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

/**** 
* Classes
****/ 
var Candy = Container.expand(function (type, gridX, gridY) {
	var self = Container.call(this);
	self.candyType = type;
	self.gridX = gridX;
	self.gridY = gridY;
	self.isSpecial = false;
	self.specialType = null; // 'lineH', 'lineV', 'explosive'
	self.falling = false;
	var assetId = 'candy' + type;
	var candyGraphics = self.attachAsset(assetId, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.setSpecialType = function (specialType) {
		self.isSpecial = true;
		self.specialType = specialType;
		self.removeChild(candyGraphics);
		var newAssetId;
		if (specialType === 'lineH') newAssetId = 'lineCandyH';else if (specialType === 'lineV') newAssetId = 'lineCandyV';else if (specialType === 'explosive') newAssetId = 'explosiveCandy';else newAssetId = 'candy' + type;
		candyGraphics = self.attachAsset(newAssetId, {
			anchorX: 0.5,
			anchorY: 0.5
		});
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2a1810
});

/**** 
* Game Code
****/ 
var GRID_SIZE = 8;
var CELL_SIZE = 200;
var CANDY_TYPES = 6;
var TARGET_SCORE = 5000;
var MAX_MOVES = 30;
var grid = [];
var score = 0;
var moves = 0;
var selectedCandy = null;
var isProcessing = false;
var gridOffsetX = (2048 - GRID_SIZE * CELL_SIZE) / 2;
var gridOffsetY = 400;
// UI Elements
var scoreTxt = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var movesTxt = new Text2('Moves: ' + MAX_MOVES, {
	size: 80,
	fill: 0xFFFFFF
});
movesTxt.anchor.set(0.5, 0);
movesTxt.y = 100;
LK.gui.top.addChild(movesTxt);
var targetTxt = new Text2('Target: ' + TARGET_SCORE, {
	size: 60,
	fill: 0xFFFF00
});
targetTxt.anchor.set(0.5, 0);
targetTxt.y = 200;
LK.gui.top.addChild(targetTxt);
// Music mute button
var isMusicMuted = false;
var muteButton = new Text2('🔊', {
	size: 80,
	fill: 0xFFFFFF
});
muteButton.anchor.set(1, 0);
muteButton.x = -50; // Position from right edge
muteButton.y = 50;
LK.gui.topRight.addChild(muteButton);
// Create grid background
for (var row = 0; row < GRID_SIZE; row++) {
	for (var col = 0; col < GRID_SIZE; col++) {
		var bgTile = game.addChild(LK.getAsset('gridBackground', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: gridOffsetX + col * CELL_SIZE + CELL_SIZE / 2,
			y: gridOffsetY + row * CELL_SIZE + CELL_SIZE / 2,
			alpha: 0.3
		}));
	}
}
function getBalancedCandyType(row, col) {
	// First check for immediate matches that would be created
	var forbiddenTypes = [];
	// Check horizontal matches (left and right)
	if (col >= 2 && grid[row] && grid[row][col - 1] && grid[row][col - 2] && grid[row][col - 1].candyType === grid[row][col - 2].candyType) {
		forbiddenTypes.push(grid[row][col - 1].candyType);
	}
	// Check vertical matches (up)
	if (row >= 2 && grid[row - 1] && grid[row - 1][col] && grid[row - 2] && grid[row - 2][col] && grid[row - 1][col].candyType === grid[row - 2][col].candyType) {
		forbiddenTypes.push(grid[row - 1][col].candyType);
	}
	// Count only immediate neighbors to prevent excessive clustering
	var typeCounts = {};
	for (var i = 1; i <= CANDY_TYPES; i++) {
		typeCounts[i] = 0;
	}
	// Check only direct adjacent cells (not 3x3 area)
	var adjacentPositions = [{
		r: row - 1,
		c: col
	}, {
		r: row + 1,
		c: col
	}, {
		r: row,
		c: col - 1
	}, {
		r: row,
		c: col + 1
	}];
	for (var i = 0; i < adjacentPositions.length; i++) {
		var pos = adjacentPositions[i];
		if (pos.r >= 0 && pos.r < GRID_SIZE && pos.c >= 0 && pos.c < GRID_SIZE && grid[pos.r] && grid[pos.r][pos.c] && grid[pos.r][pos.c].candyType) {
			typeCounts[grid[pos.r][pos.c].candyType]++;
		}
	}
	// Create available types list, excluding forbidden and over-represented types
	var availableTypes = [];
	for (var type = 1; type <= CANDY_TYPES; type++) {
		// Don't use forbidden types (would create immediate matches)
		if (forbiddenTypes.indexOf(type) !== -1) continue;
