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

/**** 
* Classes
****/ 
// Import the tween plugin
var Drone = Container.expand(function () {
	var self = Container.call(this);
	var droneGraphics = LK.getAsset('drone', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	var shadowDrone = LK.getAsset('drone', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.shadowOffset = {
		x: -30,
		y: 40
	}; // Define shadow offset property
	shadowDrone.alpha = 0.5;
	shadowDrone.tint = 0x000000;
	shadowDrone.x = -10;
	shadowDrone.y = 40;
	self.addChild(shadowDrone);
	self.droneScanLaser = LK.getAsset('droneScanLaser', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.droneScanBar = LK.getAsset('droneScanBar', {
		anchorX: 0,
		anchorY: 0.5
	});
	self.droneScanLaser.visible = true; // Always visible
	self.droneScanLaser.x = droneGraphics.width * 2;
	self.droneScanLaser.alpha = 0.3; // Set alpha to 0.3
	self.addChild(self.droneScanLaser);
	self.droneScanBar.x = droneGraphics.width / 2; // droneScanLaser.x; 
	self.droneScanBar.blendMode = 3;
	self.droneScanBar.y = self.droneScanLaser.y;
	self.addChild(self.droneScanBar);
	function loopScanLaserTint() {
		tween(self.droneScanLaser, {
			tint: 0x00FF00
		}, {
			duration: 1000,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(self.droneScanLaser, {
					tint: 0x00AA00
				}, {
					duration: 1000,
					easing: tween.easeInOut,
					onFinish: loopScanLaserTint // Recursively call to loop
				});
			}
		});
	}
	function animateScanBar() {
		tween(self.droneScanBar, {
			alpha: 0.3,
			rotation: Math.PI / 6.5
		}, {
			duration: 1000,
			easing: tween.easeInOut,
			onFinish: function onFinish() {
				tween(self.droneScanBar, {
					alpha: 0.6,
					rotation: -Math.PI / 6.5
				}, {
					duration: 1000,
					easing: tween.easeInOut,
					onFinish: animateScanBar // Recursively call to loop
				}); // Ensure the tween is started
			}
		}); // Ensure the tween is started
	}
	self.init = function () {
		animateScanBar(); // Start the loop
		loopScanLaserTint(); // Start the loop
		self.selectTarget();
	};
	self.addChild(droneGraphics);
	self.speed = 5;
	self.state = 'scanning'; // Possible states: scanning, attacking
	// Add debug text to track drone state
	self.debugText = new Text2(self.state, {
		size: 50,
		fill: 0xFFFFFF
	});
	self.debugText.x = -droneGraphics.width / 2;
	self.debugText.y = -droneGraphics.height / 2 - 30;
	self.addChild(self.debugText);
	self.fireRange = 300; // Example fire range value
	self.currentTargetIndex = 0;
	self.target = {
		x: 0,
		y: 0
	};
	self.lastKnightCheckTime = 0; // Track when we last checked for knight intersection
	self.selectTarget = function () {
		var newTargetIndex;
		do {
			newTargetIndex = Math.floor(Math.random() * corners.length);
		} while (newTargetIndex === self.currentTargetIndex);
		self.currentTargetIndex = newTargetIndex;
		self.target = corners[newTargetIndex];
		var distance = Math.sqrt(Math.pow(self.target.x - self.x, 2) + Math.pow(self.target.y - self.y, 2));
		var moveSpeed = 0.2; // Adjust this value to control drone speed
		var duration = distance / moveSpeed; // Calculate duration based on distance and speed
		// Calculate rotation angle before starting movement
		var dx = self.target.x - self.x;
		var dy = self.target.y - self.y;
		tween(self, {
			rotation: Math.atan2(dy, dx)
		}, {
			duration: 1000,
			easing: tween.easeInOut,
			onUpdate: function onUpdate() {
				shadowDrone.x = self.shadowOffset.x * Math.cos(self.rotation);
				shadowDrone.y = self.shadowOffset.y * Math.sin(self.rotation);
			},
			onFinish: function onFinish() {
				if (self && self.target) {
					tween(self, {
						x: self.target.x,
						y: self.target.y
					}, {
						duration: duration,
						easing: tween.easeInOut,
						onFinish: function onFinish() {
							self.selectTarget();
						}
					});
				}
			}
