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

/**** 
* Classes
****/ 
// Collection item icon (for collection view)
var CollectionIcon = Container.expand(function () {
	var self = Container.call(this);
	self.asset = null;
	self.overlayText = null;
	self.setItem = function (itemDef, owned) {
		if (self.asset) {
			self.removeChild(self.asset);
			self.asset = null;
		}
		if (self.overlayText) {
			self.removeChild(self.overlayText);
			self.overlayText = null;
		}
		self.asset = self.attachAsset(itemDef.asset, {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 0.5,
			scaleY: 0.5
		});
		self.asset.alpha = 1;
		if (itemDef.rotation) self.asset.rotation = itemDef.rotation;
		if (itemDef.overlay) {
			self.overlayText = new Text2(itemDef.overlay, {
				size: 60,
				fill: "#222"
			});
			self.overlayText.anchor.set(0.5, 0.5);
			self.addChild(self.overlayText);
		}
		// If not owned, gray out
		if (!owned) self.asset.alpha = 0.25;else self.asset.alpha = 1;
	};
	return self;
});
// Item display class
var ItemDisplay = Container.expand(function () {
	var self = Container.call(this);
	self.asset = null;
	self.overlayText = null;
	self.setItem = function (itemDef) {
		// Remove previous
		if (self.asset) {
			self.removeChild(self.asset);
			self.asset = null;
		}
		if (self.overlayText) {
			self.removeChild(self.overlayText);
			self.overlayText = null;
		}
		// Add shape
		self.asset = self.attachAsset(itemDef.asset, {
			anchorX: 0.5,
			anchorY: 0.5
		});
		self.asset.alpha = 1;
		if (itemDef.rotation) self.asset.rotation = itemDef.rotation;
		// Overlay text if needed
		if (itemDef.overlay) {
			self.overlayText = new Text2(itemDef.overlay, {
				size: 120,
				fill: "#222"
			});
			self.overlayText.anchor.set(0.5, 0.5);
			self.addChild(self.overlayText);
		}
	};
	return self;
});
// Roll button class
var RollButton = Container.expand(function () {
	var self = Container.call(this);
	self.bg = self.attachAsset('roll_btn', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.bg.alpha = 1;
	self.label = new Text2("ROLL", {
		size: 70,
		fill: "#fff"
	});
	self.label.anchor.set(0.5, 0.5);
	self.addChild(self.label);
	// Simple press effect
	self.down = function (x, y, obj) {
		tween(self.bg, {
			scaleX: 0.95,
			scaleY: 0.95
		}, {
			duration: 80,
			easing: tween.cubicIn
		});
	};
	self.up = function (x, y, obj) {
		tween(self.bg, {
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 80,
			easing: tween.cubicOut
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x181818
});

/**** 
* Game Code
****/ 
// Item definitions: id, name, rarity (1 in X), asset, extra (for shape/rotation/text)
// We'll overlay text for "hex"
// We'll overlay text for "star"
// We'll rotate this to look like a triangle
/*
We will use simple shapes for items (boxes, ellipses) and a "roll" button.
Each item will have a unique color and shape for visual distinction.
