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

/**** 
* Classes
****/ 
// Candy class
var Candy = Container.expand(function () {
	var self = Container.call(this);
	// Properties
	self.type = getRandomCandyType();
	self.special = SPECIAL_NONE;
	self.blocker = BLOCKER_NONE;
	self.row = 0;
	self.col = 0;
	self.isFalling = false;
	self.isMatched = false;
	self.isSelected = false;
	self.asset = null;
	// Attach asset
	function updateAsset() {
		if (self.asset) {
			self.removeChild(self.asset);
			self.asset.destroy();
		}
		var assetId = self.type;
		if (self.special === SPECIAL_STRIPED) assetId = 'candy_striped';
		if (self.special === SPECIAL_BOMB) assetId = 'candy_bomb';
		if (self.special === SPECIAL_RAINBOW) assetId = 'candy_rainbow';
		if (self.blocker === BLOCKER_CHOCOLATE) assetId = 'blocker_chocolate';
		if (self.blocker === BLOCKER_ICE) assetId = 'blocker_ice';
		self.asset = self.attachAsset(assetId, {
			anchorX: 0.5,
			anchorY: 0.5
		});
		if (self.isSelected) {
			self.asset.scaleX = 1.15;
			self.asset.scaleY = 1.15;
		} else {
			self.asset.scaleX = 1;
			self.asset.scaleY = 1;
		}
	}
	// Set type
	self.setType = function (type, special, blocker) {
		self.type = type || getRandomCandyType();
		self.special = special || SPECIAL_NONE;
		self.blocker = blocker || BLOCKER_NONE;
		updateAsset();
	};
	// Set selected
	self.setSelected = function (selected) {
		self.isSelected = selected;
		updateAsset();
	};
	// Animate to position
	self.moveTo = function (x, y, duration, onFinish) {
		tween(self, {
			x: x,
			y: y
		}, {
			duration: duration || 200,
			easing: tween.easeInOut,
			onFinish: onFinish
		});
	};
	// Destroy
	self.destroyCandy = function () {
		if (self.asset) {
			self.removeChild(self.asset);
			self.asset.destroy();
			self.asset = null;
		}
		self.destroy();
	};
	// Init
	updateAsset();
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x222244
});

/**** 
* Game Code
****/ 
// Fallback shapes for missing tracker icons (V/P/G/E/L/T)
// Tracker icons (64x64) for each mechanical part
// purple T-junction
// gray locked pipe
// green elbow
// red gauge
// orange pump
// blue valve
//{2.1}
// Music and sounds
// UI assets
// Blocker assets
// Candy assets
// Prism button asset sized for large UI button (500x160 in use, so use 500x160 for best quality)
// Candy and blocker assets sized to fit CELL_SIZE (200x200) for main board
// Candy types
// Music
// Sounds
// Blockers
// Special candies
// Candy shapes/colors
// Board data
var CANDY_TYPES = ['candy_red', 'candy_green', 'candy_blue', 'candy_yellow', 'candy_purple', 'candy_orange'];
// Special types
var SPECIAL_NONE = 0;
var SPECIAL_STRIPED = 1;
var SPECIAL_BOMB = 2;
var SPECIAL_RAINBOW = 3;
// Blocker types
var BLOCKER_NONE = 0;
var BLOCKER_CHOCOLATE = 1;
var BLOCKER_ICE = 2;
// Board size
var BOARD_COLS = 7;
var BOARD_ROWS = 9;
var CELL_SIZE = 200;
var BOARD_OFFSET_X = Math.floor((2048 - BOARD_COLS * CELL_SIZE) / 2);
var BOARD_OFFSET_Y = 300;
// Helper: get random candy type
function getRandomCandyType() {
	return CANDY_TYPES[Math.floor(Math.random() * CANDY_TYPES.length)];
}
// Helper: get random int
function randInt(a, b) {
	return a + Math.floor(Math.random() * (b - a + 1));
}
var board = [];
var candies = [];
var selectedCandy = null;
var swapping = false;
var animating = false;
// --- Level Objective System ---
// Objective types: 1) Collect Targets, 2) Clear Obstacles, 3) Rescue Items
var OBJECTIVE_COLLECT = 1;
var OBJECTIVE_CLEAR = 2;
var OBJECTIVE_RESCUE = 3;
// Mechanical asset mapping for objectives and icons
var OBJECTIVE_ICONS = {
	valve: 'icon_valve_blue',
	pump: 'icon_pump_orange',
	gauge: 'icon_gauge_red',
	elbow: 'icon_elbow_green',
	locked: 'icon_locked_pipe',
	tjunction: 'icon_tjunction_purple',
	fallback: {
		valve: 'fallback_icon_V',
		pump: 'fallback_icon_P',
		gauge: 'fallback_icon_G',
		elbow: 'fallback_icon_E',
		locked: 'fallback_icon_L',
		tjunction: 'fallback_icon_T'
	}
};
// Per-level objectives (mechanical theme, all asset-linked)
var levelObjectives = [
// Level 1: Collect 15 valves (blue)
[{
	type: OBJECTIVE_COLLECT,
	mech: 'valve',
	asset: 'valve_blue',
	count: 15
}],
// Level 2: Collect 12 pumps (orange)
[{
	type: OBJECTIVE_COLLECT,
	mech: 'pump',
	asset: 'pump_orange',
	count: 12
}],
// Level 3: Collect 10 gauges (red) and 10 elbows (green)
[{
	type: OBJECTIVE_COLLECT,
	mech: 'gauge',
	asset: 'gauge_red',
	count: 10
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'elbow',
	asset: 'elbow_green',
	count: 10
}],
// Level 4: Clear 8 locked pipes (gray), collect 8 T-junctions (purple)
[{
	type: OBJECTIVE_CLEAR,
	mech: 'locked',
	asset: 'tile_locked',
	count: 8
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'tjunction',
	asset: 'tjunction_purple',
	count: 8
}],
// Level 5: Collect 10 valves, 10 pumps, 10 gauges
[{
	type: OBJECTIVE_COLLECT,
	mech: 'valve',
	asset: 'valve_blue',
	count: 10
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'pump',
	asset: 'pump_orange',
	count: 10
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'gauge',
	asset: 'gauge_red',
	count: 10
}],
// Level 6: Clear 12 locked pipes, collect 8 elbows
[{
	type: OBJECTIVE_CLEAR,
	mech: 'locked',
	asset: 'tile_locked',
	count: 12
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'elbow',
	asset: 'elbow_green',
	count: 8
}],
// Level 7: Collect 8 T-junctions, clear 8 locked pipes
[{
	type: OBJECTIVE_COLLECT,
	mech: 'tjunction',
	asset: 'tjunction_purple',
	count: 8
}, {
	type: OBJECTIVE_CLEAR,
	mech: 'locked',
	asset: 'tile_locked',
	count: 8
}],
// Level 8: Collect 10 of each part (valve, pump, gauge, elbow, t-junction)
[{
	type: OBJECTIVE_COLLECT,
	mech: 'valve',
	asset: 'valve_blue',
	count: 10
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'pump',
	asset: 'pump_orange',
	count: 10
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'gauge',
	asset: 'gauge_red',
	count: 10
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'elbow',
	asset: 'elbow_green',
	count: 10
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'tjunction',
	asset: 'tjunction_purple',
	count: 10
}],
// Level 9: Clear 15 locked pipes, collect 5 of each part
[{
	type: OBJECTIVE_CLEAR,
	mech: 'locked',
	asset: 'tile_locked',
	count: 15
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'valve',
	asset: 'valve_blue',
	count: 5
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'pump',
	asset: 'pump_orange',
	count: 5
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'gauge',
	asset: 'gauge_red',
	count: 5
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'elbow',
	asset: 'elbow_green',
	count: 5
}, {
	type: OBJECTIVE_COLLECT,
	mech: 'tjunction',
	asset: 'tjunction_purple',
	count: 5
}]
// ...repeat or randomize for higher levels
];
// For levels > 10, cycle or randomize objectives for demo
function getObjectivesForLevel(level) {
	if (level < levelObjectives.length) return levelObjectives[level];
	// For higher levels, mix and increase counts
	var base = levelObjectives[level % levelObjectives.length];
	var newObj = [];
	for (var i = 0; i < base.length; ++i) {
		var o = {};
		for (var k in base[i]) o[k] = base[i][k];
		o.count = Math.ceil(o.count * (1 + level / 20));
		newObj.push(o);
	}
	return newObj;
}
// Track progress for current objectives
var currentObjectives = [];
var currentObjectiveProgress = [];
// Progress panel UI
var progressPanel = new Container();
LK.gui.top.addChild(progressPanel);
progressPanel.x = 0;
progressPanel.y = 350;
progressPanel.visible = false;
// Process tracker panel (shows number of tasks performed and left, links to assets)
var processTrackerPanel = new Container();
LK.gui.top.addChild(processTrackerPanel);
processTrackerPanel.x = 0;
processTrackerPanel.y = 520;
processTrackerPanel.visible = false;
// Star bonus UI
var starPanel = new Container();
LK.gui.top.addChild(starPanel);
starPanel.x = 0;
starPanel.y = 420;
starPanel.visible = false;
var starIcons = [];
for (var i = 0; i < 3; ++i) {
	var star = LK.getAsset('candy_rainbow', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 80 * i,
		y: 0,
		width: 60,
		height: 60,
		alpha: 0.5
	});
	starPanel.addChild(star);
	starIcons.push(star);
}
// Helper: update progress panel
function updateProgressPanel() {
	// Remove old children
	while (progressPanel.children && progressPanel.children.length > 0) {
		var ch = progressPanel.children.pop();
		ch.destroy && ch.destroy();
	}
	// For each objective, show icon, progress, and animation if completed
	for (var i = 0; i < currentObjectives.length; ++i) {
		var obj = currentObjectives[i];
		var iconId = null;
		// Use mechanical icon mapping, fallback to shape if missing
		if (OBJECTIVE_ICONS[obj.mech]) {
			iconId = OBJECTIVE_ICONS[obj.mech];
		} else if (OBJECTIVE_ICONS.fallback[obj.mech]) {
			iconId = OBJECTIVE_ICONS.fallback[obj.mech];
		} else {
			iconId = OBJECTIVE_ICONS.fallback.valve; // fallback to V
		}
		var icon = LK.getAsset(iconId, {
			anchorX: 0.5,
			anchorY: 0.5,
			x: 80 + i * 320,
			y: 0,
			width: 90,
			height: 90
		});
		progressPanel.addChild(icon);
		var txt = new Text2('', {
			size: 60,
			fill: "#fff"
		});
		txt.anchor.set(0, 0.5);
		txt.x = 140 + i * 320;
		txt.y = 0;
		var val = currentObjectiveProgress[i];
		var goal = obj.count;
		txt.setText(val + " / " + goal);
		progressPanel.addChild(txt);
		// If completed, flash icon
		if (val >= goal) {
			LK.effects.flashObject(icon, 0x00ff00, 600);
		}
	}
}
// --- Process Tracker Panel: show number of tasks performed and left, link to assets ---
while (processTrackerPanel.children && processTrackerPanel.children.length > 0) {
	var ch = processTrackerPanel.children.pop();
	ch.destroy && ch.destroy();
}
// Count total and completed tasks
var totalTasks = currentObjectives.length;
var completedTasks = 0;
for (var i = 0; i < currentObjectives.length; ++i) {
	if (currentObjectiveProgress[i] >= currentObjectives[i].count) completedTasks++;
}
// Show summary text
