1 files changed, 5 insertions, 0 deletions
diff --git a/src/i_timer.h b/src/i_timer.h
index d90094c8..56810468 100644
--- a/src/i_timer.h
+++ b/src/i_timer.h
@@ -28,6 +28,8 @@
 #ifndef __I_TIMER__
 #define __I_TIMER__
 
+#define TICRATE 35
+
 // Called by D_DoomLoop,
 // returns current time in tics.
 int I_GetTime (void);
@@ -41,5 +43,8 @@ void I_Sleep(int ms);
 // Initialize timer
 void I_InitTimer(void);
 
+// Wait for vertical retrace or pause a bit.
+void I_WaitVBL(int count);
+
 #endif