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

/**** 
* Classes
****/ 
var Fighter = Container.expand(function (playerNumber, color) {
	var self = Container.call(this);
	var assetName = 'player1';
	if (playerNumber === 2) assetName = 'player2';else if (playerNumber === 3) assetName = 'player3';else if (playerNumber === 4) assetName = 'player4';
	var fighterGraphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 1.0
	});
	self.playerNumber = playerNumber;
	self.velocityX = 0;
	self.velocityY = 0;
	self.onGround = false;
	self.jumpsRemaining = 2; // Allow double jump
	self.health = 0;
	self.maxHealth = 100;
	self.damage = 0; // New damage accumulation property
	self.moveSpeed = 8;
	self.jumpPower = 25;
	self.knockbackResistance = 1.0;
	self.lastHitTime = 0;
	self.invulnerable = false;
	self.lastVelocityX = 0; // Track last velocity for rotation
	// Create damage bar background
	var damageBarBg = self.addChild(LK.getAsset('platform', {
		width: 100,
		height: 12,
		anchorX: 0.5,
		anchorY: 1.0,
		x: 0,
		y: -130
	}));
	damageBarBg.tint = 0x333333;
	damageBarBg.scaleX = 0.8;
	damageBarBg.scaleY = 0.3;
	// Create damage bar fill
	self.damageBar = self.addChild(LK.getAsset('platform', {
		width: 100,
		height: 12,
		anchorX: 0,
		anchorY: 1.0,
		x: -40,
		y: -130
	}));
	self.damageBar.tint = 0xff4444;
	self.damageBar.scaleX = 0;
	self.damageBar.scaleY = 0.3;
	// Create damage text
	self.damageText = self.addChild(new Text2('0%', {
		size: 30,
		fill: 0xFFFFFF,
		stroke: 0x000000,
		strokeThickness: 4
	}));
	self.damageText.anchor.set(0.5, 1);
	self.damageText.x = 0;
	self.damageText.y = -140;
	self.takeDamage = function (damage, knockbackX, knockbackY) {
		if (self.invulnerable) return;
		self.health += damage;
		self.damage += damage; // Accumulate damage for knockback scaling
		// Cap damage at 999%
		if (self.damage > 999) self.damage = 999;
		// Update damage display
		self.damageText.setText(Math.floor(self.damage) + '%');
		// Reapply stroke properties to maintain black background texture
		if (self.damageText.style) {
			self.damageText.style.stroke = 0x000000;
			self.damageText.style.strokeThickness = 4;
		}
		// Update damage bar scale (0 to 1 based on damage up to 200%)
		var barScale = Math.min(self.damage / 200, 1);
		self.damageBar.scaleX = barScale * 0.8;
		// Change bar color based on damage level
		if (self.damage < 50) {
			self.damageBar.tint = 0x44ff44; // Green for low damage
		} else if (self.damage < 100) {
			self.damageBar.tint = 0xffff44; // Yellow for medium damage
		} else if (self.damage < 150) {
			self.damageBar.tint = 0xff8844; // Orange for high damage
		} else {
			self.damageBar.tint = 0xff4444; // Red for very high damage
		}
		// Knockback multiplier based on accumulated damage - more dramatic scaling
		var knockbackMultiplier = 1 + self.damage / 50; // Every 50% damage doubles knockback
		self.velocityX += knockbackX * knockbackMultiplier / self.knockbackResistance;
		self.velocityY += knockbackY * knockbackMultiplier / self.knockbackResistance;
		// Flash effect when hit
		LK.effects.flashObject(self, 0xff0000, 300);
		self.invulnerable = true;
		LK.setTimeout(function () {
			self.invulnerable = false;
		}, 500);
		LK.getSound('hit').play();
	};
	self.attack = function (targetX, targetY) {
		var attackRange = 150;
		var damage = 15;
		var baseKnockback = 12;
		for (var i = 0; i < fighters.length; i++) {
			var target = fighters[i];
			if (target === self) continue;
			var distance = Math.sqrt(Math.pow(target.x - self.x, 2) + Math.pow(target.y - self.y, 2));
