public static bool FindFirstWorldIntersection(CSGModel model, Vector3 worldRayStart, Vector3 worldRayEnd, int filterLayerParameter0, int visibleLayers, GameObject[] ignore, GameObject[] filter, out CSGTreeBrushIntersection foundIntersection)
{
foundIntersection = new CSGTreeBrushIntersection();
foundIntersection.surfaceIntersection.distance = float.PositiveInfinity;
if (!model || !model.isActiveAndEnabled)
{
return(false);
}
CSGTreeNode[] ignoreBrushes = null;
HashSet <int> ignoreInstanceIDs = null;
HashSet <int> filterInstanceIDs = null;
if (ignore != null)
{
//var ignoreBrushList = new HashSet<CSGTreeBrush>();
ignoreInstanceIDs = new HashSet <int>();
foreach (var go in ignore)
{
var node = go.GetComponent <CSGNode>();
if (node)
{
//node.GetAllTreeBrushes(ignoreBrushList);
ignoreInstanceIDs.Add(node.GetInstanceID());
}
}/*
* if (ignoreBrushList.Count > 0)
* {
* // TODO: fix this, ignorebrushes doesn't remove the brush completely, but that's not necessarily correct
* // for example: another brush that is not ignored, subtracts from a brush that's ignored (so its insides should be selectable)
* ignoreBrushes = new CSGTreeNode[ignoreBrushList.Count];
* int index = 0;
* foreach(var brush in ignoreBrushList)
* {
* ignoreBrushes[index] = brush;
* index++;
* }
* }*/
}
if (filter != null)
{
filterInstanceIDs = new HashSet <int>();
foreach (var go in filter)
{
var node = go.GetComponent <CSGNode>();
if (node)
{
filterInstanceIDs.Add(node.GetInstanceID());
}
}
}
var tree = model.Node;
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(model.GetInstanceID())))
{
return(false);
}
if (((1 << model.gameObject.layer) & visibleLayers) == 0)
{
return(false);
}
var query = CSGMeshQueryManager.GetMeshQuery(model);
// We only accept RayCasts into this model if it's visible
if (!CSGMeshQueryManager.IsVisible(query))
{
return(false);
}
Vector3 treeRayStart;
Vector3 treeRayEnd;
var transform = model.transform;
if (transform)
{
var worldToLocalMatrix = transform.worldToLocalMatrix;
treeRayStart = worldToLocalMatrix.MultiplyPoint(worldRayStart);
treeRayEnd = worldToLocalMatrix.MultiplyPoint(worldRayEnd);
}
else
{
treeRayStart = worldRayStart;
treeRayEnd = worldRayEnd;
}
var treeIntersections = tree.RayCastMulti(CSGMeshQueryManager.GetMeshQuery(model), treeRayStart, treeRayEnd, filterLayerParameter0, ignoreBrushes);
if (treeIntersections == null)
{
return(false);
}
bool found = false;
for (var i = 0; i < treeIntersections.Length; i++)
{
var intersection = treeIntersections[i];
var brush = intersection.brush;
var instanceID = brush.UserID;
if ((filterInstanceIDs != null && !filterInstanceIDs.Contains(instanceID)))
{
continue;
}
if ((ignoreInstanceIDs != null && ignoreInstanceIDs.Contains(instanceID)))
{
continue;
}
if (intersection.surfaceIntersection.distance < foundIntersection.surfaceIntersection.distance)
{
foundIntersection = intersection;
found = true;
}
}
return(found);
}
