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Overlays: Improve Analog Recentering (#17505)

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- Use closest point on zone perimeter if first touch is outside zone
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neil4 2025-02-01 18:27:18 -06:00 committed by GitHub
parent 089a51f674
commit 05f75b83c1
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1 changed files with 20 additions and 16 deletions
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36
input/input_driver.c
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@ -2371,27 +2371,31 @@ static void input_overlay_get_analog_state(
if (first_touch)
{
unsigned recenter_zone =
unsigned recenter_zone = /* [0,100] */
config_get_ptr()->uints.input_overlay_analog_recenter_zone;
/* Reset analog center */
x_center[b] = desc->x_shift;
y_center[b] = desc->y_shift;
if (recenter_zone != 0)
{
/* Get analog state without adjusting center or saturation */
x_val = (x - desc->x_shift) / desc->range_x;
y_val = (y - desc->y_shift) / desc->range_y;
float touch_dist, w;
/* Recenter if within zone */
if ( (x_val * x_val + y_val * y_val) * 1e4
< (recenter_zone * recenter_zone)
|| recenter_zone >= 100)
{
x_center[b] = x;
y_center[b] = y;
}
x_val = (x - desc->x_shift) / desc->range_x;
y_val = (y - desc->y_shift) / desc->range_y;
touch_dist = sqrt((x_val * x_val + y_val * y_val) * 1e4);
/* Inside zone, recenter to first touch.
* Outside zone, recenter to zone perimeter. */
if (touch_dist <= recenter_zone || recenter_zone >= 100)
w = 0.0f;
else
w = (touch_dist - recenter_zone) / touch_dist;
x_center[b] = x * (1.0f - w) + desc->x_shift * w;
y_center[b] = y * (1.0f - w) + desc->y_shift * w;
}
else
{
x_center[b] = desc->x_shift;
y_center[b] = desc->y_shift;
}
}