/**** * Classes ****/ // Bullet class var Bullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('bullet', { anchorX: 0.5, anchorY: 0.5 }); self.speed = -5; self.update = function () { self.y += self.speed; }; }); // DOTMissile class var DOTMissile = Container.expand(function () { var self = Container.call(this); var missileGraphics = self.attachAsset('DOTmissile', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 8; self.update = function () { self.x += self.vx; self.y += self.vy; // Calculate the angle of movement var angle = Math.atan2(self.vy, self.vx); // Rotate the missile to point in the direction of movement missileGraphics.rotation = angle; }; }); // Explosion class var Explosion = Container.expand(function () { var self = Container.call(this); var explosionGraphics = self.attachAsset('explosion', { anchorX: 0.5, anchorY: 0.5 }); self.lifetime = 30; // Duration of the explosion effect self.update = function () { self.lifetime--; if (self.lifetime <= 0) { self.destroy(); } }; }); // LifePod class var LifePod = Container.expand(function () { var self = Container.call(this); var podGraphics = self.attachAsset('cargo', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 2; // Falling speed of the life pod self.update = function () { self.y += self.speed; // Check if the life pod goes off screen if (self.y > 2732) { self.destroy(); } }; }); // Missile class var Missile = Container.expand(function () { var self = Container.call(this); var missileGraphics = self.attachAsset('missile', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 8; self.update = function () { self.x += self.vx; self.y += self.vy; // Calculate the angle of movement var angle = Math.atan2(self.vy, self.vx); // Rotate the missile to point in the direction of movement missileGraphics.rotation = angle; }; }); // Mothership class var Mothership = Container.expand(function () { var self = Container.call(this); var mothershipGraphics = self.attachAsset('spacePirateMotherShip', { anchorX: 0.5, anchorY: 0.5 }); self.health = 10; self.update = function () { // Mothership logic can be added here }; }); // PowerBoost class var PowerBoost = Container.expand(function () { var self = Container.call(this); var boostGraphics = self.attachAsset('yellowStar', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 2; // Falling speed of the power boost self.update = function () { self.y += self.speed; // Check if the power boost goes off screen if (self.y > 2732) { self.destroy(); } }; }); // Red Star class var RedStar = Container.expand(function () { var self = Container.call(this); var starGraphics = self.attachAsset('redStar', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 1; // Set a consistent falling speed for stars self.update = function () { self.y += self.speed; if (self.y > 2732) { self.y = -self.height; // Reset position to top when it goes off screen } }; }); // Space DOT class var SpaceDOT = Container.expand(function () { var self = Container.call(this); var dotGraphics = self.attachAsset('spaceDOT', { anchorX: 0.0, anchorY: 0.5 }); self.speed = 5; self.health = 3; self.update = function () { // Space DOTs fire missiles every 4 seconds if (LK.ticks % 240 == 0) { var newMissile = new DOTMissile(); newMissile.x = self.x; newMissile.y = self.y; var dx = truck.x - self.x; var dy = truck.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); newMissile.vx = dx / distance * newMissile.speed; newMissile.vy = dy / distance * newMissile.speed; missiles.push(newMissile); game.addChild(newMissile); } // Calculate angle towards the truck var angle = Math.atan2(truck.y - self.y, truck.x - self.x); // Rotate the SpaceDOT to point towards the truck dotGraphics.rotation = angle; // Calculate direction towards the truck var dx = truck.x - self.x; var dy = truck.