var Reindeer = Container.expand(function (gameInstance) {
	var self = Container.call(this);
	self.fadeOut = function () {
		if (self.alpha > 0) {
			self.alpha -= 0.01;
		} else {
			self.gameInstance.respawnReindeer(self);
		}
	};
	self.gameInstance = gameInstance;
	var reindeerGraphics = self.createAsset('reindeer', 'Reindeer', 0.5, 0.5);
	self.arcAngle = 0;
	self.arcDirection = 1;
	self.arcRadius = 300;
	self.arcSpeed = 0.01;
	self.moveInArc = function () {
		self.arcAngle += self.arcSpeed * self.arcDirection;
		self.x = 2048 / 2 + Math.cos(self.arcAngle) * self.arcRadius;
		self.y = 2732 / 4 + Math.sin(self.arcAngle) * self.arcRadius * 0.75;
		self.arcAngle = (self.arcAngle + self.arcSpeed * self.arcDirection) % (Math.PI * 2);
	};
	self.on('down', function (obj) {
		LK.setScore(LK.getScore() + 25);
		LK.gui.topCenter.children[0].setText(LK.getScore().toString());
		var greatText = new Text2('Great!', {
			size: 40,
			fill: '#ffffff',
			font: 'Arial Black'
		});
		greatText.x = self.x;
		greatText.y = self.y;
		greatText.anchor.set(0.5, 0.5);
		self.parent.addChild(greatText);
		LK.setTimeout(function () {
			greatText.destroy();
		}, 1000);
		self.parent.respawnReindeer();
		self.destroy();
	});
});
var RandomText = Container.expand(function () {
	var self = Container.call(this);
	self.gameInstance = null;
	self.display = function (x, y, messages) {
		var message = messages[Math.floor(Math.random() * messages.length)];
		var text = new Text2(message, {
			size: 48,
			fill: '#ff0000',
			font: 'Arial Black'
		});
		text.x = x - 400;
		text.y = y + 175;
		text.anchor.set(0.5, 0.5);
		self.addChild(text);
		LK.setTimeout(function () {
			text.destroy();
			self.parent.randomTextActive = false;
		}, 3000);
	};
});
var BadElf = Container.expand(function (spawnX, spawnY, gameInstance) {
	var self = Container.call(this);
	self.gameInstance = gameInstance;
	self.shoot = function () {
		if (self.gameInstance && self.gameInstance.santa) {
			if (self.visible) {
				var bullet = new ElfBullet(self.x, self.y, self.gameInstance.santa.x, self.gameInstance.santa.y, self.gameInstance);
				self.gameInstance.addChild(bullet);
			}
		}
	};
	LK.setInterval(self.shoot, Math.random() * (5000 - 2000) + 2000);
	var badElfGraphics = self.createAsset('badElf', 'Mischievous Elf', 0.5, 0.5);
	self.x = spawnX;
	self.y = spawnY;
	self.on('down', function (obj) {
		LK.setScore(LK.getScore() + 3);
		LK.gui.topCenter.children[0].setText(LK.getScore().toString());
		self.parent.activeBadElves--;
		self.destroy();
	});
});
var Mistletoe = Container.expand(function (gameInstance) {
	var self = Container.call(this);
	self.gameInstance = gameInstance;
	var mistletoeGraphics = self.createAsset('mistletoe', 'Mistletoe', 0.5, 0.5);
	var bobbingRange = 10;
	var bobbingSpeed = 0.2;
	var bobbingPosition = 0;
	self.bob = function () {
		bobbingPosition += bobbingSpeed;
		self.y += Math.sin(bobbingPosition) * bobbingRange;
	};
	self.on('down', function (obj) {
		LK.setScore(LK.getScore() + 10);
		LK.gui.topCenter.children[0].setText(LK.getScore().toString());
		self.parent.respawnMistletoe(self);
	});
});
var Snowflake = Container.expand(function () {
	var self = Container.call(this);
	var sizeFactor = Math.random() * 0.5 + 0.5;
	var snowflakeGraphics = self.createAsset('snowflake', 'Snowflake', 0.5, 0.5);
	snowflakeGraphics.scale.set(sizeFactor);
	self.speed = -3 * sizeFactor;
	self.move = function () {
		self.x += self.speed;
		self.y += 0.5;
		self.scale.x -= 0.003;
		self.scale.y -= 0.003;
		if (self.scale.x <= 0 || self.scale.y <= 0) {
			self.destroy();
		}
	};
});
var ElfBullet = Container.expand(function (startX, startY, targetX, targetY, gameInstance) {
