natiny_input_get_touch_count

int natiny_input_get_touch_count(void);

Returns the number of touch identifiers available in the current frame. The count includes touches released during this frame.

Returns

Example

for (int i = 0; i < natiny_input_get_touch_count(); i++) {
    uint32_t touch = natiny_input_get_touch_at(i);
    natiny_render_circle((float)natiny_input_get_touch_x(touch),
                         (float)natiny_input_get_touch_y(touch), 24.0f);
}

Notes

• The count remains fixed for the current frame. A touch that starts during a frame appears in the next frame.
• A released touch remains in the list for its release frame. This preserves a tap that starts and ends between two frames. See natiny_input_get_touch_released.
• Pass each index to natiny_input_get_touch_at. The other touch functions take the returned identifier, not the index.
• Natiny tracks at most 24 touches. Additional touches are ignored until a slot becomes available.
• Touch input is available on Android and in touch-enabled browsers. Other platforms return 0.
• The first active touch is also reported as the left mouse button. Do not process both APIs unless duplicate input is intended.