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

/**** 
* Classes
****/ 
var Enemy = Container.expand(function () {
	var self = Container.call(this);
	var enemyGraphics = self.attachAsset('enemy', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.health = 50;
	self.maxHealth = 50;
	self.moveSpeed = 1;
	self.attackCooldown = 0;
	self.isAttacking = false;
	self.direction = 1; // 1 for right, -1 for left
	self.attackRange = 120;
	self.update = function () {
		// Move towards hero
		var distanceToHero = Math.abs(self.x - hero.x);
		if (distanceToHero > self.attackRange) {
			if (self.x < hero.x) {
				self.x += self.moveSpeed;
				self.direction = 1;
				enemyGraphics.scaleX = 1; // Face right
			} else {
				self.x -= self.moveSpeed;
				self.direction = -1;
				enemyGraphics.scaleX = -1; // Face left
			}
		} else {
			// Attack hero
			if (self.attackCooldown <= 0) {
				self.attack();
				self.attackCooldown = 90;
			}
		}
		if (self.attackCooldown > 0) {
			self.attackCooldown--;
		}
		// Keep enemy in bounds
		if (self.x < 0) {
			self.x = 0;
		}
		if (self.x > 2048) {
			self.x = 2048;
		}
	};
	self.attack = function () {
		self.isAttacking = true;
		// Flash enemy when attacking
		enemyGraphics.tint = 0xFF0000;
		LK.setTimeout(function () {
			enemyGraphics.tint = 0xFFFFFF;
		}, 200);
		// Check if hero is in range and deal damage
		var distanceToHero = Math.abs(self.x - hero.x);
		if (distanceToHero <= self.attackRange) {
			hero.takeDamage(10);
		}
		LK.setTimeout(function () {
			self.isAttacking = false;
		}, 300);
	};
	self.takeDamage = function (damage) {
		self.health -= damage;
		LK.effects.flashObject(self, 0xFFFFFF, 200);
		if (self.health <= 0) {
			LK.setScore(LK.getScore() + 100);
			return true; // Enemy is dead
		}
		return false;
	};
	return self;
});
var HealthPack = Container.expand(function () {
	var self = Container.call(this);
	var healthGraphics = self.attachAsset('healthPack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.bobOffset = 0;
	self.update = function () {
		// Bobbing animation
		self.bobOffset += 0.1;
		self.y += Math.sin(self.bobOffset) * 0.5;
		// Check collision with hero
		if (self.intersects(hero)) {
			hero.heal(30);
			LK.getSound('powerUpSound').play();
			LK.setScore(LK.getScore() + 50);
			return true; // Mark for removal
		}
		// Remove if off screen
		if (self.x < -100 || self.x > 2148) {
			return true;
		}
		return false;
	};
	return self;
});
var Hero = Container.expand(function () {
	var self = Container.call(this);
	var heroGraphics = self.attachAsset('hero', {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.health = 100;
	self.maxHealth = 100;
	self.isAttacking = false;
	self.attackCooldown = 0;
	self.invulnerable = false;
	self.invulnerableTime = 0;
	self.moveSpeed = 2;
	self.horizontalSpeed = 5;
	self.jumpPower = 15;
	self.velocityY = 0;
	self.gravity = 0.8;
	self.isOnGround = true;
	self.groundY = 2732;
	self.direction = 1; // 1 for right, -1 for left
	self.moveLeft = function () {
		self.x -= self.horizontalSpeed;
		self.direction = -1;
		heroGraphics.scaleX = -1; // Flip sprite to face left
	};
	self.moveRight = function () {
		self.x += self.horizontalSpeed;
		self.direction = 1;
		heroGraphics.scaleX = 1; // Face right (normal)
	};
	self.jump = function () {
		if (self.isOnGround) {
