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

/**** 
* Classes
****/ 
/**** 
* Prestige and Background Helpers
****
// New prestige requirement: 1e9, 2e9, 4e9, etc.
function getPrestigeRequirement() {
	return 1e9 * Math.pow(2, gameState.prestigeCount);
}
function canPrestige() { 
	return gameState.money >= getPrestigeRequirement(); 
}
function calculatePrestigeShards() {
	// For now, simply give 1 shard per prestige.
	return 1;
}
function doPrestige() {
	// Clear clusters
	for (var i = clusters.length - 1; i >= 0; i--) {
		var c = clusters[i];
		c.removeChildren();
		if (c.parent) { c.parent.removeChild(c); }
		clusters.splice(i, 1);
	}
	var shards = calculatePrestigeShards();
	gameState.prestigeCurrency += shards;
	gameState.prestigeCount++;
	gameState.money = 0;
	gameState.currentTier = 1;
	for (var key in gameState.clusterCount) { gameState.clusterCount[key] = 0; }
	handleBackgroundTransition();
	initialSpawn();
	updateUI();
}
function handleBackgroundTransition() {
	if (nextBackground && nextBackground.parent) { nextBackground.parent.removeChild(nextBackground); }
	var newBg = null;
	if (gameState.prestigeCount >= 8) {
		newBg = LK.getAsset('background_tier8', { anchorX: 0.5, anchorY: 0.5 });
	} else if (gameState.prestigeCount >= 5) {
		newBg = LK.getAsset('background_tier5', { anchorX: 0.5, anchorY: 0.5 });
	} else if (gameState.prestigeCount >= 3) {
		newBg = LK.getAsset('background_tier3', { anchorX: 0.5, anchorY: 0.5 });
	} else {
		newBg = LK.getAsset('background', { anchorX: 0.5, anchorY: 0.5 });
	}
	newBg.x = 2048 / 2;
	newBg.y = 2732 + 2732 / 2;
	// Add new background at index 0 so all UI elements remain on top
	game.addChildAt(newBg, 0);
	nextBackground = newBg;
	var oldBg = currentBackground;
	if (!oldBg) {
		oldBg = LK.getAsset('background', { anchorX: 0.5, anchorY: 0.5 });
		oldBg.x = 2048 / 2;
		oldBg.y = 2732 / 2;
		game.addChildAt(oldBg, 0);
	}
	if (oldBg === newBg) { currentBackground = newBg; return; }
	var dur = 3000;
	tween(oldBg, { y: oldBg.y - 2732 }, {
		duration: dur,
		onFinish: function () { if (oldBg && oldBg.parent) { oldBg.parent.removeChild(oldBg); } }
	});
	tween(newBg, { y: 2732 / 2 }, {
		duration: dur,
		onFinish: function () { currentBackground = newBg; }
	});
}
/**** 
* CLASSES
****/ 
/** 
* Cluster – spawns multiple ore objects of a given type.
*/ 
var Cluster = Container.expand(function (type) {
	var self = Container.call(this);
	self.type = type;
	self.oreList = [];
	var centerX = 100 + Math.random() * (2048 - 200);
	var centerY = 100 + Math.random() * (2732 - 200);
	self.x = centerX;
	self.y = centerY;
	var cc = gameState.clusterConfig;
	var count = randomInt(cc.min, cc.max);
	for (var i = 0; i < count; i++) {
		var ore = new Ore(type, self);
		ore.x = (Math.random() - 0.5) * 120;
		ore.y = (Math.random() - 0.5) * 120;
		self.oreList.push(ore);
		self.addChild(ore);
	}
	self.notifyOreDestroyed = function (ore) {
		var idx = self.oreList.indexOf(ore);
		if (idx >= 0) {
			self.oreList.splice(idx, 1);
		}
		ore.destroy();
		if (self.oreList.length === 0) {
			if (self.parent) {
				self.parent.removeChild(self);
			}
			var cidx = clusters.indexOf(self);
			if (cidx >= 0) {
				clusters.splice(cidx, 1);
			}
			gameState.clusterCount[type]--;
			var finalDelay = gameState.respawnTime;
			if (type === 'coal') {
				finalDelay *= 2;
			}
			LK.setTimeout(function () {
				maybeSpawnCluster(type);
			}, finalDelay);
		}
	};
	return self;
});
/** 
* Drone – moves around and zaps nearby ores (with slight random deviations).
*/ 
var Drone = Container.expand(function () {
	var self = Container.call(this);
	self.droneSprite = LK.getAsset('drone_asset', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.addChild(self.droneSprite);
	var SPEED = 8,
		MIN_X = 50,
		MAX_X = 2000,
		MIN_Y = 50,
		MAX_Y = 2682;
	self.vx = Math.random() < 0.5 ? SPEED : -SPEED;
	self.vy = Math.random() < 0.5 ? SPEED : -SPEED;
	self.AOE_RANGE = 100;
	self.droneDamage = 2;
	self.COOLDOWN_MAX = 60;
	self.cooldown = 0;
	self.updateDrone = function () {
		self.x += self.vx;
		self.y += self.vy;
		if (self.x < MIN_X || self.x > MAX_X) {
			self.vx = -self.vx;
		}
		if (self.y < MIN_Y || self.y > MAX_Y) {
			self.vy = -self.vy;
		}
		if (Math.random() < 0.01) {
			self.vx += (Math.random() - 0.5) * 2;
			self.vy += (Math.random() - 0.5) * 2;
			var speed = Math.sqrt(self.vx * self.vx + self.vy * self.vy);
			if (speed > SPEED) {
				self.vx = self.vx / speed * SPEED;
				self.vy = self.vy / speed * SPEED;
			}
		}
		if (self.cooldown > 0) {
			self.cooldown--;
		} else {
			self.tryZap();
		}
	};
	self.tryZap = function () {
		var hitSomething = false;
		clusters.forEach(function (cluster) {
			cluster.oreList.forEach(function (ore) {
				if (ore.health > 0) {
					var oreGlobalX = cluster.x + ore.x;
					var oreGlobalY = cluster.y + ore.y;
					var dx = self.x - oreGlobalX,
						dy = self.y - oreGlobalY;
					var dist = Math.sqrt(dx * dx + dy * dy);
					if (dist < self.AOE_RANGE) {
						ore.health -= self.droneDamage;
						hitSomething = true;
						if (ore.health <= 0) {
							var baseValue = ore.getValue();
							gameState.money += baseValue;
							updateUI();
							ore.cluster.notifyOreDestroyed(ore);
							spawnMiningParticles(ore, 5);
						}
					}
				}
			});
		});
		if (hitSomething) {
			// Play drone shot sound once per zap
			LK.getSound('drone_shot').play();
			self.cooldown = self.COOLDOWN_MAX;
		}
	};
	return self;
});
/** 
* Miner – moves toward and mines the nearest ore.
* Includes Chronostone, Soul Ember, Quantum Shard, and the new Hyper Mining Mode.
*/ 
var Miner = Container.expand(function () {
	var self = Container.call(this);
	self.attachAsset('miner', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 5;
	self.currentTarget = null;
	self.miningRange = 25;
	self.miningCooldown = 0;
	self.miningRate = 30;
	self.miningDamage = 1;
	// Save originals for hyper mode
	self.originalMiningRate = self.miningRate;
	self.originalMiningDamage = self.miningDamage;
	// Chronostone boost
	self.speedBoostMultiplier = 1;
	self.speedBoostTimer = 0;
	// Soul Ember boost
	self.soulEmberStacks = 0;
	// Quantum Shard mode
	self.quantumPathActive = false;
	self.quantumPath = [];
	self.quantumShardValueBonus = false;
	// New Hyper Mining Mode
	self.hyperMiningActive = false;
	self.hyperMiningTimer = 0;
	self.activateHyperMining = function () {
		self.hyperMiningActive = true;
		self.hyperMiningTimer = 10 * 60;
		self.miningDamage *= 2;
		self.miningRate = Math.max(1, Math.floor(self.miningRate / 2));
	};
	self.findNewTarget = function () {
		if (self.quantumPathActive && self.quantumPath.length > 0) {
			self.currentTarget = self.quantumPath[0];
			if (!self.currentTarget || self.currentTarget.health <= 0) {
				self.quantumPath.shift();
				if (self.quantumPath.length === 0) {
					if (self.quantumShardValueBonus) {
						self.quantumShardValueBonus = false;
					}
					self.quantumPathActive = false;
					self.currentTarget = null;
				}
				return;
			}
			return;
		}
		var validOre = [];
		clusters.forEach(function (c) {
			c.oreList.forEach(function (ore) {
				if (ore.health > 0 && ore.tier <= gameState.currentTier) {
					validOre.push(ore);
				}
			});
		});
		if (validOre.length === 0) {
			self.currentTarget = null;
			return;
		}
		self.currentTarget = validOre.sort(function (a, b) {
			var aX = a.parent.x + a.x,
				aY = a.parent.y + a.y;
			var bX = b.parent.x + b.x,
				bY = b.parent.y + b.y;
			return Math.hypot(aX - self.x, aY - self.y) - Math.hypot(bX - self.x, bY - self.y);
		})[0];
	};
	self.update = function () {
		if (self.hyperMiningActive) {
			self.hyperMiningTimer--;
			if (self.hyperMiningTimer <= 0) {
				self.miningDamage = self.originalMiningDamage;
				self.miningRate = self.originalMiningRate;
				self.hyperMiningActive = false;
			}
		}
		if (self.speedBoostTimer > 0) {
			self.speedBoostTimer--;
			if (self.speedBoostTimer <= 0) {
				self.speedBoostMultiplier = 1;
			}
		}
		self.findNewTarget();
		if (self.currentTarget) {
			var tx = self.currentTarget.parent.x + self.currentTarget.x;
			var ty = self.currentTarget.parent.y + self.currentTarget.y;
			var dx = tx - self.x,
				dy = ty - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			var finalSpeed = self.speed * self.speedBoostMultiplier;
			if (dist > self.miningRange) {
				self.x += dx / dist * finalSpeed;
				self.y += dy / dist * finalSpeed;
			} else {
				self.mineOre(self.currentTarget);
			}
		} else {
			if (typeof LK.time !== 'undefined') {
				self.y += Math.sin(LK.time.elapsed / 250) * 0.5;
			}
		}
	};
	self.mineOre = function (ore) {
		if (self.miningCooldown > 0) {
			self.miningCooldown--;
			return;
		}
		if (self.quantumPathActive && self.quantumPath.length > 0 && self.quantumPath[0] === ore) {
			self.quantumPath.shift();
			if (self.quantumPath.length === 0) {
				self.quantumPathActive = false;
			}
		}
		var damageDealt = self.miningDamage * gameState.pickaxeLevel * (gameState.pickaxeBaseMultiplier || 1);
		ore.health -= damageDealt;
		self.miningCooldown = self.miningRate;
		// Play mining sound for this ore type
		var mineSound = LK.getSound('mine_' + ore.type);
		if (mineSound) {
			mineSound.play();
		}
		if (ore.health <= 0) {
			var baseValue = ore.getValue();
			var finalValue = baseValue;
			if (self.soulEmberStacks > 0) {
				finalValue *= 5;
				self.soulEmberStacks--;
			}
			if (self.quantumShardValueBonus) {
				finalValue *= 1.5;
			}
			gameState.money += finalValue;
			updateUI();
			ore.cluster.notifyOreDestroyed(ore);
			spawnMiningParticles(ore, 5);
			// Play ore-destroy sound
			var destroySound = LK.getSound('ore_destroy_' + ore.type);
			if (destroySound) {
				destroySound.play();
			}
			if (ore.type === "explosive" && ore.explode) {
				ore.explode();
			}
		} else {
			spawnMiningParticles(ore, 2);
		}
	};
	// Boost functions
	self.applyChronostoneBoost = function () {
		self.speedBoostMultiplier *= 3;
		self.speedBoostTimer = 30 * 60;
	};
	self.applySoulEmberBoost = function () {
		if (gameState.money >= 1e6) {
			var drain = gameState.money * 0.10;
			gameState.money -= drain;
			self.soulEmberStacks = 10;
			updateUI();
		}
	};
	self.triggerQuantumShardMode = function () {
		self.quantumShardValueBonus = true;
		self.quantumPathActive = true;
		self.quantumPath = [];
		game.pauseForQuantumSelection();
	};
	return self;
});
/** 
* Ore – represents a single ore.
