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

/**** 
* Classes
****/ 
var Asteroid = Container.expand(function () {
	var self = Container.call(this);
	var asteroidGraphics = self.attachAsset('asteroid', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.targetPlanet = null;
	self.update = function () {
		self.x += self.velocityX;
		self.y += self.velocityY;
		asteroidGraphics.rotation += 0.05;
	};
	return self;
});
var Bullet = Container.expand(function () {
	var self = Container.call(this);
	var bulletGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.velocityX = 0;
	self.velocityY = 0;
	self.update = function () {
		self.x += self.velocityX;
		self.y += self.velocityY;
	};
	return self;
});
var Laser = Container.expand(function () {
	var self = Container.call(this);
	var laserGraphics = self.attachAsset('bullet', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	laserGraphics.tint = 0x00ff00; // Green laser color
	laserGraphics.scaleX = 0.5; // Make laser thinner
	laserGraphics.scaleY = 2; // Make laser longer
	self.velocityX = 0;
	self.velocityY = 0;
	self.update = function () {
		self.x += self.velocityX;
		self.y += self.velocityY;
	};
	return self;
});
var OrbitLine = Container.expand(function (radius) {
	var self = Container.call(this);
	self.orbitRadius = radius;
	// Create a single connected circular line using small line segments
	var numSegments = Math.max(16, Math.floor(radius * 0.1)); // Fewer segments for better performance
	var twoPi = Math.PI * 2; // Cache the calculation
	for (var i = 0; i < numSegments; i++) {
		var angle1 = i / numSegments * twoPi;
		var angle2 = (i + 1) / numSegments * twoPi;
		var x1 = Math.cos(angle1) * radius;
		var y1 = Math.sin(angle1) * radius;
		var x2 = Math.cos(angle2) * radius;
		var y2 = Math.sin(angle2) * radius;
		// Calculate segment length and angle
		var segmentLength = Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
		var segmentAngle = Math.atan2(y2 - y1, x2 - x1);
		// Create line segment
		var lineSegment = self.attachAsset('orbitLine', {
			anchorX: 0,
			anchorY: 0.5,
			alpha: 0.4,
			scaleX: segmentLength / 2,
			// Scale to match segment length
			scaleY: 1
		});
		// Position and rotate the segment
		lineSegment.x = x1;
		lineSegment.y = y1;
		lineSegment.rotation = segmentAngle;
	}
	return self;
});
var Planet = Container.expand(function (size, color, orbitRadius, orbitSpeed) {
	var self = Container.call(this);
	self.orbitRadius = orbitRadius;
	self.orbitSpeed = orbitSpeed;
	self.angle = Math.random() * Math.PI * 2;
	var assetName = 'mercury';
	if (color === 0x4169e1) assetName = 'earth';else if (color === 0xff4500) assetName = 'mars';else if (color === 0xffc649) assetName = 'venus';else if (color === 0xd2691e) assetName = 'jupiter';else if (color === 0xffd700) assetName = 'saturn';else if (color === 0x40e0d0) assetName = 'uranus';else if (color === 0x4169e1 && size === 85) assetName = 'neptune';
	var planetGraphics = self.attachAsset(assetName, {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.update = function () {
		self.angle += self.orbitSpeed;
		var cosAngle = Math.cos(self.angle);
		var sinAngle = Math.sin(self.angle);
		self.x = sunX + cosAngle * self.orbitRadius;
		self.y = sunY + sinAngle * self.orbitRadius;
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000011
});

/**** 
* Game Code
****/ 
// Show instructions before game starts
