/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ // AlarmDevice class var AlarmDevice = Container.expand(function () { var self = Container.call(this); var alarmGraphics = self.attachAsset('alarmdevice', { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { // Red flashing effect will be triggered in the game update loop after 3 seconds of beam use }; }); // But stop if the beam's top edge is at or above the UFO's bottom edge // Beam class var Beam = Container.expand(function () { var self = Container.call(this); var beamGraphics = self.attachAsset('beam', { anchorX: 0.5, anchorY: 1.0 }); beamGraphics.rotation = -Math.PI / 2; self.update = function () { // But stop if the beam's top edge is at or above the UFO's bottom edge if (self.y - self.height / 2 > ufo.y + ufo.height / 2) { self.y -= 5; } }; }); // Cow class var Cow = Container.expand(function () { var self = Container.call(this); var cowGraphics = self.attachAsset('cow', { anchorX: 0.5, anchorY: 0.5 }); self.isAbducted = false; // Add a new property to check if the cow is being abducted self.update = function () { if (!self.isAbducted) { // If the cow is not being abducted, it can move freely if (this.x < guards[0].x) { this.x = guards[0].x; } if (this.x > guards[1].x) { this.x = guards[1].x; } } else { // If the cow is being abducted, it should move towards the UFO var dx = ufo.x - this.x; var dy = ufo.y - this.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 5 && this.y - this.height / 2 > ufo.y + ufo.height / 2) { LK.getSound('cowmooing').play(); // Play cow mooing sound when the cow is being abducted // If the cow is not yet at the UFO and the cow's top edge is below the UFO's bottom edge, it should continue moving towards it this.x += dx / distance * 5; this.y += dy / distance * 5; } else { // If the cow has reached the UFO or its top edge is at or above the UFO's bottom edge, it should disappear this.destroy(); cows.splice(cows.indexOf(this), 1); } } }; }); // Ground class var Ground = Container.expand(function () { var self = Container.call(this); var groundGraphics = self.attachAsset('ground', { anchorX: 0.5, anchorY: 1.0 }); }); // Moon class var Moon = Container.expand(function () { var self = Container.call(this); var moonGraphics = self.attachAsset('moon', { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { // Moon shining animation logic // this.alpha = 0.5 + Math.sin(LK.ticks / 30) / 2; // Create a shining effect by changing the alpha value }; }); // SecurityGuard class var SecurityGuard = Container.expand(function () { var self = Container.call(this); var guardGraphics = self.attachAsset('guard', { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { if (self.visible) { if (!self.lastShotTime || Date.now() - self.lastShotTime > 1000) { // Add a cooldown of 1 second between shots self.lastShotTime = Date.now(); // Create a red laser beam shooting towards the UFO var laser = new Container(); var laserGraphics = laser.attachAsset('redlaser', { anchorX: 0.5, anchorY: 0.0 }); laser.x = self.x; laser.y = self.y; laser.rotation = Math.atan2(ufo.y - self.y, ufo.x - self.x); game.addChildAt(laser, game.getChildIndex(self)); // Move the laser towards the UFO laser.update = function () { laser.x += Math.cos(laser.rotation) * 10; laser.y += Math.sin(laser.rotation) * 10; // Ensure the laser beams maintain ten times the distance between them if (game.ticks % 10 === 0) { laser.x += Math.cos(laser.rotation) * 10; laser.y += Math.sin(laser.rotation) * 10; } // Destroy the laser if it goes off screen if (laser.x < 0 || laser.x > 2048 || laser.y < 0 || laser.y > 2732) { laser.destroy(); } if (laser.intersects(ufo)) { // Reduce UFO health by 10% ufoHealthBar.scaleX -= 0.1; if (ufoHealthBar.scaleX <= 0) { // If health is depleted, replace the UFO with an explosion asset if (!ufo.exploded) { var explosion = LK.getAsset('explosion', { anchorX: 0.5, anchorY: 0.5 }); explosion.x = ufo.x; explosion.y = ufo.y; game.addChild(explosion); ufo.exploded = true; LK.setTimeout(function () { explosion.destroy(); ufo.destroy(); guards.forEach(function (guard) { guard.visible = false; // Stop guards from firing }); LK.showGameOver(); // Trigger game over }, 1000); // Display explosion for 1 second } } laser.destroy(); // Destroy the laser after hitting the UFO } }; } } }; }); // StarrySky class var StarrySky = Container.expand(function () { var self = Container.call(this); var starrySkyGraphics = self.attachAsset('starrySky', { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { // Starry sky animation logic this.alpha = 0.5 + Math.sin(LK.ticks / 120) / 2; // Create a shining effect by changing the alpha value }; }); // // // UFO class var UFO = Container.expand(function () { var self = Container.call(this); var ufoGraphics = self.attachAsset('ufo', { anchorX: 0.5, anchorY: 0.5 }); self.beam = null; // Add a beam property to the UFO self.update = function () { // UFO movement logic will be handled in the game move event if (self.beam) { // If the beam exists, make it flash by changing its alpha value self.beam.alpha = 0.5 + Math.sin(LK.ticks / 10) / 2; // If the beam's top is inside the UFO, make it disappear if (self.beam.y <= self.y + self.height / 2) { self.beam.destroy(); self.beam = null; } } }; }); // Wormhole class var Wormhole = Container.expand(function () { var self = Container.call(this); var wormholeGraphics = self.attachAsset('wormhole', { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { // Rotate the wormhole continuously self.rotation += 0.05; // Adjust the rotation speed as needed }; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x000000 //Init game with black background }); /**** * Game Code ****/ // Initialize variables var ufoHealthBar = new Container(); var healthBarGraphics = ufoHealthBar.attachAsset('beam', { anchorX: 0.5, anchorY: 0.5, width: 200, height: 20, color: 0x00ff00 // Green color }); ufoHealthBar.x = 1024; // Center horizontally ufoHealthBar.y = 20; // Position at the top of the screen ufoHealthBar.visible = false; // Initially hidden game.addChild(ufoHealthBar); var starrySky = game.addChild(new StarrySky()); starrySky.x = 1024; // Center horizontally starrySky.y = 1366; // Center vertically // Initialize variables var ground = game.addChild(new Ground()); var moon = game.addChild(new Moon()); moon.x = 2048 - moon.width / 2 - 200; // Position moon at the upper right corner and move it left by 200 units moon.y = moon.height / 2 + 200; // Move the moon down by 200 units var wormhole = game.addChild(new Wormhole()); var alarmdevice = game.addChild(new AlarmDevice()); alarmdevice.x = 565; // Set x position of alarmdevice alarmdevice.y = 850; // Set y position of alarmdevice wormhole.x = moon.x; // Center wormhole on the moon wormhole.y = moon.y; // Align vertically with the moon wormhole.visible = false; // Initially hide the wormhole ground.x = 1024; // Center horizontally ground.y = 2732; // Bottom of the screen var ufo = game.addChild(new UFO()); ufo.x = 1024; // Center horizontally ufo.y = 500; // Upper half of the screen var cows = []; var guards = []; var sucking = false; var suckStartTime = 0; var beam = null; // Define the beam variable var laserStartTime = null; // Track when the laser beam starts var laserActive = false; // Track if the laser is currently active // Create cows for (var i = 0; i < 10; i++) { var cow = new Cow(); do { cow.x = Math.random() * 2048; cow.y = 2000 + Math.random() * 500; // Lower half of the screen } while (cows.some(function (existingCow) { return Math.abs(existingCow.x - cow.x) < 50 && Math.abs(existingCow.y - cow.y) < 50; })); cows.push(cow); game.addChild(cow); } // Sort cows based on their y-coordinate to ensure correct display order cows.sort(function (a, b) { return a.y - b.y; }); // Add cows to the game in sorted order cows.forEach(function (cow) { game.addChild(cow); }); // Create security guards but do not add them to the game yet for (var i = 0; i < 2; i++) { var guard = new SecurityGuard(); guard.x = i * 2048 + (i == 0 ? 200 : -200); // Position guards at each side of the screen but 200 units closer to the center guard.y = 2600; // Bottom of the screen guards.push(guard); } // Handle UFO movement game.move = function (x, y, obj) { ufo.x = x; ufo.y = Math.min(y, 1366); // Restrict to upper half }; // Handle mouse down event game.down = function (x, y, obj) { suckStartTime = Date.now(); // Track the time when the player starts pressing down // Check if the player clicked on a cow for (var i = 0; i < cows.length; i++) { if (Math.abs(cows[i].x - x) < 50 && Math.abs(cows[i].y - y) < 50) { cows[i].isAbducted = true; // Set the isAbducted property of the clicked cow to true beam = new Beam(); beam.x = cows[i].x; beam.y = cows[i].y; beam.height = Math.abs(cows[i].y - ufo.y); // Adjust the beam's height to match the distance between the UFO and the cow