1 files changed, 62 insertions, 0 deletions
diff --git a/level.dtd b/level.dtd
new file mode 100644
index 0000000..d04db1f
--- /dev/null
+++ b/level.dtd
@@ -0,0 +1,62 @@
+<!ELEMENT level (info, rooms, gates, textures)>
+
+<!ELEMENT info (name, desc, start)>
+<!ELEMENT rooms (room)*>
+<!ELEMENT gates (gate)*>
+<!ELEMENT textures (texture)*>
+
+<!ELEMENT name (#PCDATA)>
+<!ELEMENT desc (#PCDATA)>
+<!ELEMENT start EMPTY>
+<!ATTLIST start
+  x CDATA #REQUIRED
+  y CDATA #REQUIRED
+  z CDATA #REQUIRED
+>
+
+<!ELEMENT room (triangle)*>
+<!ATTLIST room
+  id ID #REQUIRED
+>
+
+<!ELEMENT gate (triangle)*>
+<!ATTLIST gate
+  id    ID    #REQUIRED
+  room1 IDREF #REQUIRED
+  room2 IDREF #REQUIRED
+>
+
+<!ELEMENT triangle (vertex, normal?, texcoords?, vertex, normal?, texcoords?, vertex, normal?, texcoords?)>
+<!ATTLIST triangle
+  visible (true|false) "true"
+  texture IDREF        #IMPLIED
+>
+
+<!ELEMENT texture EMPTY>
+<!ATTLIST texture
+  id   ID    #REQUIRED
+  name CDATA #REQUIRED
+>
+
+<!ELEMENT vertex EMPTY>
+<!ATTLIST vertex
+  x CDATA #REQUIRED
+  y CDATA #REQUIRED
+  z CDATA #REQUIRED
+>
+
+<!ELEMENT normal EMPTY>
+<!ATTLIST normal
+  x CDATA #REQUIRED
+  y CDATA #REQUIRED
+  z CDATA #REQUIRED
+>
+
+<!ELEMENT texcoords EMPTY>
+<!ATTLIST texcoords
+  s CDATA #REQUIRED
+  t CDATA #IMPLIED
+  r CDATA #IMPLIED
+  q CDATA #IMPLIED
+>
+