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

/**** 
* Classes
****/ 
// Best Demon (Ultimate Enemy)
var BestDemon = Container.expand(function () {
	var self = Container.call(this);
	var bestDemonSprite = self.attachAsset('bestdemon', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = bestDemonSprite.width * 0.5;
	self.hp = 120;
	self.shootCooldown = 0;
	self.speed = 2.5;
	self.groundSmashTimer = 0;
	self.weapons = []; // Array to hold weapon sprites
	self.healthBar = new HealthBar();
	self.healthBar.width = 140; // Largest health bar for best demon
	self.healthBar.bgBar.scaleX = self.healthBar.width / 32;
	self.healthBar.hpBar.scaleX = self.healthBar.width / 32;
	game.addChild(self.healthBar);
	// Create visual weapons (bestdemongun) for best demon
	self.updateWeapons = function () {
		// Remove any existing weapons
		for (var i = 0; i < self.weapons.length; i++) {
			self.weapons[i].destroy();
		}
		self.weapons = [];
		// Create 2 bestdemonguns for best demon (double shot)
		for (var i = -0.5; i <= 0.5; i++) {
			var weapon = LK.getAsset('bestdemongun', {
				anchorX: 0.5,
				anchorY: 0.5,
				scaleX: 1.5,
				scaleY: 1.5
			});
			// Position bestdemonguns around best demon
			var angle = Math.atan2(marine.y - self.y, marine.x - self.x) + i * 0.3;
			var radius = self.radius * 1.2;
			weapon.x = Math.cos(angle) * radius;
			weapon.y = Math.sin(angle) * radius;
			weapon.rotation = angle + Math.PI / 2;
			self.addChild(weapon);
			self.weapons.push(weapon);
		}
	};
	self.update = function () {
		// Update health bar
		if (self.healthBar && !self.dead) {
			self.healthBar.updateBar(self.hp, 120);
			self.healthBar.setPosition(self.x, self.y);
		}
		// Move toward marine
		if (marine && !self.dead) {
			var dx = marine.x - self.x;
			var dy = marine.y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist > 1) {
				self.x += dx / dist * self.speed;
				self.y += dy / dist * self.speed;
			}
			// Update weapon positions to match firing direction
			if (self.weapons.length === 0) {
				self.updateWeapons();
			} else {
				for (var i = 0; i < self.weapons.length; i++) {
					var weapon = self.weapons[i];
					var angle = Math.atan2(marine.y - self.y, marine.x - self.x) + (i - 0.5) * 0.3;
					var radius = self.radius * 1.2;
					weapon.x = Math.cos(angle) * radius;
					weapon.y = Math.sin(angle) * radius;
					weapon.rotation = angle + Math.PI / 2;
				}
			}
			// Shoot bestdemonmermi at marine (double shot)
			if (self.shootCooldown > 0) self.shootCooldown--;else if (dist < 1500) {
				for (var i = -0.5; i <= 0.5; i++) {
					var angle = Math.atan2(marine.y - self.y, marine.x - self.x) + i * 0.2;
					var tx = self.x + Math.cos(angle) * 100;
					var ty = self.y + Math.sin(angle) * 100;
					spawnBestDemonBullet(self.x, self.y, tx, ty, 12);
				}
				self.shootCooldown = 40;
			}
		}
	};
	self.hit = function () {
		self.hp--;
		tween(bestDemonSprite, {
			tint: 0xffffff
		}, {
			duration: 60,
			onFinish: function onFinish() {
				tween(bestDemonSprite, {
					tint: 0x8e7602
				}, {
					duration: 100
				});
			}
		});
		if (self.hp <= 0) {
			self.dead = true;
			// Clean up health bar
			if (self.healthBar) {
				self.healthBar.destroy();
			}
			// Add points to score - best demons give triple points
			var points = doublePointsActive ? 300 : 150;
			score += points;
			updateUI();
			// Fade out best demon
			tween(self, {
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	return self;
});
// Best Demon Bullet
var BestDemonBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletSprite = self.attachAsset('bestdemonmermi', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = bulletSprite.width * 0.5;
	self.speed = 16;
	self.dx = 0;
	self.dy = 1;
	self.update = function () {
		self.x += self.dx * self.speed;
		self.y += self.dy * self.speed;
	};
	return self;
});
// Boss Demon
var Boss = Container.expand(function () {
	var self = Container.call(this);
	var bossSprite = self.attachAsset('boss', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = bossSprite.width * 0.5;
	self.hp = 80;
	self.shootCooldown = 0;
	self.speed = 3.5;
	self.groundSmashTimer = 0; // Add this property to track smash cooldown
	self.weapons = []; // Array to hold weapon sprites
	self.healthBar = new HealthBar();
	self.healthBar.width = 120; // Larger health bar for boss
	self.healthBar.bgBar.scaleX = self.healthBar.width / 32;
	self.healthBar.hpBar.scaleX = self.healthBar.width / 32;
	game.addChild(self.healthBar);
	// Create visual weapons (tridents) for boss
	self.updateWeapons = function () {
		// Remove any existing weapons
		for (var i = 0; i < self.weapons.length; i++) {
			self.weapons[i].destroy();
		}
		self.weapons = [];
		// Create 3 tridents for boss (triple shot)
		for (var i = -1; i <= 1; i++) {
			var weapon = LK.getAsset('furca', {
				anchorX: 0.5,
				anchorY: 0.5,
