/// <summary>
/// recomputes flattening if axis to be flattened has changed.
/// </summary>
protected virtual void UpdateFlattenedAxis()
{
// Find the maximum size of the new bounds
float maxAxisThickness = Mathf.Max(Mathf.Max(targetBoundsLocalScale.x, targetBoundsLocalScale.y), targetBoundsLocalScale.z);
FlattenModeEnum newFlattenedAxis = FlattenModeEnum.DoNotFlatten;
switch (flattenPreference)
{
case FlattenModeEnum.DoNotFlatten:
// Do nothing
break;
case FlattenModeEnum.FlattenAuto:
// Flattening order of preference - z, y, x
if (Mathf.Abs(targetBoundsLocalScale.z / maxAxisThickness) < flattenAxisThreshold)
{
newFlattenedAxis = FlattenModeEnum.FlattenZ;
targetBoundsLocalScale.z = flattenedAxisThickness * maxAxisThickness;
}
else if (Mathf.Abs(targetBoundsLocalScale.y / maxAxisThickness) < flattenAxisThreshold)
{
newFlattenedAxis = FlattenModeEnum.FlattenY;
targetBoundsLocalScale.y = flattenedAxisThickness * maxAxisThickness;
}
else if (Mathf.Abs(targetBoundsLocalScale.x / maxAxisThickness) < flattenAxisThreshold)
{
newFlattenedAxis = FlattenModeEnum.FlattenX;
targetBoundsLocalScale.x = flattenedAxisThickness * maxAxisThickness;
}
break;
case FlattenModeEnum.FlattenX:
newFlattenedAxis = FlattenModeEnum.FlattenX;
targetBoundsLocalScale.x = flattenedAxisThickness * maxAxisThickness;
break;
case FlattenModeEnum.FlattenY:
newFlattenedAxis = FlattenModeEnum.FlattenY;
targetBoundsLocalScale.y = flattenedAxisThickness * maxAxisThickness;
break;
case FlattenModeEnum.FlattenZ:
newFlattenedAxis = FlattenModeEnum.FlattenZ;
targetBoundsLocalScale.z = flattenedAxisThickness * maxAxisThickness;
break;
}
FlattenedAxis = newFlattenedAxis;
}
protected virtual void RefreshTargetBounds()
{
if (target == null)
{
targetBoundsWorldCenter = Vector3.zero;
targetBoundsLocalScale = Vector3.one;
return;
}
// Get the new target bounds
boundsPoints.Clear();
switch (BoundsCalculationMethod)
{
case BoundsCalculationMethodEnum.RendererBounds:
default:
Renderer[] renderers = target.GetComponentsInChildren <Renderer>();
for (int i = 0; i < renderers.Length; ++i)
{
var rendererObj = renderers[i];
if (rendererObj.gameObject.layer == IgnoreLayer)
{
continue;
}
rendererObj.bounds.GetCornerPositionsFromRendererBounds(ref corners);
boundsPoints.AddRange(corners);
}
break;
case BoundsCalculationMethodEnum.MeshFilterBounds:
MeshFilter[] meshFilters = target.GetComponentsInChildren <MeshFilter>();
for (int i = 0; i < meshFilters.Length; i++)
{
var meshFilterObj = meshFilters[i];
if (meshFilterObj.gameObject.layer == IgnoreLayer)
{
continue;
}
Bounds meshBounds = meshFilterObj.sharedMesh.bounds;
meshBounds.GetCornerPositions(meshFilterObj.transform, ref corners);
boundsPoints.AddRange(corners);
}
RectTransform[] rectTransforms = target.GetComponentsInChildren <RectTransform>();
for (int i = 0; i < rectTransforms.Length; i++)
{
rectTransforms[i].GetWorldCorners(rectTransformCorners);
boundsPoints.AddRange(rectTransformCorners);
}
break;
}
if (boundsPoints.Count > 0)
{
// We now have a list of all points in world space
// Translate them all to local space
for (int i = 0; i < boundsPoints.Count; i++)
{
boundsPoints[i] = target.transform.InverseTransformPoint(boundsPoints[i]);
}
// Encapsulate the points with a local bounds
localTargetBounds.center = boundsPoints[0];
localTargetBounds.size = Vector3.zero;
foreach (Vector3 point in boundsPoints)
{
localTargetBounds.Encapsulate(point);
}
}
// Store the world center of the target bb
targetBoundsWorldCenter = target.transform.TransformPoint(localTargetBounds.center);
// Store the local scale of the target bb
targetBoundsLocalScale = localTargetBounds.size;
targetBoundsLocalScale.Scale(target.transform.localScale);
// Find the maximum size of the new bounds
float maxAxisThickness = Mathf.Max(Mathf.Max(targetBoundsLocalScale.x, targetBoundsLocalScale.y), targetBoundsLocalScale.z);
// Now check our flatten behavior
FlattenModeEnum newFlattenedAxis = FlattenModeEnum.DoNotFlatten;
switch (FlattenPreference)
{
case FlattenModeEnum.DoNotFlatten:
// Do nothing
break;
case FlattenModeEnum.FlattenAuto:
// Flattening order of preference - z, y, x
if (Mathf.Abs(targetBoundsLocalScale.z / maxAxisThickness) < FlattenAxisThreshold)
{
newFlattenedAxis = FlattenModeEnum.FlattenZ;
targetBoundsLocalScale.z = FlattenedAxisThickness * maxAxisThickness;
}
else if (Mathf.Abs(targetBoundsLocalScale.y / maxAxisThickness) < FlattenAxisThreshold)
{
newFlattenedAxis = FlattenModeEnum.FlattenY;
targetBoundsLocalScale.y = FlattenedAxisThickness * maxAxisThickness;
}
else if (Mathf.Abs(targetBoundsLocalScale.x / maxAxisThickness) < FlattenAxisThreshold)
{
newFlattenedAxis = FlattenModeEnum.FlattenX;
targetBoundsLocalScale.x = FlattenedAxisThickness * maxAxisThickness;
}
break;
case FlattenModeEnum.FlattenX:
newFlattenedAxis = FlattenModeEnum.FlattenX;
targetBoundsLocalScale.x = FlattenedAxisThickness * maxAxisThickness;
break;
case FlattenModeEnum.FlattenY:
newFlattenedAxis = FlattenModeEnum.FlattenY;
targetBoundsLocalScale.y = FlattenedAxisThickness * maxAxisThickness;
break;
case FlattenModeEnum.FlattenZ:
newFlattenedAxis = FlattenModeEnum.FlattenZ;
targetBoundsLocalScale.z = FlattenedAxisThickness * maxAxisThickness;
break;
}
FlattenedAxis = newFlattenedAxis;
}