*/
// --- State --- 
var ITEM_DEFS = [{
	id: 0,
	name: "Water",
	rarity: 2,
	asset: 'item_box'
}, {
	id: 1,
	name: "Stone",
	rarity: 3,
	asset: 'item_ellipse'
}, {
	id: 2,
	name: "Flame",
	rarity: 7,
	asset: 'item_triangle',
	rotation: Math.PI / 4
}, {
	id: 3,
	name: "Breeze",
	rarity: 20,
	asset: 'item_star',
	overlay: "★"
}, {
	id: 4,
	name: "Amber",
	rarity: 50,
	asset: 'item_hex',
	overlay: "⬡"
}, {
	id: 5,
	name: "Moss",
	rarity: 60,
	asset: 'item_moss'
}, {
	id: 6,
	name: "Crystal",
	rarity: 128,
	asset: 'item_crystal'
}, {
	id: 7,
	name: "Sand",
	rarity: 256,
	asset: 'item_sand'
}, {
	id: 8,
	name: "Ash",
	rarity: 512,
	asset: 'item_ash'
}, {
	id: 9,
	name: "Iron",
	rarity: 1000,
	asset: 'item_iron'
}, {
	id: 10,
	name: "Quartz",
	rarity: 2000,
	asset: 'item_quartz'
}, {
	id: 11,
	name: "Smoke",
	rarity: 4000,
	asset: 'item_smoke'
}, {
	id: 12,
	name: "Frost",
	rarity: 8000,
	asset: 'item_frost'
}];
// --- Luck Event State ---
var luckEventActive = false; // true if a luck event is active
var luckEventMultiplier = 1; // 1 (normal), 10, or 25
var luckEventTimeout = null; // timeout id for ending event
var luckEventLabel = null; // Text2 label for event
var luckEventTimerBar = null; // Container for timer bar
var luckEventEndTime = 0; // timestamp when event ends
// --- Level State ---
var level = 1;
var rollsThisLevel = 0;
var rollsTotal = 0;
var levelBar = null;
var levelBarLabel = null;
var levelBarBg = null;
var levelBarFg = null;
var levelLuckMultiplier = 1;
// Helper: Start a random luck event (10x or 25x)
function startLuckEvent(multiplier) {
	// End any existing event
	endLuckEvent();
	luckEventActive = true;
	luckEventMultiplier = multiplier;
	luckEventEndTime = Date.now() + 20000; // 20 seconds from now
	// Show label
	if (!luckEventLabel) {
		luckEventLabel = new Text2("", {
			size: 80,
			fill: 0xFFE066
		});
		luckEventLabel.anchor.set(0.5, 0);
		LK.gui.top.addChild(luckEventLabel);
		// Keep level bar UI in sync (in case of external changes)
		if (levelBarFg && levelBarLabel) {
			var frac = Math.min(1, rollsThisLevel / 100);
			levelBarFg.width = 1200 * frac;
			levelBarLabel.setText("Level " + level + "  (" + rollsThisLevel + "/100)  Luck x" + levelLuckMultiplier * luckEventMultiplier);
		}
	}
	;
	luckEventLabel.visible = true;
	luckEventLabel.setText(multiplier === 25 ? "💎 ULTRA LUCK! 25x odds for 20s!" : "🍀 LUCKY! 10x odds for 20s!");
	luckEventLabel.x = 180;
	luckEventLabel.y = 340;
	// Show timer bar
	if (!luckEventTimerBar) {
		luckEventTimerBar = new Container();
		luckEventTimerBar.bg = LK.getAsset('item_box', {
			anchorX: 0,
			anchorY: 0
		});
		luckEventTimerBar.bg.width = 600;
		luckEventTimerBar.bg.height = 30;
		luckEventTimerBar.bg.alpha = 0.2;
		luckEventTimerBar.addChild(luckEventTimerBar.bg);
		luckEventTimerBar.fg = LK.getAsset('item_box', {
			anchorX: 0,
			anchorY: 0
		});
		luckEventTimerBar.fg.width = 600;
		luckEventTimerBar.fg.height = 30;
		luckEventTimerBar.fg.alpha = 0.7;
		luckEventTimerBar.fg.tint = 0xffe066;
		luckEventTimerBar.addChild(luckEventTimerBar.fg);
		LK.gui.top.addChild(luckEventTimerBar);
	}
	luckEventTimerBar.visible = true;
	luckEventTimerBar.x = 180;
	luckEventTimerBar.y = 440;
	// Set timeout to end event
	luckEventTimeout = LK.setTimeout(function () {
		endLuckEvent();
	}, 20000);
}
// Helper: End the luck event
function endLuckEvent() {
	luckEventActive = false;
	luckEventMultiplier = 1;
	if (luckEventTimeout) {
		LK.clearTimeout(luckEventTimeout);
		luckEventTimeout = null;
	}
	if (luckEventLabel) luckEventLabel.visible = false;
