/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var Bullet = Container.expand(function (startX, startY, targetX, targetY, damage, faction) { var self = Container.call(this); self.x = startX; self.y = startY; self.damage = damage; self.faction = faction; self.speed = 8; var dx = targetX - startX; var dy = targetY - startY; var distance = Math.sqrt(dx * dx + dy * dy); self.velocityX = dx / distance * self.speed; self.velocityY = dy / distance * self.speed; self.maxDistance = distance; self.traveled = 0; var bulletGraphics = self.attachAsset('bullet', { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { self.x += self.velocityX; self.y += self.velocityY; self.traveled += self.speed; // Check if bullet reached target area or max distance if (self.traveled >= self.maxDistance) { self.explode(); } }; self.explode = function () { // Find units in explosion radius var explosionRadius = 30; var explosionPlayed = false; for (var i = 0; i < allUnits.length; i++) { var unit = allUnits[i]; if (unit.faction !== self.faction && unit.health > 0) { var dx = unit.x - self.x; var dy = unit.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < explosionRadius) { var destroyed = unit.takeDamage(self.damage); if (destroyed && !explosionPlayed) { // Play unit-specific destruction sound var soundName = unit.type + 'Destroy'; LK.getSound(soundName).play(); explosionPlayed = true; } } } } // Check cities var enemyCities = self.faction === 'red' ? blueCities : redCities; for (var i = 0; i < enemyCities.length; i++) { var city = enemyCities[i]; if (city.health > 0) { var dx = city.x - self.x; var dy = city.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < explosionRadius) { var destroyed = city.takeDamage(self.damage); if (destroyed && !explosionPlayed) { LK.getSound('cityDestroy').play(); explosionPlayed = true; } } } } // Remove bullet for (var i = 0; i < bullets.length; i++) { if (bullets[i] === self) { bullets.splice(i, 1); break; } } self.destroy(); }; return self; }); var City = Container.expand(function (faction) { var self = Container.call(this); self.faction = faction; self.health = 1000; self.maxHealth = 1000; self.lastProduction = 0; self.productionCooldown = 180; // 3 seconds at 60fps var cityGraphics = self.attachAsset('city', { anchorX: 0.5, anchorY: 0.5 }); // Color based on faction if (faction === 'red') { cityGraphics.tint = 0xff4444; } else { cityGraphics.tint = 0x4444ff; } // Health bar background var healthBarBg = self.attachAsset('healthBarBg', { anchorX: 0.5, anchorY: 0.5, y: -50 }); // Health bar var healthBar = self.attachAsset('healthBar', { anchorX: 0.5, anchorY: 0.5, y: -50 }); self.takeDamage = function (damage) { self.health -= damage; if (self.health <= 0) { self.health = 0; return true; // City destroyed } // Update health bar var healthPercent = self.health / self.maxHealth; healthBar.width = 80 * healthPercent; return false; }; self.produceUnit = function () { if (LK.ticks - self.lastProduction < self.productionCooldown) return; // Check if we've reached the maximum unit limit per faction var aliveUnits = 0; for (var i = 0; i < allUnits.length; i++) { if (allUnits[i].health > 0 && allUnits[i].faction === self.faction) { aliveUnits++; } } if (aliveUnits >= 10) return; // Don't produce more units if we have 10 or more per faction // Choose random unit type var unitTypes = ['infantry', 'tank', 'artillery']; var unitType = unitTypes[Math.floor(Math.random() * unitTypes.length)]; var unit = new Unit(unitType, self.faction); // Find valid position that doesn't overlap with other units var validPosition = false; var attempts = 0; var maxAttempts = 20; var unitRadius = 40; // Minimum distance between units while (!validPosition && attempts < maxAttempts) { var angle = Math.random() * Math.PI * 2; var distance = 100 + Math.random() * 100; unit.x = self.x + Math.cos(angle) * distance; unit.y = self.y + Math.sin(angle) * distance; // Keep within bounds unit.x = Math.max(50, Math.min(1998, unit.x)); unit.y = Math.max(50, Math.min(2682, unit.y)); // Check for collision with existing units validPosition = true; for (var i = 0; i < allUnits.length; i++) { var otherUnit = allUnits[i]; if (otherUnit.health > 0) { var dx = unit.x - otherUnit.x; var dy = unit.y - otherUnit.