static void BuildTree()
{
for (int i = 0; i < Selection.gameObjects.Length; ++i)
{
GameObject go = Selection.gameObjects[i];
CSGObject obj = go.GetComponent <CSGObject>();
if (obj)
{
obj.CreateFromMesh();
BspGen gen = new BspGen(BooleanSettings.BspOptimization);
obj.rootNode = gen.GenerateBspTree(obj.faces);
}
}
}
/// <summary>
/// Performs CSG Operation on this Object (Master) with given Slaves.
/// </summary>
/// <param name='inOper'>
/// In oper.
/// </param>
/// <param name='inSlaves'>
/// In slaves.
/// </param>
public void PerformCSG(CsgOperation.ECsgOperation inOper, CSGObject[] inSlaves)
{
//
CreateFromMesh();
// create bsp generator
BspGen gen = new BspGen(BooleanSettings.BspOptimization);
rootNode = gen.GenerateBspTree(faces);
List <Face> savedFaces = new List <Face>();
//
foreach (var slave in inSlaves)
{
// if we have a csg object and we are not our self
// and intersecting
if (slave && slave.gameObject != gameObject && intersect(slave))
{
Debug.Log(slave.gameObject.name);
//
slave.CreateFromMesh();
// ....
BspGen genSlave = new BspGen(BooleanSettings.BspOptimization);
slave.rootNode = genSlave.GenerateBspTree(slave.faces);
CsgVisitor visitor = null;
switch (inOper)
{
case CsgOperation.ECsgOperation.CsgOper_Additive:
visitor = new UnionVisitor();
break;
case CsgOperation.ECsgOperation.CsgOper_Subtractive:
visitor = new SubtractiveVisitor();
break;
case CsgOperation.ECsgOperation.CsgOper_Intersect:
visitor = new IntersectVisitor();
break;
case CsgOperation.ECsgOperation.CsgOper_DeIntersect:
visitor = new DeIntersectVisitor();
break;
default:
visitor = null;
break;
}
CsgOperation oper = new CsgOperation(visitor);
oper.Perform(inOper, this, slave);
// save faces
savedFaces.AddRange(faces);
}
}
// If we want to merge Coplanars after every Operation
if (BooleanSettings.MergeCoplanars)
{
MergeFaces();
}
// for additive or subtracte operation, built faces list from bsp tree
// for others, use faces directly
if (inOper == CsgOperation.ECsgOperation.CsgOper_Additive ||
inOper == CsgOperation.ECsgOperation.CsgOper_Subtractive)
{
// create new face list
List <Face> newFaces = new List <Face>();
// create faces from bsp nodes
BspHelper.FacesFromNodes(rootNode, newFaces);
// copy to face list
faces = newFaces;
}
else
{
// copy saved faces
faces = savedFaces;
}
// copy to unity structure
TransferFacesToMesh();
}
