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Diffstat (limited to 'src/newgrf_callbacks.h')
| -rw-r--r-- | src/newgrf_callbacks.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/newgrf_callbacks.h b/src/newgrf_callbacks.h index 33f005c2b..59fd6da60 100644 --- a/src/newgrf_callbacks.h +++ b/src/newgrf_callbacks.h @@ -15,6 +15,9 @@ * Names are formatted as CBID_<CLASS>_<CALLBACK> */ enum CallbackID { + /** Set when using the callback resolve system, but not to resolve a callback. */ + CBID_NO_CALLBACK = 0x00, + /** Set when calling a randomizing trigger (almost undocumented). */ CBID_RANDOM_TRIGGER = 0x01, |