		// Don't use types that appear in 3+ adjacent cells
		if (typeCounts[type] >= 3) continue;
		availableTypes.push(type);
	}
	// If all types are forbidden/over-represented, allow types with fewer adjacent occurrences
	if (availableTypes.length === 0) {
		var minCount = Math.min.apply(Math, Object.values(typeCounts));
		for (var type = 1; type <= CANDY_TYPES; type++) {
			if (forbiddenTypes.indexOf(type) === -1 && typeCounts[type] === minCount) {
				availableTypes.push(type);
			}
		}
	}
	// If still no available types, just pick randomly (should not happen)
	if (availableTypes.length === 0) {
		availableTypes = [1, 2, 3, 4, 5, 6];
	}
	// Return random type from available ones
	return availableTypes[Math.floor(Math.random() * availableTypes.length)];
}
function initializeGrid() {
	grid = [];
	for (var row = 0; row < GRID_SIZE; row++) {
		grid[row] = [];
		for (var col = 0; col < GRID_SIZE; col++) {
			var candyType = getBalancedCandyType(row, col);
			var candy = new Candy(candyType, col, row);
			candy.x = gridOffsetX + col * CELL_SIZE + CELL_SIZE / 2;
			candy.y = gridOffsetY + row * CELL_SIZE + CELL_SIZE / 2;
			grid[row][col] = candy;
			game.addChild(candy);
		}
	}
	// Remove initial matches
	var hasMatches = true;
	while (hasMatches) {
		hasMatches = false;
		for (var row = 0; row < GRID_SIZE; row++) {
			for (var col = 0; col < GRID_SIZE; col++) {
				if (checkMatch(row, col).length >= 3) {
					grid[row][col].candyType = getBalancedCandyType(row, col);
					hasMatches = true;
				}
			}
		}
	}
}
function getGridPosition(x, y) {
	var col = Math.floor((x - gridOffsetX) / CELL_SIZE);
	var row = Math.floor((y - gridOffsetY) / CELL_SIZE);
	if (col >= 0 && col < GRID_SIZE && row >= 0 && row < GRID_SIZE) {
		return {
			row: row,
			col: col
		};
	}
	return null;
}
function checkMatch(row, col) {
	// Validate input parameters
	if (row < 0 || row >= GRID_SIZE || col < 0 || col >= GRID_SIZE) {
		return [];
	}
	var candy = grid[row][col];
	if (!candy || candy.falling || !candy.candyType) return [];
	var type = candy.candyType;
	var horizontalMatches = [candy];
	var verticalMatches = [candy];
	// Check horizontal matches
	var left = col - 1;
	while (left >= 0 && grid[row] && grid[row][left] && !grid[row][left].falling && grid[row][left].candyType && grid[row][left].candyType === type) {
		horizontalMatches.push(grid[row][left]);
		left--;
	}
	var right = col + 1;
	while (right < GRID_SIZE && grid[row] && grid[row][right] && !grid[row][right].falling && grid[row][right].candyType && grid[row][right].candyType === type) {
		horizontalMatches.push(grid[row][right]);
		right++;
	}
	// Check vertical matches
	var up = row - 1;
	while (up >= 0 && grid[up] && grid[up][col] && !grid[up][col].falling && grid[up][col].candyType && grid[up][col].candyType === type) {
		verticalMatches.push(grid[up][col]);
		up--;
	}
	var down = row + 1;
	while (down < GRID_SIZE && grid[down] && grid[down][col] && !grid[down][col].falling && grid[down][col].candyType && grid[down][col].candyType === type) {
		verticalMatches.push(grid[down][col]);
		down++;
	}
	// Return the larger match group if either is 3 or more
	if (horizontalMatches.length >= 3 && verticalMatches.length >= 3) {
		// Return combined matches for cross patterns
		var allMatches = [];
		for (var i = 0; i < horizontalMatches.length; i++) {
			if (allMatches.indexOf(horizontalMatches[i]) === -1) {
				allMatches.push(horizontalMatches[i]);
			}
		}
		for (var i = 0; i < verticalMatches.length; i++) {
			if (allMatches.indexOf(verticalMatches[i]) === -1) {
				allMatches.push(verticalMatches[i]);
			}
		}
		return allMatches;
	} else if (horizontalMatches.length >= 3) {
		return horizontalMatches;
	} else if (verticalMatches.length >= 3) {
		return verticalMatches;
	}
	return [];
}
function findAllMatches() {
	var allMatches = [];
	var processed = [];