var summaryTxt = new Text2("Tasks: " + completedTasks + " / " + totalTasks, {
	size: 54,
	fill: "#fff"
});
summaryTxt.anchor.set(0, 0.5);
summaryTxt.x = 0;
summaryTxt.y = 0;
processTrackerPanel.addChild(summaryTxt);
// For each task, show icon and progress
for (var i = 0; i < currentObjectives.length; ++i) {
	var obj = currentObjectives[i];
	var iconId = null;
	if (obj.type === OBJECTIVE_COLLECT) iconId = OBJECTIVE_ICONS[obj.color];
	if (obj.type === OBJECTIVE_CLEAR) iconId = obj.blocker === BLOCKER_CHOCOLATE ? OBJECTIVE_ICONS.chocolate : OBJECTIVE_ICONS.ice;
	if (obj.type === OBJECTIVE_RESCUE) iconId = OBJECTIVE_ICONS.mechanic;
	var icon = LK.getAsset(iconId, {
		anchorX: 0.5,
		anchorY: 0.5,
		x: 220 + i * 320,
		y: 0,
		width: 70,
		height: 70
	});
	processTrackerPanel.addChild(icon);
	var txt = new Text2(currentObjectiveProgress[i] + " / " + obj.count, {
		size: 44,
		fill: "#fff"
	});
	txt.anchor.set(0, 0.5);
	txt.x = 260 + i * 320;
	txt.y = 0;
	processTrackerPanel.addChild(txt);
	// If completed, flash icon
	if (currentObjectiveProgress[i] >= obj.count) {
		LK.effects.flashObject(icon, 0x00ff00, 600);
	}
}
// Show/hide process tracker panel based on game state
processTrackerPanel.visible = progressPanel.visible;
// Helper: update star panel
function updateStarPanel() {
	var percent = movesLeft / levels[currentLevel].moves;
	for (var i = 0; i < 3; ++i) {
		starIcons[i].alpha = 0.3;
	}
	if (percent > 0.5) {
		starIcons[0].alpha = 1;
		starIcons[1].alpha = 1;
		starIcons[2].alpha = 1;
	} else if (percent > 0.25) {
		starIcons[0].alpha = 1;
		starIcons[1].alpha = 1;
	} else if (percent > 0) {
		starIcons[0].alpha = 1;
	}
}
// Helper: check if all objectives are complete
function allObjectivesComplete() {
	for (var i = 0; i < currentObjectives.length; ++i) {
		if (currentObjectiveProgress[i] < currentObjectives[i].count) return false;
	}
	return true;
}
// --- Timed Bombs and Conveyor Belts (mechanics) ---
var timedBombs = []; // {candy, movesLeft}
var conveyorActive = false;
// Add a bomb to a random candy (for demo, add on level 4+)
function addTimedBomb() {
	var candidates = [];
	for (var i = 0; i < candies.length; ++i) {
		var c = candies[i];
		if (c.blocker === BLOCKER_NONE && c.special === SPECIAL_NONE) candidates.push(c);
	}
	if (candidates.length > 0) {
		var c = candidates[randInt(0, candidates.length - 1)];
		c.special = SPECIAL_BOMB;
		c.setType(c.type, SPECIAL_BOMB, c.blocker);
		timedBombs.push({
			candy: c,
			movesLeft: 3
		});
	}
}
// Conveyor: shift all candies right by 1 (for demo, level 6+)
function shiftConveyor() {
	for (var row = 0; row < BOARD_ROWS; ++row) {
		var last = board[row][BOARD_COLS - 1];
		for (var col = BOARD_COLS - 1; col > 0; --col) {
			board[row][col] = board[row][col - 1];
			board[row][col].col = col;
			board[row][col].moveTo(col * CELL_SIZE + CELL_SIZE / 2, row * CELL_SIZE + CELL_SIZE / 2, 180);
		}
		board[row][0] = last;
		last.col = 0;
		last.moveTo(0 * CELL_SIZE + CELL_SIZE / 2, row * CELL_SIZE + CELL_SIZE / 2, 180);
	}
}
// --- Per-level winCondition helpers ---
// Returns true if all blockers (chocolate/ice) are cleared from the board
function allBlockersCleared() {
	for (var row = 0; row < BOARD_ROWS; ++row) {
		for (var col = 0; col < BOARD_COLS; ++col) {
			var c = board[row][col];
			// Only count blockers that are visible and not matched
			if (c && c.visible !== false && c.isMatched !== true && (c.blocker === BLOCKER_CHOCOLATE || c.blocker === BLOCKER_ICE)) {
				// For ice, also check if it's not just cracked (must be fully removed)
				if (c.blocker === BLOCKER_ICE && !c._iceCracked) {
					return false;
				}
				if (c.blocker === BLOCKER_CHOCOLATE) {
					return false;
				}
			}
		}
	}
	return true;
}
// Returns true if all candies are cleared (for e.g. 'explode all boxes' levels)
function allBoxesCleared() {
	for (var row = 0; row < BOARD_ROWS; ++row) {
		for (var col = 0; col < BOARD_COLS; ++col) {
			var c = board[row][col];
			// If any visible, non-matched, non-blocker candy remains, not cleared
			if (c && c.visible !== false && c.isMatched !== true && c.blocker === BLOCKER_NONE) {
				return false;
			}
		}
	}
	return true;
}
// Example: fun feature - birds that must reach the bottom and be freed
// Returns true if all birds are at the bottom row and visible
function allBirdsFreed() {
	for (var i = 0; i < candies.length; ++i) {
		var c = candies[i];
		if (c.isBird && c.row !== BOARD_ROWS - 1) {
			return false;
		}
	}
	return true;
}
// --- Level definitions: 100 levels, each with unique win condition and fixed moves ---
// Level 1 is the easiest, level 100 is the hardest
var levels = [];
// Moves curve: tuned for difficulty and level progression
// Level 1-2: very easy, more moves; 3-5: easy; 6-10: normal; 11-20: moderate; 21-30: challenging; 31-50: hard; 51-100: expert
var movesCurve = [25, 22,
// 1-2: very easy
18, 17, 16,
// 3-5: easy
15, 15, 14, 14, 13,
// 6-10: normal
13, 13, 12, 12, 12, 11, 11, 11, 11, 11,
// 11-20: moderate
10, 10, 10, 10, 10, 9, 9, 9, 9, 9,
// 21-30: challenging
8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
// 31-40: hard
7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
// 41-50: hard
6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
// 51-60: expert
6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
// 61-70: expert
5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
// 71-80: expert
5, 5, 5, 5, 5, 5, 5, 5, 5, 5 // 81-90: expert
];
// Fill up to 100 levels with 5 moves for 91-100
while (movesCurve.length < 100) movesCurve.push(5);
for (var i = 0; i < 100; ++i) {
	var level = {};
	// Difficulty curve: more blockers, less moves, higher targets as level increases
	if (i === 0) {
		// Level 1: Easiest, no blockers
		level.moves = movesCurve[i];
		level.target = 400;
		level.blockers = [];
		level.description = "Explode all boxes!\nClear the board to win.\nNo blockers.";
	} else if (i === 1) {
		// Level 2: Chocolate row
		level.moves = movesCurve[i];
		level.target = 600;
		level.blockers = [{
			row: 4,
			type: BLOCKER_CHOCOLATE
		}];
		level.description = "Clear all chocolate!\nRemove every blocker to win.";
	} else if (i === 2) {
		// Level 3: Ice at bottom
		level.moves = movesCurve[i];
		level.target = 800;
		level.blockers = [{
			row: 7,
			type: BLOCKER_ICE
		}, {
			row: 8,
			type: BLOCKER_ICE
		}];
		level.description = "Break all the ice!\nClear every blocker to win.";
	} else if (i === 3) {
		// Level 4: Zig-zag blockers
		level.moves = movesCurve[i];
		level.target = 1000;
		level.blockers = [{
			row: 2,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 3,
			type: BLOCKER_ICE
		}, {
			row: 4,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 5,
			type: BLOCKER_ICE
		}];
		level.description = "Clear all blockers!\nZig-zag pattern challenge.";
	} else if (i === 4) {
		// Level 5: Score challenge
		level.moves = movesCurve[i];
		level.target = 1400;
		level.blockers = [{
			row: 2,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 3,
			type: BLOCKER_ICE
		}, {
			row: 4,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 5,
			type: BLOCKER_ICE
		}, {
			row: 6,
			type: BLOCKER_CHOCOLATE
		}];
		level.description = "Score challenge!\nReach the target score to win.";
	} else if (i === 5) {
		// Level 6: Cross/diamond blockers
		level.moves = movesCurve[i];
		level.target = 1700;
		level.blockers = [{
			row: 0,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 4,
			type: BLOCKER_ICE
		}, {
			row: 8,
			type: BLOCKER_CHOCOLATE
		}];
		level.description = "Break all blockers!\nCross and diamond pattern.";
	} else if (i === 6) {
		// Level 7: U-shape blockers
		level.moves = movesCurve[i];
		level.target = 1900;
		level.blockers = [{
			row: 0,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 8,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 4,
			type: BLOCKER_ICE
		}, {
			row: 7,
			type: BLOCKER_ICE
		}];
		level.description = "Clear all blockers!\nU-shape at the bottom.";
	} else if (i === 7) {
		// Level 8: Vertical stripe blockers
		level.moves = movesCurve[i];
		level.target = 2100;
		level.blockers = [{
			row: 1,
			type: BLOCKER_ICE
		}, {
			row: 3,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 5,
			type: BLOCKER_ICE
		}, {
			row: 7,
			type: BLOCKER_CHOCOLATE
		}];
		level.description = "Clear all blockers!\nVertical stripe in the center.";
	} else if (i === 8) {
		// Level 9: Spiral blockers
		level.moves = movesCurve[i];
		level.target = 2400;
		level.blockers = [{
			row: 0,
			type: BLOCKER_ICE
		}, {
			row: 1,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 2,
			type: BLOCKER_ICE
		}, {
			row: 3,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 4,
			type: BLOCKER_ICE
		}, {
			row: 5,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 6,
			type: BLOCKER_ICE
		}, {
			row: 7,
			type: BLOCKER_CHOCOLATE
		}];
		level.description = "Clear all blockers!\nSpiral pattern.";
	} else if (i === 9) {
		// Level 10: Boss
		level.moves = movesCurve[i];
		level.target = 3000;
		level.blockers = [{
			row: 0,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 1,
			type: BLOCKER_ICE
		}, {
			row: 2,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 3,
			type: BLOCKER_ICE
		}, {
			row: 4,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 5,
			type: BLOCKER_ICE
		}, {
			row: 6,
			type: BLOCKER_CHOCOLATE
		}, {
			row: 7,
			type: BLOCKER_ICE
		}, {
			row: 8,
			type: BLOCKER_CHOCOLATE
		}];
		level.description = "Boss Level!\nReach the target score to win.";
	} else {
		// Levels 11-100: Increase difficulty, alternate win conditions, more blockers, less moves, higher targets
		var base = levels[i % 10];
		// Use movesCurve for main progression, but allow special bumps below
		level.moves = movesCurve[i];
		level.target = base.target + 400 * i;
		// Copy blockers and add more for higher levels
		level.blockers = [];
		for (var b = 0; b < base.blockers.length; ++b) {
			level.blockers.push({