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 0.1) { // Prevent division by zero // Calculate movement towards the truck self.x += dx / distance * self.speed; self.y += dy / distance * self.speed; } if (self.y > 2732) { self.y = -self.height; } }; }); // Space Pirate class var SpacePirate = Container.expand(function () { var self = Container.call(this); var pirateGraphics = self.attachAsset('spacePirate', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 3; self.update = function () { self.y += self.speed; if (self.y > 2732) { self.y = -self.height; } // Space pirates fire missiles if (LK.ticks % 240 == 0) { var newMissile = new Missile(); newMissile.x = self.x; newMissile.y = self.y; // Calculate direction towards the truck var dx = truck.x - self.x; var dy = truck.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); newMissile.vx = dx / distance * newMissile.speed; newMissile.vy = dy / distance * newMissile.speed; missiles.push(newMissile); game.addChild(newMissile); } }; }); // Star class var Star = Container.expand(function () { var self = Container.call(this); var starGraphics = self.attachAsset('blueStar', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 1; // Set a consistent falling speed for stars self.update = function () { self.y += self.speed; if (self.y > 2732) { self.y = -self.height; // Reset position to top when it goes off screen } }; }); // // Truck class var Truck = Container.expand(function () { var self = Container.call(this); self.lives = 5; // Initialize truck with 5 lives var truckGraphics = self.attachAsset('truck', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 5; self.update = function () { // Truck movement logic // Touch-based controls for truck movement game.move = function (x, y, obj) { self.x = x; self.y = y; }; if (LK.ticks % 30 == 0) { var newBullet = new Bullet(); newBullet.x = self.x; newBullet.y = self.y; bullets.push(newBullet); game.addChild(newBullet); } }; self.move = function (x, y, obj) { self.x = x; self.y = y; }; }); // Yellow Star class var YellowStar = Container.expand(function () { var self = Container.call(this); var starGraphics = self.attachAsset('yellowStar', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 1; // Set a consistent falling speed for stars self.update = function () { self.y += self.speed; if (self.y > 2732) { self.y = -self.height; // Reset position to top when it goes off screen } }; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000000 //Init game with black background }); /**** * Game Code ****/ // Initialize stars var stars = []; for (var i = 0; i < 100; i++) { var star; var randomType = Math.random(); if (randomType < 0.33) { star = new Star(); } else if (randomType < 0.66) { star = new RedStar(); } else { star = new YellowStar(); } star.x = Math.random() * 2048; star.y = Math.random() * 2732; stars.push(star); game.addChild(star); } // Update stars for (var i = 0; i < stars.length; i++) { stars[i].update(); } // Initialize score to 0 points LK.setScore(0); // Initialize bullets var bullets = []; // Initialize missiles var missiles = []; // Initialize truck var truck = game.addChild(new Truck()); truck.x = 2048 / 2; truck.y = 2732 - 200; // Initialize space pirates var spacePirates = []; var pirateSpawnInterval = LK.setInterval(function () { var pirate = new SpacePirate(); pirate.x = Math.random() * 2048; pirate.y = Math.random() * -2732; // Ensure pirates spawn off-screen initially spacePirates.push(pirate); game.addChild(pirate); }, 5000); // Spawn a pirate every 5 seconds // Initialize space DOTs var spaceDOTs = []; var dotSpawnInterval = LK.setInterval(function () { var dot = new SpaceDOT(); dot.x = Math.random() * 2048; dot.y = Math.random() * -500; spaceDOTs.push(dot); game.addChild(dot); }, 10000); // Spawn a DOT every 10 seconds // Handle truck movement game.move = function (x, y, obj) { truck.x = x; truck.y = y; }; // Display current points at the top of the screen in white letters and numbers, in a retro font var scoreDisplay = new Text2('Score: 0', { size: 100, // Increased size for the score banner fill: "#ffffff", font: "'Press Start 2P', cursive" // Retro font }); scoreDisplay.anchor.set(0.5, 0); // Center the text horizontally LK.gui.top.addChild(scoreDisplay); // Display truck lives below the score banner var livesDisplay = new Text2('Lives: 3', { size: 80, fill: "#ffffff", font: "'Press Start 