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

/**** 
* Classes
****/ 
var Animal = Container.expand(function () {
	var self = Container.call(this);
	var animalGraphics = self.attachAsset('animal', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speedX = (Math.random() - 0.5) * 4;
	self.speedY = (Math.random() - 0.5) * 4;
	self.lifeTime = 300; // 5 seconds at 60fps
	self.update = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		self.lifeTime--;
		if (self.lifeTime <= 0) {
			self.destroy();
		}
	};
	return self;
});
var Fire = Container.expand(function (size) {
	var self = Container.call(this);
	self.size = size || 1;
	self.maxSize = 10; // Maximum fire size
	self.waterNeeded = self.size;
	self.growthTimer = 0;
	self.growthInterval = 180; // Grow every 3 seconds (180 ticks at 60fps)
	var fireGraphics = self.attachAsset(self.size === 1 ? 'smallFire' : 'largeFire', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add flickering animation
	self.animOffset = Math.random() * Math.PI * 2;
	self.update = function () {
		// Growth logic
		self.growthTimer++;
		if (self.growthTimer >= self.growthInterval && self.size < self.maxSize) {
			self.size++;
			self.waterNeeded = self.size;
			self.growthTimer = 0;
			// Update size text
			if (self.sizeText) {
				self.sizeText.setText(self.size.toString());
			}
			// Update visual scale based on size
			var scale = 1 + (self.size - 1) * 0.2; // Increase scale by 20% per size level
			tween(fireGraphics, {
				scaleX: scale,
				scaleY: scale
			}, {
				duration: 500,
				easing: tween.easeOut
			});
			// Change color intensity based on size
			var intensity = Math.min(1, 0.5 + (self.size - 1) * 0.1);
			var redComponent = 0xFF;
			var greenBlueComponent = Math.floor((1 - intensity) * 0x44);
			var redTint = redComponent << 16 | greenBlueComponent << 8 | greenBlueComponent;
			tween(fireGraphics, {
				tint: redTint
			}, {
				duration: 500,
				easing: tween.easeOut
			});
		}
		// Flickering animation
		var flicker = 0.8 + Math.sin(LK.ticks * 0.1 + self.animOffset) * 0.2;
		fireGraphics.alpha = flicker;
		var baseScaleX = fireGraphics.scaleX || 1;
		var baseScaleY = fireGraphics.scaleY || 1;
		fireGraphics.scaleX = baseScaleX + Math.sin(LK.ticks * 0.08 + self.animOffset) * 0.1;
		fireGraphics.scaleY = baseScaleY + Math.sin(LK.ticks * 0.08 + self.animOffset) * 0.1;
	};
	return self;
});
var SnakeSegment = Container.expand(function (isHead) {
	var self = Container.call(this);
	var segmentGraphics = self.attachAsset(isHead ? 'snakeHead' : 'snakeBody', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	return self;
});
var WaterDroplet = Container.expand(function () {
	var self = Container.call(this);
	var waterGraphics = self.attachAsset('water', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Add floating animation
	self.animOffset = Math.random() * Math.PI * 2;
	self.update = function () {
		waterGraphics.y = Math.sin(LK.ticks * 0.05 + self.animOffset) * 5;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2F4F2F
});

/**** 
* Game Code
****/ 
// Add forest background
var forestBackground = game.attachAsset('forest', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
// Game variables
var snake = [];
var snakeDirection = {
	x: 1,
	y: 0
};
var nextDirection = {
	x: 1,
	y: 0
};
var gridSize = 60;
var gameWidth = 2048;
var gameHeight = 2732;
var cols = Math.floor(gameWidth / gridSize);
var rows = Math.floor(gameHeight / gridSize);
var waterDroplets = [];
var fires = [];
var waterCollected = 0;
var moveTimer = 0;
var moveInterval = 15; // Snake moves every 15 ticks
var gameRunning = true;
var animals = [];
var maxFires = 1; // Start with 1 fire, increase with level
// UI Elements
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var waterTxt = new Text2('Water: 0', {
	size: 50,
	fill: 0x1E90FF
});
waterTxt.anchor.set(1, 0);
waterTxt.x = -20;
waterTxt.y = 80;
LK.gui.topRight.addChild(waterTxt);
// Initialize snake
function initSnake() {
