/// <summary>
/// Loads the terrain from a given folder
/// </summary>
/// <param name="path">the path to the folder containing the files</param>
public void Load(string path)
{
if (!File.Exists(path + "/terrain.dat"))
{
throw new Exception("terrain file not found");
}
saveFile = path;
BinaryReader reader = new BinaryReader(File.Open(path + "/terrain.dat", FileMode.Open));
MarchingCubesChunk.size = reader.ReadInt32();
int chunkCount = reader.ReadInt32();
reader.Close();
reader.Dispose();
MarchingCubesChunk[] ccs = GetComponentsInChildren <MarchingCubesChunk>();
chunks = new List <MarchingCubesChunk>();
for (int i = 0; i < ccs.Length; i++)
{
#if UNITY_EDITOR
DestroyImmediate(ccs[i].gameObject);
#else
Destroy(ccs[i].gameObject);
#endif
}
for (int i = 0; i < chunkCount; i++)
{
reader = new BinaryReader(File.Open(path + "/chunk" + i + ".dat", FileMode.Open));
Vector3Int pos = new Vector3Int(0, 0, 0);
pos.x = reader.ReadInt32();
pos.y = reader.ReadInt32();
pos.z = reader.ReadInt32();
MarchingCubesChunk cc = AddChunk(pos);
for (int x = 0; x < chunks[i].xLength; x++)
{
for (int y = 0; y < chunks[i].yLength; y++)
{
for (int z = 0; z < chunks[i].zLength; z++)
{
chunks[i].values[x, y, z].v = reader.ReadSingle();
chunks[i].values[x, y, z].c = new Color(reader.ReadSingle(), reader.ReadSingle(), reader.ReadSingle());
}
}
}
reader.Close();
reader.Dispose();
}
Generate();
}
/// <summary>
/// Removes a chunk from the terrain
/// </summary>
/// <param name="position">The position of the Chunk to remove in the chunk grid</param>
public void EradicateChunk(Vector3Int position)
{
if (ChunkAvailable(position))
{
MarchingCubesChunk chunk = GetChunk(position);
if (ChunkAvailable(position + new Vector3Int(-1, 0, 0)))
{
GetChunk(position + new Vector3Int(-1, 0, 0)).neighbours[0] = null;
}
if (ChunkAvailable(position + new Vector3Int(1, 0, 0)))
{
GetChunk(position + new Vector3Int(1, 0, 0)).neighbours[1] = null;
}
if (ChunkAvailable(position + new Vector3Int(0, -1, 0)))
{
GetChunk(position + new Vector3Int(0, -1, 0)).neighbours[2] = null;
}
if (ChunkAvailable(position + new Vector3Int(0, 1, 0)))
{
GetChunk(position + new Vector3Int(0, 1, 0)).neighbours[3] = null;
}
if (ChunkAvailable(position + new Vector3Int(0, 0, -1)))
{
GetChunk(position + new Vector3Int(0, 0, -1)).neighbours[4] = null;
}
if (ChunkAvailable(position + new Vector3Int(0, 0, 1)))
{
GetChunk(position + new Vector3Int(0, 0, 1)).neighbours[5] = null;
}
chunks.Remove(chunk);
#if UNITY_EDITOR
DestroyImmediate(chunk.gameObject);
#else
Destroy(chunk.gameObject);
#endif
}
}
private void OnEnable()
{
mcc = (MarchingCubesChunk)target;
//Selection.activeGameObject = ((MarchingCubesChunk)target).transform.parent.gameObject;
}
/// <summary>
/// Adds a chunk to the terrain
/// </summary>
/// <param name="position">the position for the new chunk in the chunk grid</param>
/// <returns>the created chunk or null if no chunk could be created</returns>
public MarchingCubesChunk AddChunk(Vector3Int position)
{
if (!ChunkAvailable(position))
{
GameObject chunk = new GameObject();
chunk.name = "Chunk " + position.x + ":" + position.y + ":" + position.z;
chunk.transform.parent = transform;
chunk.transform.position = new Vector3(position.x * MarchingCubesChunk.size, position.y * MarchingCubesChunk.size, position.z * MarchingCubesChunk.size);
MarchingCubesChunk cc = chunk.AddComponent <MarchingCubesChunk>();
cc.position = position;
chunks.Add(cc);
for (int i = 0; i < chunks.Count; i++)
{
if (chunks[i].position.x == position.x && chunks[i].position.y == position.y)
{
if (chunks[i].position.z == position.z - 1)
{
chunks[i].neighbours[4] = cc;
cc.neighbours[5] = chunks[i];
}
else if (chunks[i].position.z == position.z + 1)
{
chunks[i].neighbours[5] = cc;
cc.neighbours[4] = chunks[i];
}
}
else if (chunks[i].position.x == position.x && chunks[i].position.z == position.z)
{
if (chunks[i].position.y == position.y - 1)
{
chunks[i].neighbours[2] = cc;
cc.neighbours[3] = chunks[i];
}
else if (chunks[i].position.y == position.y + 1)
{
chunks[i].neighbours[3] = cc;
cc.neighbours[2] = chunks[i];
}
}
else if (chunks[i].position.y == position.y && chunks[i].position.z == position.z)
{
if (chunks[i].position.x == position.x - 1)
{
chunks[i].neighbours[0] = cc;
cc.neighbours[1] = chunks[i];
}
else if (chunks[i].position.x == position.x + 1)
{
chunks[i].neighbours[1] = cc;
cc.neighbours[0] = chunks[i];
}
}
}
chunk.GetComponent <MeshFilter>();
MeshRenderer mr = chunk.GetComponent <MeshRenderer>();
mr.sharedMaterial = Resources.Load <Material>("MarchingCubes/Terrain");
cc.values[2, 2, 2].v = 1;
for (int x = 0; x < cc.xLength; x++)
{
for (int y = 0; y < cc.yLength; y++)
{
for (int z = 0; z < cc.zLength; z++)
{
cc.values[x, y, z].c = Color.green;
}
}
}
#if UNITY_EDITOR
EditorUtility.SetDirty(this);
EditorUtility.SetDirty(gameObject);
#endif
if (chunks.Count == 1)
{
Generate();
}
return(cc);
}
return(null);
}