		});
	};
	self.update = function () {
		self.debugText.setText(self.state); // Update debug text with current state
		if (self.state === 'attacking') {
			self.debugText.tint = 0xFFA500; // Change tint to orange when attacking
			self.droneScanLaser.tint = 0xFFA500; // Change tint to orange when attacking
		} else {
			self.debugText.tint = 0xFFFFFF; // Reset tint to white for other states
			self.droneScanLaser.tint = 0x00FF00; // Reset tint to green for scanning mode
		}
		if (self.state === 'scanning') {
			self.updateScanning();
		} else if (self.state === 'attacking') {
			self.updateAttacking();
		}
		// Update shadow position
		shadowDrone.x = self.shadowOffset.x * Math.cos(self.rotation);
		shadowDrone.y = self.shadowOffset.y * Math.sin(self.rotation);
	};
	// Handle scanning mode behavior
	self.updateScanning = function () {
		// Check for intersection with knight
		if (self.droneScanBar.intersects(knight.boundingBox)) {
			self.state = 'attacking';
			log("Drone switched to attacking mode!");
			// Call followKnight once when state changes to attacking
			self.followKnight();
			return;
		}
		// We don't need the distance calculation and threshold check anymore
		// since the tween handles movement and calls selectTarget when done
		// We still want to update rotation during movement for a more natural look
		if (self.target) {
			var dx = self.target.x - self.x;
			var dy = self.target.y - self.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			// Only update rotation if not very close to target
			if (distance > 10) {
				var targetAngle = Math.atan2(dy, dx);
				// Use the dedicated updateRotation function for smooth rotation
				self.updateRotation(targetAngle, 200, function () {
					// Update droneScanBar width based on its rotation
					self.droneScanBar.width = 620 * (1 + 0.33 * Math.abs(Math.sin(self.droneScanBar.rotation)));
				});
			}
		}
	};
	// Handle attacking mode behavior
	self.updateAttacking = function () {
		// Check every 2 seconds if scan laser still intersects with knight
		var currentTime = Date.now();
		if (currentTime - self.lastKnightCheckTime > 2000) {
			// 2000ms = 2 seconds
			self.lastKnightCheckTime = currentTime;
			// Check if knight is still in range
			if (!self.droneScanLaser.intersects(knight.boundingBox)) {
				log("Knight lost! Returning to scanning mode.");
				self.state = 'scanning';
				// Stop any current movement
				tween.stop(self);
				// Reset tint and other properties
				self.droneScanLaser.tint = 0x00FF00;
				// Explicitly clear the knight as target
				self.target = null;
				// Perform a 360° rotation before returning to scanning mode
				// Calculate duration based on a consistent rotation speed
				var scanRotationSpeed = 1.0; // Radians per second (slower for scanning)
				var fullRotationDuration = Math.PI * 2 / scanRotationSpeed * 1000; // ms
				// Store current rotation
				var startRotation = self.rotation;
				tween(self, {
					rotation: startRotation + Math.PI * 2 // Full 360° rotation
				}, {
					duration: fullRotationDuration,
					// Use calculated duration for consistent speed
					easing: tween.linear,
					// Linear easing for constant speed
					onFinish: function onFinish() {
						// Wait a short time before selecting a new target
						// This prevents any leftover movement from the attacking mode
						LK.setTimeout(function () {
							// Resume normal patrol behavior and select a new random corner
							// The timeout ensures we're fully out of the attacking mode
							if (self.state === 'scanning') {
								// This double-check is necessary to ensure we truly switch modes
								self.target = null; // Clear any existing target again
								self.selectTarget();
							}
						}, 100);
					}
				});
			} else {
				log("Knight still in range.");
				// Ensure drone is still following the knight