				row: base.blockers[b].row,
				type: base.blockers[b].type
			});
		}
		// Every 10th level: add extra blockers
		if (i > 0 && i % 10 === 0) {
			for (var r = 0; r < 3; ++r) {
				level.blockers.push({
					row: r,
					type: i % 20 === 0 ? BLOCKER_CHOCOLATE : BLOCKER_ICE
				});
			}
			level.description = "Super challenge!\nExtra blockers added.\nCan you win?";
			// Give a small moves bump for every 10th level
			level.moves += 1;
		} else if (i > 0 && i % 5 === 0) {
			// Every 5th level: Boss, higher target
			level.target += 1000;
			level.description = "Boss Level!\nBlockers everywhere.\nShow your skills!";
			// Give a moves bump for boss
			level.moves += 1;
		} else if (i > 0 && i % 25 === 0) {
			// Every 25th: Mega Boss
			level.target += 2000;
			level.moves = Math.max(5, level.moves - 2);
			level.description = "Mega Boss!\nThe ultimate test.\nGood luck!";
		} else if (i > 0 && i % 3 === 0) {
			// Every 3rd: add random blocker row
			var extraRow = randInt(0, BOARD_ROWS - 1);
			var extraType = Math.random() < 0.5 ? BLOCKER_CHOCOLATE : BLOCKER_ICE;
			level.blockers.push({
				row: extraRow,
				type: extraType
			});
			level.description = "Surprise row!\nExtra blockers appear.\nKeep matching!";
		} else if (i > 0 && i % 7 === 0) {
			// Every 7th: add two random blockers
			for (var r = 0; r < 2; ++r) {
				var randRow = randInt(0, BOARD_ROWS - 1);
				var randType = Math.random() < 0.5 ? BLOCKER_CHOCOLATE : BLOCKER_ICE;
				level.blockers.push({
					row: randRow,
					type: randType
				});
			}
			level.description = "Blocker surprise!\nRandom blockers added.\nStay sharp!";
		} else if (i > 0 && i % 13 === 0) {
			// Every 13th: Lucky, more moves, higher target
			level.moves += 3;
			level.target += 1500;
			level.description = "Lucky Level!\nMore moves, higher target.\nGo for it!";
		} else {
			// Default: inherit description
			level.description = base.description;
		}
		// No winCondition property at all
	}
	levels.push(level);
}
// Always start at level 1 for every player/session
storage.currentLevel = 0;
var currentLevel = 0;
var movesLeft = typeof storage.movesLeft !== "undefined" ? storage.movesLeft : levels[currentLevel].moves;
var targetScore = levels[currentLevel].target;
var score = typeof storage.score !== "undefined" ? storage.score : 0;
var scoreTxt = null;
var movesTxt = null;
var targetTxt = null;
var boardContainer = null;
var matchQueue = [];
var refillQueue = [];
var isProcessing = false;
// --- Start Screen Overlay ---
var startScreen = new Container();
LK.gui.center.addChild(startScreen);
startScreen.visible = true;
// Background overlay (semi-transparent)
var startBg = LK.getAsset('blocker_ice', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 0,
	y: 0,
	width: 1200,
	height: 1600,
	alpha: 0.85
});
startScreen.addChild(startBg);
// Game title
var titleTxt = new Text2('Candy Match Saga', {
	size: 180,
	fill: "#fff"
});
titleTxt.anchor.set(0.5, 0.5);
titleTxt.x = 0;
titleTxt.y = -400;
startScreen.addChild(titleTxt);
// Subtitle
var subtitleTxt = new Text2('Match candies, beat levels, have fun!', {
	size: 70,
	fill: "#fff"
});
subtitleTxt.anchor.set(0.5, 0.5);
subtitleTxt.x = 0;
subtitleTxt.y = -250;
startScreen.addChild(subtitleTxt);
// Play button
var playBtn = new Container();
var playBtnBg = LK.getAsset('start_button', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 0,
	y: 0,
	width: 500,
	height: 160
});
playBtn.addChild(playBtnBg);
// Removed the 'Start' label from the start screen play button
playBtn.anchorX = 0.5;
playBtn.anchorY = 0.5;
playBtn.x = 0;
playBtn.y = 200;
playBtn.interactive = true;
playBtn.buttonMode = true;
playBtn.down = function (x, y, obj) {
	startScreen.visible = false;
	// Show game UI
	scoreTxt.visible = true;
	movesTxt.visible = true;
	targetTxt.visible = true;
	levelTopRightTxt.visible = true;
	bonusPanel.visible = true;
	boardContainer.visible = true;
	if (levelTxt) levelTxt.visible = true;
	if (prevLevelBtn) prevLevelBtn.visible = true;
	if (resetBtn) resetBtn.visible = true;
	// Removed reference to nextLevelBtn which is not defined
	if (window.levelDescTxt) window.levelDescTxt.visible = true;
	if (counterPanel) counterPanel.visible = true;
};
startScreen.addChild(playBtn);
// Hide game UI until play is pressed
// GUI
scoreTxt = new Text2('Score: 0', {
	size: 90,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
scoreTxt.visible = false;
movesTxt = new Text2('Moves: 20', {
	size: 70,
	fill: "#fff"
});
movesTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(movesTxt);
movesTxt.y = 110;
movesTxt.visible = false;
targetTxt = new Text2('Target: 5000', {
	size: 60,
	fill: "#fff"
});
targetTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(targetTxt);
targetTxt.y = 180;
targetTxt.visible = false;
// Add level label to top right
var levelTopRightTxt = new Text2('Level: 1', {
	size: 70,
	fill: "#fff"
});
levelTopRightTxt.anchor.set(1, 0);
LK.gui.topRight.addChild(levelTopRightTxt);
levelTopRightTxt.x = 0;
levelTopRightTxt.y = 0;
levelTopRightTxt.visible = false;
// --- Bonus UI ---
var bonusPanel = new Container();
LK.gui.top.addChild(bonusPanel);
bonusPanel.x = 0;
bonusPanel.y = 250;
bonusPanel.visible = false;
// Track which bonus is selected (null, "bomb", etc)
var selectedBonus = null;
// Bomb bonus button
var bombBtnBg = LK.getAsset('candy_bomb', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 120,
	y: 0,
	width: 140,
	height: 140
});
bonusPanel.addChild(bombBtnBg);
var bombBtnLabel = new Text2('Bomb', {
	size: 48,
	fill: "#fff"
});
bombBtnLabel.anchor.set(0.5, 0);
bombBtnLabel.x = 120;
bombBtnLabel.y = 80;
bonusPanel.addChild(bombBtnLabel);
bombBtnBg.interactive = true;
bombBtnBg.buttonMode = true;
bombBtnBg.down = function (x, y, obj) {
	selectedBonus = selectedBonus === "bomb" ? null : "bomb";
	// Visual feedback
	bombBtnBg.scaleX = bombBtnBg.scaleY = selectedBonus === "bomb" ? 1.2 : 1.0;
};
// Optionally, add more bonuses here in the future
// Board container
boardContainer = new Container();
game.addChild(boardContainer);
boardContainer.x = BOARD_OFFSET_X;
boardContainer.y = BOARD_OFFSET_Y;
boardContainer.visible = false;
// Initialize board
function initBoard() {
	// Clear previous
	for (var i = 0; i < candies.length; ++i) {
		if (candies[i]) candies[i].destroyCandy();
	}
	candies = [];
	board = [];
	// Initialize objectives for this level
	currentObjectives = getObjectivesForLevel(currentLevel);
	currentObjectiveProgress = [];
	for (var i = 0; i < currentObjectives.length; ++i) currentObjectiveProgress[i] = 0;
	progressPanel.visible = true;
	updateProgressPanel();
	starPanel.visible = true;
	updateStarPanel();
	updateCounterPanel();
	timedBombs = [];
	conveyorActive = currentLevel >= 5; // Enable conveyor on level 6+
	for (var row = 0; row < BOARD_ROWS; ++row) {
		board[row] = [];
		for (var col = 0; col < BOARD_COLS; ++col) {
			var candy = new Candy();
			candy.row = row;
			candy.col = col;
			candy.x = col * CELL_SIZE + CELL_SIZE / 2;
			candy.y = row * CELL_SIZE + CELL_SIZE / 2;
			// Unique blocker logic per level
			var blockers = levels[currentLevel].blockers;
			var placedBlocker = false;
			// Guarantee at least one open path per row for passability
			// We'll use a random openCol for each row, but keep it consistent for the row
			var openCol = -1;
			if (blockers.length > 0) {
				// For each row, pick a random open column (or center for symmetry)
				openCol = Math.floor(BOARD_COLS / 2);
				// For more variety, you could use: openCol = randInt(0, BOARD_COLS - 1);
			}
			for (var b = 0; b < blockers.length; ++b) {
				if (row === blockers[b].row) {
					// Level-specific patterns
					// Level 5/10: checkerboard, but add a diagonal line of blockers for extra challenge
					if ((currentLevel === 4 || currentLevel === 9) && ((row + col) % 2 === 0 || row === col)) {
						// Always leave openCol open
						if (col !== openCol) {
							candy.setType(candy.type, SPECIAL_NONE, blockers[b].type);
							placedBlocker = true;
						}
					}
					// Level 6: cross pattern, but add a diamond shape in the center
					else if (currentLevel === 5 && (col === Math.floor(BOARD_COLS / 2) || row === Math.floor(BOARD_ROWS / 2) || Math.abs(col - Math.floor(BOARD_COLS / 2)) === Math.abs(row - Math.floor(BOARD_ROWS / 2)) && Math.abs(col - Math.floor(BOARD_COLS / 2)) <= 2)) {
						if (col !== openCol) {
							candy.setType(candy.type, SPECIAL_NONE, blockers[b].type);
							placedBlocker = true;
						}
					}
					// Level 7: chocolate on sides, ice in center, but add blockers in a U shape at the bottom
					else if (currentLevel === 6 && ((row === 0 || row === BOARD_ROWS - 1) && blockers[b].type === BLOCKER_CHOCOLATE && (col === 0 || col === BOARD_COLS - 1) || row >= BOARD_ROWS - 3 && (col === 0 || col === BOARD_COLS - 1 || row === BOARD_ROWS - 1 && col > 0 && col < BOARD_COLS - 1))) {
						if (col !== openCol) {
							candy.setType(candy.type, SPECIAL_NONE, blockers[b].type);
							placedBlocker = true;
						}
					}
					// Level 8: alternating rows, but add a vertical stripe in the center
					else if (currentLevel === 7 && (row % 2 === b % 2 || col === Math.floor(BOARD_COLS / 2))) {
						if (col !== openCol) {
							candy.setType(candy.type, SPECIAL_NONE, blockers[b].type);
							placedBlocker = true;
						}
					}
					// Level 9: spiral (simulate with increasing rows), but add a spiral arm from the bottom right
					else if (currentLevel === 8 && (col >= row && col < BOARD_COLS - row || row + col === BOARD_COLS + BOARD_ROWS - 2 - row && row > BOARD_ROWS / 2)) {
						if (col !== openCol) {
							candy.setType(candy.type, SPECIAL_NONE, blockers[b].type);
							placedBlocker = true;
						}
					}
					// Level 10: nearly every row blocked, but leave a zig-zag path open
					else if (currentLevel === 9 && !((row + col) % 2 === 1 && col !== 0 && col !== BOARD_COLS - 1)) {
						if (col !== openCol) {
							candy.setType(candy.type, SPECIAL_NONE, blockers[b].type);