			if (distance <= attackRange) {
				var angle = Math.atan2(target.y - self.y, target.x - self.x);
				var knockbackX = Math.cos(angle) * baseKnockback;
				var knockbackY = Math.sin(angle) * baseKnockback - 5; // Slight upward angle
				target.takeDamage(damage, knockbackX, knockbackY);
			}
		}
	};
	self.update = function () {
		// Apply gravity
		if (!self.onGround) {
			self.velocityY += 1.2;
		}
		// Apply friction
		self.velocityX *= 0.85;
		if (self.onGround) {
			self.velocityX *= 0.75;
		}
		// Limit velocities to prevent teleportation
		var maxVelocityX = 20;
		var maxVelocityY = 30;
		if (self.velocityX > maxVelocityX) {
			self.velocityX = maxVelocityX;
		}
		if (self.velocityX < -maxVelocityX) {
			self.velocityX = -maxVelocityX;
		}
		if (self.velocityY > maxVelocityY) {
			self.velocityY = maxVelocityY;
		}
		if (self.velocityY < -maxVelocityY) {
			self.velocityY = -maxVelocityY;
		}
		// Update position
		self.x += self.velocityX;
		self.y += self.velocityY;
		// Rotate player based on movement direction
		if (Math.abs(self.velocityX) > 1) {
			// Only rotate if moving with significant velocity
			if (self.velocityX > 0) {
				// Moving right - face right (normal orientation)
				fighterGraphics.scaleX = Math.abs(fighterGraphics.scaleX);
			} else {
				// Moving left - face left (flip horizontally)
				fighterGraphics.scaleX = -Math.abs(fighterGraphics.scaleX);
			}
		}
		// Platform collision
		var wasOnGround = self.onGround;
		self.onGround = false;
		for (var i = 0; i < platforms.length; i++) {
			var platform = platforms[i];
			// More precise collision detection with tighter bounds
			var platformLeft = platform.x - platform.width / 2 + 10; // Add small margin
			var platformRight = platform.x + platform.width / 2 - 10; // Add small margin
			var platformTop = platform.y - platform.height / 2;
			var platformBottom = platform.y + platform.height / 2;
			// Check if player is within platform horizontal bounds and approaching from above
			if (self.x >= platformLeft && self.x <= platformRight && self.y >= platformTop - 20 && self.y <= platformBottom + 5 && self.velocityY >= 0) {
				// Snap player to exact platform surface
				self.y = platformTop;
				self.velocityY = 0;
				self.onGround = true;
				self.jumpsRemaining = 2; // Reset jumps when landing
				break;
			}
		}
		// Check if fallen off screen
		if (self.y > 2900) {
			self.respawn();
		}
		// Screen boundaries (horizontal bouncing)
		if (self.x < 60) {
			self.x = 60;
			self.velocityX = Math.abs(self.velocityX) * 0.5;
		}
		if (self.x > 1988) {
			self.x = 1988;
			self.velocityX = -Math.abs(self.velocityX) * 0.5;
		}
	};
	self.respawn = function () {
		// Decrease lives for the player who died
		if (self.playerNumber === 1) {
			player1Lives--;
		} else if (self.playerNumber === 2) {
			player2Lives--;
		} else if (self.playerNumber === 3) {
			player3Lives--;
		} else if (self.playerNumber === 4) {
			player4Lives--;
		}
		updateScoreDisplay();
		// Check if player is eliminated (no lives left)
		var isEliminated = false;
		if (self.playerNumber === 1 && player1Lives <= 0) {
			isEliminated = true;
		} else if (self.playerNumber === 2 && player2Lives <= 0) {
			isEliminated = true;
		} else if (self.playerNumber === 3 && player3Lives <= 0) {
			isEliminated = true;
		} else if (self.playerNumber === 4 && player4Lives <= 0) {
			isEliminated = true;
		}
		if (isEliminated) {
			// Remove player from the game
			self.visible = false;
			self.x = -1000; // Move off screen
			self.y = -1000;
			activePlayers--;
