/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var AmmoPowerup = Container.expand(function () { var self = Container.call(this); var powerupGraphics = self.attachAsset('ammoPowerup', { anchorX: 0.5, anchorY: 0.5 }); self.rotationSpeed = 0.05; self.update = function () { self.rotation += self.rotationSpeed; }; return self; }); var Cover = Container.expand(function () { var self = Container.call(this); var coverGraphics = self.attachAsset('cover', { anchorX: 0.5, anchorY: 0.5 }); self.health = 50; self.takeDamage = function (damage) { self.health -= damage; LK.effects.flashObject(self, 0xffffff, 200); if (self.health <= 0) { return true; // Cover is destroyed } return false; }; return self; }); var Enemy = Container.expand(function () { var self = Container.call(this); var enemyGraphics = self.attachAsset('enemy', { anchorX: 0.5, anchorY: 0.5 }); self.health = 30; self.speed = 1; self.shootCooldown = 0; self.targetX = 0; self.targetY = 0; self.lastShotTime = 0; self.update = function () { // Move towards player var dx = self.targetX - self.x; var dy = self.targetY - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 5) { self.x += dx / distance * self.speed; self.y += dy / distance * self.speed; } // Shoot at player occasionally if (LK.ticks - self.lastShotTime > 120 && Math.random() < 0.02) { self.shoot(); } }; self.shoot = function () { self.lastShotTime = LK.ticks; var bullet = new EnemyBullet(); bullet.x = self.x; bullet.y = self.y; var dx = self.targetX - self.x; var dy = self.targetY - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 0) { bullet.velocityX = dx / distance * 3; bullet.velocityY = dy / distance * 3; } enemyBullets.push(bullet); game.addChild(bullet); }; self.takeDamage = function (damage) { self.health -= damage; LK.effects.flashObject(self, 0xffffff, 200); if (self.health <= 0) { return true; // Enemy is dead } return false; }; return self; }); var EnemyBullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('enemyBullet', { 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 PlayerBullet = Container.expand(function () { var self = Container.call(this); var bulletGraphics = self.attachAsset('playerBullet', { anchorX: 0.5, anchorY: 0.5 }); self.velocityX = 0; self.velocityY = 0; self.speed = 8; self.update = function () { self.x += self.velocityX; self.y += self.velocityY; }; return self; }); var Soldier = Container.expand(function () { var self = Container.call(this); var soldierGraphics = self.attachAsset('soldier', { anchorX: 0.5, anchorY: 0.5 }); self.health = 100; self.maxHealth = 100; self.lastHit = 0; self.takeDamage = function (damage) { if (LK.ticks - self.lastHit > 30) { // Invincibility frames self.health -= damage; self.lastHit = LK.ticks; LK.effects.flashObject(self, 0xff0000, 500); return true; } return false; }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x2c3e50 }); /**** * Game Code ****/ var player = game.addChild(new Soldier()); player.x = 1024; player.y = 1800; var enemies = []; var playerBullets = []; var enemyBullets = []; var covers = []; var powerups = []; var ammo = 30; var maxAmmo = 30; var reloadTime = 0; var wave = 1; var enemiesInWave = 5; var enemiesSpawned = 0; var waveComplete = false; // Create cover objects for (var i = 0; i < 4; i++) { var cover = new Cover(); cover.x = 400 + i * 400; cover.y = 1200 + i % 2 * 300; covers.push(cover); game.addChild(cover); } // UI Elements var ammoText = new Text2('Ammo: ' + ammo, { size: 60, fill: 0xFFFFFF }); ammoText.anchor.set(1, 0); LK.gui.topRight.addChild(ammoText); var waveText = new Text2('Wave: ' + wave, { size: 60, fill: 0xFFFFFF }); waveText.anchor.set(0, 0); LK.gui.topLeft.addChild(waveText); var healthText = new Text2('Health: ' + player.health, { size: 60, fill: 0xFFFFFF }); healthText.anchor.set(0.5, 0); LK.gui.top.addChild(healthText); var scoreText = new Text2('Score: 0', { size: 60, fill: 0xFFFFFF }); scoreText.anchor.set(0.5, 1); LK.gui.bottom.addChild(scoreText); var dragNode = null; var lastTapTime = 0; function handleMove(x, y, obj) { if (dragNode) { dragNode.x = Math.max(40, Math.min(2008, x)); dragNode.y = Math.max(40, Math.min(2692, y)); } } function spawnEnemy() { if (enemiesSpawned >= enemiesInWave) return; var enemy = new Enemy(); var side = Math.floor(Math.random() * 4); switch (side) { case 0: // Top enemy.x = Math.random() * 2048; enemy.y = -50; break; case 1: // Right enemy.x = 2098; enemy.y = Math.random() * 2732; break; case 2: // Bottom enemy.x = Math.random() * 2048; enemy.y = 2782; break; case 3: // Left enemy.x = -50; enemy.y = Math.random() * 2732; break; } enemy.targetX = player.x; enemy.targetY = player.y; enemy.speed = 0.5 + wave * 0.2; enemies.push(enemy); game.addChild(enemy); enemiesSpawned++; } function shoot(targetX, targetY) { if (ammo <= 0 || reloadTime > 0) return; var bullet = new PlayerBullet(); bullet.x = player.x; bullet.y = player.y; var dx = targetX - player.x; var dy = targetY - player.