							placedBlocker = true;
						}
					}
					// Default: alternate blockers on even/odd columns for variety, but add a random chance for double blockers
					else if (!placedBlocker && (blockers[b].type === BLOCKER_CHOCOLATE && col % 2 === 0 || blockers[b].type === BLOCKER_ICE && col % 2 === 1 || Math.random() < 0.07)) {
						if (col !== openCol) {
							candy.setType(candy.type, SPECIAL_NONE, blockers[b].type);
							placedBlocker = true;
						}
					}
				}
			}
			// Always add candies to the top of the boardContainer to ensure correct z-ordering
			boardContainer.addChild(candy);
			if (boardContainer.children && boardContainer.children.length > 1) {
				// Move the newly added candy to the top (end of children array)
				boardContainer.removeChild(candy);
				boardContainer.addChild(candy);
			}
			candies.push(candy);
			board[row][col] = candy;
		}
	}
	// Remove initial matches
	removeInitialMatches();
	// Ensure no 3-in-a-row/col at board creation
	for (var row = 0; row < BOARD_ROWS; ++row) {
		//{aU.1}
		for (var col = 0; col < BOARD_COLS; ++col) {
			//{aU.2}
			// Only check non-blockers
			if (board[row][col].blocker !== BLOCKER_NONE) continue; //{aU.3}
			var forbiddenTypes = {};
			// Check left
			if (col >= 2 && board[row][col - 1].type === board[row][col - 2].type) {
				forbiddenTypes[board[row][col - 1].type] = true; //{aU.4}
			}
			// Check up
			if (row >= 2 && board[row - 1][col].type === board[row - 2][col].type) {
				forbiddenTypes[board[row - 1][col].type] = true; //{aU.5}
			}
			// If current type is forbidden, reroll
			var tries = 0;
			while (forbiddenTypes[board[row][col].type] && tries < 10) {
				//{aU.6}
				var newType = getRandomCandyType();
				// Avoid forbidden types
				while (forbiddenTypes[newType] && tries < 10) {
					newType = getRandomCandyType();
					tries++;
				}
				board[row][col].setType(newType);
				tries++;
			}
		} //{aU.7}
	} //{aU.8}
}
// Remove initial matches to avoid auto-matches at start
function removeInitialMatches() {
	for (var row = 0; row < BOARD_ROWS; ++row) {
		for (var col = 0; col < BOARD_COLS; ++col) {
			// Only check non-blockers
			if (board[row][col].blocker !== BLOCKER_NONE) continue; //{aW.1}
			var changed = false;
			var tries = 0;
			do {
				var type = board[row][col].type;
				var hasRowMatch = col >= 2 && board[row][col - 1].type === type && board[row][col - 2].type === type;
				var hasColMatch = row >= 2 && board[row - 1][col].type === type && board[row - 2][col].type === type;
				if (hasRowMatch || hasColMatch) {
					var forbiddenTypes = {};
					if (hasRowMatch) forbiddenTypes[board[row][col - 1].type] = true;
					if (hasColMatch) forbiddenTypes[board[row - 1][col].type] = true;
					var newType = getRandomCandyType();
					while ((forbiddenTypes[newType] || newType === type) && tries < 10) {
						newType = getRandomCandyType();
						tries++;
					}
					board[row][col].setType(newType);
					changed = true;
				} else {
					changed = false;
				}
				tries++;
			} while (changed && tries < 10);
		}
	}
}
// Get candy at board position
function getCandyAt(row, col) {
	if (row < 0 || row >= BOARD_ROWS || col < 0 || col >= BOARD_COLS) return null;
	return board[row][col];
}
// Swap two candies
function swapCandies(c1, c2, cb) {
	swapping = true;
	var r1 = c1.row,
		c1c = c1.col,
		r2 = c2.row,
		c2c = c2.col;
	// Swap in board
	board[r1][c1c] = c2;
	board[r2][c2c] = c1;
	// Swap row/col
	var tmpRow = c1.row,
		tmpCol = c1.col;
	c1.row = r2;
	c1.col = c2c;
	c2.row = r1;
	c2.col = c1c;
	// Ensure board and candies are in sync after swap
	board[c1.row][c1.col] = c1;
	board[c2.row][c2.col] = c2;
	// Animate
	var done = 0;
	c1.moveTo(c1.col * CELL_SIZE + CELL_SIZE / 2, c1.row * CELL_SIZE + CELL_SIZE / 2, 180, function () {
		done++;
		if (done === 2 && cb) {
			swapping = false;
			cb();
		}
	});
	c2.moveTo(c2.col * CELL_SIZE + CELL_SIZE / 2, c2.row * CELL_SIZE + CELL_SIZE / 2, 180, function () {
		done++;
		if (done === 2 && cb) {
			swapping = false;
			cb();
		}
	});
	LK.getSound('swap').play();
}
// Check if two candies are adjacent
function areAdjacent(c1, c2) {
	var dr = Math.abs(c1.row - c2.row);
	var dc = Math.abs(c1.col - c2.col);
	// Allow swapping in all four directions (up, down, left, right)
	return dr === 1 && dc === 0 || dr === 0 && dc === 1;
}
// Find all matches on the board, including special candy creation
function findMatches() {
	var matches = [];
	var matchGroups = []; // For special candy creation
	// Horizontal
	for (var row = 0; row < BOARD_ROWS; ++row) {
		var count = 1;
		var startCol = 0;
		for (var col = 1; col < BOARD_COLS; ++col) {
			var prev = board[row][col - 1];
			var curr = board[row][col];
			if (curr.type === prev.type && curr.blocker === BLOCKER_NONE && prev.blocker === BLOCKER_NONE) {
				count++;
			} else {
				if (count >= 3) {
					var group = [];
					for (var k = 0; k < count; ++k) {
						group.push(board[row][col - 1 - k]);
					}
					matches = matches.concat(group);
					matchGroups.push(group);
				}
				count = 1;
				startCol = col;
			}
		}
		if (count >= 3) {
			var group = [];
			for (var k = 0; k < count; ++k) {
				group.push(board[row][BOARD_COLS - 1 - k]);
			}
			matches = matches.concat(group);
			matchGroups.push(group);
		}
	}
	// Vertical
	for (var col = 0; col < BOARD_COLS; ++col) {
		var count = 1;
		var startRow = 0;
		for (var row = 1; row < BOARD_ROWS; ++row) {
			var prev = board[row - 1][col];
			var curr = board[row][col];
			if (curr.type === prev.type && curr.blocker === BLOCKER_NONE && prev.blocker === BLOCKER_NONE) {
				count++;
			} else {
				if (count >= 3) {
					var group = [];
					for (var k = 0; k < count; ++k) {
						group.push(board[row - 1 - k][col]);
					}
					matches = matches.concat(group);
					matchGroups.push(group);
				}
				count = 1;
				startRow = row;
			}
		}
		if (count >= 3) {
			var group = [];
			for (var k = 0; k < count; ++k) {
				group.push(board[BOARD_ROWS - 1 - k][col]);
			}
			matches = matches.concat(group);
			matchGroups.push(group);
		}
	}
	// Detect 2x2 square matches and mark for bomb
	for (var row = 0; row < BOARD_ROWS - 1; ++row) {
		for (var col = 0; col < BOARD_COLS - 1; ++col) {
			var c1 = board[row][col];
			var c2 = board[row][col + 1];
			var c3 = board[row + 1][col];
			var c4 = board[row + 1][col + 1];
			if (c1.type === c2.type && c1.type === c3.type && c1.type === c4.type && c1.blocker === BLOCKER_NONE && c2.blocker === BLOCKER_NONE && c3.blocker === BLOCKER_NONE && c4.blocker === BLOCKER_NONE) {
				// Only add if not already in a match group for this square
				var alreadyMatched = false;
				for (var mg = 0; mg < matchGroups.length; ++mg) {
					var g = matchGroups[mg];
					if (g.indexOf(c1) !== -1 && g.indexOf(c2) !== -1 && g.indexOf(c3) !== -1 && g.indexOf(c4) !== -1) {
						alreadyMatched = true;
						break;
					}
				}
				if (!alreadyMatched) {
					// Mark the top-left as bomb, others as normal
					c1.special = SPECIAL_BOMB;
					c1.setType(c1.type, SPECIAL_BOMB, c1.blocker);
					// Remove c1 from matches so it is not destroyed, but destroy the other 3
					var group = [c2, c3, c4];
					matches = matches.concat(group);
					matchGroups.push([c1, c2, c3, c4]);
					// Store a flag for c1 to trigger a special 2x2 bomb explosion in removeMatches
					c1._pendingSquareBomb = true;
				}
			}
		}
	}
	// Remove duplicates
	var unique = [];
	for (var i = 0; i < matches.length; ++i) {
		if (unique.indexOf(matches[i]) === -1) unique.push(matches[i]);
	}
	// Mark special candy creation (striped, bomb, rainbow)
	for (var g = 0; g < matchGroups.length; ++g) {
		var group = matchGroups[g];
		if (group.length === 4) {
			// Striped candy: horizontal or vertical
			var isHorizontal = group[0].row === group[1].row;
			var specialCandy = group[1]; // Place special at second in group
			if (specialCandy.special === SPECIAL_NONE) {
				specialCandy.special = SPECIAL_STRIPED;
				specialCandy.setType(specialCandy.type, SPECIAL_STRIPED, specialCandy.blocker);
				// Mark orientation for correct effect
				specialCandy._stripedOrientation = isHorizontal ? "horizontal" : "vertical";
			}
			// Remove the special candy from the group so it is not destroyed
			for (var i = 0; i < group.length; ++i) {
				if (group[i] === specialCandy) {
					group.splice(i, 1);
					break;
				}
			}
		}
		if (group.length === 5) {
			// Color bomb (rainbow) only for exactly 5-in-a-row
			var specialCandy = group[Math.floor(group.length / 2)]; // Place in the middle
			if (specialCandy.special === SPECIAL_NONE) {
				specialCandy.special = SPECIAL_RAINBOW;
				specialCandy.setType(specialCandy.type, SPECIAL_RAINBOW, specialCandy.blocker);
			}
			// Remove the special candy from the group so it is not destroyed
			for (var i = 0; i < group.length; ++i) {
				if (group[i] === specialCandy) {
					group.splice(i, 1);
					break;
				}
			}
		}
	}
	// Bomb candy for T or L shape
	// Find intersections of horizontal and vertical matches
	for (var i = 0; i < matchGroups.length; ++i) {
		var groupA = matchGroups[i];
		if (groupA.length !== 3) continue;
		for (var j = i + 1; j < matchGroups.length; ++j) {
			var groupB = matchGroups[j];
			if (groupB.length !== 3) continue;
			// Check for intersection
			for (var a = 0; a < 3; ++a) {
				for (var b = 0; b < 3; ++b) {
					if (groupA[a] === groupB[b]) {
						// Place bomb at intersection
						var bombCandy = groupA[a];
						if (bombCandy.special === SPECIAL_NONE) {
							bombCandy.special = SPECIAL_BOMB;
							bombCandy.setType(bombCandy.type, SPECIAL_BOMB, bombCandy.blocker);
						}
					}
				}
			}
		}
	}
	return unique;
}
// Remove matched candies and animate, including special candy activation and blockers
function removeMatches(matches, cb) {
	if (!matches || matches.length === 0) {
		if (cb) cb();
		return;
	}
	LK.getSound('match').play();
	var done = 0;
	var toRemove = [];
	// Activate special candies in matches