			// Check if only one player remains
			if (activePlayers <= 1) {
				// Find the winner
				var winner = "";
				if (player1Lives > 0) winner = "Player 1";else if (player2Lives > 0) winner = "Player 2";else if (player3Lives > 0) winner = "Player 3";else if (player4Lives > 0) winner = "Player 4";
				LK.setScore(100);
				LK.showGameOver();
			}
		} else {
			// Player still has lives, respawn normally
			if (self.playerNumber === 1) {
				self.x = 400;
			} else if (self.playerNumber === 2) {
				self.x = 1648;
			} else if (self.playerNumber === 3) {
				self.x = 700;
			} else if (self.playerNumber === 4) {
				self.x = 1348;
			}
			self.y = 1000;
			self.velocityX = 0;
			self.velocityY = 0;
			self.health = 0;
			self.damage = 0; // Reset damage on respawn
			self.damageText.setText('0%');
			// Reapply stroke properties to maintain black background texture
			if (self.damageText.style) {
				self.damageText.style.stroke = 0x000000;
				self.damageText.style.strokeThickness = 4;
			}
			self.damageBar.scaleX = 0;
			self.damageBar.tint = 0x44ff44;
			self.jumpsRemaining = 2; // Reset jumps on respawn
		}
	};
	return self;
});
var PowerUp = Container.expand(function () {
	var self = Container.call(this);
	var powerupGraphics = self.attachAsset('powerup', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.lifeTime = 0;
	self.maxLifeTime = 600; // 10 seconds at 60fps
	self.collected = false;
	self.update = function () {
		self.lifeTime++;
		self.rotation += 0.05;
		// Bounce effect
		self.y += Math.sin(self.lifeTime * 0.1) * 0.5;
		if (self.lifeTime > self.maxLifeTime) {
			self.destroy();
			for (var i = powerups.length - 1; i >= 0; i--) {
				if (powerups[i] === self) {
					powerups.splice(i, 1);
					break;
				}
			}
		}
		// Check collection by players
		if (!self.collected) {
			for (var i = 0; i < fighters.length; i++) {
				var fighter = fighters[i];
				var distance = Math.sqrt(Math.pow(fighter.x - self.x, 2) + Math.pow(fighter.y - self.y, 2));
				if (distance < 80) {
					self.collected = true;
					fighter.knockbackResistance = 0.5; // Temporary power boost
					LK.setTimeout(function () {
						fighter.knockbackResistance = 1.0;
					}, 5000);
					LK.getSound('powerup').play();
					LK.effects.flashObject(fighter, 0xffd700, 500);
					self.destroy();
					for (var j = powerups.length - 1; j >= 0; j--) {
						if (powerups[j] === self) {
							powerups.splice(j, 1);
							break;
						}
					}
					break;
				}
			}
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x87ceeb
});

/**** 
* Game Code
****/ 
// Game variables
var fighters = [];
var platforms = [];
var powerups = [];
var player1Lives = 3;
var player2Lives = 3;
var player3Lives = 3;
var player4Lives = 3;
var activePlayers = 4;
var draggedFighter = null;
var lastTapTime = 0;
var powerupSpawnTimer = 0;
// Add background image
var backgroundImage = game.addChild(LK.getAsset('background', {
	anchorX: 0,
	anchorY: 0,
	x: 0,
	y: 0
}));
// Add second background image on top of the first
var backgroundOverlay = game.addChild(LK.getAsset('backgroundOverlay', {
	anchorX: 0,
	anchorY: 1,
	x: 0,
	y: 2732
}));
// Button press states
var leftButtonPressed = false;
var rightButtonPressed = false;
var jumpButtonPressed = false;
var attackButtonPressed = false;
// Create platforms
var mainPlatform = game.addChild(LK.getAsset('mainPlatform', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 1400
}));
platforms.push(mainPlatform);
var leftPlatform = game.addChild(LK.getAsset('platform', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 400,