* Includes a health bar, pulsing glow for special ores, and explosive behavior.
*/ 
var Ore = Container.expand(function (type, cluster) {
	var self = Container.call(this);
	self.type = type;
	self.cluster = cluster;
	var typeList = ['coal', 'iron', 'gold', 'diamond', 'sapphire', 'emerald', 'ruby'];
	if (typeList.indexOf(type) >= 0) {
		self.tier = typeList.indexOf(type) + 1;
	} else {
		self.tier = 999;
	}
	self.baseValue = oreData[type].baseValue;
	self.maxHealth = oreData[type].baseHealth;
	self.health = self.maxHealth;
	self.attachAsset(oreData[type].assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.healthBar = LK.getAsset('rectangle', {
		width: 120,
		height: 20,
		fill: 0x00FF00,
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.healthBar.x = 0;
	self.healthBar.y = -70;
	self.addChild(self.healthBar);
	if (["chronostone", "soulember", "quantumshard"].indexOf(type) >= 0) {
		var _pulseGlow = function pulseGlow() {
			tween(glow, {
				alpha: 1
			}, {
				duration: 1000,
				onFinish: function onFinish() {
					tween(glow, {
						alpha: 0.5
					}, {
						duration: 1000,
						onFinish: _pulseGlow
					});
				}
			});
		};
		var glow = LK.getAsset('glowing_line_asset', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		glow.alpha = 0.5;
		self.addChildAt(glow, 0);
		_pulseGlow();
	}
	if (type === "explosive") {
		self.explode = function () {
			var explosionRadius = 100;
			clusters.forEach(function (cluster) {
				cluster.oreList.forEach(function (otherOre) {
					if (otherOre !== self && otherOre.health > 0) {
						var oreGlobalX = cluster.x + otherOre.x;
						var oreGlobalY = cluster.y + otherOre.y;
						var dx = self.parent.x + self.x - oreGlobalX;
						var dy = self.parent.y + self.y - oreGlobalY;
						var dist = Math.sqrt(dx * dx + dy * dy);
						if (dist < explosionRadius) {
							otherOre.health -= 50;
							if (otherOre.health <= 0) {
								var baseValue = otherOre.getValue();
								gameState.money += baseValue;
								updateUI();
								otherOre.cluster.notifyOreDestroyed(otherOre);
								spawnMiningParticles(otherOre, 5);
							} else {
								spawnMiningParticles(otherOre, 2);
							}
						}
					}
				});
			});
			screenShake(500, 10);
		};
	}
	self.getValue = function () {
		return self.baseValue * gameState.oreMultipliers[self.type];
	};
	return self;
});

/**** 
* Initialize Game
****/ 
/**** 
* GAME INITIALIZATION AND HELPER FUNCTIONS
****/ 
var game = new LK.Game({
	backgroundColor: 0x1a1a1a
});

/**** 
* Game Code
****/ 
// Returns a random integer between min and max (inclusive)
/**** 
* HELPER FUNCTIONS
****/ 
/**** 
* PLUGINS
****/ 
/**** 
* SOUND INITIALIZATION
****/ 
// Shapes and Images
/**** 
* ASSETS
****/ 
function randomInt(min, max) {
	return Math.floor(Math.random() * (max - min + 1)) + min;
}
// Enhanced mining particles – tint special ores if needed
function spawnMiningParticles(ore, num) {
	for (var i = 0; i < num; i++) {
		var p = LK.getAsset('mining_particle', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		if (ore.parent) {
			p.x = ore.parent.x + ore.x;
			p.y = ore.parent.y + ore.y;
		} else {
			p.x = ore.x;
			p.y = ore.y;
		}
		if (["chronostone", "soulember", "quantumshard"].indexOf(ore.type) >= 0) {
			p.tint = oreData[ore.type].color || 0xffffff;
		}
		p.vx = (Math.random() - 0.5) * 10;
		p.vy = (Math.random() - 0.5) * 10;
		p.alpha = 1;
		tween(p, {
			alpha: 0,
			y: p.y - 50
		}, {
			duration: 1000,
			onFinish: function onFinish() {
				p.destroy();
			}
		});
		game.addChild(p);
	}
}
// Interpolates between two colors (used for health bars)
function interpolateColor(c1, c2, f) {
	var r1 = c1 >> 16 & 0xFF,
		g1 = c1 >> 8 & 0xFF,
		b1 = c1 & 0xFF;
	var r2 = c2 >> 16 & 0xFF,
		g2 = c2 >> 8 & 0xFF,
		b2 = c2 & 0xFF;
	var r = Math.round(r1 + f * (r2 - r1));
	var g = Math.round(g1 + f * (g2 - g1));
	var b = Math.round(b1 + f * (b2 - b1));
	return r << 16 | g << 8 | b;
}
// Simple screen shake for explosions
function screenShake(duration, magnitude) {
	var originalX = game.x,
		originalY = game.y;
	var shakeInterval = 50;
	var elapsed = 0;
	var shake = setInterval(function () {
		elapsed += shakeInterval;
		game.x = originalX + (Math.random() - 0.5) * magnitude;
		game.y = originalY + (Math.random() - 0.5) * magnitude;
		if (elapsed >= duration) {
			clearInterval(shake);
			game.x = originalX;
			game.y = originalY;
		}
	}, shakeInterval);
}
/**** 
* ACHIEVEMENT SYSTEM
****/ 
var achievements = [{
	id: 'first_mine',
	name: 'First Mine',
	description: 'Mine your first ore',
	achieved: false,
	condition: function condition() {
		return gameState.money > 0;
	}
}, {
	id: 'rich_miner',
	name: 'Rich Miner',
	description: 'Earn 1 Billion money',
	achieved: false,
	condition: function condition() {
		return gameState.money >= 1e9;
	}
}];
/**** 
* ORE DATA
****/ 
var oreData = {
	coal: {
		baseValue: 5,
		baseHealth: 10,
		assetId: 'coal_ore'
	},
	iron: {
		baseValue: 500,
		baseHealth: 100,
		assetId: 'iron_ore'
	},
	gold: {
		baseValue: 10000,
		baseHealth: 500,
		assetId: 'gold_ore'
	},
	diamond: {
		baseValue: 25000,
		baseHealth: 1000,
		assetId: 'diamond_ore'
	},
	sapphire: {
		baseValue: 100000,
		baseHealth: 2000,
		assetId: 'sapphire_ore'
	},
	emerald: {
		baseValue: 500000,
		baseHealth: 5000,
		assetId: 'emerald_ore'
	},
	ruby: {
		baseValue: 1000000,
		baseHealth: 10000,
		assetId: 'ruby_ore'
	},
	chronostone: {
		baseValue: 2000000,
		baseHealth: 2000,
		assetId: 'chronostone_ore',
		color: 0xc997d8
	},
	soulember: {
		baseValue: 5000000,
		baseHealth: 5000,
		assetId: 'soulember_ore',
		color: 0xdef3e5
	},
	quantumshard: {
		baseValue: 10000000,
		baseHealth: 10000,
		assetId: 'quantumshard_ore',
		color: 0xa1bb12
	}
};
/**** 
* GAME STATE
****/ 
var gameState = {
	money: 0,
	pickaxeLevel: 1,
	pickaxeBaseMultiplier: 1,
	droneLevel: 0,
	currentTier: 1,
	oreMultipliers: {
		coal: 1,
		iron: 1,
		gold: 1,
		diamond: 1,
		sapphire: 1,
		emerald: 1,
		ruby: 1,
		chronostone: 1,
		soulember: 1,
		quantumshard: 1
	},
	respawnTime: 3000,
	maxClustersPerType: 3,
	clusterCount: {
		coal: 0,
		iron: 0,
		gold: 0,
		diamond: 0,
		sapphire: 0,
		emerald: 0,
		ruby: 0,
		chronostone: 0,
		soulember: 0,
		quantumshard: 0
	},
	clusterConfigLevels: [{
		min: 2,
		max: 3
	}, {
		min: 2,
		max: 4
	}, {
		min: 3,
		max: 5
	}, {
		min: 5,
		max: 10
	}],
	clusterUpgradeTier: 0,
	get clusterConfig() {
		return this.clusterConfigLevels[this.clusterUpgradeTier] || {
			min: 2,
			max: 3
		};
	},
	// Prestige (with new requirements)
	prestigeCount: 0,
	prestigeCurrency: 0
};
var clusters = [];
var currentBackground = null;
var nextBackground = null;
var miner = null;
var droneObjects = [];
var droneSprites = [];
// Initial spawn of clusters
function initialSpawn() {
	var allTypes = ['coal', 'iron', 'gold', 'diamond', 'sapphire', 'emerald', 'ruby'];
	allTypes.forEach(function (type, idx) {
		var t = idx + 1;
		if (t <= gameState.currentTier) {
			for (var i = 0; i < gameState.maxClustersPerType; i++) {
				maybeSpawnCluster(type);
			}
		}
	});
	maybeSpawnSpecialOres();
}
// Create drones up to droneLevel
function updateDroneObjects() {
	while (droneObjects.length < gameState.droneLevel) {
		var d = new Drone();
		d.x = 200 + Math.random() * (2048 - 400);
		d.y = 200 + Math.random() * (2732 - 400);
		droneObjects.push(d);
		game.addChild(d);
	}
}
function updateDroneSprites() {
	while (droneSprites.length < gameState.droneLevel) {
		var drone = LK.getAsset('drone_asset', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		drone.x = 100 + droneSprites.length * 90;
		drone.y = 200;
		droneSprites.push(drone);
		game.addChild(drone);
	}
}
// Spawn a cluster of a given ore type
function maybeSpawnCluster(type) {
	var typeList = ['coal', 'iron', 'gold', 'diamond', 'sapphire', 'emerald', 'ruby'];
	if (typeList.indexOf(type) >= 0) {
		var tIndex = typeList.indexOf(type) + 1;
		if (tIndex > gameState.currentTier) {
			return;
		}
	}
	if (gameState.clusterCount[type] >= gameState.maxClustersPerType) {
		return;
	}
	var cluster = new Cluster(type);
	game.addChild(cluster);
	clusters.push(cluster);
	gameState.clusterCount[type]++;
}
// Attempt to spawn special ores based on prestige level
function maybeSpawnSpecialOres() {
	var spawnChances = [];
	if (gameState.prestigeCount >= 3) {
		spawnChances.push({
			type: 'chronostone',
			min: 3,
			max: 5
		});
	}
	if (gameState.prestigeCount >= 5) {
		spawnChances.push({
			type: 'soulember',
			min: 1.5,
			max: 2.5
		});
	}
	if (gameState.prestigeCount >= 8) {
		spawnChances.push({
			type: 'quantumshard',
			min: 0.8,
			max: 1.2
		});
	}
	if (spawnChances.length === 0) {
		return;
	}
	var standardTypes = ['coal', 'iron', 'gold', 'diamond', 'sapphire', 'emerald', 'ruby'];
	standardTypes.forEach(function (type) {