	var self = Container.call(this);
	var bulletGraphics = self.createAsset('elfBullet', 'Elf Bullet', 0.5, 0.5);
	bulletGraphics.visible = true;
	self.addChild(bulletGraphics);
	self.gameInstance = gameInstance;
	var bulletGraphics = self.createAsset('elfBullet', 'Elf Bullet', 0.5, 0.5);
	bulletGraphics.anchor.set(0.5, 0.5);
	self.x = startX;
	self.y = startY;
	var dx = targetX - self.x;
	var dy = targetY - self.y;
	var distance = Math.sqrt(dx * dx + dy * dy);
	self.speedX = dx / distance * 5;
	self.speedY = dy / distance * 5;
	self.move = function () {
		self.x += self.speedX;
		self.y += self.speedY;
		if (self.x < 0 || self.x > 2048 || self.y < 0 || self.y > 2732) {
			self.destroy();
		}
	};
	self.on('down', function () {
		self.destroy();
	});
});
var Heart = Container.expand(function () {
	var self = Container.call(this);
	var heartGraphics = self.createAsset('heart', 'Player life', 0.5, 0.5);
	self.x = heartGraphics.width / 2;
	self.y = heartGraphics.height / 2;
});
var MuzzleFlash = Container.expand(function () {
	var self = Container.call(this);
	self.visible = false;
	var flashGraphics = self.createAsset('muzzleFlash', 'Muzzle flash effect', .5, .5);
	self.show = function () {
		var randomScale = Math.random() * 0.125 + 0.375;
		self.scale.set(randomScale);
		self.visible = true;
		LK.setTimeout(function () {
			self.visible = false;
			self.scale.set(1);
		}, 100);
	};
});
var Santa = Container.expand(function () {
	var self = Container.call(this);
	self.santaGraphics = self.createAsset('santa', 'Santa character', .5, .5);
	self.move = function () {};
	self.shoot = function () {};
});
var Crosshair = Container.expand(function () {
	var self = Container.call(this);
	self.move = function (event) {
		var pos = event.getLocalPosition(self.parent);
		self.x = pos.x;
		self.y = pos.y;
	};
	var crosshairGraphics = self.createAsset('crosshair', 'Crosshair', .5, .5);
	self.y = -crosshairGraphics.height / 2;
	self.destroy = function () {};
});
var Game = Container.expand(function () {
	var self = Container.call(this);
	self.respawnReindeer = function (reindeer) {
		LK.setTimeout(function () {
			var newReindeer = new Reindeer(self);
			var spawnLeftSide = Math.random() < 0.5;
			newReindeer.x = spawnLeftSide ? 0 : 2048;
			newReindeer.y = 2732 / 2;
			newReindeer.arcDirection = spawnLeftSide ? 1 : -1;
			newReindeer.arcRadius = 2048 / 2;
			newReindeer.arcAngle = spawnLeftSide ? Math.PI : 0;
			newReindeer.scale.x = spawnLeftSide ? 1 : -1;
			self.addChild(newReindeer);
			LK.on('tick', newReindeer.moveInArc.bind(newReindeer));
		}, Math.random() < 0.5 ? 8000 : 12000);
	};
	self.showGreatText = function (x, y) {
		var greatText = new Text2('Nice!', {
			size: 40,
			fill: '#ffffff',
			font: 'Arial Black'
		});
		greatText.x = x;
		greatText.y = y;
		greatText.anchor.set(0.5, 0.5);
		self.addChild(greatText);
		LK.setTimeout(function () {
			greatText.destroy();
		}, 1000);
	};
	var silentNightText = new Text2('Silent Night', {
		size: 150,
		fill: "#ffffff"
	});
	silentNightText.anchor.set(0.5, 0);
	silentNightText.x = 5 / 2;
	silentNightText.y = 150;
	LK.gui.topCenter.addChild(silentNightText);
	self.generateSnowflakes = function () {
		var snowflakeInterval = LK.setInterval(function () {
			var snowflake = new Snowflake();
			snowflake.x = Math.random() * 2048;
			snowflake.y = Math.random() * 2732;
			self.addChild(snowflake);
		}, 1000);
	};
	LK.setTimeout(function () {
		var fadeOutDuration = 2000;
		var fadeOutStep = 0.05;
		var fadeOutInterval = LK.setInterval(function () {
			silentNightText.alpha -= fadeOutStep;
			if (silentNightText.alpha <= 0) {
				LK.clearInterval(fadeOutInterval);
				silentNightText.destroy();
				self.score = 0;