			self.velocityY = -self.jumpPower;
			self.isOnGround = false;
		}
	};
	self.turnTowardsNearestEnemy = function () {
		var nearestDistance = Infinity;
		var nearestEnemy = null;
		for (var i = 0; i < enemies.length; i++) {
			var distance = Math.abs(enemies[i].x - self.x);
			if (distance < nearestDistance) {
				nearestDistance = distance;
				nearestEnemy = enemies[i];
			}
		}
		if (nearestEnemy) {
			if (nearestEnemy.x < self.x && self.direction === 1) {
				// Enemy is to the left, turn left
				self.direction = -1;
				heroGraphics.scaleX = -1;
			} else if (nearestEnemy.x > self.x && self.direction === -1) {
				// Enemy is to the right, turn right
				self.direction = 1;
				heroGraphics.scaleX = 1;
			}
		}
	};
	self.punch = function () {
		if (self.attackCooldown <= 0 && !self.isAttacking) {
			self.turnTowardsNearestEnemy(); // Turn to face nearest enemy before attacking
			self.isAttacking = true;
			self.attackCooldown = 30;
			// Create punch effect
			var punchEffect = new PunchEffect();
			punchEffect.setDirection(self.direction); // Set punch effect direction
			punchEffect.x = self.x + 80 * self.direction; // Direction-based positioning
			punchEffect.y = self.y - 80;
			game.addChild(punchEffect);
			punchEffects.push(punchEffect);
			LK.getSound('punch').play();
			// Flash hero white briefly
			heroGraphics.tint = 0xFFFFFF;
			LK.setTimeout(function () {
				heroGraphics.tint = 0xFFFFFF;
			}, 100);
		}
	};
	self.uppercut = function () {
		if (self.attackCooldown <= 0 && !self.isAttacking) {
			self.turnTowardsNearestEnemy(); // Turn to face nearest enemy before attacking
			self.isAttacking = true;
			self.attackCooldown = 45;
			// Create uppercut effect
			var punchEffect = new PunchEffect();
			punchEffect.setDirection(self.direction); // Set punch effect direction
			punchEffect.x = self.x + 80 * self.direction; // Direction-based positioning
			punchEffect.y = self.y - 120;
			game.addChild(punchEffect);
			punchEffects.push(punchEffect);
			LK.getSound('punch').play();
			// Jump effect
			tween(self, {
				y: self.y - 50
			}, {
				duration: 200,
				easing: tween.easeOut
			});
			tween(self, {
				y: self.y
			}, {
				duration: 200,
				easing: tween.easeIn
			});
		}
	};
	self.lowKick = function () {
		if (self.attackCooldown <= 0 && !self.isAttacking) {
			self.turnTowardsNearestEnemy(); // Turn to face nearest enemy before attacking
			self.isAttacking = true;
			self.attackCooldown = 35;
			// Create kick effect
			var punchEffect = new PunchEffect();
			punchEffect.setDirection(self.direction); // Set punch effect direction
			punchEffect.x = self.x + 90 * self.direction; // Direction-based positioning
			punchEffect.y = self.y - 40;
			game.addChild(punchEffect);
			punchEffects.push(punchEffect);
			LK.getSound('punch').play();
		}
	};
	self.takeDamage = function (damage) {
		if (!self.invulnerable) {
			self.health -= damage;
			self.invulnerable = true;
			self.invulnerableTime = 60;
			// Flash red when taking damage
			LK.effects.flashObject(self, 0xFF0000, 500);
			if (self.health <= 0) {
				self.health = 0;
				LK.showGameOver();
			}
		}
	};
	self.heal = function (amount) {
		self.health = Math.min(self.health + amount, self.maxHealth);
	};
	self.update = function () {
		// Apply gravity and jumping physics
		if (!self.isOnGround) {