				// Use the distanceToKnight method instead of calculating directly
				var distance = self.distanceToKnight();
				// If knight has moved significantly, update position
				if (distance > 550) {
					log("Knight moved - updating drone position");
					self.followKnight();
				}
			}
		}
	};
	self.followKnight = function () {
		// Cancel any existing movement tweens
		tween.stop(self);
		// Start following the knight
		self.moveTowardKnight();
	};
	// Function to calculate distance to knight
	self.distanceToKnight = function () {
		var dx = knight.x - self.x;
		var dy = knight.y - self.y;
		return Math.sqrt(dx * dx + dy * dy);
	};
	// Function to update drone rotation to face a target angle
	self.updateRotation = function (targetAngle, maxDuration, callback) {
		maxDuration = maxDuration || 500; // Default max duration if not specified
		// Calculate the angle difference
		var angleDiff = calculateAngleDiff(targetAngle, self.rotation);
		var absDiff = Math.abs(angleDiff);
		// Calculate duration based on angle difference to achieve constant rotation speed
		// Use radians per second as the speed unit
		var rotationSpeed = 3; // Radians per second (adjust as needed)
		var duration = Math.min(absDiff / rotationSpeed * 1000, maxDuration);
		// Ensure a minimum duration for very small rotations
		duration = Math.max(duration, 50);
		var targetRotation = self.rotation + angleDiff;
		tween(self, {
			rotation: targetRotation
		}, {
			duration: duration,
			easing: tween.easeInOut,
			onFinish: callback
		});
	};
	// Function to move toward knight
	self.moveTowardKnight = function () {
		var dx = knight.x - self.x;
		var dy = knight.y - self.y;
		var distance = Math.sqrt(dx * dx + dy * dy);
		// If already within the desired distance, stop moving
		if (distance <= 500) {
			// Even if not moving, still face the knight
			var angle = Math.atan2(dy, dx);
			// Update rotation to face the knight
			self.updateRotation(angle, 500);
			return;
		}
		// Calculate target position that's 500 units away from knight
		var ratio = (distance - 500) / distance;
		var targetX = self.x + dx * ratio;
		var targetY = self.y + dy * ratio;
		// Calculate rotation angle
		var angle = Math.atan2(dy, dx);
		// First rotate smoothly toward the target, then move
		self.updateRotation(angle, 400, function () {
			// Then move toward the target
			tween(self, {
				x: targetX,
				y: targetY
			}, {
				duration: distance * 2,
				// Speed based on distance
				easing: tween.easeInOut,
				onUpdate: function onUpdate() {
					// Update rotation to continuously face the knight during movement
					var currentDx = knight.x - self.x;
					var currentDy = knight.y - self.y;
					var currentDistance = Math.sqrt(currentDx * currentDx + currentDy * currentDy);
					// Only update rotation if not very close to the target
					if (currentDistance > 10) {
						var currentAngle = Math.atan2(currentDy, currentDx);
						// Calculate target rotation with a smaller adjustment for smoothness using the utility function
						var newRotation = self.rotation + calculateAngleDiff(currentAngle, self.rotation) * 0.1;
						// Create a separate quick tween for the rotation
						tween(self, {
							rotation: newRotation
						}, {
							duration: 100,
							// Very short duration for responsive updates
							easing: tween.easeInOut
						});
					}
				},
				onFinish: function onFinish() {
					// Check if knight has moved and we need to follow again
					if (self.distanceToKnight() > 500) {
						self.moveTowardKnight();
					}
				}
			});
		});
	};
});
var Knight = Container.expand(function () {
	var self = Container.call(this);
	// Add boundingBox for collision detection
	self.boundingBox = LK.getAsset('boundingBox', {
		anchorX: 0.5,
		anchorY: 0.5,
		width: 80,
		height: 150,
		y: -50
	});
	self.addChild(self.boundingBox);