	for (var row = 0; row < GRID_SIZE; row++) {
		processed[row] = [];
		for (var col = 0; col < GRID_SIZE; col++) {
			processed[row][col] = false;
		}
	}
	for (var row = 0; row < GRID_SIZE; row++) {
		for (var col = 0; col < GRID_SIZE; col++) {
			if (!processed[row][col] && grid[row] && grid[row][col] && !grid[row][col].falling) {
				var matches = checkMatch(row, col);
				if (matches.length >= 3) {
					allMatches.push(matches);
					for (var i = 0; i < matches.length; i++) {
						var match = matches[i];
						if (match && match.gridY >= 0 && match.gridY < GRID_SIZE && match.gridX >= 0 && match.gridX < GRID_SIZE) {
							processed[match.gridY][match.gridX] = true;
						}
					}
				}
			}
		}
	}
	return allMatches;
}
function removeMatches(matchGroups) {
	var totalScore = 0;
	for (var g = 0; g < matchGroups.length; g++) {
		var matches = matchGroups[g];
		var matchScore = 0;
		if (matches.length === 3) matchScore = 100;else if (matches.length === 4) matchScore = 200;else if (matches.length >= 5) matchScore = 500;
		totalScore += matchScore;
		// Create special candy for 4+ matches
		var specialCandy = null;
		if (matches.length >= 4) {
			var centerCandy = matches[Math.floor(matches.length / 2)];
			if (matches.length === 4) {
				// Create line candy based on match direction
				var isHorizontal = matches[0].gridY === matches[1].gridY;
				centerCandy.setSpecialType(isHorizontal ? 'lineH' : 'lineV');
			} else if (matches.length >= 5) {
				centerCandy.setSpecialType('explosive');
			}
			specialCandy = centerCandy;
		}
		// Animate candy destruction with satisfying effects
		for (var i = 0; i < matches.length; i++) {
			var candy = matches[i];
			if (matches.length < 4 || candy !== specialCandy) {
				// Create particle effect before destroying
				createParticleEffect(candy.x, candy.y, candy.candyType);
				// Animate candy scaling down with bounce
				tween(candy, {
					scaleX: 0,
					scaleY: 0,
					rotation: Math.PI * 2,
					alpha: 0
				}, {
					duration: 300,
					easing: tween.bounceIn,
					onFinish: function onFinish() {
						if (candy.parent) {
							candy.destroy();
						}
					}
				});
				// Set grid position to null immediately
				grid[candy.gridY][candy.gridX] = null;
			} else {
				// Special candy creation effect
				tween(candy, {
					scaleX: 1.5,
					scaleY: 1.5
				}, {
					duration: 200,
					easing: tween.bounceOut,
					onFinish: function onFinish() {
						tween(candy, {
							scaleX: 1,
							scaleY: 1
						}, {
							duration: 150,
							easing: tween.easeOut
						});
					}
				});
				LK.effects.flashObject(candy, 0xFFD700, 500);
			}
		}
	}
	if (totalScore > 0) {
		LK.getSound('match').play();
		LK.effects.flashScreen(0xFFFFFF, 200);
	}
	return totalScore;
}
function applyGravity() {
	var moved = false;
	var animationDelay = 0;
	for (var col = 0; col < GRID_SIZE; col++) {
		var writePos = GRID_SIZE - 1;
		var colDelay = col * 30; // Stagger columns slightly
		for (var row = GRID_SIZE - 1; row >= 0; row--) {
			if (grid[row][col] !== null) {
				if (row !== writePos) {
					var candy = grid[row][col];
					grid[writePos][col] = candy;
					grid[row][col] = null;
					candy.gridY = writePos;
					candy.gridX = col;
					candy.falling = true;
					var fallDistance = writePos - row;
					var fallDuration = 200 + fallDistance * 50; // Longer falls take more time
					LK.setTimeout(function (candy, writePos, fallDuration) {
						return function () {
							tween(candy, {
								y: gridOffsetY + writePos * CELL_SIZE + CELL_SIZE / 2
							}, {
								duration: fallDuration,
								easing: tween.bounceOut,
								onFinish: function onFinish() {
									candy.falling = false;
								}
							});
						};
					}(candy, writePos, fallDuration), colDelay);
					moved = true;
				}
				writePos--;
			}
		}
		// Fill empty spaces with new candies
