void AddVoxelDataToChunk(Vector3 pos)
{
for (int faceIdx = 0; faceIdx < 6; faceIdx++)
{
// if the current voxel has no solid neighboor in the current faceIdx direction then draw it
// else, it is being hidden and we do not need to draw it
if (!IsVoxelFaceHidden(pos, faceIdx))
{
// add vertex data
vertices.Add(pos + VoxelData.voxelVerts[VoxelData.voxelTris[faceIdx, 0]]);
vertices.Add(pos + VoxelData.voxelVerts[VoxelData.voxelTris[faceIdx, 1]]);
vertices.Add(pos + VoxelData.voxelVerts[VoxelData.voxelTris[faceIdx, 2]]);
vertices.Add(pos + VoxelData.voxelVerts[VoxelData.voxelTris[faceIdx, 3]]);
// add texture map data
Blocks.BlockType blockType = voxelMap[(int)pos.x, (int)pos.y, (int)pos.z];
AddTexture(Blocks.blockTypes[blockType].GetTextureId(faceIdx));
// add triangles
triangles.Add(vertexIndex);
triangles.Add(vertexIndex + 1);
triangles.Add(vertexIndex + 2);
triangles.Add(vertexIndex + 2);
triangles.Add(vertexIndex + 1);
triangles.Add(vertexIndex + 3);
vertexIndex += 4;
}
}
}
// World generation algorithm
public Blocks.BlockType GetVoxel(Vector3 pos)
{
int yPos = Mathf.FloorToInt(pos.y);
/* IMMUTABLE PASS */
// If out of world, always return air
if (!IsVoxelInWorld(pos))
{
return(Blocks.BlockType.AIR);
}
// Bottom is always bedrock
if (yPos == 0)
{
return(Blocks.BlockType.BEDROCK);
}
/* BASIC TERRAIN PASS */
int terrainHeight = Mathf.FloorToInt(biome.terrainHeight * Noise.Get2DPerlin(new Vector2(pos.x, pos.z), 0, biome.terrainScale)) + biome.solidGroundHeight;
Blocks.BlockType blockType = Blocks.BlockType.AIR;
if (yPos == terrainHeight)
{
blockType = Blocks.BlockType.GRASS;
}
else if (yPos < terrainHeight && yPos > terrainHeight - 4)
{
blockType = Blocks.BlockType.DIRT;
}
else if (yPos > terrainHeight)
{
return(Blocks.BlockType.AIR);
}
else
{
blockType = Blocks.BlockType.STONE;
}
/* SECOND PASS */
if (blockType == Blocks.BlockType.STONE)
{
foreach (Lode lode in biome.lodes)
{
if (yPos > lode.minHeight && yPos < lode.maxHeight)
{
if (Noise.Get3DPerlin(pos, lode.noiseOffset, lode.scale, lode.threshold))
{
blockType = lode.blockType;
}
}
}
}
return(blockType);
}
/// <summary>
/// Gets the BlockInfo associated with the specified block type.
/// </summary>
public static BlockInfo GetInfo(BlockType type)
{
return(Blocks[(ushort)type]);
}
private static void AddSingle(BlockType type, uint health, uint mass, BlockSides connectSides)
{
Blocks[(ushort)type] = new SingleBlockInfo(type, health, mass, Resources.Load("Blocks/" + type) as GameObject,
connectSides);
}