CHUNK STUFF

tools/asset/dmf/__init__.py

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+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT

tools/asset/dmf/__main__.py

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+# Copyright (c) 2026 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+"""
+Writes DMF (Dusk Mesh Format) files.
+
+DMF format:
+  Bytes 0-3:  DMF\x00 (magic)
+  Bytes 4-7:  uint32_t version = 1 (little-endian)
+  Bytes 8-11: uint32_t vertCount (little-endian)
+  Bytes 12+:  meshvertex_t vertices[vertCount]
+              Each vertex is 20 bytes: uv[2] + pos[3] (5 floats, LE)
+
+Usage:
+  python3 -m tools.asset.dmf <output.dmf> <vertices.bin>
+  Reads raw vertex bytes from vertices.bin and writes a DMF file.
+"""
+
+import struct
+import sys
+import os
+
+MAGIC = b'DMF\x00'
+VERSION = 1
+VERTEX_SIZE = 20
+
+
+def write_dmf(path, vertex_bytes):
+    if len(vertex_bytes) % VERTEX_SIZE != 0:
+        raise ValueError(
+            f"Vertex data size {len(vertex_bytes)} is not a "
+            f"multiple of {VERTEX_SIZE}"
+        )
+    vert_count = len(vertex_bytes) // VERTEX_SIZE
+    buf = bytearray()
+    buf += MAGIC
+    buf += struct.pack('<I', VERSION)
+    buf += struct.pack('<I', vert_count)
+    buf += vertex_bytes
+    with open(path, 'wb') as f:
+        f.write(buf)
+    print(
+        f'Wrote {path}: {vert_count} vertices, {len(buf)} bytes'
+    )
+    return vert_count
+
+
+def main():
+    args = sys.argv[1:]
+    if len(args) != 2:
+        print(
+            "Usage: python3 -m tools.asset.dmf "
+            "<output.dmf> <vertices.bin>"
+        )
+        sys.exit(1)
+
+    dst = args[0]
+    src = args[1]
+
+    with open(src, 'rb') as f:
+        vertex_bytes = f.read()
+
+    write_dmf(dst, vertex_bytes)
+
+
+if __name__ == '__main__':
+    main()