		if (gameState.clusterCount[type] < gameState.maxClustersPerType) {
			for (var i = 0; i < spawnChances.length; i++) {
				var chanceObj = spawnChances[i];
				var chance = randomInt(chanceObj.min * 10, chanceObj.max * 10) / 10;
				var roll = Math.random() * 100;
				if (roll < chance) {
					if (gameState.clusterCount[chanceObj.type] < gameState.maxClustersPerType) {
						maybeSpawnCluster(chanceObj.type);
					}
				}
			}
		}
	});
}
/**** 
* Drone DPS Functions
****/ 
function getDroneDPS() {
	return 10 * gameState.droneLevel;
}
function droneDamageTick() {
	var dps = getDroneDPS();
	if (dps <= 0) {
		return;
	}
	var allValidOres = [];
	clusters.forEach(function (c) {
		c.oreList.forEach(function (ore) {
			if (ore.health > 0 && ore.tier <= gameState.currentTier) {
				allValidOres.push(ore);
			}
		});
	});
	if (allValidOres.length === 0) {
		return;
	}
	var damageRemaining = dps;
	while (damageRemaining > 0 && allValidOres.length > 0) {
		var randomIndex = Math.floor(Math.random() * allValidOres.length);
		var ore = allValidOres[randomIndex];
		var chunk = Math.min(damageRemaining, 10);
		ore.health -= chunk;
		damageRemaining -= chunk;
		if (ore.health <= 0) {
			var baseValue = ore.getValue();
			gameState.money += baseValue;
			updateUI();
			ore.cluster.notifyOreDestroyed(ore);
			spawnMiningParticles(ore, 5);
			allValidOres.splice(randomIndex, 1);
		}
	}
}
/**** 
* UPGRADE DATA
****/ 
var oreUpgrades = {
	coal: [{
		id: 'double_coal',
		name: 'Double Coal Value',
		cost: 100,
		multi: true,
		level: 0,
		effect: 'Doubles Coal Value each purchase',
		action: function action() {
			this.level++;
			gameState.oreMultipliers.coal *= 2;
			this.cost *= 2;
		}
	}],
	iron: [{
		id: 'unlock_iron',
		name: 'Unlock Iron Mining',
		cost: 500,
		effect: 'Allows iron ore clusters to spawn',
		purchased: false,
		action: function action() {
			if (gameState.currentTier < 2) {
				gameState.currentTier = 2;
			}
			for (var i = 0; i < gameState.maxClustersPerType; i++) {
				maybeSpawnCluster('iron');
			}
		}
	}, {
		id: 'double_iron',
		name: 'Double Iron Value',
		cost: 1000,
		multi: true,
		level: 0,
		effect: 'Doubles Iron Value each purchase',
		action: function action() {
			this.level++;
			gameState.oreMultipliers.iron *= 2;
			this.cost *= 2;
		}
	}],
	gold: [{
		id: 'unlock_gold',
		name: 'Unlock Gold Mining',
		cost: 5000,
		effect: 'Allows gold ore clusters to spawn',
		purchased: false,
		action: function action() {
			if (gameState.currentTier < 3) {
				gameState.currentTier = 3;
			}
			for (var i = 0; i < gameState.maxClustersPerType; i++) {
				maybeSpawnCluster('gold');
			}
		}
	}, {
		id: 'double_gold',
		name: 'Double Gold Value',
		cost: 20000,
		multi: true,
		level: 0,
		effect: 'Doubles Gold Value each purchase',
		action: function action() {
			this.level++;
			gameState.oreMultipliers.gold *= 2;
			this.cost *= 2;
		}
	}],
	diamond: [{
		id: 'unlock_diamond',
		name: 'Unlock Diamond Mining',
		cost: 20000,
		effect: 'Allows diamond ore clusters to spawn',
		purchased: false,
		action: function action() {
			if (gameState.currentTier < 4) {
				gameState.currentTier = 4;
			}
			for (var i = 0; i < gameState.maxClustersPerType; i++) {
				maybeSpawnCluster('diamond');
			}
		}
	}, {
		id: 'double_diamond',
		name: 'Double Diamond Value',
		cost: 50000,
		multi: true,
		level: 0,
		effect: 'Doubles Diamond Value each purchase',
		action: function action() {
			this.level++;
			gameState.oreMultipliers.diamond *= 2;
			this.cost *= 2;
		}
	}],
	sapphire: [{
		id: 'unlock_sapphire',
		name: 'Unlock Sapphire Mining',
		cost: 100000,
		effect: 'Allows sapphire ore clusters to spawn',
		purchased: false,
		action: function action() {
			if (gameState.currentTier < 5) {
				gameState.currentTier = 5;
			}
			for (var i = 0; i < gameState.maxClustersPerType; i++) {
				maybeSpawnCluster('sapphire');
			}
		}
	}, {
		id: 'double_sapphire',
		name: 'Double Sapphire Value',
		cost: 200000,
		multi: true,
		level: 0,
		effect: 'Doubles Sapphire Value each purchase',
		action: function action() {
			this.level++;
			gameState.oreMultipliers.sapphire *= 2;
			this.cost *= 2;
		}
	}],
	emerald: [{
		id: 'unlock_emerald',
		name: 'Unlock Emerald Mining',
		cost: 500000,
		effect: 'Allows emerald ore clusters to spawn',
		purchased: false,
		action: function action() {
			if (gameState.currentTier < 6) {
				gameState.currentTier = 6;
			}
			for (var i = 0; i < gameState.maxClustersPerType; i++) {
				maybeSpawnCluster('emerald');
			}
		}
	}, {
		id: 'double_emerald',
		name: 'Double Emerald Value',
		cost: 1000000,
		multi: true,
		level: 0,
		effect: 'Doubles Emerald Value each purchase',
		action: function action() {
			this.level++;
			gameState.oreMultipliers.emerald *= 2;
			this.cost *= 2;
		}
	}],
	ruby: [{
		id: 'unlock_ruby',
		name: 'Unlock Ruby Mining',
		cost: 1000000,
		effect: 'Allows ruby ore clusters to spawn',
		purchased: false,
		action: function action() {
			if (gameState.currentTier < 7) {
				gameState.currentTier = 7;
			}
			for (var i = 0; i < gameState.maxClustersPerType; i++) {
				maybeSpawnCluster('ruby');
			}
		}
	}, {
		id: 'double_ruby',
		name: 'Double Ruby Value',
		cost: 2000000,
		multi: true,
		level: 0,
		effect: 'Doubles Ruby Value each purchase',
		action: function action() {
			this.level++;
			gameState.oreMultipliers.ruby *= 2;
			this.cost *= 2;
		}
	}]
};
var generalUpgrades = [{
	id: 'faster_respawn',
	name: 'Quicker Respawn',
	cost: 8000,
	effect: 'Halves respawn time (min 500 ms)',
	purchased: false,
	action: function action() {
		gameState.respawnTime = Math.max(500, gameState.respawnTime / 2);
	}
}, {
	id: 'cluster_up',
	name: 'Cluster Growth',
	cost: 1000,
	effect: 'Increases cluster size range',
	purchased: false,
	action: function action() {
		if (gameState.clusterUpgradeTier < gameState.clusterConfigLevels.length - 1) {
			gameState.clusterUpgradeTier++;
		}
		this.cost += 2000;
	}
}, {
	id: 'pickaxe_buff',
	name: 'Pickaxe DMG +20%',
	cost: 20000,
	effect: 'Increases your total pickaxe damage by 20%',
	purchased: false,
	multi: true,
	level: 0,
	action: function action() {
		this.level++;
		gameState.pickaxeBaseMultiplier *= 1.2;
		this.cost = Math.floor(this.cost * 2);
	}
}];
// Prestige shop upgrades (lower costs and some new high‐value rewards)
var prestigeUpgrades = [{
	id: 'pickaxe_plus_1',
	name: 'Pickaxe Level +1',
	cost: 3,
	effect: 'Increases pickaxe damage by 1',
	purchased: false,
	action: function action() {
		gameState.pickaxeLevel++;
	}
}, {
	id: 'pickaxe_plus_2',
	name: 'Pickaxe Speed +10%',
	cost: 4,
	effect: 'Reduces mining cooldown by 10%',
	purchased: false,
	action: function action() {
		miner.miningRate = Math.floor(miner.miningRate * 0.90);
		if (miner.miningRate < 1) {
			miner.miningRate = 1;
		}
	}
}, {
	id: 'pickaxe_plus_3',
	name: 'Pickaxe Bonus DMG +2',
	cost: 6,
	effect: 'Increases pickaxe damage by an additional 2',
	purchased: false,
	action: function action() {
		gameState.pickaxeLevel += 2;
	}
}, {
	id: 'pickaxe_plus_4',
	name: 'Mega Pickaxe',
	cost: 15,
	effect: 'Increases pickaxe damage by an additional 5',
	purchased: false,
	action: function action() {
		gameState.pickaxeLevel += 5;
	}
}];
var prestigeDrones = [{
	id: 'drone_speedup',
	name: 'Drone Technology +1',
	cost: 8,
	effect: 'Increases Drone DPS by 50',
	purchased: false,
	action: function action() {
		if (!gameState.droneLevel) {
			gameState.droneLevel = 0;
		}
		gameState.droneLevel += 5;
	}
}, {
	id: 'drone_overclock',
	name: 'Drone Overclock',
	cost: 12,
	effect: 'Increases Drone DPS by 100',
	purchased: false,
	action: function action() {
		gameState.droneLevel += 10;
	}
}];
var droneUpgrades = [{
	id: 'drone_level_1',
	name: 'Buy Drones (Lv +1)',
	cost: 5000,
	effect: 'Each level adds +10 DPS',
	purchased: false,
	multi: true,
	level: 0,
	action: function action() {
		if (!gameState.droneLevel) {
			gameState.droneLevel = 0;
		}
		gameState.droneLevel++;
		this.level++;
		this.cost = Math.floor(this.cost * 1.5);
		updateDroneObjects();
	}
}];
/**** 
* UI
****/ 
var upgradeMenu = new Container();
var tooltip = new Text2('', {
	size: 40,
	fill: 0xFFFFFF
});
game.addChild(tooltip);
var moneyDisplay = new Text2('$0', {
	size: 80,
	fill: 0xFFFFFF,
	fontWeight: 'bold',
	stroke: 0x000000,
	strokeThickness: 5
});
moneyDisplay.x = 2048 / 2 - moneyDisplay.width / 2;
moneyDisplay.y = 50;
game.addChild(moneyDisplay);
// Position prestige display so as not to conflict with pause button (avoid upper-left 200×200)
var prestigeDisplay = new Text2('Prestige: 0', {
	size: 50,
	fill: 0xFFFFFF,
	fontWeight: 'bold',
	stroke: 0x000000,
	strokeThickness: 4
});
prestigeDisplay.x = 250;
prestigeDisplay.y = 50;
game.addChild(prestigeDisplay);
var shopOpenButton = LK.getAsset('shop_icon', {
	anchorX: 0.5,
	anchorY: 0.5