			self.velocityY += self.gravity;
			self.y += self.velocityY;
			// Check if landed
			if (self.y >= self.groundY) {
				self.y = self.groundY;
				self.velocityY = 0;
				self.isOnGround = true;
			}
		}
		// Update cooldowns
		if (self.attackCooldown > 0) {
			self.attackCooldown--;
		} else {
			self.isAttacking = false;
		}
		if (self.invulnerableTime > 0) {
			self.invulnerableTime--;
			if (self.invulnerableTime <= 0) {
				self.invulnerable = false;
			}
		}
		// Keep hero in bounds
		if (self.x > 2048 - 100) {
			self.x = 2048 - 100;
		}
		if (self.x < 100) {
			self.x = 100;
		}
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerGraphics = self.attachAsset('powerUp', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.bobOffset = 0;
	self.rotationSpeed = 0.05;
	self.update = function () {
		// Rotating and bobbing animation
		self.bobOffset += 0.1;
		self.y += Math.sin(self.bobOffset) * 0.5;
		powerGraphics.rotation += self.rotationSpeed;
		// Check collision with hero
		if (self.intersects(hero)) {
			// Apply speed boost effect
			var originalSpeed = hero.horizontalSpeed;
			var originalMoveSpeed = hero.moveSpeed;
			// Increase speed by 2x
			hero.horizontalSpeed *= 2;
			hero.moveSpeed *= 2;
			// Flash hero to show speed boost is active
			tween(hero, {
				tint: 0x00FF00
			}, {
				duration: 200
			});
			// Reset speed after 5 seconds
			LK.setTimeout(function () {
				hero.horizontalSpeed = originalSpeed;
				hero.moveSpeed = originalMoveSpeed;
				// Flash back to normal
				tween(hero, {
					tint: 0xFFFFFF
				}, {
					duration: 200
				});
			}, 5000);
			LK.getSound('powerUpSound').play();
			LK.setScore(LK.getScore() + 200);
			return true; // Mark for removal
		}
		// Remove if off screen
		if (self.x < -100 || self.x > 2148) {
			return true;
		}
		return false;
	};
	return self;
});
var PunchEffect = Container.expand(function () {
	var self = Container.call(this);
	var punchGraphics = self.attachAsset('punch', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.lifetime = 20;
	self.direction = 1; // Default direction
	self.setDirection = function (dir) {
		self.direction = dir;
		if (dir === -1) {
			punchGraphics.scaleX = -1; // Flip for left direction
		} else {
			punchGraphics.scaleX = 1; // Normal for right direction
		}
	};
	self.update = function () {
		self.lifetime--;
		punchGraphics.alpha = self.lifetime / 20;
		if (self.lifetime <= 0) {
			return true; // Mark for removal
		}
		return false;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x34495E
});

/**** 
* Game Code
****/ 
var hero;
var enemies = [];
var punchEffects = [];
var healthPacks = [];
var powerUps = [];
var enemySpawnTimer = 0;
var powerUpSpawnTimer = 0;
var scrollOffset = 0;
var lastGestureTime = 0;
var gestureThreshold = 10;
// Create background
var background = game.attachAsset('background', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
});
// Create hero
hero = game.addChild(new Hero());
hero.x = 200;
hero.y = 2732; // Position at bottom of screen
// Create UI elements
var healthBar = new Text2('Health: 100', {
	size: 60,
	fill: 0x27AE60
});
healthBar.anchor.set(0, 0);
LK.gui.topLeft.addChild(healthBar);
var scoreText = new Text2('Score: 0', {
	size: 60,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
var comboText = new Text2('', {
	size: 80,
	fill: 0xF39C12
