private void LoadAndRenderChunks()
{
if (_buildList.Count != 0)
{
for (int i = 0; i < _buildList.Count && i < 8; i++)
{
BuildChunk(_buildList[0]);
_buildList.RemoveAt(0);
}
//If chunks were built return early
return;
}
if (_updateList.Count != 0)
{
WixelChunk chunk = World.GetChunk(_updateList[0].x, _updateList[0].y, _updateList[0].z);
if (chunk != null)
{
chunk.PerformUpdates = true;
}
_updateList.RemoveAt(0);
}
}
public void CreateChunk(int x, int y, int z)
{
WorldPosition worldPos = new WorldPosition(x, y, z);
//Instantiate the chunk at the coordinates using the chunk prefab
GameObject newChunkObject = Instantiate(chunkPrefab, new Vector3(x, y, z), Quaternion.Euler(Vector3.zero)) as GameObject;
WixelChunk newChunk = newChunkObject.GetComponent <WixelChunk>();
newChunk.WorldPosition = worldPos;
newChunk.World = this;
// Parent all chunks to the world.
newChunkObject.transform.SetParent(transform);
//Add it to the chunks dictionary with the position as the key
chunks.Add(worldPos, newChunk);
//var terrainGen = new WixelTerrainGenerator(WixelRepository);
var terrainGen = new DefaultChunkGenerator(WixelRepository);
newChunk = terrainGen.GenerateChunk(newChunk);
newChunk.SetBlocksUnmodified();
WixelRepository.LoadChunk(newChunk);
}
protected virtual void OnBeforeGenerateChunk(WixelChunk chunk)
{
if (!_runMetrics)
{
return;
}
_startGenerateTime = Time.time;
}
/// <summary>
/// If this criteria's condition is true, perform the associated
/// action.
/// </summary>
/// <param name="x">X chunk coordinate</param>
/// <param name="y">Y chunk coordinate</param>
/// <param name="z">Z chunk coordinate</param>
/// <param name="chunk">Chunk to operate on</param>
public void CheckCriteria(int x, int y, int z, WixelChunk chunk)
{
if (!Condition(x, y, z, chunk))
{
return;
}
Action(x, y, z, chunk);
}
private void UpdateIfEqual(int value1, int value2, WorldPosition pos)
{
if (value1 == value2)
{
WixelChunk chunk = GetChunk(pos.x, pos.y, pos.z);
if (chunk != null)
{
chunk.PerformUpdates = true;
}
}
}
public void DirtTreeGenerate(int x, int y, int z, WixelChunk chunk)
{
SetBlock(x, y, z, _grass, chunk);
bool isAtDirtHeight = y == _dirtHeight;
bool canMakeTree = GetNoise(x, 0, z, _treeFrequency, 100) < _treeDensity;
if (isAtDirtHeight && canMakeTree)
{
CreateTree(x, y + 1, z, chunk);
}
}
public void DestroyChunk(int x, int y, int z)
{
WixelChunk chunk = null;
if (chunks.TryGetValue(new WorldPosition(x, y, z), out chunk))
{
WixelRepository.SaveChunk(chunk);
Destroy(chunk.gameObject);
chunks.Remove(new WorldPosition(x, y, z));
}
}
private void FindChunksToLoad()
{
//Get the position of this gameobject to generate around
WorldPosition playerPos = new WorldPosition(
Mathf.FloorToInt(transform.position.x / WixelChunk.chunkSize) * WixelChunk.chunkSize,
Mathf.FloorToInt(transform.position.y / WixelChunk.chunkSize) * WixelChunk.chunkSize,
Mathf.FloorToInt(transform.position.z / WixelChunk.chunkSize) * WixelChunk.chunkSize
);
//If there aren't already chunks to generate
if (_updateList.Count == 0)
{
//Cycle through the array of positions
for (int i = 0; i < _chunkPositions.Length; i++)
{
//translate the player position and array position into chunk position
WorldPosition newChunkPos = new WorldPosition(
_chunkPositions[i].x * WixelChunk.chunkSize + playerPos.x,
0,
_chunkPositions[i].z * WixelChunk.chunkSize + playerPos.z
);
//Get the chunk in the defined position
WixelChunk newChunk = World.GetChunk(newChunkPos.x, newChunkPos.y, newChunkPos.z);
//If the chunk already exists and it's already
//rendered or in queue to be rendered continue
if (newChunk != null &&
(newChunk.IsRendered || _updateList.Contains(newChunkPos)))
{
continue;
}
//load a column of chunks in this position
// TODO: Make the y ranges configurable!