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < unitRadius) { validPosition = false; break; } } } attempts++; } // Only spawn if valid position found if (validPosition) { allUnits.push(unit); game.addChild(unit); self.lastProduction = LK.ticks; } }; self.update = function () { if (self.health <= 0) return; self.produceUnit(); }; return self; }); var Unit = Container.expand(function (type, faction) { var self = Container.call(this); self.type = type; self.faction = faction; self.target = null; self.lastShot = 0; self.health = 100; self.maxHealth = 100; self.moveSpeed = 2; self.range = 100; self.damage = 20; self.shootCooldown = 60; // Set unit stats based on type if (type === 'infantry') { self.moveSpeed = 2; self.health = 60; self.maxHealth = 60; self.damage = 15; self.range = 80; self.shootCooldown = 40; } else if (type === 'tank') { self.moveSpeed = 2.5; self.health = 120; self.maxHealth = 120; self.damage = 30; self.range = 100; self.shootCooldown = 60; } else if (type === 'artillery') { self.moveSpeed = 1; self.health = 80; self.maxHealth = 80; self.damage = 50; self.range = 180; self.shootCooldown = 90; } var assetName = type; if (faction === 'red') { assetName = 'red' + type.charAt(0).toUpperCase() + type.slice(1); } var unitGraphics = self.attachAsset(assetName, { anchorX: 0.5, anchorY: 0.5 }); // Color based on faction if (faction === 'red') { unitGraphics.tint = 0xff4444; } else { unitGraphics.tint = 0x4444ff; } // Health bar background var healthBarBg = self.attachAsset('healthBarBg', { anchorX: 0.5, anchorY: 0.5, y: -50 }); // Health bar var healthBar = self.attachAsset('healthBar', { anchorX: 0.5, anchorY: 0.5, y: -50 }); self.takeDamage = function (damage) { self.health -= damage; if (self.health <= 0) { self.health = 0; return true; // Unit destroyed } // Update health bar var healthPercent = self.health / self.maxHealth; healthBar.width = 80 * healthPercent; return false; }; self.findTarget = function () { var closestDistance = Infinity; var closestTarget = null; // Find closest enemy unit for (var i = 0; i < allUnits.length; i++) { var unit = allUnits[i]; if (unit.faction !== self.faction && unit.health > 0) { var dx = unit.x - self.x; var dy = unit.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < closestDistance) { closestDistance = distance; closestTarget = unit; } } } // Check enemy cities var enemyCities = self.faction === 'red' ? blueCities : redCities; for (var i = 0; i < enemyCities.length; i++) { var city = enemyCities[i]; if (city.health > 0) { var dx = city.x - self.x; var dy = city.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < closestDistance) { closestDistance = distance; closestTarget = city; } } } return closestTarget; }; self.update = function () { if (self.health <= 0) return; self.target = self.findTarget(); if (self.target && self.target.health > 0) { var dx = self.target.x - self.x; var dy = self.target.y - self.y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance > self.range) { // Move towards target var moveX = dx / distance * self.moveSpeed; var moveY = dy / distance * self.moveSpeed; // Calculate new position var newX = self.x + moveX; var newY = self.y + moveY; // Check for collision with other units and apply separation var unitRadius = 45; // Minimum distance between units var separationForce = { x: 0, y: 0 }; var nearbyUnits = 0; for (var i = 0; i < allUnits.length; i++) { var otherUnit = allUnits[i]; if (otherUnit !