Wind parameters - configurable hair physics

plugins/rollup.js

@@ -31,6 +31,7 @@ const text = require('../types/text.js');
 //const fog = require('../types/fog.js');
 // const background = require('../types/background.js');
 const rendersettings = require('../types/rendersettings.js');
+const windsettings = require('../types/windsettings.js');
 const spawnpoint = require('../types/spawnpoint.js');
 const group = require('../types/group.js');
 const directory = require('../types/.js');
@@ -55,6 +56,7 @@ const loaders = {
   // fog,
   // background,
   rendersettings,
+  windsettings,
   spawnpoint,
   group,
   '': directory,
@@ -75,7 +77,7 @@ const _getType = id => {
     }
     let extension;
     let match2;
-    if (match2 = type.match(/^application\/(light|text|rendersettings|group|spawnpoint)$/)) {
+    if (match2 = type.match(/^application\/(light|text|rendersettings|group|spawnpoint|windsettings)$/)) {
       extension = match2[1];
     } else {
       extension = mimeTypes.extension(type);

type_templates/windsettings.js

@@ -0,0 +1,45 @@
+import * as THREE from 'three';
+import metaversefile from 'metaversefile';
+const {useApp, useFrame, useCleanup, useWorld} = metaversefile;
+
+const localVector = new THREE.Vector3();
+const localVector2 = new THREE.Vector3();
+
+export default e => {
+  const app = useApp();
+  app.appType = 'wind';
+
+  // const {gifLoader} = useLoaders();
+  const world = useWorld();
+
+  const srcUrl = '${this.srcUrl}';
+
+  e.waitUntil((async () => {
+    const res = await fetch(srcUrl);
+    const j = await res.json();
+    let {forceFactor, direction, refreshDelay} = j;
+
+    const windParameters = world.getWindParameters();
+    windParameters.forceFactor = forceFactor;
+    windParameters.refreshDelay = refreshDelay;
+    windParameters.direction = new THREE.Vector3();
+    windParameters.direction.fromArray(direction);
+
+  })());
+
+  useFrame(() => {
+
+  });
+
+  useCleanup(() => {
+
+    const windParameters = world.getWindParameters();
+
+    windParameters.forceFactor = 0;
+    windParameters.refreshDelay = 10000.0; //10s
+    windParameters.direction.set(0,0,0);
+
+  });
+
+  return app;
+};

types/windsettings.js

@@ -0,0 +1,22 @@
+const path = require('path');
+const fs = require('fs');
+const {fillTemplate} = require('../util.js');
+
+const templateString = fs.readFileSync(path.join(__dirname, '..', 'type_templates', 'windsettings.js'), 'utf8');
+const cwd = process.cwd();
+
+module.exports = {
+  load(id) {
+    if (id.startsWith(cwd)) {
+      id = id.slice(cwd.length);
+    }
+    const code = fillTemplate(templateString, {
+      srcUrl: id,
+    });
+    // console.log('got image id', id);
+    return {
+      code,
+      map: null,
+    };
+  },
+};