for (int y = -4; y < 4; y++)
{
for (int x = newChunkPos.x - WixelChunk.chunkSize; x <= newChunkPos.x + WixelChunk.chunkSize; x += WixelChunk.chunkSize)
{
for (int z = newChunkPos.z - WixelChunk.chunkSize; z <= newChunkPos.z + WixelChunk.chunkSize; z += WixelChunk.chunkSize)
{
_buildList.Add(new WorldPosition(x, y * WixelChunk.chunkSize, z));
}
}
_updateList.Add(new WorldPosition(newChunkPos.x, y * WixelChunk.chunkSize, newChunkPos.z));
}
return;
}
}
}
/// <summary>
/// Sets the given block at the X/Y/Z chunk coordinates for a chunk.
/// </summary>
/// <param name="x">Chunk X coordinate</param>
/// <param name="y">Chunk Y coordinate</param>
/// <param name="z">Chunk Z coordinate</param>
/// <param name="block">Block to set</param>
/// <param name="chunk">Chunk in which to set the block</param>
/// <param name="replaceBlocks">Optional; if true, overwrite any block at the current chunk coordinate.</param>
protected static void SetBlock(int x, int y, int z, Wixel block, WixelChunk chunk, bool replaceBlocks = false)
{
x -= chunk.WorldPosition.x;
y -= chunk.WorldPosition.y;
z -= chunk.WorldPosition.z;
bool isInRange = WixelChunk.InRange(x) && WixelChunk.InRange(y) && WixelChunk.InRange(z);
if (isInRange && (replaceBlocks || chunk.Blocks[x, y, z] == null))
{
chunk.SetBlock(x, y, z, block);
}
}
protected virtual void OnAfterGenerateChunk(WixelChunk chunk)
{
if (!_runMetrics)
{
return;
}
_endGenerateTime = Time.time;
float elapsedTime = _endGenerateTime - _startGenerateTime;
string message = string.Format("Chunk at {0} was generated in {1} seconds", chunk.WorldPosition, elapsedTime);
Debug.Log(message);
}
protected override void OnBeforeGenerateColumn(int x, int z, WixelChunk chunk)
{
_stoneHeight = Mathf.FloorToInt(_stoneBaseHeight);
_stoneHeight += GetNoise(x, 0, z, _stoneMountainFrequency, Mathf.FloorToInt(_stoneMountainHeight));
if (_stoneHeight < _stoneMinHeight)
{
_stoneHeight = Mathf.FloorToInt(_stoneMinHeight);
}
_stoneHeight += GetNoise(x, 0, z, _stoneBaseNoise, Mathf.FloorToInt(_stoneBaseNoiseHeight));
_dirtHeight = _stoneHeight + Mathf.FloorToInt(_dirtBaseHeight);
_dirtHeight += GetNoise(x, 100, z, _dirtNoise, Mathf.FloorToInt(_dirtNoiseHeight));
}
public Wixel GetBlock(RaycastHit hit, bool adjacent = false)
{
WixelChunk chunk = hit.collider.GetComponent <WixelChunk>();
if (chunk == null)
{
return(null);
}
WorldPosition pos = GetBlockPosition(hit, adjacent);
Wixel block = chunk.World.GetBlock(pos.x, pos.y, pos.z);
return(block);
}
public bool SetBlock(RaycastHit hit, Wixel block, bool adjacent = false)
{
WixelChunk chunk = hit.collider.GetComponent <WixelChunk>();
if (chunk == null)
{
return(false);
}
WorldPosition pos = GetBlockPosition(hit, adjacent);
chunk.World.SetBlock(pos.x, pos.y, pos.z, block);
return(true);
}
public WixelChunk GetChunk(int x, int y, int z)
{
WorldPosition pos = new WorldPosition();
float multiple = WixelChunk.chunkSize;
pos.x = Mathf.FloorToInt(x / multiple) * WixelChunk.chunkSize;
pos.y = Mathf.FloorToInt(y / multiple) * WixelChunk.chunkSize;
pos.z = Mathf.FloorToInt(z / multiple) * WixelChunk.chunkSize;
WixelChunk containerChunk = null;
chunks.TryGetValue(pos, out containerChunk);
return(containerChunk);
}
public WixelChunkMeshData BlockData(WixelChunk chunk, int x, int y, int z, WixelChunkMeshData meshData)
{
if (FaceInformation.Count == 0)
{
return(meshData);
}
// Programmer's Note
// -----------------
// int x/y/z is fine due to how this is being used.
