music-video-gen/party-cathedral/src/scene/rose-window-light.js

66 lines
2.2 KiB
JavaScript

import * as THREE from 'three';
import { state } from '../state.js';
import { SceneFeature } from './SceneFeature.js';
import sceneFeatureManager from './SceneFeatureManager.js';
export class RoseWindowLight extends SceneFeature {
constructor() {
super();
this.spotlight = null;
this.helper = null;
sceneFeatureManager.register(this);
}
init() {
// --- Dimensions for positioning ---
const length = 40;
const naveHeight = 15;
const stageDepth = 5;
// --- Create the spotlight ---
this.spotlight = new THREE.SpotLight(0xffffff, 100.0); // White light, high intensity
this.spotlight.position.set(0, naveHeight, -length / 2 + 10); // Position it at the rose window
this.spotlight.angle = Math.PI / 9; // A reasonably focused beam
this.spotlight.penumbra = 0.3; // Soft edges
this.spotlight.decay = 0.7;
this.spotlight.distance = 30;
this.spotlight.castShadow = false;
this.spotlight.shadow.mapSize.width = 1024;
this.spotlight.shadow.mapSize.height = 1024;
this.spotlight.shadow.camera.near = 1;
this.spotlight.shadow.camera.far = 30;
this.spotlight.shadow.focus = 1;
// --- Create a target for the spotlight to aim at ---
const targetObject = new THREE.Object3D();
targetObject.position.set(0, 0, -length / 2 + stageDepth); // Aim at the center of the stage
state.scene.add(targetObject);
this.spotlight.target = targetObject;
state.scene.add(this.spotlight);
// --- Add a debug helper ---
if (state.debugLight) {
this.helper = new THREE.SpotLightHelper(this.spotlight);
state.scene.add(this.helper);
}
}
update(deltaTime) {
if (!this.spotlight) return;
// Make the light pulse with the music
if (state.music) {
const baseIntensity = 4.0;
this.spotlight.intensity = baseIntensity + state.music.beatIntensity * 1.0;
}
// Update the helper if it exists
if (this.helper) {
this.helper.update();
}
}
}
new RoseWindowLight();