/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var AimRect = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('aimRect', { anchorX: 0.5, anchorY: 0.5 }); graphics.alpha = 0.8; self.targetEnemy = null; self.update = function () { if (self.targetEnemy && !self.targetEnemy.shouldRemove) { // Follow the target enemy self.x = self.targetEnemy.x; self.y = self.targetEnemy.y; // Pulse effect using tween if (!self.tweening) { self.tweening = true; var _pulseTween = function pulseTween() { tween(graphics, { alpha: 0.3 }, { duration: 500, easing: tween.easeInOut, onFinish: function onFinish() { tween(graphics, { alpha: 0.8 }, { duration: 500, easing: tween.easeInOut, onFinish: _pulseTween }); } }); }; _pulseTween(); } } else { self.shouldRemove = true; } }; return self; }); var Enemy = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('enemy', { anchorX: 0.5, anchorY: 0.5 }); self.z = 1000; self.originalX = 0; self.originalY = 0; self.speed = 1.5; self.lastShot = 0; self.shootInterval = 120; // 2 seconds at 60fps self.update = function () { self.z -= self.speed * gameSpeed; // Calculate 3D perspective effect var scale = 400 / self.z; var perspectiveX = self.originalX * scale; var perspectiveY = self.originalY * scale; self.x = 1024 + perspectiveX; self.y = 1366 + perspectiveY; self.scaleX = scale; self.scaleY = scale; // Shoot at player self.lastShot++; if (self.lastShot >= self.shootInterval && self.z < 800) { self.shoot(); self.lastShot = 0; } // Remove if too close if (self.z <= 10) { self.shouldRemove = true; } }; self.shoot = function () { // Calculate direction toward player with inaccuracy var deltaX = player.x - self.x; var deltaY = player.y - self.y; // Add random inaccuracy to aim (±200 pixel offset) var aimErrorX = (Math.random() - 0.5) * 400; var aimErrorY = (Math.random() - 0.5) * 400; deltaX += aimErrorX; deltaY += aimErrorY; var laser = new Laser(self.x, self.y, self.z, deltaX, deltaY); lasers.push(laser); game.addChild(laser); LK.getSound('laser_fire').play(); }; return self; }); var Laser = Container.expand(function (startX, startY, startZ, directionX, directionY) { var self = Container.call(this); var graphics = self.attachAsset('laser', { anchorX: 0.5, anchorY: 0.5 }); self.z = startZ || 1000; self.originalX = (startX - 1024) * (self.z / 400); self.originalY = (startY - 1366) * (self.z / 400); self.speed = 4; // Store direction for homing toward player if (directionX !== undefined && directionY !== undefined) { var distance = Math.sqrt(directionX * directionX + directionY * directionY); self.directionX = directionX / distance; self.directionY = directionY / distance; } else { self.directionX = 0; self.directionY = 0; } self.update = function () { self.z -= self.speed * gameSpeed; // Move toward player if direction is set if (self.directionX !== 0 || self.directionY !== 0) { self.originalX += self.directionX * 8 * gameSpeed; self.originalY += self.directionY * 8 * gameSpeed; } // Calculate 3D perspective effect var scale = 400 / self.z; var perspectiveX = self.originalX * scale; var perspectiveY = self.originalY * scale; self.x = 1024 + perspectiveX; self.y = 1366 + perspectiveY; self.scaleX = scale; self.scaleY = scale; // Set rotation to match movement direction if (self.directionX !== 0 || self.directionY !== 0) { self.rotation = Math.atan2(self.directionY, self.directionX) + Math.PI / 2; } // Remove if too close if (self.z <= 10) { self.shouldRemove = true; } }; return self; }); var Obstacle = Container.expand(function (type) { var self = Container.call(this); var assetType = type || 'asteroid'; var graphics = self.attachAsset(assetType, { anchorX: 0.5, anchorY: 0.5 }); self.z = 1000; // Distance from player (far away) self.originalX = 0; self.originalY = 0; self.speed = 2; self.type = assetType; self.update = function () { self.z -= self.speed * gameSpeed; // Calculate 3D perspective effect var scale = 400 / self.z; var perspectiveX = self.originalX * scale; var perspectiveY = self.originalY * scale; self.x = 1024 + perspectiveX; self.y = 1366 + perspectiveY; self.scaleX = scale; self.scaleY = scale; // Remove if too close if (self.z <= 10) { self.shouldRemove = true; } }; return self; }); var Player = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('player', { anchorX: 0.5, anchorY: 0.5 }); self.speed = 300; self.health = 3; self.shields = false; return self; }); var PowerUp = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('powerup', { anchorX: 0.5, anchorY: 0.5 }); self.z = 1000; self.originalX = 0; self.originalY = 0; self.speed = 1; self.rotationSpeed = 0.1; self.update = function () { self.z -= self.speed * gameSpeed; self.rotation += self.rotationSpeed; // Calculate 3D perspective effect var scale = 400 / self.z; var perspectiveX = self.originalX * scale; var perspectiveY = self.originalY * scale; self.x = 1024 + perspectiveX; self.y = 1366 + perspectiveY; self.scaleX = scale; self.scaleY = scale; // Remove if too close if (self.z <= 10) { self.shouldRemove = true; } }; return self; }); var Star = Container.expand(function () { var self = Container.call(this); var graphics = self.attachAsset('star', { anchorX: 0.5, anchorY: 0.5 }); self.z = Math.random() * 2000 + 100; self.originalX = (Math.random() - 0.5) * 2000; self.originalY = (Math.random() - 0.5) * 2000; self.speed = 0.5; self.update = function () { self.z -= self.speed * gameSpeed; // Calculate 3D perspective effect var scale = 200 / self.z; var perspectiveX = self.originalX * scale; var perspectiveY = self.originalY * scale; self.x = 1024 + perspectiveX; self.y = 1366 + perspectiveY; self.scaleX = scale; self.scaleY = scale; // Reset if too close if (self.z <= 10) { self.z = 2000; self.originalX = (Math.random() - 0.5) * 2000; self.originalY = (Math.random() - 0.5) * 2000; } }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000000 }); /**** * Game Code ****/ var player; var obstacles = []; var enemies = []; var lasers = []; var stars = []; var powerups = []; var aimRects = []; var gameSpeed = 1; var spawnTimer = 0; var starSpawnTimer = 0; var speedIncreaseTimer = 0; var distance = 0; // Create player player = game.addChild(new Player()); player.x = 1024; player.y = 1366 + 300; // Create initial stars for (var i = 0; i < 1000; i++) { var star = new Star(); stars.push(star); game.addChild(star); } // UI Elements var scoreTxt = new Text2('Score: 0', { size: 60, fill: 0xFFFFFF }); scoreTxt.anchor.set(0, 0); LK.gui.topLeft.addChild(scoreTxt); scoreTxt.x = 120; // Avoid top-left platform menu var healthTxt = new Text2('Health: 3', { size: 60, fill: 0xFF0000 }); healthTxt.anchor.set(1, 0); LK.gui.topRight.addChild(healthTxt); var speedTxt = new Text2('Speed: 1.0x', { size: 50, fill: 0x00FF00 }); speedTxt.anchor.set(0.5, 0); LK.gui.top.addChild(speedTxt); // Touch controls var isDragging = false; var dragStartX = 0; var dragStartY = 0; game.down = function (x, y, obj) { isDragging = true; dragStartX = x; dragStartY = y; }; game.move = function (x, y, obj) { if (isDragging) { var deltaX = x - dragStartX; var deltaY = y - dragStartY; // Move player based on drag player.x = Math.max(200, Math.min(1848, player.x + deltaX * 0.5)); player.y = Math.max(200, Math.min(2532, player.y + deltaY * 0.5)); dragStartX = x; dragStartY = y; } }; game.up = function (x, y, obj) { isDragging = false; }; // Main game loop game.update = function () { distance += gameSpeed; LK.setScore(Math.floor(distance / 10)); scoreTxt.setText('Score: ' + LK.getScore()); healthTxt.setText('Health: ' + player.health); speedTxt.setText('Speed: ' + gameSpeed.toFixed(1) + 'x'); // Increase game speed over time speedIncreaseTimer++; if (speedIncreaseTimer >= 600) { // Every 10 seconds gameSpeed += 0.1; speedIncreaseTimer = 0; } // Spawn obstacles spawnTimer++; if (spawnTimer >= Math.max(30, 120 - LK.getScore() * 2)) { spawnTimer = 0; var spawnType = Math.random(); if (spawnType < 0.4) { // Spawn asteroid var obstacle = new Obstacle('asteroid'); obstacle.originalX = (Math.random() - 0.5) * 800; obstacle.originalY = (Math.random() - 0.5) * 800; obstacles.push(obstacle); game.addChild(obstacle); // 50% chance for asteroids to spin if (Math.random() < 0.5) { var spinDuration = 8000 + Math.random() * 4000; // Random duration between 8-12 seconds for slow spinning var spinDirection = Math.random() < 0.5 ? 