2P', cursive" }); livesDisplay.anchor.set(0.5, 0); livesDisplay.y = scoreDisplay.height; // Position below the score banner LK.gui.top.addChild(livesDisplay); // Update game logic if (LK.getScore() >= 500 && !mothershipSpawned) { var mothership = new Mothership(); mothership.x = 2048 / 2; mothership.y = -mothership.height; // Start off-screen game.addChild(mothership); mothershipSpawned = true; } game.update = function () { // Increase missile speed after reaching 300 points if (LK.getScore() >= 300) { for (var i = 0; i < missiles.length; i++) { missiles[i].speed = 12; // Increase speed } } // Check if score is 100 or more to increase difficulty if (LK.getScore() >= 100) { // Increase pirate fire rate for (var i = 0; i < spacePirates.length; i++) { if (LK.ticks % 60 == 0) { // Fire every second instead of every two seconds var newMissile = new Missile(); newMissile.x = spacePirates[i].x; newMissile.y = spacePirates[i].y; var dx = truck.x - spacePirates[i].x; var dy = truck.y - spacePirates[i].y; var distance = Math.sqrt(dx * dx + dy * dy); newMissile.vx = dx / distance * newMissile.speed; newMissile.vy = dy / distance * newMissile.speed; missiles.push(newMissile); game.addChild(newMissile); } } // Increase pirate spawn rate if (LK.getScore() >= 250) { if (LK.ticks % 150 == 0) { // Spawn a pirate every 2.5 seconds var pirate = new SpacePirate(); pirate.x = Math.random() * 2048; pirate.y = Math.random() * -2732; spacePirates.push(pirate); game.addChild(pirate); } } else { if (LK.ticks % 300 == 0) { // Spawn a pirate every 5 seconds var pirate = new SpacePirate(); pirate.x = Math.random() * 2048; pirate.y = Math.random() * -2732; spacePirates.push(pirate); game.addChild(pirate); } } } // Update lives display livesDisplay.setText('Lives: ' + truck.lives); // Update score display scoreDisplay.setText('Score: ' + LK.getScore()); // Update game logic // Update bullets for (var i = bullets.length - 1; i >= 0; i--) { bullets[i].update(); // Remove bullets that go off screen if (bullets[i].y < -50) { game.removeChild(bullets[i]); bullets.splice(i, 1); continue; } // Check collision with space pirates for (var j = spacePirates.length - 1; j >= 0; j--) { if (bullets[i].intersects(spacePirates[j])) { LK.getSound('Explosion').play(); game.removeChild(bullets[i]); var explosion = new Explosion(); explosion.x = spacePirates[j].x; explosion.y = spacePirates[j].y; game.addChild(explosion); game.removeChild(spacePirates[j]); // 10% chance to spawn a LifePod if (Math.random() < 0.1) { var lifePod = new LifePod(); lifePod.x = spacePirates[j].x; lifePod.y = spacePirates[j].y; game.addChild(lifePod); } bullets.splice(i, 1); spacePirates.splice(j, 1); LK.setScore(LK.getScore() + 5); // Add 5 points for destroying a space pirate scoreDisplay.setStyle({ fill: "#00ff00" }); // Change text color to green LK.setTimeout(function () { scoreDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white }, 200); break; } } // Check collision with spaceDOTs for (var j = spaceDOTs.length - 1; j >= 0; j--) { if (bullets[i] && bullets[i].intersects(spaceDOTs[j])) { game.removeChild(bullets[i]); bullets.splice(i, 1); spaceDOTs[j].health -= 1; if (spaceDOTs[j].health <= 0) { var explosion = new Explosion(); explosion.x = spaceDOTs[j].x; explosion.y = spaceDOTs[j].y; game.addChild(explosion); LK.getSound('Explosion2').play(); game.removeChild(spaceDOTs[j]); spaceDOTs.splice(j, 1); LK.setScore(LK.getScore() + 15); // Add 15 points for destroying a DOT // 100% chance to spawn a PowerBoost if (spaceDOTs[j]) { var powerBoost = new PowerBoost(); powerBoost.x = spaceDOTs[j].x; powerBoost.y = spaceDOTs[j].y; game.addChild(powerBoost); } scoreDisplay.setStyle({ fill: "#00ff00" }); // Change text color to green LK.setTimeout(function () { scoreDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white }, 200); } break; } } } for (var i = 0; i < spacePirates.length; i++) { spacePirates[i].update(); // If a space pirate is destroyed, spawn a new one if (spacePirates.length == 0) { var pirate = new SpacePirate(); pirate.x = Math.random() * 2048; pirate.y = Math.random() * -2732; spacePirates.push(pirate); game.addChild(pirate); } // Check