var instructionText = new Text2(" How to play:\n\nGoal:\n- protect the Earth from asteroid collisions\n- you will be given a spaceship that shoots lasers\n- you will use these lasers to destroy asteroids\n- if the Earth gets hit with 4 asteroids, you lose\n- If you have multiple spaceships, they will all fire where you choose\n\nPoints:\n- every asteroid you destroy will earn you five points\n- every 50 points, you will recieve a new spaceship you can put in the solar system\n- if you reach 350 points, that interval will increase to every 100 points\n\nAsteroids:\n- asteroids are your enimies\n- they can be destroyed with one laser hit\n- they will come from random directions, so be aware of all sides of the screen\n\nControls:\n- select a spaceship to move it, select it again to start firing\n- click any point on the sreen to fire lasers in that direction\n- if you have multiple spaceships, they will all fire where you choose\n\n\nGot it!", {
	size: 60,
	fill: 0xFFFFFF,
	wordWrap: true,
	wordWrapWidth: 1600
});
instructionText.anchor.set(0.5, 0.5);
instructionText.x = 2048 / 2;
instructionText.y = 2732 / 2;
game.addChild(instructionText);
// Add click handler to dismiss instructions
var instructionsVisible = true;
game.down = function (x, y, obj) {
	if (instructionsVisible) {
		// Hide instructions and start the game
		instructionText.destroy();
		instructionsVisible = false;
		// Initialize all game assets now
		initializeGameAssets();
		// Re-define the game.down handler for normal gameplay
		return;
	}
	// If a defensive ship is selected and placed, shoot laser at clicked position
	if (selectedShipIndex >= 0 && defensiveShips[selectedShipIndex].placed && defensiveShips[selectedShipIndex].selected) {
		// Make all placed ships fire lasers at the selected point
		for (var k = 0; k < defensiveShips.length; k++) {
			var ship = defensiveShips[k];
			// Only fire from ships that are placed
			if (!ship.placed) {
				continue;
			}
			var laser = new Laser();
			laser.x = ship.x;
			laser.y = ship.y;
			// Calculate direction from this ship to clicked position
			var dx = x - laser.x;
			var dy = y - laser.y;
			var distance = Math.sqrt(dx * dx + dy * dy);
			// Calculate rotation angle to face the target point
			var targetRotation = Math.atan2(dy, dx) + Math.PI / 2; // Add PI/2 since ship top should face target
			// Rotate the ship to face the target
			tween(ship, {
				rotation: targetRotation
			}, {
				duration: 200,
				easing: tween.easeOut
			});
			var speed = 8;
			if (distance > 0) {
				laser.velocityX = dx / distance * speed;
				laser.velocityY = dy / distance * speed;
			}
			lasers.push(laser);
			game.addChild(laser);
		}
	}
};
// Define variables that will be initialized after instructions
var sunX, sunY, sun, planets, mercury, venus, earth, mars, jupiter, saturn, uranus, neptune;
var orbitLines, bullets, lasers, asteroids, asteroidSpawnTimer, lives;
var scoreTxt, livesTxt, defensiveShips, selectedShipIndex, isDragging;
var totalShips, availableShips, lastScoreCheck;
// Function to initialize game assets
function initializeGameAssets() {
	sunX = 2048 / 2;
	sunY = 2732 / 2;
	sun = game.addChild(LK.getAsset('sun', {
		anchorX: 0.5,
		anchorY: 0.5,
		x: sunX,
		y: sunY
	}));
	planets = [];
	mercury = new Planet(50, 0x8c7853, 150, 0.015);
	venus = new Planet(70, 0xffc649, 200, 0.012);
	earth = new Planet(80, 0x4169e1, 300, 0.008);
	mars = new Planet(60, 0xff4500, 450, 0.005);
	jupiter = new Planet(120, 0xd2691e, 600, 0.003);
	saturn = new Planet(100, 0xffd700, 750, 0.002);
	uranus = new Planet(90, 0x40e0d0, 900, 0.0015);
	neptune = new Planet(85, 0x4169e1, 1050, 0.001);
	planets.push(mercury);
	planets.push(venus);
	planets.push(earth);
	planets.push(mars);
	planets.push(jupiter);
	planets.push(saturn);