				scaleX: 1.3,
				scaleY: 1.3
			});
			// Position tridents around boss
			var angle = Math.atan2(marine.y - self.y, marine.x - self.x) + i * 0.18;
			var radius = self.radius * 1.1;
			weapon.x = Math.cos(angle) * radius;
			weapon.y = Math.sin(angle) * radius;
			weapon.rotation = angle + Math.PI / 2;
			self.addChild(weapon);
			self.weapons.push(weapon);
		}
	};
	self.update = function () {
		// Update health bar
		if (self.healthBar && !self.dead) {
			self.healthBar.updateBar(self.hp, 80);
			self.healthBar.setPosition(self.x, self.y);
		}
		// Move toward marine
		if (marine && !self.dead) {
			var dx = marine.x - self.x;
			var dy = marine.y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist > 1) {
				self.x += dx / dist * self.speed;
				self.y += dy / dist * self.speed;
			}
			// Update weapon positions to match firing direction
			if (self.weapons.length === 0) {
				self.updateWeapons();
			} else {
				for (var i = 0; i < self.weapons.length; i++) {
					var weapon = self.weapons[i];
					var angle = Math.atan2(marine.y - self.y, marine.x - self.x) + (i - 1) * 0.18;
					var radius = self.radius * 1.1;
					weapon.x = Math.cos(angle) * radius;
					weapon.y = Math.sin(angle) * radius;
					weapon.rotation = angle + Math.PI / 2;
				}
			}
			// Boss ground smash attack every 8 seconds (480 ticks)
			if (typeof self.groundSmashTimer === "undefined") self.groundSmashTimer = 0;
			self.groundSmashTimer++;
			// 3 seconds (180 ticks) before smash, start color warning
			if (self.groundSmashTimer === 300) {
				// Flash red for 1.5 seconds, then orange for 1.5 seconds
				tween(bossSprite, {
					tint: 0xff0000
				}, {
					duration: 90,
					onFinish: function onFinish() {
						tween(bossSprite, {
							tint: 0xffa500
						}, {
							duration: 90,
							onFinish: function onFinish() {
								// Do nothing, color will be reset after smash
							}
						});
					}
				});
			}
			if (self.groundSmashTimer >= 480) {
				self.groundSmashTimer = 0;
				// Visual effect: flash boss and screen
				tween(bossSprite, {
					tint: 0xffffff
				}, {
					duration: 80,
					onFinish: function onFinish() {
						tween(bossSprite, {
							tint: 0x8e44ad
						}, {
							duration: 120
						});
					}
				});
				LK.effects.flashScreen(0xccccff, 200);
				// Damage marine if close to boss (melee range)
				if (marine && !marine.dead && marine.invuln === 0) {
					var smashDist = bossSprite.width * 1.1;
					var mdx = marine.x - self.x;
					var mdy = marine.y - self.y;
					if (mdx * mdx + mdy * mdy < smashDist * smashDist) {
						marine.hp -= 2;
						if (marine.hp < 0) marine.hp = 0;
						marine.invuln = 60;
						marine.flash();
						updateUI();
						if (marine.hp <= 0) {
							// Game over
							gameOver = true;
							LK.effects.flashScreen(0xff0000, 1000);
							LK.showGameOver();
						}
					}
				}
			}
			// Shoot at marine (triple shot)
			if (self.shootCooldown > 0) self.shootCooldown--;else if (dist < 1200) {
				for (var i = -1; i <= 1; i++) {
					var angle = Math.atan2(marine.y - self.y, marine.x - self.x) + i * 0.18;
					var tx = self.x + Math.cos(angle) * 100;
					var ty = self.y + Math.sin(angle) * 100;
					spawnDemonBullet(self.x, self.y, tx, ty, 10);
				}
				self.shootCooldown = 50;
			}
		}
	};
	self.hit = function () {
		self.hp--;
		tween(bossSprite, {
			tint: 0xffffff
		}, {
			duration: 60,
			onFinish: function onFinish() {
				tween(bossSprite, {
					tint: 0x8e44ad
				}, {
					duration: 100
				});
			}
		});
		if (self.hp <= 0) {
			self.dead = true;
			// Clean up health bar
			if (self.healthBar) {
				self.healthBar.destroy();
			}
			// Spawn a shield at boss position
			var shield = new Shield();
			shield.x = self.x;
			shield.y = self.y;
			game.addChild(shield);
			// Add points to score - bosses give double points when health pack effect is active
			var points = doublePointsActive ? 100 : 50;
			score += points;
			updateUI();
			// Create visual effect for shield drop
			tween(shield, {
				y: self.y + 20
			}, {
				duration: 60,
				onFinish: function onFinish() {
					tween(shield, {
						y: self.y
					}, {
						duration: 40
					});
				}
			});
			// Fade out boss
			tween(self, {
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	return self;
});
// Demon (Enemy)
var Demon = Container.expand(function () {
	var self = Container.call(this);
	var demonSprite = self.attachAsset('demon', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = demonSprite.width * 0.5;
	self.hp = 4;
	self.shootCooldown = 0;
	self.speed = 4 + Math.random() * 2;
	self.weapon = null; // Weapon sprite
	self.healthBar = new HealthBar();
	game.addChild(self.healthBar);
	// Create visual weapon (trident) for demon
	self.updateWeapon = function () {
		// Remove existing weapon if any
		if (self.weapon) {
			self.weapon.destroy();
		}
