SEELE AI Gaming Platform

Please use Three.js to generate a **mobile-first game** with the theme "**Stone Grass: Mowing Simulator**". Please read the following detailed game design requirements first, and then generate the code accordingly: ### 1. Assets & Environment * **Visual Style:** Use a **vibrant, high-saturation Low-Poly aesthetic**. The world should feel bright and inviting, similar to hyper-casual mobile hits. * **Player Character (Mower):** Create a stylized, blocky red tractor with large rear wheels and a visible front attachment consisting of rotating circular saw blades. Include a simple white "stickman-style" or faceless humanoid driver. * **Grass System (Crucial):** Implement a **highly optimized instanced mesh system** for the grass. * Grass blades should be simple geometric shapes (triangles) to keep the polygon count low. * **Interactive Shader:** The grass must react to the mower's position—vanishing or scaling down to zero instantly upon collision with the saw blades to simulate "cutting." * **Stacks:** When grass is cut, spawn simple cubic "hay bales" that visually stack onto the back of the tractor. * **Environment:** A flat, grid-based terrain with a bright green texture. The "uncut" areas should look dense and wild, while "cut" areas show a manicured lawn texture. Include a designated "Base/Barn" zone (a simple geometric structure) for selling grass. * **Camera:** Use an **Orthographic Camera** positioned at a high angle (isometric view, approx 45-60 degrees) to give a clear view of the field and the mower. * **Mobile Optimization:** Use simple Lambert or Phong materials. Avoid complex real-time shadows; use baked ambient occlusion or a simple directional light if necessary. Limit draw calls by merging static geometries. ### 2. Audio Requirements * **BGM:** A looping, **upbeat acoustic track** featuring ukulele, whistling, or light percussion to evoke a sunny, relaxing farm atmosphere. It should be non-intrusive. * **SFX - Mowing:** A continuous, satisfying **humming/buzzing noise** that varies slightly in pitch based on the tractor's speed. A distinct "shredding" sound when actively hitting grass patches. * **SFX - Collection:** A high-pitched "pop" or "whoosh" sound when grass is converted into stacks on the truck. * **SFX - Selling:** A "cash register" or "coin counting" sound effect when the player enters the Base zone to offload grass. * **SFX - Engine:** An idle rumble when stopped, pitching up when accelerating. ### 3. Gameplay Loop * **Core Mechanic:** The player drives the tractor into dense grass to cut it. * **Capacity Limit:** The tractor has a limited storage capacity (visualized by the stack height on the back). Once full, the player cannot cut more grass until they empty it. * **Selling:** Driving to the "Base/Barn" zone automatically clears the inventory and converts the cut grass into "Money." * **Upgrade System (Incremental):** * Use the earned Money to buy upgrades via a simple on-screen UI. * **Speed:** Increases tractor movement speed. * **Saw:** Increases the width/radius of the cutting area. * **Capacity:** Increases the max amount of grass the tractor can hold. * **Progression:** As the player clears the field, new "islands" or zones can be unlocked (bridge building or gate opening) using Money. ### 4. Mobile Controls & Interaction * **Screen Orientation:** **Portrait Mode** (Vertical) is preferred for one-handed play, but the camera system should adapt to the window aspect ratio. * **Controls:** Implement a **"Floating Virtual Joystick"**. * The player can touch anywhere on the bottom half of the screen and drag to move. The tractor should align its rotation with the drag vector and move forward. * Release touch to stop. * **UI/UX:** * **Upgrade Buttons:** Place large, thumb-friendly buttons (minimum 44x44px, ideally larger) at the bottom of the screen. They should be disabled (greyed out) if the player lacks funds. * **HUD:** Display a "Cash" counter at the top center and a "Storage" bar (e.g., "10/20") to show capacity status. * **Feedback:** Add **Haptic Feedback** (vibration) when cutting thick grass or when the storage is full. Add floating text ("+$10") when selling grass. Do not ask for clarification. Do not request confirmation. Directly execute the generation task based on the given instructions.