	self.boundingBox.alpha = isDebug ? 0.5 : 0; // Set to false if you don't want it visible
	var directionMapping = {
		'down-left': 'dir1',
		'left': 'dir2',
		'up-left': 'dir3',
		'up': 'dir4',
		'up-right': 'dir5',
		'right': 'dir6',
		'down-right': 'dir7',
		'down': 'dir8'
	};
	// Pre-create a list of assets for each direction
	var knightAssets = {};
	var shadowAssets = {}; // Shadow assets for the knight
	var knightIdleAssets = {}; // Idle assets for the knight
	var shadowIdleAssets = {}; // Shadow idle assets for the knight
	var color = 0xFFFFFF; // Original blue / 0xff4d4d; // Red / 0x9aff9a; // Green
	// Initialize run animation assets
	for (var dir in directionMapping) {
		knightAssets[dir] = [];
		shadowAssets[dir] = []; // Initialize shadow assets array for each direction
		for (var i = 1; i <= 8; i++) {
			var frameNumber = i.toString().padStart(3, '0');
			// Create knight sprite
			knightAssets[dir].push(LK.getAsset('knight-run-' + directionMapping[dir] + '-' + frameNumber, {
				anchorX: 0.5,
				anchorY: 0.5,
				tint: color
			}));
			// Create shadow sprite using the same assets but with modifications
			var shadowSprite = LK.getAsset('knight-run-' + directionMapping[dir] + '-' + frameNumber, {
				anchorX: 0.5,
				anchorY: 0.5
			});
			// Apply shadow properties
			shadowSprite.alpha = 0.5;
			shadowSprite.tint = 0x000000;
			shadowSprite.rotation = Math.PI / 12; // Rotate by 15 degrees (π/12 radians)
			shadowSprite.scale.y = 0.5; // Flatten the shadow vertically
			shadowAssets[dir].push(shadowSprite);
		}
		// Initialize idle animation assets (one frame per direction)
		knightIdleAssets[dir] = LK.getAsset('knight-idle-' + directionMapping[dir] + '-001', {
			anchorX: 0.5,
			anchorY: 0.5,
			tint: color
		});
		// Create shadow for idle animation
		var shadowIdleSprite = LK.getAsset('knight-idle-' + directionMapping[dir] + '-001', {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// Apply shadow properties
		shadowIdleSprite.alpha = 0.5;
		shadowIdleSprite.tint = 0x000000;
		shadowIdleSprite.rotation = Math.PI / 12;
		shadowIdleSprite.scale.y = 0.5;
		shadowIdleAssets[dir] = shadowIdleSprite;
	}
	var currentFrame = 0;
	var animationSpeed = 0.2; // Controls how fast the animation plays
	var frameCounter = 0;
	var knightGraphics = knightIdleAssets['down']; // Initialize with the 'down' direction idle asset
	var shadowGraphics = shadowIdleAssets['down']; // Initialize shadow with the 'down' direction idle asset
	// Add shadow first (so it appears behind the knight)
	self.addChild(shadowGraphics);
	// Then add the knight
	self.addChild(knightGraphics);
	knightGraphics.anchor.set(0.5, 0.5);
	knightGraphics.visible = true;
	shadowGraphics.visible = true;
	// Position the shadow slightly offset from the knight
	var shadowOffsetX = -5;
	var shadowOffsetY = 20;
	shadowGraphics.x = shadowOffsetX;
	shadowGraphics.y = shadowOffsetY;
	self.lastDirection = 'down'; // Initialize lastDirection to track previous direction
	self.isMoving = false; // Track if the knight is currently moving
	self.speed = 9;
	self.switchAsset = function (direction) {
		if (!knightGraphics) {
			return;
		}
		// Detach current assets
		// Hide current assets
		knightGraphics.visible = false;
		shadowGraphics.visible = false;
		// Switch to new assets based on direction and movement state
		if (self.isMoving) {
			// Use running animation
			knightGraphics = knightAssets[direction][currentFrame];
			shadowGraphics = shadowAssets[direction][currentFrame];
		} else {
			// Use idle animation
			knightGraphics = knightIdleAssets[direction];
			shadowGraphics = shadowIdleAssets[direction];
		}
		self.addChild(shadowGraphics);
		self.addChild(knightGraphics);
		// Show new assets
		knightGraphics.visible = true;
		shadowGraphics.visible = true;
		// Position the shadow slightly offset from the knight
		shadowGraphics.x = shadowOffsetX;
