Stacky Bird - Free Online Egg Stacking Arcade Game - Casual Game

Please use Three.js to generate a **mobile-first game** with the theme "Stacky Bird". Please read the following detailed game design requirements first, and then generate the code accordingly: ### 1. Assets & Environment * **Visual Style**: Hyper-casual, "Cute Voxel" aesthetic. Use 3D primitives (BoxGeometry) with slightly rounded corners (bevels) or smooth shading to create a soft, friendly look. * **Color Palette**: High saturation and brightness. Sky blue background (`#00BFFF`), vibrant green ground (`#32CD32`), and a white/pink cube character. Obstacles should be distinct colors (e.g., dark wood or grey stone) to differentiate from the background. * **Character**: A simple cube representing a bird/animal. It needs a basic face texture (eyes and beak/snout) on the front face. * **The "Eggs"**: These are the core mechanic. They should be identical cubes that spawn instantly beneath the player character. They need a different texture or color (e.g., white with colored polka dots) to distinguish them from the character. * **Performance (Mobile Optimization)**: Use `THREE.InstancedMesh` for the stacked eggs and environmental blocks to minimize draw calls. Use simple Lambert or Phong materials rather than expensive PBR. Shadows should be baked or limited to a single directional light source. ### 2. Audio Requirements * **BGM**: A fast-paced, whimsical, and looping 8-bit or synth-pop track. It should feel energetic and motivating. * **Sound Effects (SFX)**: * **Stacking**: A satisfying, high-pitched "pop" or "bloop" sound every time an egg is spawned. * **Collision (Safe)**: A wooden "thud" or "crunch" when the egg stack hits a wall and gets destroyed (lowering the player). * **Collision (Fail)**: A comedic "splat" or sad trombone when the bird body hits a wall directly. * **Shooty Mode**: A rapid-fire laser sound when the special mode is active. ### 3. Gameplay Loop * **Core Mechanics**: The bird moves forward automatically at a constant speed along the X-axis. The camera follows the bird. * **Stacking Action**: When the player interacts, a cube (egg) is instantiated directly *under* the bird, instantly raising the bird's Y-position by one unit. The player can rapid-tap to build a tower. * **Obstacles & Physics**: * **Walls**: Vertical blocks of varying heights. To pass, the egg tower must be higher than the wall. * **Destruction Logic**: If the egg tower hits a wall, the eggs interacting with the wall are destroyed (removed from the stack), but the bird continues moving. * **Fail State**: If the *bird itself* hits a wall (i.e., the stack wasn't high enough), the game ends immediately. * **Gaps**: Pits in the ground. The player must stack eggs to bridge the gap; eggs dropped into the pit are lost. * **Shooty Mode (Bonus)**: Logic to track "perfect landings" (clearing an obstacle exactly). After 3 consecutive perfect landings, the bird shoots projectiles for 5 seconds that destroy upcoming walls. * **Winning**: Reaching the checkered flag at the end of the level. ### 4. Mobile Controls & Interaction * **Touch Input**: Implement a global event listener for `touchstart` (and `mousedown` for debug). No specific buttons needed for gameplay; tapping anywhere on the screen triggers the "Stack" function. * **Responsiveness**: The "Stack" action must be zero-latency. Debounce slightly to prevent accidental double-spawns, but keep it responsive enough for rapid tapping. * **Orientation**: Landscape mode is preferred to see upcoming obstacles, but the camera FOV should adapt if the user is in Portrait mode. * **UI/UX**: * Start Screen: Large "Tap to Start" overlay. * Game Over: A modal with a large, thumb-friendly "Restart" button (min-height 50px). * Score/Level Progress: Displayed clearly at the top center, ensuring it doesn't overlap with the notch area on modern phones. Do not ask for clarification. Do not request confirmation. Directly execute the generation task based on the given instructions.