add relative mouse handling in mouse.asm

[retroray] / src / app.h

diff --git a/src/app.h b/src/app.h
index f6aa490..d09be0b 100644 (file)
--- a/src/app.h
+++ b/src/app.h
@@ -113,4 +113,7 @@ void app_resize(int x, int y);
 void app_fullscreen(int fs);
 void app_vsync(int vsync);
 
+/* defined in scr_mod.c for convenience */
+void primray(cgm_ray *ray, int x, int y);
+
 #endif /* APP_H_ */