Start resource files

TODO.txt

@@ -1,10 +1,27 @@
 =========== GENERAL ==============
 
+- prevent time overflow! stop incrementing level frame once it's at maximum
 - asset system:
   - assets are to be loaded from one BIG string consisting of substrings, each
     substring adds a map, replay, setting etc.
   - part of the substring will be hardcoded (default maps)
   - optionally a frontend can extend this from a file
+  - details:
+    - strings separated by '#'
+    - each string has format:
+      - magic number:
+        - map: LM
+        - replay: LR
+        - record time: LT
+      - name
+      - ';'
+      - string content
+        - map: see map.h
+        - replay:
+          - map name
+          - map hash
+          - data: frame, input state
+        - record time: decimal time in ms
 - make the racing module usable by itself, e.g. to allow making tools for
   verifying replays etc., i.e. make the module measure time, count checkpoints
   etc.