	y: 1100
}));
platforms.push(leftPlatform);
var rightPlatform = game.addChild(LK.getAsset('platform', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1648,
	y: 1100
}));
platforms.push(rightPlatform);
var topPlatform = game.addChild(LK.getAsset('platform', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 800
}));
platforms.push(topPlatform);
// Add decorative textured images directly on top of platforms
var mainPlatformTexture = game.addChild(LK.getAsset('platformTexture', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: 1024,
	y: 1250
}));
mainPlatformTexture.tint = 0x8B4513; // Brown texture color
mainPlatformTexture.scaleX = 2.5; // Scale to match main platform width
mainPlatformTexture.scaleY = 0.8;
var leftPlatformTexture = game.addChild(LK.getAsset('platformTexture', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: 400,
	y: 1000
}));
leftPlatformTexture.tint = 0x228B22; // Green texture color
leftPlatformTexture.scaleX = 1.25; // Scale to match platform width
leftPlatformTexture.scaleY = 0.6;
var rightPlatformTexture = game.addChild(LK.getAsset('platformTexture', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: 1648,
	y: 1000
}));
rightPlatformTexture.tint = 0x4169E1; // Blue texture color
rightPlatformTexture.scaleX = 1.25; // Scale to match platform width
rightPlatformTexture.scaleY = 0.6;
var topPlatformTexture = game.addChild(LK.getAsset('platformTexture', {
	anchorX: 0.5,
	anchorY: 1.0,
	x: 1024,
	y: 700
}));
topPlatformTexture.tint = 0x800080; // Purple texture color
topPlatformTexture.scaleX = 1.25; // Scale to match platform width
topPlatformTexture.scaleY = 0.6;
// Create fighters
var player1 = game.addChild(new Fighter(1));
player1.x = 400;
player1.y = 1000;
fighters.push(player1);
var player2 = game.addChild(new Fighter(2));
player2.x = 1648;
player2.y = 1000;
fighters.push(player2);
var player3 = game.addChild(new Fighter(3));
player3.x = 700;
player3.y = 700;
fighters.push(player3);
var player4 = game.addChild(new Fighter(4));
player4.x = 1348;
player4.y = 700;
fighters.push(player4);
// UI Elements
var scoreText = new Text2('Player 1: 0 | Player 2: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
var instructionText = new Text2('Drag to move, Tap to attack', {
	size: 60,
	fill: 0xFFFFFF
});
instructionText.anchor.set(0.5, 1);
LK.gui.bottom.addChild(instructionText);
// Create left movement button for player 1
var leftButton = new Text2('◀', {
	size: 120,
	fill: 0xFFFFFF
});
leftButton.anchor.set(0, 1);
leftButton.x = 50;
leftButton.y = -160;
LK.gui.bottomLeft.addChild(leftButton);
// Create right movement button for player 1
var rightButton = new Text2('▶', {
	size: 120,
	fill: 0xFFFFFF
});
rightButton.anchor.set(0, 1);
rightButton.x = 280;
rightButton.y = -160;
LK.gui.bottomLeft.addChild(rightButton);
// Create jump button for player 1
var jumpButton = new Text2('▲', {
	size: 120,
	fill: 0xFFFFFF
});
jumpButton.anchor.set(0, 1);
jumpButton.x = 165;
jumpButton.y = -300;
LK.gui.bottomLeft.addChild(jumpButton);
// Create attack button for player 1
var attackButton = new Text2('ATTACK', {
	size: 80,
	fill: 0xFFFFFF
});
attackButton.anchor.set(1, 1);
attackButton.x = -100;
attackButton.y = -20;
LK.gui.bottomRight.addChild(attackButton);
function updateScoreDisplay() {
	scoreText.setText('P1 Lives: ' + player1Lives + ' | P2 Lives: ' + player2Lives + ' | P3 Lives: ' + player3Lives + ' | P4 Lives: ' + player4Lives);
}
// Left button event handler
leftButton.down = function (x, y, obj) {
	leftButtonPressed = true;
	leftButton.alpha = 0.6;
	tween(leftButton, {