		// Create a furca (trident) for demon
		self.weapon = LK.getAsset('furca', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 1.2,
			scaleY: 1.2
		});
		// Position trident in front of demon
		if (marine) {
			var angle = Math.atan2(marine.y - self.y, marine.x - self.x);
			var radius = self.radius * 1.1;
			self.weapon.x = Math.cos(angle) * radius;
			self.weapon.y = Math.sin(angle) * radius;
			self.weapon.rotation = angle + Math.PI / 2;
		} else {
			self.weapon.x = self.radius;
			self.weapon.y = 0;
		}
		self.addChild(self.weapon);
	};
	self.update = function () {
		// Update health bar
		if (self.healthBar && !self.dead) {
			self.healthBar.updateBar(self.hp, 4);
			self.healthBar.setPosition(self.x, self.y);
		}
		// Move toward marine
		if (marine && !self.dead) {
			var dx = marine.x - self.x;
			var dy = marine.y - self.y;
			var dist = Math.sqrt(dx * dx + dy * dy);
			if (dist > 1) {
				self.x += dx / dist * self.speed;
				self.y += dy / dist * self.speed;
			}
			// Create weapon if it doesn't exist
			if (!self.weapon) {
				self.updateWeapon();
			}
			// Update weapon position to match firing direction
			if (self.weapon) {
				var angle = Math.atan2(marine.y - self.y, marine.x - self.x);
				var radius = self.radius * 1.1;
				self.weapon.x = Math.cos(angle) * radius;
				self.weapon.y = Math.sin(angle) * radius;
				self.weapon.rotation = angle + Math.PI / 2;
			}
			// Shoot at marine
			if (self.shootCooldown > 0) self.shootCooldown--;else if (dist < 900) {
				spawnDemonBullet(self.x, self.y, marine.x, marine.y);
				self.shootCooldown = 90 + Math.floor(Math.random() * 30);
			}
		}
	};
	self.hit = function () {
		self.hp--;
		tween(demonSprite, {
			tint: 0xffffff
		}, {
			duration: 60,
			onFinish: function onFinish() {
				tween(demonSprite, {
					tint: 0xc0392b
				}, {
					duration: 100
				});
			}
		});
		if (self.hp <= 0) {
			self.dead = true;
			// Clean up health bar
			if (self.healthBar) {
				self.healthBar.destroy();
			}
			// If the demon has a weapon, fade it out too
			if (self.weapon) {
				tween(self.weapon, {
					alpha: 0
				}, {
					duration: 200
				});
			}
			tween(self, {
				alpha: 0
			}, {
				duration: 200,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
	};
	return self;
});
// Demon Bullet
var DemonBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletSprite = self.attachAsset('demonBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = bulletSprite.width * 0.5;
	self.speed = 14;
	self.dx = 0;
	self.dy = 1;
	self.update = function () {
		self.x += self.dx * self.speed;
		self.y += self.dy * self.speed;
	};
	return self;
});
// FireParticle for hell effect
var FireParticle = Container.expand(function () {
	var self = Container.call(this);
	var particleSprite = self.attachAsset('fireParticle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.speed = 1 + Math.random() * 3;
	self.lifetime = 60 + Math.random() * 120;
	self.initialAlpha = 0.4 + Math.random() * 0.6;
	self.alpha = self.initialAlpha;
	self.scaleValue = 0.3 + Math.random() * 0.7;
	particleSprite.scale.set(self.scaleValue, self.scaleValue);
	// Random tint between orange and red
	var tintValue = Math.random();
	if (tintValue < 0.3) {
		particleSprite.tint = 0xFF4500; // Orange-Red
	} else if (tintValue < 0.6) {
		particleSprite.tint = 0xFF6347; // Tomato
	} else if (tintValue < 0.9) {
		particleSprite.tint = 0xFF0000; // Red
	} else {
		particleSprite.tint = 0xFFD700; // Gold
	}
	self.update = function () {
		self.y -= self.speed;
		self.lifetime--;
		// Fade out as lifetime decreases
		self.alpha = self.initialAlpha * (self.lifetime / 180);
		if (self.lifetime <= 0) {
			self.destroy();
		}
	};
	return self;
});
// Health Bar
var HealthBar = Container.expand(function () {
	var self = Container.call(this);
	self.maxHp = 1;
	self.currentHp = 1;
	self.width = 80;
	self.height = 8;
	self.offsetY = -80; // Position prominently above entity
	// Create background bar (red)
	self.bgBar = LK.getAsset('marineBullet', {
		anchorX: 0,
		anchorY: 0,
		scaleX: self.width / 32,
		scaleY: self.height / 32
	});
	self.bgBar.tint = 0x8B0000; // Dark red
	self.addChild(self.bgBar);
	// Create health bar (green)
	self.hpBar = LK.getAsset('marineBullet', {
		anchorX: 0,
		anchorY: 0,
		scaleX: self.width / 32,
		scaleY: self.height / 32
	});
	self.hpBar.tint = 0x27AE60; // Green
	self.addChild(self.hpBar);
	self.updateBar = function (currentHp, maxHp) {
		self.currentHp = currentHp;
		self.maxHp = maxHp;
		var healthPercent = Math.max(0, currentHp / maxHp);
		self.hpBar.scaleX = self.width / 32 * healthPercent;
		// Change color based on health percentage
		if (healthPercent > 0.6) {
			self.hpBar.tint = 0x27AE60; // Green
		} else if (healthPercent > 0.3) {
			self.hpBar.tint = 0xF39C12; // Orange
		} else {
			self.hpBar.tint = 0xE74C3C; // Red
		}
	};
