/**** * Plugins ****/ var tween = LK.import("@upit/tween.v1"); /**** * Classes ****/ var PlantBase = Container.expand(function (plantType) { var self = Container.call(this); self.plantType = plantType; self.health = 100; self.maxHealth = 100; self.cost = 50; self.shootTimer = 0; self.shootDelay = 60; self.gridX = 0; self.gridY = 0; self.level = 1; var graphics = self.attachAsset(plantType, { anchorX: 0.5, anchorY: 0.5 }); self.takeDamage = function (damage) { self.health -= damage; LK.effects.flashObject(self, 0xFF0000, 200); if (self.health <= 0) { self.die(); } }; self.die = function () { plants[self.gridY][self.gridX] = null; self.destroy(); }; self.upgrade = function () { if (sunPoints >= 25 && self.level < 3) { sunPoints -= 25; self.level++; self.shootDelay = Math.max(30, self.shootDelay - 10); graphics.scaleX = graphics.scaleY = 1 + (self.level - 1) * 0.2; updateSunDisplay(); } }; self.down = function (x, y, obj) { self.upgrade(); }; return self; }); var Wallnut = PlantBase.expand(function () { var self = PlantBase.call(this, 'wallnut'); self.cost = 50; self.health = 300; self.maxHealth = 300; return self; }); var Sunflower = PlantBase.expand(function () { var self = PlantBase.call(this, 'sunflower'); self.cost = 50; self.sunTimer = 0; self.update = function () { self.sunTimer++; if (self.sunTimer >= 900) { // 15 seconds var sun = new Sun(self.x, self.y - 60); suns.push(sun); game.addChild(sun); self.sunTimer = 0; LK.effects.flashObject(self, 0xFFFF00, 300); } }; return self; }); var SnowPea = PlantBase.expand(function () { var self = PlantBase.call(this, 'snowpea'); self.cost = 175; self.update = function () { self.shootTimer++; if (self.shootTimer >= self.shootDelay) { var target = self.findTarget(); if (target) { self.shoot(target); self.shootTimer = 0; } } }; self.findTarget = function () { for (var i = 0; i < enemies.length; i++) { var enemy = enemies[i]; if (enemy.gridY === self.gridY && enemy.x > self.x) { return enemy; } } return null; }; self.shoot = function (target) { var snowball = new SlowProjectile('snowball', self.x, self.y, 8, 20 * self.level); projectiles.push(snowball); game.addChild(snowball); LK.getSound('shoot').play(); }; return self; }); var Peashooter = PlantBase.expand(function () { var self = PlantBase.call(this, 'peashooter'); self.cost = 100; self.update = function () { self.shootTimer++; if (self.shootTimer >= self.shootDelay) { var target = self.findTarget(); if (target) { self.shoot(target); self.shootTimer = 0; } } }; self.findTarget = function () { for (var i = 0; i < enemies.length; i++) { var enemy = enemies[i]; if (enemy.gridY === self.gridY && enemy.x > self.x) { return enemy; } } return null; }; self.shoot = function (target) { var pea = new Projectile('pea', self.x, self.y, 8, 20 * self.level); projectiles.push(pea); game.addChild(pea); LK.getSound('shoot').play(); }; return self; }); var Projectile = Container.expand(function (type, startX, startY, speed, damage) { var self = Container.call(this); self.speed = speed; self.damage = damage; self.x = startX; self.y = startY; var graphics = self.attachAsset(type, { anchorX: 0.5, anchorY: 0.5 }); self.update = function () { self.x += self.speed; if (self.x > 2048) { self.removeFromGame(); return; } for (var i = 0; i < enemies.length; i++) { var enemy = enemies[i]; if (self.intersects(enemy)) { enemy.takeDamage(self.damage); self.removeFromGame(); break; } } }; self.removeFromGame = function () { for (var i = 0; i < projectiles.length; i++) { if (projectiles[i] === self) { projectiles.splice(i, 1); break; } } self.destroy(); }; return self; }); var SlowProjectile = Projectile.expand(function (type, startX, startY, speed, damage) { var self = Projectile.call(this, type, startX, startY, speed, damage); var originalUpdate = self.update; self.update = function () { originalUpdate(); for (var i = 0; i < enemies.length; i++) { var enemy = enemies[i]; if (self.intersects(enemy)) { enemy.applySlowEffect(); break; } } }; return self; }); var Sun = Container.expand(function (x, y) { var