/// <summary>
/// Sets the chunk neighborhood.
/// </summary>
/// <param name="chunk">Chunk.</param>
private void SetChunkNeighborhood(XTerrainChunk chunk)
{
XTerrainChunk xUp;
XTerrainChunk xDown;
XTerrainChunk zUp;
XTerrainChunk zDown;
LoadedChunks.TryGetValue(new XVec2I(chunk.Position.X + 1, chunk.Position.Z), out xUp);
LoadedChunks.TryGetValue(new XVec2I(chunk.Position.X - 1, chunk.Position.Z), out xDown);
LoadedChunks.TryGetValue(new XVec2I(chunk.Position.X, chunk.Position.Z + 1), out zUp);
LoadedChunks.TryGetValue(new XVec2I(chunk.Position.X, chunk.Position.Z - 1), out zDown);
if (xUp != null)
{
chunk.SetNeighbors(xUp, TerrainNeighbor.XUp);
xUp.SetNeighbors(chunk, TerrainNeighbor.XDown);
}
if (xDown != null)
{
chunk.SetNeighbors(xDown, TerrainNeighbor.XDown);
xDown.SetNeighbors(chunk, TerrainNeighbor.XUp);
}
if (zUp != null)
{
chunk.SetNeighbors(zUp, TerrainNeighbor.ZUp);
zUp.SetNeighbors(chunk, TerrainNeighbor.ZDown);
}
if (zDown != null)
{
chunk.SetNeighbors(zDown, TerrainNeighbor.ZDown);
zDown.SetNeighbors(chunk, TerrainNeighbor.ZUp);
}
}
/// <summary>
/// Update this instance.
/// </summary>
void Update()
{
if (Input.GetMouseButtonDown(0))
{
XTerrainChunk chunk = GetTerrainChunk(Camera.main.ScreenToWorldPoint(Input.mousePosition));
chunk.ReplaceTree();
}
Cache.Update();
}
/// <summary>
/// Gets the height of the terrain.
/// </summary>
/// <returns>The terrain height.</returns>
/// <param name="worldPosition">World position.</param>
public float GetTerrainHeight(Vector3 worldPosition)
{
XVec2I chunkPosition = GetChunkPosition(worldPosition);
XTerrainChunk chunk = Cache.GetGeneratedChunk(chunkPosition);
if (chunkPosition != null)
{
return(chunk.GetTerrainHeight(worldPosition));
}
return(0);
}
/// <summary>
/// Generates the chunk.
/// </summary>
/// <param name="x">The x coordinate.</param>
/// <param name="z">The z coordinate.</param>
private void GenerateChunk(int x, int z)
{
if (Cache.ChunkCanBeAdded(x, z))
{
XNoise noise = null;
if (NoiseType == XNoiseType.NT_NONE)
{
noise = NoiseProvider;
}
else if (NoiseType == XNoiseType.NT_PERLIN)
{
noise = new XNoisePerlin();
if (x > 0)
{
int offset = (noise.bottom - noise.top) * x;
noise.top = noise.top + offset;
noise.bottom = noise.bottom + offset;
}
else
{
int offset = (noise.bottom - noise.top) * x;
noise.top = noise.top + offset;
noise.bottom = noise.bottom + offset;
}
if (z > 0)
{
int offset = (noise.right - noise.left) * z;
noise.left = noise.left + offset;
noise.right = noise.right + offset;
}
else
{
int offset = (noise.right - noise.left) * z;
noise.left = noise.left + offset;
noise.right = noise.right + offset;
}
}
var chunk = new XTerrainChunk(Settings, noise, x, z);
Cache.AddNewChunk(chunk);
}
}
/// <summary>
/// Removes from neighborhood.
/// </summary>
/// <param name="chunk">Chunk.</param>
public void RemoveFromNeighborhood(XTerrainChunk chunk)
{
if (Neighborhood.XDown == chunk)
{
Neighborhood.XDown = null;
}
if (Neighborhood.XUp == chunk)
{
Neighborhood.XUp = null;
}
if (Neighborhood.ZDown == chunk)
{
Neighborhood.ZDown = null;
}
if (Neighborhood.ZUp == chunk)
{
Neighborhood.ZUp = null;
}
}
/// <summary>
/// Sets the neighbors.
/// </summary>
/// <param name="chunk">Chunk.</param>
/// <param name="direction">Direction.</param>
public void SetNeighbors(XTerrainChunk chunk, TerrainNeighbor direction)
{
if (chunk != null)
{
switch (direction)
{
case TerrainNeighbor.XUp:
Neighborhood.XUp = chunk;
break;
case TerrainNeighbor.XDown:
Neighborhood.XDown = chunk;
break;
case TerrainNeighbor.ZUp:
Neighborhood.ZUp = chunk;
break;
case TerrainNeighbor.ZDown:
Neighborhood.ZDown = chunk;
break;
}
}
}
/// <summary>
/// Adds the new chunk.
/// </summary>
/// <param name="chunk">Chunk.</param>
public void AddNewChunk(XTerrainChunk chunk)
{
RequestedChunks.Add(chunk.Position, chunk);
GenerateHeightmapForAvailableChunks();
}