	for (var i = 0; i < matches.length; ++i) {
		var candy = matches[i];
		if (candy.special === SPECIAL_STRIPED) {
			// Striped candy: clear row if created from horizontal match, column if from vertical
			// Determine orientation by checking if the special was created from a horizontal or vertical match
			// We'll use a property set during match detection, or fallback to random if not set (legacy)
			var isHorizontal = false;
			if (typeof candy._stripedOrientation !== "undefined") {
				isHorizontal = candy._stripedOrientation === "horizontal";
			} else {
				// Fallback: random (legacy, but should not happen with new match logic)
				isHorizontal = Math.random() < 0.5;
			}
			if (isHorizontal) {
				// Clear row
				for (var c = 0; c < BOARD_COLS; ++c) {
					var target = board[candy.row][c];
					if (toRemove.indexOf(target) === -1) toRemove.push(target);
				}
			} else {
				// Clear column
				for (var r = 0; r < BOARD_ROWS; ++r) {
					var target = board[r][candy.col];
					if (toRemove.indexOf(target) === -1) toRemove.push(target);
				}
			}
		} else if (candy.special === SPECIAL_RAINBOW) {
			// Clear all candies of a random type on board
			var colorType = getRandomCandyType();
			for (var r = 0; r < BOARD_ROWS; ++r) {
				for (var c = 0; c < BOARD_COLS; ++c) {
					var target = board[r][c];
					if (target.type === colorType && toRemove.indexOf(target) === -1) toRemove.push(target);
				}
			}
		} else if (candy.special === SPECIAL_BOMB) {
			// If this bomb was created by a 2x2 square match, do a shine and destroy 8 neighbors
			if (candy._pendingSquareBomb) {
				// Shine effect: flash the bomb candy
				LK.effects.flashObject(candy, 0xffff00, 400);
				// Destroy 8 neighbors (not self)
				for (var dr = -1; dr <= 1; ++dr) {
					for (var dc = -1; dc <= 1; ++dc) {
						var rr = candy.row + dr,
							cc = candy.col + dc;
						if (rr >= 0 && rr < BOARD_ROWS && cc >= 0 && cc < BOARD_COLS) {
							if (rr === candy.row && cc === candy.col) continue; // skip self
							var target = board[rr][cc];
							if (toRemove.indexOf(target) === -1) toRemove.push(target);
						}
					}
				}
				// Remove the flag so it doesn't trigger again
				delete candy._pendingSquareBomb;
			} else {
				// Default bomb: Clear 3x3 area (including self)
				for (var dr = -1; dr <= 1; ++dr) {
					for (var dc = -1; dc <= 1; ++dc) {
						var rr = candy.row + dr,
							cc = candy.col + dc;
						if (rr >= 0 && rr < BOARD_ROWS && cc >= 0 && cc < BOARD_COLS) {
							var target = board[rr][cc];
							if (toRemove.indexOf(target) === -1) toRemove.push(target);
						}
					}
				}
			}
		} else {
			if (toRemove.indexOf(candy) === -1) toRemove.push(candy);
		}
	}
	// Remove blockers if matched
	for (var i = 0; i < toRemove.length; ++i) {
		var candy = toRemove[i];
		if (candy.blocker === BLOCKER_CHOCOLATE) {
			// Remove chocolate in one match
			candy.blocker = BLOCKER_NONE;
			candy.setType(candy.type, candy.special, BLOCKER_NONE);
			continue;
		}
		if (candy.blocker === BLOCKER_ICE) {
			// Remove ice in two matches: first match cracks, second removes
			if (!candy._iceCracked) {
				candy._iceCracked = true;
				// Tint or visually indicate cracked ice (optional)
				candy.setType(candy.type, candy.special, BLOCKER_ICE);
				// Do not mark as matched, so it remains for the next match
				continue;
			} else {
				candy.blocker = BLOCKER_NONE;
				delete candy._iceCracked;
				candy.setType(candy.type, candy.special, BLOCKER_NONE);
				// Now allow to be matched and removed
				continue;
			}
		}
		candy.isMatched = true;
		// Animate scale down and fade
		tween(candy, {
			scaleX: 0,
			scaleY: 0,
			alpha: 0
		}, {
			duration: 200,
			easing: tween.easeIn,
			onFinish: function (candy) {
				return function () {
					if (candy.asset) {
						candy.removeChild(candy.asset);
						candy.asset.destroy();
						candy.asset = null;
					}
					candy.visible = false;
					done++;
					if (done === toRemove.length && cb) cb();
				};
			}(candy)
		});
		// Add score
		score += 100;
	}
}
// Drop candies to fill empty spaces
function dropCandies(cb) {
	var moved = false;
	for (var col = 0; col < BOARD_COLS; ++col) {
		for (var row = BOARD_ROWS - 1; row >= 0; --row) {
			var candy = board[row][col];
			if (!candy.isMatched && candy.visible) continue;
			// Find nearest above
			for (var above = row - 1; above >= 0; --above) {
				var aboveCandy = board[above][col];
				if (!aboveCandy.isMatched && aboveCandy.visible) {
					// Only move if the target cell is not already occupied by a visible, non-matched candy
					if (!board[row][col].visible || board[row][col].isMatched) {
						// Only allow candies to fall if there is a candy above (do not close the top of the column)
						board[row][col] = aboveCandy;
						aboveCandy.row = row;
						aboveCandy.col = col;
						aboveCandy.moveTo(col * CELL_SIZE + CELL_SIZE / 2, row * CELL_SIZE + CELL_SIZE / 2, 180);
						board[above][col] = candy;
						moved = true;
					}
					break;
				}
			}
			// Do not close the top of the column: if there is no candy above, leave the cell empty for refillBoard
		}
	}
	if (cb) LK.setTimeout(cb, moved ? 200 : 0);
}
// Fill empty spaces with new candies
function refillBoard(cb) {
	var created = false;
	for (var col = 0; col < BOARD_COLS; ++col) {
		for (var row = 0; row < BOARD_ROWS; ++row) {
			var candy = board[row][col];
			if (!candy.isMatched && candy.visible) continue;
			// Only create a new candy if the cell is not already occupied by a visible, non-matched candy
			if (!board[row][col].visible || board[row][col].isMatched) {
				// Create new candy
				var newCandy = new Candy();
				newCandy.row = row;
				newCandy.col = col;
				newCandy.x = col * CELL_SIZE + CELL_SIZE / 2;
				newCandy.y = -CELL_SIZE + CELL_SIZE / 2;
				// Always add new candies to the top of the boardContainer to ensure correct z-ordering
				boardContainer.addChild(newCandy);
				if (boardContainer.children && boardContainer.children.length > 1) {
					// Move the newly added candy to the top (end of children array)
					boardContainer.removeChild(newCandy);
					boardContainer.addChild(newCandy);
				}
				candies.push(newCandy);
				board[row][col] = newCandy;
				newCandy.moveTo(col * CELL_SIZE + CELL_SIZE / 2, row * CELL_SIZE + CELL_SIZE / 2, 220);
				created = true;
			}
		}
	}
	if (cb) LK.setTimeout(cb, created ? 220 : 0);
}
// Remove matched candies from board
function clearMatchedCandies() {
	for (var row = 0; row < BOARD_ROWS; ++row) {
		for (var col = 0; col < BOARD_COLS; ++col) {
			var candy = board[row][col];
			if (candy.isMatched) {
				if (candy._iceCracked) {
					delete candy._iceCracked;
				}
				candy.destroyCandy();
				// Remove from candies array
				for (var i = 0; i < candies.length; ++i) {
					if (candies[i] === candy) {
						candies.splice(i, 1);
						break;
					}
				}
				// Replace with dummy invisible candy for drop logic
				var dummy = new Candy();
				dummy.row = row;
				dummy.col = col;
				dummy.visible = false;
				board[row][col] = dummy;
				// Always add dummy candies to the bottom of the boardContainer so they don't cover visible candies
				boardContainer.addChildAt(dummy, 0);
			}
		}
	}
}
// Deselect all candies
function deselectAll() {
	for (var i = 0; i < candies.length; ++i) {
		candies[i].setSelected(false);
	}
	selectedCandy = null;
}
// Handle user tap
function handleTap(x, y, obj) {
	if (swapping || animating || isProcessing) return;
	// Convert to board coordinates, ensuring correct offset and boundaries
	// Remove any offset miscalculations: boardContainer.x/y is already set, so local is relative to grid origin
	// For touch/click, always use the event's x/y relative to the game, then subtract boardContainer.x/y to get local grid coordinates
	var localX = x - boardContainer.x;
	var localY = y - boardContainer.y;
	// Clamp localX/localY to be within the grid area
	if (localX < 0 || localY < 0) return;
	var col = Math.floor(localX / CELL_SIZE);
	var row = Math.floor(localY / CELL_SIZE);
	// Clamp to grid bounds
	// Boundary check
	if (col < 0 || col >= BOARD_COLS || row < 0 || row >= BOARD_ROWS) return;
	var candy = board[row][col];
	// Debug: Draw a highlight rectangle over the selected cell
	if (typeof handleTap._debugRect !== "undefined" && handleTap._debugRect) {
		boardContainer.removeChild(handleTap._debugRect);
		handleTap._debugRect.destroy();
		handleTap._debugRect = null;
	}
	var debugRect = LK.getAsset('blocker_ice', {
		anchorX: 0,
		anchorY: 0,
		x: col * CELL_SIZE,
		y: row * CELL_SIZE,
		width: CELL_SIZE,
		height: CELL_SIZE,
		alpha: 0.25
	});
	// Insert debugRect at the bottom of boardContainer's children so it doesn't block candy input
	if (boardContainer.children && boardContainer.children.length > 0) {
		boardContainer.addChildAt(debugRect, 0);
	} else {
		boardContainer.addChild(debugRect);
	}
	handleTap._debugRect = debugRect;
	if (!candy || candy.blocker !== BLOCKER_NONE) return;
	// --- Bonus: Bomb usage ---
	if (selectedBonus === "bomb") {
		// Use bomb on this cell: destroy up to 12 tiles in a cross pattern (center, 4 orthogonal, 4 diagonal, and 3 more in a star/cross)
		var toRemove = [];
		var bombPattern = [[0, 0],
		// center
		[-1, 0], [1, 0], [0, -1], [0, 1],
		// orthogonal
		[-1, -1], [-1, 1], [1, -1], [1, 1],
		// diagonal
		[-2, 0], [2, 0], [0, -2], [0, 2] // extended cross
		];
		for (var i = 0; i < bombPattern.length; ++i) {
			var dr = bombPattern[i][0];
			var dc = bombPattern[i][1];
			var rr = row + dr;
			var cc = col + dc;
			if (rr >= 0 && rr < BOARD_ROWS && cc >= 0 && cc < BOARD_COLS) {
				var target = board[rr][cc];
				if (target && target.blocker === BLOCKER_NONE && toRemove.indexOf(target) === -1) {
					toRemove.push(target);
				}
			}
		}
		removeMatches(toRemove, function () {
			clearMatchedCandies();
			dropCandies(function () {
				refillBoard(function () {
					processMatches();
				});
			});