		scaleX: 0.9,
		scaleY: 0.9
	}, {
		duration: 100
	});
};
leftButton.up = function (x, y, obj) {
	leftButtonPressed = false;
	leftButton.alpha = 1.0;
	tween(leftButton, {
		scaleX: 1.0,
		scaleY: 1.0
	}, {
		duration: 100
	});
};
// Right button event handler
rightButton.down = function (x, y, obj) {
	rightButtonPressed = true;
	rightButton.alpha = 0.6;
	tween(rightButton, {
		scaleX: 0.9,
		scaleY: 0.9
	}, {
		duration: 100
	});
};
rightButton.up = function (x, y, obj) {
	rightButtonPressed = false;
	rightButton.alpha = 1.0;
	tween(rightButton, {
		scaleX: 1.0,
		scaleY: 1.0
	}, {
		duration: 100
	});
};
// Jump button event handler
jumpButton.down = function (x, y, obj) {
	jumpButtonPressed = true;
	jumpButton.alpha = 0.6;
	tween(jumpButton, {
		scaleX: 0.9,
		scaleY: 0.9
	}, {
		duration: 100
	});
};
jumpButton.up = function (x, y, obj) {
	jumpButtonPressed = false;
	jumpButton.alpha = 1.0;
	tween(jumpButton, {
		scaleX: 1.0,
		scaleY: 1.0
	}, {
		duration: 100
	});
};
// Attack button event handler
attackButton.down = function (x, y, obj) {
	attackButtonPressed = true;
	attackButton.alpha = 0.6;
	tween(attackButton, {
		scaleX: 0.9,
		scaleY: 0.9
	}, {
		duration: 100
	});
};
attackButton.up = function (x, y, obj) {
	attackButtonPressed = false;
	attackButton.alpha = 1.0;
	tween(attackButton, {
		scaleX: 1.0,
		scaleY: 1.0
	}, {
		duration: 100
	});
};
function spawnPowerUp() {
	if (powerups.length < 2) {
		var powerup = game.addChild(new PowerUp());
		var spawnPlatform = platforms[Math.floor(Math.random() * platforms.length)];
		powerup.x = spawnPlatform.x + (Math.random() - 0.5) * (spawnPlatform.width - 100);
		powerup.y = spawnPlatform.y - spawnPlatform.height - 100;
		powerups.push(powerup);
	}
}
// Game controls
game.down = function (x, y, obj) {
	var currentTime = LK.ticks;
	var tapSpeed = 20; // frames between taps for double tap
	// Find closest fighter to touch point (only player 1)
	var closestFighter = null;
	var closestDistance = Infinity;
	for (var i = 0; i < fighters.length; i++) {
		var fighter = fighters[i];
		// Only allow touch control for player 1 if they're still alive
		if (fighter.playerNumber !== 1 || player1Lives <= 0) continue;
		var distance = Math.sqrt(Math.pow(fighter.x - x, 2) + Math.pow(fighter.y - y, 2));
		if (distance < closestDistance && distance < 200) {
			closestDistance = distance;
			closestFighter = fighter;
		}
	}
	if (closestFighter) {
		// Check for double tap (attack)
		if (currentTime - lastTapTime < tapSpeed) {
			closestFighter.attack(x, y);
			draggedFighter = null;
		} else {
			draggedFighter = closestFighter;
		}
		lastTapTime = currentTime;
	}
};
game.move = function (x, y, obj) {
	if (draggedFighter && draggedFighter.playerNumber === 1) {
		var deltaX = x - draggedFighter.x;
		var deltaY = y - draggedFighter.y;
		// Move fighter towards touch point
		draggedFighter.velocityX += deltaX * 0.3;
		// Jump if dragging upward and has jumps remaining
		if (deltaY < -50 && draggedFighter.jumpsRemaining > 0) {
			draggedFighter.velocityY = -draggedFighter.jumpPower;
			draggedFighter.jumpsRemaining--;
			draggedFighter.onGround = false;
		}
	}
};
game.up = function (x, y, obj) {
	draggedFighter = null;
};
// Function to find closest target for AI
function findClosestTarget(aiPlayer) {
	var closestPlayer = null;
	var closestDistance = Infinity;
	for (var i = 0; i < fighters.length; i++) {
		var fighter = fighters[i];
		// Skip self and dead players
		if (fighter === aiPlayer) continue;
		if (fighter.playerNumber === 1 && player1Lives <= 0) continue;
