private void AddTiles()
{
tiles = new DungeonTileUnity[dungeon.SizeX * dungeon.SizeY];
//Create tiles
for (int x = 0; x < dungeon.SizeX; x++)
{
for (int y = 0; y < dungeon.SizeY; y++)
{
DungeonTile tile = dungeon.GetTile(x, y);
DungeonTileUnity tileUnity = tilesPool.GetTile();
tileUnity.transform.parent = tilesContainer;
tileUnity.Init(this, new DungeonVector2(x, y), tile);
tiles[x + y * dungeon.SizeX] = tileUnity;
}
}
//Combine tiles
CombineTiles(8);
//Return tiles
for (int i = 0; i < tiles.Length; i++)
{
if (tiles[i])
{
tilesPool.ReturnTile(tiles[i]);
tiles[i] = null;
}
}
}
public void ReturnTile(DungeonTileUnity tile)
{
tile.Clear();
tile.go.SetActive(false);
tile.trans.parent = trans;
pool.Add(tile);
}
private void CombineTiles(int groupSize)
{
for (int gx = 0; gx < dungeon.SizeX; gx += groupSize)
{
for (int gy = 0; gy < dungeon.SizeY; gy += groupSize)
{
GameObject groupGO = new GameObject("Group-" + gx + "-" + gy);
groupGO.transform.parent = combinedTilesContainer;
groupGO.transform.localPosition = Vector3.zero;
groupGO.transform.localRotation = Quaternion.identity;
//Get all the mesh filters in the subgroup
tmpMeshes.Clear();
for (int x = gx; x < gx + groupSize; x++)
{
for (int y = gy; y < gy + groupSize; y++)
{
DungeonTileUnity tile = tiles[x + y * dungeon.SizeY];
if (tile)
{
if (tile.ceiling)
{
tmpMeshes.Add(tile.ceiling.GetComponent <MeshFilter>());
}
if (tile.floor)
{
tmpMeshes.Add(tile.floor.GetComponent <MeshFilter>());
}
if (tile.wallEast)
{
tmpMeshes.Add(tile.wallEast.GetComponent <MeshFilter>());
}
if (tile.wallNorth)
{
tmpMeshes.Add(tile.wallNorth.GetComponent <MeshFilter>());
}
if (tile.wallSouth)
{
tmpMeshes.Add(tile.wallSouth.GetComponent <MeshFilter>());
}
if (tile.wallWest)
{
tmpMeshes.Add(tile.wallWest.GetComponent <MeshFilter>());
}
}
}
}
//Group meshes by material
tmpMeshesByMaterial.Clear();
for (int i = 0; i < tmpMeshes.Count; i++)
{
Material material = tmpMeshes[i].renderer.sharedMaterial;
if (!tmpMeshesByMaterial.ContainsKey(material))
{
tmpMeshesByMaterial[material] = new List <MeshFilter>();
}
tmpMeshesByMaterial[material].Add(tmpMeshes[i]);
}
//Combine meshes by material
foreach (Material material in tmpMeshesByMaterial.Keys)
{
List <MeshFilter> materialMeshes = tmpMeshesByMaterial[material];
CombineInstance[] combine = new CombineInstance[materialMeshes.Count];
for (int i = 0; i < materialMeshes.Count; i++)
{
//Add combine info
combine[i].mesh = materialMeshes[i].sharedMesh;
combine[i].transform = materialMeshes[i].transform.localToWorldMatrix;
}
//Combine mesh
Mesh combinedMesh = new Mesh();
combinedMesh.CombineMeshes(combine);
//Create game object with MesFilter / MeshRenderer to draw the combined mesh
GameObject combinedMeshGO = new GameObject("Combined-" + material.name);
combinedMeshGO.transform.parent = groupGO.transform;
combinedMeshGO.transform.localPosition = Vector3.zero;
combinedMeshGO.transform.localRotation = Quaternion.identity;
MeshFilter combinedMeshFilter = combinedMeshGO.AddComponent <MeshFilter>();
MeshRenderer combinedMeshRenderer = combinedMeshGO.AddComponent <MeshRenderer>();
combinedMeshFilter.sharedMesh = combinedMesh;
combinedMeshRenderer.sharedMaterial = material;
}
}
}
}
