/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1", {
	highScore: 0
});

/**** 
* Classes
****/ 
var Cavern = Container.expand(function () {
	var self = Container.call(this);
	var cavernGraphics = self.attachAsset('cavern', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -2;
	self.update = function () {
		self.x += self.speed;
		// If cavern moves off-screen, we'll handle its removal in the main game loop
	};
	return self;
});
var Gem = Container.expand(function () {
	var self = Container.call(this);
	var gemGraphics = self.attachAsset('gem', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.value = 10;
	self.collect = function () {
		LK.getSound('collect').play();
		LK.effects.flashObject(self, 0xFFFFFF, 300);
	};
	return self;
});
var Obstacle = Container.expand(function () {
	var self = Container.call(this);
	var obstacleGraphics = self.attachAsset('obstacle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.update = function () {
		self.x += self.speed;
		// If obstacle moves off-screen, we'll handle its removal in the main game loop
	};
	return self;
});
var OxygenBubble = Container.expand(function () {
	var self = Container.call(this);
	var bubbleGraphics = self.attachAsset('oxygen', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.oxygenValue = 20;
	self.speed = -1;
	self.oscillationSpeed = 0.05;
	self.initialY = 0;
	self.update = function () {
		self.x += self.speed;
		self.y = self.initialY + Math.sin(LK.ticks * self.oscillationSpeed) * 15;
		// If bubble moves off-screen, we'll handle its removal in the main game loop
	};
	self.collect = function () {
		LK.getSound('bubble').play();
		LK.effects.flashObject(self, 0xFFFFFF, 300);
	};
	return self;
});
var SeaCreature = Container.expand(function () {
	var self = Container.call(this);
	var creatureGraphics = self.attachAsset('seaCreature', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = -2;
	self.amplitude = 50;
	self.frequency = 0.02;
	self.initialY = 0;
	self.update = function () {
		self.x += self.speed;
		self.y = self.initialY + Math.sin(self.x * self.frequency) * self.amplitude;
		// If creature moves off-screen, we'll handle its removal in the main game loop
	};
	return self;
});
var Submarine = Container.expand(function () {
	var self = Container.call(this);
	var submarineGraphics = self.attachAsset('submarine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 0;
	self.verticalSpeed = 0;
	self.acceleration = 0.2;
	self.maxSpeed = 10;
	self.deceleration = 0.1;
	self.update = function () {
		// Apply physics
		self.x += self.speed;
		self.y += self.verticalSpeed;
		// Apply deceleration
		if (self.speed > 0) {
			self.speed -= self.deceleration;
			if (self.speed < 0) {
				self.speed = 0;
			}
		} else if (self.speed < 0) {
			self.speed += self.deceleration;
			if (self.speed > 0) {
				self.speed = 0;
			}
		}
		// Apply gravity
		self.verticalSpeed += 0.1;
		// Restrict submarine from going above the water surface
		if (self.y < 100) {
			self.y = 100;
			self.verticalSpeed = 0;
		}
		// Restrict submarine from going outside the horizontal boundaries
		if (self.x < 100) {
			self.x = 100;
			self.speed = 0;
		} else if (self.x > 2048 - 100) {
			self.x = 2048 - 100;
			self.speed = 0;
		}
	};
	self.moveLeft = function () {
		self.speed = Math.max(self.speed - self.acceleration, -self.maxSpeed);
	};
	self.moveRight = function () {
		self.speed = Math.min(self.speed + self.acceleration, self.maxSpeed);
	};
