public void GetCube(int x, int y, int z, out Cube cube)
{
//Wrap coords so that the array is a 3d circular queue
x = x & _maskX;
z = z & _maskZ;
cube = Cubes[x, y, z];
}
public void CheckYGetCube(int x, int y, int z, out Cube cube)
{
if (y < 0 || y >= _lenY)
{
cube = Cube.NULL;
return;
}
//Wrap coords so that the array is a 3d circular queue
x = x & _maskX;
z = z & _maskZ;
cube = Cubes[x, y, z];
}
public CubeVertex(ref Vector3 position, ref NormalizedByte4 normal, ref Vector2 texture, ref Cube cube, ref Cube n1, ref Cube n2, ref Cube n3, ref Cube n4)
{
this.VertexPosition = position;
this.Normal = normal;
this.Texture = texture;
this.Red = cube.Red;
this.Green = cube.Green;
this.Blue = cube.Blue;
this.Alpha = (byte)cube.Alpha;
int lr = 0;
int lg = 0;
int lb = 0;
if (n1.IsTransparent)
{
lr = n1.Red;
lg = n1.Green;
lb = n1.Blue;
}
if (n2.IsTransparent)
{
lr = lr + n2.Red;
lg = lg + n2.Green;
lb = lb + n2.Blue;
}
if (n3.IsTransparent)
{
lr = lr + n3.Red;
lg = lg + n3.Green;
lb = lb + n3.Blue;
}
if (n4.IsTransparent)
{
lr = lr + n4.Red;
lg = lg + n4.Green;
lb = lb + n4.Blue;
}
this.LocalRed = (byte)(lr >> 2);
this.LocalGreen = (byte)(lg >> 2);
this.LocalBlue = (byte)(lb >> 2);
byte light = (byte)((n1.LightLevels + n2.LightLevels + n3.LightLevels + n4.LightLevels) >> 2);
this.LocalLight = (byte)((light & 240) >> 4);
this.SkyLight = (short)(light & 15);
}
public void GetCubeNeighbors(int x, int y, int z, out Cube curr, out Cube posX, out Cube negX, out Cube posY, out Cube negY, out Cube posZ, out Cube negZ)
{
x = x & _maskX;
z = z & _maskZ;
curr = Cubes[x, y, z];
int reg = (x + 1) & _maskX;
posX = Cubes[reg, y, z];
reg = (x - 1) & _maskX;
negX = Cubes[reg, y, z];
reg = y + 1;
posY = (reg < _lenY) ? Cubes[x, reg, z] : Cube.NULL;
reg = y - 1;
negY = (reg >= 0) ? Cubes[x, reg, z] : Cube.NULL;
reg = (z + 1) & _maskZ;
posZ = Cubes[x, y, reg];
reg = (z - 1) & _maskZ;
negZ = Cubes[x, y, reg];
}
public void LoadChunks(Object threadContext)
{
Chunk curr;
Cube air = new Cube(CubeMaterial.None,0);
Cube cube;
float noisevalue;
int worldX;
int worldZ;
int height;
int mountain;
int finalHeight;
float[,] heightmap = new float[Chunk.WIDTH, Chunk.WIDTH];
float[,] mountains = new float[Chunk.WIDTH, Chunk.WIDTH];
while (_running)
{
lock (_loadQueue.SyncRoot)
{
Monitor.Wait(_loadQueue.SyncRoot, 500);
}
while (_loadQueue.TryTake(out curr))
{
if (curr.State == ChunkState.Unloading) continue;
if (!curr.LoadFromDisk())
{
//Generate using terrain generation
//Get the heightmap
noise.FillMap2D(heightmap, curr.Coords.X, curr.Coords.Z, octaves: 2, startFrequency: .5f, startAmplitude: 5);
noise.FillMap2D(mountains, curr.Coords.X, curr.Coords.Z, octaves: 4, startFrequency: .05f, startAmplitude: 100);
for (int x = 0; x < Chunk.WIDTH; x++)
{
worldX = x + curr.Coords.X * Chunk.WIDTH;
for (int z = 0; z < Chunk.WIDTH; z++)
{
worldZ = z + curr.Coords.Z * Chunk.WIDTH;
height = (int)(heightmap[x, z] + Settings.SEA_LEVEL);
mountain = (int)(mountains[x, z] + Settings.SEA_LEVEL);
//Create ground
height = (height <= Chunk.HEIGHT) ? height : Chunk.HEIGHT;
for (int y = 0; y < height; y++)
{
cube = new Cube(CubeMaterial.Stone,0);
CubeStorage.SetMaterialAt(worldX, y, worldZ, ref cube);
}
finalHeight = height;
if (mountain - height > 1)
{
finalHeight = (mountain<=Chunk.HEIGHT)?mountain:Chunk.HEIGHT;
for (int y = height; y < finalHeight; y++)
{
cube = new Cube(CubeMaterial.Dirt,0);
CubeStorage.SetMaterialAt(worldX, y, worldZ, ref cube);
}
}
for (int y = finalHeight; y < Chunk.HEIGHT; y++)
{
cube = new Cube(CubeMaterial.None,0);
CubeStorage.SetMaterialAt(worldX, y, worldZ, ref cube);
}
//Create caves
noisevalue = 0;
for (int y = 0; y < Chunk.HEIGHT; y++)
{
//noisevalue = noise.GetValue3D(worldX, y, worldZ, octaves: 6, startFrequency: .5f, startAmplitude: 2);
if(noisevalue < -0.5f)
{
cube = new Cube(CubeMaterial.None,0);
CubeStorage.SetMaterialAt(worldX, y, worldZ, ref cube);
}
}
}
}
}
curr.ChangeState(this, ChunkState.Loaded);
}
}
}
public void SetMaterialAt(int x, int y, int z, ref Cube cube)
{
//Wrap coords so that the array is a 3d circular queue
x = x & _maskX;
z = z & _maskZ;
Cubes[x, y, z] = cube;
}