private List <IRenderable> CreateMeshes(List <Chunk> chunks)
{
float uvWidth = 2048.0f / 16.0f;
float uvCell = uvWidth / 2048.0f;
float xUv = uvCell * 2.0f;
float yUv = uvCell * 15.0f;
Vector2 uvCoordinate = new Vector2(xUv, yUv);
Vector2 uvOffset = new Vector2(uvCell, uvCell);
var blockPos = new Vector3();
var list = new List <IRenderable>();
foreach (var chunk in chunks)
{
for (uint x = 0; x < Chunk.Width; ++x)
{
for (uint y = 0; y < Chunk.Height; ++y)
{
for (uint z = 0; z < Chunk.Depth; ++z)
{
blockPos.X = x;
blockPos.Y = y;
blockPos.Z = z;
var block = chunk.At(x, y, z);
if (block.BlockType != BlockType.Air)
{
foreach (Side side in Sides.All)
{
// Chunk borders TBD
if (Chunk.IsChunkBorder(x, y, z))
{
_pool.AddFace(Quads.QuadFor(side), block.World, uvCoordinate, uvOffset);
continue;
}
// Check block next to current block in direction of the side.
// - If neighbor exists and not air block, don't draw
var dir = Directions.DirectionFor(side);
if (chunk.At(blockPos + dir).BlockType == BlockType.Air)
{
_pool.AddFace(Quads.QuadFor(side), block.World, uvCoordinate, uvOffset);
}
}
}
}
}
}
list.Add(new ChunkMesh(chunk, _pool.ToMesh(_program)));
_pool.Reset();
}
return(list);
}