multiplication optimization

1 year ago · 058c9d2449
parent 2688d5c281
commit 058c9d2449
1 changed files with 3 additions and 3 deletions
--- a/lib/touch_controls/src/touch_joystick.cpp
+++ b/lib/touch_controls/src/touch_joystick.cpp
@ -109,10 +109,10 @@ TouchJoystick::TouchState TouchJoystick::touch(int8_t fid, int32_t tx, int32_t t
            }
            else // in bounds outside of outer dead zone
            {
-                float len = sqrt(t2);
+                float factor = dead_zone_outer / sqrt(t2) * pos2usb;
-                x = (tx * dead_zone_outer / len) * pos2usb + usb_x;
+                x = tx * factor + usb_x;
-                y = (ty * dead_zone_outer / len) * pos2usb + usb_y;
+                y = ty * factor + usb_y;
            }
            if (invert_x) x = 2 * usb_x - x;