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > 0) { bullet.velocityX = dx / distance * bullet.speed; bullet.velocityY = dy / distance * bullet.speed; } playerBullets.push(bullet); game.addChild(bullet); ammo--; ammoText.setText('Ammo: ' + ammo); LK.getSound('shoot').play(); if (ammo <= 0) { reloadTime = 120; // 2 seconds at 60fps } } function spawnPowerup() { if (Math.random() < 0.1 && powerups.length < 2) { var powerup = new AmmoPowerup(); powerup.x = 200 + Math.random() * 1648; powerup.y = 200 + Math.random() * 1400; powerups.push(powerup); game.addChild(powerup); } } game.move = handleMove; game.down = function (x, y, obj) { var currentTime = LK.ticks; if (currentTime - lastTapTime < 10) { // Drag mode dragNode = player; handleMove(x, y, obj); } else { // Shoot mode shoot(x, y); } lastTapTime = currentTime; }; game.up = function (x, y, obj) { dragNode = null; }; var enemySpawnTimer = 0; game.update = function () { // Reload handling if (reloadTime > 0) { reloadTime--; if (reloadTime === 0) { ammo = maxAmmo; ammoText.setText('Ammo: ' + ammo); LK.getSound('reload').play(); } } // Update enemy targets for (var i = 0; i < enemies.length; i++) { enemies[i].targetX = player.x; enemies[i].targetY = player.y; } // Spawn enemies enemySpawnTimer++; if (enemySpawnTimer > 180 && enemiesSpawned < enemiesInWave) { // 3 seconds spawnEnemy(); enemySpawnTimer = 0; } // Spawn powerups occasionally if (LK.ticks % 600 === 0) { spawnPowerup(); } // Check player bullets for (var i = playerBullets.length - 1; i >= 0; i--) { var bullet = playerBullets[i]; // Remove bullets that are off screen if (bullet.x < -50 || bullet.x > 2098 || bullet.y < -50 || bullet.y > 2782) { bullet.destroy(); playerBullets.splice(i, 1); continue; } // Check collision with enemies for (var j = enemies.length - 1; j >= 0; j--) { var enemy = enemies[j]; if (bullet.intersects(enemy)) { if (enemy.takeDamage(25)) { LK.setScore(LK.getScore() + 100); scoreText.setText('Score: ' + LK.getScore()); enemy.destroy(); enemies.splice(j, 1); LK.getSound('enemyHit').play(); } bullet.destroy(); playerBullets.splice(i, 1); break; } } // Check collision with covers for (var k = covers.length - 1; k >= 0; k--) { var cover = covers[k]; if (bullet.intersects(cover)) { if (cover.takeDamage(10)) { cover.destroy(); covers.splice(k, 1); } bullet.destroy(); playerBullets.splice(i, 1); break; } } } // Check enemy bullets for (var i = enemyBullets.length - 1; i >= 0; i--) { var bullet = enemyBullets[i]; // Remove bullets that are off screen if (bullet.x < -50 || bullet.x > 2098 || bullet.y < -50 || bullet.y > 2782) { bullet.destroy(); enemyBullets.splice(i, 1); continue; } // Check collision with player if (bullet.intersects(player)) { if (player.takeDamage(15)) { healthText.setText('Health: ' + player.health); if (player.health <= 0) { LK.showGameOver(); return; } } bullet.destroy(); enemyBullets.splice(i, 1); continue; } // Check collision with covers for (var k = covers.length - 1; k >= 0; k--) { var cover = covers[k]; if (bullet.intersects(cover)) { if (cover.takeDamage(5)) { cover.destroy(); covers.splice(k, 1); } bullet.destroy(); enemyBullets.splice(i, 1); break; } } } // Check powerup collection for (var i = powerups.length - 1; i >= 0; i--) { var powerup = powerups[i]; if (powerup.intersects(player)) { ammo = Math.min(maxAmmo, ammo + 15); ammoText.setText('Ammo: ' + ammo); powerup.destroy(); powerups.splice(i, 1); } } // Check wave completion if (enemiesSpawned >= enemiesInWave && enemies.length === 0) { wave++; waveText.setText('Wave: ' + wave); enemiesInWave = 5 + wave * 2; enemiesSpawned = 0; // Restore some health between waves player.health = Math.min(player.maxHealth, player.health + 20); healthText.setText('Health: ' + player.health); // Win condition after wave 10 if (wave > 10) { LK.showYouWin(); return; } } };