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

/**** 
* Classes
****/ 
var Bone = Container.expand(function () {
	var self = Container.call(this);
	var boneGraphics = self.attachAsset('bone', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 8;
	self.direction = 1; // 1 for right, -1 for left
	self.creationTime = LK.ticks; // Track when bone was created
	self.update = function () {
		self.x += self.speed * self.direction;
	};
	return self;
});
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	self.bulletType = 'orange'; // 'orange' or 'blue'
	self.speed = 6;
	self.directionX = 0;
	self.directionY = 0;
	self.creationTime = LK.ticks; // Track when bullet was created
	var bulletGraphics;
	if (self.bulletType === 'orange') {
		bulletGraphics = self.attachAsset('orangeBullet', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	} else {
		bulletGraphics = self.attachAsset('blueBullet', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	}
	self.update = function () {
		if (self.isChasing) {
			// Update direction to chase chara
			var dx = chara.x - self.x;
			var dy = chara.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			if (distance > 0) {
				self.directionX = dx / distance * 0.8;
				self.directionY = dy / distance * 0.8;
			}
		}
		if (self.gravityEffect) {
			// Add gravity effect
			self.directionY += 0.02;
		}
		self.x += self.speed * self.directionX;
		self.y += self.speed * self.directionY;
	};
	return self;
});
var Chara = Container.expand(function () {
	var self = Container.call(this);
	var charaGraphics = self.attachAsset('chara', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.health = 100;
	self.maxHealth = 100;
	self.invulnerable = false;
	self.canAttack = true;
	self.takeDamage = function (damage) {
		if (!self.invulnerable) {
			self.health -= damage;
			self.invulnerable = true;
			// Flash red when hit
			LK.effects.flashObject(self, 0xff0000, 500);
			LK.getSound('hit').play();
			// Brief invulnerability period
			LK.setTimeout(function () {
				self.invulnerable = false;
			}, 1000);
			if (self.health <= 0) {
				LK.showGameOver();
			}
		}
	};
	return self;
});
var GasterBlaster = Container.expand(function () {
	var self = Container.call(this);
	var blasterGraphics = self.attachAsset('sans', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	blasterGraphics.scaleX = 1.5;
	blasterGraphics.scaleY = 1.5;
	self.chargingTime = 0;
	self.isCharging = true;
	self.isFiring = false;
	self.laserBeam = null;
	self.creationTime = LK.ticks;
	self.update = function () {
		if (self.isCharging) {
			self.chargingTime++;
			// Flash white while charging
			if (self.chargingTime % 10 < 5) {
				blasterGraphics.tint = 0xFFFFFF;
			} else {
				blasterGraphics.tint = 0xFFFFFF;
			}
			// Start firing after 2 seconds
			if (self.chargingTime >= 120) {
				self.startFiring();
			}
		}
	};
	self.startFiring = function () {
		self.isCharging = false;
		self.isFiring = true;
		blasterGraphics.tint = 0xFFFFFF;
		// Create laser beam
		self.laserBeam = LK.getAsset('healthBar', {
			anchorX: 0,
			anchorY: 0.5,
			width: 2048,
			height: 20
		});
		self.laserBeam.x = self.x;
		self.laserBeam.y = self.y;
		self.laserBeam.tint = 0xFFFF00;
		game.addChild(self.laserBeam);
		// Fire for 1 second then destroy
		LK.setTimeout(function () {
			if (self.laserBeam) {
				self.laserBeam.destroy();
			}
			self.destroy();
		}, 1000);
	};
	return self;
});
var Sans = Container.expand(function () {
	var self = Container.call(this);
	var sansGraphics = self.attachAsset('sans', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.health = 100;
	self.phase = 1;
	self.attackTimer = 0;
	self.isAttacking = false;
	self.update = function () {
		self.attackTimer++;
		// Trigger attack patterns based on timer
		if (self.attackTimer % 120 === 0 && !self.isAttacking) {
			self.startAttack();
		}
	};
	self.startAttack = function () {
		self.isAttacking = true;
		// Reset attack timer for next attack
		LK.setTimeout(function () {
			self.isAttacking = false;
		}, 2000);
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Game state variables
var gamePhase = 1;
var attackPattern = 0;
var patternTimer = 0;
var survivalTime = 0;
// Battle area setup
var battleArea = game.addChild(LK.getAsset('battleArea', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 1800
}));
// Create characters
var chara = game.addChild(new Chara());
chara.x = 1024;
chara.y = 1750;