				self.scoreText = new Text2(self.score.toString(), {
					size: 150,
					fill: "#ffffff"
				});
				self.scoreText.anchor.set(0.5, 0);
				self.scoreText.x = 5 / 2;
				self.scoreText.y = 150;
				LK.gui.topCenter.addChild(self.scoreText);
				self.updateScore = function (score) {
					self.score += score;
					self.scoreText.setText(self.score.toString());
					LK.setScore(self.score);
				};
			}
		}, fadeOutDuration * fadeOutStep);
		self.spawnBadElf();
		LK.setInterval(self.spawnBadElf, Math.random() * (6000 - 3000) + 3000);
		self.generateMistletoes = function () {};
		self.generateMistletoes = function () {
			LK.setTimeout(function () {
				var newMistletoe = new Mistletoe();
				var boundaryOffset = 100;
				newMistletoe.x = Math.random() * (2048 - 2 * boundaryOffset) + boundaryOffset;
				newMistletoe.y = Math.random() * (2732 - 2 * boundaryOffset - newMistletoe.height - 300 - 200 - 500) + boundaryOffset + 200;
				self.addChild(newMistletoe);
			}, 8000);
		};
		LK.setTimeout(function () {
			var reindeer = new Reindeer(self);
			var boundaryOffset = 200;
			reindeer.x = Math.random() < 0.5 ? boundaryOffset : 2048 - boundaryOffset - reindeer.width;
			reindeer.y = Math.random() * (2732 / 2 - boundaryOffset) + boundaryOffset;
			reindeer.arcDirection = Math.random() < 0.5 ? 1 : -1;
			reindeer.arcRadius = 2048 / 2;
			reindeer.arcAngle = Math.random() < 0.5 ? Math.PI : 0;
			reindeer.scale.x = Math.random() < 0.5 ? 1 : -1;
			self.addChild(reindeer);
			LK.on('tick', reindeer.moveInArc.bind(reindeer));
		}, 12000);
		LK.setTimeout(self.generateMistletoes, 8000);
	}, 2000);
	stage.on('move', function (obj) {
		crosshair.move(obj.event);
	});
	stage.on('down', function (obj) {
		if (hearts.length > 0) {
			muzzleFlash.show();
			leftClickPressed = true;
			lastClickTime = LK.ticks;
			if (!barnMovedDown) {
				barnBackground.y += 460;
				room1Background.y += 100;
				boxBackground.y += 100;
				crateBackground.y += 100;
				missBackground.y += 460;
				tireBackground.y += 100;
				barnMovedDown = true;
				if (Math.random() < 0.10) {
					var messages = ["Santa's special delivery!", "This is for the naughty list!", "Ho, ho, ho-hold this!"];
					if (!self.randomTextActive) {
						self.randomTextActive = true;
						var randomText = new RandomText();
						randomText.display(santa.x, santa.y - santa.santaGraphics.height / 2, messages);
						self.addChild(randomText);
					}
				}
			}
			var heart = hearts.pop();
			heart.destroy();
		}
	});
	var room1Background = self.createAsset('Room1', 'Room1 background', 0, 0);
	room1Background.anchor.set(0.5, 0.5);
	room1Background.x = 2048 / 2;
	room1Background.y = 2732 / 2;
	self.addChild(room1Background);
	var tireBackground = self.createAsset('Tire', 'Tire background', 0.5, 0.5);
	tireBackground.anchor.set(0.5, 0.5);
	tireBackground.x = 700;
	tireBackground.y = 1825;
	self.addChild(tireBackground);
	self.respawnMistletoe = function (mistletoe) {
		this.showGreatText(mistletoe.x, mistletoe.y);
		mistletoe.destroy();
		LK.setTimeout(function () {
			var newMistletoe = new Mistletoe();
			var boundaryOffset = 100;
			newMistletoe.x = Math.random() * (2048 - 2 * boundaryOffset) + boundaryOffset;
			newMistletoe.y = Math.random() * (2732 - 2 * boundaryOffset - newMistletoe.height - 300 - 200 - 100 - 500) + boundaryOffset + 300;
			self.addChild(newMistletoe);
		}, Math.random() * (10000 - 5000) + 5000);
	};
	self.generateSnowflakes();
	var missBackground = self.createAsset('Miss', 'Miss background', 0, 0);
	missBackground.anchor.set(0.5, 0.5);
	missBackground.x = 700;
	missBackground.y = 2520;
	var crateBackground = self.createAsset('Crate', 'Crate background', 0, 0);
	crateBackground.anchor.set(0, 1);
