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

/**** 
* Classes
****/ 
var MenuButton = Container.expand(function (text, difficulty, x, y) {
	var self = Container.call(this);
	self.difficulty = difficulty;
	// Create button background with difficulty-specific asset
	var buttonAsset = 'button_' + difficulty;
	var buttonBg = self.attachAsset(buttonAsset, {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 2,
		scaleY: 1.5
	});
	// Create button text
	var buttonText = new Text2(text, {
		size: 60,
		fill: 0x000000,
		stroke: 0x000000,
		strokeThickness: 2
	});
	buttonText.anchor.set(0.5, 0.5);
	self.addChild(buttonText);
	// Position button
	self.x = x;
	self.y = y;
	// Button press handler
	self.down = function (x, y, obj) {
		// Visual feedback
		tween(self, {
			scaleX: 0.95,
			scaleY: 0.95
		}, {
			duration: 100,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(self, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 100,
					easing: tween.easeOut
				});
			}
		});
		// Start game with selected difficulty
		startGameWithDifficulty(self.difficulty);
	};
	return self;
});
var Mineral = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type;
	self.mineralData = mineralTypes[type];
	var mineralGraphics = self.attachAsset(type, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initialize properties
	self.timeLeft = self.mineralData.duration;
	self.maxTime = self.mineralData.duration;
	self.isCollected = false;
	self.hasLostLife = false;
	// Add sparkle effect for rare minerals
	if (self.mineralData.rarity >= 3) {
		tween(mineralGraphics, {
			alpha: 0.7
		}, {
			duration: 500,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(mineralGraphics, {
					alpha: 1
				}, {
					duration: 500,
					easing: tween.easeInOut
				});
			}
		});
	}
	self.update = function () {
		if (self.isCollected) {
			return;
		}
		self.timeLeft -= 16.67; // Roughly 60 FPS
		// Flash when time is running out
		if (self.timeLeft < 1000) {
			var flashAlpha = Math.sin(LK.ticks * 0.5) * 0.3 + 0.7;
			mineralGraphics.alpha = flashAlpha;
		}
		// Remove when time expires
		if (self.timeLeft <= 0) {
			self.expire();
		}
	};
	self.collect = function () {
		if (self.isCollected) {
			return;
		}
		self.isCollected = true;
		// Add score
		var points = self.mineralData.points * scoreMultiplier;
		LK.setScore(LK.getScore() + points);
		// Increase multiplier
		scoreMultiplier = Math.min(scoreMultiplier + 0.1, 5);
		consecutiveCollections++;
		// Play sound
		LK.getSound('mine').play();
		// Animation
		tween(mineralGraphics, {
			scaleX: 1.5,
			scaleY: 1.5,
			alpha: 0
		}, {
			duration: 300,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
		// Remove from minerals array
		for (var i = minerals.length - 1; i >= 0; i--) {
			if (minerals[i] === self) {
				minerals.splice(i, 1);
				break;
			}
		}
		// Update UI
		updateScoreDisplay();
	};
	self.expire = function () {
		// Only lose life if we haven't already lost one for this mineral
		if (!self.hasLostLife) {
			// Reset multiplier on missed mineral
			scoreMultiplier = 1;
			consecutiveCollections = 0;
			// Lose a life
			currentLives--;
			self.hasLostLife = true;
			updateScoreDisplay();
			// Check game over
			if (currentLives <= 0) {
				LK.showGameOver();
				return;
			}
		}
		// Fade out animation
		tween(mineralGraphics, {