		if (fighter.playerNumber === 2 && player2Lives <= 0) continue;
		if (fighter.playerNumber === 3 && player3Lives <= 0) continue;
		if (fighter.playerNumber === 4 && player4Lives <= 0) continue;
		var distance = Math.sqrt(Math.pow(fighter.x - aiPlayer.x, 2) + Math.pow(fighter.y - aiPlayer.y, 2));
		if (distance < closestDistance) {
			closestDistance = distance;
			closestPlayer = fighter;
		}
	}
	return {
		player: closestPlayer,
		distance: closestDistance
	};
}
// AI variables for player 2
var aiDecisionTimer = 0;
var aiAction = 'idle';
var aiTargetX = player2.x;
var aiCooldown = 0;
// AI variables for player 3
var ai3DecisionTimer = 0;
var ai3Action = 'idle';
var ai3TargetX = 700;
var ai3Cooldown = 0;
// AI variables for player 4
var ai4DecisionTimer = 0;
var ai4Action = 'idle';
var ai4TargetX = 1348;
var ai4Cooldown = 0;
game.update = function () {
	// Handle continuous button presses for player 1 (only if alive)
	if (player1Lives > 0) {
		if (leftButtonPressed) {
			player1.velocityX -= player1.moveSpeed * 0.5;
		}
		if (rightButtonPressed) {
			player1.velocityX += player1.moveSpeed * 0.5;
		}
		if (jumpButtonPressed && player1.jumpsRemaining > 0) {
			player1.velocityY = -player1.jumpPower;
			player1.jumpsRemaining--;
			player1.onGround = false;
			jumpButtonPressed = false; // Prevent continuous jumping
		}
		if (attackButtonPressed) {
			player1.attack(player1.x, player1.y);
			attackButtonPressed = false; // Prevent continuous attacking
		}
	}
	// Spawn power-ups occasionally
	powerupSpawnTimer++;
	if (powerupSpawnTimer > 300) {
		// Every 5 seconds
		if (Math.random() < 0.3) {
			spawnPowerUp();
		}
		powerupSpawnTimer = 0;
	}
	// AI for player 2 (only if alive)
	if (player2Lives > 0) {
		aiDecisionTimer++;
		if (aiCooldown > 0) {
			aiCooldown--;
		}
		// Make AI decisions every 30 frames (half second)
		if (aiDecisionTimer > 30) {
			aiDecisionTimer = 0;
			// Find closest target
			var closestTarget = findClosestTarget(player2);
			var distanceToClosest = closestTarget.distance;
			// Check for nearby powerups
			var nearestPowerup = null;
			var nearestPowerupDistance = Infinity;
			for (var i = 0; i < powerups.length; i++) {
				var powerup = powerups[i];
				var distance = Math.sqrt(Math.pow(powerup.x - player2.x, 2) + Math.pow(powerup.y - player2.y, 2));
				if (distance < nearestPowerupDistance) {
					nearestPowerupDistance = distance;
					nearestPowerup = powerup;
				}
			}
			// AI decision making
			if (aiCooldown === 0 && closestTarget.player) {
				if (distanceToClosest < 200 && Math.random() < 0.8) {
					// Attack if close to closest target
					aiAction = 'attack';
					aiCooldown = 60; // Attack cooldown
				} else if (nearestPowerup && nearestPowerupDistance < 300 && Math.random() < 0.3) {
					// Go for powerup if nearby (lower priority)
					aiAction = 'moveToPowerup';
					aiTargetX = nearestPowerup.x;
				} else if (Math.random() < 0.9) {
					// Chase closest target most of the time
					aiAction = 'moveToPlayer';
					aiTargetX = closestTarget.player.x;
				} else {
					// Random movement (rare)
					aiAction = 'randomMove';
					aiTargetX = 400 + Math.random() * 1248; // Random X within screen bounds
				}
			} else if (!closestTarget.player) {
				aiAction = 'idle';
			}
		}
		// Execute AI actions
		if (aiAction === 'attack' && closestTarget.player) {
			player2.attack(closestTarget.player.x, closestTarget.player.y);
			aiAction = 'idle';
		} else if (aiAction === 'moveToPowerup' || aiAction === 'moveToPlayer' || aiAction === 'randomMove') {
			// Move towards target