		shadowGraphics.y = shadowOffsetY;
		// Update last direction
		self.lastDirection = direction;
	};
	self.updateAnimation = function () {
		if (self.isMoving) {
			// Only update animation if moving
			frameCounter += animationSpeed;
			if (frameCounter >= 1) {
				frameCounter = 0;
				currentFrame = (currentFrame + 1) % 8; // Cycle through 8 frames
				if (self.lastDirection) {
					self.switchAsset(self.lastDirection);
				}
			}
		} else if (self.lastDirection) {
			// Make sure we're showing the idle animation when not moving
			self.switchAsset(self.lastDirection);
		}
	};
	self.moveToDirection = function (direction) {
		if (self.lastDirection !== direction) {
			self.switchAsset(direction);
			self.lastDirection = direction;
		}
		switch (direction) {
			case 'up':
				self.y -= self.speed;
				break;
			case 'down':
				self.y += self.speed;
				break;
			case 'left':
				self.x -= self.speed;
				break;
			case 'right':
				self.x += self.speed;
				break;
			case 'up-left':
				self.x -= self.speed / Math.sqrt(2);
				self.y -= self.speed / Math.sqrt(2);
				break;
			case 'up-right':
				self.x += self.speed / Math.sqrt(2);
				self.y -= self.speed / Math.sqrt(2);
				break;
			case 'down-left':
				self.x -= self.speed / Math.sqrt(2);
				self.y += self.speed / Math.sqrt(2);
				break;
			case 'down-right':
				self.x += self.speed / Math.sqrt(2);
				self.y += self.speed / Math.sqrt(2);
				break;
		}
	};
});
var Target = Container.expand(function () {
	var self = Container.call(this);
	self.x = 0;
	self.y = 0;
});

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

/**** 
* Game Code
****/ 
// Utility function to calculate the angle difference
function calculateAngleDiff(targetAngle, currentAngle) {
	var angleDiff = targetAngle - currentAngle;
	// Normalize angle difference to [-PI, PI]
	while (angleDiff > Math.PI) {
		angleDiff -= 2 * Math.PI;
	}
	while (angleDiff < -Math.PI) {
		angleDiff += 2 * Math.PI;
	}
	return angleDiff;
}
//<Write entity 'classes' with empty functions for important behavior here>
//<Write imports for supported plugins here>
//<Assets used in the game will automatically appear here>
//<Write game logic code here, including initializing arrays and variables>
var DroneManager = function DroneManager() {
	var self = this;
	self.drones = [];
	self.start = function () {
		// Spawn a drone in a random corner
		var currentTargetIndex = Math.floor(Math.random() * corners.length);
		var cornerPosition = corners[currentTargetIndex];
		// Create the drone
		var drone = new Drone();
		// Explicitly set position before adding to the scene
		drone.x = cornerPosition.x;
		drone.y = cornerPosition.y;
		// Store the current target index
		drone.currentTargetIndex = currentTargetIndex;
		// Set the initial target to the current corner position
		drone.target = {
			x: cornerPosition.x,
			y: cornerPosition.y
		};
		// Add to container and array
		middlegroundContainer.addChild(drone);
		self.drones.push(drone);
		// Call selectTarget after adding to scene to start movement
		// This ensures all properties are set before tweening begins
		LK.setTimeout(function () {
			//drone.selectTarget();
			drone.init();
		}, 100);
	};
};
/**** 
* Global variables
****/ 
var isDebug = true;
var gameStarted = false;
var droneManager;
var backgroundContainer;
var middlegroundContainer;
var foregroundContainer;
var knight;
var target;
var runSoundInterval;
var borderOffset = 380;
var corners = [{
	x: borderOffset,
	y: borderOffset
}, {
	x: 2048 - borderOffset,
	y: borderOffset
}, {
	x: borderOffset,
	y: 2732 - borderOffset
}, {
	x: 2048 - borderOffset,
	y: 2732 - borderOffset
}];
function log() {
	if (isDebug) {
		console.log.apply(console, arguments);
	}
}
function initializeGame() {
	// Create containers
	backgroundContainer = new Container();
	middlegroundContainer = new Container();