			alpha: 0,
			scaleX: 0.5,
			scaleY: 0.5
		}, {
			duration: 200,
			onFinish: function onFinish() {
				self.destroy();
			}
		});
		// Remove from minerals array
		for (var i = minerals.length - 1; i >= 0; i--) {
			if (minerals[i] === self) {
				minerals.splice(i, 1);
				break;
			}
		}
	};
	self.down = function (x, y, obj) {
		self.collect();
	};
	return self;
});
var Pickaxe = Container.expand(function () {
	var self = Container.call(this);
	var pickaxeGraphics = self.attachAsset('pickaxe', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Initialize position
	self.targetX = 1024;
	self.targetY = 1366;
	self.x = self.targetX;
	self.y = self.targetY;
	// Smooth following properties
	self.followSpeed = 0.15;
	// Air particles array
	self.airParticles = [];
	self.isActive = false;
	self.update = function () {
		// Smooth movement towards target position
		var dx = self.targetX - self.x;
		var dy = self.targetY - self.y;
		self.x += dx * self.followSpeed;
		self.y += dy * self.followSpeed;
		// Add subtle swaying animation
		var sway = Math.sin(LK.ticks * 0.05) * 2;
		pickaxeGraphics.rotation = sway * 0.1;
		// Continuous air particle creation when active
		if (self.isActive) {
			// Create air particles every 5 frames (about 12 times per second)
			if (LK.ticks % 5 === 0) {
				self.createAirParticles();
			}
		}
		// Check air particle collisions with minerals
		for (var p = self.airParticles.length - 1; p >= 0; p--) {
			var particle = self.airParticles[p];
			if (!particle.parent) continue; // Skip destroyed particles
			// Check collision with all minerals
			for (var m = minerals.length - 1; m >= 0; m--) {
				var mineral = minerals[m];
				if (mineral.isCollected) continue; // Skip already collected minerals
				// Calculate distance between particle and mineral
				var dx = particle.x - mineral.x;
				var dy = particle.y - mineral.y;
				var distance = Math.sqrt(dx * dx + dy * dy);
				// Check if particle intersects with mineral (using mineral's asset size)
				var mineralRadius = 75; // Approximate radius for mineral collision
				var particleRadius = 10; // Air particle radius
				if (distance < mineralRadius + particleRadius) {
					// Destroy the mineral
					mineral.collect();
					// Optionally destroy the particle that hit the mineral
					particle.destroy();
					self.airParticles.splice(p, 1);
					break; // Exit mineral loop since particle is destroyed
				}
			}
		}
	};
	self.setTarget = function (x, y) {
		self.targetX = x;
		self.targetY = y;
		// Add a little shake effect when moving to new position
		tween(pickaxeGraphics, {
			scaleX: 1.1,
			scaleY: 1.1
		}, {
			duration: 100,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				tween(pickaxeGraphics, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 100,
					easing: tween.easeOut
				});
			}
		});
	};
	self.activate = function () {
		self.isActive = true;
	};
	self.deactivate = function () {
		self.isActive = false;
	};
	self.createAirParticles = function () {
		// Calculate left tip position of the pickaxe image
		// The pickaxe image has its anchor at center (0.5, 0.5)
		// Left tip would be at the leftmost edge of the image
		var tipOffsetX = -100; // Left side of the pickaxe (negative X from center)
		var tipOffsetY = -80; // Slightly up from center to match the actual tip position
