Add content constants

diff --git a/src/to_clt/env.rs b/src/to_clt/env.rs
index 4b035e27088da8f06e4681ec8c0786521cbe66e6..cce76969b73540fb4e54d9f554cfaca2d22ffe70 100644 (file)
--- a/src/to_clt/env.rs
+++ b/src/to_clt/env.rs
@@ -166,6 +166,10 @@ pub enum MapBlockFlag {
 
 pub const ALWAYS_LIT_FROM: u16 = 0xf000;
 
+pub const CONTENT_UNKNOWN: u16 = 125;
+pub const CONTENT_AIR: u16 = 126;
+pub const CONTENT_IGNORE: u16 = 127;
+
 #[mt_derive(to = "clt")]
 pub struct MapBlock {
     pub flags: EnumSet<MapBlockFlag>,