feat: Add legacy shaders, model I/O, and project panel functionality

- Introduced `legacy-shaders.js` containing vertex and fragment shaders for rendering.
- Implemented `model-io.js` for parsing and encoding GLB files, ensuring compatibility with glTF 2.0.
- Created `project-panel.js` to manage project resources and survey overlays, enhancing user interaction.
- Added `solar.js` for calculating solar positions based on UTC time, latitude, and longitude.
- Developed `three-renderer.js` as a standard backend for Three.js, managing scene rendering and material synchronization.
- Included a new GLB model `dum.glb` for testing and demonstration purposes.
- Established `data_checks.mjs` for validating model data and ensuring integrity of assets.
- Created `prepare_export.py` to facilitate Blender GLB exports, maintaining material and node references.
- Added `vendor_three.py` to download and configure a local version of Three.js for the project.

locenice/index.php

@@ -1,10 +1,3 @@
 <?php
-// Upload this whole folder, not only this file. No Node.js or database required.
-header('Content-Type: text/html; charset=utf-8');
-header('X-Content-Type-Options: nosniff');
-$file = __DIR__ . '/app.html';
-if (!is_readable($file)) {
-    http_response_code(500);
-    exit('Chybi app.html. Nahrajte celou slozku locenice.');
-}
-readfile($file);
+
+readfile(__DIR__ . '/dum_3D_slunce.html');

locenice2/blender/prepare_model.py

@@ -8,7 +8,7 @@ import json
 import bpy
 
 ROOT=Path(__file__).resolve().parent.parent
-SOURCE=ROOT/'locenice'/'models'/'dum.glb'
+SOURCE=ROOT/'models'/'dum.glb'
 TARGET=Path(__file__).resolve().parent/'dum_locenice.blend'
 if not SOURCE.is_file():
     raise FileNotFoundError(SOURCE)
@@ -16,7 +16,7 @@ if TARGET.exists():
     raise FileExistsError(f'Rename or remove {TARGET} before running again.')
 bpy.ops.wm.read_factory_settings(use_empty=True)
 bpy.ops.import_scene.gltf(filepath=str(SOURCE))
-defaults=json.loads((ROOT/'locenice'/'data'/'catalog.json').read_text())['defaults']
+defaults=json.loads((ROOT/'data'/'catalog.json').read_text())['defaults']
 scene=bpy.context.scene
 scene.unit_settings.system='METRIC'
 scene.unit_settings.scale_length=1.0
@@ -60,6 +60,6 @@ Blender reorders glTF nodes, materials and textures. The included web manifest
 is indexed for the supplied GLB; the preparation tool rebinds stable IDs.
 A changed wall or cabinet also requires checking web collision volumes / camera presets.
 ''')
-scene['locenice_metadata_json']=json.dumps(json.loads((ROOT/'locenice'/'data'/'scene.json').read_text()),ensure_ascii=False)
+scene['locenice_metadata_json']=json.dumps(json.loads((ROOT/'data'/'scene.json').read_text()),ensure_ascii=False)
 bpy.ops.wm.save_as_mainfile(filepath=str(TARGET))
 print('Saved:',TARGET)

locenice2/index.php

@@ -0,0 +1,10 @@
+<?php
+// Upload this whole folder, not only this file. No Node.js or database required.
+header('Content-Type: text/html; charset=utf-8');
+header('X-Content-Type-Options: nosniff');
+$file = __DIR__ . '/app.html';
+if (!is_readable($file)) {
+    http_response_code(500);
+    exit('Chybi app.html. Nahrajte celou slozku locenice2.');
+}
+readfile($file);

locenice2/tests/data_checks.mjs

@@ -1,8 +1,8 @@
 import fs from 'node:fs';
 import assert from 'node:assert/strict';
-import {parseGLB,encodeGLB} from '../locenice/js/model-io.js';
-import {solarPosition} from '../locenice/js/solar.js';
-const root=new URL('../locenice/',import.meta.url);
+import {parseGLB,encodeGLB} from '../js/model-io.js';
+import {solarPosition} from '../js/solar.js';
+const root=new URL('../',import.meta.url);
 const bytes=new Uint8Array(fs.readFileSync(new URL('models/dum.glb',root)));
 const {gltf,binary}=parseGLB(bytes);
 const catalog=JSON.parse(fs.readFileSync(new URL('data/catalog.json',root),'utf8'));

locenice2/tools/prepare_export.py

@@ -102,7 +102,7 @@ def rebind(source,edited,output,metadata=None):
 if __name__=='__main__':
     parser=argparse.ArgumentParser(description=__doc__)
     parser.add_argument('edited',type=Path);parser.add_argument('--out',type=Path,default=Path('prepared'))
-    parser.add_argument('--source',type=Path,default=ROOT/'locenice'/'models'/'dum.glb')
+    parser.add_argument('--source',type=Path,default=ROOT/'models'/'dum.glb')
     args=parser.parse_args()
     print(rebind(args.source,args.edited,args.out))
     print('Back up the website first. Replace models/dum.glb AND data/scene.json together.')

locenice2/tools/vendor_three.py

@@ -1,12 +1,12 @@
 """Optional: download pinned Three.js r180 locally, on a computer with internet.
 python tools/vendor_three.py
-Then upload the generated locenice/vendor folder AND data/app-config.json.
+Then upload the generated locenice2/vendor folder AND data/app-config.json.
 Does not upload anything. No credentials or server-side installer required.
 """
 from pathlib import Path
 from urllib.request import Request, urlopen
 import json, re, hashlib
-ROOT=Path(__file__).resolve().parent.parent/'locenice'
+ROOT=Path(__file__).resolve().parent.parent
 BASE='https://raw.githubusercontent.com/mrdoob/three.js/r180/'
 VENDOR=ROOT/'vendor'/'three-r180'
 seen=set()