	planets.push(uranus);
	planets.push(neptune);
	// Create orbit lines for each planet
	orbitLines = [];
	var planetOrbits = [150, 200, 300, 450, 600, 750, 900, 1050]; // Mercury to Neptune orbit radii
	for (var i = 0; i < planetOrbits.length; i++) {
		var orbitLine = new OrbitLine(planetOrbits[i]);
		orbitLine.x = sunX;
		orbitLine.y = sunY;
		orbitLines.push(orbitLine);
		game.addChild(orbitLine);
	}
	for (var i = 0; i < planets.length; i++) {
		game.addChild(planets[i]);
	}
	bullets = [];
	lasers = [];
	asteroids = [];
	asteroidSpawnTimer = 0;
	lives = 4;
	scoreTxt = new Text2('Score: 0', {
		size: 60,
		fill: 0xFFFFFF
	});
	scoreTxt.anchor.set(0.5, 0);
	scoreTxt.x = 0;
	LK.gui.top.addChild(scoreTxt);
	livesTxt = new Text2('Lives: 4', {
		size: 60,
		fill: 0xFFFFFF
	});
	livesTxt.anchor.set(0.5, 0);
	livesTxt.x = 0;
	livesTxt.y = 70;
	LK.gui.top.addChild(livesTxt);
	defensiveShips = [];
	selectedShipIndex = -1;
	isDragging = false;
	totalShips = 4; // Maximum number of ships
	availableShips = 1; // Start with 1 ship available
	lastScoreCheck = 0; // Track score for adding new ships
	// Create 4 defensive ships but only show the available ones
	for (var i = 0; i < totalShips; i++) {
		var defensiveShip = LK.getAsset('defensiveShip', {
			anchorX: 0.5,
			anchorY: 0.5,
			x: -80,
			// Position all ships in the same spot in top right corner
			y: 80
		});
		defensiveShip.shipIndex = i;
		defensiveShip.placed = false;
		defensiveShip.selected = false;
		// Only show ships that are available
		defensiveShip.visible = i < availableShips;
		defensiveShips.push(defensiveShip);
		LK.gui.topRight.addChild(defensiveShip);
	}
	// Add down handler to each defensive ship
	for (var i = 0; i < defensiveShips.length; i++) {
		defensiveShips[i].down = function (x, y, obj) {
			var ship = this;
			var shipIndex = ship.shipIndex;
			// Only allow interaction with visible/available ships
			if (!ship.visible) {
				return;
			}
			if (ship.placed) {
				// Ship has been placed, allow selection for shooting
				// Deselect all other ships
				for (var j = 0; j < defensiveShips.length; j++) {
					if (j !== shipIndex && defensiveShips[j].selected) {
						defensiveShips[j].selected = false;
						tween(defensiveShips[j], {
							alpha: 1.0
						}, {
							duration: 200
						});
					}
				}
				if (!ship.selected) {
					ship.selected = true;
					selectedShipIndex = shipIndex;
					tween(ship, {
						alpha: 0.7
					}, {
						duration: 200
					});
				}
				// Removed else block to prevent manual dis-selection of placed ships
				return;
			}
			// Ship not placed yet - immediately start dragging
			// Deselect all other ships
			for (var j = 0; j < defensiveShips.length; j++) {
				if (j !== shipIndex && defensiveShips[j].selected) {
					defensiveShips[j].selected = false;
					tween(defensiveShips[j], {
						alpha: 1.0
					}, {
						duration: 200
					});
				}
			}
			// Start dragging immediately
			isDragging = true;
			selectedShipIndex = shipIndex;
			ship.selected = true;
			// Store original scale before moving
			var originalScaleX = ship.scaleX;
			var originalScaleY = ship.scaleY;
			// No need to shift ships since they're all in the same position
			// Move defensive ship to game area for dragging
			var gamePos = game.toLocal(LK.gui.topRight.toGlobal({
				x: ship.x,
				y: ship.y
			}));
			LK.gui.topRight.removeChild(ship);
			game.addChild(ship);
			ship.x = gamePos.x;
			ship.y = gamePos.y;
			// Restore original scale after moving to game area
			ship.scaleX = originalScaleX;
			ship.scaleY = originalScaleY;