self = Container.call(this); self.x = x; self.y = y; self.value = 25; self.collectTimer = 0; var graphics = self.attachAsset('sun', { anchorX: 0.5, anchorY: 0.5 }); self.down = function (x, y, obj) { sunPoints += self.value; updateSunDisplay(); self.collect(); }; self.collect = function () { for (var i = 0; i < suns.length; i++) { if (suns[i] === self) { suns.splice(i, 1); break; } } self.destroy(); }; self.update = function () { self.collectTimer++; if (self.collectTimer > 600) { // 10 seconds timeout self.collect(); } }; return self; }); var ZombieBase = Container.expand(function (zombieType) { var self = Container.call(this); self.zombieType = zombieType; self.health = 190; self.maxHealth = 190; self.speed = 1; self.damage = 25; self.gridY = 0; self.attackTimer = 0; self.slowTimer = 0; self.originalSpeed = self.speed; var graphics = self.attachAsset(zombieType, { anchorX: 0.5, anchorY: 0.5 }); self.takeDamage = function (damage) { self.health -= damage; LK.effects.flashObject(self, 0xFF0000, 200); LK.getSound('zombie_hit').play(); if (self.health <= 0) { self.die(); } }; self.die = function () { sunPoints += 25; updateSunDisplay(); for (var i = 0; i < enemies.length; i++) { if (enemies[i] === self) { enemies.splice(i, 1); break; } } self.destroy(); }; self.applySlowEffect = function () { self.slowTimer = 180; self.speed = self.originalSpeed * 0.5; graphics.tint = 0x81C784; }; self.update = function () { if (self.slowTimer > 0) { self.slowTimer--; if (self.slowTimer === 0) { self.speed = self.originalSpeed; graphics.tint = 0xFFFFFF; } } var plantInFront = self.getPlantInFront(); if (plantInFront) { self.attackTimer++; if (self.attackTimer >= 60) { plantInFront.takeDamage(self.damage); self.attackTimer = 0; } } else { self.x -= self.speed; if (self.x < -100) { self.reachSanctuary(); } } }; self.getPlantInFront = function () { var cellX = Math.floor((self.x - gridStartX) / cellSize); if (cellX >= 0 && cellX < gridCols && plants[self.gridY] && plants[self.gridY][cellX]) { return plants[self.gridY][cellX]; } return null; }; self.reachSanctuary = function () { lives--; updateLivesDisplay(); for (var i = 0; i < enemies.length; i++) { if (enemies[i] === self) { enemies.splice(i, 1); break; } } self.destroy(); if (lives <= 0) { LK.effects.flashScreen(0xFF0000, 1000); LK.showGameOver(); } }; return self; }); var Zombie = ZombieBase.expand(function () { var self = ZombieBase.call(this, 'zombie'); self.health = 190; self.maxHealth = 190; self.speed = 1; self.originalSpeed = 1; return self; }); /**** * Initialize Game ****/ var game = new LK.Game({ backgroundColor: 0x1B5E20 }); /**** * Game Code ****/ // Sounds // UI and grid // Undead enemies // Projectiles // Plant defenders // Grid setup - bigger grid centered on screen var gridRows = 5; var gridCols = 9; var cellSize = 144; var gridStartX = (2048 - gridCols * cellSize) / 2; var gridStartY = (2732 - gridRows * cellSize) / 2; // Game state var plants = []; var enemies = []; var projectiles = []; var suns = []; var sunPoints = 300; var lives = 3; var currentWave = 1; var wavesCompleted = 0; var totalWaves = 10; var waveInProgress = false; var enemiesInWave = 0; var enemiesKilled = 0; var sunTimer = 0; // Selected plant type var selectedPlantType = null; var plantTypes = ['sunflower', 'peashooter']; var plantCosts = { 'peashooter': 100, 'sunflower': 50 }; // Ghost plant for preview var ghostPlant = null; // Initialize grid cells array var gridCells = []; // Initialize grid for (var row = 0; row < gridRows; row++) { plants[row] = []; gridCells[row] = []; for (var col = 0; col < gridCols; col++) { plants[row][col] = null; var cell = LK.getAsset('gridcell', { anchorX: 0.5, anchorY: 0.5, alpha: 0.3, x: gridStartX + col * cellSize, y: gridStartY + row * cellSize }); gridCells[row][col] = cell; game.addChild(cell); } } // Sanctuary var sanctuary = LK.getAsset('sanctuary', { anchorX: 0.5, anchorY: 0.5, x: 100, y: gridStartY + gridRows * cellSize / 2 - cellSize / 2 }); game.addChild(sanctuary); // UI Elements var sunDisplay = new Text2('Sun: ' + sunPoints, { size: 60, fill: 0xFFEB3B }); sunDisplay.anchor.set(0, 0); sunDisplay.x = 120; // Offset from left edge to avoid menu icon LK.gui.topLeft.addChild(sunDisplay); var livesDisplay = new Text2('Lives: ' + lives, { size: 60, fill: 0xF44336 }); livesDisplay.anchor.set(0, 0); livesDisplay.y = 80; LK.gui.topRight.addChild(livesDisplay); var waveDisplay = new Text2('Wave: ' + currentWave + '/' + totalWaves, { size: 50, fill: 0x4CAF50 }); waveDisplay.anchor.set(0.5, 0); LK.gui.top.addChild(waveDisplay); // Plant selection UI at bottom var plantButtons = []; var uiY = 2732 - 150; for (var i = 0; i < plantTypes.length; i++) { var button = LK.getAsset(plantTypes[i], { anchorX: 0.5, anchorY: 0.5, x: 200 + i * 220, y: uiY, scaleX: 2.25, scaleY: 2.25 }); button.plantType = plantTypes[i]; button.interactive = true; // Enable button interactivity button.buttonMode = true; // Make it behave like a button button.down = function (x, y, obj) { console.log("Plant button clicked:", this.plantType, "Cost:", plantCosts[this.plantType], "Current suns:", sunPoints); if (sunPoints >= plantCosts[this.plantType]) { selectedPlantType = this.plantType; updatePlantSelection(); } }; game.addChild(button); plantButtons.push(button); // Add cost text var costText = new Text2(plantCosts[plantTypes[i]], { size: 40, fill: 0xFFFFFF }); costText.anchor.set(0.5, 0); costText.x = button.x; costText.y = button.y + 80; game.addChild(costText); } function updatePlantSelection() { for (var i = 0; i < plantButtons.length; i++) { if (plantButtons[i].plantType === selectedPlantType) { plantButtons[i].alpha = 1.0; plantButtons[i].scaleX = plantButtons[i].scaleY = 2.55; } else { plantButtons[i].alpha = 0.6; plantButtons[i].scaleX = plantButtons[i].scaleY = 2.25; } } // Remove existing ghost plant if (ghostPlant) { ghostPlant.destroy(); ghostPlant = null; } // Create new ghost plant if a type is selected if (selectedPlantType) { ghostPlant = LK.getAsset(selectedPlantType, { anchorX: 0.5, anchorY: 0.5, alpha: 0.6, tint: 0x88FF88 }); game.addChild(ghostPlant); } // Highlight valid placement squares for (var row = 0; row < gridRows; row++) { for (var col = 0; col < gridCols; col++) { if (selectedPlantType && canPlacePlant(col, row, selectedPlantType)) { // Green highlight for valid empty squares gridCells[row][col].tint = 0x00FF00; gridCells[row][col].alpha = 0.7; } else if (selectedPlantType && plants[row][col] !== null) { // Red highlight for occupied squares when plant is selected gridCells[row][col].tint = 0xFF0000; gridCells[row][col].alpha = 0.5; } else { // Normal appearance for unselected or invalid squares gridCells[row][col].tint = 0xFFFFFF; gridCells[row][col].alpha = 0.3; } } } } function updateSunDisplay() { sunDisplay.setText('Sun: ' + sunPoints); } function updateLivesDisplay() { livesDisplay.setText('Lives: ' + lives); } function updateWaveDisplay() { waveDisplay.setText('Wave: ' + currentWave + '/' + totalWaves); } function getGridPosition(x, y) { var gridX = Math.floor((x - gridStartX + cellSize / 2) / cellSize); var gridY = Math.floor((y - gridStartY + cellSize / 2) / cellSize); if (gridX >= 0 && gridX < gridCols && gridY >= 0 && gridY < gridRows) { return { x: gridX, y: gridY }; } return null; } function canPlacePlant(gridX, gridY, plantType) { // Check if grid position is valid if (gridX < 0 || gridX >= gridCols || gridY < 0 || gridY >= gridRows) { return false; } // Check if square is empty and player has enough suns return plants[gridY][gridX] === null && sunPoints >= plantCosts[plantType]; } function placePlant(gridX, gridY, plantType) { // Double-check that placement is valid before proceeding if (!canPlacePlant(gridX, gridY, plantType)) { return false; } var plant; switch (plantType) { case 'peashooter': plant = new Peashooter(); break; case 'sunflower': plant = new Sunflower(); break; case 'wallnut': plant = new Wallnut(); break; case 'snowpea': plant = new SnowPea(); break; default: return false; } // Set plant position and grid reference plant.gridX = gridX; plant.gridY = gridY; plant.x = gridStartX + gridX * cellSize; plant.y = gridStartY + gridY * cellSize; // Place plant in grid and add to game plants[gridY][gridX] = plant; game.addChild(plant); // Deduct cost and update UI sunPoints -= plantCosts[plantType]; updateSunDisplay(); LK.getSound('plant').play(); // Flash the grid cell to show successful placement LK.effects.flashObject(gridCells[gridY][gridX], 0x00FF00, 300); return true; } function spawnZombie(type, row) { var zombie; switch (type) { case 'zombie': zombie = new Zombie(); break; default: return; } zombie.gridY = row; zombie.x = 2100; zombie.y = gridStartY + row * cellSize; enemies.push(zombie); game.addChild(zombie); } function startWave() { if (waveInProgress) { return; } waveInProgress = true; enemiesInWave = currentWave === 1 ? Math.floor(Math.random() * 2) + 3 : 5 + currentWave * 2; // 3-4 zombies for wave 1 enemiesKilled = 0; var spawnTimer = LK.setInterval(function () { if (enemiesInWave > 0) { var row = Math.floor(Math.random() * gridRows); var zombieType = 'zombie'; spawnZombie(zombieType, row); enemiesInWave--; } else { LK.clearInterval(spawnTimer); } }, 1000); } // Mouse move handler to update ghost plant position game.move = function (x, y, obj) { if (ghostPlant && selectedPlantType) { var gridPos = getGridPosition(x, y); if (gridPos) { // Snap to grid position ghostPlant.x = gridStartX + gridPos.x * cellSize; ghostPlant.y = gridStartY + gridPos.y * cellSize; // Change color based on validity if (canPlacePlant(gridPos.x, gridPos.y, selectedPlantType)) { ghostPlant.tint = 0x88FF88; // Green tint for valid placement } else { ghostPlant.tint = 0xFF8888; // Red tint for invalid placement } } else { // Follow cursor if outside grid ghostPlant.x = x; ghostPlant.y = y; ghostPlant.tint = 0xFF8888; // Red tint when outside grid } } }; // Game input handling game.down = function (x, y, obj) { // Check if clicking on a sun for (var i = 0; i < suns.length; i++) { if (suns[i].intersects({ x: x, y: y, width: 1, height: 1 })) { return; // Let sun handle its own click } } // Check if placing a plant if (selectedPlantType) { var gridPos = getGridPosition(x, y); if (gridPos) { if (canPlacePlant(gridPos.x, gridPos.y, selectedPlantType)) { // Successfully place the plant if (placePlant(gridPos.x, gridPos.y, selectedPlantType)) { selectedPlantType = null; updatePlantSelection(); return; } } else if (plants[gridPos.y][gridPos.x] !== null) { // Flash red if trying to place on occupied square LK.effects.flashObject(gridCells[gridPos.y][gridPos.x], 0xFF0000, 300); } else if (sunPoints < plantCosts[selectedPlantType]) { // Flash yellow if not enough suns LK.effects.flashObject(gridCells[gridPos.y][gridPos.x], 0xFFFF00, 300); } } else { // Clicking outside grid cancels selection selectedPlantType = null; updatePlantSelection(); } } }; // Initialize UI updatePlantSelection(); updateSunDisplay(); updateLivesDisplay(); updateWaveDisplay(); // Start first wave after a delay LK.setTimeout(function () { startWave(); }, 5000); // Main game loop game.update = function () { // Falling sun system - every 15 seconds sunTimer++; if (sunTimer >= 900) { // 15 seconds at 60fps var fallingSun = new Sun(Math.random() * (gridStartX + gridCols * cellSize - gridStartX) + gridStartX, -50); suns.push(fallingSun); game.addChild(fallingSun); // Animate falling sun tween(fallingSun, { y: Math.random() * 200 + 300 }, { duration: 2000, easing: tween.easeOut }); sunTimer = 0; } // Check wave completion if (waveInProgress && enemiesInWave === 0 && enemies.length === 0) { waveInProgress = false; wavesCompleted++; if (wavesCompleted >= totalWaves) { LK.effects.flashScreen(0x4CAF50, 1000); LK.showYouWin(); return; } currentWave++; updateWaveDisplay(); // Start next wave after delay LK.setTimeout(function () { startWave(); }, 3000); } // Auto-start next wave if no enemies and no wave in progress if (!waveInProgress && enemies.length === 0 && enemiesInWave === 0 && wavesCompleted < totalWaves) { LK.setTimeout(function () { startWave(); }, 1000); } };