== self && otherUnit.health > 0) { var otherDx = newX - otherUnit.x; var otherDy = newY - otherUnit.y; var otherDistance = Math.sqrt(otherDx * otherDx + otherDy * otherDy); if (otherDistance < unitRadius) { // Apply separation force if (otherDistance > 0) { separationForce.x += otherDx / otherDistance; separationForce.y += otherDy / otherDistance; nearbyUnits++; } else { // Units are on same position, push in random direction var randomAngle = Math.random() * Math.PI * 2; separationForce.x += Math.cos(randomAngle); separationForce.y += Math.sin(randomAngle); nearbyUnits++; } } } } // Apply separation if needed if (nearbyUnits > 0) { separationForce.x /= nearbyUnits; separationForce.y /= nearbyUnits; // Normalize and apply separation var sepLength = Math.sqrt(separationForce.x * separationForce.x + separationForce.y * separationForce.y); if (sepLength > 0) { separationForce.x = separationForce.x / sepLength * self.moveSpeed * 0.5; separationForce.y = separationForce.y / sepLength * self.moveSpeed * 0.5; newX += separationForce.x; newY += separationForce.y; } } // Update position self.x = newX; self.y = newY; // Keep units within bounds self.x = Math.max(40, Math.min(2008, self.x)); self.y = Math.max(40, Math.min(2692, self.y)); } else { // In range, shoot if (LK.ticks - self.lastShot > self.shootCooldown) { self.shoot(); self.lastShot = LK.ticks; } } } }; self.shoot = function () { if (!self.target || self.target.health <= 0) return; var bullet = new Bullet(self.x, self.y, self.target.x, self.target.y, self.damage, self.faction); bullets.push(bullet); game.addChild(bullet); // Play unit-specific shooting sound var shootSoundName = self.type + 'Shoot'; LK.getSound(shootSoundName).play(); }; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x228B22 }); /**** * Game Code ****/ // Game state var allUnits = []; var bullets = []; var redCities = []; var blueCities = []; var gameStarted = false; var showingMenu = true; // Add territory background image var territoryBackground = LK.getAsset('territoryBackground', { anchorX: 0.5, anchorY: 0.5 }); territoryBackground.x = 2048 / 2; territoryBackground.y = 2732 / 2; game.addChild(territoryBackground); // UI var statusText = new Text2('Europa 1941: AI War', { size: 40, fill: 0xFFFFFF }); statusText.anchor.set(0.5, 0); LK.gui.top.addChild(statusText); // Main Menu UI var menuBackground = LK.getAsset('menuBackground', { anchorX: 0.5, anchorY: 0.5 }); menuBackground.alpha = 1.0; // Scale to cover full screen menuBackground.width = 2048; menuBackground.height = 2732; LK.gui.center.addChild(menuBackground); var menuTitle = LK.getAsset('titleImage', { anchorX: 0.5, anchorY: 0.5 }); menuTitle.y = -100; LK.gui.center.addChild(menuTitle); var startButton = LK.getAsset('startButton', { anchorX: 0.5, anchorY: 0.5 }); startButton.y = 150; LK.gui.center.addChild(startButton); var instructionsText = new Text2('Red vs Blue AI armies\nDestroy all enemy cities to win', { size: 25, fill: 0xAAAAA }); instructionsText.anchor.set(0.5, 0.5); instructionsText.y = 250; LK.gui.center.addChild(instructionsText); // Animate start button function animateStartButton() { tween(startButton, { scaleX: 1.2, scaleY: 1.2 }, { duration: 800, yoyo: true, repeat: Infinity }); } animateStartButton(); // Play menu music LK.playMusic('menuMusic'); // BETA text in menu var betaText = new Text2('BETA', { size: 80, fill: 0x0000FF }); betaText.anchor.set(0, 0); betaText.x = -900; betaText.y = -1200; LK.gui.center.addChild(betaText); // Red city counter button var redCityButton = new Container(); var redButtonBg = redCityButton.attachAsset('cityCounterButton', { anchorX: 0.5, anchorY: 0.5 }); redButtonBg.tint = 0xff4444; var redCityText = new Text2('0', { size: 40, fill: 0xFFFFFF }); redCityText.anchor.set(0, 0.5); redCityText.x = 70; redCityButton.addChild(redCityText); redCityButton.x = 180; redCityButton.y = 100; LK.gui.topLeft.addChild(redCityButton); // Blue city counter button var blueCityButton = new Container(); var blueButtonBg = blueCityButton.attachAsset('cityCounterButton', { anchorX: 0.5, anchorY: 0.5 }); blueButtonBg.tint = 0x4444ff; var blueCityText = new Text2('0', { size: 40, fill: 0xFFFFFF }); blueCityText.anchor.set(0, 0.5); blueCityText.x = 70; blueCityButton.addChild(blueCityText); blueCityButton.x = -180; blueCityButton.y = 100; LK.gui.topRight.addChild(blueCityButton); // Button click handlers redCityButton.down = function (x, y, obj) { console.log("Red city button clicked!"); // Add any specific functionality for red city button here }; blueCityButton.down = function (x, y, obj) { console.log("Blue city button clicked!"); // Add any specific functionality for blue city button here }; // Initialize