});
comboText.anchor.set(0.5, 0);
comboText.y = 100;
LK.gui.top.addChild(comboText);
// Game variables
var comboCount = 0;
var comboTimer = 0;
var lastHitTime = 0;
// Touch controls
var touchStartX = 0;
var touchStartY = 0;
var touchStartTime = 0;
var isHolding = false;
var holdTimer = 0;
// Movement controls
var leftPressed = false;
var rightPressed = false;
var jumpPressed = false;
game.down = function (x, y, obj) {
	touchStartX = x;
	touchStartY = y;
	touchStartTime = LK.ticks;
	isHolding = true;
	holdTimer = 0;
	// Determine if touch is for movement or combat
	if (x < 2048 / 3) {
		// Left third of screen - move left
		leftPressed = true;
	} else if (x > 2048 * 2 / 3) {
		// Right third of screen - move right
		rightPressed = true;
	}
	// Middle third reserved for combat actions
};
game.up = function (x, y, obj) {
	if (!isHolding) return;
	var deltaX = x - touchStartX;
	var deltaY = y - touchStartY;
	var holdDuration = LK.ticks - touchStartTime;
	isHolding = false;
	// Reset movement flags
	leftPressed = false;
	rightPressed = false;
	// Handle combat gestures only if in middle third of screen
	if (touchStartX >= 2048 / 3 && touchStartX <= 2048 * 2 / 3) {
		// Check for hold gesture (power attack)
		if (holdDuration > 30) {
			hero.uppercut();
			return;
		}
		// Check for swipe gestures
		if (Math.abs(deltaX) > gestureThreshold || Math.abs(deltaY) > gestureThreshold) {
			if (Math.abs(deltaY) > Math.abs(deltaX)) {
				if (deltaY < -gestureThreshold) {
					// Swipe up - jump
					hero.jump();
				} else if (deltaY > gestureThreshold) {
					// Swipe down - low kick
					hero.lowKick();
				}
			}
		} else {
			// Tap - punch
			hero.punch();
		}
	} else {
		// Handle jump for left/right areas on swipe up
		if (deltaY < -gestureThreshold && Math.abs(deltaY) > Math.abs(deltaX)) {
			hero.jump();
		}
	}
};
// Spawn enemies
function spawnEnemy() {
	var enemy = new Enemy();
	// Random spawn position (left or right side)
	if (Math.random() > 0.5) {
		enemy.x = -100;
	} else {
		enemy.x = 2148;
	}
	enemy.y = 2732; // Position at bottom of screen
	// Scale enemy speed based on game time (every 30 seconds = 1800 ticks)
	var timeMultiplier = Math.floor(LK.ticks / 1800);
	enemy.moveSpeed = 1 + timeMultiplier * 0.3; // Base speed 1, increases by 0.3 every 30 seconds
	enemies.push(enemy);
	game.addChild(enemy);
}
// Spawn health pack
function spawnHealthPack() {
	var healthPack = new HealthPack();
	healthPack.x = Math.random() * 1800 + 124;
	healthPack.y = 2650; // Position closer to bottom of screen
	healthPacks.push(healthPack);
	game.addChild(healthPack);
}
// Spawn power up
function spawnPowerUp() {
	var powerUp = new PowerUp();
	powerUp.x = Math.random() * 1800 + 124;
	powerUp.y = 2600; // Position closer to bottom of screen
	powerUps.push(powerUp);
	game.addChild(powerUp);
}
// Update combo system
function updateCombo() {
	if (comboTimer > 0) {
		comboTimer--;
		if (comboTimer <= 0) {
			comboCount = 0;
			comboText.setText('');
		}
	}
}
// Check punch collisions
function checkPunchCollisions() {
	for (var i = punchEffects.length - 1; i >= 0; i--) {
		var punch = punchEffects[i];
		for (var j = enemies.length - 1; j >= 0; j--) {
			var enemy = enemies[j];
			if (punch.intersects(enemy)) {
				if (enemy.takeDamage(25)) {
					// Enemy defeated
					enemy.destroy();
