/// <summary>
/// Apply the dragging momentum.
/// </summary>
void LateUpdate()
{
float delta = UpdateRealTimeDelta();
if (target == null)
{
return;
}
if (mPressed)
{
// Disable the spring movement
SpringPosition sp = target.GetComponent <SpringPosition>();
if (sp != null)
{
sp.enabled = false;
}
mScroll = 0f;
}
else
{
mMomentum += scale * (-mScroll * 0.05f);
mScroll = NGUIMath.SpringLerp(mScroll, 0f, 20f, delta);
if (mMomentum.magnitude > 0.0001f)
{
// Apply the momentum
if (mPanel == null)
{
FindPanel();
}
if (mPanel != null)
{
Vector3 oLocalPos = target.localPosition;
target.position += NGUIMath.SpringDampen(ref mMomentum, 9f, delta);
Vector3 nLocalPos = target.localPosition;
if (scale.x == 0)
{
target.localPosition = new Vector3(oLocalPos.x, nLocalPos.y, nLocalPos.z);
}
else if (scale.y == 0)
{
target.localPosition = new Vector3(nLocalPos.x, oLocalPos.y, nLocalPos.z);
}
if (restrictWithinPanel && mPanel.clipping != UIDrawCall.Clipping.None)
{
mBounds = IgnoreTexture ? NGUIMath.GetBoundsIngnoreTexture(mPanel.cachedTransform, target) : NGUIMath.CalculateRelativeWidgetBounds(mPanel.cachedTransform, target);
if (backTop && (mBounds.size.y < mPanel.clipRange.w) && (mBounds.max.y < mPanel.clipRange.y + mPanel.clipRange.w * 0.5f))
{
if (!mPanel.ConstrainTargetToBounds1Top(target, ref mBounds, false))
{
SpringPosition sp = target.GetComponent <SpringPosition>();
if (sp != null)
{
sp.enabled = false;
}
}
}
else
{
if (!mPanel.ConstrainTargetToBounds(target, ref mBounds, dragEffect == DragEffect.None))
{
SpringPosition sp = target.GetComponent <SpringPosition>();
if (sp != null)
{
sp.enabled = false;
}
}
}
}
}
}
else
{
mScroll = 0f;
}
}
}