var sans = game.addChild(new Sans());
sans.x = 1024;
sans.y = 1400;
// Health UI
var healthBg = LK.getAsset('healthBg', {
	anchorX: 0.5,
	anchorY: 0,
	x: 0,
	y: 100
});
LK.gui.top.addChild(healthBg);
var healthBar = LK.getAsset('healthBar', {
	anchorX: 0.5,
	anchorY: 0,
	x: 0,
	y: 100
});
LK.gui.top.addChild(healthBar);
// Score display
var scoreText = new Text2('Time: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.topRight.addChild(scoreText);
scoreText.x = -150;
scoreText.y = 50;
// Attack arrays
var bones = [];
var bullets = [];
var gasterBlasters = [];
// Drag controls
var isDragging = false;
game.down = function (x, y, obj) {
	isDragging = true;
	chara.x = x;
	chara.y = Math.max(y, 1600); // Keep in battle area
};
game.move = function (x, y, obj) {
	if (isDragging) {
		chara.x = Math.max(100, Math.min(1948, x)); // Keep within screen bounds
		chara.y = Math.max(1600, Math.min(2000, y)); // Keep in battle area
	}
};
game.up = function (x, y, obj) {
	isDragging = false;
};
// Attack pattern functions
function createBoneWall() {
	var numBones = 5;
	var startY = 1500;
	var spacing = 80;
	for (var i = 0; i < numBones; i++) {
		var bone = new Bone();
		bone.x = -100;
		bone.y = startY + i * spacing;
		bone.direction = 1;
		bones.push(bone);
		game.addChild(bone);
	}
	LK.getSound('attack').play();
}
function createBulletSpiral() {
	var centerX = 1024;
	var centerY = 1500;
	var numBullets = 8;
	for (var i = 0; i < numBullets; i++) {
		var bullet = new Bullet();
		bullet.bulletType = i % 2 === 0 ? 'orange' : 'blue';
		bullet.x = centerX;
		bullet.y = centerY;
		var angle = i / numBullets * Math.PI * 2;
		bullet.directionX = Math.cos(angle);
		bullet.directionY = Math.sin(angle);
		bullets.push(bullet);
		game.addChild(bullet);
	}
	LK.getSound('attack').play();
}
function createRandomBullets() {
	var numBullets = 6;
	for (var i = 0; i < numBullets; i++) {
		var bullet = new Bullet();
		bullet.bulletType = Math.random() > 0.5 ? 'orange' : 'blue';
		bullet.x = Math.random() * 1800 + 124;
		bullet.y = 1300;
		// Aim towards chara
		var dx = chara.x - bullet.x;
		var dy = chara.y - bullet.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		bullet.directionX = dx / distance;
		bullet.directionY = dy / distance;
		bullets.push(bullet);
		game.addChild(bullet);
	}
	LK.getSound('attack').play();
}
function createBoneSlam() {
	// Create bones falling from top
	var numBones = 8;
	for (var i = 0; i < numBones; i++) {
		var bone = new Bone();
		bone.x = 200 + i * 200;
		bone.y = 1200;
		bone.direction = 0;
		bone.speed = 0;
		bone.rotation = Math.PI / 2; // Horizontal
		bones.push(bone);
		game.addChild(bone);
		// Animate slam down with tween
		tween(bone, {
			y: 1900
		}, {
			duration: 800,
			easing: tween.easeIn
		});
	}
	LK.getSound('attack').play();
}
function createTeleportBones() {
	// Sans teleports bones around the battle area
	var positions = [{
		x: 300,
		y: 1600
	}, {
		x: 700,
		y: 1700
	}, {
		x: 1100,
		y: 1650
	}, {
		x: 1500,
		y: 1750
	}, {
		x: 1800,
		y: 1600
	}];
	for (var i = 0; i < positions.length; i++) {
		var bone = new Bone();
		bone.x = positions[i].x;
		bone.y = positions[i].y;
		bone.direction = 0;
		bone.speed = 0;
		bone.alpha = 0;
		bones.push(bone);
		game.addChild(bone);
		// Fade in effect
		tween(bone, {
			alpha: 1
		}, {
			duration: 500,
			easing: tween.easeOut
		});
	}
	LK.getSound('attack').play();
}
function createGravityWave() {
	// Create a wave of bullets that curve downward
	var numBullets = 12;
	var startX = 100;
	for (var i = 0; i < numBullets; i++) {
		var bullet = new Bullet();
		bullet.bulletType = 'blue';
		bullet.x = startX + i * 150;
		bullet.y = 1400;
		bullet.directionX = 0.3;
		bullet.directionY = 0.1;
		bullet.gravityEffect = true;
		bullets.push(bullet);
		game.addChild(bullet);
	}
	LK.getSound('attack').play();
}
function createCircularTrap() {
	// Create a circle of bones that closes in
	var numBones = 16;
	var centerX = 1024;
	var centerY = 1700;
	var radius = 600;
	for (var i = 0; i < numBones; i++) {
		var bone = new Bone();
		var angle = i / numBones * Math.PI * 2;
		bone.x = centerX + Math.cos(angle) * radius;
		bone.y = centerY + Math.sin(angle) * radius;
		bone.direction = 0;
		bone.speed = 0;
		bone.rotation = angle + Math.PI / 2;
		bones.push(bone);
		game.addChild(bone);
		// Move bones inward
		tween(bone, {
			x: centerX + Math.cos(angle) * 200,
			y: centerY + Math.sin(angle) * 200
		}, {
			duration: 2000,
