#pragma once

#include "Event.h"
#include "WorldCamera.h"

// The direction the player is currently panning the view has changed
// (REQ-UI-SCROLL). Deliberately level-triggered: the payload is the complete
// current direction, including PanDirection::None when panning stops, rather than
// separate started/stopped events. A receiver that only ever saw edges would have
// to reconstruct the state and would be left panning forever if one edge went
// missing — which is exactly what happens when the widget loses focus mid-pan.
//
// Unlike the state-change events elsewhere in the UI, the receiver does cache this
// payload instead of re-reading the value from somewhere authoritative. That is
// correct here: input has no other source of truth to re-read from, so the
// publisher (InputMapper) is the authority and the payload is the value.
class PanDirectionChangedEvent : public Event
{
public:
    explicit PanDirectionChangedEvent(PanDirection direction) : direction(direction) {}
    const PanDirection direction;
};