natiny_input_get_touch_x_speed

C
int natiny_input_get_touch_x_speed(uint32_t touch);

Returns the touch movement along the x axis since the previous frame, in the window's current drawing units.

Parameters

Name Type Description
touch uint32_t Touch identifier from natiny_input_get_touch_at

Returns

Type Description
int Signed horizontal movement in drawing units; positive to the right, negative to the left, or 0 for a new or invalid touch

Example

C
for (int index = 0; index < natiny_input_get_touch_count(); index++) {
    uint32_t touch = natiny_input_get_touch_at(index);
    if (natiny_input_get_touch_down(touch))
        camera_x -= (float)natiny_input_get_touch_x_speed(touch);
}

Notes

  • The value uses the window's scale mode, not physical pixels. It uses the same units as natiny_input_get_mouse_x_speed.
  • The value remains fixed for the current frame. Movement during a frame is visible in the next frame.
  • A new touch returns 0 because no previous touch position exists.
  • See also natiny_input_get_touch_x.
  • Touch input is available on Android and in touch-enabled browsers.