	if (luckEventTimerBar) luckEventTimerBar.visible = false;
}
// Helper: Schedule the next random luck event
function scheduleNextLuckEvent() {
	// Next event in 20-40 seconds
	var nextIn = 20000 + Math.random() * 20000;
	LK.setTimeout(function () {
		// 50% chance for 10x, 50% for 25x
		var multiplier = Math.random() < 0.5 ? 10 : 25;
		startLuckEvent(multiplier);
		// Schedule next event after this one ends
		LK.setTimeout(scheduleNextLuckEvent, 20000);
	}, nextIn);
}
// Start the first luck event timer
scheduleNextLuckEvent();
// Helper: get item by id
function getItemDef(id) {
	for (var i = 0; i < ITEM_DEFS.length; ++i) {
		if (ITEM_DEFS[i].id === id) return ITEM_DEFS[i];
	}
	return null;
}
var collection = storage.collection || []; // array of owned item ids
var lastRollResult = null; // id of last rolled item
var rolling = false; // is animation running
var showCollection = false;
// --- UI Elements ---
// Level bar UI (bottom of screen)
levelBar = new Container();
levelBarBg = LK.getAsset('item_box', {
	anchorX: 0.5,
	anchorY: 0.5
});
levelBarBg.width = 1200;
levelBarBg.height = 60;
levelBarBg.alpha = 0.18;
levelBar.addChild(levelBarBg);
levelBarFg = LK.getAsset('item_box', {
	anchorX: 0.5,
	anchorY: 0.5
});
levelBarFg.width = 1200;
levelBarFg.height = 60;
levelBarFg.alpha = 0.7;
levelBarFg.tint = 0x44e0ff;
levelBar.addChild(levelBarFg);
levelBarLabel = new Text2("", {
	size: 48,
	fill: "#fff"
});
levelBarLabel.anchor.set(0.5, 0.5);
levelBar.addChild(levelBarLabel);
levelBar.x = 2048 / 2;
levelBar.y = 2732 - 100;
game.addChild(levelBar);
// Title
var titleTxt = new Text2("Loot Roll", {
	size: 120,
	fill: "#fff"
});
titleTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(titleTxt);
// Rarity info
var rarityTxt = new Text2("", {
	size: 60,
	fill: "#fff"
});
rarityTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(rarityTxt);
// Main item display
var itemDisplay = new ItemDisplay();
itemDisplay.x = 2048 / 2;
itemDisplay.y = 900;
game.addChild(itemDisplay);
// Item name display (shows the rolled item's name)
var itemNameTxt = new Text2("", {
	size: 90,
	fill: "#fff"
});
itemNameTxt.anchor.set(0.5, 0);
itemNameTxt.x = 2048 / 2;
itemNameTxt.y = itemDisplay.y + 220; // Place below the item display
game.addChild(itemNameTxt);
// Roll button
var rollBtn = new RollButton();
rollBtn.x = 2048 / 2;
rollBtn.y = 1400; // moved up from 1800
game.addChild(rollBtn);
// "Show Collection" button
var showCollBtn = new Container();
var showCollBg = showCollBtn.attachAsset('roll_btn', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.7,
	scaleY: 0.7
});
showCollBg.alpha = 1;
var showCollLabel = new Text2("COLLECTION", {
	size: 48,
	fill: "#fff"
});
showCollLabel.anchor.set(0.5, 0.5);
showCollBtn.addChild(showCollLabel);
showCollBtn.x = 2048 / 2;
showCollBtn.y = 1600; // moved up from 2050
game.addChild(showCollBtn);
// --- Inventory Button and State ---
// inventory is now an array of objects: { id: <itemId>, count: <number> }
var inventory = [];
var inventoryBtn = new Container();
var inventoryBg = inventoryBtn.attachAsset('roll_btn', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.7,
	scaleY: 0.7
});
inventoryBg.alpha = 1;
var inventoryLabel = new Text2("INVENTORY", {
	size: 48,
	fill: "#fff"
});
inventoryLabel.anchor.set(0.5, 0.5);
inventoryBtn.addChild(inventoryLabel);
// Place inventory button under collection button
inventoryBtn.x = 2048 / 2;
inventoryBtn.y = showCollBtn.y + 170; // will now be 1770, higher up
game.addChild(inventoryBtn);
// Collection view overlay
var collectionOverlay = new Container();