});
shopOpenButton.x = 2048 - 150;
shopOpenButton.y = 2732 - 150;
shopOpenButton.down = function () {
	createMainUpgradeMenu();
	game.addChild(upgradeMenu);
};
game.addChild(shopOpenButton);
// Move prestige shop button to avoid the upper left corner
var prestigeShopButton = LK.getAsset('prestige_shop_icon', {
	anchorX: 0.5,
	anchorY: 0.5
});
prestigeShopButton.x = 250;
prestigeShopButton.y = 2732 - 150;
prestigeShopButton.down = function () {
	if (canPrestige()) {
		doPrestige();
	} else {
		createPrestigeShopMenu();
		game.addChild(upgradeMenu);
	}
};
game.addChild(prestigeShopButton);
// Debug: Add money button
var addMoneyButton = LK.getAsset('buy_button', {
	anchorX: 0.5,
	anchorY: 0.5
});
addMoneyButton.x = 200;
addMoneyButton.y = 2732 - 300;
addMoneyButton.down = function () {
	gameState.money += 5000000000;
	updateUI();
};
game.addChild(addMoneyButton);
/**** 
* Upgrade Interaction Helpers (for showing/hiding descriptions)
****/ 
var currentUpgradeDesc = null;
var currentUpgradeDescText = null;
function showUpgradeDesc(upg, btn) {
	hideUpgradeDesc();
	currentUpgradeDesc = upg;
	currentUpgradeDescText = new Text2(upg.effect, {
		size: 35,
		fill: 0xFFFFFF,
		align: 'center'
	});
	currentUpgradeDescText.x = btn.x;
	currentUpgradeDescText.y = btn.y - 120;
	upgradeMenu.addChild(currentUpgradeDescText);
}
function hideUpgradeDesc() {
	currentUpgradeDesc = null;
	if (currentUpgradeDescText) {
		currentUpgradeDescText.destroy();
		currentUpgradeDescText = null;
	}
}
/**** 
* Main Upgrade Menu – arranged in two columns
****/ 
function createMainUpgradeMenu() {
	upgradeMenu.removeChildren();
	subUpgradeItemRefs = [];
	var menuBg = LK.getAsset('rectangle', {
		width: 1800,
		height: 2200,
		color: 0x2a2a2a,
		anchorX: 0.5,
		anchorY: 0.5
	});
	menuBg.x = 2048 / 2;
	menuBg.y = 2732 / 2 + 50;
	upgradeMenu.addChild(menuBg);
	var categories = [{
		name: 'Coal Upgrades',
		type: 'coal'
	}, {
		name: 'Iron Upgrades',
		type: 'iron'
	}, {
		name: 'Gold Upgrades',
		type: 'gold'
	}, {
		name: 'Diamond Upgrades',
		type: 'diamond'
	}, {
		name: 'Sapphire Upgrades',
		type: 'sapphire'
	}, {
		name: 'Emerald Upgrades',
		type: 'emerald'
	}, {
		name: 'Ruby Upgrades',
		type: 'ruby'
	}, {
		name: 'General Upgrades',
		type: 'general'
	}, {
		name: 'Drones',
		type: 'drones'
	}, {
		name: 'Achievements',
		type: 'achievements'
	}];
	var colSpacing = 400,
		rowSpacing = 300;
	for (var i = 0; i < categories.length; i++) {
		var col = i % 2;
		var row = Math.floor(i / 2);
		var x = menuBg.x + (col === 0 ? -colSpacing : colSpacing);
		var y = menuBg.y - 600 + row * rowSpacing;
		var btn = LK.getAsset('buy_button', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		btn.x = x;
		btn.y = y;
		upgradeMenu.addChild(btn);
		var txt = new Text2(categories[i].name, {
			size: 50,
			fill: 0x000000,
			align: 'center'
		});
		txt.anchor.set(0.5);
		txt.x = btn.x;
		txt.y = btn.y;
		upgradeMenu.addChild(txt);
		// When button is tapped, check category type:
		btn.down = function (cat) {
			return function (event) {
				event.stopPropagation && event.stopPropagation();
				hideUpgradeDesc();
				if (cat.type === 'general') {
					createSubUpgradeMenu('General Upgrades', generalUpgrades);
				} else if (cat.type === 'drones') {
					createSubUpgradeMenu('Drone Upgrades', droneUpgrades);
				} else if (cat.type === 'achievements') {
					createAchievementsMenu();
				} else {
					createSubUpgradeMenu(cat.name, oreUpgrades[cat.type]);
				}
			};
		}(categories[i]);
	}
	var closeBtn = LK.getAsset('cancelButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	closeBtn.x = menuBg.x + 700;
	closeBtn.y = menuBg.y - 900;
	closeBtn.down = function () {
		game.removeChild(upgradeMenu);
	};
	upgradeMenu.addChild(closeBtn);
	// Allow tapping on background to hide any open description
	upgradeMenu.down = function (event) {
		hideUpgradeDesc();
	};
}
var subUpgradeItemRefs = [];
function createSubUpgradeMenu(title, upgList) {
	upgradeMenu.removeChildren();
	subUpgradeItemRefs = [];
	var menuBg = LK.getAsset('rectangle', {
		width: 1800,
		height: 2200,
		color: 0x2a2a2a,
		anchorX: 0.5,
		anchorY: 0.5
	});
	menuBg.x = 2048 / 2;
	menuBg.y = 2732 / 2 + 50;
	upgradeMenu.addChild(menuBg);
	var titleText = new Text2(title, {
		size: 60,
		fill: 0xFFFFFF,
		align: 'center'
	});
	titleText.anchor.set(0.5);
	titleText.x = menuBg.x;
	titleText.y = menuBg.y - 1000;
	upgradeMenu.addChild(titleText);
	var startY = menuBg.y - 800;
	// Arrange upgrade items in two columns
	var colSpacing = 400;
	for (var i = 0; i < upgList.length; i++) {
		var col = i % 2;
		var row = Math.floor(i / 2);
		var btn = LK.getAsset('buy_button', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		btn.x = menuBg.x + (col === 0 ? -colSpacing : colSpacing);
		btn.y = startY + row * 250;
		upgradeMenu.addChild(btn);
		var displayName = upgList[i].name;
		if (typeof upgList[i].level === 'number' && upgList[i].level > 0) {
			displayName += " (Lv " + upgList[i].level + ")";
		}
		var costStr = upgList[i].multi ? "$" + upgList[i].cost : "$" + upgList[i].cost;
		var txt = new Text2(displayName, {
			size: 45,
			fill: 0x000000,
			align: 'center'
		});
		txt.anchor.set(0.5);
		txt.x = btn.x;
		txt.y = btn.y;
		upgradeMenu.addChild(txt);
		// Each upgrade button – first tap shows description; second tap purchases.
		btn.down = function (upg, btn) {
			return function (event) {
				event.stopPropagation && event.stopPropagation();
				if (currentUpgradeDesc && currentUpgradeDesc === upg) {
					if (canPurchaseUpgrade(upgList, upg)) {
						gameState.money -= upg.cost;
						upg.purchased = true;
						upg.action();
						updateUI();
						hideUpgradeDesc();
						createSubUpgradeMenu(title, upgList);
					}
				} else {
					showUpgradeDesc(upg, btn);
				}
			};
		}(upgList[i], btn);
		subUpgradeItemRefs.push({
			upgList: upgList,
			upgrade: upgList[i],
			textObj: txt
		});
	}
	var backBtn = LK.getAsset('cancelButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	backBtn.x = menuBg.x + 700;
	backBtn.y = menuBg.y - 1000;
	backBtn.down = function () {
		createMainUpgradeMenu();
	};
	upgradeMenu.addChild(backBtn);
	upgradeMenu.down = function (event) {
		hideUpgradeDesc();
	};
}
function canPurchaseUpgrade(upgList, upg) {
	if (upg.requires) {
		var needed = upgList.find(function (u) {
			return u.id === upg.requires;
		});
		if (!needed || !needed.purchased) {
			return false;
		}
	}
	if (!upg.multi && upg.purchased) {
		return false;
	}
	if (gameState.money < upg.cost) {
		return false;
	}
	return true;
}
// Prestige Shop Menu – similar interaction for prestige upgrades
function createPrestigeShopMenu() {
	upgradeMenu.removeChildren();
	var menuBg = LK.getAsset('rectangle', {
		width: 1800,
		height: 2200,
		color: 0x2a2a2a,
		anchorX: 0.5,
		anchorY: 0.5
	});
	menuBg.x = 2048 / 2;
	menuBg.y = 2732 / 2 + 50;
	upgradeMenu.addChild(menuBg);
	var titleText = new Text2('Prestige Shop', {
		size: 60,
		fill: 0xFFFFFF,
		align: 'center'
	});
	titleText.anchor.set(0.5);
	titleText.x = menuBg.x;
	titleText.y = menuBg.y - 1000;
	upgradeMenu.addChild(titleText);
	var shardText = new Text2('Prestige Shards: ' + gameState.prestigeCurrency, {
		size: 50,
		fill: 0xFFFF00,
		align: 'center'
	});
	shardText.anchor.set(0.5);
	shardText.x = menuBg.x;
	shardText.y = menuBg.y - 900;
	upgradeMenu.addChild(shardText);
	var combinedUpgrades = prestigeUpgrades.concat(prestigeDrones);
	var colSpacing = 400,
		rowSpacing = 250;
	var startX = menuBg.x - colSpacing;
	for (var i = 0; i < combinedUpgrades.length; i++) {
		var col = i % 2;
		var row = Math.floor(i / 2);
		var btn = LK.getAsset('buy_button', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		btn.x = startX + col * colSpacing;
		btn.y = menuBg.y - 600 + row * rowSpacing;
		upgradeMenu.addChild(btn);
		var txtStr = combinedUpgrades[i].name;
		var txt = new Text2(txtStr, {
			size: 45,
			fill: 0x000000,
			align: 'center'
		});
		txt.anchor.set(0.5);
		txt.x = btn.x;
		txt.y = btn.y;
		upgradeMenu.addChild(txt);
		btn.down = function (upg, btn) {
			return function (event) {
				event.stopPropagation && event.stopPropagation();
				if (currentUpgradeDesc && currentUpgradeDesc === upg) {
					if (gameState.prestigeCurrency >= upg.cost) {
						gameState.prestigeCurrency -= upg.cost;
						upg.action();
						updateUI();
						hideUpgradeDesc();
						createPrestigeShopMenu();
					}
				} else {
					showUpgradeDesc(upg, btn);
				}
			};
		}(combinedUpgrades[i], btn);
	}
	var backBtn = LK.getAsset('cancelButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	backBtn.x = menuBg.x + 700;
	backBtn.y = menuBg.y - 1000;
	backBtn.down = function () {
		game.removeChild(upgradeMenu);
	};
	upgradeMenu.addChild(backBtn);
	upgradeMenu.down = function (event) {
		hideUpgradeDesc();
	};
}
/**** 
