[b]Note:[/b] The behavior of this event is affected by the value of [member Input.use_accumulated_input]. When set to [code]true[/code] (default), mouse/pen motion events received from the OS will be merged to emit an accumulated event only once per frame rendered at most. When set to [code]false[/code], the events will be emitted as received, which means that they can be emitted multiple times per frame rendered, allowing for precise input reporting at the expense of CPU usage.
[b]Note:[/b] If you use InputEventMouseMotion to draw lines, consider implementing [url=https://en.wikipedia.org/wiki/Bresenham%27s_line_algorithm]Bresenham's line algorithm[/url] as well to avoid visible gaps in lines if the user is moving the mouse quickly.
The mouse position relative to the previous position (position at the last frame).
[b]Note:[/b] Since [InputEventMouseMotion] is only emitted when the mouse moves, the last event won't have a relative position of [code]Vector2(0, 0)[/code] when the user stops moving the mouse.
Represents the angles of tilt of the pen. Positive X-coordinate value indicates a tilt to the right. Positive Y-coordinate value indicates a tilt toward the user. Ranges from [code]-1.0[/code] to [code]1.0[/code] for both axes.