	crateBackground.x = 205;
	crateBackground.y = 2645;
	self.addChild(crateBackground);
	var boxBackground = self.createAsset('Box', 'Box background', 0, 0);
	boxBackground.anchor.set(0, 1);
	boxBackground.x = 1350;
	boxBackground.y = 2200;
	self.addChild(boxBackground);
	var barnBackground = self.createAsset('Barn', 'Barn background', 0, 0);
	barnBackground.anchor.set(0.5, 0.5);
	barnBackground.x = 2048 / 2;
	barnBackground.y = 2732 - barnBackground.height / 4 + 900;
	self.addChild(barnBackground);
	self.addChild(missBackground);
	var santa = new Santa();
	santa.x = 2048 - santa.santaGraphics.width / 2;
	santa.y = 2732 - santa.santaGraphics.height / 2;
	self.addChild(santa);
	var spawnLocations = [{
		x: tireBackground.x,
		y: tireBackground.y
	}, {
		x: boxBackground.x,
		y: boxBackground.y
	}, {
		x: crateBackground.x,
		y: crateBackground.y
	}];
	self.activeBadElves = 0;
	self.spawnBadElf = function () {
		if (self.scoreText && self.activeBadElves < 2) {
			var locationIndex = Math.floor(Math.random() * spawnLocations.length);
			var location = spawnLocations.splice(locationIndex, 1)[0];
			if (spawnLocations.length === 0) {
				spawnLocations = [{
					x: tireBackground.x,
					y: tireBackground.y
				}, {
					x: boxBackground.x,
					y: boxBackground.y
				}, {
					x: crateBackground.x,
					y: crateBackground.y
				}];
			}
			var badElf = new BadElf(location.x, location.y, self);
			if (location === spawnLocations[0]) {
				badElf.scale.set(badElf.scale.x * 0.65, badElf.scale.y * 0.65);
			}
			self.addChild(badElf);
			self.activeBadElves++;
			var bulletStartY = badElf.y - badElf.height;
			var bullet = new ElfBullet(badElf.x, bulletStartY, self.santa.x, self.santa.y, self);
			self.addChild(bullet);
			if (badElf && self.santa) {
				var bullet = new ElfBullet(badElf.x, badElf.y, self.santa.x, self.santa.y, self);
				self.addChild(bullet);
				self.activeBadElves++;
			}
			if (badElf && self.santa) {
				var bullet = new ElfBullet(badElf.x, badElf.y, self.santa.x, self.santa.y, self);
				self.addChild(bullet);
				self.activeBadElves++;
			}
		}
	};
	var muzzleFlash = new MuzzleFlash();
	muzzleFlash.x = santa.x - santa.santaGraphics.width + 400;
	muzzleFlash.y = santa.y - 90;
	self.addChild(muzzleFlash);
	self.addChild(santa);
	var crosshair = self.addChild(new Crosshair());
	crosshair.x = 2048 / 2;
	crosshair.y = 2732 / 2;
	var isGameOver = false;
	var tickOffset = 0;
	var leftClickPressed = false;
	var barnMovedDown = false;
	var lastClickTime = 0;
	var playerLives = 6;
	var hearts = [];
	for (var i = 0; i < playerLives; i++) {
		var heart = new Heart();
		heart.x = 1125 + i * (heart.width + 5);
		heart.y = santa.y - santa.santaGraphics.height - heart.height / 2 + 350;
		hearts.push(heart);
		LK.gui.topLeft.addChild(heart);
	}
	LK.on('tick', function () {
		santa.move();
		for (var i = 0; i < self.children.length; i++) {
			var child = self.children[i];
			if (child instanceof Snowflake) {
				child.move();
			} else if (child instanceof Mistletoe) {
				child.bob();
			}
		}
		if (isGameOver) {
			LK.effects.flashScreen(0xff0000, 1000);
			LK.showGameOver();
		}
		if (leftClickPressed && LK.ticks - lastClickTime > 30) {
			barnBackground.y -= 460;
			room1Background.y -= 100;
			boxBackground.y -= 100;
			crateBackground.y -= 100;
			missBackground.y -= 460;
			tireBackground.y -= 100;
			leftClickPressed = false;
			barnMovedDown = false;
			while (hearts.length < playerLives) {
				var heart = new Heart();
				heart.x = 1125 + hearts.length * (heart.width + 5);
				heart.y = santa.y - santa.santaGraphics.height - heart.height / 2 + 350;
				hearts.push(heart);
				LK.gui.topLeft.addChild(heart);
			}
		}
	});
});