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

/**** 
* Classes
****/ 
var Block = Container.expand(function () {
	var self = Container.call(this);
	var blockGraphics = self.attachAsset('block', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.speed = -8;
	self.update = function () {
		self.x += self.speed;
	};
	return self;
});
var Cursor = Container.expand(function () {
	var self = Container.call(this);
	var cursorGraphics = self.attachAsset('cursor', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.velocityY = 0;
	self.gravity = 0.8;
	self.jumpPower = -14;
	self.highJumpPower = -18; // Higher jump for longer press
	self.isOnGround = true;
	self.groundY = 2632; // Ground level - cursor height
	self.jump = function (isHighJump) {
		if (self.isOnGround) {
			if (isHighJump) {
				self.velocityY = self.highJumpPower;
			} else {
				self.velocityY = self.jumpPower;
			}
			self.isOnGround = false;
			LK.getSound('jump').play();
		}
	};
	self.update = function () {
		// Apply gravity
		self.velocityY += self.gravity;
		self.y += self.velocityY;
		// Check ground collision
		if (self.y >= self.groundY) {
			self.y = self.groundY;
			self.velocityY = 0;
			self.isOnGround = true;
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Difficulty levels - adjusted jump powers to clear blocks with small margin
var difficultyLevels = {
	LOW: {
		gameSpeed: 6,
		spawnInterval: 120,
		minSpawnInterval: 60,
		jumpPower: -15,
		highJumpPower: -20,
		gravity: 0.6,
		name: "LOW"
	},
	MEDIUM: {
		gameSpeed: 8,
		spawnInterval: 90,
		minSpawnInterval: 40,
		jumpPower: -14,
		highJumpPower: -18,
		gravity: 0.8,
		name: "MEDIUM"
	},
	HARD: {
		gameSpeed: 12,
		spawnInterval: 60,
		minSpawnInterval: 25,
		jumpPower: -13,
		highJumpPower: -17,
		gravity: 1.0,
		name: "HARD"
	},
	IMPOSSIBLE: {
		gameSpeed: 16,
		spawnInterval: 40,
		minSpawnInterval: 15,
		jumpPower: -12,
		highJumpPower: -16,
		gravity: 1.2,
		name: "IMPOSSIBLE"
	}
};
var currentDifficulty = difficultyLevels.MEDIUM;
var gameSpeed = currentDifficulty.gameSpeed;
var spawnTimer = 0;
var spawnInterval = currentDifficulty.spawnInterval;
var minSpawnInterval = currentDifficulty.minSpawnInterval;
var speedIncreaseTimer = 0;
var difficultyChangeTimer = 0;
var difficultyOrder = ['LOW', 'MEDIUM', 'HARD', 'IMPOSSIBLE'];
var currentDifficultyIndex = 1;
// Create ground
var ground = game.addChild(LK.getAsset('ground', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 2632
}));
// Create cursor
var cursor = game.addChild(new Cursor());
cursor.x = 300;
cursor.y = cursor.groundY;
// Apply difficulty settings to cursor with very fast jump
function applyDifficultyToCursor() {
	// Set very fast jump power - much faster than original
	cursor.jumpPower = -25; // Very fast jump power
	cursor.highJumpPower = -30; // Very fast high jump power
	cursor.gravity = currentDifficulty.gravity;
}
applyDifficultyToCursor();
// Arrays to track game objects
var blocks = [];
// Create score display
var scoreTxt = new Text2('0', {
	size: 100,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
// Create difficulty level display
var levelTxt = new Text2('LEVEL: MEDIUM', {
	size: 60,
	fill: 0xFFFF00
});
levelTxt.anchor.set(0.5, 0);
levelTxt.y = 120;
LK.gui.top.addChild(levelTxt);
// Create block counter display
var blockCountTxt = new Text2('BLOCKS: 0', {
	size: 60,
	fill: 0x00FF00
});
blockCountTxt.anchor.set(0.5, 0);
blockCountTxt.y = 200;
LK.gui.top.addChild(blockCountTxt);
// Block counter variable
var blocksCount = 0;
// Game variables
var distance = 0;
var tapStartTime = 0;
var isTapping = false;
var highJumpThreshold = 200; // ms for high jump
function spawnBlock() {
	var block = new Block();
	block.x = 2200; // Spawn off-screen right
	block.y = 2632; // On ground level
	blocks.push(block);
	game.addChild(block);
}
function updateDifficulty() {
	// Progress through difficulty levels every 10 seconds
	difficultyChangeTimer++;
	if (difficultyChangeTimer >= 600) {
		// 10 seconds at 60fps
		if (currentDifficultyIndex < difficultyOrder.length - 1) {
			currentDifficultyIndex++;
			currentDifficulty = difficultyLevels[difficultyOrder[currentDifficultyIndex]];
			// Update game parameters
			gameSpeed = currentDifficulty.gameSpeed;
			spawnInterval = currentDifficulty.spawnInterval;
			minSpawnInterval = currentDifficulty.minSpawnInterval;
			// Update cursor properties
			applyDifficultyToCursor();
			// Update level display
			levelTxt.setText('LEVEL: ' + currentDifficulty.name);
			// Flash screen to indicate level change
			LK.effects.flashScreen(0x00ff00, 300);
		}
		difficultyChangeTimer = 0;
	}
	// Fine-tune difficulty within current level
	speedIncreaseTimer++;
	if (speedIncreaseTimer >= 300) {
		// Every 5 seconds at 60fps
		gameSpeed += 0.3;
		if (spawnInterval > minSpawnInterval) {
			spawnInterval -= 1;
		}
		speedIncreaseTimer = 0;
	}
}
// Touch controls
game.down = function (x, y, obj) {
	tapStartTime = Date.now();
	isTapping = true;
	// Jump immediately on tap down
	cursor.jump(false); // Use normal jump power for instant response
};
game.up = function (x, y, obj) {
	if (isTapping) {
		isTapping = false;
	}
};
game.update = function () {
	// Update distance and score
	distance += gameSpeed;
	LK.setScore(Math.floor(distance / 10));
	scoreTxt.setText(LK.getScore());
	// Update difficulty
	updateDifficulty();
	// Spawn blocks
	spawnTimer++;
	if (spawnTimer >= spawnInterval) {
		spawnBlock();
		spawnTimer = 0;
	}
	// Update blocks and check collisions
	for (var i = blocks.length - 1; i >= 0; i--) {
		var block = blocks[i];
		block.speed = -gameSpeed;
		// Remove blocks that are off-screen
		if (block.x < -200) {
			// Increment block counter when block passes off-screen (successfully avoided)
			blocksCount++;
			blockCountTxt.setText('BLOCKS: ' + blocksCount);
			block.destroy();
			blocks.splice(i, 1);
			continue;
		}
		// Check collision with cursor
		if (cursor.intersects(block)) {
			LK.getSound('hit').play();
			LK.effects.flashScreen(0xff0000, 500);
			LK.showGameOver();
			return;
		}
	}
};