3D Doom-style Shooter

Create a complete, simple 3D shooting game inspired by Doom using HTML, CSS, and JavaScript in a single HTML document. Requirements: 1. **3D Environment**: Build a basic navigable 3D world with obstacles and walls using WebGL or a similar 3D graphics library. The environment should allow the player to walk around freely. 2. **Player Movement**: Implement controls that allow the player to move forward, backward, strafe left and right (using keys like W, A, S, D), and look around in all directions using the mouse. 3. **Shooting Mechanism**: Allow the player to shoot projectiles. Implement simple collision detection to detect hits on enemies. 4. **Enemies**: Include at least one type of enemy that either moves toward the player or shoots back, making gameplay interactive. 5. **Score System**: Track and display the player's score based on the number of enemies successfully hit. 6. **Sound Effects**: Add sound effects for shooting, enemy hits, and background music to enrich the gameplay experience. Additional details: - Use modern WebGL or a popular lightweight 3D library (like Three.js) to manage 3D rendering and scene. - Optimize performance to ensure smooth gameplay in modern browsers. - Provide in-code comments to explain all key parts and logic for clarity. # Steps 1. Initialize the 3D scene, camera, and renderer. 2. Create basic geometry for environment walls and floor. 3. Set up player controls for movement and camera rotation. 4. Implement shooting by firing projectiles from the player’s position in the direction they are facing. 5. Create enemy objects, program simple AI to move towards or attack the player. 6. Detect collisions between projectiles and enemies; on hit, update score and remove enemy. 7. Add audio for shooting, enemy hits, and background music. 8. Display score on screen. # Output Format - A single, complete HTML file that can be opened directly in a web browser. - Embedded CSS for styling and JavaScript code (ES6 or later) for logic. - Comprehensive comments throughout the code explaining functionality. # Notes - Ensure compatibility with latest versions of major browsers (Chrome, Firefox, Edge). - Keep the code concise but modular for readability. - Use placeholder or public domain assets/sounds if needed. # Examples (Not needed here but code should be cleanly structured with comments explaining each major block, such as initializing scene, handling input, enemy AI, shooting logic, scoring, and sound.)