY = 2 + Math.random() * 3;
	self.speedX = (Math.random() * 2 - 1) * 2;
	self.rotationSpeed = Math.random() * 0.04 - 0.02;
	// Track last position for collision detection
	self.lastY = self.y;
	self.lastX = self.x;
	self.value = 0;
	switch (type) {
		case 'apple':
			self.value = 1;
			break;
		case 'banana':
			self.value = 2;
			break;
		case 'orange':
			self.value = 5;
			break;
		case 'grape':
			self.value = 3;
			break;
		case 'watermelon':
			self.value = 10;
			break;
	}
	// Update method called every frame
	self.update = function () {
		// Store last position
		self.lastY = self.y;
		self.lastX = self.x;
		// Move fruit
		self.y -= self.speedY;
		self.x += self.speedX;
		// Rotate fruit
		self.rotation += self.rotationSpeed;
		// Bounce off walls
		if (self.x < self.width / 2 || self.x > 2048 - self.width / 2) {
			self.speedX *= -1;
		}
		// Remove if off screen at top
		if (self.y < -100) {
			self.destroy();
		}
	};
	return self;
});
var ScoreDisplay = Container.expand(function () {
	var self = Container.call(this);
	// Background for score
	var background = self.attachAsset('scoreBackground', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.7
	});
	// Score text
	self.scoreText = new Text2('0', {
		size: 60,
		fill: 0xFFFFFF
	});
	self.scoreText.anchor.set(0.5, 0.5);
	self.addChild(self.scoreText);
	// Height text
	self.heightText = new Text2('Height: 0m', {
		size: 30,
		fill: 0xFFFFFF
	});
	self.heightText.anchor.set(0.5, 0.5);
	self.heightText.y = 50;
	self.addChild(self.heightText);
	// Update score display
	self.updateScore = function (score, height) {
		self.scoreText.setText(score.toString());
		self.heightText.setText('Height: ' + height.toFixed(1) + 'm');
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Game state variables
var score = 0;
var towerHeight = 0;
var gameActive = true;
var level = 1;
var blockSpeed = 8;
var perfectMatches = 0;
var blockColors = [0x3498db,
// Blue
0xe74c3c,
// Red
0x2ecc71,
// Green
0xf39c12,
// Orange
0x9b59b6,
// Purple
0x1abc9c // Turquoise
];
// Fruit variables
var fruits = [];
var fruitTypes = ['apple', 'banana', 'orange', 'grape', 'watermelon'];
var lastFruitTime = 0;
var fruitGenerationRate = 120; // frames between fruit generation
// Game objects
var blocks = [];
var currentBlock = null;
var baseFloor = null;
var scoreDisplay = null;
var lastBlockPosition = {
	x: 2048 / 2,
	width: 512
};
var dropY = 200; // Starting Y position for dropping blocks
// Initialize the game
function initGame() {
	// Create base floor
	baseFloor = LK.getAsset('baseFloor', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	baseFloor.x = 2048 / 2;
	baseFloor.y = 2732 - 100;
	game.addChild(baseFloor);
	// Set last block position to match the base floor
	lastBlockPosition = {
		x: baseFloor.x,
		width: baseFloor.width,
		y: baseFloor.y - baseFloor.height / 2
	};
	// Initialize score display
	scoreDisplay = new ScoreDisplay();
	scoreDisplay.x = 2048 / 2;
	scoreDisplay.y = 100;
	game.addChild(scoreDisplay);
	// Create first block
	createNewBlock();
	// Play background music
	LK.playMusic('backgroundMusic');
}
// Create a new block to drop
function createNewBlock() {
	if (!gameActive) {
		return;
	}
	// Select a random color
	var color = blockColors[Math.floor(Math.random() * blockColors.length)];
	// Create new block with the current platform width
	currentBlock = new Block(color, lastBlockPosition.width);
	currentBlock.y = dropY;
	currentBlock.movementSpeed = blockSpeed;
	// Add block to the game and blocks array
	game.addChild(currentBlock);
	blocks.push(currentBlock);
}
// Handle game clicks/taps
function handleTap() {
	if (!currentBlock || !gameActive) {
		return;
	}
	// Calculate overlap with previous block
	var overlapLeft = Math.max(lastBlockPosition.x - lastBlockPosition.width / 2, currentBlock.x - currentBlock.originalWidth / 2);
	var overlapRight = Math.min(lastBlockPosition.x + lastBlockPosition.width / 2, currentBlock.x + currentBlock.originalWidth / 2);
	var overlapWidth = overlapRight - overlapLeft;
	// If blocks don't overlap at all, game over
	if (overlapWidth <= 0) {
		gameOver();
		return;
	}
	// Play place block sound
	LK.getSound('placeBlock').play();
	// Mark the block as placed
	currentBlock.placed = true;
	// Calculate the new position and width for the current block
	var newCenterX = overlapLeft + overlapWidth / 2;
	var newWidth = overlapWidth;
	// Handle partial block
	if (newWidth < currentBlock.originalWidth) {
		// Determine which side falls off
		var fallBlockWidth = currentBlock.originalWidth - newWidth;
		var fallBlock = new Block(currentBlock.tint, fallBlockWidth);
		if (currentBlock.x < newCenterX) {
			// Left part falls off
			fallBlock.x = currentBlock.x - newWidth / 2;
			fallBlock.fallDirection = -1;
			currentBlock.resize(newWidth, newCenterX - currentBlock.x);
		} else {
			// Right part falls off
			fallBlock.x = currentBlock.x + newWidth / 2;
			fallBlock.fallDirection = 1;
			currentBlock.resize(newWidth, newCenterX - currentBlock.x);
		}
		fallBlock.y = currentBlock.y;
		fallBlock.placed = true;
		game.addChild(fallBlock);
		blocks.push(fallBlock);
		// Play falling sound
		LK.getSound('fallBlock').play();
	} else {
		// Perfect match!
