// Scene Setup
class SceneManager {
    constructor() {
        this.scene = new THREE.Scene();
        this.scene.background = new THREE.Color(0xffffff);
        
        this.setupLighting();
        this.setupGrid();
    }
    
    setupLighting() {
        const ambientLight = new THREE.AmbientLight(0xffffff, 0.6);
        this.scene.add(ambientLight);
        
        const directionalLight = new THREE.DirectionalLight(0xffffff, 0.8);
        directionalLight.position.set(5, 10, 5);
        this.scene.add(directionalLight);
    }
    
    setupGrid() {
        this.gridHelper = new THREE.GridHelper(20, 20, 0x000000, 0x888888);
        this.scene.add(this.gridHelper);
    }
    
    getScene() {
        return this.scene;
    }
    
    getGridHelper() {
        return this.gridHelper;
    }
}