public static void InitViewportControl(DragReceiver drag_)
{
_drag = drag_;
_drag.WhenDragBegin = d => {
_focusOverride = _dragFocusOverride;
_dragInertiaValue = 0;
CameraSystem.WorldPosition = MainCamera.transform.position;
};
_drag.WhenDrag = (d, offset, pos) => {
var targetX = CameraSystem.X + offset.x * UnitPerPixel;
var targetY = CameraSystem.Y + offset.y * UnitPerPixel;
if (PositionLimit != null)
{
(targetX, targetY) = PositionLimit.Limit(targetX, targetY);
}
MainCamera.transform.position = CameraSystem.SystemToWorld(
targetX,
targetY,
CameraSystem.Z);
OnDrag.Invoke(offset, new Vector3(targetX, targetY, CameraSystem.Z));
};
_drag.WhenDragEnd = (d, delta) => {
_focusOverride = false;
_dragInertiaValue = delta.magnitude;
_dragInertiaDelta = delta / _dragInertiaValue;
CameraSystem.WorldPosition = MainCamera.transform.position;
};
_drag.WhenPinch = (d, start, distance) => {
var diff = (distance - start) * zoomSetting.dragFactor * zoomSetting.range * _screenHeightInverse;
TargetZoom(_zoomTarget - diff);
};
ViewportControl(true);
}