game.addChildAt(beam, game.getChildIndex(cows[0])); // Add the beam behind the cows in the display list break; } } }; // Handle mouse up event game.up = function (x, y, obj) { if (beam) { beam.destroy(); beam = null; for (var i = 0; i < cows.length; i++) { // Set the isAbducted property of all cows to false cows[i].isAbducted = false; } suckStartTime = 0; // Reset the suckStartTime when the player releases the click } }; // Game update loop game.update = function () { if (beam && !laserActive) { laserStartTime = Date.now(); laserActive = true; } else if (!beam && laserActive) { laserStartTime = null; laserActive = false; } if (laserActive && Date.now() - laserStartTime >= 3000) { // Add red flashing animation to the alarmdevice alarmdevice.update = function () { alarmdevice.children[0].tint = 0xff0000 * (0.5 + Math.sin(LK.ticks / 10) / 2); }; LK.getSound('alarm').play(); // Play alarm sound after 3 seconds of continuous laser use ufoHealthBar.visible = true; // Show the health bar LK.getSound('alarm').play(); laserStartTime = null; // Reset to prevent repeated alarms laserActive = false; // Add guards to the game after the alarm sound has played guards.forEach(function (guard) { game.addChild(guard); }); } if (sucking) { var currentTime = Date.now(); if (currentTime - suckStartTime > 2000) { // Move guards horizontally towards the UFO guards.forEach(function (guard) { if (guard.x < ufo.x) { guard.x += 2; // Move right } else if (guard.x > ufo.x) { guard.x -= 2; // Move left } // Shoot thin red lines towards the UFO var line = new Container(); var lineGraphics = line.attachAsset('redlaser', { anchorX: 0.5, anchorY: 0.5 }); line.x = guard.x; line.y = guard.y; line.rotation = Math.atan2(ufo.y - guard.y, ufo.x - guard.x); game.addChild(line); line.update = function () { line.x += Math.cos(line.rotation) * 10; line.y += Math.sin(line.rotation) * 10; if (line.x < 0 || line.x > 2048 || line.y < 0 || line.y > 2732) { line.destroy(); } if (line.intersects(ufo)) { line.destroy(); } }; }); } if (currentTime - suckStartTime > 5000) { // Move guards horizontally towards the UFO guards.forEach(function (guard) { if (guard.x < ufo.x) { guard.x += 2; // Move right } else if (guard.x > ufo.x) { guard.x -= 2; // Move left } // Shoot thin red lines towards the UFO var line = new Container(); var lineGraphics = line.attachAsset('beam', { anchorX: 0.5, anchorY: 0.5, color: 0xff0000, // Red color width: 2, // Thin line height: Math.abs(guard.y - ufo.y) }); line.x = guard.x; line.y = guard.y; game.addChild(line); }); } var currentTime = Date.now(); if (currentTime - suckStartTime > 6000) { // Game over logic LK.effects.flashScreen(0xff0000, 1000); LK.showGameOver(); if (beam) { beam.destroy(); beam = null; } } else { // Suck cows for (var i = cows.length - 1; i >= 0; i--) { if (Math.abs(cows[i].x - ufo.x) < 50 && Math.abs(cows[i].y - ufo.y) < 50) { cows[i].destroy(); cows.splice(i, 1); } } } } // Check if all cows are collected if (cows.length === 0) { wormhole.visible = true; // Display the wormhole } // Check if UFO intersects with the wormhole if (ufo.intersects(wormhole)) { // Ensure the intersection is with the wormhole and not the pause button if (wormhole.visible) { // Increase UFO's life to 100% ufoHealthBar.scaleX = 1.0; // Hide guards when UFO intersects with the wormhole guards.forEach(function (guard) { guard.visible = false; }); // Reduce UFO size continuously by 0.05 ufo.scaleX = Math.max(0, ufo.scaleX - 0.05); ufo.scaleY = Math.max(0, ufo.scaleY - 0.05); // Stop the alarm sound when UFO intersects with the wormhole LK.getSound('alarm').stop(); // Display 'Level Completed' with a flash animated effect var levelCompletedText = new Text2('Level Completed', { size: 200, fill: 0xFFFFFF }); levelCompletedText.anchor.set(0.5, 0.5); levelCompletedText.x = 1024; // Center horizontally levelCompletedText.y = 1366; // Center vertically game.addChild(levelCompletedText); // Use tween to create a flash effect tween(levelCompletedText, { alpha: 0 }, { duration: 500, easing: tween.easeInOut, onFinish: function onFinish() { tween(levelCompletedText, { alpha: 1 }, { duration: 500, easing: tween.easeInOut, onFinish: function onFinish() { levelCompletedText.visible = false; // Hide the text after 1 second // Reload the game for the next level LK.showYouWin(10); // This will reset the game state and start a new level with a final score of 10 } }); } }); } } };

Aliens love cows by JZU

Images

Sounds