	foregroundContainer = new Container();
	// Add containers to game
	game.addChild(backgroundContainer);
	game.addChild(middlegroundContainer);
	game.addChild(foregroundContainer);
	// Initialize background
	var background = LK.getAsset('background', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	background.x = 2048 / 2;
	background.y = 2732 / 2;
	backgroundContainer.addChild(background);
	// Initialize knight
	knight = new Knight();
	knight.x = 2048 / 2;
	knight.y = 2732 / 2;
	middlegroundContainer.addChild(knight);
	// Initialize target
	target = new Target();
	target.x = knight.x;
	target.y = knight.y;
	foregroundContainer.addChild(target);
	// Initialize sound
	runSoundInterval = LK.setInterval(playRunSound, 350);
	droneManager = new DroneManager();
	LK.setTimeout(function () {
		gameStarted = true;
		droneManager.start();
	}, 1000);
}
function playRunSound() {
	if (knight.isMoving) {
		LK.getSound('knight-run').play();
	}
}
game.down = function (x, y, obj) {
	var game_position = game.toLocal(obj.global);
	target.x = game_position.x;
	target.y = game_position.y;
};
game.update = function () {
	var dx = target.x - knight.x;
	var dy = target.y - knight.y;
	var distance = Math.sqrt(dx * dx + dy * dy);
	var distanceThreshold = 8; // Define a threshold to avoid small movements
	var directionThreshold = 5; // Define a threshold for direction changes to avoid shaking
	if (distance > distanceThreshold) {
		// Set knight to moving state if not already moving
		if (!knight.isMoving) {
			knight.isMoving = true;
			knight.switchAsset(knight.lastDirection || 'down'); // Update asset to running animation
		}
		// Determine the primary direction based on the larger component (dx or dy)
		if (Math.abs(dx) > Math.abs(dy) + directionThreshold) {
			// Horizontal movement dominates
			if (dx > 0) {
				if (dy > directionThreshold) {
					knight.moveToDirection('down-right');
				} else if (dy < -directionThreshold) {
					knight.moveToDirection('up-right');
				} else {
					knight.moveToDirection('right');
				}
			} else {
				if (dy > directionThreshold) {
					knight.moveToDirection('down-left');
				} else if (dy < -directionThreshold) {
					knight.moveToDirection('up-left');
				} else {
					knight.moveToDirection('left');
				}
			}
		} else if (Math.abs(dy) > Math.abs(dx) + directionThreshold) {
			// Vertical movement dominates
			if (dy > 0) {
				if (dx > directionThreshold) {
					knight.moveToDirection('down-right');
				} else if (dx < -directionThreshold) {
					knight.moveToDirection('down-left');
				} else {
					knight.moveToDirection('down');
				}
			} else {
				if (dx > directionThreshold) {
					knight.moveToDirection('up-right');
				} else if (dx < -directionThreshold) {
					knight.moveToDirection('up-left');
				} else {
					knight.moveToDirection('up');
				}
			}
		} else {
			// The difference between dx and dy is small, use diagonal movement
			if (dx > 0 && dy > 0) {
				knight.moveToDirection('down-right');
			} else if (dx > 0 && dy < 0) {
				knight.moveToDirection('up-right');
			} else if (dx < 0 && dy > 0) {
				knight.moveToDirection('down-left');
			} else if (dx < 0 && dy < 0) {
				knight.moveToDirection('up-left');
			}
		}
	} else {
		// Set knight to idle state if currently moving
		if (knight.isMoving) {
			knight.isMoving = false;
			knight.switchAsset(knight.lastDirection || 'down'); // Update asset to idle animation
		}
	}
	// Update knight animation
	knight.updateAnimation();
};
initializeGame();

===================================================================
--- original.js
+++ change.js
@@ -80,8 +80,9 @@
 	}
 	self.init = function () {
 		animateScanBar(); // Start the loop
 		loopScanLaserTint(); // Start the loop
+		self.selectTarget();
 	};
 	self.addChild(droneGraphics);
 	self.speed = 5;
 	self.state = 'scanning'; // Possible states: scanning, attacking