Vector3 worldPosition = new Vector3(x, y, z);
meshData.useRenderDataForCol = true;
if (!chunk.GetBlock(x, y + 1, z).IsSolid(WixelDirection.Down))
{
meshData = FaceData(WixelDirection.Up, chunk, worldPosition, meshData);
}
if (!chunk.GetBlock(x, y - 1, z).IsSolid(WixelDirection.Up))
{
meshData = FaceData(WixelDirection.Down, chunk, worldPosition, meshData);
}
if (!chunk.GetBlock(x, y, z + 1).IsSolid(WixelDirection.South))
{
meshData = FaceData(WixelDirection.North, chunk, worldPosition, meshData);
}
if (!chunk.GetBlock(x, y, z - 1).IsSolid(WixelDirection.North))
{
meshData = FaceData(WixelDirection.South, chunk, worldPosition, meshData);
}
if (!chunk.GetBlock(x + 1, y, z).IsSolid(WixelDirection.West))
{
meshData = FaceData(WixelDirection.East, chunk, worldPosition, meshData);
}
if (!chunk.GetBlock(x - 1, y, z).IsSolid(WixelDirection.East))
{
meshData = FaceData(WixelDirection.West, chunk, worldPosition, meshData);
}
return(meshData);
}
/// <summary>
/// Generates wixels into the given chunk.
/// </summary>
/// <param name="chunk">Chunk in which to generate</param>
/// <returns>Chunk with modifications.</returns>
public WixelChunk GenerateChunk(WixelChunk chunk)
{
OnBeforeGenerateChunk(chunk);
// Make the 3 a configurable thing (tree radius + 1?)
for (int x = chunk.WorldPosition.x - 3; x < chunk.WorldPosition.x + WixelChunk.chunkSize + 3; x++)
{
for (int z = chunk.WorldPosition.z - 3; z < chunk.WorldPosition.z + WixelChunk.chunkSize + 3; z++)
{
chunk = GenerateColumn(chunk, x, z);
}
}
OnAfterGenerateChunk(chunk);
return(chunk);
}
public void SetBlock(int x, int y, int z, Wixel block)
{
WixelChunk chunk = GetChunk(x, y, z);
if (chunk == null)
{
return;
}
chunk.SetBlock(x - chunk.WorldPosition.x, y - chunk.WorldPosition.y, z - chunk.WorldPosition.z, block);
chunk.PerformUpdates = true;
UpdateIfEqual(x - chunk.WorldPosition.x, WixelChunk.chunkSize - 1, new WorldPosition(x + 1, y, z));
UpdateIfEqual(y - chunk.WorldPosition.y, 0, new WorldPosition(x, y - 1, z));
UpdateIfEqual(y - chunk.WorldPosition.y, WixelChunk.chunkSize - 1, new WorldPosition(x, y + 1, z));
UpdateIfEqual(z - chunk.WorldPosition.z, 0, new WorldPosition(x, y, z - 1));
UpdateIfEqual(z - chunk.WorldPosition.z, WixelChunk.chunkSize - 1, new WorldPosition(x, y, z + 1));
}
public WixelChunkSaveBuffer(WixelChunk chunk)
{
for (int x = 0; x < WixelChunk.chunkSize; x++)
{
for (int y = 0; y < WixelChunk.chunkSize; y++)
{
for (int z = 0; z < WixelChunk.chunkSize; z++)
{
if (!chunk.Blocks[x, y, z].HasChanged)
{
continue;
}
WorldPosition pos = new WorldPosition(x, y, z);
Blocks.Add(pos, chunk.Blocks[x, y, z]);
}
}
}
}
public Wixel GetBlock(int x, int y, int z)
{
WixelChunk containerChunk = GetChunk(x, y, z);
if (containerChunk != null)
{
Wixel block = containerChunk.GetBlock(
x - containerChunk.WorldPosition.x,
y - containerChunk.WorldPosition.y,
z - containerChunk.WorldPosition.z
);
return(block);
}
else
{
Wixel airWixel = WixelRepository.GetWixelByName("Air");
return(airWixel);
}
}
public void SaveChunk(WixelChunk chunk)
{
WixelChunkSaveBuffer save = new WixelChunkSaveBuffer(chunk);
if (save.Blocks.Count == 0)
{
return;
}
string saveFile = SaveLocation(chunk.World.WorldName);
saveFile += FileName(chunk.WorldPosition);
IFormatter formatter = new BinaryFormatter();