		});
		movesLeft--; // Using a bonus still costs a move
		if (movesLeft < 0) movesLeft = 0;
		if (movesLeft < 0) movesLeft = 0;
		updateGUI();
		selectedBonus = null;
		bombBtnBg.scaleX = bombBtnBg.scaleY = 1.0;
		deselectAll();
		return;
	}
	// If nothing selected, select this candy
	if (!selectedCandy) {
		deselectAll();
		selectedCandy = candy;
		candy.setSelected(true);
		return;
	}
	// If clicking the same candy, deselect
	if (selectedCandy === candy) {
		deselectAll();
		return;
	}
	// If adjacent, try to swap
	if (areAdjacent(selectedCandy, candy)) {
		swapping = true;
		selectedCandy.setSelected(false);
		candy.setSelected(false);
		// Lock input during animation
		var c1 = selectedCandy;
		var c2 = candy;
		deselectAll();
		swapCandies(c1, c2, function () {
			// Special candy swap logic
			var specialActivated = false;
			// Rainbow (color bomb) swap
			if (c1.special === SPECIAL_RAINBOW || c2.special === SPECIAL_RAINBOW) {
				var colorType = c1.special === SPECIAL_RAINBOW ? c2.type : c1.type;
				var toRemove = [];
				for (var r = 0; r < BOARD_ROWS; ++r) {
					for (var c = 0; c < BOARD_COLS; ++c) {
						var target = board[r][c];
						if (target.type === colorType) toRemove.push(target);
					}
				}
				removeMatches(toRemove, function () {
					clearMatchedCandies();
					dropCandies(function () {
						refillBoard(function () {
							processMatches();
						});
					});
				});
				movesLeft--;
				if (movesLeft < 0) movesLeft = 0;
				updateGUI();
				swapping = false;
				specialActivated = true;
			}
			// Striped + striped: clear row and col
			else if (c1.special === SPECIAL_STRIPED && c2.special === SPECIAL_STRIPED) {
				var toRemove = [];
				for (var c = 0; c < BOARD_COLS; ++c) {
					var t1 = board[c1.row][c];
					if (toRemove.indexOf(t1) === -1) toRemove.push(t1);
				}
				for (var r = 0; r < BOARD_ROWS; ++r) {
					var t2 = board[r][c2.col];
					if (toRemove.indexOf(t2) === -1) toRemove.push(t2);
				}
				removeMatches(toRemove, function () {
					clearMatchedCandies();
					dropCandies(function () {
						refillBoard(function () {
							processMatches();
						});
					});
				});
				movesLeft--;
				if (movesLeft < 0) movesLeft = 0;
				updateGUI();
				swapping = false;
				specialActivated = true;
			}
			// Bomb + any: clear 3x3 around both
			else if (c1.special === SPECIAL_BOMB || c2.special === SPECIAL_BOMB) {
				var toRemove = [];
				var bombCandies = [c1, c2];
				for (var b = 0; b < 2; ++b) {
					if (bombCandies[b].special === SPECIAL_BOMB) {
						for (var dr = -1; dr <= 1; ++dr) {
							for (var dc = -1; dc <= 1; ++dc) {
								var rr = bombCandies[b].row + dr,
									cc = bombCandies[b].col + dc;
								if (rr >= 0 && rr < BOARD_ROWS && cc >= 0 && cc < BOARD_COLS) {
									var target = board[rr][cc];
									if (toRemove.indexOf(target) === -1) toRemove.push(target);
								}
							}
						}
					}
				}
				removeMatches(toRemove, function () {
					clearMatchedCandies();
					dropCandies(function () {
						refillBoard(function () {
							processMatches();
						});
					});
				});
				movesLeft--;
				if (movesLeft < 0) movesLeft = 0;
				updateGUI();
				swapping = false;
				specialActivated = true;
			}
			if (!specialActivated) {
				// After swap, check for matches
				var matches = findMatches();
				if (matches.length > 0) {
					processMatches();
					movesLeft--;
					if (movesLeft < 0) movesLeft = 0;
					updateGUI();
					swapping = false;
				} else {
					// No match, swap back
					LK.getSound('fail').play();
					// Animate a quick shake for both candies
					var origX1 = c1.col * CELL_SIZE + CELL_SIZE / 2;
					var origY1 = c1.row * CELL_SIZE + CELL_SIZE / 2;
					var origX2 = c2.col * CELL_SIZE + CELL_SIZE / 2;
					var origY2 = c2.row * CELL_SIZE + CELL_SIZE / 2;
					tween(c1, {
						x: origX1 + 20
					}, {
						duration: 60,
						onFinish: function onFinish() {
							tween(c1, {
								x: origX1
							}, {
								duration: 60
							});
						}
					});
					tween(c2, {
						x: origX2 - 20
					}, {
						duration: 60,
						onFinish: function onFinish() {
							tween(c2, {
								x: origX2
							}, {
								duration: 60
							});
						}
					});
					// Actually swap back the candies to their original positions in the board and update their row/col
					swapCandies(c1, c2, function () {
						swapping = false;
						deselectAll();
						// Re-select the original candy for user feedback
						selectedCandy = c1;
						c1.setSelected(true);
					});
					movesLeft--;
					if (movesLeft < 0) movesLeft = 0;
					updateGUI();
				}
			}
		});
		return;
	}
	// Not adjacent, select new candy
	deselectAll();
	selectedCandy = candy;
	candy.setSelected(true);
}
// Process matches and refill
function processMatches() {
	isProcessing = true;
	var matches = findMatches();
	if (matches.length === 0) {
		swapping = false;
		isProcessing = false;
		deselectAll();
		// Save progress after move
		storage.currentLevel = currentLevel;
		storage.score = score;
		storage.movesLeft = movesLeft;
		checkGameEnd();
		return;
	}
	removeMatches(matches, function () {
		clearMatchedCandies();
		dropCandies(function () {
			refillBoard(function () {
				// --- Update objective progress after all matches/refills ---
				for (var i = 0; i < currentObjectives.length; ++i) {
					var obj = currentObjectives[i];
					if (obj.type === OBJECTIVE_COLLECT) {
						// Count how many of this mechanical asset were matched (destroyed) this turn
						var matched = 0;
						for (var j = 0; j < matches.length; ++j) {
							if (matches[j].type === obj.asset && matches[j].isMatched) {
								matched++;
							} else if (matches[j].isMatched && matches[j].type && obj.asset && matches[j].type !== obj.asset) {
								// Error log if a match is counted for the wrong asset
								console.error("Objective mismatch: tried to count " + matches[j].type + " for " + obj.asset);
							}
						}
						currentObjectiveProgress[i] += matched;
					} else if (obj.type === OBJECTIVE_CLEAR) {
						// Count blockers destroyed (locked pipes)
						var cleared = 0;
						for (var j = 0; j < matches.length; ++j) {
							if (matches[j].blocker === BLOCKER_CHOCOLATE && obj.asset === 'tile_locked' && matches[j].isMatched) {
								cleared++;
							} else if (matches[j].blocker === BLOCKER_ICE && obj.asset === 'tile_locked' && matches[j].isMatched) {
								// If you want to count ice as locked, add here, else skip
							} else if (matches[j].isMatched && obj.asset && matches[j].blocker !== BLOCKER_CHOCOLATE && matches[j].blocker !== BLOCKER_ICE) {
								// Error log if a match is counted for the wrong asset
								console.error("Objective mismatch: tried to count blocker " + matches[j].blocker + " for " + obj.asset);
							}
						}
						currentObjectiveProgress[i] += cleared;
					} else if (obj.type === OBJECTIVE_RESCUE) {
						// Not used in mechanical theme, but left for extensibility
						var rescued = 0;
						for (var j = 0; j < matches.length; ++j) {
							if (matches[j].special === SPECIAL_BOMB && matches[j].row === BOARD_ROWS - 1 && matches[j].isMatched) rescued++;
						}
						currentObjectiveProgress[i] += rescued;
					}
					// Clamp to max
					if (currentObjectiveProgress[i] > obj.count) currentObjectiveProgress[i] = obj.count;
				}
				updateProgressPanel();
				updateStarPanel();
				updateCounterPanel();
				// --- Timed Bombs: decrement and check for explosion ---
				for (var t = timedBombs.length - 1; t >= 0; --t) {
					timedBombs[t].movesLeft--;
					if (timedBombs[t].movesLeft <= 0) {
						// Bomb explodes: game over
						LK.effects.flashScreen(0xff0000, 1000);
						LK.showGameOver();
						LK.setTimeout(function () {
							// Reset current level: reset score, moves, board
							score = 0;
							// Always reset movesLeft to the initial moves for this level, never negative
							movesLeft = Math.max(0, levels[currentLevel].moves);
							targetScore = levels[currentLevel].target;
							storage.currentLevel = currentLevel;
							storage.score = score;
							storage.movesLeft = movesLeft;
							updateGUI();
							initBoard();
							updateCounterPanel();
						}, 1200); // Wait for game over animation to finish before restarting
						return;
					}
				}
				// --- Conveyor: shift candies if active ---
				if (conveyorActive) {
					shiftConveyor();
				}
				// Chocolate spread: after all moves, if any chocolate exists, spread to adjacent
				var chocolateList = [];
				for (var row = 0; row < BOARD_ROWS; ++row) {
					for (var col = 0; col < BOARD_COLS; ++col) {
						var c = board[row][col];
						if (c.blocker === BLOCKER_CHOCOLATE) chocolateList.push(c);
					}
				}
				if (chocolateList.length > 0) {
					// Try to spread chocolate to adjacent non-blocker, non-special, non-chocolate
					for (var i = 0; i < chocolateList.length; ++i) {
						var c = chocolateList[i];
						var dirs = [[0, 1], [1, 0], [0, -1], [-1, 0]];
						for (var d = 0; d < dirs.length; ++d) {
							var rr = c.row + dirs[d][0],
								cc = c.col + dirs[d][1];
							if (rr >= 0 && rr < BOARD_ROWS && cc >= 0 && cc < BOARD_COLS) {
								var target = board[rr][cc];
								if (target.blocker === BLOCKER_NONE && target.special === SPECIAL_NONE) {
									target.blocker = BLOCKER_CHOCOLATE;
									target.setType(target.type, target.special, BLOCKER_CHOCOLATE);
									break;
								}
							}
						}
					}
				}
				// After all refills, check for new matches
				var newMatches = findMatches();
				if (newMatches.length > 0) {
					processMatches();
				} else {
					swapping = false;
					isProcessing = false;
					deselectAll();
					// Save progress after move
					storage.currentLevel = currentLevel;
					storage.score = score;
					storage.movesLeft = movesLeft;
					// --- Check for win/lose conditions ---
					if (allObjectivesComplete()) {
						// Celebrate: flash screen, animate stars, etc.
