/**** 
* Classes
****/ 
var Barrier = Container.expand(function () {
	var self = Container.call(this);
	var barrierGraphics = self.attachAsset('barrier', {
		anchorX: .5,
		anchorY: .5
	});
});
var Bubble = Container.expand(function (max_types) {
	var self = Container.call(this);
	var colors = [0xff0000, 0x00ff00, 0x0000ff, 0xff00ff, 0xffff00, 0x00ffff, 0xffffff];
	var bubbleGraphics = self.attachAsset('bubble', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var state = 0;
	var targetX = 0;
	var targetY = 0;
	var isAttached = true;
	var speedX = 0;
	var speedY = 0;
	self.setPos = function (x, y) {
		self.x = targetX = x;
		self.y = targetY = y;
	};
	max_types = max_types || 3;
	self.type = Math.floor(Math.random() * max_types);
	bubbleGraphics.tint = colors[self.type];
	self.detatch = function () {
		game.addChild(self);
		self.y += grid.y;
		isAttached = false;
		speedX = Math.random() * 40 - 20;
		speedY = -Math.random() * 30;
		self.down = undefined;
	};
	self.update = function () {
		if (!isAttached) {
			self.x += speedX;
			self.y += speedY;
			speedY += 1.5;
			if (self.x < self.width / 2 && speedX < 0 || self.x > game.width - self.width / 2 && speedX > 0) {
				speedX = -speedX;
			}
			// Check for intersection with each barrier
			for (var i = 0; i < barriers.length; i++) {
				var barrier = barriers[i];
				var lines = [{
					x1: barrier.x - barrier.width / 2,
					y1: barrier.y - barrier.height / 2,
					x2: barrier.x + barrier.width / 2,
					y2: barrier.y - barrier.height / 2
				}, {
					x1: barrier.x + barrier.width / 2,
					y1: barrier.y - barrier.height / 2,
					x2: barrier.x + barrier.width / 2,
					y2: barrier.y + barrier.height / 2
				}, {
					x1: barrier.x + barrier.width / 2,
					y1: barrier.y + barrier.height / 2,
					x2: barrier.x - barrier.width / 2,
					y2: barrier.y + barrier.height / 2
				}, {
					x1: barrier.x - barrier.width / 2,
					y1: barrier.y + barrier.height / 2,
					x2: barrier.x - barrier.width / 2,
					y2: barrier.y - barrier.height / 2
				}];
				for (var j = 0; j < lines.length; j++) {
					var line = lines[j];
					var intersects = circleLineSegmentIntersection({
						x: self.x,
						y: self.y,
						radius: self.width / 2
					}, line);
					if (intersects) {
						isAttached = true;
						// Bounce off the barrier
						var normal = {
							x: line.y2 - line.y1,
							y: line.x1 - line.x2
						};
						var magnitude = Math.sqrt(normal.x * normal.x + normal.y * normal.y);
						normal.x /= magnitude;
						normal.y /= magnitude;
						var dot = speedX * normal.x + speedY * normal.y;
						// Only bounce if the bubble is moving towards the barrier
						if (dot < 0) {
							speedX -= 2 * dot * normal.x;
							speedY -= 2 * dot * normal.y;
							break;
						}
					}
				}
			}
		}
	};
});
var Grid = Container.expand(function () {
	var self = Container.call(this);
	var rows = [];
	self.container = self.addChild(new Container());
	var rowCount = 0;
	function insertRow() {
		var row = [];
		var rowWidth = rowCount % 2 == 0 ? 13 : 12;
		for (var a = 0; a < rowWidth; a++) {
			var bubble = new Bubble();
			bubble.setPos((2048 - bubble.width * rowWidth) / 2 + bubble.width * a + bubble.width / 2, -rowCount * (1.7320508076 * bubble.height) / 2);
			self.container.addChild(bubble);
			row.push(bubble);
			bubble.down = function () {
				var bubbles = self.getConnectedBubbles(this);
				self.removeBubbles(bubbles);
				var disconnected = self.getDetachedBubbles();
				self.removeBubbles(disconnected);
			};
		}
		rows.push(row);
		rowCount++;
	}
	//Method that removes an array of bubbles from the rows array. 
	self.removeBubbles = function (bubbles) {
		for (var i = 0; i < bubbles.length; i++) {
			var bubble = bubbles[i];
			var bubbleIndex = this.findBubbleIndex(bubble);
			if (bubbleIndex) {
				rows[bubbleIndex.row][bubbleIndex.col] = null;
				bubble.detatch();
			}
		}
	};
	self.getConnectedBubbles = function (bubble, ignoreType) {
		var connectedBubbles = [];
		var queue = [bubble];
		var visited = [];
		while (queue.length > 0) {
			var currentBubble = queue.shift();
			if (visited.indexOf(currentBubble) === -1) {
				visited.push(currentBubble);
				connectedBubbles.push(currentBubble);
				var neighbors = self.getNeighbors(currentBubble);
				for (var i = 0; i < neighbors.length; i++) {
					var neighbor = neighbors[i];
					if (neighbor && (neighbor.type === bubble.type || ignoreType)) {
						queue.push(neighbor);
					}
				}
			}
		}
		return connectedBubbles;
	};
	//Get a list of bubbles that are not connected to the top row, or to a chain of bubbles connected to the top row.