* Achievements Menu – two columns of badges and text
****/ 
function createAchievementsMenu() {
	upgradeMenu.removeChildren();
	var menuBg = LK.getAsset('rectangle', {
		width: 1800,
		height: 2200,
		color: 0x333333,
		anchorX: 0.5,
		anchorY: 0.5
	});
	menuBg.x = 2048 / 2;
	menuBg.y = 2732 / 2 + 50;
	upgradeMenu.addChild(menuBg);
	var titleText = new Text2('Achievements', {
		size: 60,
		fill: 0xFFFFFF,
		align: 'center'
	});
	titleText.anchor.set(0.5);
	titleText.x = menuBg.x;
	titleText.y = menuBg.y - 1000;
	upgradeMenu.addChild(titleText);
	var colSpacing = 400,
		rowSpacing = 200;
	var startX = menuBg.x - colSpacing / 2;
	for (var i = 0; i < achievements.length; i++) {
		var col = i % 2;
		var row = Math.floor(i / 2);
		var badge = LK.getAsset('rectangle', {
			width: 100,
			height: 100,
			color: achievements[i].achieved ? 0x00FF00 : 0x555555,
			anchorX: 0.5,
			anchorY: 0.5
		});
		badge.x = col === 0 ? startX : startX + colSpacing;
		badge.y = menuBg.y - 600 + row * rowSpacing;
		upgradeMenu.addChild(badge);
		var text = new Text2(achievements[i].name + "\n" + achievements[i].description, {
			size: 35,
			fill: achievements[i].achieved ? 0xFFFFFF : 0x999999,
			align: 'left'
		});
		text.x = badge.x + 120;
		text.y = badge.y - 30;
		upgradeMenu.addChild(text);
	}
	var backBtn = LK.getAsset('cancelButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	backBtn.x = menuBg.x + 700;
	backBtn.y = menuBg.y - 1000;
	backBtn.down = function () {
		createMainUpgradeMenu();
	};
	upgradeMenu.addChild(backBtn);
	upgradeMenu.down = function (event) {
		hideUpgradeDesc();
	};
}
/**** 
* GAME LOOP
****/ 
var quantumSelectTimer = 0;
var quantumSelectionActive = false;
game.update = function () {
	if (miner) {
		miner.update();
	}
	for (var i = 0; i < droneObjects.length; i++) {
		droneObjects[i].updateDrone();
	}
	if (typeof LK.time !== 'undefined' && LK.time.elapsed % 60 === 0) {
		droneDamageTick();
	}
	clusters.forEach(function (cluster) {
		cluster.oreList.forEach(function (ore) {
			if (ore.health > 0) {
				var fraction = ore.health / ore.maxHealth;
				ore.healthBar.width = 120 * fraction;
				ore.healthBar.fill = interpolateColor(0xFF0000, 0x00FF00, fraction);
				ore.alpha = fraction;
			}
		});
	});
	if (upgradeMenu.parent) {
		subUpgradeItemRefs.forEach(function (ref) {
			var upg = ref.upgrade;
			var canBuy = canPurchaseUpgrade(ref.upgList, upg);
			if (ref.textObj && ref.textObj.style) {
				ref.textObj.style.fill = canBuy ? 0xFFFFFF : 0x666666;
			}
		});
	}
	if (quantumSelectionActive) {
		quantumSelectTimer++;
		if (quantumSelectTimer > 15 * 60) {
			quantumSelectionActive = false;
			miner.quantumPathActive = false;
		}
	}
	// Check achievements and pop up if newly unlocked
	achievements.forEach(function (ach) {
		if (!ach.achieved && ach.condition()) {
			ach.achieved = true;
			var achText = new Text2("Achievement Unlocked: " + ach.name, {
				size: 40,
				fill: 0xFFFF00
			});
			achText.x = 2048 / 2;
			achText.y = 100;
			game.addChild(achText);
			tween(achText, {
				alpha: 0
			}, {
				duration: 2000,
				onFinish: function onFinish() {
					achText.destroy();
				}
			});
		}
	});
	// Hide the prestige shop button until money >= $1B
	if (gameState.money < 1e9) {
		prestigeShopButton.visible = false;
	} else {
		prestigeShopButton.visible = true;
	}
};
/**** 
* UI Refresh & SAVE/LOAD
****/ 
function updateUI() {
	moneyDisplay.setText("$" + Math.floor(gameState.money).toLocaleString());
	moneyDisplay.x = 2048 / 2 - moneyDisplay.width / 2;
	prestigeDisplay.setText("Prestige: " + gameState.prestigeCount);
}
LK.saveGame = function () {
	return gameState;
};
LK.loadGame = function (data) {
	gameState = data;
	updateUI();
};
/**** 
* START GAME
****/ 
function startGame() {
	currentBackground = LK.getAsset('background', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	currentBackground.x = 2048 / 2;
	currentBackground.y = 2732 / 2;
	// Add background at index 0 so all UI elements are above
	game.addChildAt(currentBackground, 0);
	miner = new Miner();
	miner.x = 2048 / 2;
	miner.y = 2732 / 2;
	game.addChild(miner);
	initialSpawn();
	updateUI();
}
startGame();
game.pauseForQuantumSelection = function () {
	quantumSelectionActive = true;
	quantumSelectTimer = 0;
	// (Stub: darken screen, highlight ores, etc.)
};

===================================================================
--- original.js
+++ change.js
@@ -6,18 +6,84 @@
 /**** 
 * Classes
 ****/ 
 /**** 
+* Prestige and Background Helpers
+****
+// New prestige requirement: 1e9, 2e9, 4e9, etc.
+function getPrestigeRequirement() {
+	return 1e9 * Math.pow(2, gameState.prestigeCount);
+}
+function canPrestige() { 
+	return gameState.money >= getPrestigeRequirement(); 
+}
+function calculatePrestigeShards() {
+	// For now, simply give 1 shard per prestige.
+	return 1;
+}
+function doPrestige() {
+	// Clear clusters
+	for (var i = clusters.length - 1; i >= 0; i--) {
+		var c = clusters[i];
+		c.removeChildren();
+		if (c.parent) { c.parent.removeChild(c); }
+		clusters.splice(i, 1);
+	}
+	var shards = calculatePrestigeShards();
+	gameState.prestigeCurrency += shards;
+	gameState.prestigeCount++;
+	gameState.money = 0;
+	gameState.currentTier = 1;
+	for (var key in gameState.clusterCount) { gameState.clusterCount[key] = 0; }
+	handleBackgroundTransition();
+	initialSpawn();
+	updateUI();
+}
+function handleBackgroundTransition() {
+	if (nextBackground && nextBackground.parent) { nextBackground.parent.removeChild(nextBackground); }
+	var newBg = null;
+	if (gameState.prestigeCount >= 8) {
+		newBg = LK.getAsset('background_tier8', { anchorX: 0.5, anchorY: 0.5 });
+	} else if (gameState.prestigeCount >= 5) {
+		newBg = LK.getAsset('background_tier5', { anchorX: 0.5, anchorY: 0.5 });
+	} else if (gameState.prestigeCount >= 3) {
+		newBg = LK.getAsset('background_tier3', { anchorX: 0.5, anchorY: 0.5 });
+	} else {
+		newBg = LK.getAsset('background', { anchorX: 0.5, anchorY: 0.5 });
+	}
+	newBg.x = 2048 / 2;
+	newBg.y = 2732 + 2732 / 2;
+	// Add new background at index 0 so all UI elements remain on top
+	game.addChildAt(newBg, 0);
+	nextBackground = newBg;
+	var oldBg = currentBackground;
+	if (!oldBg) {
+		oldBg = LK.getAsset('background', { anchorX: 0.5, anchorY: 0.5 });
+		oldBg.x = 2048 / 2;
+		oldBg.y = 2732 / 2;
+		game.addChildAt(oldBg, 0);
+	}
+	if (oldBg === newBg) { currentBackground = newBg; return; }
+	var dur = 3000;
+	tween(oldBg, { y: oldBg.y - 2732 }, {
+		duration: dur,
+		onFinish: function () { if (oldBg && oldBg.parent) { oldBg.parent.removeChild(oldBg); } }
+	});
+	tween(newBg, { y: 2732 / 2 }, {
+		duration: dur,
+		onFinish: function () { currentBackground = newBg; }
+	});
+}
+/**** 
 * CLASSES
 ****/ 
 /** 
-* Cluster – spawns multiple Ore objects of a given type.
+* Cluster – spawns multiple ore objects of a given type.
 */ 
 var Cluster = Container.expand(function (type) {
 	var self = Container.call(this);
 	self.type = type;
 	self.oreList = [];
-	// Random center position
 	var centerX = 100 + Math.random() * (2048 - 200);
 	var centerY = 100 + Math.random() * (2732 - 200);
 	self.x = centerX;
 	self.y = centerY;
@@ -56,20 +122,19 @@
 	};
 	return self;
 });
 /** 
-* Drone – moves around and zaps nearby ores.
-* (Added slight random deviation for natural movement.)
+* Drone – moves around and zaps nearby ores (with slight random deviations).
 */ 
 var Drone = Container.expand(function () {
 	var self = Container.call(this);
 	self.droneSprite = LK.getAsset('drone_asset', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
 	self.addChild(self.droneSprite);
-	var SPEED = 8;
-	var MIN_X = 50,
+	var SPEED = 8,
+		MIN_X = 50,
 		MAX_X = 2000,
 		MIN_Y = 50,
 		MAX_Y = 2682;
 	self.vx = Math.random() < 0.5 ? SPEED : -SPEED;
@@ -86,9 +151,8 @@
 		}
 		if (self.y < MIN_Y || self.y > MAX_Y) {
 			self.vy = -self.vy;
 		}
-		// Random slight deviation
 		if (Math.random() < 0.01) {
 			self.vx += (Math.random() - 0.5) * 2;
 			self.vy += (Math.random() - 0.5) * 2;
 			var speed = Math.sqrt(self.vx * self.vx + self.vy * self.vy);
@@ -109,10 +173,10 @@
 			cluster.oreList.forEach(function (ore) {
 				if (ore.health > 0) {
 					var oreGlobalX = cluster.x + ore.x;
 					var oreGlobalY = cluster.y + ore.y;
-					var dx = self.x - oreGlobalX;
-					var dy = self.y - oreGlobalY;
+					var dx = self.x - oreGlobalX,
+						dy = self.y - oreGlobalY;
 					var dist = Math.sqrt(dx * dx + dy * dy);
 					if (dist < self.AOE_RANGE) {
 						ore.health -= self.droneDamage;
 						hitSomething = true;
@@ -127,17 +191,18 @@
 				}
 			});
 		});
 		if (hitSomething) {
+			// Play drone shot sound once per zap
+			LK.getSound('drone_shot').play();
 			self.cooldown = self.COOLDOWN_MAX;
 		}
 	};
 	return self;
 });
 /** 
-* Miner – moves to and mines the nearest ore.