	// Create initial snake with 3 segments
	for (var i = 0; i < 3; i++) {
		var segment = new SnakeSegment(i === 0);
		segment.x = (5 - i) * gridSize + gridSize / 2;
		segment.y = 5 * gridSize + gridSize / 2;
		snake.push(segment);
		game.addChild(segment);
	}
}
// Convert grid coordinates to world coordinates
function gridToWorld(gridX, gridY) {
	return {
		x: gridX * gridSize + gridSize / 2,
		y: gridY * gridSize + gridSize / 2
	};
}
// Convert world coordinates to grid coordinates
function worldToGrid(worldX, worldY) {
	return {
		x: Math.floor(worldX / gridSize),
		y: Math.floor(worldY / gridSize)
	};
}
// Get random empty grid position
function getRandomEmptyPosition() {
	var attempts = 0;
	while (attempts < 100) {
		var gridX = Math.floor(Math.random() * cols);
		var gridY = Math.floor(Math.random() * rows);
		var worldPos = gridToWorld(gridX, gridY);
		var occupied = false;
		// Check if position is occupied by snake
		for (var i = 0; i < snake.length; i++) {
			var snakeGrid = worldToGrid(snake[i].x, snake[i].y);
			if (snakeGrid.x === gridX && snakeGrid.y === gridY) {
				occupied = true;
				break;
			}
		}
		// Check if position is occupied by water
		if (!occupied) {
			for (var i = 0; i < waterDroplets.length; i++) {
				var waterGrid = worldToGrid(waterDroplets[i].x, waterDroplets[i].y);
				if (waterGrid.x === gridX && waterGrid.y === gridY) {
					occupied = true;
					break;
				}
			}
		}
		// Check if position is occupied by fire
		if (!occupied) {
			for (var i = 0; i < fires.length; i++) {
				var fireGrid = worldToGrid(fires[i].x, fires[i].y);
				if (fireGrid.x === gridX && fireGrid.y === gridY) {
					occupied = true;
					break;
				}
			}
		}
		if (!occupied) {
			return worldPos;
		}
		attempts++;
	}
	// Fallback to center if no empty position found
	return gridToWorld(Math.floor(cols / 2), Math.floor(rows / 2));
}
// Spawn water droplet
function spawnWater() {
	var pos = getRandomEmptyPosition();
	var water = new WaterDroplet();
	water.x = pos.x;
	water.y = pos.y;
	waterDroplets.push(water);
	game.addChild(water);
}
// Spawn fire
function spawnFire() {
	var pos = getRandomEmptyPosition();
	var fireSize = Math.random() < 0.7 ? 1 : 2; // 70% chance for small fire
	var fire = new Fire(fireSize);
	fire.x = pos.x;
	fire.y = pos.y;
	// Add size display text
	fire.sizeText = new Text2(fire.size.toString(), {
		size: 30,
		fill: 0xFFFFFF
	});
	fire.sizeText.anchor.set(0.5, 0.5);
	fire.sizeText.x = 0;
	fire.sizeText.y = -50;
	fire.addChild(fire.sizeText);
	fires.push(fire);
	game.addChild(fire);
	// Spawn escaping animal near fire
	var animal = new Animal();
	animal.x = pos.x + (Math.random() - 0.5) * 120;
	animal.y = pos.y + (Math.random() - 0.5) * 120;
	animals.push(animal);
	game.addChild(animal);
}
// Move snake
function moveSnake() {
	if (!gameRunning) {
		return;
	}
	// Update direction
	snakeDirection.x = nextDirection.x;
	snakeDirection.y = nextDirection.y;
	// Calculate new head position
	var head = snake[0];
	var headGrid = worldToGrid(head.x, head.y);
	var newHeadGrid = {
		x: headGrid.x + snakeDirection.x,
		y: headGrid.y + snakeDirection.y
	};
	// Check boundaries
	if (newHeadGrid.x < 0 || newHeadGrid.x >= cols || newHeadGrid.y < 0 || newHeadGrid.y >= rows) {
		gameOver();
		return;
	}
	// Check self collision
	for (var i = 0; i < snake.length; i++) {
		var segmentGrid = worldToGrid(snake[i].x, snake[i].y);
		if (segmentGrid.x === newHeadGrid.x && segmentGrid.y === newHeadGrid.y) {
			gameOver();
			return;
		}
	}
	// Move snake body
	for (var i = snake.length - 1; i > 0; i--) {
		snake[i].x = snake[i - 1].x;
		snake[i].y = snake[i - 1].y;
	}
	// Move head
	var newHeadPos = gridToWorld(newHeadGrid.x, newHeadGrid.y);
	head.x = newHeadPos.x;
	head.y = newHeadPos.y;
	// Rotate head based on direction
	if (snakeDirection.x === 1 && snakeDirection.y === 0) {
		// Moving right
		head.children[0].rotation = 0;
	} else if (snakeDirection.x === -1 && snakeDirection.y === 0) {
		// Moving left