			var deltaX = aiTargetX - player2.x;
			if (Math.abs(deltaX) > 50) {
				player2.velocityX += deltaX * 0.2;
			}
			// Jump if target is above or if stuck
			if (aiAction === 'moveToPlayer' && closestTarget && closestTarget.player && closestTarget.player.y < player2.y - 100 || Math.abs(player2.velocityX) < 1 && player2.onGround && Math.random() < 0.1) {
				if (player2.jumpsRemaining > 0) {
					player2.velocityY = -player2.jumpPower;
					player2.jumpsRemaining--;
					player2.onGround = false;
				}
			}
			// Reset action if close enough to target
			if (Math.abs(deltaX) < 100) {
				aiAction = 'idle';
			}
		}
		// AI logic: move to nearest surface when in the air
		if (!player2.onGround) {
			var nearestPlatform = null;
			var nearestDistance = Infinity;
			// Find the nearest platform
			for (var p = 0; p < platforms.length; p++) {
				var platform = platforms[p];
				var distance = Math.sqrt(Math.pow(platform.x - player2.x, 2) + Math.pow(platform.y - player2.y, 2));
				if (distance < nearestDistance) {
					nearestDistance = distance;
					nearestPlatform = platform;
				}
			}
			// Move toward the nearest platform
			if (nearestPlatform) {
				var deltaXToPlatform = nearestPlatform.x - player2.x;
				if (Math.abs(deltaXToPlatform) > 30) {
					player2.velocityX += deltaXToPlatform * 0.15;
				}
			}
		}
		// AI logic: double jump if can't reach player who is much higher
		var heightDifference = player2.y - player1.y;
		var horizontalDistance = Math.abs(player2.x - player1.x);
		if (heightDifference > 200 && horizontalDistance < 400 && player2.jumpsRemaining > 0) {
			// Check if AI is below player and perform double jump to reach them
			player2.velocityY = -player2.jumpPower;
			player2.jumpsRemaining--;
			player2.onGround = false;
		}
		// AI emergency jump if falling off platform
		if (player2.y > 1500 && player2.jumpsRemaining > 0) {
			player2.velocityY = -player2.jumpPower;
			player2.jumpsRemaining--;
			player2.onGround = false;
		}
	}
	// AI for player 3 (only if alive)
	if (player3Lives > 0) {
		ai3DecisionTimer++;
		if (ai3Cooldown > 0) {
			ai3Cooldown--;
		}
		if (ai3DecisionTimer > 45) {
			ai3DecisionTimer = 0;
			// Find closest target
			var closestTarget_3 = findClosestTarget(player3);
			var closestDistance_3 = closestTarget_3.distance;
			if (ai3Cooldown === 0 && closestTarget_3.player) {
				if (closestDistance_3 < 200 && Math.random() < 0.7) {
					ai3Action = 'attack';
					ai3Cooldown = 70;
				} else if (Math.random() < 0.8) {
					// Chase closest target most of the time
					ai3Action = 'moveToPlayer';
					ai3TargetX = closestTarget_3.player.x;
				} else if (Math.random() < 0.3) {
					ai3Action = 'randomMove';
					ai3TargetX = 400 + Math.random() * 1248;
				} else {
					ai3Action = 'idle';
				}
			} else if (!closestTarget_3.player) {
				ai3Action = 'idle';
			}
		}
		if (ai3Action === 'attack' && closestTarget_3.player) {
			player3.attack(closestTarget_3.player.x, closestTarget_3.player.y);
			ai3Action = 'idle';
		} else if (ai3Action === 'moveToPlayer' || ai3Action === 'randomMove') {
			var deltaX_3 = ai3TargetX - player3.x;
			if (Math.abs(deltaX_3) > 50) {
				player3.velocityX += deltaX_3 * 0.18;
			}
			if (Math.abs(deltaX_3) > 200 && player3.onGround && Math.random() < 0.15) {
				if (player3.jumpsRemaining > 0) {
					player3.velocityY = -player3.jumpPower;
					player3.jumpsRemaining--;
					player3.onGround = false;
				}
			}
			if (Math.abs(deltaX_3) < 100) {
				ai3Action = 'idle';
			}
		}
		if (!player3.onGround) {
			var nearestPlatform_3 = null;