	self.moveUp = function () {
		self.verticalSpeed = Math.max(self.verticalSpeed - self.acceleration * 2, -self.maxSpeed);
	};
	self.hit = function () {
		LK.getSound('crash').play();
		LK.effects.flashObject(self, 0xFF0000, 500);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000033
});

/**** 
* Game Code
****/ 
// Create UI elements
var scoreTxt = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0, 0);
LK.gui.topRight.addChild(scoreTxt);
scoreTxt.x = -350;
scoreTxt.y = 50;
var highScoreTxt = new Text2('High Score: ' + storage.highScore, {
	size: 40,
	fill: 0xAAAAFF
});
highScoreTxt.anchor.set(0, 0);
LK.gui.topRight.addChild(highScoreTxt);
highScoreTxt.x = -350;
highScoreTxt.y = 120;
var depthTxt = new Text2('Depth: 0m', {
	size: 50,
	fill: 0xFFFFFF
});
depthTxt.anchor.set(0, 0);
LK.gui.topLeft.addChild(depthTxt);
depthTxt.x = 150;
depthTxt.y = 50;
// Create oxygen bar background
var oxygenBarBg = game.addChild(LK.getAsset('oxygenBarBg', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 80
}));
// Create oxygen bar foreground
var oxygenBar = game.addChild(LK.getAsset('oxygenBar', {
	anchorX: 0,
	anchorY: 0.5,
	x: 2048 / 2 - 400,
	y: 80
}));
// Create submarine
var submarine = game.addChild(new Submarine());
submarine.x = 500;
submarine.y = 400;
// Game variables
var score = 0;
var depth = 0;
var oxygen = 100;
var gameSpeed = 1;
var spawnTimer = 0;
var oxygenDecreaseRate = 0.1;
var gems = [];
var obstacles = [];
var seaCreatures = [];
var oxygenBubbles = [];
var caverns = [];
var dragNode = null;
var lastTouchY = 0;
// Play background music
LK.playMusic('underwaterAmbience');
// Generate initial caverns
function generateInitialCaverns() {
	var cavernSpacing = 800;
	var numInitialCaverns = Math.ceil(2048 / cavernSpacing) + 1;
	for (var i = 0; i < numInitialCaverns; i++) {
		var cavern = new Cavern();
		cavern.y = 2732 - 150; // Bottom of the screen
		cavern.x = i * cavernSpacing;
		game.addChild(cavern);
		caverns.push(cavern);
	}
}
generateInitialCaverns();
// Handle touch and drag events
function handleMove(x, y, obj) {
	if (dragNode) {
		var deltaY = lastTouchY - y;
		// If dragging upward, ascend
		if (deltaY > 0) {
			submarine.moveUp();
		}
		// If position is to the left of submarine, move left
		if (x < submarine.x - 50) {
			submarine.moveLeft();
		}
		// If position is to the right of submarine, move right
		else if (x > submarine.x + 50) {
			submarine.moveRight();
		}
		lastTouchY = y;
	}
}
game.move = handleMove;
game.down = function (x, y, obj) {
	dragNode = submarine;
	lastTouchY = y;
	handleMove(x, y, obj);
};
game.up = function (x, y, obj) {
	dragNode = null;
};
// Spawn game objects
function spawnGem() {
	var gem = new Gem();
	gem.x = 2048 + 50;
	gem.y = 300 + Math.random() * (2732 - 500);
	gem.value = Math.floor(10 + depth / 100);
	game.addChild(gem);
	gems.push(gem);
}
function spawnObstacle() {
	var obstacle = new Obstacle();
	obstacle.x = 2048 + 125;
	obstacle.y = 200 + Math.random() * (2732 - 400);
	obstacle.speed = -3 - gameSpeed * 0.5;
	game.addChild(obstacle);
	obstacles.push(obstacle);
}
function spawnSeaCreature() {
	var creature = new SeaCreature();
	creature.x = 2048 + 75;
	creature.y = 300 + Math.random() * (2732 - 600);
	creature.initialY = creature.y;
	creature.speed = -4 - gameSpeed * 0.5;
	game.addChild(creature);
	seaCreatures.push(creature);
}
function spawnOxygenBubble() {
	var bubble = new OxygenBubble();
	bubble.x = 2048 + 30;
	bubble.y = 300 + Math.random() * (2732 - 600);