		for (var emptyRow = writePos; emptyRow >= 0; emptyRow--) {
			var candyType = getBalancedCandyType(emptyRow, col);
			var newCandy = new Candy(candyType, col, emptyRow);
			newCandy.x = gridOffsetX + col * CELL_SIZE + CELL_SIZE / 2;
			newCandy.y = gridOffsetY + (emptyRow - GRID_SIZE) * CELL_SIZE + CELL_SIZE / 2;
			newCandy.falling = true;
			grid[emptyRow][col] = newCandy;
			game.addChild(newCandy);
			var dropDelay = colDelay + (GRID_SIZE - emptyRow) * 50;
			LK.setTimeout(function (newCandy, emptyRow) {
				return function () {
					tween(newCandy, {
						y: gridOffsetY + emptyRow * CELL_SIZE + CELL_SIZE / 2
					}, {
						duration: 300,
						easing: tween.bounceOut,
						onFinish: function onFinish() {
							newCandy.falling = false;
						}
					});
				};
			}(newCandy, emptyRow), dropDelay);
			moved = true;
		}
	}
	return moved;
}
function swapCandies(candy1, candy2) {
	if (isProcessing) return false;
	// Validate candies exist and have proper grid positions
	if (!candy1 || !candy2 || candy1.falling || candy2.falling) return false;
	if (candy1.gridX < 0 || candy1.gridX >= GRID_SIZE || candy1.gridY < 0 || candy1.gridY >= GRID_SIZE) return false;
	if (candy2.gridX < 0 || candy2.gridX >= GRID_SIZE || candy2.gridY < 0 || candy2.gridY >= GRID_SIZE) return false;
	var tempGridX = candy1.gridX;
	var tempGridY = candy1.gridY;
	candy1.gridX = candy2.gridX;
	candy1.gridY = candy2.gridY;
	candy2.gridX = tempGridX;
	candy2.gridY = tempGridY;
	grid[candy1.gridY][candy1.gridX] = candy1;
	grid[candy2.gridY][candy2.gridX] = candy2;
	var pos1 = {
		x: gridOffsetX + candy1.gridX * CELL_SIZE + CELL_SIZE / 2,
		y: gridOffsetY + candy1.gridY * CELL_SIZE + CELL_SIZE / 2
	};
	var pos2 = {
		x: gridOffsetX + candy2.gridX * CELL_SIZE + CELL_SIZE / 2,
		y: gridOffsetY + candy2.gridY * CELL_SIZE + CELL_SIZE / 2
	};
	isProcessing = true;
	tween(candy1, pos1, {
		duration: 200,
		easing: tween.easeInOut
	});
	tween(candy2, pos2, {
		duration: 200,
		easing: tween.easeInOut,
		onFinish: function onFinish() {
			var matches1 = checkMatch(candy1.gridY, candy1.gridX);
			var matches2 = checkMatch(candy2.gridY, candy2.gridX);
			if (matches1.length >= 3 || matches2.length >= 3) {
				LK.getSound('swap').play();
				moves++;
				movesTxt.setText('Moves: ' + (MAX_MOVES - moves));
				processMatches();
			} else {
				// Wrong match - penalize score and play sound
				score -= 300;
				if (score < 0) score = 0; // Don't let score go negative
				scoreTxt.setText('Score: ' + score);
				LK.getSound('wrongMatch').play();
				// Flash screen red to indicate wrong match
				LK.effects.flashScreen(0xFF0000, 300);
				// Swap back
				var tempGridX = candy1.gridX;
				var tempGridY = candy1.gridY;
				candy1.gridX = candy2.gridX;
				candy1.gridY = candy2.gridY;
				candy2.gridX = tempGridX;
				candy2.gridY = tempGridY;
				grid[candy1.gridY][candy1.gridX] = candy1;
				grid[candy2.gridY][candy2.gridX] = candy2;
				tween(candy1, pos2, {
					duration: 200
				});
				tween(candy2, pos1, {
					duration: 200,
					onFinish: function onFinish() {
						isProcessing = false;
					}
				});
			}
		}
	});
	return true;
}
function processMatches() {
	LK.setTimeout(function () {
		var matchGroups = findAllMatches();
		if (matchGroups.length > 0) {
			var matchScore = removeMatches(matchGroups);
			score += matchScore;
			scoreTxt.setText('Score: ' + score);
			LK.setTimeout(function () {
				var moved = applyGravity();
				if (moved) {
					LK.setTimeout(function () {
						processMatches();
					}, 400);
				} else {
					isProcessing = false;
					checkGameEnd();
				}
			}, 100);
		} else {
			isProcessing = false;
			checkGameEnd();
		}
	}, 100);
}
function createParticleEffect(x, y, candyType) {
	// Create multiple particle sprites for a juicy effect