	self.setPosition = function (x, y) {
		self.x = x - self.width / 2;
		self.y = y + self.offsetY - 10; // Additional spacing above entity
	};
	return self;
});
// Health Pack
var HealthPack = Container.expand(function () {
	var self = Container.call(this);
	var hpSprite = self.attachAsset('healthPack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = hpSprite.width * 0.5;
	return self;
});
// HellRock for background decoration
var HellRock = Container.expand(function () {
	var self = Container.call(this);
	var rockSprite = self.attachAsset('hellRock', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Randomly adjust rock appearance
	self.scale.set(0.8 + Math.random() * 0.5, 0.8 + Math.random() * 0.5);
	rockSprite.rotation = Math.random() * Math.PI * 2;
	// Random dark colors for rocks
	var darkColors = [0x3D0C02, 0x2F0A02, 0x3B1001, 0x330000];
	rockSprite.tint = darkColors[Math.floor(Math.random() * darkColors.length)];
	return self;
});
// Marine (Player)
var Marine = Container.expand(function () {
	var self = Container.call(this);
	var marineSprite = self.attachAsset('marine', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = marineSprite.width * 0.5;
	self.hp = 1;
	self.invuln = 0; // invulnerability frames
	self.weapons = []; // Array to hold weapon sprites
	self.healthBar = new HealthBar();
	game.addChild(self.healthBar);
	// Create visual weapons based on bullet count
	self.updateWeapons = function (bulletCount) {
		// Remove any existing weapons
		for (var i = 0; i < self.weapons.length; i++) {
			self.weapons[i].destroy();
		}
		self.weapons = [];
		// Create AK47 weapon
		var weapon = LK.getAsset('ak47', {
			anchorX: 0.5,
			anchorY: 0.5,
			scaleX: 1.2,
			scaleY: 1.2
		});
		// Position weapon at marine's side
		var radius = self.radius * 1.3;
		weapon.x = radius;
		weapon.y = 0;
		self.addChild(weapon);
		self.weapons.push(weapon);
	};
	// Define findNearestTarget method at the top of the class
	self.findNearestTarget = function () {
		var minDist = 999999;
		var tx = self.x;
		var ty = self.y - 200; // Default target ahead of marine
		// Check demons first
		if (demons && demons.length > 0) {
			for (var i = 0; i < demons.length; ++i) {
				var d = demons[i];
				if (!d.dead) {
					var dx = d.x - self.x;
					var dy = d.y - self.y;
					var dist = dx * dx + dy * dy;
					if (dist < minDist) {
						minDist = dist;
						tx = d.x;
						ty = d.y;
					}
				}
			}
		}
		// Check boss
		if (boss && !boss.dead) {
			var dx = boss.x - self.x;
			var dy = boss.y - self.y;
			var dist = dx * dx + dy * dy;
			if (dist < minDist) {
				minDist = dist;
				tx = boss.x;
				ty = boss.y;
			}
		}
		// Check best demon
		if (bestDemon && !bestDemon.dead) {
			var dx = bestDemon.x - self.x;
			var dy = bestDemon.y - self.y;
			var dist = dx * dx + dy * dy;
			if (dist < minDist) {
				minDist = dist;
				tx = bestDemon.x;
				ty = bestDemon.y;
			}
		}
		return {
			x: tx,
			y: ty,
			distance: Math.sqrt(minDist)
		};
	};
	self.update = function () {
		if (self.invuln > 0) self.invuln--;
		// Update health bar
		if (self.healthBar) {
			self.healthBar.updateBar(self.hp, marineMaxHP);
			self.healthBar.setPosition(self.x, self.y);
		}
		// Update weapon positions to match bullet fire positions
		if (self.weapons && self.weapons.length > 0) {
			// Get the target for bullet direction
			var target = self.findNearestTarget();
			var tx = target.x;
			var ty = target.y;
			// Calculate direction
			var dx = tx - self.x;
			var dy = ty - self.y;
			var baseAngle = Math.atan2(dy, dx);
			// Position AK47 in firing position
			if (self.weapons.length > 0) {
				var weapon = self.weapons[0];
				// Position AK47 pointing at target
				var angle = baseAngle;
				// Position weapon at firing direction
				var radius = self.radius * 1.1; // Slightly outside marine
				weapon.x = Math.cos(angle) * radius;
				weapon.y = Math.sin(angle) * radius;
				// Rotate weapon to face firing direction
				weapon.rotation = angle + Math.PI / 2;
			}
		}
	};
	// Flash when hit
	self.flash = function () {
		tween(marineSprite, {
			tint: 0xffffff
		}, {
			duration: 80,
			onFinish: function onFinish() {
				tween(marineSprite, {
					tint: 0x3a9ad9
				}, {
					duration: 120
				});
			}
		});
	};
	return self;
});
// Marine Bullet
var MarineBullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletSprite = self.attachAsset('marineBullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.radius = bulletSprite.width * 0.5;
	self.speed = 32;
	self.dx = 0;
	self.dy = -1;
	self.update = function () {
		self.x += self.dx * self.speed;
		self.y += self.dy * self.speed;
	};
	return self;
});
// Shield (Protection)
var Shield = Container.expand(function () {
	var self = Container.call(this);
	var shieldSprite = self.attachAsset('powerUp', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	// Use a different tint for the shield