		var tipX = self.x + tipOffsetX;
		var tipY = self.y + tipOffsetY;
		// Create multiple air particles for a powerful blast effect
		for (var i = 0; i < 20; i++) {
			// Create air particle
			var airParticle = LK.getAsset('air_particle', {
				anchorX: 0.5,
				anchorY: 0.5
			});
			airParticle.x = tipX;
			airParticle.y = tipY;
			// Create a cone-shaped blast pattern pointing left
			var baseAngle = Math.PI; // Point left (180 degrees)
			var coneSpread = Math.PI * 0.8; // 144 degree cone spread
			var randomAngle = baseAngle + (Math.random() - 0.5) * coneSpread;
			// Much higher speed for farther travel
			var speed = 400 + Math.random() * 600; // 400-1000 pixel range
			var targetX = tipX + Math.cos(randomAngle) * speed;
			var targetY = tipY + Math.sin(randomAngle) * speed;
			// Add some random starting scale variation
			airParticle.scaleX = 0.8 + Math.random() * 0.4;
			airParticle.scaleY = 0.8 + Math.random() * 0.4;
			game.addChild(airParticle);
			self.airParticles.push(airParticle);
			// Animate particle movement with longer duration for farther travel
			tween(airParticle, {
				x: targetX,
				y: targetY,
				alpha: 0,
				scaleX: 0.1,
				scaleY: 0.1
			}, {
				duration: 1800 + Math.random() * 400,
				// 1.8-2.2 seconds for long travel
				easing: tween.easeOut,
				onFinish: function onFinish() {
					if (airParticle.parent) {
						airParticle.destroy();
					}
					// Remove from airParticles array
					for (var j = self.airParticles.length - 1; j >= 0; j--) {
						if (self.airParticles[j] === airParticle) {
							self.airParticles.splice(j, 1);
							break;
						}
					}
				}
			});
		}
	};
	return self;
});

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

/**** 
* Game Code
****/ 
// Add mining background
var backgroundImage = game.attachAsset('mining_background', {
	x: 0,
	y: 0,
	anchorX: 0,
	anchorY: 0
});
// Game state
var gameState = 'menu'; // 'menu' or 'playing'
var currentDifficulty = 'normal';
// Game variables
var minerals = [];
var scoreMultiplier = 1;
var consecutiveCollections = 0;
var gameTime = 0;
var targetScore = 10000;
var currentLives = 3;
var maxLives = 3;
var lifeRegenTimer = 0;
var lifeRegenInterval = 30000; // 30 seconds
var spawnRateIncrease = 1; // Track spawn rate multiplier for endless mode
// Pickaxe
var pickaxe = new Pickaxe();
game.addChild(pickaxe);
// Menu elements
var menuContainer;
var titleText;
var menuButtons = [];
// Difficulty configurations
var difficultySettings = {
	easy: {
		name: 'Easy',
		targetScore: 8000,
		pointMultiplier: 1,
		spawnRateMultiplier: 1.5,
		durationMultiplier: 1.5,
		lives: 5
	},
	normal: {
		name: 'Normal',
		targetScore: 15000,
		pointMultiplier: 1,
		spawnRateMultiplier: 1,
		durationMultiplier: 1,
		lives: 3
	},
	hard: {
		name: 'Hard',
		targetScore: 30000,
		pointMultiplier: 1,
		spawnRateMultiplier: 0.7,
		durationMultiplier: 0.8,
		lives: 2
	},
	endless: {
		name: 'Endless',
		targetScore: -1,
		// No target score for endless
		pointMultiplier: 1,
		spawnRateMultiplier: 0.85,
		durationMultiplier: 0.9,
		lives: 5
	}
};
// Base mineral type definitions (will be modified by difficulty)
var baseMineralTypes = {
	coal: {
		points: 10,
		duration: 5000,
		spawnRate: 2500,
		rarity: 1
	},
	copper: {
		points: 20,
		duration: 5000,
		spawnRate: 3000,
		rarity: 1
	},
	iron: {
		points: 50,
		duration: 4000,
