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

/**** 
* Classes
****/ 
var Block = Container.expand(function () {
	var self = Container.call(this);
	self.blockWidth = 200;
	self.blockHeight = 60;
	var blockGraphics = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.setWidth = function (newWidth) {
		self.blockWidth = newWidth;
		blockGraphics.width = newWidth;
	};
	self.getWidth = function () {
		return self.blockWidth;
	};
	return self;
});
var FallingBlock = Container.expand(function () {
	var self = Container.call(this);
	self.blockWidth = 200;
	self.blockHeight = 60;
	self.speed = 200;
	self.stopped = false;
	var blockGraphics = self.attachAsset('fallingBlock', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		if (!self.stopped) {
			self.y += self.speed / 60; // Proper frame-based movement
		}
	};
	self.stop = function () {
		self.stopped = true;
	};
	self.setWidth = function (newWidth) {
		self.blockWidth = newWidth;
		blockGraphics.width = newWidth;
	};
	self.getWidth = function () {
		return self.blockWidth;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
// Game variables
var game = new LK.Game({
	backgroundColor: 0x1a1a2e
});

/**** 
* Game Code
****/ 
// Game variables
// Import tween plugin for animations
// Initialize game assets
var tower = [];
var currentFallingBlock = null;
var gameRunning = true;
var currentPlatformWidth = 200;
var dropSpeed = 200;
var perfectStreak = 0;
var lastDropTime = 0;
var dropInterval = 2000; // 2 seconds initially
// UI Elements
var scoreTxt = new Text2('0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.y = 50;
var streakTxt = new Text2('', {
	size: 40,
	fill: 0xFFD700
});
streakTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(streakTxt);
streakTxt.y = 150;
// Create base platform
var basePlatform = game.addChild(new Block());
basePlatform.x = 1024;
basePlatform.y = 2400;
tower.push(basePlatform);
function spawnFallingBlock() {
	if (!gameRunning || currentFallingBlock) return;
	currentFallingBlock = game.addChild(new FallingBlock());
	currentFallingBlock.setWidth(currentPlatformWidth);
	// Random horizontal position
	var minX = currentPlatformWidth / 2;
	var maxX = 2048 - currentPlatformWidth / 2;
	currentFallingBlock.x = Math.random() * (maxX - minX) + minX;
	currentFallingBlock.y = -30;
	// Increase speed based on tower height
	var speedMultiplier = 1 + tower.length * 0.1;
	currentFallingBlock.speed = dropSpeed * speedMultiplier;
}
function dropBlock() {
	if (!currentFallingBlock || !gameRunning) return;
	currentFallingBlock.stop();
	var topBlock = tower[tower.length - 1];
	var alignment = Math.abs(currentFallingBlock.x - topBlock.x);
	var tolerance = 10; // Perfect drop tolerance
	if (alignment > currentPlatformWidth) {
		// Complete miss - game over
		gameOver();
		return;
	}
	var newBlock = game.addChild(new Block());
	var overlap = currentPlatformWidth - alignment * 2;
	var newWidth = Math.max(overlap, 20); // Minimum width of 20
	// Position new block
	if (currentFallingBlock.x < topBlock.x) {
		newBlock.x = topBlock.x - (currentPlatformWidth - newWidth) / 2;
	} else {
		newBlock.x = topBlock.x + (currentPlatformWidth - newWidth) / 2;
	}
	newBlock.y = topBlock.y - newBlock.blockHeight;
	newBlock.setWidth(newWidth);
	// Check if it's a perfect drop
	var isPerfect = alignment <= tolerance;
	if (isPerfect) {
		perfectStreak++;
		LK.getSound('perfect').play();
		// Flash block green for perfect drop
		tween(newBlock, {
			tint: 0x00FF00
		}, {
			duration: 200,
			onFinish: function onFinish() {
				tween(newBlock, {
					tint: 0xFFFFFF
				}, {
					duration: 200
				});
			}
		});
		// Bonus points for perfect drops
		LK.setScore(LK.getScore() + 10 + perfectStreak * 5);
	} else {
		perfectStreak = 0;
		currentPlatformWidth = newWidth;
		LK.getSound('trim').play();
		// Flash block red for trimmed drop
		tween(newBlock, {
			tint: 0xFF6666
		}, {
			duration: 200,
			onFinish: function onFinish() {
				tween(newBlock, {
					tint: 0xFFFFFF
				}, {
					duration: 200
				});
			}
		});
		LK.setScore(LK.getScore() + 1);
	}
	LK.getSound('drop').play();
	tower.push(newBlock);
	// Remove falling block
	currentFallingBlock.destroy();
	currentFallingBlock = null;
	// Update UI
	scoreTxt.setText(LK.getScore());
	if (perfectStreak > 0) {
		streakTxt.setText('Perfect x' + perfectStreak);
	} else {
		streakTxt.setText('');
	}
	// Adjust camera to follow tower (keep tower in center of screen)
	if (tower.length > 5) {
		// Start following after 5 blocks
		var cameraY = 2400 - newBlock.y - 800; // Keep tower visible in center
		tween(game, {
			y: cameraY
		}, {
			duration: 500,
			easing: tween.easeOut
		});
	}
	// Increase difficulty
	dropInterval = Math.max(800, dropInterval - 20); // Minimum 0.8 seconds
	lastDropTime = LK.ticks;
}
function gameOver() {
	gameRunning = false;
	// Flash screen red
	LK.effects.flashScreen(0xFF0000, 1000);
	// Show game over after a brief delay
	LK.setTimeout(function () {
		LK.showGameOver();
	}, 1000);
}
// Touch/click handler
game.down = function (x, y, obj) {
	if (currentFallingBlock && !currentFallingBlock.stopped) {
		dropBlock();
	}
};
// Game update loop
game.update = function () {
	// Spawn new falling block if needed (convert milliseconds to frames: 60fps)
	if (gameRunning && !currentFallingBlock && LK.ticks - lastDropTime > dropInterval * 60 / 1000) {
		spawnFallingBlock();
	}
	// Check if falling block went off screen (should not happen in normal gameplay)
	if (currentFallingBlock && currentFallingBlock.y > 2800) {
		gameOver();
	}
};
// Initialize game
lastDropTime = LK.ticks;
spawnFallingBlock();