public Vector3 GetNormDirectionCandidateRandomAttachPoint(AttachPointType p_Center, Unit p_Opponent)
{
return(GetNormDirectionCandidateRandomAttachPoint(AttachPoint[(int)p_Center].position, p_Opponent));
}
//Note: Avoid running this query in Update function because calculating Vector3.Distance requires sqr root calculation (expensive)
//Instead, find strategic moments to update nearest pivot (i.e. only once when ToolTip becomes active)
public static Vector3 FindClosestAttachPointToAnchor(Transform anchor, Transform contentParent, Vector3[] localPivotPositions, AttachPointType pivotType)
{
Vector3 nearPivot = Vector3.zero;
Vector3 currentPivot = Vector3.zero;
Vector3 anchorPosition = anchor.position;
float nearDist = Mathf.Infinity;
if (localPivotPositions == null || localPivotPositions.Length < NumPivotLocations)
{
return(nearPivot);
}
switch (pivotType)
{
case AttachPointType.Center:
return(nearPivot);
// Search all pivots
case AttachPointType.Closest:
for (int i = 0; i < localPivotPositions.Length; i++)
{
currentPivot = localPivotPositions[i];
float dist = Vector3.Distance(anchorPosition, contentParent.TransformPoint(currentPivot));
if (dist < nearDist)
{
nearDist = dist;
nearPivot = currentPivot;
}
}
break;
// Search corner pivots
case AttachPointType.ClosestCorner:
for (int i = (int)AttachPointType.BotRightCorner; i < (int)AttachPointType.TopLeftCorner; i++)
{
currentPivot = localPivotPositions[i];
float dist = Vector3.Distance(anchorPosition, contentParent.TransformPoint(currentPivot));
if (dist < nearDist)
{
nearDist = dist;
nearPivot = currentPivot;
}
}
break;
// Search middle pivots
case AttachPointType.ClosestMiddle:
for (int i = (int)AttachPointType.BotMiddle; i < (int)AttachPointType.LeftMiddle; i++)
{
currentPivot = localPivotPositions[i];
float dist = Vector3.Distance(anchorPosition, contentParent.TransformPoint(currentPivot));
if (dist < nearDist)
{
nearDist = dist;
nearPivot = currentPivot;
}
}
break;
default:
// For all other types, just use the array position
// TODO error checking for array size (?)
nearPivot = localPivotPositions[(int)pivotType];
break;
}
return(nearPivot);
}