-* (Includes Chronostone speed boost, Soul Ember value boost, Quantum Shard chain mode,
-* and the new Hyper Mining Mode.)
+* Miner – moves toward and mines the nearest ore.
+* Includes Chronostone, Soul Ember, Quantum Shard, and the new Hyper Mining Mode.
 */ 
 var Miner = Container.expand(function () {
 	var self = Container.call(this);
 	self.attachAsset('miner', {
@@ -149,26 +214,26 @@
 	self.miningRange = 25;
 	self.miningCooldown = 0;
 	self.miningRate = 30;
 	self.miningDamage = 1;
-	// Save original values for hyper mode resets:
+	// Save originals for hyper mode
 	self.originalMiningRate = self.miningRate;
 	self.originalMiningDamage = self.miningDamage;
 	// Chronostone boost
 	self.speedBoostMultiplier = 1;
 	self.speedBoostTimer = 0;
 	// Soul Ember boost
 	self.soulEmberStacks = 0;
-	// Quantum Shard
+	// Quantum Shard mode
 	self.quantumPathActive = false;
 	self.quantumPath = [];
 	self.quantumShardValueBonus = false;
 	// New Hyper Mining Mode
 	self.hyperMiningActive = false;
 	self.hyperMiningTimer = 0;
 	self.activateHyperMining = function () {
 		self.hyperMiningActive = true;
-		self.hyperMiningTimer = 10 * 60; // 10 seconds at 60fps
+		self.hyperMiningTimer = 10 * 60;
 		self.miningDamage *= 2;
 		self.miningRate = Math.max(1, Math.floor(self.miningRate / 2));
 	};
 	self.findNewTarget = function () {
@@ -255,8 +320,13 @@
 		}
 		var damageDealt = self.miningDamage * gameState.pickaxeLevel * (gameState.pickaxeBaseMultiplier || 1);
 		ore.health -= damageDealt;
 		self.miningCooldown = self.miningRate;
+		// Play mining sound for this ore type
+		var mineSound = LK.getSound('mine_' + ore.type);
+		if (mineSound) {
+			mineSound.play();
+		}
 		if (ore.health <= 0) {
 			var baseValue = ore.getValue();
 			var finalValue = baseValue;
 			if (self.soulEmberStacks > 0) {
@@ -269,9 +339,13 @@
 			gameState.money += finalValue;
 			updateUI();
 			ore.cluster.notifyOreDestroyed(ore);
 			spawnMiningParticles(ore, 5);
-			// If ore is explosive, trigger chain reaction and screen shake.
+			// Play ore-destroy sound
+			var destroySound = LK.getSound('ore_destroy_' + ore.type);
+			if (destroySound) {
+				destroySound.play();
+			}
 			if (ore.type === "explosive" && ore.explode) {
 				ore.explode();
 			}
 		} else {
@@ -299,16 +373,15 @@
 	};
 	return self;
 });
 /** 
-* Ore – represents a single ore object.
-* This version integrates the health bar, special ore glow, and explosive ore behavior.
+* Ore – represents a single ore.
+* Includes a health bar, pulsing glow for special ores, and explosive behavior.
 */ 
 var Ore = Container.expand(function (type, cluster) {
 	var self = Container.call(this);
 	self.type = type;
 	self.cluster = cluster;
-	// Determine tier: standard ores get a tier 1-7, others (like special) are set high.
 	var typeList = ['coal', 'iron', 'gold', 'diamond', 'sapphire', 'emerald', 'ruby'];
 	if (typeList.indexOf(type) >= 0) {
 		self.tier = typeList.indexOf(type) + 1;
 	} else {
@@ -316,14 +389,12 @@
 	}
 	self.baseValue = oreData[type].baseValue;
 	self.maxHealth = oreData[type].baseHealth;
 	self.health = self.maxHealth;
-	// Attach sprite for the ore
 	self.attachAsset(oreData[type].assetId, {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
-	// Health bar
 	self.healthBar = LK.getAsset('rectangle', {
 		width: 120,
 		height: 20,
 		fill: 0x00FF00,
@@ -332,9 +403,8 @@
 	});
 	self.healthBar.x = 0;
 	self.healthBar.y = -70;
 	self.addChild(self.healthBar);
-	// For special ores, add a pulsing glow effect (if applicable)
 	if (["chronostone", "soulember", "quantumshard"].indexOf(type) >= 0) {
 		var _pulseGlow = function pulseGlow() {
 			tween(glow, {
 				alpha: 1
@@ -357,9 +427,8 @@
 		glow.alpha = 0.5;
 		self.addChildAt(glow, 0);
 		_pulseGlow();
 	}
-	// For explosive ore, add an explosion method
 	if (type === "explosive") {
 		self.explode = function () {
 			var explosionRadius = 100;
 			clusters.forEach(function (cluster) {
@@ -397,9 +466,9 @@
 /**** 
 * Initialize Game
 ****/ 
 /**** 
-* Game Initialization and Helper Functions
+* GAME INITIALIZATION AND HELPER FUNCTIONS
 ****/ 
 var game = new LK.Game({
 	backgroundColor: 0x1a1a1a
 });
@@ -408,29 +477,37 @@
 * Game Code
 ****/ 
 // Returns a random integer between min and max (inclusive)
 /**** 
-* Helper Functions
+* HELPER FUNCTIONS
 ****/ 
+/**** 
+* PLUGINS
+****/ 
+/**** 
+* SOUND INITIALIZATION
+****/ 
+// Shapes and Images
+/**** 
+* ASSETS
+****/ 
 function randomInt(min, max) {
 	return Math.floor(Math.random() * (max - min + 1)) + min;
 }
-// Enhanced mining particles – if ore is special, tint accordingly
+// Enhanced mining particles – tint special ores if needed
 function spawnMiningParticles(ore, num) {
 	for (var i = 0; i < num; i++) {
 		var p = LK.getAsset('mining_particle', {
 			anchorX: 0.5,
 			anchorY: 0.5
 		});
-		// Position at ore's global coordinates
 		if (ore.parent) {
 			p.x = ore.parent.x + ore.x;
 			p.y = ore.parent.y + ore.y;
 		} else {
 			p.x = ore.x;
 			p.y = ore.y;
 		}
-		// If ore is special, try to tint the particle (if supported)
 		if (["chronostone", "soulember", "quantumshard"].indexOf(ore.type) >= 0) {
 			p.tint = oreData[ore.type].color || 0xffffff;
 		}
 		p.vx = (Math.random() - 0.5) * 10;
@@ -460,13 +537,13 @@
 	var g = Math.round(g1 + f * (g2 - g1));
 	var b = Math.round(b1 + f * (b2 - b1));
 	return r << 16 | g << 8 | b;
 }
-// Simple screen shake effect for explosions
+// Simple screen shake for explosions
 function screenShake(duration, magnitude) {
-	var originalX = game.x;
-	var originalY = game.y;
-	var shakeInterval = 50; // ms
+	var originalX = game.x,
+		originalY = game.y;
+	var shakeInterval = 50;
 	var elapsed = 0;
 	var shake = setInterval(function () {
 		elapsed += shakeInterval;
 		game.x = originalX + (Math.random() - 0.5) * magnitude;
@@ -477,9 +554,11 @@
 			game.y = originalY;
 		}
 	}, shakeInterval);
 }
-// Achievement system – add more as needed
+/**** 
+* ACHIEVEMENT SYSTEM
+****/ 
 var achievements = [{
 	id: 'first_mine',
 	name: 'First Mine',
 	description: 'Mine your first ore',
@@ -496,9 +575,9 @@
 		return gameState.money >= 1e9;
 	}
 }];
 /**** 
-* Ore Data
+* ORE DATA
 ****/ 
 var oreData = {
 	coal: {
 		baseValue: 5,
@@ -608,125 +687,19 @@
 			min: 2,
 			max: 3
 		};
 	},
-	// Prestige
+	// Prestige (with new requirements)
 	prestigeCount: 0,
 	prestigeCurrency: 0
 };
-/**** 
-* Helper Functions for Prestige & Background Transitions
-****/ 
-function getPrestigeRequirement() {
-	var base = 1e12;
-	var multiplier = Math.pow(1000, gameState.prestigeCount);
-	return base * multiplier;
-}
-function canPrestige() {
-	return gameState.money >= getPrestigeRequirement();
-}
-function calculatePrestigeShards() {
-	var threshold = getPrestigeRequirement();
-	if (gameState.money < threshold) {
-		return 0;
-	}
-	var ratio = gameState.money / threshold;
-	var shards = Math.floor(Math.log10(ratio) * 2);
-	return Math.max(shards, 1);
-}
-function doPrestige() {
-	// Clear all clusters
-	for (var i = clusters.length - 1; i >= 0; i--) {
-		var c = clusters[i];
-		c.removeChildren();
-		if (c.parent) {
-			c.parent.removeChild(c);
-		}
-		clusters.splice(i, 1);
-	}
-	var shards = calculatePrestigeShards();
-	gameState.prestigeCurrency += shards;
-	gameState.prestigeCount++;
-	gameState.money = 0;
-	gameState.currentTier = 1;
-	for (var key in gameState.clusterCount) {
-		gameState.clusterCount[key] = 0;
-	}
-	handleBackgroundTransition();
-	initialSpawn();
-	updateUI();
-}
-function handleBackgroundTransition() {
-	if (nextBackground && nextBackground.parent) {
-		nextBackground.parent.removeChild(nextBackground);
-	}
-	var newBg = null;
-	if (gameState.prestigeCount >= 8) {
-		newBg = LK.getAsset('background_tier8', {
-			anchorX: 0.5,
-			anchorY: 0.5
-		});
-	} else if (gameState.prestigeCount >= 5) {
-		newBg = LK.getAsset('background_tier5', {
-			anchorX: 0.5,
-			anchorY: 0.5
-		});
-	} else if (gameState.prestigeCount >= 3) {
-		newBg = LK.getAsset('background_tier3', {
-			anchorX: 0.5,
-			anchorY: 0.5
-		});
-	} else {
-		newBg = LK.getAsset('background', {
-			anchorX: 0.5,
-			anchorY: 0.5
-		});
-	}
-	newBg.x = 2048 / 2;
-	newBg.y = 2732 + 2732 / 2; // start off-screen (bottom)
-	game.addChild(newBg);
-	nextBackground = newBg;
-	var oldBg = currentBackground;
-	if (!oldBg) {
-		oldBg = LK.getAsset('background', {
-			anchorX: 0.5,
-			anchorY: 0.5
-		});
-		oldBg.x = 2048 / 2;
-		oldBg.y = 2732 / 2;
-		game.addChildAt(oldBg, 0);
-	}
-	if (oldBg === newBg) {
-		currentBackground = newBg;
-		return;
-	}
-	var dur = 3000;
-	tween(oldBg, {
-		y: oldBg.y - 2732
-	}, {
-		duration: dur,
-		onFinish: function onFinish() {
-			if (oldBg && oldBg.parent) {
-				oldBg.parent.removeChild(oldBg);
-			}
-		}
-	});
-	tween(newBg, {
-		y: 2732 / 2
-	}, {
-		duration: dur,
-		onFinish: function onFinish() {
-			currentBackground = newBg;
-		}
-	});
-}
 var clusters = [];
 var currentBackground = null;
 var nextBackground = null;
 var miner = null;
 var droneObjects = [];
 var droneSprites = [];
-// Initial spawn of clusters for each ore type
+// Initial spawn of clusters
 function initialSpawn() {
 	var allTypes = ['coal', 'iron', 'gold', 'diamond', 'sapphire', 'emerald', 'ruby'];
 	allTypes.forEach(function (type, idx) {
 		var t = idx + 1;
@@ -735,12 +708,11 @@
 				maybeSpawnCluster(type);
 			}
 		}
 	});
-	// Attempt to spawn special ores
 	maybeSpawnSpecialOres();
 }
-// Create new drones up to gameState.droneLevel
+// Create drones up to droneLevel
 function updateDroneObjects() {
 	while (droneObjects.length < gameState.droneLevel) {
 		var d = new Drone();
 		d.x = 200 + Math.random() * (2048 - 400);
@@ -748,9 +720,8 @@
 		droneObjects.push(d);
 		game.addChild(d);
 	}
 }
-// Position drone sprites in the UI after upgrades (if desired)
 function updateDroneSprites() {
 	while (droneSprites.length < gameState.droneLevel) {
 		var drone = LK.getAsset('drone_asset', {
 			anchorX: 0.5,
@@ -761,9 +732,9 @@
 		droneSprites.push(drone);
 		game.addChild(drone);
 	}
 }
-// Standard helper function to spawn a cluster of a given ore type
+// Spawn a cluster of a given ore type
 function maybeSpawnCluster(type) {
 	var typeList = ['coal', 'iron', 'gold', 'diamond', 'sapphire', 'emerald', 'ruby'];
 	if (typeList.indexOf(type) >= 0) {
 		var tIndex = typeList.indexOf(type) + 1;
@@ -778,9 +749,9 @@
 	game.addChild(cluster);
 	clusters.push(cluster);
 	gameState.clusterCount[type]++;
 }
-// Attempt to spawn special ores if prestige level is high enough
+// Attempt to spawn special ores based on prestige level
 function maybeSpawnSpecialOres() {
 	var spawnChances = [];
 	if (gameState.prestigeCount >= 3) {
 		spawnChances.push({
@@ -822,9 +793,9 @@
 		}
 	});
 }
 /**** 
-* Drone DPS – standard and tick functions.