					enemies.splice(j, 1);
					// Update combo
					comboCount++;
					comboTimer = 180;
					if (comboCount > 1) {
						comboText.setText('COMBO x' + comboCount);
						LK.setScore(LK.getScore() + comboCount * 50);
					}
					LK.getSound('enemyHit').play();
				}
				break;
			}
		}
	}
}
// Start background music
LK.playMusic('bgMusic');
// Main game loop
game.update = function () {
	// Handle continuous movement
	if (leftPressed) {
		hero.moveLeft();
	}
	if (rightPressed) {
		hero.moveRight();
	}
	// Update combo system
	updateCombo();
	// Spawn enemies
	enemySpawnTimer++;
	if (enemySpawnTimer >= 180) {
		spawnEnemy();
		enemySpawnTimer = 0;
	}
	// Spawn power-ups occasionally
	powerUpSpawnTimer++;
	if (powerUpSpawnTimer >= 600) {
		if (Math.random() > 0.7) {
			spawnHealthPack();
		} else {
			spawnPowerUp();
		}
		powerUpSpawnTimer = 0;
	}
	// Update punch effects
	for (var i = punchEffects.length - 1; i >= 0; i--) {
		if (punchEffects[i].update()) {
			punchEffects[i].destroy();
			punchEffects.splice(i, 1);
		}
	}
	// Update enemies
	for (var i = enemies.length - 1; i >= 0; i--) {
		// Remove enemies that are too far off screen
		if (enemies[i].x < -200 || enemies[i].x > 2248) {
			enemies[i].destroy();
			enemies.splice(i, 1);
		}
	}
	// Update health packs
	for (var i = healthPacks.length - 1; i >= 0; i--) {
		if (healthPacks[i].update()) {
			healthPacks[i].destroy();
			healthPacks.splice(i, 1);
		}
	}
	// Update power ups
	for (var i = powerUps.length - 1; i >= 0; i--) {
		if (powerUps[i].update()) {
			powerUps[i].destroy();
			powerUps.splice(i, 1);
		}
	}
	// Check punch collisions
	checkPunchCollisions();
	// Update UI
	healthBar.setText('Health: ' + hero.health);
	scoreText.setText('Score: ' + LK.getScore());
	// Win condition
	if (LK.getScore() >= 5000) {
		LK.showYouWin();
	}
	// Increase difficulty over time
	if (LK.ticks % 1800 === 0) {
		enemySpawnTimer = Math.max(60, enemySpawnTimer - 10);
		// Gradually increase all existing enemies' speed
		for (var i = 0; i < enemies.length; i++) {
			var enemy = enemies[i];
			var newSpeed = enemy.moveSpeed + 0.3; // Increase speed by 0.3 every 30 seconds
			// Use tween to smoothly transition to new speed over 2 seconds
			tween(enemy, {
				moveSpeed: newSpeed
			}, {
				duration: 2000,
				easing: tween.easeOut
			});
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -479,8 +479,11 @@
 	} else {
 		enemy.x = 2148;
 	}
 	enemy.y = 2732; // Position at bottom of screen
+	// Scale enemy speed based on game time (every 30 seconds = 1800 ticks)
+	var timeMultiplier = Math.floor(LK.ticks / 1800);
+	enemy.moveSpeed = 1 + timeMultiplier * 0.3; // Base speed 1, increases by 0.3 every 30 seconds
 	enemies.push(enemy);
 	game.addChild(enemy);
 }
 // Spawn health pack
@@ -603,6 +606,18 @@
 	}
 	// Increase difficulty over time
 	if (LK.ticks % 1800 === 0) {
 		enemySpawnTimer = Math.max(60, enemySpawnTimer - 10);
+		// Gradually increase all existing enemies' speed
+		for (var i = 0; i < enemies.length; i++) {
+			var enemy = enemies[i];
+			var newSpeed = enemy.moveSpeed + 0.3; // Increase speed by 0.3 every 30 seconds
+			// Use tween to smoothly transition to new speed over 2 seconds
+			tween(enemy, {
+				moveSpeed: newSpeed
+			}, {
+				duration: 2000,
+				easing: tween.easeOut
+			});
+		}
 	}
 };
\ No newline at end of file