collectionOverlay.visible = false;
game.addChild(collectionOverlay);
// "Back" button for collection
var backBtn = new Container();
var backBg = backBtn.attachAsset('roll_btn', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.5,
	scaleY: 0.5
});
backBg.alpha = 1;
var backLabel = new Text2("BACK", {
	size: 48,
	fill: "#fff"
});
backLabel.anchor.set(0.5, 0.5);
backBtn.addChild(backLabel);
backBtn.x = 2048 / 2;
backBtn.y = 2500;
collectionOverlay.addChild(backBtn);
// Collection grid
var collectionIcons = [];
function updateCollectionGrid() {
	// Remove old
	for (var i = 0; i < collectionIcons.length; ++i) collectionOverlay.removeChild(collectionIcons[i]);
	collectionIcons = [];
	// Layout: 3 per row, centered
	var perRow = 3;
	var spacing = 320;
	var startX = 2048 / 2 - spacing;
	var startY = 600;
	for (var i = 0; i < ITEM_DEFS.length; ++i) {
		var item = ITEM_DEFS[i];
		var owned = collection.indexOf(item.id) !== -1;
		var icon = new CollectionIcon();
		icon.setItem(item, owned);
		icon.x = startX + i % perRow * spacing;
		icon.y = startY + Math.floor(i / perRow) * spacing;
		// Name and rarity
		var nameTxt = new Text2(item.name, {
			size: 36,
			fill: "#fff"
		});
		nameTxt.anchor.set(0.5, 0);
		nameTxt.x = 0;
		nameTxt.y = 90;
		icon.addChild(nameTxt);
		var rareTxt = new Text2("1 in " + item.rarity, {
			size: 28,
			fill: "#aaa"
		});
		rareTxt.anchor.set(0.5, 0);
		rareTxt.x = 0;
		rareTxt.y = 130;
		icon.addChild(rareTxt);
		collectionOverlay.addChild(icon);
		collectionIcons.push(icon);
	}
}
// --- Functions ---
function updateMainDisplay() {
	// Show last rolled item or first item
	var itemId = lastRollResult !== null ? lastRollResult : 0;
	var itemDef = getItemDef(itemId);
	itemDisplay.setItem(itemDef);
	// Show name and rarity
	rarityTxt.setText(itemDef.name + "  • 1 in " + itemDef.rarity);
	// Show item name below the item display
	itemNameTxt.setText(itemDef.name);
}
function rollForItem() {
	// Weighted random roll, apply luck event and level multipliers
	var totalWeight = 0;
	for (var i = 0; i < ITEM_DEFS.length; ++i) {
		var rarity = ITEM_DEFS[i].rarity;
		// Apply multiplier: only to rarest item (lowest odds, highest rarity)
		var effectiveRarity = rarity;
		if (i === ITEM_DEFS.length - 1) {
			effectiveRarity = Math.max(1, Math.floor(rarity / (levelLuckMultiplier * luckEventMultiplier)));
		}
		totalWeight += 1 / effectiveRarity;
	}
	var r = Math.random() * totalWeight;
	var acc = 0;
	for (var i = 0; i < ITEM_DEFS.length; ++i) {
		var rarity = ITEM_DEFS[i].rarity;
		var effectiveRarity = rarity;
		if (i === ITEM_DEFS.length - 1) {
			effectiveRarity = Math.max(1, Math.floor(rarity / (levelLuckMultiplier * luckEventMultiplier)));
		}
		acc += 1 / effectiveRarity;
		if (r <= acc) return ITEM_DEFS[i].id;
	}
	return ITEM_DEFS[ITEM_DEFS.length - 1].id;
}
function animateRoll(resultId) {
	rolling = true;
	// Flash through random items, then land on result
	var flashes = 12;
	var flashTime = 60;
	var i = 0;
	function flashNext() {
		if (i < flashes) {
			var fakeId = Math.floor(Math.random() * ITEM_DEFS.length);
			itemDisplay.setItem(getItemDef(fakeId));
			++i;
			LK.setTimeout(flashNext, flashTime);
		} else {
			// Land on result
			itemDisplay.setItem(getItemDef(resultId));
			// Animate scale
			itemDisplay.scale.set(1.2, 1.2);
			tween(itemDisplay, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 200,
				easing: tween.bounceOut
			});
			rolling = false;
			updateMainDisplay();
		}
	}
	flashNext();
}
// --- Event Handlers ---
// Roll button
rollBtn.down = function (x, y, obj) {