		spawnRate: 6000,
		rarity: 2
	},
	silver: {
		points: 80,
		duration: 4000,
		spawnRate: 7000,
		rarity: 2
	},
	gold: {
		points: 200,
		duration: 3000,
		spawnRate: 12000,
		rarity: 3
	},
	emerald: {
		points: 300,
		duration: 3000,
		spawnRate: 15000,
		rarity: 3
	},
	diamond: {
		points: 800,
		duration: 2000,
		spawnRate: 25000,
		rarity: 4
	},
	ruby: {
		points: 1000,
		duration: 2000,
		spawnRate: 30000,
		rarity: 4
	}
};
// Current mineral types (adjusted for difficulty)
var mineralTypes = {};
var mineralTypeArray = Object.keys(mineralTypes);
// Spawn timers for each mineral type
var spawnTimers = {};
for (var i = 0; i < mineralTypeArray.length; i++) {
	var type = mineralTypeArray[i];
	spawnTimers[type] = 0;
}
// UI Elements
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF,
	stroke: 0x000000,
	strokeThickness: 3
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var multiplierTxt = new Text2('x1.0', {
	size: 60,
	fill: 0xFFFF00,
	stroke: 0x000000,
	strokeThickness: 2
});
multiplierTxt.anchor.set(1, 0);
multiplierTxt.x = -20;
multiplierTxt.y = 20;
LK.gui.topRight.addChild(multiplierTxt);
var targetTxt = new Text2('Target: ' + targetScore, {
	size: 50,
	fill: 0x00FF00,
	stroke: 0x000000,
	strokeThickness: 2
});
targetTxt.anchor.set(0, 0);
targetTxt.x = 120;
targetTxt.y = 20;
LK.gui.topLeft.addChild(targetTxt);
var livesTxt = new Text2('Lives: ' + currentLives, {
	size: 50,
	fill: 0xFF0000,
	stroke: 0x000000,
	strokeThickness: 2
});
livesTxt.anchor.set(0, 0);
livesTxt.x = 120;
livesTxt.y = 80;
LK.gui.topLeft.addChild(livesTxt);
function spawnMineral(type) {
	var mineral = new Mineral(type);
	// Restricted spawn area - X: 200-1700px, Y: 1400-2000px
	var leftBoundary = 200;
	var rightBoundary = 1700;
	var topBoundary = 1400;
	var bottomBoundary = 2000;
	mineral.x = leftBoundary + Math.random() * (rightBoundary - leftBoundary);
	mineral.y = topBoundary + Math.random() * (bottomBoundary - topBoundary);
	// Ensure it doesn't overlap with existing minerals too much and avoid UI areas
	var attempts = 0;
	while (attempts < 10) {
		var tooClose = false;
		var inUIArea = false;
		// Check if mineral overlaps with UI areas
		// Top-left pause button area (expanded to 200x200 for safety)
		if (mineral.x < 200 && mineral.y < 200) {
			inUIArea = true;
		}
		// Top score area (center top)
		if (mineral.x > 700 && mineral.x < 1348 && mineral.y < 150) {
			inUIArea = true;
		}
		// Top-right multiplier area (expanded)
		if (mineral.x > 1700 && mineral.y < 150) {
			inUIArea = true;
		}
		// Top-left counters area (target score and lives)
		if (mineral.x < 500 && mineral.y < 200) {
			inUIArea = true;
		}
		// Check distance from existing minerals
		for (var i = 0; i < minerals.length; i++) {
			var existingMineral = minerals[i];
			var dx = mineral.x - existingMineral.x;
			var dy = mineral.y - existingMineral.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance < 200) {
				tooClose = true;
				break;
			}
		}
		if (!tooClose && !inUIArea) {
			break;
		}
		mineral.x = leftBoundary + Math.random() * (rightBoundary - leftBoundary);
		mineral.y = topBoundary + Math.random() * (bottomBoundary - topBoundary);
		attempts++;
	}
	minerals.push(mineral);
	game.addChild(mineral);
	// Spawn animation
	mineral.scaleX = 0;
	mineral.scaleY = 0;
	tween(mineral, {
		scaleX: 1,
		scaleY: 1
	}, {