collision with truck if (spacePirates[i].intersects(truck)) { game.removeChild(spacePirates[i]); spacePirates.splice(i, 1); truck.lives -= 1; // Decrease truck lives by 1 livesDisplay.setStyle({ fill: "#ff0000" }); // Change text color to red LK.setTimeout(function () { livesDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white LK.setTimeout(function () { livesDisplay.setStyle({ fill: "#ff0000" }); // Change text color to red again LK.setTimeout(function () { livesDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white }, 200); }, 200); }, 200); if (truck.lives <= 0) { LK.effects.flashScreen(0xff0000, 1000); LK.showGameOver(); } } } // Update space DOTs for (var i = 0; i < spaceDOTs.length; i++) { spaceDOTs[i].update(); // Check collision with truck if (spaceDOTs[i].intersects(truck)) { var explosion = new Explosion(); explosion.x = spaceDOTs[i].x; explosion.y = spaceDOTs[i].y; game.addChild(explosion); game.removeChild(spaceDOTs[i]); spaceDOTs.splice(i, 1); LK.getSound('Hit2').play(); // Play Hit2 sound when DOT collides with truck LK.setScore(LK.getScore() - 15); // Subtract 15 points for collision with the truck scoreDisplay.setStyle({ fill: "#ff0000" }); // Change text color to red LK.setTimeout(function () { scoreDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white }, 200); } } // Update life pods for (var i = game.children.length - 1; i >= 0; i--) { var child = game.children[i]; if (child instanceof LifePod) { child.update(); if (child.intersects(truck)) { game.removeChild(child); if (child instanceof LifePod) { truck.lives += 1; // Increase truck lives by 1 LK.getSound('Hit3').play(); // Play Hit3 sound when truck picks up extra life livesDisplay.setStyle({ fill: "#00ff00" }); // Change text color to green LK.setTimeout(function () { livesDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white }, 200); } else if (child instanceof PowerBoost) { // Fire 3 bullets: 1 straight, 2 at 30-degree angles var angles = [0, Math.PI / 6, -Math.PI / 6]; for (var _i = 0, _angles = angles; _i < _angles.length; _i++) { var angle = _angles[_i]; var newBullet = new Bullet(); newBullet.x = truck.x; newBullet.y = truck.y; newBullet.speed = -5; newBullet.update = function () { this.y += this.speed * Math.cos(angle); this.x += this.speed * Math.sin(angle); }; bullets.push(newBullet); game.addChild(newBullet); } } } } } for (var i = missiles.length - 1; i >= 0; i--) { missiles[i].update(); // Remove missiles that go off screen if (missiles[i].y > 2732 || missiles[i].x < -50 || missiles[i].x > 2098) { game.removeChild(missiles[i]); missiles.splice(i, 1); continue; } // Check collision with truck if (missiles[i].intersects(truck) && !truck.invincible) { game.removeChild(missiles[i]); missiles.splice(i, 1); if (missiles[i] instanceof DOTMissile) { LK.getSound('Hit2').play(); // Play Hit2 sound when DOTmissile hits truck LK.setScore(LK.getScore() - 5); // Subtract 5 points for DOTmissile collision } else { truck.lives -= 1; LK.getSound('Hit1').play(); // Play Hit1 sound when other missile hits truck } scoreDisplay.setStyle({ fill: "#ff0000" }); // Change text color to red LK.setTimeout(function () { scoreDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white }, 200); truck.invincible = true; // Make truck invincible LK.setTimeout(function () { truck.invincible = false; // Remove invincibility after 0.5 seconds }, 500); livesDisplay.setStyle({ fill: "#ff0000" }); // Change text color to red LK.setTimeout(function () { livesDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white LK.setTimeout(function () { livesDisplay.setStyle({ fill: "#ff0000" }); // Change text color to red again LK.setTimeout(function () { livesDisplay.setStyle({ fill: "#ffffff" }); // Change text color back to white }, 200); }, 200); }, 200); if (truck.lives <= 0) { LK.effects.flashScreen(0xff0000, 1000); LK.showGameOver(); } continue; // Ensure the missile is immediately removed } // Check collision with missile and truck if (missiles[i].intersects(truck)) { game.removeChild(missiles[i]); missiles.splice(i, 1); } } };