/// <summary>
/// Called on input release
/// </summary>
protected virtual void OnRelease(PointerActionInfo pointer)
{
if (cameraRig != null)
{
DoReleaseFlick(pointer);
}
}
/// <summary>
/// Called on input press
/// </summary>
protected virtual void OnPress(PointerActionInfo pointer)
{
if (cameraRig != null)
{
DoFlickCatch(pointer);
}
}
/// <summary>
/// Called when we drag
/// </summary>
protected virtual void OnDrag(PointerActionInfo pointer)
{
if (cameraRig != null)
{
DoRightMouseDragPan(pointer);
}
}
/// <summary>
/// Called on input press, for MMB panning
/// </summary>
protected virtual void OnPress(PointerActionInfo pointer)
{
if (cameraRig != null)
{
DoMiddleMousePan(pointer);
}
}
/// <summary>
/// Called when we drag
/// </summary>
protected virtual void OnDrag(PointerActionInfo pointer)
{
// Drag panning for touch input
if (cameraRig != null)
{
DoDragPan(pointer);
}
}
/// <summary>
/// Update a TouchInfo with movement
/// </summary>
/// <param name="touch">The Unity touch object</param>
/// <param name="existingTouch">The object that's tracking Unity's touch</param>
void UpdateMovingFinger(Touch touch, PointerActionInfo existingTouch)
{
float dragDist = touch.deltaPosition.magnitude;
existingTouch.previousPosition = existingTouch.currentPosition;
existingTouch.currentPosition = touch.position;
existingTouch.delta = touch.deltaPosition;
existingTouch.totalMovement += dragDist;
}
/// <summary>
/// "Catch" flicks on press, to stop the panning momentum
/// </summary>
/// <param name="pointer">The press pointer event</param>
protected void DoFlickCatch(PointerActionInfo pointer)
{
var touchInfo = pointer as TouchInfo;
// Stop flicks on touch
if (touchInfo != null)
{
m_FlickDirection = Vector2.zero;
cameraRig.StopTracking();
}
}
/// <summary>
/// Update a TouchInfo that might be holding
/// </summary>
/// <param name="existingTouch"></param>
void UpdateHoldingFinger(PointerActionInfo existingTouch)
{
if (!existingTouch.isHold &&
!existingTouch.isDrag &&
Time.realtimeSinceStartup - existingTouch.startTime >= holdTime)
{
existingTouch.isHold = true;
if (startedHold != null)
{
startedHold(existingTouch);
}
}
}
/// <summary>
/// Pan with middle mouse
/// </summary>
/// <param name="pointer">Pointer with press event</param>
protected void DoMiddleMousePan(PointerActionInfo pointer)
{
var mouseInfo = pointer as MouseButtonInfo;
// Pan to mouse position on MMB
if ((mouseInfo != null) &&
(mouseInfo.mouseButtonId == 2))
{
Vector3 worldPos = cameraRig.GetRaycastWorldPointOnTargetSurface(UnityInput.mousePosition, Vector3.zero);
cameraRig.PanTo(worldPos);
cameraRig.StopTracking();
}
}
/// <summary>
/// Do flicks, on release only
/// </summary>
/// <param name="pointer">The release pointer event</param>
protected void DoReleaseFlick(PointerActionInfo pointer)
{
var touchInfo = pointer as TouchInfo;
if (touchInfo != null && touchInfo.flickVelocity.sqrMagnitude > Mathf.Epsilon)
{
// We have a flick!
// Work out velocity from motion
Vector3 startPoint = cameraRig.GetRaycastWorldPointOnTargetSurface(pointer.currentPosition -
pointer.flickVelocity, Vector3.zero);
Vector3 endPoint = cameraRig.GetRaycastWorldPointOnTargetSurface(pointer.currentPosition, Vector3.zero);
// Work out that movement in units per second
m_FlickDirection = (startPoint - endPoint) / Time.deltaTime;
}
}
/// <summary>
/// Controls the pan with a drag
/// </summary>
protected void DoDragPan(PointerActionInfo pointer)
{
var touchInfo = pointer as TouchInfo;
if (touchInfo != null)
{
Vector3 endPoint = cameraRig.GetRaycastWorldPointOnTargetSurface(pointer.currentPosition, Vector3.zero);
Vector3 startPoint = cameraRig.GetRaycastWorldPointOnTargetSurface(pointer.previousPosition, Vector3.zero);
Debug.DrawLine(startPoint, endPoint, Color.cyan);
Vector3 panAmount = startPoint - endPoint;
// If this is a touch, we divide the pan amount by the number of touches
if (UnityInput.touchCount > 0)
{
panAmount /= UnityInput.touchCount;
}
PanCamera(panAmount);
}
}
/// <summary>
/// Pan with right mouse
/// </summary>
/// <param name="pointer">The drag pointer event</param>
protected void DoRightMouseDragPan(PointerActionInfo pointer)
{
var mouseInfo = pointer as MouseButtonInfo;
if ((mouseInfo != null) &&
(mouseInfo.mouseButtonId == 1))
{
// Calculate zoom ratio
float zoomRatio = GetPanSpeedForZoomLevel();
Vector2 panVector = (mouseInfo.currentPosition - mouseInfo.startPosition);
panVector = (panVector * Time.deltaTime * mouseRmbPanSpeed * zoomRatio) / screenPanThreshold;
cameraRig.PanCamera(panVector);
cameraRig.StopTracking();
}
}