	self.getDetachedBubbles = function () {
		var detachedBubbles = [];
		var connectedToTop = [];
		// Mark all bubbles connected to the bottom row
		var lastRowIndex = rows.length - 1;
		for (var i = 0; i < rows[lastRowIndex].length; i++) {
			if (rows[lastRowIndex][i] !== null) {
				var bottomConnected = self.getConnectedBubbles(rows[lastRowIndex][i], true);
				connectedToTop = connectedToTop.concat(bottomConnected);
			}
		}
		// Mark all bubbles as visited or not
		var visited = connectedToTop.filter(function (bubble) {
			return bubble != null;
		});
		// Find all bubbles that are not visited and not connected to the top
		for (var row = 0; row < rows.length - 1; row++) {
			for (var col = 0; col < rows[row].length; col++) {
				var bubble = rows[row][col];
				if (bubble !== null && visited.indexOf(bubble) == -1) {
					detachedBubbles.push(bubble);
				}
			}
		}
		return detachedBubbles;
	};
	self.getNeighbors = function (bubble) {
		var neighbors = [];
		var bubbleIndex = this.findBubbleIndex(bubble);
		var directions = [[-1, 0], [1, 0],
		// left and right
		[0, -1], [0, 1],
		// above and below
		[-1, -1], [1, -1] // diagonals for even rows
		];
		if (bubbleIndex.row % 2 === 1) {
			// Adjust diagonals for odd rows
			directions[4] = [-1, 1];
			directions[5] = [1, 1];
		}
		for (var i = 0; i < directions.length; i++) {
			var dir = directions[i];
			var newRow = bubbleIndex.row + dir[0];
			var newCol = bubbleIndex.col + dir[1];
			if (newRow >= 0 && newRow < rows.length && newCol >= 0 && newCol < rows[newRow].length) {
				neighbors.push(rows[newRow][newCol]);
			}
		}
		return neighbors;
	};
	self.findBubbleIndex = function (bubble) {
		for (var row = 0; row < rows.length; row++) {
			var col = rows[row].indexOf(bubble);
			if (col !== -1) {
				return {
					row: row,
					col: col
				};
			}
		}
		return null;
	};
	insertRow();
	insertRow();
	insertRow();
	insertRow();
	insertRow();
	insertRow();
	insertRow();
	insertRow();
	insertRow();
});
var HintBubble = Container.expand(function () {
	var self = Container.call(this);
});
var Launcher = Container.expand(function () {
	var self = Container.call(this);
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x010c42
});

/**** 
* Game Code
****/ 
//Game size 2048x2732
// Method to calculate the intersection between a circle and a line
function circleLineSegmentIntersection(circle, lineSegment) {
	var cx = circle.x,
		cy = circle.y,
		radius = circle.radius;
	var x1 = lineSegment.x1,
		y1 = lineSegment.y1,
		x2 = lineSegment.x2,
		y2 = lineSegment.y2;
	// Calculate distances
	var dx = x2 - x1;
	var dy = y2 - y1;
	var a = dx * dx + dy * dy;
	var b = 2 * (dx * (x1 - cx) + dy * (y1 - cy));
	var c = (x1 - cx) * (x1 - cx) + (y1 - cy) * (y1 - cy) - radius * radius;
	var det = b * b - 4 * a * c;
	if (a <= 0.0000001 || det < 0) {
		// No real solutions, no intersection
		return false;
	} else if (det == 0) {
		// One solution, tangent line
		var t = -b / (2 * a);
		return t >= 0 && t <= 1;
	} else {
		// Two solutions, check if either are on the segment
		var t1 = (-b + Math.sqrt(det)) / (2 * a);
		var t2 = (-b - Math.sqrt(det)) / (2 * a);
		return t1 >= 0 && t1 <= 1 || t2 >= 0 && t2 <= 1;
	}
}
var grid = game.addChild(new Grid());
grid.y = 1300;
var barriers = [];
for (var a = 0; a < 4; a++) {
	var barrier = game.addChild(new Barrier());
	barrier.y = 2732 - 500;
	barrier.x = 2048 / 5 * a + 2048 / 5;
	barriers.push(barrier);
}
/*var testBubble = game.addChild(new Bubble());
game.move = function (x, y) {
	var barrier = barriers[barriers.length - 1];
	var lines = [{
		x1: barrier.x - barrier.width / 2,
		y1: barrier.y - barrier.height / 2,
		x2: barrier.x + barrier.width / 2,
		y2: barrier.y - barrier.height / 2
	}, {
		x1: barrier.x + barrier.width / 2,
		y1: barrier.y - barrier.height / 2,
		x2: barrier.x + barrier.width / 2,
		y2: barrier.y + barrier.height / 2
	}, {
		x1: barrier.x + barrier.width / 2,
		y1: barrier.y + barrier.height / 2,
		x2: barrier.x - barrier.width / 2,
		y2: barrier.y + barrier.height / 2
	}, {
		x1: barrier.x - barrier.width / 2,
		y1: barrier.y + barrier.height / 2,
		x2: barrier.x - barrier.width / 2,
		y2: barrier.y - barrier.height / 2
	}];
	testBubble.x = x;
	testBubble.y = y;
	console.log(circleLineSegmentIntersection({
		x: x,
		y: y,
		radius: 150 / 2
	}, lines[3]));
};*/