Write JavaScript code for: Implement the following architecture: ([['write a futuristic snake  in 3D', 'Certainly! Let\'s create a 3D version of the classic Snake game with a futuristic theme. We\'ll use **Python** along with the **Panda3D** game engine, which is suitable for 3D game development in Python.<br/><br/>**Prerequisites:**<br/><br/>1. **Python 3.7 or higher**: Ensure you have Python installed. You can download it from [python.org](https://www.python.org/downloads/).<br/><br/>2. **Panda3D**: Install Panda3D using pip:<br/><pre><code class="```bash"><br/>   pip install panda3d<pre><code class="```"><br/><br/>3. **3D Models and Textures**: You\'ll need models for the snake segments and the environment. You can create your own or find free assets online. For a futuristic theme, consider models with glowing neon textures or metallic finishes.<br/><br/>---<br/><br/>### Overview:<br/><br/>We\'ll build a basic 3D Snake game that includes:<br/><br/>- A snake made up of segments that moves in 3D space.<br/>- User controls to navigate the snake in three dimensions.<br/>- A futuristic-themed environment.<br/>- Simple collision detection with the environment boundaries.<br/><br/>---<br/><br/>### Step-by-Step Implementation:<br/><br/>#### **1. Import Necessary Modules**<br/><pre><code class="python"><br/>from direct.showbase.ShowBase import ShowBase<br/>from panda3d.core import (<br/>    Vec3, Vec4, Point3, AmbientLight, DirectionalLight, CollisionTraverser,<br/>    CollisionNode, CollisionSphere, CollisionHandlerQueue, LVector3<br/>)<br/>from direct.task import Task<br/>import sys</code></pre><br/><br/>#### **2. Create the Main Game Class**<br/><pre><code class="python"><br/>class FuturisticSnakeGame(ShowBase):<br/>    def __init__(self):<br/>        super().__init__()<br/>        self.disable_mouse_control()<br/>        self.setup_environment()<br/>        self.setup_lighting()<br/>        self.setup_camera()<br/>        self.setup_snake()<br/>        self.setup_controls()<br/>        self.game_task = self.taskMgr.add(self.game_loop, "GameLoop")<br/>        self.accept("escape", sys.exit)</code></pre><br/><br/>#### **3. Disable the Default Mouse Control**<br/><pre><code class="python"><br/>    def disable_mouse_control(self):<br/>        self.disableMouse()</code></pre><br/><br/>#### **4. Set Up the Environment**<br/><pre><code class="python"><br/>    def setup_environment(self):<br/>        # Load a futuristic environment model<br/>        self.environment = self.loader.loadModel("models/futuristic_environment")<br/>        self.environment.reparentTo(self.render)<br/>        self.environment.setScale(5)<br/>        self.environment.setPos(0, 0, 0)</code></pre><br/><br/>*Make sure to have a `futuristic_environment` model in your `models` directory or adjust the path accordingly.*<br/><br/>#### **5. Set Up Lighting**<br/><pre><code class="python"><br/>    def setup_lighting(self):<br/>        # Ambient light<br/>        ambient_light = AmbientLight("ambientLight")<br/>        ambient_light.setColor(Vec4(0.2, 0.2, 0.2, 1))<br/>        self.ambient_light_node = self.render.attachNewNode(ambient_light)<br/>        self.render.setLight(self.ambient_light_node)<br/><br/>        # Directional light<br/>        directional_light = DirectionalLight("directionalLight")<br/>        directional_light.setDirection(LVector3(-1, -1, -1))<br/>        directional_light.setColor(Vec4(0.8, 0.8, 0.8, 1))<br/>        self.directional_light_node = self.render.attachNewNode(directional_light)<br/>        self.render.setLight(self.directional_light_node)</code></pre><br/><br/>#### **6. Set Up the Camera**<br/><pre><code class="python"><br/>    def setup_camera(self):<br/>        self.camera.setPos(0, -20, 10)<br/>        self.camera.lookAt(0, 0, 0)</code></pre><br/><br/>#### **7. Initialize the Snake**<br/><pre><code class="python"><br/>    def setup_snake(self):<br/>        self.snake = []<br/>        self.snake_direction = Vec3(1, 0, 0)<br/>        self.snake_speed = 5  # Units per second<br/>        self.segment_spacing = 0.5<br/><br/>        # Create initial snake segments<br/>        for i in range(5):<br/>            segment = self.loader.loadModel("models/futuristic_snake_segment")<br/>            segment.reparentTo(self.render)<br/>            segment.setPos(-i * self.segment_spacing, 0, 0)<br/>            self.snake.append(segment)</code></pre><br/><br/>*Ensure you have a `futuristic_snake_segment` model in your `models` directory.