+* Drone DPS Functions
 ****/ 
 function getDroneDPS() {
 	return 10 * gameState.droneLevel;
 }
@@ -1075,22 +1046,22 @@
 		gameState.pickaxeBaseMultiplier *= 1.2;
 		this.cost = Math.floor(this.cost * 2);
 	}
 }];
-// Prestige shop upgrades for pickaxe artifacts
+// Prestige shop upgrades (lower costs and some new high‐value rewards)
 var prestigeUpgrades = [{
 	id: 'pickaxe_plus_1',
 	name: 'Pickaxe Level +1',
-	cost: 5,
+	cost: 3,
 	effect: 'Increases pickaxe damage by 1',
 	purchased: false,
 	action: function action() {
 		gameState.pickaxeLevel++;
 	}
 }, {
 	id: 'pickaxe_plus_2',
 	name: 'Pickaxe Speed +10%',
-	cost: 8,
+	cost: 4,
 	effect: 'Reduces mining cooldown by 10%',
 	purchased: false,
 	action: function action() {
 		miner.miningRate = Math.floor(miner.miningRate * 0.90);
@@ -1100,30 +1071,46 @@
 	}
 }, {
 	id: 'pickaxe_plus_3',
 	name: 'Pickaxe Bonus DMG +2',
-	cost: 10,
+	cost: 6,
 	effect: 'Increases pickaxe damage by an additional 2',
 	purchased: false,
 	action: function action() {
 		gameState.pickaxeLevel += 2;
 	}
+}, {
+	id: 'pickaxe_plus_4',
+	name: 'Mega Pickaxe',
+	cost: 15,
+	effect: 'Increases pickaxe damage by an additional 5',
+	purchased: false,
+	action: function action() {
+		gameState.pickaxeLevel += 5;
+	}
 }];
-// Prestige shop upgrades for drones
 var prestigeDrones = [{
 	id: 'drone_speedup',
 	name: 'Drone Technology +1',
-	cost: 10,
+	cost: 8,
 	effect: 'Increases Drone DPS by 50',
 	purchased: false,
 	action: function action() {
 		if (!gameState.droneLevel) {
 			gameState.droneLevel = 0;
 		}
 		gameState.droneLevel += 5;
 	}
+}, {
+	id: 'drone_overclock',
+	name: 'Drone Overclock',
+	cost: 12,
+	effect: 'Increases Drone DPS by 100',
+	purchased: false,
+	action: function action() {
+		gameState.droneLevel += 10;
+	}
 }];
-// Standard drone upgrades
 var droneUpgrades = [{
 	id: 'drone_level_1',
 	name: 'Buy Drones (Lv +1)',
 	cost: 5000,
@@ -1159,16 +1146,17 @@
 });
 moneyDisplay.x = 2048 / 2 - moneyDisplay.width / 2;
 moneyDisplay.y = 50;
 game.addChild(moneyDisplay);
+// Position prestige display so as not to conflict with pause button (avoid upper-left 200×200)
 var prestigeDisplay = new Text2('Prestige: 0', {
 	size: 50,
 	fill: 0xFFFFFF,
 	fontWeight: 'bold',
 	stroke: 0x000000,
 	strokeThickness: 4
 });
-prestigeDisplay.x = 50;
+prestigeDisplay.x = 250;
 prestigeDisplay.y = 50;
 game.addChild(prestigeDisplay);
 var shopOpenButton = LK.getAsset('shop_icon', {
 	anchorX: 0.5,
@@ -1180,13 +1168,14 @@
 	createMainUpgradeMenu();
 	game.addChild(upgradeMenu);
 };
 game.addChild(shopOpenButton);
+// Move prestige shop button to avoid the upper left corner
 var prestigeShopButton = LK.getAsset('prestige_shop_icon', {
 	anchorX: 0.5,
 	anchorY: 0.5
 });
-prestigeShopButton.x = 150;
+prestigeShopButton.x = 250;
 prestigeShopButton.y = 2732 - 150;
 prestigeShopButton.down = function () {
 	if (canPrestige()) {
 		doPrestige();
@@ -1195,8 +1184,9 @@
 		game.addChild(upgradeMenu);
 	}
 };
 game.addChild(prestigeShopButton);
+// Debug: Add money button
 var addMoneyButton = LK.getAsset('buy_button', {
 	anchorX: 0.5,
 	anchorY: 0.5
 });
@@ -1206,8 +1196,35 @@
 	gameState.money += 5000000000;
 	updateUI();
 };
 game.addChild(addMoneyButton);
+/**** 
+* Upgrade Interaction Helpers (for showing/hiding descriptions)
+****/ 
+var currentUpgradeDesc = null;
+var currentUpgradeDescText = null;
+function showUpgradeDesc(upg, btn) {
+	hideUpgradeDesc();
+	currentUpgradeDesc = upg;
+	currentUpgradeDescText = new Text2(upg.effect, {
+		size: 35,
+		fill: 0xFFFFFF,
+		align: 'center'
+	});
+	currentUpgradeDescText.x = btn.x;
+	currentUpgradeDescText.y = btn.y - 120;
+	upgradeMenu.addChild(currentUpgradeDescText);
+}
+function hideUpgradeDesc() {
+	currentUpgradeDesc = null;
+	if (currentUpgradeDescText) {
+		currentUpgradeDescText.destroy();
+		currentUpgradeDescText = null;
+	}
+}
+/**** 
+* Main Upgrade Menu – arranged in two columns
+****/ 
 function createMainUpgradeMenu() {
 	upgradeMenu.removeChildren();
 	subUpgradeItemRefs = [];
 	var menuBg = LK.getAsset('rectangle', {
@@ -1221,70 +1238,77 @@
 	menuBg.y = 2732 / 2 + 50;
 	upgradeMenu.addChild(menuBg);
 	var categories = [{
 		name: 'Coal Upgrades',
-		yOff: -800,
 		type: 'coal'
 	}, {
 		name: 'Iron Upgrades',
-		yOff: -600,
 		type: 'iron'
 	}, {
 		name: 'Gold Upgrades',
-		yOff: -400,
 		type: 'gold'
 	}, {
 		name: 'Diamond Upgrades',
-		yOff: -200,
 		type: 'diamond'
 	}, {
 		name: 'Sapphire Upgrades',
-		yOff: 0,
 		type: 'sapphire'
 	}, {
 		name: 'Emerald Upgrades',
-		yOff: 200,
 		type: 'emerald'
 	}, {
 		name: 'Ruby Upgrades',
-		yOff: 400,
 		type: 'ruby'
 	}, {
 		name: 'General Upgrades',
-		yOff: 600,
 		type: 'general'
 	}, {
 		name: 'Drones',
-		yOff: 800,
 		type: 'drones'
+	}, {
+		name: 'Achievements',
+		type: 'achievements'
 	}];
-	categories.forEach(function (cat) {
+	var colSpacing = 400,
+		rowSpacing = 300;
+	for (var i = 0; i < categories.length; i++) {
+		var col = i % 2;
+		var row = Math.floor(i / 2);
+		var x = menuBg.x + (col === 0 ? -colSpacing : colSpacing);
+		var y = menuBg.y - 600 + row * rowSpacing;
 		var btn = LK.getAsset('buy_button', {
 			anchorX: 0.5,
 			anchorY: 0.5
 		});
-		btn.x = menuBg.x;
-		btn.y = menuBg.y + cat.yOff;
+		btn.x = x;
+		btn.y = y;
 		upgradeMenu.addChild(btn);
-		var txt = new Text2(cat.name, {
+		var txt = new Text2(categories[i].name, {
 			size: 50,
 			fill: 0x000000,
 			align: 'center'
 		});
 		txt.anchor.set(0.5);
 		txt.x = btn.x;
 		txt.y = btn.y;
 		upgradeMenu.addChild(txt);
-		btn.down = function () {
-			if (cat.type === 'general') {
-				createSubUpgradeMenu('General Upgrades', generalUpgrades);
-			} else if (cat.type === 'drones') {
-				createSubUpgradeMenu('Drone Upgrades', droneUpgrades);
-			} else {
-				createSubUpgradeMenu(cat.name, oreUpgrades[cat.type]);
-			}
-		};
-	});
+		// When button is tapped, check category type:
+		btn.down = function (cat) {
+			return function (event) {
+				event.stopPropagation && event.stopPropagation();
+				hideUpgradeDesc();
+				if (cat.type === 'general') {
+					createSubUpgradeMenu('General Upgrades', generalUpgrades);
+				} else if (cat.type === 'drones') {
+					createSubUpgradeMenu('Drone Upgrades', droneUpgrades);
+				} else if (cat.type === 'achievements') {
+					createAchievementsMenu();
+				} else {
+					createSubUpgradeMenu(cat.name, oreUpgrades[cat.type]);
+				}
+			};
+		}(categories[i]);
+	}
 	var closeBtn = LK.getAsset('cancelButton', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
@@ -1293,8 +1317,12 @@
 	closeBtn.down = function () {
 		game.removeChild(upgradeMenu);
 	};
 	upgradeMenu.addChild(closeBtn);
+	// Allow tapping on background to hide any open description
+	upgradeMenu.down = function (event) {
+		hideUpgradeDesc();
+	};
 }
 var subUpgradeItemRefs = [];
 function createSubUpgradeMenu(title, upgList) {
 	upgradeMenu.removeChildren();
@@ -1318,48 +1346,58 @@
 	titleText.x = menuBg.x;
 	titleText.y = menuBg.y - 1000;
 	upgradeMenu.addChild(titleText);
 	var startY = menuBg.y - 800;
-	upgList.forEach(function (upg, i) {
-		var itemContainer = new Container();
-		upgradeMenu.addChild(itemContainer);
+	// Arrange upgrade items in two columns
+	var colSpacing = 400;
+	for (var i = 0; i < upgList.length; i++) {
+		var col = i % 2;
+		var row = Math.floor(i / 2);
 		var btn = LK.getAsset('buy_button', {
 			anchorX: 0.5,
 			anchorY: 0.5
 		});
-		btn.x = menuBg.x;
-		btn.y = startY + i * 250;
-		itemContainer.addChild(btn);
-		var displayName = upg.name;
-		if (typeof upg.level === 'number' && upg.level > 0) {
-			displayName += " (Lv " + upg.level + ")";
+		btn.x = menuBg.x + (col === 0 ? -colSpacing : colSpacing);
+		btn.y = startY + row * 250;
+		upgradeMenu.addChild(btn);
+		var displayName = upgList[i].name;
+		if (typeof upgList[i].level === 'number' && upgList[i].level > 0) {
+			displayName += " (Lv " + upgList[i].level + ")";
 		}
-		var costStr = upg.multi ? "$" + upg.cost : "$" + upg.cost;
-		var txtStr = displayName + "\n" + upg.effect + "\n" + costStr;
-		var txt = new Text2(txtStr, {
-			size: 40,
-			fill: 0x666666,
+		var costStr = upgList[i].multi ? "$" + upgList[i].cost : "$" + upgList[i].cost;
+		var txt = new Text2(displayName, {
+			size: 45,
+			fill: 0x000000,
 			align: 'center'
 		});
 		txt.anchor.set(0.5);
 		txt.x = btn.x;
 		txt.y = btn.y;
-		itemContainer.addChild(txt);
-		btn.down = function () {
-			if (canPurchaseUpgrade(upgList, upg)) {
-				gameState.money -= upg.cost;
-				upg.purchased = true;
-				upg.action();
-				updateUI();
-				createSubUpgradeMenu(title, upgList);
-			}
-		};
+		upgradeMenu.addChild(txt);
+		// Each upgrade button – first tap shows description; second tap purchases.