		head.children[0].rotation = Math.PI;
	} else if (snakeDirection.x === 0 && snakeDirection.y === 1) {
		// Moving down
		head.children[0].rotation = Math.PI / 2;
	} else if (snakeDirection.x === 0 && snakeDirection.y === -1) {
		// Moving up
		head.children[0].rotation = -Math.PI / 2;
	}
	// Check water collection
	for (var i = waterDroplets.length - 1; i >= 0; i--) {
		var water = waterDroplets[i];
		var waterGrid = worldToGrid(water.x, water.y);
		if (waterGrid.x === newHeadGrid.x && waterGrid.y === newHeadGrid.y) {
			// Collect water
			waterCollected++;
			waterTxt.setText('Water: ' + waterCollected);
			LK.setScore(LK.getScore() + 10);
			scoreTxt.setText('Score: ' + LK.getScore());
			// Grow snake
			var lastSegment = snake[snake.length - 1];
			var newSegment = new SnakeSegment(false);
			newSegment.x = lastSegment.x;
			newSegment.y = lastSegment.y;
			snake.push(newSegment);
			game.addChild(newSegment);
			// Remove water
			water.destroy();
			waterDroplets.splice(i, 1);
			// Play sound
			LK.getSound('collect').play();
			// Spawn new water
			spawnWater();
			break;
		}
	}
	// Check fire extinguishing
	for (var i = fires.length - 1; i >= 0; i--) {
		var fire = fires[i];
		var fireGrid = worldToGrid(fire.x, fire.y);
		if (fireGrid.x === newHeadGrid.x && fireGrid.y === newHeadGrid.y) {
			if (waterCollected >= fire.waterNeeded) {
				// Extinguish fire
				waterCollected -= fire.waterNeeded;
				waterTxt.setText('Water: ' + waterCollected);
				LK.setScore(LK.getScore() + (fire.size === 1 ? 50 : 100));
				scoreTxt.setText('Score: ' + LK.getScore());
				// Remove fire
				fire.destroy();
				fires.splice(i, 1);
				// Play sound
				LK.getSound('extinguish').play();
				// Spawn new fire if needed
				if (fires.length < maxFires) {
					spawnFire();
				}
				// Flash effect
				LK.effects.flashObject(head, 0x00FF00, 300);
			} else {
				// Snake burns when touching fire without enough water
				LK.effects.flashObject(head, 0xFF0000, 500);
				gameOver();
				return;
			}
			break;
		}
	}
}
// Game over
function gameOver() {
	gameRunning = false;
	LK.showGameOver();
}
// Touch controls
var touchStartX = 0;
var touchStartY = 0;
var minSwipeDistance = 100;
game.down = function (x, y, obj) {
	touchStartX = x;
	touchStartY = y;
};
game.up = function (x, y, obj) {
	if (!gameRunning) {
		return;
	}
	var deltaX = x - touchStartX;
	var deltaY = y - touchStartY;
	var distance = Math.sqrt(deltaX * deltaX + deltaY * deltaY);
	if (distance < minSwipeDistance) {
		return;
	}
	var absX = Math.abs(deltaX);
	var absY = Math.abs(deltaY);
	if (absX > absY) {
		// Horizontal swipe
		if (deltaX > 0 && snakeDirection.x !== -1) {
			nextDirection = {
				x: 1,
				y: 0
			}; // Right
		} else if (deltaX < 0 && snakeDirection.x !== 1) {
			nextDirection = {
				x: -1,
				y: 0
			}; // Left
		}
	} else {
		// Vertical swipe
		if (deltaY > 0 && snakeDirection.y !== -1) {
			nextDirection = {
				x: 0,
				y: 1
			}; // Down
		} else if (deltaY < 0 && snakeDirection.y !== 1) {
			nextDirection = {
				x: 0,
				y: -1
			}; // Up
		}
	}
};
// Initialize game
initSnake();
spawnWater();
spawnWater();
spawnFire();
// Game update loop
game.update = function () {
	if (!gameRunning) {
		return;
	}
	moveTimer++;
	if (moveTimer >= moveInterval) {
		moveTimer = 0;
		moveSnake();
	}
	// Spawn additional water periodically
	if (LK.ticks % 600 === 0 && waterDroplets.length < 4) {
		spawnWater();
	}
	// Increase difficulty - add more fires at higher scores
	var currentLevel = Math.floor(LK.getScore() / 300) + 1;
	maxFires = Math.min(currentLevel, 5); // Maximum 5 fires
	if (fires.length < maxFires && LK.ticks % 900 === 0) {
		spawnFire();
	}
	// Clean up dead animals
	for (var i = animals.length - 1; i >= 0; i--) {
		if (animals[i].lifeTime <= 0) {
			animals.splice(i, 1);
		}
	}
	// Make game slightly faster as score increases
	if (LK.getScore() > 0 && LK.getScore() % 200 === 0) {
		moveInterval = Math.max(8, moveInterval - 1);
	}
};