Added explanation for Fixed-point usage, + a useful macro

1 files changed, 5 insertions, 2 deletions

diff --git a/src/rumble.c b/src/rumble.c
index 2313d68..2212761 100644
--- a/src/rumble.c
+++ b/src/rumble.c
@@ -2,6 +2,8 @@
 I made this a separate source file because Raylib has some quirks
 regarding Windows compilation. And I also suppose because it has
 some state of its own.
+
+NOTE FOR SPELUNKERS: this requires linking to xinput1_4 AFAIK
 */
 
 #include "controller.h"
@@ -23,16 +25,17 @@ void set_rumble(f32 duration, f32 strength)
     state.wRightMotorSpeed = (unsigned)(strength * 65535.0f);
 
     if (XInputSetState(0, &state) == 0){
-        timer = FIXED_POINT_ONE * duration;
+        timer = FP_TO_FIXED(duration);
     }
 }
 
 void poll_rumble(f32 dt)
 {
+	// Early return
 	if(timer <= 0)
 		return;
 		
-	fx32 delta = FIXED_POINT_ONE * dt;
+	fx32 delta = FP_TO_FIXED(dt);
 	
 	timer -= delta;
 	if(timer <= 0){