						for (var s = 0; s < 3; ++s) {
							if (starIcons[s].alpha === 1) LK.effects.flashObject(starIcons[s], 0xffff00, 800);
						}
						LK.effects.flashScreen(0x00ff00, 1000);
						LK.showYouWin();
						return;
					}
					checkGameEnd();
				}
			});
		});
	});
}
// Update GUI
function updateGUI() {
	scoreTxt.setText('Score: ' + score);
	movesTxt.setText('Moves: ' + movesLeft);
	targetTxt.setText('Target: ' + targetScore);
	// Show "Boss" for every 5th level (level 5, 10, 15, ...)
	var levelNum = currentLevel + 1;
	if (levelNum % 5 === 0) {
		levelTxt.setText('Level: ' + levelNum + ' (Boss!)');
		if (typeof levelTopRightTxt !== "undefined") {
			levelTopRightTxt.setText('Level: ' + levelNum + ' (Boss!)');
		}
	} else {
		levelTxt.setText('Level: ' + levelNum);
		if (typeof levelTopRightTxt !== "undefined") {
			levelTopRightTxt.setText('Level: ' + levelNum);
		}
	}
	// Show level description and pass requirement at the bottom center
	if (!window.levelDescTxt) {
		window.levelDescTxt = new Text2('', {
			size: 60,
			fill: "#fff"
		});
		window.levelDescTxt.anchor.set(0.5, 1);
		LK.gui.bottom.addChild(window.levelDescTxt);
		window.levelDescTxt.y = -100;
		window.levelDescTxt.visible = false;
	}
	// Format description to be 3 lines below each other
	var desc = levels[currentLevel].description || '';
	var descLines = desc.split('\n');
	while (descLines.length < 3) descLines.push('');
	// Show objectives as requirements
	for (var i = 0; i < currentObjectives.length; ++i) {
		var obj = currentObjectives[i];
		if (obj.type === OBJECTIVE_COLLECT) {
			descLines.push('Collect ' + obj.count + ' ' + obj.color + ' gears');
		}
		if (obj.type === OBJECTIVE_CLEAR) descLines.push('Clear ' + obj.count + ' ' + (obj.blocker === BLOCKER_CHOCOLATE ? 'locked pipes' : 'ice'));
		if (obj.type === OBJECTIVE_RESCUE) descLines.push('Rescue ' + obj.count + ' mechanics');
	}
	window.levelDescTxt.setText(descLines.join('\n'));
	updateProgressPanel();
	updateStarPanel();
	updateCounterPanel();
}
// Check for win/lose
function checkGameEnd() {
	// Game over if out of moves and not all objectives complete
	if (movesLeft <= 0) {
		if (allObjectivesComplete()) {
			LK.showYouWin();
		} else {
			LK.showGameOver();
			LK.setTimeout(function () {
				// Reset current level: reset score, moves, board
				score = 0;
				// Always reset movesLeft to the initial moves for this level, never negative
				movesLeft = Math.max(0, levels[currentLevel].moves);
				targetScore = levels[currentLevel].target;
				storage.currentLevel = currentLevel;
				storage.score = score;
				storage.movesLeft = movesLeft;
				updateGUI();
				initBoard();
				updateCounterPanel();
			}, 1200); // Wait for game over animation to finish before restarting
		}
	}
}
// Game event handlers
game.down = function (x, y, obj) {
	// Don't allow tap in top left 100x100
	if (x < 100 && y < 100) return;
	handleTap(x, y, obj);
};
// Drag-to-swap logic
var dragStartCandy = null;
var dragCurrentCandy = null;
var dragActive = false;
// Helper: get candy at pixel position (returns null if not valid)
function getCandyAtPixel(x, y) {
	var localX = x - boardContainer.x;
	var localY = y - boardContainer.y;
	if (localX < 0 || localY < 0) return null;
	var col = Math.floor(localX / CELL_SIZE);
	var row = Math.floor(localY / CELL_SIZE);
	if (col < 0 || col >= BOARD_COLS || row < 0 || row >= BOARD_ROWS) return null;
	return board[row][col];
}
// Override game.down for drag start
game.down = function (x, y, obj) {
	// Don't allow tap in top left 100x100
	if (x < 100 && y < 100) return;
	// If bomb bonus is selected, allow placing bomb anywhere on the board
	if (selectedBonus === "bomb") {
		// Convert to board coordinates
		var localX = x - boardContainer.x;
		var localY = y - boardContainer.y;
		if (localX < 0 || localY < 0) return;
		var col = Math.floor(localX / CELL_SIZE);
		var row = Math.floor(localY / CELL_SIZE);
		if (col < 0 || col >= BOARD_COLS || row < 0 || row >= BOARD_ROWS) return;
		var candy = board[row][col];
		// Only allow bomb on non-blocker
		if (!candy || candy.blocker !== BLOCKER_NONE) return;
		// Use bomb on this cell: destroy up to 12 tiles in a cross pattern (center, 4 orthogonal, 4 diagonal, and 3 more in a star/cross)
		var toRemove = [];
		var bombPattern = [[0, 0], [-1, 0], [1, 0], [0, -1], [0, 1], [-1, -1], [-1, 1], [1, -1], [1, 1], [-2, 0], [2, 0], [0, -2], [0, 2]];
		for (var i = 0; i < bombPattern.length; ++i) {
			var dr = bombPattern[i][0];
			var dc = bombPattern[i][1];
			var rr = row + dr;
			var cc = col + dc;
			if (rr >= 0 && rr < BOARD_ROWS && cc >= 0 && cc < BOARD_COLS) {
				var target = board[rr][cc];
				if (target && target.blocker === BLOCKER_NONE && toRemove.indexOf(target) === -1) {
					toRemove.push(target);
				}
			}
		}
		removeMatches(toRemove, function () {
			clearMatchedCandies();
			dropCandies(function () {
				refillBoard(function () {
					processMatches();
				});
			});
		});
		movesLeft--; // Using a bonus still costs a move
		if (movesLeft < 0) movesLeft = 0;
		updateGUI();
		selectedBonus = null;
		bombBtnBg.scaleX = bombBtnBg.scaleY = 1.0;
		deselectAll();
		return;
	}
	if (swapping || animating || isProcessing) return;
	var candy = getCandyAtPixel(x, y);
	if (!candy || candy.blocker !== BLOCKER_NONE) return;
	dragStartCandy = candy;
	dragCurrentCandy = candy;
	dragActive = true;
	deselectAll();
	candy.setSelected(true);
	selectedCandy = candy;
};
// Drag move handler
game.move = function (x, y, obj) {
	if (!dragActive || swapping || animating || isProcessing) return;
	var candy = getCandyAtPixel(x, y);
	if (!candy || candy.blocker !== BLOCKER_NONE) return;
	if (candy === dragStartCandy) return;
	// Only allow swap with adjacent
	if (areAdjacent(dragStartCandy, candy)) {
		// Lock drag
		dragActive = false;
		dragStartCandy.setSelected(false);
		candy.setSelected(false);
		var c1 = dragStartCandy;
		var c2 = candy;
		deselectAll();
		swapCandies(c1, c2, function () {
			// Special candy swap logic (same as tap)
			var specialActivated = false;
			if (c1.special === SPECIAL_RAINBOW || c2.special === SPECIAL_RAINBOW) {
				var colorType = c1.special === SPECIAL_RAINBOW ? c2.type : c1.type;
				var toRemove = [];
				for (var r = 0; r < BOARD_ROWS; ++r) {
					for (var c = 0; c < BOARD_COLS; ++c) {
						var target = board[r][c];
						if (target.type === colorType) toRemove.push(target);
					}
				}
				removeMatches(toRemove, function () {
					clearMatchedCandies();
					dropCandies(function () {
						refillBoard(function () {
							processMatches();
						});
					});
				});
				movesLeft--;
				if (movesLeft < 0) movesLeft = 0;
				updateGUI();
				swapping = false;
				specialActivated = true;
			} else if (c1.special === SPECIAL_STRIPED && c2.special === SPECIAL_STRIPED) {
				var toRemove = [];
				for (var c = 0; c < BOARD_COLS; ++c) {
					var t1 = board[c1.row][c];
					if (toRemove.indexOf(t1) === -1) toRemove.push(t1);
				}
				for (var r = 0; r < BOARD_ROWS; ++r) {
					var t2 = board[r][c2.col];
					if (toRemove.indexOf(t2) === -1) toRemove.push(t2);
				}
				removeMatches(toRemove, function () {
					clearMatchedCandies();
					dropCandies(function () {
						refillBoard(function () {
							processMatches();
						});
					});
				});
				movesLeft--;
				if (movesLeft < 0) movesLeft = 0;
				updateGUI();
				swapping = false;
				specialActivated = true;
			} else if (c1.special === SPECIAL_BOMB || c2.special === SPECIAL_BOMB) {
				var toRemove = [];
				var bombCandies = [c1, c2];
				for (var b = 0; b < 2; ++b) {
					if (bombCandies[b].special === SPECIAL_BOMB) {
						for (var dr = -1; dr <= 1; ++dr) {
							for (var dc = -1; dc <= 1; ++dc) {
								var rr = bombCandies[b].row + dr,
									cc = bombCandies[b].col + dc;
								if (rr >= 0 && rr < BOARD_ROWS && cc >= 0 && cc < BOARD_COLS) {
									var target = board[rr][cc];
									if (toRemove.indexOf(target) === -1) toRemove.push(target);
								}
							}
						}
					}
				}
				removeMatches(toRemove, function () {
					clearMatchedCandies();
					dropCandies(function () {
						refillBoard(function () {
							processMatches();
						});
					});
				});
				movesLeft--;
				if (movesLeft < 0) movesLeft = 0;
				updateGUI();
				swapping = false;
				specialActivated = true;
			}
			if (!specialActivated) {
				var matches = findMatches();
				if (matches.length > 0) {
					processMatches();
					movesLeft--;
					if (movesLeft < 0) movesLeft = 0;
					updateGUI();
					swapping = false;
				} else {
					// No match, swap back
					LK.getSound('fail').play();
					var origX1 = c1.col * CELL_SIZE + CELL_SIZE / 2;
					var origY1 = c1.row * CELL_SIZE + CELL_SIZE / 2;
					var origX2 = c2.col * CELL_SIZE + CELL_SIZE / 2;
					var origY2 = c2.row * CELL_SIZE + CELL_SIZE / 2;
					tween(c1, {
						x: origX1 + 20
					}, {
						duration: 60,
						onFinish: function onFinish() {
							tween(c1, {
								x: origX1
							}, {
								duration: 60
							});
						}
					});
					tween(c2, {
						x: origX2 - 20
					}, {
						duration: 60,