using (Stream stream = new FileStream(saveFile, FileMode.Create, FileAccess.Write, FileShare.None))
{
formatter.Serialize(stream, chunk.Blocks);
stream.Close();
}
}
private WixelChunkMeshData FaceData(WixelDirection direction, WixelChunk chunk, Vector3 worldPosition, WixelChunkMeshData meshData)
{
if (FaceInformation.Count == 0)
{
return(meshData);
}
WixelDirectionInformation faceInfo = GetInformationByDirection(direction);
for (int i = 0; i < faceInfo.Vertices.Count; i++)
{
Vector3 vertexPosition = faceInfo.Vertices[i] * blockScale;
Vector3 actualPosition = vertexPosition + worldPosition;
meshData.AddVertex(actualPosition);
}
meshData.AddQuadTriangles();
meshData.uv.AddRange(FaceUVs(direction));
return(meshData);
}
private void CreateTree(int x, int y, int z, WixelChunk chunk)
{
//create leaves
// TODO - Make tree radius configurable/randomized?
for (int xi = -2; xi <= 2; xi++)
{
for (int yi = 4; yi <= 8; yi++)
{
for (int zi = -2; zi <= 2; zi++)
{
SetBlock(x + xi, y + yi, z + zi, _leaves, chunk, true);
}
}
}
//create trunk
// TODO - Make trunk height configurable/randomized?
for (int yt = 0; yt < 6; yt++)
{
SetBlock(x, y + yt, z, _wood, chunk, true);
}
}
/// <summary>
/// Generates a column of wixels in the given chunk.
/// </summary>
/// <param name="chunk">Chunk in which to generate wixels</param>
/// <param name="x">X chunk coordinate</param>
/// <param name="z">Z chunk coordinate</param>
/// <returns>Chunk with modifications.</returns>
protected WixelChunk GenerateColumn(WixelChunk chunk, int x, int z)
{
OnBeforeGenerateColumn(x, z, chunk);
// TODO: Implement
for (int y = chunk.WorldPosition.y - 8; y < chunk.WorldPosition.y + WixelChunk.chunkSize; y++)
{
OnBeforeGenerateBlock(x, y, z, chunk);
for (int i = 0; i < _generationCriteria.Count; i++)
{
WixelGenerationCriteria current = _generationCriteria[i];
current.CheckCriteria(x, y, z, chunk);
}
OnAfterGenerateBlock(x, y, z, chunk);
}
OnAfterGenerateColumn(x, z, chunk);
return(chunk);
}
public bool LoadChunk(WixelChunk chunk)
{
string saveFile = SaveLocation(chunk.World.WorldName);
saveFile += FileName(chunk.WorldPosition);
if (!File.Exists(saveFile))
{
return(false);
}
IFormatter formatter = new BinaryFormatter();
using (FileStream stream = new FileStream(saveFile, FileMode.Open))
{
try
{
WixelChunkSaveBuffer save = (WixelChunkSaveBuffer)formatter.Deserialize(stream);
foreach (var block in save.Blocks)
{
chunk.Blocks[block.Key.x, block.Key.y, block.Key.z] = block.Value;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
stream.Close();
}
}
return(true);
}
public bool CaveCondition(int x, int y, int z, WixelChunk chunk)
{
return(y <= _stoneHeight && _caveSize < _caveChance);
}
public bool DirtTreeCondition(int x, int y, int z, WixelChunk chunk)
{
return(y <= _dirtHeight && _caveSize < _caveChance);
}
protected virtual void OnAfterGenerateBlock(int x, int y, int z, WixelChunk chunk)
{
}
protected virtual void OnAfterGenerateColumn(int x, int z, WixelChunk chunk)
{
}
protected virtual void OnBeforeGenerateColumn(int x, int z, WixelChunk chunk)
{
}
/// <summary>
/// Default condition for Wixel Chunk Generation.
/// </summary>
/// <returns>True always</returns>
public bool DefaultCondition(int x, int y, int z, WixelChunk chunk)
{
return(true);
}