// Mesh
public static Mesh GenerateMesh(List <Node> nodes, Vector3 position, out Material[] _materials)
{
//List<CombineInstance[]>
List <int> materialsID = new List <int>();
//CombineInstance[] combine = new CombineInstance[nodes.Count];
Dictionary <int, List <CombineInstance> > combine = new Dictionary <int, List <CombineInstance> >();
// Material
for (int i = 0; i < nodes.Count; i++)
{
// Mesh
Mesh nodeMesh = nodes[i].GenerateMesh();
int subMeshIndex;
if (materialsID.Contains(nodes[i].terrainId))
{
subMeshIndex = materialsID.IndexOf(nodes[i].terrainId);
}
else
{
materialsID.Add(nodes[i].terrainId);
subMeshIndex = materialsID.IndexOf(nodes[i].terrainId);
}
List <CombineInstance> ciList;
if (!combine.TryGetValue(nodes[i].terrainId, out ciList))
{
ciList = new List <CombineInstance>();
combine.Add(nodes[i].terrainId, ciList);
}
CombineInstance ci = new CombineInstance();
ci.mesh = nodeMesh;
ci.transform = Matrix4x4.TRS(position + nodes[i].position, Quaternion.identity, Vector3.one);
ciList.Add(ci);
/*
* combine[i].mesh = nodeMesh;
* combine[i].subMeshIndex = subMeshIndex;
* combine[i].transform = Matrix4x4.TRS(position + nodes[i].position, Quaternion.identity, Vector3.one);
*/
}
// Prepare submeshes
CombineInstance[] finalCombine = new CombineInstance[materialsID.Count];
for (int i = 0; i < materialsID.Count; i++)
{
List <CombineInstance> ciList;
if (combine.TryGetValue(materialsID[i], out ciList))
{
Mesh subMesh = new Mesh();
subMesh.CombineMeshes(ciList.ToArray(), true);
finalCombine[i].mesh = subMesh;
finalCombine[i].transform = Matrix4x4.TRS(Vector3.zero, Quaternion.identity, Vector3.one);
}
}
// Merge meshes
Mesh output = new Mesh();
output.subMeshCount = materialsID.Count;
output.CombineMeshes(finalCombine, false);
//output.CombineMeshes(combine.TryGetValue(, true);
Material[] materials = new Material[materialsID.Count];
for (int i = 0; i < materials.Length; i++)
{
materials[i] = TerrainHolder.GetTerrainFromId(materialsID[i]).material;
}
_materials = materials;
return(output);
}
public Mesh GenerateMesh()
{
if (terrainId == 0)
{
return(null);
}
// Retrieve terrain
TerrainHolder.Terrain terrain = TerrainHolder.GetTerrainFromId(terrainId);
if (terrain == null)
{
return(null);
}
List <CombineInstance> meshCombiner = new List <CombineInstance>();
CombineInstance tempCombiner;
// Top
if (configuration[1, 1])
{
// Bottom left
#region Bottom left
Matrix4x4 transformMatrix = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(-90, 180, 0), Vector3.one);
// Angle
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConvexUnder;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
#endregion
// Bottom right
#region Bottom right
transformMatrix = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(-90, 90, 0), Vector3.one);
// Angle
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConvexUnder;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
#endregion
// Top left
#region Top left
transformMatrix = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(-90, -90, 0), Vector3.one);
// Angle
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConvexUnder;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
#endregion
// Top right
#region Top left
transformMatrix = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(-90, 0, 0), Vector3.one);
// Angle
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConvexUnder;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
#endregion
}
else
{
// Bottom left
#region Bottom left
Matrix4x4 transformMatrix = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(-90, 180, 0), Vector3.one);
if (configuration[0, 1])
{
if (configuration[1, 0])
{
if (configuration[0, 0])
{
// Fill
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.fill;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
else
{
// Angle concave
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConcave;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
else
{
// Line B
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.lineB;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
else
{
if (configuration[1, 0])
{
// Line A
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.lineA;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
else
{
// Angle convex
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConvex;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
#endregion
// Bottom right
#region Bottom right
transformMatrix = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(-90, 90, 0), Vector3.one);
if (configuration[1, 0])
{
if (configuration[2, 1])
{
if (configuration[2, 0])
{
// Fill
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.fill;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
else
{
// Angle concave
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConcave;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
else
{
// Line B
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.lineB;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
else
{
if (configuration[2, 1])
{
// Line A
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.lineA;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
else
{
// Angle convex
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConvex;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
#endregion
// Top left
#region Top left
transformMatrix = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(-90, -90, 0), Vector3.one);
if (configuration[1, 2])
{
if (configuration[0, 1])
{
if (configuration[0, 2])
{
// Fill
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.fill;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
else
{
// Angle concave
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConcave;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
else
{
// Line B
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.lineB;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
else
{
if (configuration[0, 1])
{
// Line A
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.lineA;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
else
{
// Angle convex
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConvex;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
#endregion
// Top right
#region Top left
transformMatrix = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(-90, 0, 0), Vector3.one);
if (configuration[2, 1])
{
if (configuration[1, 2])
{
if (configuration[2, 2])
{
// Fill
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.fill;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
else
{
// Angle concave
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConcave;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
else
{
// Line B
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.lineB;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
else
{
if (configuration[1, 2])
{
// Line A
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.lineA;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
else
{
// Angle convex
tempCombiner = new CombineInstance();
tempCombiner.mesh = terrain.angleConvex;
tempCombiner.transform = transformMatrix;
meshCombiner.Add(tempCombiner);
}
}
#endregion
}
Mesh output = new Mesh();
output.CombineMeshes(meshCombiner.ToArray());
return(output);
}