		perfectMatches++;
		LK.getSound('perfectMatch').play();
		// Visual effect for perfect match
		LK.effects.flashObject(currentBlock, 0xFFFFFF, 300);
	}
	// Update the position of the current block
	currentBlock.x = newCenterX;
	// Calculate score based on match accuracy
	var accuracy = newWidth / currentBlock.originalWidth;
	var blockScore = Math.round(accuracy * 100);
	// Perfect bonus
	if (accuracy >= 0.95) {
		blockScore += 50;
	}
	score += blockScore;
	// Update tower height (each block adds height)
	towerHeight += currentBlock.height / 150; // Convert to "meters"
	// Update last block position for next block
	lastBlockPosition = {
		x: currentBlock.x,
		width: newWidth,
		y: currentBlock.y - currentBlock.height / 2
	};
	// Update score display
	scoreDisplay.updateScore(score, towerHeight);
	// Move the tower down if it's getting too high
	if (currentBlock.y < 2732 / 2) {
		var shiftAmount = 100;
		for (var i = 0; i < blocks.length; i++) {
			if (blocks[i].placed && !blocks[i].fallDirection) {
				blocks[i].y += shiftAmount;
			}
		}
		lastBlockPosition.y += shiftAmount;
	}
	// Increase difficulty based on tower height
	increaseGameDifficulty();
	// Create a new block
	createNewBlock();
}
// Increase game difficulty as tower gets higher
function increaseGameDifficulty() {
	// Increase movement speed based on tower height
	level = Math.floor(towerHeight / 10) + 1;
	blockSpeed = 8 + level;
	// Every 5 levels, reduce block width by 10% (min 30% of original)
	var widthReduction = Math.min(0.7, 1 - Math.floor(level / 5) * 0.1);
	lastBlockPosition.width = Math.max(150, baseFloor.width * widthReduction);
}
// Game over function
function gameOver() {
	gameActive = false;
	// Play falling sound
	LK.getSound('fallBlock').play();
	// Make current block fall
	if (currentBlock) {
		currentBlock.fallDirection = currentBlock.x > 2048 / 2 ? 1 : -1;
	}
	// Flash screen
	LK.effects.flashScreen(0xff0000, 500);
	// Show game over after a short delay
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 1000);
}
// Game tick update
game.update = function () {
	// Update all blocks
	for (var i = blocks.length - 1; i >= 0; i--) {
		if (blocks[i]) {
			blocks[i].update();
		}
	}
	// Generate fruits periodically when game is active
	if (gameActive && LK.ticks - lastFruitTime > fruitGenerationRate) {
		lastFruitTime = LK.ticks;
		// Create a random fruit
		var fruitType = fruitTypes[Math.floor(Math.random() * fruitTypes.length)];
		var fruit = new Fruit(fruitType);
		// Position at bottom of screen with random x
		fruit.x = Math.random() * 2048;
		fruit.y = 2732 + 50;
		// Add to game
		game.addChild(fruit);
		fruits.push(fruit);
		// Adjust generation rate based on level (faster fruit generation at higher levels)
		fruitGenerationRate = Math.max(60, 120 - level * 5);
	}
	// Update fruits and check for collisions
	for (var i = fruits.length - 1; i >= 0; i--) {
		if (fruits[i]) {
			fruits[i].update();
			// Check if fruit has been tapped
			if (fruits[i].tapped) {
				// Add points based on fruit value
				score += fruits[i].value;
				scoreDisplay.updateScore(score, towerHeight);
				// Remove the fruit
				fruits[i].destroy();
				fruits.splice(i, 1);
			}
			// Remove if off screen
			if (fruits[i] && fruits[i].y < -100) {
				fruits[i].destroy();
				fruits.splice(i, 1);
			}
		}
	}
};
// Event handlers
game.down = function (x, y, obj) {
	// First check if we tapped on a fruit
	var fruitTapped = false;
	for (var i = 0; i < fruits.length; i++) {
		// Convert tap position to fruit's parent coordinates
		var localPos = fruits[i].parent.toLocal({
			x: x,
			y: y
		});
		// Check if tap is within fruit bounds
		if (Math.abs(localPos.x - fruits[i].x) < fruits[i].width / 2 && Math.abs(localPos.y - fruits[i].y) < fruits[i].height / 2) {
			// Mark fruit as tapped
			fruits[i].tapped = true;
			// Visual effect for tapped fruit
			LK.effects.flashObject(fruits[i], 0xFFFFFF, 100);
			fruitTapped = true;
			break;
		}
	}
	// If no fruit was tapped, handle normal block tap
	if (!fruitTapped) {
		handleTap();
	}
};
// Initialize the game
initGame();