	if (rolling || showCollection) return;
	// Call the original RollButton.down (the class method), not this event handler
	if (typeof RollButton.prototype.down === "function") {
		RollButton.prototype.down.call(rollBtn, x, y, obj);
	}
};
rollBtn.up = function (x, y, obj) {
	if (rolling || showCollection) return;
	// Do roll
	var resultId = rollForItem();
	lastRollResult = resultId;
	// Add to collection if new
	if (collection.indexOf(resultId) === -1) {
		collection.push(resultId);
		storage.collection = collection;
	}
	// Add all rolled items to inventory, accumulate up to 64 per item
	var itemDef = getItemDef(resultId);
	if (itemDef) {
		// Find if item already exists in inventory
		var found = false;
		for (var i = 0; i < inventory.length; ++i) {
			if (inventory[i].id === resultId) {
				if (inventory[i].count < 64) {
					inventory[i].count += 1;
				}
				found = true;
				break;
			}
		}
		if (!found) {
			inventory.push({
				id: resultId,
				count: 1
			});
		}
	}
	animateRoll(resultId);
	updateMainDisplay();
	// --- Level logic ---
	rollsTotal += 1;
	rollsThisLevel += 1;
	var leveledUp = false;
	if (rollsThisLevel >= 50) {
		level += 1;
		rollsThisLevel = 0;
		leveledUp = true;
		// Increase level-based luck multiplier
		levelLuckMultiplier += 1;
		// Flash level bar to indicate level up
		LK.effects.flashObject(levelBarFg, 0xffe066, 800);
	}
	// Update level bar UI
	var frac = Math.min(1, rollsThisLevel / 50);
	levelBarFg.width = 1200 * frac;
	levelBarLabel.setText("Level " + level + "  (" + rollsThisLevel + "/50)  Luck x" + levelLuckMultiplier * luckEventMultiplier);
	// Call the original RollButton.up (the class method), not this event handler
	if (typeof RollButton.prototype.up === "function") {
		RollButton.prototype.up.call(rollBtn, x, y, obj);
	}
};
// Show collection
showCollBtn.down = function (x, y, obj) {
	if (rolling) return;
	showCollBg.scaleX = 0.95;
	showCollBg.scaleY = 0.95;
};
showCollBtn.up = function (x, y, obj) {
	if (rolling) return;
	showCollBg.scaleX = 1;
	showCollBg.scaleY = 1;
	showCollection = true;
	collectionOverlay.visible = true;
	updateCollectionGrid();
	// Hide main UI elements when collection is open
	titleTxt.visible = false;
	rarityTxt.visible = false;
	itemDisplay.visible = false;
	itemNameTxt.visible = false;
	rollBtn.visible = false;
	showCollBtn.visible = false;
	inventoryBtn.visible = false;
};
// Back from collection
backBtn.down = function (x, y, obj) {
	backBg.scaleX = 0.95;
	backBg.scaleY = 0.95;
};
backBtn.up = function (x, y, obj) {
	backBg.scaleX = 1;
	backBg.scaleY = 1;
	showCollection = false;
	collectionOverlay.visible = false;
	// Restore main UI elements when leaving collection
	titleTxt.visible = true;
	rarityTxt.visible = true;
	itemDisplay.visible = true;
	itemNameTxt.visible = true;
	rollBtn.visible = true;
	showCollBtn.visible = true;
	inventoryBtn.visible = true;
};
// --- Inventory Overlay ---
var inventoryOverlay = new Container();
inventoryOverlay.visible = false;
game.addChild(inventoryOverlay);
// "Back" button for inventory
var invBackBtn = new Container();
var invBackBg = invBackBtn.attachAsset('roll_btn', {
	anchorX: 0.5,
	anchorY: 0.5,
	scaleX: 0.5,
	scaleY: 0.5
});
invBackBg.alpha = 1;
var invBackLabel = new Text2("BACK", {
	size: 48,
	fill: "#fff"
});
invBackLabel.anchor.set(0.5, 0.5);
invBackBtn.addChild(invBackLabel);
invBackBtn.x = 2048 / 2;
invBackBtn.y = 2500;
inventoryOverlay.addChild(invBackBtn);
// Inventory grid
var inventoryIcons = [];
function updateInventoryGrid() {
	// Remove old