1 : -1; // Random spin direction tween(obstacle, { rotation: obstacle.rotation + Math.PI * 2 * spinDirection }, { duration: spinDuration, easing: tween.linear, onFinish: function onFinish() { // Continue spinning by starting a new tween var _continueSpin = function continueSpin() { if (obstacle && !obstacle.shouldRemove) { tween(obstacle, { rotation: obstacle.rotation + Math.PI * 2 * spinDirection }, { duration: spinDuration, easing: tween.linear, onFinish: _continueSpin }); } }; _continueSpin(); } }); } } else if (spawnType < 0.7) { // Spawn enemy var enemy = new Enemy(); enemy.originalX = (Math.random() - 0.5) * 600; enemy.originalY = (Math.random() - 0.5) * 600; enemies.push(enemy); game.addChild(enemy); } else { // Spawn powerup var powerup = new PowerUp(); powerup.originalX = (Math.random() - 0.5) * 400; powerup.originalY = (Math.random() - 0.5) * 400; powerups.push(powerup); game.addChild(powerup); } } // Check collisions with obstacles for (var i = obstacles.length - 1; i >= 0; i--) { var obstacle = obstacles[i]; if (obstacle.shouldRemove) { obstacle.destroy(); obstacles.splice(i, 1); continue; } if (obstacle.z < 100 && player.intersects(obstacle)) { // Collision with obstacle if (!player.shields) { player.health--; LK.effects.flashScreen(0xff0000, 500); LK.getSound('explosion').play(); } obstacle.destroy(); obstacles.splice(i, 1); if (player.health <= 0) { LK.showGameOver(); return; } } } // Check collisions with enemies for (var i = enemies.length - 1; i >= 0; i--) { var enemy = enemies[i]; if (enemy.shouldRemove) { enemy.destroy(); enemies.splice(i, 1); continue; } if (enemy.z < 100 && player.intersects(enemy)) { // Collision with enemy if (!player.shields) { player.health--; LK.effects.flashScreen(0xff0000, 500); LK.getSound('explosion').play(); } enemy.destroy(); enemies.splice(i, 1); if (player.health <= 0) { LK.showGameOver(); return; } } } // Check collisions with lasers for (var i = lasers.length - 1; i >= 0; i--) { var laser = lasers[i]; if (laser.shouldRemove) { laser.destroy(); lasers.splice(i, 1); continue; } if (laser.z < 100 && player.intersects(laser)) { // Hit by laser if (!player.shields) { player.health--; LK.effects.flashScreen(0xff0000, 500); LK.getSound('explosion').play(); } laser.destroy(); lasers.splice(i, 1); if (player.health <= 0) { LK.showGameOver(); return; } } } // Auto-aiming system - create aim rectangles for enemies for (var i = 0; i < enemies.length; i++) { var enemy = enemies[i]; if (enemy.z < 600 && enemy.z > 100) { // Only target enemies in range var hasAim = false; // Check if this enemy already has an aim rectangle for (var j = 0; j < aimRects.length; j++) { if (aimRects[j].targetEnemy === enemy) { hasAim = true; break; } } // Create new aim rectangle if needed if (!hasAim) { var aimRect = new AimRect(); aimRect.targetEnemy = enemy; aimRect.x = enemy.x; aimRect.y = enemy.y; aimRects.push(aimRect); game.addChild(aimRect); } } } // Clean up aim rectangles for (var i = aimRects.length - 1; i >= 0; i--) { var aimRect = aimRects[i]; if (aimRect.shouldRemove) { aimRect.destroy(); aimRects.splice(i, 1); } } // Update player shield visual effect if (player.shields) { // Create pulsing effect for shields var pulseAlpha = 0.7 + 0.3 * Math.sin(LK.ticks * 0.2); player.alpha = pulseAlpha; } else { player.alpha = 1.0; } // Check collisions with powerups for (var i = powerups.length - 1; i >= 0; i--) { var powerup = powerups[i]; if (powerup.shouldRemove) { powerup.destroy(); powerups.splice(i, 1); continue; } if (powerup.z < 150 && player.intersects(powerup)) { // Collected powerup player.health = Math.min(5, player.health + 1); player.shields = true; LK.getSound('powerup_collect').play(); LK.effects.flashObject(player, 0x00ff00, 1000); // Remove shields after 3 seconds LK.setTimeout(function () { player.shields = false; player.alpha = 1.0; // Reset alpha when shields are removed }, 3000); powerup.destroy(); powerups.splice(i, 1); } } };