		duration: 300,
		easing: tween.easeOut
	});
}
function createMenu() {
	menuContainer = new Container();
	game.addChild(menuContainer);
	// Title
	titleText = new Text2('Crystal Rush Miner', {
		size: 120,
		fill: 0x00CCFF,
		stroke: 0x000000,
		strokeThickness: 4
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 600;
	menuContainer.addChild(titleText);
	// Subtitle
	var subtitleText = new Text2('Select Difficulty', {
		size: 80,
		fill: 0xFFFFFF,
		stroke: 0x000000,
		strokeThickness: 3
	});
	subtitleText.anchor.set(0.5, 0.5);
	subtitleText.x = 1024;
	subtitleText.y = 750;
	menuContainer.addChild(subtitleText);
	// Create difficulty buttons
	var buttonY = 1000;
	var buttonSpacing = 450;
	var easyBtn = new MenuButton('Easy\n8,000 pts', 'easy', 1024 - buttonSpacing * 1.5, buttonY);
	var normalBtn = new MenuButton('Normal\n15,000 pts', 'normal', 1024 - buttonSpacing * 0.5, buttonY);
	var hardBtn = new MenuButton('Hard\n30,000 pts', 'hard', 1024 + buttonSpacing * 0.5, buttonY);
	var endlessBtn = new MenuButton('Endless\nNo Limit', 'endless', 1024 + buttonSpacing * 1.5, buttonY);
	menuButtons.push(easyBtn, normalBtn, hardBtn, endlessBtn);
	menuContainer.addChild(easyBtn);
	menuContainer.addChild(normalBtn);
	menuContainer.addChild(hardBtn);
	menuContainer.addChild(endlessBtn);
	// Add instruction text below buttons
	var instructionText = new Text2('Tap the ores to mine them', {
		size: 60,
		fill: 0xFFFFFF,
		stroke: 0x000000,
		strokeThickness: 3
	});
	instructionText.anchor.set(0.5, 0.5);
	instructionText.x = 1024;
	instructionText.y = buttonY + 200;
	menuContainer.addChild(instructionText);
}
function startGameWithDifficulty(difficulty) {
	currentDifficulty = difficulty;
	gameState = 'playing';
	// Hide menu
	if (menuContainer) {
		menuContainer.visible = false;
	}
	// Apply difficulty settings
	var settings = difficultySettings[difficulty];
	targetScore = settings.targetScore;
	// Scale mineral types based on difficulty
	mineralTypes = {};
	var baseTypes = Object.keys(baseMineralTypes);
	for (var i = 0; i < baseTypes.length; i++) {
		var type = baseTypes[i];
		var base = baseMineralTypes[type];
		mineralTypes[type] = {
			points: Math.floor(base.points * settings.pointMultiplier),
			duration: Math.floor(base.duration * settings.durationMultiplier),
			spawnRate: Math.floor(base.spawnRate * settings.spawnRateMultiplier),
			rarity: base.rarity
		};
	}
	// Reset game variables
	minerals = [];
	scoreMultiplier = 1;
	consecutiveCollections = 0;
	gameTime = 0;
	currentLives = settings.lives;
	maxLives = settings.lives;
	lifeRegenTimer = 0;
	spawnRateIncrease = 1; // Reset spawn rate multiplier
	LK.setScore(0);
	// Initialize spawn timers
	mineralTypeArray = Object.keys(mineralTypes);
	spawnTimers = {};
	for (var i = 0; i < mineralTypeArray.length; i++) {
		var type = mineralTypeArray[i];
		spawnTimers[type] = 0;
	}
	// Update UI
	updateScoreDisplay();
	// Start background music
	LK.playMusic('mining_ambient');
}
function updateScoreDisplay() {
	scoreTxt.setText('Score: ' + LK.getScore());
	multiplierTxt.setText('x' + scoreMultiplier.toFixed(1));
	livesTxt.setText('Lives: ' + currentLives);
	// Update target display based on difficulty
	if (currentDifficulty === 'endless') {
		targetTxt.setText('Mode: Endless');
	} else {
		targetTxt.setText('Target: ' + targetScore);
	}