						onFinish: function onFinish() {
							tween(c2, {
								x: origX2
							}, {
								duration: 60
							});
						}
					});
					// Actually swap back the candies to their original positions in the board and update their row/col
					swapCandies(c1, c2, function () {
						swapping = false;
						deselectAll();
						// Re-select the original candy for user feedback
						selectedCandy = c1;
						c1.setSelected(true);
					});
					movesLeft--;
					if (movesLeft < 0) movesLeft = 0;
					updateGUI();
				}
			}
		});
	}
};
// Drag end handler
game.up = function (x, y, obj) {
	dragActive = false;
	dragStartCandy = null;
	dragCurrentCandy = null;
	// Deselect all if not swapping
	if (!swapping && !animating && !isProcessing) {
		deselectAll();
	}
};
// Game update
game.update = function () {
	// No per-frame logic needed for MVP
};
// Start music
LK.playMusic('bgmusic', {
	fade: {
		start: 0,
		end: 0.7,
		duration: 1000
	}
});
// Level label at bottom left
var levelTxt = new Text2('Level: 1', {
	size: 70,
	fill: "#fff"
});
levelTxt.anchor.set(0, 1);
LK.gui.bottomLeft.addChild(levelTxt);
levelTxt.x = 0;
levelTxt.y = 0;
levelTxt.visible = false;
// Add previous level button at the bottom left (but not in the top left 100x100 area)
var prevLevelBtn = new Text2('Prev', {
	size: 90,
	fill: "#fff"
});
prevLevelBtn.anchor.set(0, 1);
LK.gui.bottomLeft.addChild(prevLevelBtn);
prevLevelBtn.x = 120; // avoid top left menu area
prevLevelBtn.y = 0;
prevLevelBtn.visible = false;
prevLevelBtn.interactive = true;
prevLevelBtn.buttonMode = true;
prevLevelBtn.down = function (x, y, obj) {
	if (currentLevel > 0) {
		currentLevel--;
		score = 0;
		movesLeft = levels[currentLevel].moves;
		targetScore = levels[currentLevel].target;
		// Save progress
		storage.currentLevel = currentLevel;
		storage.score = score;
		storage.movesLeft = movesLeft;
		updateGUI();
		initBoard();
		updateCounterPanel();
	}
};
// Add reset button at the bottom center
var resetBtn = new Text2('Reset', {
	size: 90,
	fill: "#fff"
});
resetBtn.anchor.set(0.5, 1);
LK.gui.bottom.addChild(resetBtn);
resetBtn.y = 0; // flush to bottom
resetBtn.visible = false;
resetBtn.interactive = true;
resetBtn.buttonMode = true;
resetBtn.down = function (x, y, obj) {
	// Reset current level: reset score, moves, board
	score = 0;
	movesLeft = levels[currentLevel].moves;
	targetScore = levels[currentLevel].target;
	// Save progress
	storage.currentLevel = currentLevel;
	storage.score = score;
	storage.movesLeft = movesLeft;
	updateGUI();
	initBoard();
	updateCounterPanel();
};
// --- Counter Panel Below Board ---
// This panel will be centered horizontally, just below the board, and always visible
var counterPanel = new Container();
game.addChild(counterPanel);
// Position: center horizontally, just below the board
counterPanel.x = BOARD_OFFSET_X + BOARD_COLS * CELL_SIZE / 2;
counterPanel.y = BOARD_OFFSET_Y + BOARD_ROWS * CELL_SIZE + 40; // 40px below the board
counterPanel.visible = true;
// Counter text (will be updated in updateCounterPanel)
var counterTxt = new Text2('', {
	size: 80,
	fill: "#fff"
});
counterTxt.anchor.set(0.5, 0);
counterPanel.addChild(counterTxt);
// Helper: update counter panel with current progress
function updateCounterPanel() {
	// Compose a summary of all objectives, each with its asset icon and progress
	// Remove old icons (keep counterTxt as first child)
	while (counterPanel.children.length > 1) {
		var ch = counterPanel.children.pop();
		ch.destroy && ch.destroy();
	}
	// For each objective, show icon and progress
	var summaryArr = [];
	var iconX = -((currentObjectives.length - 1) * 120) / 2; // space icons evenly
	for (var i = 0; i < currentObjectives.length; ++i) {
		var obj = currentObjectives[i];
		var iconId = null;
		if (OBJECTIVE_ICONS[obj.mech]) {
			iconId = OBJECTIVE_ICONS[obj.mech];
		} else if (OBJECTIVE_ICONS.fallback[obj.mech]) {
			iconId = OBJECTIVE_ICONS.fallback[obj.mech];
		} else {
			iconId = OBJECTIVE_ICONS.fallback.valve;
		}
		var icon = LK.getAsset(iconId, {
			anchorX: 0.5,
			anchorY: 0.5,
			x: iconX + i * 120,
			y: 60,
			width: 80,
			height: 80
		});
		counterPanel.addChild(icon);
		// Progress text below icon
		var txt = new Text2(currentObjectiveProgress[i] + " / " + obj.count, {
			size: 48,
			fill: "#fff"
		});
		txt.anchor.set(0.5, 0);
		txt.x = icon.x;
		txt.y = icon.y + 60;
		counterPanel.addChild(txt);
	}
	// Optionally, show a summary at the top (e.g. "Objectives")
	counterTxt.setText("Objectives");
}
// Call updateCounterPanel whenever board is initialized or progress changes
// Start game
initBoard();
updateGUI();
updateCounterPanel();
// If the start screen is hidden (game started), show UI
if (typeof startScreen !== "undefined" && !startScreen.visible) {
	if (scoreTxt) scoreTxt.visible = true;
	if (movesTxt) movesTxt.visible = true;
	if (targetTxt) targetTxt.visible = true;
	if (levelTopRightTxt) levelTopRightTxt.visible = true;
	if (bonusPanel) bonusPanel.visible = true;
	if (boardContainer) boardContainer.visible = true;
	if (levelTxt) levelTxt.visible = true;
	if (prevLevelBtn) prevLevelBtn.visible = true;
	if (resetBtn) resetBtn.visible = true;
	// Removed reference to nextLevelBtn which is not defined
	if (window.levelDescTxt) window.levelDescTxt.visible = true;
	if (counterPanel) counterPanel.visible = true;
}

===================================================================
--- original.js
+++ change.js
@@ -1672,8 +1672,10 @@
 				});
 			});
 		});
 		movesLeft--; // Using a bonus still costs a move
+		if (movesLeft < 0) movesLeft = 0;
+		if (movesLeft < 0) movesLeft = 0;
 		updateGUI();
 		selectedBonus = null;
 		bombBtnBg.scaleX = bombBtnBg.scaleY = 1.0;
 		deselectAll();
@@ -1721,8 +1723,9 @@
 						});
 					});
 				});
 				movesLeft--;
+				if (movesLeft < 0) movesLeft = 0;
 				updateGUI();
 				swapping = false;
 				specialActivated = true;
 			}
@@ -1745,8 +1748,9 @@
 						});
 					});
 				});
 				movesLeft--;
+				if (movesLeft < 0) movesLeft = 0;
 				updateGUI();
 				swapping = false;
 				specialActivated = true;
 			}
@@ -1776,8 +1780,9 @@
 						});
 					});
 				});
 				movesLeft--;
+				if (movesLeft < 0) movesLeft = 0;
 				updateGUI();
 				swapping = false;
 				specialActivated = true;
 			}
@@ -1786,8 +1791,9 @@
 				var matches = findMatches();
 				if (matches.length > 0) {
 					processMatches();
 					movesLeft--;
+					if (movesLeft < 0) movesLeft = 0;
 					updateGUI();
 					swapping = false;
 				} else {
 					// No match, swap back
@@ -1829,8 +1835,9 @@
 						selectedCandy = c1;
 						c1.setSelected(true);
 					});
 					movesLeft--;
+					if (movesLeft < 0) movesLeft = 0;
 					updateGUI();
 				}
 			}
 		});
@@ -1912,9 +1919,10 @@
 						LK.showGameOver();
 						LK.setTimeout(function () {
 							// Reset current level: reset score, moves, board
 							score = 0;
-							movesLeft = levels[currentLevel].moves;
+							// Always reset movesLeft to the initial moves for this level, never negative
+							movesLeft = Math.max(0, levels[currentLevel].moves);
 							targetScore = levels[currentLevel].target;
 							storage.currentLevel = currentLevel;
 							storage.score = score;
 							storage.movesLeft = movesLeft;
@@ -2041,9 +2049,10 @@
 			LK.showGameOver();
 			LK.setTimeout(function () {
 				// Reset current level: reset score, moves, board
 				score = 0;
-				movesLeft = levels[currentLevel].moves;
+				// Always reset movesLeft to the initial moves for this level, never negative
+				movesLeft = Math.max(0, levels[currentLevel].moves);
 				targetScore = levels[currentLevel].target;
 				storage.currentLevel = currentLevel;
 				storage.score = score;
 				storage.movesLeft = movesLeft;
@@ -2113,8 +2122,9 @@
 				});
 			});
 		});
 		movesLeft--; // Using a bonus still costs a move
+		if (movesLeft < 0) movesLeft = 0;
 		updateGUI();
 		selectedBonus = null;
 		bombBtnBg.scaleX = bombBtnBg.scaleY = 1.0;
 		deselectAll();
@@ -2165,8 +2175,9 @@
 						});
 					});
 				});
 				movesLeft--;
+				if (movesLeft < 0) movesLeft = 0;
 				updateGUI();
 				swapping = false;
 				specialActivated = true;
 			} else if (c1.special === SPECIAL_STRIPED && c2.special === SPECIAL_STRIPED) {
@@ -2187,8 +2198,9 @@
 						});
 					});
 				});
 				movesLeft--;
+				if (movesLeft < 0) movesLeft = 0;
 				updateGUI();
 				swapping = false;
 				specialActivated = true;
 			} else if (c1.special === SPECIAL_BOMB || c2.special === SPECIAL_BOMB) {
@@ -2216,8 +2228,9 @@
 						});
 					});
 				});
 				movesLeft--;
+				if (movesLeft < 0) movesLeft = 0;
 				updateGUI();
 				swapping = false;
 				specialActivated = true;
 			}
@@ -2225,8 +2238,9 @@
 				var matches = findMatches();
 				if (matches.length > 0) {
 					processMatches();
 					movesLeft--;
+					if (movesLeft < 0) movesLeft = 0;
 					updateGUI();
 					swapping = false;
 				} else {
 					// No match, swap back
@@ -2267,8 +2281,9 @@
 						selectedCandy = c1;
 						c1.setSelected(true);
 					});
 					movesLeft--;
+					if (movesLeft < 0) movesLeft = 0;
 					updateGUI();
 				}
 			}
 		});