+		btn.down = function (upg, btn) {
+			return function (event) {
+				event.stopPropagation && event.stopPropagation();
+				if (currentUpgradeDesc && currentUpgradeDesc === upg) {
+					if (canPurchaseUpgrade(upgList, upg)) {
+						gameState.money -= upg.cost;
+						upg.purchased = true;
+						upg.action();
+						updateUI();
+						hideUpgradeDesc();
+						createSubUpgradeMenu(title, upgList);
+					}
+				} else {
+					showUpgradeDesc(upg, btn);
+				}
+			};
+		}(upgList[i], btn);
 		subUpgradeItemRefs.push({
 			upgList: upgList,
-			upgrade: upg,
+			upgrade: upgList[i],
 			textObj: txt
 		});
-	});
+	}
 	var backBtn = LK.getAsset('cancelButton', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
@@ -1368,8 +1406,11 @@
 	backBtn.down = function () {
 		createMainUpgradeMenu();
 	};
 	upgradeMenu.addChild(backBtn);
+	upgradeMenu.down = function (event) {
+		hideUpgradeDesc();
+	};
 }
 function canPurchaseUpgrade(upgList, upg) {
 	if (upg.requires) {
 		var needed = upgList.find(function (u) {
@@ -1386,9 +1427,9 @@
 		return false;
 	}
 	return true;
 }
-// Prestige Shop Menu
+// Prestige Shop Menu – similar interaction for prestige upgrades
 function createPrestigeShopMenu() {
 	upgradeMenu.removeChildren();
 	var menuBg = LK.getAsset('rectangle', {
 		width: 1800,
@@ -1418,38 +1459,48 @@
 	shardText.x = menuBg.x;
 	shardText.y = menuBg.y - 900;
 	upgradeMenu.addChild(shardText);
 	var combinedUpgrades = prestigeUpgrades.concat(prestigeDrones);
-	var startY = menuBg.y - 700;
-	combinedUpgrades.forEach(function (upg, i) {
-		var itemContainer = new Container();
-		upgradeMenu.addChild(itemContainer);
+	var colSpacing = 400,
+		rowSpacing = 250;
+	var startX = menuBg.x - colSpacing;
+	for (var i = 0; i < combinedUpgrades.length; i++) {
+		var col = i % 2;
+		var row = Math.floor(i / 2);
 		var btn = LK.getAsset('buy_button', {
 			anchorX: 0.5,
 			anchorY: 0.5
 		});
-		btn.x = menuBg.x;
-		btn.y = startY + i * 250;
-		itemContainer.addChild(btn);
-		var txtStr = upg.name + "\n" + upg.effect + "\nCost: " + upg.cost + " Shards";
+		btn.x = startX + col * colSpacing;
+		btn.y = menuBg.y - 600 + row * rowSpacing;
+		upgradeMenu.addChild(btn);
+		var txtStr = combinedUpgrades[i].name;
 		var txt = new Text2(txtStr, {
-			size: 40,
-			fill: 0x666666,
+			size: 45,
+			fill: 0x000000,
 			align: 'center'
 		});
 		txt.anchor.set(0.5);
 		txt.x = btn.x;
 		txt.y = btn.y;
-		itemContainer.addChild(txt);
-		btn.down = function () {
-			if (gameState.prestigeCurrency >= upg.cost) {
-				gameState.prestigeCurrency -= upg.cost;
-				upg.action();
-				updateUI();
-				createPrestigeShopMenu();
-			}
-		};
-	});
+		upgradeMenu.addChild(txt);
+		btn.down = function (upg, btn) {
+			return function (event) {
+				event.stopPropagation && event.stopPropagation();
+				if (currentUpgradeDesc && currentUpgradeDesc === upg) {
+					if (gameState.prestigeCurrency >= upg.cost) {
+						gameState.prestigeCurrency -= upg.cost;
+						upg.action();
+						updateUI();
+						hideUpgradeDesc();
+						createPrestigeShopMenu();
+					}
+				} else {
+					showUpgradeDesc(upg, btn);
+				}
+			};
+		}(combinedUpgrades[i], btn);
+	}
 	var backBtn = LK.getAsset('cancelButton', {
 		anchorX: 0.5,
 		anchorY: 0.5
 	});
@@ -1458,10 +1509,76 @@
 	backBtn.down = function () {
 		game.removeChild(upgradeMenu);
 	};
 	upgradeMenu.addChild(backBtn);
+	upgradeMenu.down = function (event) {
+		hideUpgradeDesc();
+	};
 }
 /**** 
+* Achievements Menu – two columns of badges and text
+****/ 
+function createAchievementsMenu() {
+	upgradeMenu.removeChildren();
+	var menuBg = LK.getAsset('rectangle', {
+		width: 1800,
+		height: 2200,
+		color: 0x333333,
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	menuBg.x = 2048 / 2;
+	menuBg.y = 2732 / 2 + 50;
+	upgradeMenu.addChild(menuBg);
+	var titleText = new Text2('Achievements', {
+		size: 60,
+		fill: 0xFFFFFF,
+		align: 'center'
+	});
+	titleText.anchor.set(0.5);
+	titleText.x = menuBg.x;
+	titleText.y = menuBg.y - 1000;
+	upgradeMenu.addChild(titleText);
+	var colSpacing = 400,
+		rowSpacing = 200;
+	var startX = menuBg.x - colSpacing / 2;
+	for (var i = 0; i < achievements.length; i++) {
+		var col = i % 2;
+		var row = Math.floor(i / 2);
+		var badge = LK.getAsset('rectangle', {
+			width: 100,
+			height: 100,
+			color: achievements[i].achieved ? 0x00FF00 : 0x555555,
+			anchorX: 0.5,
+			anchorY: 0.5
+		});
+		badge.x = col === 0 ? startX : startX + colSpacing;
+		badge.y = menuBg.y - 600 + row * rowSpacing;
+		upgradeMenu.addChild(badge);
+		var text = new Text2(achievements[i].name + "\n" + achievements[i].description, {
+			size: 35,
+			fill: achievements[i].achieved ? 0xFFFFFF : 0x999999,
+			align: 'left'
+		});
+		text.x = badge.x + 120;
+		text.y = badge.y - 30;
+		upgradeMenu.addChild(text);
+	}
+	var backBtn = LK.getAsset('cancelButton', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	backBtn.x = menuBg.x + 700;
+	backBtn.y = menuBg.y - 1000;
+	backBtn.down = function () {
+		createMainUpgradeMenu();
+	};
+	upgradeMenu.addChild(backBtn);
+	upgradeMenu.down = function (event) {
+		hideUpgradeDesc();
+	};
+}
+/**** 
 * GAME LOOP
 ****/ 
 var quantumSelectTimer = 0;
 var quantumSelectionActive = false;
@@ -1500,9 +1617,9 @@
 			quantumSelectionActive = false;
 			miner.quantumPathActive = false;
 		}
 	}
-	// Achievement check:
+	// Check achievements and pop up if newly unlocked
 	achievements.forEach(function (ach) {
 		if (!ach.achieved && ach.condition()) {
 			ach.achieved = true;
 			var achText = new Text2("Achievement Unlocked: " + ach.name, {
@@ -1521,11 +1638,17 @@
 				}
 			});
 		}
 	});
+	// Hide the prestige shop button until money >= $1B
+	if (gameState.money < 1e9) {
+		prestigeShopButton.visible = false;
+	} else {
+		prestigeShopButton.visible = true;
+	}
 };
 /**** 
-* UI REFRESH & SAVE/LOAD
+* UI Refresh & SAVE/LOAD
 ****/ 
 function updateUI() {
 	moneyDisplay.setText("$" + Math.floor(gameState.money).toLocaleString());
 	moneyDisplay.x = 2048 / 2 - moneyDisplay.width / 2;
@@ -1547,8 +1670,9 @@
 		anchorY: 0.5
 	});
 	currentBackground.x = 2048 / 2;
 	currentBackground.y = 2732 / 2;
+	// Add background at index 0 so all UI elements are above
 	game.addChildAt(currentBackground, 0);
 	miner = new Miner();
 	miner.x = 2048 / 2;
 	miner.y = 2732 / 2;
@@ -1559,6 +1683,6 @@
 startGame();
 game.pauseForQuantumSelection = function () {
 	quantumSelectionActive = true;
 	quantumSelectTimer = 0;
-	// (Stub: Darken screen and highlight ores if desired)
+	// (Stub: darken screen, highlight ores, etc.)
 };
\ No newline at end of file