*<br/><br/>#### **8. Set Up User Controls**<br/><pre><code class="python"><br/>    def setup_controls(self):<br/>        self.key_map = {<br/>            "left": False,<br/>            "right": False,<br/>            "up": False,<br/>            "down": False,<br/>            "forward": False,<br/>            "backward": False<br/>        }<br/><br/>        self.accept("arrow_left", self.set_key, ["left", True])<br/>        self.accept("arrow_left-up", self.set_key, ["left", False])<br/>        self.accept("arrow_right", self.set_key, ["right", True])<br/>        self.accept("arrow_right-up", self.set_key, ["right", False])<br/>        self.accept("arrow_up", self.set_key, ["up", True])<br/>        self.accept("arrow_up-up", self.set_key, ["up", False])<br/>        self.accept("arrow_down", self.set_key, ["down", True])<br/>        self.accept("arrow_down-up", self.set_key, ["down", False])<br/>        self.accept("w", self.set_key, ["forward", True])<br/>        self.accept("w-up", self.set_key, ["forward", False])<br/>        self.accept("s", self.set_key, ["backward", True])<br/>        self.accept("s-up", self.set_key, ["backward", False])</code></pre><br/><pre><code class="python"><br/>    def set_key(self, key, value):<br/>        self.key_map[key] = value</code></pre><br/><br/>#### **9. Game Loop Task**<br/><pre><code class="python"><br/>    def game_loop(self, task):<br/>        dt = globalClock.getDt()<br/>        self.handle_input(dt)<br/>        self.move_snake(dt)<br/>        return Task.cont</code></pre><br/><br/>#### **10. Handle User Input**<br/><pre><code class="python"><br/>    def handle_input(self, dt):<br/>        direction = Vec3(0, 0, 0)<br/>        if self.key_map["left"]:<br/>            direction += Vec3(-1, 0, 0)<br/>        if self.key_map["right"]:<br/>            direction += Vec3(1, 0, 0)<br/>        if self.key_map["up"]:<br/>            direction += Vec3(0, 1, 0)<br/>        if self.key_map["down"]:<br/>            direction += Vec3(0, -1, 0)<br/>        if self.key_map["forward"]:<br/>            direction += Vec3(0, 0, 1)<br/>        if self.key_map["backward"]:<br/>            direction += Vec3(0, 0, -1)<br/><br/>        if direction.length() &gt; 0:<br/>            self.snake_direction = direction.normalized()</code></pre><br/><br/>#### **11. Move the Snake**<br/><pre><code class="python"><br/>    def move_snake(self, dt):<br/>        # Calculate new position for the head<br/>        head = self.snake[0]<br/>        new_head_pos = head.getPos() + self.snake_direction * self.snake_speed * dt<br/>        head.setPos(new_head_pos)<br/><br/>        # Move each segment to the position of the segment ahead of it<br/>        for i in range(1, len(self.snake)):<br/>            prev_segment = self.snake[i - 1]<br/>            curr_segment = self.snake[i]<br/><br/>            # Calculate the vector from the current segment to the previous segment<br/>            vec_to_prev = prev_segment.getPos() - curr_segment.getPos()<br/>            distance = vec_to_prev.length()<br/><br/>            # If the segments are too far apart, move the current segment closer<br/>            if distance &gt; self.segment_spacing:<br/>                direction = vec_to_prev.normalized()<br/>                move_distance = distance - self.segment_spacing<br/>                curr_segment.setPos(curr_segment.getPos() + direction * move_distance)</code></pre><br/><br/>#### **12. Run the Game**<br/><pre><code class="python"><br/>if __name__ == "__main__":<br/>    game = FuturisticSnakeGame()<br/>    game.run()</code></pre><br/><br/>---<br/><br/>### Additional Notes:<br/><br/>- **Models and Textures**: Replace `"models/futuristic_environment"` and `"models/futuristic_snake_segment"` with the paths to your actual models.<br/>  - You can create simple models using software like Blender and export them in a format supported by Panda3D (`.egg` or `.bam`).<br/>  - For a futuristic look, consider using emissive (glowing) materials and sleek designs.<br/><br/>- **Collision Detection**: This basic version does not include collision detection with walls or the snake itself. You can add collision solids and use Panda3D\'s collision system to handle this.<br/><br/>- **Food Items and Scoring**: To make the game more complete, implement food items that the snake can "eat" to grow longer, and keep track of the score.<br/><br/>- **Game Over Conditions**: Define boundaries for the playable area and conditions under which the game ends (e.g., colliding with walls or the snake\'s own body).<br/><br/>- **User Interface (UI)**: Add a heads-up display (HUD) to show the score, game status, etc.<br/><br/>---<br/><br/>### Enhancing the Futuristic Theme:<br/><br/>- **Visual Effects**: Use shaders to add glow effects, reflections, or other futuristic visual styles. Panda3D supports GLSL shaders that can be applied to models.<br/><br/>- **Sound Effects and Music**: Incorporate ambient sci-fi music and sound effects for movement, collisions, and other in-game actions.<br/><br/>- **Environment Design**: Create an environment that reflects a futuristic setting, such as a floating platform in space, a neon-lit cityscape, or a virtual grid world.<br/><br/>---<br/><br/>### Disclaimer:<br/><br/>This example provides a simplified framework for a 3D snake game. Developing a fully functional game involves more complexity, including proper collision handling, game state management, and polished graphics and sound. Be prepared to iterate on this code and consult the Panda3D documentation for advanced features.<br/><br/>- **Panda3D Documentation**: https://docs.panda3d.org/<br/><br/>- **Community and Support**: The Panda3D community forums can be a helpful resource if you encounter issues or have questions.<br/><br/>---<br/><br/>**Happy coding! If you need further assistance with specific features or have questions, feel free to ask.**']], 1, '<Response [200]>', {'interactive': True, '__type__': 'update'})