	shieldSprite.tint = 0x3498db;
	self.radius = shieldSprite.width * 1.1;
	self.duration = 600; // 10 seconds
	self.update = function () {
		self.duration--;
		// Flash purple and green when 5 seconds (300 ticks) remaining
		if (self.duration === 300) {
			// Start color transition sequence
			tween(shieldSprite, {
				tint: 0x9b59b6 // Purple
			}, {
				duration: 150,
				onFinish: function onFinish() {
					tween(shieldSprite, {
						tint: 0x2ecc71 // Green
					}, {
						duration: 150,
						onFinish: function onFinish() {
							// Repeat the color cycle until shield expires
							var flashInterval = LK.setInterval(function () {
								tween(shieldSprite, {
									tint: 0x9b59b6 // Purple
								}, {
									duration: 150,
									onFinish: function onFinish() {
										tween(shieldSprite, {
											tint: 0x2ecc71 // Green
										}, {
											duration: 150
										});
									}
								});
							}, 300);
							// Store interval ID on shield for cleanup
							self.flashInterval = flashInterval;
						}
					});
				}
			});
		}
		if (self.duration <= 0) {
			// Clear flash interval if it exists
			if (self.flashInterval) {
				LK.clearInterval(self.flashInterval);
			}
			tween(self, {
				alpha: 0
			}, {
				duration: 120,
				onFinish: function onFinish() {
					self.destroy();
				}
			});
		}
		// Follow the marine
		if (marine) {
			self.x = marine.x;
			self.y = marine.y;
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x660000
});

/**** 
* Game Code
****/ 
// Hell background elements
// Marine (player)
// Demon (enemy)
// Boss Demon
// Marine bullet
// Demon bullet
// Health pack
// Power-up
var fireParticles = [];
var hellRocks = [];
var particleSpawnTimer = 0;
// Create lava ground background
var lavaGround = LK.getAsset('lavaGround', {
	anchorX: 0,
	anchorY: 0
});
game.addChild(lavaGround);
// Generate initial rocks for hell landscape
function generateHellLandscape() {
	// Create rocks scattered around the arena
	for (var i = 0; i < 15; i++) {
		var rock = new HellRock();
		rock.x = ARENA_LEFT + Math.random() * (ARENA_RIGHT - ARENA_LEFT);
		rock.y = ARENA_TOP + Math.random() * (ARENA_BOTTOM - ARENA_TOP);
		hellRocks.push(rock);
		game.addChild(rock);
	}
}
// Arena bounds
var ARENA_MARGIN = 80;
var ARENA_LEFT = ARENA_MARGIN;
var ARENA_TOP = 180;
var ARENA_RIGHT = 2048 - ARENA_MARGIN;
var ARENA_BOTTOM = 2732 - ARENA_MARGIN;
// Game state
var marine = null;
var demons = [];
var boss = null;
var bestDemon = null;
var marineBullets = [];
var demonBullets = [];
var bestDemonBullets = [];
var healthPacks = [];
var powerUps = [];
var shields = [];
var wave = 1;
var waveTimer = 0;
var spawnTimer = 0;
var bossActive = false;
var dragging = false;
var dragOffsetX = 0;
var dragOffsetY = 0;
var lastMoveX = 0;
var lastMoveY = 0;
var score = 0;
var marineFireTimer = 0;
var marineFireRate = 12; // ticks between shots
var marinePowerTimer = 0;
var marineMaxHP = 1;
var gameOver = false;
var doublePointsActive = false;
var doublePointsTimer = 0;
var doublePointsDuration = 300; // 5 seconds at 60 FPS
var doublePointsIndicator = null; // Visual indicator for double points
// UI
var scoreTxt = new Text2('0', {
	size: 120,
	fill: "#fff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var hpTxt = new Text2('♥♥♥', {
	size: 90,
	fill: 0xE74C3C
});
hpTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(hpTxt);
hpTxt.y = 120;
hpTxt.x = 2048 / 2;
// Timer display in top right corner
var gameStartTime = 0;
var timerTxt = new Text2('00:00', {
	size: 80,
	fill: 0xFFFFFF
});
timerTxt.anchor.set(1, 0); // Right align
LK.gui.topRight.addChild(timerTxt);
timerTxt.x = -20; // Small margin from right edge
timerTxt.y = 20; // Small margin from top
// Center arena
function centerArenaX() {
	return (ARENA_LEFT + ARENA_RIGHT) / 2;
}
function centerArenaY() {
	return (ARENA_TOP + ARENA_BOTTOM) / 2;
}
// Spawn marine
function spawnMarine() {
	marine = new Marine();
	marine.x = centerArenaX();
	marine.y = ARENA_BOTTOM - 220;
	game.addChild(marine);
}
// Spawn demon
function spawnDemon() {
	var d = new Demon();
	// Spawn at random edge
	var edge = Math.floor(Math.random() * 4);
	if (edge === 0) {
		// top
		d.x = ARENA_LEFT + Math.random() * (ARENA_RIGHT - ARENA_LEFT);
		d.y = ARENA_TOP + 40;
	} else if (edge === 1) {
		// bottom
		d.x = ARENA_LEFT + Math.random() * (ARENA_RIGHT - ARENA_LEFT);
		d.y = ARENA_BOTTOM - 40;
	} else if (edge === 2) {
		// left
		d.x = ARENA_LEFT + 40;
		d.y = ARENA_TOP + Math.random() * (ARENA_BOTTOM - ARENA_TOP);
	} else {
		// right
		d.x = ARENA_RIGHT - 40;
		d.y = ARENA_TOP + Math.random() * (ARENA_BOTTOM - ARENA_TOP);
	}
	demons.push(d);
	game.addChild(d);
	// Initialize weapon for the demon
	d.updateWeapon();
}
// Spawn boss
function spawnBoss() {
	boss = new Boss();
	boss.x = centerArenaX();
	boss.y = ARENA_TOP + 200;
	game.addChild(boss);