			easing: tween.easeInOut
		});
	}
	LK.getSound('attack').play();
}
function createBulletWave() {
	// Horizontal wave of bullets
	var numBullets = 10;
	for (var i = 0; i < numBullets; i++) {
		var bullet = new Bullet();
		bullet.bulletType = i % 3 === 0 ? 'orange' : 'blue';
		bullet.x = -50;
		bullet.y = 1500 + Math.sin(i * 0.5) * 100;
		bullet.directionX = 1;
		bullet.directionY = Math.sin(i * 0.8) * 0.3;
		bullet.speed = 4 + i * 0.2;
		bullets.push(bullet);
		game.addChild(bullet);
	}
	LK.getSound('attack').play();
}
function createChasingBullets() {
	// Bullets that follow chara's position
	var numBullets = 4;
	for (var i = 0; i < numBullets; i++) {
		var bullet = new Bullet();
		bullet.bulletType = 'orange';
		bullet.x = 200 + i * 400;
		bullet.y = 1300;
		bullet.isChasing = true;
		bullet.speed = 2;
		bullets.push(bullet);
		game.addChild(bullet);
	}
	LK.getSound('attack').play();
}
function createGasterBlasters() {
	// Create multiple Gaster Blasters that charge and fire laser beams
	var numBlasters = 3;
	var positions = [{
		x: 300,
		y: 1500
	}, {
		x: 1024,
		y: 1300
	}, {
		x: 1700,
		y: 1600
	}];
	for (var i = 0; i < numBlasters; i++) {
		var blaster = new GasterBlaster();
		blaster.x = positions[i % positions.length].x;
		blaster.y = positions[i % positions.length].y;
		gasterBlasters.push(blaster);
		game.addChild(blaster);
		// Stagger the blaster appearances
		tween(blaster, {
			alpha: 1,
			scaleX: 1,
			scaleY: 1
		}, {
			duration: 500,
			easing: tween.easeOut
		});
	}
	LK.getSound('attack').play();
}
game.update = function () {
	survivalTime++;
	patternTimer++;
	// Update score display
	var timeSeconds = Math.floor(survivalTime / 60);
	scoreText.setText('Time: ' + timeSeconds + 's');
	LK.setScore(timeSeconds);
	// Update health bar
	var healthPercent = chara.health / chara.maxHealth;
	healthBar.scaleX = healthPercent;
	// Trigger attack patterns
	if (patternTimer % 180 === 0) {
		// Every 3 seconds
		attackPattern = Math.floor(Math.random() * 10);
		switch (attackPattern) {
			case 0:
				createBoneWall();
				break;
			case 1:
				createBulletSpiral();
				break;
			case 2:
				createRandomBullets();
				break;
			case 3:
				createBoneSlam();
				break;
			case 4:
				createTeleportBones();
				break;
			case 5:
				createGravityWave();
				break;
			case 6:
				createCircularTrap();
				break;
			case 7:
				createBulletWave();
				break;
			case 8:
				createChasingBullets();
				break;
			case 9:
				createGasterBlasters();
				break;
		}
	}
	// Update and check bones
	for (var i = bones.length - 1; i >= 0; i--) {
		var bone = bones[i];
		// Check collision with chara
		if (bone.intersects(chara)) {
			chara.takeDamage(20);
		}
		// Remove bones after 5 seconds (5 seconds = 300 ticks at 60fps)
		if (LK.ticks - bone.creationTime >= 300) {
			bone.destroy();
			bones.splice(i, 1);
			continue;
		}
		// Remove off-screen bones
		if (bone.x > 2200 || bone.x < -200) {
			bone.destroy();
			bones.splice(i, 1);
		}
	}
	// Update and check bullets
	for (var j = bullets.length - 1; j >= 0; j--) {
		var bullet = bullets[j];
		// Check collision with chara
		if (bullet.intersects(chara)) {
			chara.takeDamage(15);
			bullet.destroy();
			bullets.splice(j, 1);
			continue;
		}
		// Remove bullets after 5 seconds (5 seconds = 300 ticks at 60fps)
		if (LK.ticks - bullet.creationTime >= 300) {
			bullet.destroy();
			bullets.splice(j, 1);
			continue;
		}
		// Remove off-screen bullets
		if (bullet.x > 2200 || bullet.x < -200 || bullet.y > 2800 || bullet.y < -100) {
			bullet.destroy();
			bullets.splice(j, 1);
		}
	}
	// Update and check Gaster Blasters
	for (var k = gasterBlasters.length - 1; k >= 0; k--) {
		var blaster = gasterBlasters[k];
		// Check laser beam collision with chara
		if (blaster.isFiring && blaster.laserBeam && blaster.laserBeam.intersects(chara)) {
			chara.takeDamage(25);
		}
		// Remove blasters after 5 seconds
		if (LK.ticks - blaster.creationTime >= 300) {
			if (blaster.laserBeam) {
				blaster.laserBeam.destroy();
			}
			blaster.destroy();
			gasterBlasters.splice(k, 1);
		}
	}
	// Win condition - survive for 2 minutes (7200 ticks)
	if (survivalTime >= 7200) {
		LK.showYouWin();
	}
	// Increase difficulty over time
	if (survivalTime % 1800 === 0) {
		// Every 30 seconds
		gamePhase++;
		// Reduce pattern delay for increased difficulty
		if (patternTimer % 120 === 0) {
			patternTimer = 60; // Faster attacks
		}
	}
};