Add trigger value adjustment code to the SDL_GameControllerGetAxis co…

…de as well. - fixes Trigger values when polling instead of using event driven
libsdl-org · May 31, 2013 · 21bf91537f4462a458b20334d59f43c3bdec6066 · 21bf915
1 parent 384e3f4
commit 21bf91537f4462a458b20334d59f43c3bdec6066
Unified Split

Showing with 11 additions and 1 deletion.

+11 −1 src/joystick/SDL_gamecontroller.c
diff --git a/src/joystick/SDL_gamecontroller.c b/src/joystick/SDL_gamecontroller.c
@@ -960,7 +960,17 @@ SDL_GameControllerGetAxis(SDL_GameController * gamecontroller, SDL_GameControlle
 
     if (gamecontroller->mapping.axes[axis] >= 0 )
     {
-        return ( SDL_JoystickGetAxis( gamecontroller->joystick, gamecontroller->mapping.axes[axis]) );
+        Sint16 value = ( SDL_JoystickGetAxis( gamecontroller->joystick, gamecontroller->mapping.axes[axis]) );
+        switch (axis)
+        {
+            case SDL_CONTROLLER_AXIS_TRIGGERLEFT:
+            case SDL_CONTROLLER_AXIS_TRIGGERRIGHT:
+                /* Shift it to be 0 - 32767. */
+                value = value / 2 + 16384;
+            default:
+                break;
+        }
+        return value;
     }
     else if (gamecontroller->mapping.buttonasaxis[axis] >= 0 )
     {