	bossActive = true;
	// Initialize weapons for the boss
	boss.updateWeapons();
}
// Spawn best demon
function spawnBestDemon() {
	bestDemon = new BestDemon();
	bestDemon.x = centerArenaX();
	bestDemon.y = ARENA_TOP + 150;
	game.addChild(bestDemon);
	// Initialize weapons for the best demon
	bestDemon.updateWeapons();
}
// Spawn marine bullet
function spawnMarineBullet(x, y, dx, dy) {
	var b = new MarineBullet();
	b.x = x;
	b.y = y;
	var mag = Math.sqrt(dx * dx + dy * dy);
	b.dx = dx / mag;
	b.dy = dy / mag;
	marineBullets.push(b);
	game.addChild(b);
}
// Spawn demon bullet
function spawnDemonBullet(x, y, tx, ty, speed) {
	var b = new DemonBullet();
	b.x = x;
	b.y = y;
	var dx = tx - x;
	var dy = ty - y;
	var mag = Math.sqrt(dx * dx + dy * dy);
	b.dx = dx / mag;
	b.dy = dy / mag;
	if (speed) b.speed = speed;
	demonBullets.push(b);
	game.addChild(b);
}
// Spawn best demon bullet
function spawnBestDemonBullet(x, y, tx, ty, speed) {
	var b = new BestDemonBullet();
	b.x = x;
	b.y = y;
	var dx = tx - x;
	var dy = ty - y;
	var mag = Math.sqrt(dx * dx + dy * dy);
	b.dx = dx / mag;
	b.dy = dy / mag;
	if (speed) b.speed = speed;
	bestDemonBullets.push(b);
	game.addChild(b);
}
// Spawn health pack
function spawnHealthPack() {
	var hp = new HealthPack();
	hp.x = ARENA_LEFT + 100 + Math.random() * (ARENA_RIGHT - ARENA_LEFT - 200);
	hp.y = ARENA_TOP + 100 + Math.random() * (ARENA_BOTTOM - ARENA_TOP - 200);
	healthPacks.push(hp);
	game.addChild(hp);
}
// Power-ups have been removed
function spawnPowerUp() {
	// Function kept for compatibility but does nothing
}
// Update UI
function updateUI() {
	scoreTxt.setText(score);
	var hpStr = '';
	for (var i = 0; i < marineMaxHP; ++i) {
		hpStr += i < marine.hp ? '♥' : '♡';
	}
	hpTxt.setText(hpStr);
}
// Start game
function startGame() {
	score = 0;
	wave = 1;
	waveTimer = 0;
	spawnTimer = 0;
	bossActive = false;
	marineFireTimer = 0;
	gameOver = false;
	doublePointsActive = false;
	doublePointsTimer = 0;
	// Clean up double points indicator
	if (doublePointsIndicator) {
		doublePointsIndicator.destroy();
		doublePointsIndicator = null;
	}
	gameStartTime = LK.ticks; // Record game start time
	// Remove all
	for (var i = 0; i < demons.length; ++i) demons[i].destroy();
	for (var i = 0; i < marineBullets.length; ++i) marineBullets[i].destroy();
	for (var i = 0; i < demonBullets.length; ++i) demonBullets[i].destroy();
	for (var i = 0; i < bestDemonBullets.length; ++i) bestDemonBullets[i].destroy();
	for (var i = 0; i < healthPacks.length; ++i) healthPacks[i].destroy();
	// Remove fire particles and rocks
	for (var i = 0; i < fireParticles.length; ++i) fireParticles[i].destroy();
	for (var i = 0; i < hellRocks.length; ++i) hellRocks[i].destroy();
	fireParticles = [];
	hellRocks = [];
	// Remove any active shields and health bars
	for (var i = 0; i < game.children.length; i++) {
		if (game.children[i] instanceof Shield) {
			game.children[i].destroy();
		}
		if (game.children[i] instanceof HealthBar) {
			game.children[i].destroy();
		}
	}
	if (marine) marine.destroy();
	if (boss) boss.destroy();
	if (bestDemon) bestDemon.destroy();
	demons = [];
	marineBullets = [];
	demonBullets = [];
	bestDemonBullets = [];
	healthPacks = [];
	shields = [];
	boss = null;
	bestDemon = null;
	spawnMarine();
	// Initialize marine with 1 weapon
	if (marine) {
		marine.updateWeapons(1);
	}
	updateUI();
}
// Generate initial hell landscape
generateHellLandscape();
startGame();
// Touch controls
game.down = function (x, y, obj) {
	if (gameOver) return;
	// Only drag if touch is inside marine
	var dx = x - marine.x;
	var dy = y - marine.y;
	if (dx * dx + dy * dy < marine.radius * marine.radius * 1.2) {
		dragging = true;
		dragOffsetX = marine.x - x;
		dragOffsetY = marine.y - y;
		lastMoveX = x;
		lastMoveY = y;
	}
};
game.up = function (x, y, obj) {
	dragging = false;
};
game.move = function (x, y, obj) {
	if (gameOver) return;
	// Always follow finger/mouse, clamp to arena
	if (marine) {
		var nx = x;
		var ny = y;
		nx = Math.max(ARENA_LEFT + marine.radius, Math.min(ARENA_RIGHT - marine.radius, nx));
		ny = Math.max(ARENA_TOP + marine.radius, Math.min(ARENA_BOTTOM - marine.radius, ny));
		marine.x = nx;
		marine.y = ny;
		lastMoveX = x;
		lastMoveY = y;
	}
};
// Main update loop
game.update = function () {
	if (gameOver) return;
	// Update timer display
	var elapsedTicks = LK.ticks - gameStartTime;
	var elapsedSeconds = Math.floor(elapsedTicks / 60);
	var minutes = Math.floor(elapsedSeconds / 60);
	var seconds = elapsedSeconds % 60;
	var timeStr = (minutes < 10 ? '0' : '') + minutes + ':' + (seconds < 10 ? '0' : '') + seconds;
	timerTxt.setText(timeStr);
	// Update fire particles (hellish effect)
	particleSpawnTimer--;
	if (particleSpawnTimer <= 0) {
		// Spawn new fire particles
		for (var i = 0; i < 3; i++) {
			var particle = new FireParticle();