	var colors = [0xFF6B6B, 0x4ECDC4, 0x45B7D1, 0x96CEB4, 0xFECE2F, 0xFF8A80];
	var particleColor = colors[candyType - 1] || 0xFFFFFF;
	for (var i = 0; i < 8; i++) {
		var particle = game.addChild(LK.getAsset('candy' + candyType, {
			anchorX: 0.5,
			anchorY: 0.5,
			x: x,
			y: y,
			scaleX: 0.3,
			scaleY: 0.3,
			alpha: 0.8
		}));
		// Random direction and distance for particles
		var angle = Math.PI * 2 * i / 8;
		var distance = 50 + Math.random() * 100;
		var targetX = x + Math.cos(angle) * distance;
		var targetY = y + Math.sin(angle) * distance;
		// Animate particles flying out and fading
		tween(particle, {
			x: targetX,
			y: targetY,
			scaleX: 0,
			scaleY: 0,
			alpha: 0,
			rotation: Math.random() * Math.PI * 4
		}, {
			duration: 400 + Math.random() * 200,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				if (particle.parent) {
					particle.destroy();
				}
			}
		});
	}
}
function checkGameEnd() {
	if (score >= TARGET_SCORE) {
		LK.showYouWin();
	} else if (moves >= MAX_MOVES) {
		LK.showGameOver();
	}
}
function isAdjacent(candy1, candy2) {
	var dx = Math.abs(candy1.gridX - candy2.gridX);
	var dy = Math.abs(candy1.gridY - candy2.gridY);
	return dx === 1 && dy === 0 || dx === 0 && dy === 1;
}
// Mute button click handler
muteButton.down = function (x, y, obj) {
	if (isMusicMuted) {
		LK.playMusic('backgroundMusic');
		muteButton.setText('🔊');
		isMusicMuted = false;
	} else {
		LK.stopMusic();
		muteButton.setText('🔇');
		isMusicMuted = true;
	}
	// Add visual feedback
	tween(muteButton, {
		scaleX: 1.2,
		scaleY: 1.2
	}, {
		duration: 100,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			tween(muteButton, {
				scaleX: 1,
				scaleY: 1
			}, {
				duration: 100,
				easing: tween.easeOut
			});
		}
	});
};
game.down = function (x, y, obj) {
	if (isProcessing) return;
	var gridPos = getGridPosition(x, y);
	if (!gridPos) return;
	var candy = grid[gridPos.row][gridPos.col];
	if (!candy || candy.falling) return;
	if (selectedCandy === null) {
		selectedCandy = candy;
		tween(candy, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 150,
			easing: tween.bounceOut
		});
		LK.effects.flashObject(candy, 0xFFFFFF, 300);
	} else if (selectedCandy === candy) {
		tween(candy, {
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 150,
			easing: tween.easeOut
		});
		selectedCandy = null;
	} else if (isAdjacent(selectedCandy, candy)) {
		tween(selectedCandy, {
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 150,
			easing: tween.easeOut
		});
		swapCandies(selectedCandy, candy);
		selectedCandy = null;
	} else {
		tween(selectedCandy, {
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 150,
			easing: tween.easeOut
		});
		selectedCandy = candy;
		tween(candy, {
			scaleX: 1.2,
			scaleY: 1.2
		}, {
			duration: 150,
			easing: tween.bounceOut
		});
		LK.effects.flashObject(candy, 0xFFFFFF, 300);
	}
};
// Add background image
var backgroundImage = game.addChild(LK.getAsset('gameBackground', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 2048 / 2,
	y: 2732 / 2,
	alpha: 0.8
}));
// Initialize the game
initializeGrid();
// Start background music after mute button is set up
LK.playMusic('backgroundMusic');
// Game update function to automatically detect and process matches
game.update = function () {
	// Only check for automatic matches when not processing and no candies are falling
	if (!isProcessing) {
		var anyFalling = false;
		for (var row = 0; row < GRID_SIZE; row++) {
			for (var col = 0; col < GRID_SIZE; col++) {
				if (grid[row][col] && grid[row][col].falling) {
					anyFalling = true;
					break;
				}
			}
			if (anyFalling) break;
		}
		// If no candies are falling, check for automatic matches
		if (!anyFalling) {
			var matchGroups = findAllMatches();
			if (matchGroups.length > 0) {
				// Automatically process the matches found
				processMatches();
			}
		}
	}
};
;