			var nearestDistance_3 = Infinity;
			for (var p = 0; p < platforms.length; p++) {
				var platform = platforms[p];
				var distance = Math.sqrt(Math.pow(platform.x - player3.x, 2) + Math.pow(platform.y - player3.y, 2));
				if (distance < nearestDistance_3) {
					nearestDistance_3 = distance;
					nearestPlatform_3 = platform;
				}
			}
			if (nearestPlatform_3) {
				var deltaXToPlatform_3 = nearestPlatform_3.x - player3.x;
				if (Math.abs(deltaXToPlatform_3) > 30) {
					player3.velocityX += deltaXToPlatform_3 * 0.12;
				}
			}
		}
		if (player3.y > 1500 && player3.jumpsRemaining > 0) {
			player3.velocityY = -player3.jumpPower;
			player3.jumpsRemaining--;
			player3.onGround = false;
		}
	}
	// AI for player 4 (only if alive)
	if (player4Lives > 0) {
		ai4DecisionTimer++;
		if (ai4Cooldown > 0) {
			ai4Cooldown--;
		}
		if (ai4DecisionTimer > 35) {
			ai4DecisionTimer = 0;
			// Find closest target
			var closestTarget_4 = findClosestTarget(player4);
			var closestDistance_4 = closestTarget_4.distance;
			if (ai4Cooldown === 0 && closestTarget_4.player) {
				if (closestDistance_4 < 180 && Math.random() < 0.85) {
					ai4Action = 'attack';
					ai4Cooldown = 50;
				} else if (Math.random() < 0.9) {
					// Chase closest target aggressively
					ai4Action = 'moveToPlayer';
					ai4TargetX = closestTarget_4.player.x;
				} else if (Math.random() < 0.4) {
					ai4Action = 'randomMove';
					ai4TargetX = 400 + Math.random() * 1248;
				} else {
					ai4Action = 'idle';
				}
			} else if (!closestTarget_4.player) {
				ai4Action = 'idle';
			}
		}
		if (ai4Action === 'attack' && closestTarget_4.player) {
			player4.attack(closestTarget_4.player.x, closestTarget_4.player.y);
			ai4Action = 'idle';
		} else if (ai4Action === 'moveToPlayer' || ai4Action === 'randomMove') {
			var deltaX_4 = ai4TargetX - player4.x;
			if (Math.abs(deltaX_4) > 50) {
				player4.velocityX += deltaX_4 * 0.22;
			}
			if (Math.abs(deltaX_4) > 150 && player4.onGround && Math.random() < 0.2) {
				if (player4.jumpsRemaining > 0) {
					player4.velocityY = -player4.jumpPower;
					player4.jumpsRemaining--;
					player4.onGround = false;
				}
			}
			if (Math.abs(deltaX_4) < 100) {
				ai4Action = 'idle';
			}
		}
		if (!player4.onGround) {
			var nearestPlatform_4 = null;
			var nearestDistance_4 = Infinity;
			for (var p = 0; p < platforms.length; p++) {
				var platform = platforms[p];
				var distance = Math.sqrt(Math.pow(platform.x - player4.x, 2) + Math.pow(platform.y - player4.y, 2));
				if (distance < nearestDistance_4) {
					nearestDistance_4 = distance;
					nearestPlatform_4 = platform;
				}
			}
			if (nearestPlatform_4) {
				var deltaXToPlatform_4 = nearestPlatform_4.x - player4.x;
				if (Math.abs(deltaXToPlatform_4) > 30) {
					player4.velocityX += deltaXToPlatform_4 * 0.14;
				}
			}
		}
		if (player4.y > 1500 && player4.jumpsRemaining > 0) {
			player4.velocityY = -player4.jumpPower;
			player4.jumpsRemaining--;
			player4.onGround = false;
		}
	}
	// Update all fighters
	for (var i = 0; i < fighters.length; i++) {
		fighters[i].update();
	}
	// Update all powerups
	for (var i = powerups.length - 1; i >= 0; i--) {
		if (powerups[i] && !powerups[i].destroyed) {
			powerups[i].update();
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -341,9 +341,8 @@
 	anchorY: 1,
 	x: 0,
 	y: 2732
 }));
-backgroundOverlay.alpha = 0.7; // Make it semi-transparent to blend with background
 // Button press states
 var leftButtonPressed = false;
 var rightButtonPressed = false;
 var jumpButtonPressed = false;