			particle.x = ARENA_LEFT + Math.random() * (ARENA_RIGHT - ARENA_LEFT);
			particle.y = ARENA_BOTTOM - Math.random() * 100;
			fireParticles.push(particle);
			game.addChild(particle);
		}
		particleSpawnTimer = 2 + Math.floor(Math.random() * 3);
	}
	// Update existing fire particles
	for (var i = fireParticles.length - 1; i >= 0; i--) {
		fireParticles[i].update();
		if (fireParticles[i].lifetime <= 0) {
			fireParticles.splice(i, 1);
		}
	}
	// Update marine
	if (marine) marine.update();
	// Update double points timer
	if (doublePointsActive) {
		// Create indicator if it doesn't exist
		if (!doublePointsIndicator) {
			doublePointsIndicator = LK.getAsset('2xpo', {
				anchorX: 0.5,
				anchorY: 0.5,
				scaleX: 0.8,
				scaleY: 0.8
			});
			game.addChild(doublePointsIndicator);
		}
		// Position indicator next to marine
		if (marine && doublePointsIndicator) {
			doublePointsIndicator.x = marine.x + marine.radius * 1.5;
			doublePointsIndicator.y = marine.y - marine.radius * 0.5;
		}
		doublePointsTimer--;
		if (doublePointsTimer <= 0) {
			doublePointsActive = false;
			doublePointsTimer = 0; // Reset timer to ensure clean state
			// Remove indicator when effect ends
			if (doublePointsIndicator) {
				doublePointsIndicator.destroy();
				doublePointsIndicator = null;
			}
		}
	} else {
		// Ensure indicator is removed when double points is not active
		if (doublePointsIndicator) {
			doublePointsIndicator.destroy();
			doublePointsIndicator = null;
		}
	}
	// Update demons
	for (var i = demons.length - 1; i >= 0; --i) {
		var d = demons[i];
		d.update();
		if (d.dead) {
			demons.splice(i, 1);
			var points = doublePointsActive ? 20 : 10; // Double points if active
			score += points;
			updateUI();
			// Chance to drop health
			if (Math.random() < 0.08) spawnHealthPack();
		}
	}
	// Update boss
	if (boss) {
		boss.update();
		if (boss.dead) {
			bossActive = false;
			boss = null;
			// Score is now added in the boss.hit method
			wave++;
			waveTimer = 0;
		}
		// Marine takes damage when touching boss
		if (marine && !marine.dead && marine.invuln === 0 && !boss.dead) {
			var dx = marine.x - boss.x;
			var dy = marine.y - boss.y;
			var r = marine.radius + boss.radius;
			if (dx * dx + dy * dy < r * r) {
				marine.hp--;
				if (marine.hp < 0) marine.hp = 0;
				marine.invuln = 60;
				marine.flash();
				updateUI();
				if (marine.hp <= 0) {
					gameOver = true;
					LK.effects.flashScreen(0xff0000, 1000);
					LK.showGameOver();
				}
			}
		}
	}
	// Update best demon
	if (bestDemon) {
		bestDemon.update();
		if (bestDemon.dead) {
			bestDemon = null;
			wave++;
			waveTimer = 0;
		}
		// Marine takes damage when touching best demon
		if (marine && !marine.dead && marine.invuln === 0 && !bestDemon.dead) {
			var dx = marine.x - bestDemon.x;
			var dy = marine.y - bestDemon.y;
			var r = marine.radius + bestDemon.radius;
			if (dx * dx + dy * dy < r * r) {
				marine.hp--;
				if (marine.hp < 0) marine.hp = 0;
				marine.invuln = 60;
				marine.flash();
				updateUI();
				if (marine.hp <= 0) {
					gameOver = true;
					LK.effects.flashScreen(0xff0000, 1000);
					LK.showGameOver();
				}
			}
		}
	}
	// Spawn best demon when score reaches 500 or more
	if (!bestDemon && score >= 500) {
		spawnBestDemon();
	}
	// Update marine bullets
	for (var i = marineBullets.length - 1; i >= 0; --i) {
		var b = marineBullets[i];
		b.update();
		// Remove if out of bounds
		if (b.x < ARENA_LEFT - 60 || b.x > ARENA_RIGHT + 60 || b.y < ARENA_TOP - 60 || b.y > ARENA_BOTTOM + 60) {
			b.destroy();
			marineBullets.splice(i, 1);
			continue;
		}
		// Hit demons
		var hit = false;
		for (var j = demons.length - 1; j >= 0; --j) {
			var d = demons[j];
			var dx = b.x - d.x;
			var dy = b.y - d.y;
			var r = b.radius + d.radius;
			if (dx * dx + dy * dy < r * r) {
				d.hit();
				hit = true;
				break;
			}
		}
		// Hit boss
		if (!hit && boss) {
			var dx = b.x - boss.x;
			var dy = b.y - boss.y;
			var r = b.radius + boss.radius;
			if (dx * dx + dy * dy < r * r) {
				boss.hit();
				hit = true;
			}
		}
		// Hit best demon
		if (!hit && bestDemon) {
			var dx = b.x - bestDemon.x;
			var dy = b.y - bestDemon.y;
			var r = b.radius + bestDemon.radius;
			if (dx * dx + dy * dy < r * r) {
				bestDemon.hit();
				hit = true;
			}
		}
		if (hit) {
			b.destroy();
			marineBullets.splice(i, 1);
		}
	}
	// Update demon bullets
	for (var i = demonBullets.length - 1; i >= 0; --i) {
		var b = demonBullets[i];
		b.update();
		// Remove if out of bounds
		if (b.x < ARENA_LEFT - 60 || b.x > ARENA_RIGHT + 60 || b.y < ARENA_TOP - 60 || b.y > ARENA_BOTTOM + 60) {
			b.destroy();
			demonBullets.splice(i, 1);
			continue;
		}
		// Hit marine
		if (marine && marine.invuln === 0) {
			var dx = b.x - marine.x;
			var dy = b.y - marine.y;
			var r = b.radius + marine.radius;
			if (dx * dx + dy * dy < r * r) {
				b.destroy();