		};
	}
}
game.move = function (x, y, obj) {
	// Move ship to cursor position during dragging
	if (isDragging && selectedShipIndex >= 0) {
		var ship = defensiveShips[selectedShipIndex];
		ship.x = x;
		ship.y = y;
	}
};
game.up = function (x, y, obj) {
	if (isDragging && selectedShipIndex >= 0) {
		isDragging = false;
		// Defensive ship is now placed in the solar system
		var placedShip = defensiveShips[selectedShipIndex];
		// Check if ship is off-screen and needs to be moved back to available ships area
		var shipHalfWidth = 40; // Half width of defensive ship (80/2)
		var shipHalfHeight = 55; // Half height of defensive ship (110/2)
		var isOffScreen = placedShip.x - shipHalfWidth < 0 || placedShip.x + shipHalfWidth > 2048 || placedShip.y - shipHalfHeight < 0 || placedShip.y + shipHalfHeight > 2732;
		if (isOffScreen) {
			// Move ship back to available ships area
			game.removeChild(placedShip);
			LK.gui.topRight.addChild(placedShip);
			// Place ship back at the single spawn position in top right corner
			placedShip.x = -80;
			placedShip.y = 80;
			placedShip.placed = false;
		} else {
			placedShip.placed = true;
		}
		placedShip.selected = false;
		selectedShipIndex = -1;
		tween(placedShip, {
			alpha: 1.0
		}, {
			duration: 200
		});
	}
};
game.update = function () {
	// Don't update game while instructions are visible
	if (instructionsVisible) {
		return;
	}
	// Check if we should add a new ship (every 50 points up to 350, then every 100 points)
	var currentScore = LK.getScore();
	var newAvailableShips;
	if (currentScore <= 350) {
		// Every 50 points up to 350
		newAvailableShips = Math.min(totalShips, 1 + Math.floor(currentScore / 50));
	} else {
		// After 350: base ships from first 350 points (1 + 7 = 8) plus additional ships every 100 points
		var baseShips = 1 + Math.floor(350 / 50); // Ships earned up to 350 points
		var additionalShips = Math.floor((currentScore - 350) / 100); // Additional ships after 350
		newAvailableShips = Math.min(totalShips, baseShips + additionalShips);
	}
	if (newAvailableShips > availableShips) {
		availableShips = newAvailableShips;
		// Make the newly available ship visible
		for (var k = 0; k < availableShips; k++) {
			if (!defensiveShips[k].visible) {
				defensiveShips[k].visible = true;
			}
		}
	}
	for (var i = 0; i < planets.length; i++) {
		planets[i].update();
	}
	asteroidSpawnTimer++;
	// Calculate spawn frequency based on score - significant increase after score 50
	var baseSpawnDelay = 120;
	var minSpawnDelay = 8; // Reduced minimum for more intense gameplay
	var cachedScore = LK.getScore(); // Cache score to avoid multiple calls
	var currentSpawnDelay;
	if (cachedScore < 50) {
		// Normal progression before score 50
		var scoreSpeedUp = Math.floor(cachedScore / 100);
		currentSpawnDelay = Math.max(60, baseSpawnDelay - scoreSpeedUp * 10);
	} else {
		// Linear increase after score 50
		var excessScore = cachedScore - 50;
		var linearSpeedUp = Math.floor(excessScore / 10); // Linear reduction every 10 points
		currentSpawnDelay = Math.max(minSpawnDelay, 60 - linearSpeedUp * 2);
	}
	if (asteroidSpawnTimer > currentSpawnDelay) {
		var asteroid = new Asteroid();
		var spawnAngle = Math.random() * Math.PI * 2;
		var spawnDistance = 1500;
		var cosSpawn = Math.cos(spawnAngle);
		var sinSpawn = Math.sin(spawnAngle);
		asteroid.x = sunX + cosSpawn * spawnDistance;
		asteroid.y = sunY + sinSpawn * spawnDistance;
		// Set initial velocity toward Earth's current position
		var dx = earth.x - asteroid.x;
		var dy = earth.y - asteroid.y;
		var distanceSquared = dx * dx + dy * dy;
