feat(simulation): add Worker AI polygon runtime and terrain navigation

2026-09-25 16:40:45 +03:00
parent a7c64e009d
commit f01bd39037
88 changed files with 9918 additions and 108 deletions
@@ -0,0 +1,86 @@
+"""Archive full-resolution chunks from an authorized public streamed-SOG scene."""
+
+import argparse
+import gzip
+import hashlib
+import json
+import re
+import subprocess
+import sys
+import urllib.request
+from pathlib import Path
+from urllib.parse import urljoin
+
+parser = argparse.ArgumentParser()
+parser.add_argument("--metadata-url", required=True)
+parser.add_argument("--output", type=Path, required=True)
+parser.add_argument("--author", required=True)
+parser.add_argument("--license", required=True)
+parser.add_argument("--source-url", required=True)
+args = parser.parse_args()
+if not args.metadata_url.startswith("https://") or not args.metadata_url.endswith("/lod-meta.json"):
+    parser.error("Use an observed public HTTPS lod-meta.json URL")
+args.output.mkdir(parents=True, exist_ok=False)
+with urllib.request.urlopen(args.metadata_url, timeout=30) as response:
+    raw = response.read(1024**2 + 1)
+if len(raw) > 1024**2:
+    raise ValueError("LOD manifest too large")
+if raw[:2] == b"\x1f\x8b":
+    raw = gzip.decompress(raw)
+if len(raw) > 1024**2:
+    raise ValueError("LOD manifest too large")
+meta = json.loads(raw)
+if meta["version"] != 1 or not 1 <= meta["counts"][0] <= 20_000_000:
+    raise ValueError("Unsupported scene size or LOD version")
+indices = set()
+
+
+def visit(node):
+    if "0" in node.get("lods", {}):
+        indices.add(node["lods"]["0"]["file"])
+    for child in node.get("children", []):
+        visit(child)
+
+
+visit(meta["tree"])
+if not 1 <= len(indices) <= 100:
+    raise ValueError("Unexpected full-resolution chunk count")
+(args.output / "lod-meta.json").write_bytes(raw)
+for index in sorted(indices):
+    name = meta["filenames"][index]
+    if not re.fullmatch(r"[a-zA-Z0-9_-]+/meta\.json", name):
+        raise ValueError("Unexpected chunk reference")
+    command = [
+        sys.executable,
+        str(Path(__file__).with_name("fetch_sog.py")),
+        "--metadata-url",
+        urljoin(args.metadata_url, name),
+        "--output",
+        str(args.output / Path(name).parent),
+        "--author",
+        args.author,
+        "--license",
+        args.license,
+        "--source-url",
+        args.source_url,
+    ]
+    subprocess.run(command, check=True)
+manifest = {
+    "source_url": args.source_url,
+    "metadata_url": args.metadata_url,
+    "author": args.author,
+    "license": args.license,
+    "lod": 0,
+    "splat_count": meta["counts"][0],
+    "files": [
+        {
+            "path": p.relative_to(args.output).as_posix(),
+            "sha256": hashlib.sha256(p.read_bytes()).hexdigest(),
+            "byte_length": p.stat().st_size,
+        }
+        for p in sorted(args.output.rglob("*"))
+        if p.is_file()
+    ],
+}
+(args.output / "source-manifest.json").write_text(json.dumps(manifest, indent=2))
+print(json.dumps({"count": meta["counts"][0], "chunks": len(indices)}))