				demonBullets.splice(i, 1);
				// Check if a shield is protecting the marine
				var hasShield = false;
				for (var j = 0; j < game.children.length; j++) {
					if (game.children[j] instanceof Shield) {
						hasShield = true;
						// Destroy shield immediately when hit
						if (game.children[j].flashInterval) {
							LK.clearInterval(game.children[j].flashInterval);
						}
						// Flash shield effect and destroy it
						tween(game.children[j], {
							alpha: 0
						}, {
							duration: 120,
							onFinish: function onFinish(obj) {
								obj.destroy();
							}
						});
						break;
					}
				}
				if (!hasShield) {
					marine.hp--;
					marine.invuln = 60;
					marine.flash();
					updateUI();
					if (marine.hp <= 0) {
						// Game over
						gameOver = true;
						LK.effects.flashScreen(0xff0000, 1000);
						LK.showGameOver();
					}
				}
			}
		}
	}
	// Update best demon bullets
	for (var i = bestDemonBullets.length - 1; i >= 0; --i) {
		var b = bestDemonBullets[i];
		b.update();
		// Remove if out of bounds
		if (b.x < ARENA_LEFT - 60 || b.x > ARENA_RIGHT + 60 || b.y < ARENA_TOP - 60 || b.y > ARENA_BOTTOM + 60) {
			b.destroy();
			bestDemonBullets.splice(i, 1);
			continue;
		}
		// Hit marine
		if (marine && marine.invuln === 0) {
			var dx = b.x - marine.x;
			var dy = b.y - marine.y;
			var r = b.radius + marine.radius;
			if (dx * dx + dy * dy < r * r) {
				b.destroy();
				bestDemonBullets.splice(i, 1);
				// Check if a shield is protecting the marine
				var hasShield = false;
				for (var j = 0; j < game.children.length; j++) {
					if (game.children[j] instanceof Shield) {
						hasShield = true;
						// Destroy shield immediately when hit
						if (game.children[j].flashInterval) {
							LK.clearInterval(game.children[j].flashInterval);
						}
						// Flash shield effect and destroy it
						tween(game.children[j], {
							alpha: 0
						}, {
							duration: 120,
							onFinish: function onFinish(obj) {
								obj.destroy();
							}
						});
						break;
					}
				}
				if (!hasShield) {
					marine.hp--;
					marine.invuln = 60;
					marine.flash();
					updateUI();
					if (marine.hp <= 0) {
						// Game over
						gameOver = true;
						LK.effects.flashScreen(0xff0000, 1000);
						LK.showGameOver();
					}
				}
			}
		}
	}
	// Update health packs
	for (var i = healthPacks.length - 1; i >= 0; --i) {
		var hp = healthPacks[i];
		if (marine) {
			var dx = hp.x - marine.x;
			var dy = hp.y - marine.y;
			var r = hp.radius + marine.radius;
			if (dx * dx + dy * dy < r * r) {
				if (marine.hp < marineMaxHP) {
					marine.hp++;
				}
				// Activate double points for 10 seconds
				doublePointsActive = true;
				doublePointsTimer = doublePointsDuration;
				updateUI();
				hp.destroy();
				healthPacks.splice(i, 1);
			}
		}
	}
	// Power-ups have been removed
	// Marine auto-fire
	if (marine) {
		marineFireTimer--;
		if (marineFireTimer <= 0) {
			marineFireTimer = marineFireRate;
			// Auto-targeting: find nearest enemy
			var target = marine.findNearestTarget();
			var tx = target.x;
			var ty = target.y;
			// Fire
			// Calculate bullets based on score - 1 bullet base + 1 extra per 500 points
			var totalBullets = 1 + Math.floor(score / 500);
			// Make sure marine has an AK47
			if (marine.weapons.length === 0) {
				marine.updateWeapons(1);
			}
			var dx = tx - marine.x;
			var dy = ty - marine.y;
			var baseAngle = Math.atan2(dy, dx);
			for (var n = 0; n < totalBullets; ++n) {
				// Spread out extra bullets a bit
				var offset = (n - (totalBullets - 1) / 2) * 0.12;
				var angle = baseAngle + offset;
				var ddx = Math.cos(angle);
				var ddy = Math.sin(angle);
				spawnMarineBullet(marine.x, marine.y, ddx, ddy, false);
			}
		}
	}
	// Wave logic
	if (!bossActive) {
		// Spawn demons
		if (demons.length < Math.min(3 + wave, 8)) {
			spawnTimer--;
			if (spawnTimer <= 0) {
				spawnDemon();
				spawnTimer = 120 + Math.floor(Math.random() * 60); // Increased timer for slower demon spawning
			}
		}
		// Next wave
		if (demons.length === 0 && !boss && waveTimer > 60) {
			if (score >= 100 && score < 490 && Math.floor(score / 100) > Math.floor((score - (doublePointsActive ? 20 : 10)) / 100)) {
				spawnBoss();
			} else {
				wave++;
				waveTimer = 0;
			}
		}
		waveTimer++;
	} else {
		// Wait for boss defeat
		if (boss && boss.dead) {
			bossActive = false;
			boss = null;
			wave++;
			waveTimer = 0;
		}
	}
	// Randomly spawn health packs
	if (LK.ticks % 420 === 0 && Math.random() < 0.5) {
		spawnHealthPack();
	}
	// Pulsate lava ground for hellish effect
	if (LK.ticks % 120 === 0) {
		var targetTint = Math.random() < 0.5 ? 0x990000 : 0x660000;
		tween(lavaGround, {
			tint: targetTint
		}, {
			duration: 1000,
			easing: tween.easeInOut
		});
	}
};
// Reset game on game over
LK.on('gameover', function () {
	startGame();
});