cities function initializeCities() { var minDistance = 120; // Minimum distance between cities // Red cities (left side) for (var i = 0; i < 5; i++) { var city = new City('red'); var attempts = 0; var maxAttempts = 50; var validPosition = false; while (!validPosition && attempts < maxAttempts) { city.x = 150 + Math.random() * 500; // Random x between 150-650 city.y = 200 + Math.random() * 2300; // Random y between 200-2500 validPosition = true; // Check distance from other red cities for (var j = 0; j < redCities.length; j++) { var dx = city.x - redCities[j].x; var dy = city.y - redCities[j].y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < minDistance) { validPosition = false; break; } } attempts++; } redCities.push(city); game.addChild(city); } // Blue cities (right side) for (var i = 0; i < 5; i++) { var city = new City('blue'); var attempts = 0; var maxAttempts = 50; var validPosition = false; while (!validPosition && attempts < maxAttempts) { city.x = 1400 + Math.random() * 500; // Random x between 1400-1900 city.y = 200 + Math.random() * 2300; // Random y between 200-2500 validPosition = true; // Check distance from other blue cities for (var j = 0; j < blueCities.length; j++) { var dx = city.x - blueCities[j].x; var dy = city.y - blueCities[j].y; var distance = Math.sqrt(dx * dx + dy * dy); if (distance < minDistance) { validPosition = false; break; } } attempts++; } blueCities.push(city); game.addChild(city); } } function updateUI() { var redAlive = 0; var blueAlive = 0; // Count alive cities for (var i = 0; i < redCities.length; i++) { if (redCities[i].health > 0) { redAlive++; } } for (var i = 0; i < blueCities.length; i++) { if (blueCities[i].health > 0) { blueAlive++; } } redCityText.setText(redAlive.toString()); blueCityText.setText(blueAlive.toString()); // Check win conditions if (redAlive === 0) { statusText.setText('Blue AI Wins!'); returnToMenu(); } else if (blueAlive === 0) { statusText.setText('Red AI Wins!'); returnToMenu(); } } function cleanupDeadUnits() { for (var i = allUnits.length - 1; i >= 0; i--) { if (allUnits[i].health <= 0) { allUnits[i].destroy(); allUnits.splice(i, 1); } } } // Function to return to main menu function returnToMenu() { // Reset game state gameStarted = false; showingMenu = true; statusText.setText('Europa 1941: AI War'); // Clear all game objects for (var i = 0; i < allUnits.length; i++) { allUnits[i].destroy(); } allUnits = []; for (var i = 0; i < bullets.length; i++) { bullets[i].destroy(); } bullets = []; for (var i = 0; i < redCities.length; i++) { redCities[i].destroy(); } redCities = []; for (var i = 0; i < blueCities.length; i++) { blueCities[i].destroy(); } blueCities = []; // Show menu elements menuBackground.visible = true; menuTitle.visible = true; startButton.visible = true; instructionsText.visible = true; betaText.visible = true; // Reset UI counters redCityText.setText('0'); blueCityText.setText('0'); // Stop background music and play menu music LK.stopMusic(); LK.playMusic('menuMusic'); } // Function to start the game function startGame() { // Hide menu elements menuBackground.visible = false; menuTitle.visible = false; startButton.visible = false; instructionsText.visible = false; betaText.visible = false; showingMenu = false; // Stop menu music and play background music LK.stopMusic(); LK.playMusic('backgroundMusic'); // Start game initialization LK.setTimeout(function () { initializeCities(); gameStarted = true; statusText.setText('Battle in Progress...'); }, 500); } // Touch handler for menu game.down = function (x, y, obj) { if (showingMenu) { startGame(); } }; // Game update loop game.update = function () { if (showingMenu || !gameStarted) return; // Update all units for (var i = 0; i < allUnits.length; i++) { if (allUnits[i].health > 0) { allUnits[i].update(); } } // Update all cities for (var i = 0; i < redCities.length; i++) { redCities[i].update(); } for (var i = 0; i < blueCities.length; i++) { blueCities[i].update(); } // Update all bullets for (var i = 0; i < bullets.length; i++) { bullets[i].update(); } // Cleanup dead units cleanupDeadUnits(); // Update UI updateUI(); };