		if (distanceSquared > 0) {
			var distance = Math.sqrt(distanceSquared);
			var speed = 2 / distance; // Cache division
			asteroid.velocityX = dx * speed;
			asteroid.velocityY = dy * speed;
		}
		asteroids.push(asteroid);
		game.addChild(asteroid);
		asteroidSpawnTimer = 0;
	}
	for (var i = bullets.length - 1; i >= 0; i--) {
		var bullet = bullets[i];
		if (bullet.x < -50 || bullet.x > 2098 || bullet.y < -50 || bullet.y > 2782) {
			bullet.destroy();
			bullets.splice(i, 1);
			continue;
		}
		for (var j = asteroids.length - 1; j >= 0; j--) {
			if (bullet.intersects(asteroids[j])) {
				LK.setScore(LK.getScore() + 5);
				scoreTxt.setText('Score: ' + LK.getScore());
				bullet.destroy();
				bullets.splice(i, 1);
				asteroids[j].destroy();
				asteroids.splice(j, 1);
				break;
			}
		}
	}
	// Update lasers
	for (var i = lasers.length - 1; i >= 0; i--) {
		var laser = lasers[i];
		laser.update();
		if (laser.x < -50 || laser.x > 2098 || laser.y < -50 || laser.y > 2782) {
			laser.destroy();
			lasers.splice(i, 1);
			continue;
		}
		// Check laser collision with asteroids
		var laserHit = false;
		for (var j = asteroids.length - 1; j >= 0 && !laserHit; j--) {
			if (laser.intersects(asteroids[j])) {
				LK.setScore(LK.getScore() + 5);
				scoreTxt.setText('Score: ' + LK.getScore());
				laser.destroy();
				lasers.splice(i, 1);
				asteroids[j].destroy();
				asteroids.splice(j, 1);
				laserHit = true;
				break;
			}
		}
	}
	for (var i = asteroids.length - 1; i >= 0; i--) {
		var asteroid = asteroids[i];
		var asteroidHit = false;
		// Cache asteroid position relative to sun
		var dx = asteroid.x - sunX;
		var dy = asteroid.y - sunY;
		var sunDistanceSquared = dx * dx + dy * dy;
		// Check sun collision first (most common)
		if (sunDistanceSquared < 14400) {
			// 120 * 120 = 14400
			asteroid.destroy();
			asteroids.splice(i, 1);
			continue;
		}
		// Only check planet collisions if not destroyed by sun
		for (var j = 0; j < planets.length && !asteroidHit; j++) {
			if (asteroid.intersects(planets[j])) {
				if (planets[j] === earth) {
					LK.effects.flashScreen(0x440000, 1000);
					lives--;
					livesTxt.setText('Lives: ' + lives);
					if (lives <= 0) {
						LK.showGameOver();
						return;
					}
				}
				asteroid.destroy();
				asteroids.splice(i, 1);
				asteroidHit = true;
				break;
			}
		}
	}
};

===================================================================
--- original.js
+++ change.js
@@ -117,9 +117,9 @@
 * Game Code
 ****/ 
 // Show instructions before game starts
 var instructionText = new Text2(" How to play:\n\nGoal:\n- protect the Earth from asteroid collisions\n- you will be given a spaceship that shoots lasers\n- you will use these lasers to destroy asteroids\n- if the Earth gets hit with 4 asteroids, you lose\n- If you have multiple spaceships, they will all fire where you choose\n\nPoints:\n- every asteroid you destroy will earn you five points\n- every 50 points, you will recieve a new spaceship you can put in the solar system\n- if you reach 350 points, that interval will increase to every 100 points\n\nAsteroids:\n- asteroids are your enimies\n- they can be destroyed with one laser hit\n- they will come from random directions, so be aware of all sides of the screen\n\nControls:\n- select a spaceship to move it, select it again to start firing\n- click any point on the sreen to fire lasers in that direction\n- if you have multiple spaceships, they will all fire where you choose\n\n\nGot it!", {
-	size: 50,
+	size: 60,
 	fill: 0xFFFFFF,
 	wordWrap: true,
 	wordWrapWidth: 1600
 });