	// Check win condition (only for non-endless modes)
	if (currentDifficulty !== 'endless' && LK.getScore() >= targetScore) {
		LK.showYouWin();
	}
}
// Touch/Mouse movement handler
game.move = function (x, y, obj) {
	if (gameState === 'playing' && pickaxe) {
		pickaxe.setTarget(x, y);
	}
};
// Touch/Mouse down handler
game.down = function (x, y, obj) {
	if (gameState === 'playing' && pickaxe) {
		pickaxe.setTarget(x, y);
		pickaxe.activate();
	}
};
// Touch/Mouse up handler
game.up = function (x, y, obj) {
	if (gameState === 'playing' && pickaxe) {
		pickaxe.deactivate();
	}
};
// Initialize menu
createMenu();
game.update = function () {
	// Only update game logic when playing
	if (gameState !== 'playing') {
		return;
	}
	gameTime += 16.67; // Roughly 60 FPS
	// Update spawn timers and spawn minerals
	for (var i = 0; i < mineralTypeArray.length; i++) {
		var type = mineralTypeArray[i];
		var mineralData = mineralTypes[type];
		spawnTimers[type] += 16.67;
		// Apply spawn rate increase for endless mode
		var effectiveSpawnRate = mineralData.spawnRate;
		if (currentDifficulty === 'endless') {
			effectiveSpawnRate = mineralData.spawnRate / spawnRateIncrease;
		}
		if (spawnTimers[type] >= effectiveSpawnRate) {
			spawnTimers[type] = 0;
			spawnMineral(type);
		}
	}
	// Gradually decrease multiplier if no collections for a while
	if (consecutiveCollections === 0 && gameTime % 3000 < 16.67) {
		scoreMultiplier = Math.max(scoreMultiplier - 0.1, 1);
		updateScoreDisplay();
	}
	// Life regeneration for endless mode
	if (currentDifficulty === 'endless') {
		lifeRegenTimer += 16.67;
		if (lifeRegenTimer >= lifeRegenInterval && currentLives < maxLives) {
			currentLives++;
			lifeRegenTimer = 0;
			updateScoreDisplay();
			// Flash the lives text green to indicate regeneration
			tween(livesTxt, {
				tint: 0x00FF00
			}, {
				duration: 200,
				easing: tween.easeInOut,
				onFinish: function onFinish() {
					tween(livesTxt, {
						tint: 0xFFFFFF
					}, {
						duration: 200,
						easing: tween.easeInOut
					});
				}
			});
		}
		// Increase spawn rate over time in endless mode (every 30 seconds)
		if (gameTime % 30000 < 16.67) {
			spawnRateIncrease = Math.min(spawnRateIncrease + 0.1, 3); // Cap at 3x spawn rate
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -203,9 +203,8 @@
 		if (self.isActive) {
 			// Create air particles every 5 frames (about 12 times per second)
 			if (LK.ticks % 5 === 0) {
 				self.createAirParticles();
-				self.destroyNearbyMinerals();
 			}
 		}
 		// Check air particle collisions with minerals
 		for (var p = self.airParticles.length - 1; p >= 0; p--) {
@@ -315,26 +314,8 @@
 				}
 			});
 		}
 	};
-	self.destroyNearbyMinerals = function () {
-		// Calculate pickaxe tip position
-		var tipOffsetX = Math.sin(pickaxeGraphics.rotation) * 100;
-		var tipOffsetY = -Math.cos(pickaxeGraphics.rotation) * 100;
-		var tipX = self.x + tipOffsetX;
-		var tipY = self.y + tipOffsetY;
-		// Check all minerals for collision with air effect area
-		for (var i = minerals.length - 1; i >= 0; i--) {
-			var mineral = minerals[i];
-			var dx = mineral.x - tipX;
-			var dy = mineral.y - tipY;
-			var distance = Math.sqrt(dx * dx + dy * dy);
-			// If mineral is within air effect range (150px radius)
-			if (distance < 150) {
-				mineral.collect();
-			}
-		}
-	};
 	return self;
 });
 
 /****