	for (var i = 0; i < inventoryIcons.length; ++i) inventoryOverlay.removeChild(inventoryIcons[i]);
	inventoryIcons = [];
	// Layout: 3 per row, centered
	var perRow = 3;
	var spacing = 320;
	var startX = 2048 / 2 - spacing;
	var startY = 600;
	for (var i = 0; i < inventory.length; ++i) {
		var invEntry = inventory[i];
		var itemId = invEntry.id;
		var itemCount = invEntry.count;
		var item = getItemDef(itemId);
		if (!item) continue;
		var icon = new CollectionIcon();
		icon.setItem(item, true);
		icon.x = startX + i % perRow * spacing;
		icon.y = startY + Math.floor(i / perRow) * spacing;
		// Name and rarity
		var nameTxt = new Text2(item.name, {
			size: 36,
			fill: "#fff"
		});
		nameTxt.anchor.set(0.5, 0);
		nameTxt.x = 0;
		nameTxt.y = 90;
		icon.addChild(nameTxt);
		var rareTxt = new Text2("1 in " + item.rarity, {
			size: 28,
			fill: "#aaa"
		});
		rareTxt.anchor.set(0.5, 0);
		rareTxt.x = 0;
		rareTxt.y = 130;
		icon.addChild(rareTxt);
		// Show count if more than 1
		if (itemCount > 1) {
			var countTxt = new Text2("x" + itemCount, {
				size: 40,
				fill: 0xFFE066
			});
			countTxt.anchor.set(1, 1);
			countTxt.x = 90;
			countTxt.y = 90;
			icon.addChild(countTxt);
		}
		inventoryOverlay.addChild(icon);
		inventoryIcons.push(icon);
	}
}
// Inventory button handlers
inventoryBtn.down = function (x, y, obj) {
	inventoryBg.scaleX = 0.95;
	inventoryBg.scaleY = 0.95;
};
inventoryBtn.up = function (x, y, obj) {
	inventoryBg.scaleX = 1;
	inventoryBg.scaleY = 1;
	if (rolling) return;
	showCollection = false;
	collectionOverlay.visible = false;
	inventoryOverlay.visible = true;
	updateInventoryGrid();
	// Hide main UI elements when inventory is open
	titleTxt.visible = false;
	rarityTxt.visible = false;
	itemDisplay.visible = false;
	itemNameTxt.visible = false;
	rollBtn.visible = false;
	showCollBtn.visible = false;
	inventoryBtn.visible = false;
};
// Inventory back button handlers
invBackBtn.down = function (x, y, obj) {
	invBackBg.scaleX = 0.95;
	invBackBg.scaleY = 0.95;
};
invBackBtn.up = function (x, y, obj) {
	invBackBg.scaleX = 1;
	invBackBg.scaleY = 1;
	inventoryOverlay.visible = false;
	// Restore main UI elements when leaving inventory
	titleTxt.visible = true;
	rarityTxt.visible = true;
	itemDisplay.visible = true;
	itemNameTxt.visible = true;
	rollBtn.visible = true;
	showCollBtn.visible = true;
	inventoryBtn.visible = true;
};
// --- Initial State ---
updateMainDisplay();
collectionOverlay.visible = false;
// --- Level bar initial state ---
rollsThisLevel = 0;
level = 1;
levelLuckMultiplier = 1;
levelBarFg.width = 0;
levelBarLabel.setText("Level 1  (0/50)  Luck x1");
// --- GUI Layout ---
titleTxt.x = 2048 / 2;
titleTxt.y = 40;
rarityTxt.x = 2048 / 2;
rarityTxt.y = 200;
// --- Touch Handling (prevent drag) ---
game.move = function (x, y, obj) {};
game.down = function (x, y, obj) {};
game.up = function (x, y, obj) {};
// --- Game Update ---
game.update = function () {
	// Update luck event timer bar if active
	if (luckEventActive && luckEventTimerBar && luckEventTimerBar.visible) {
		var now = Date.now();
		var total = 20000;
		var left = Math.max(0, luckEventEndTime - now);
		var frac = left / total;
		luckEventTimerBar.fg.width = 600 * frac;
		if (left <= 0) {
			endLuckEvent();
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -195,8 +195,13 @@
 	id: 11,
 	name: "Smoke",
 	rarity: 4000,
 	asset: 'item_smoke'
+}, {
+	id: 12,
+	name: "Frost",
+	rarity: 8000,
+	asset: 'item_frost'
 }];
 // --- Luck Event State ---
 var luckEventActive = false; // true if a luck event is active
 var luckEventMultiplier = 1; // 1 (normal), 10, or 25