	bubble.initialY = bubble.y;
	bubble.speed = -2 - gameSpeed * 0.3;
	game.addChild(bubble);
	oxygenBubbles.push(bubble);
}
function spawnCavern() {
	var cavern = new Cavern();
	cavern.y = 2732 - 150; // Bottom of the screen
	cavern.x = 2048 + 125;
	cavern.speed = -2 - gameSpeed * 0.3;
	game.addChild(cavern);
	caverns.push(cavern);
}
// Main game update loop
game.update = function () {
	// Update depth based on submarine position
	depth = Math.floor((submarine.y - 100) / 10);
	depthTxt.setText('Depth: ' + depth + 'm');
	// Increase game speed based on depth
	gameSpeed = 1 + depth / 500;
	// Update oxygen level
	oxygen -= oxygenDecreaseRate * gameSpeed;
	if (oxygen <= 0) {
		oxygen = 0;
		LK.effects.flashScreen(0x0000FF, 1000);
		// Update high score if needed
		if (score > storage.highScore) {
			storage.highScore = score;
			highScoreTxt.setText('High Score: ' + storage.highScore);
		}
		LK.showGameOver();
	}
	// Update oxygen bar width
	oxygenBar.width = oxygen / 100 * 800;
	// Spawn game objects based on timers
	spawnTimer++;
	if (spawnTimer % 120 === 0) {
		spawnGem();
	}
	if (spawnTimer % 180 === 0) {
		spawnObstacle();
	}
	if (spawnTimer % 240 === 0) {
		spawnSeaCreature();
	}
	if (spawnTimer % 300 === 0) {
		spawnOxygenBubble();
	}
	if (spawnTimer % 200 === 0) {
		spawnCavern();
	}
	// Check for and remove off-screen objects
	for (var i = gems.length - 1; i >= 0; i--) {
		var gem = gems[i];
		// Check for collision with submarine
		if (gem.intersects(submarine)) {
			gem.collect();
			score += gem.value;
			scoreTxt.setText('Score: ' + score);
			gem.destroy();
			gems.splice(i, 1);
			continue;
		}
		// Remove if off-screen
		if (gem.x < -50) {
			gem.destroy();
			gems.splice(i, 1);
		}
	}
	for (var i = obstacles.length - 1; i >= 0; i--) {
		var obstacle = obstacles[i];
		obstacle.update();
		// Check for collision with submarine
		if (obstacle.intersects(submarine)) {
			submarine.hit();
			oxygen -= 10;
			// Push submarine back
			submarine.speed = -5;
			submarine.verticalSpeed = -3;
		}
		// Remove if off-screen
		if (obstacle.x < -125) {
			obstacle.destroy();
			obstacles.splice(i, 1);
		}
	}
	for (var i = seaCreatures.length - 1; i >= 0; i--) {
		var creature = seaCreatures[i];
		creature.update();
		// Check for collision with submarine
		if (creature.intersects(submarine)) {
			submarine.hit();
			oxygen -= 5;
			// Push submarine back slightly
			submarine.speed = -3;
		}
		// Remove if off-screen
		if (creature.x < -75) {
			creature.destroy();
			seaCreatures.splice(i, 1);
		}
	}
	for (var i = oxygenBubbles.length - 1; i >= 0; i--) {
		var bubble = oxygenBubbles[i];
		bubble.update();
		// Check for collision with submarine
		if (bubble.intersects(submarine)) {
			bubble.collect();
			oxygen = Math.min(oxygen + bubble.oxygenValue, 100);
			bubble.destroy();
			oxygenBubbles.splice(i, 1);
			continue;
		}
		// Remove if off-screen
		if (bubble.x < -30) {
			bubble.destroy();
			oxygenBubbles.splice(i, 1);
		}
	}
	for (var i = caverns.length - 1; i >= 0; i--) {
		var cavern = caverns[i];
		cavern.update();
		// Remove if off-screen
		if (cavern.x < -125) {
			cavern.destroy();
			caverns.splice(i, 1);
		}
	}
	// Update submarine
	submarine.update();
	// Win condition - reaching a certain score
	if (score >= 1000) {
		// Update high score
		if (score > storage.highScore) {
			storage.highScore = score;
			highScoreTxt.setText('High Score: ' + storage.highScore);
		}
		LK.showYouWin();
	}
};