private void AddBlockFace_left(Vector3 blockMinVertex, TerrainBlockUVs blockUVs)
{
AddFacesForNextFourVertices();
vertices.Add(blockMinVertex + new Vector3(0, 0, 1) * config.BlockSize);
vertices.Add(blockMinVertex + new Vector3(0, 1, 1) * config.BlockSize);
vertices.Add(blockMinVertex + new Vector3(0, 1, 0) * config.BlockSize);
vertices.Add(blockMinVertex + new Vector3(0, 0, 0) * config.BlockSize);
uvs.AddRange(blockUVs.SideUVs);
}
public Mesh BuildMesh(TerrainChunk chunk)
{
chunk.ForEachNonEmptyVisibleBlock(block =>
{
var blockLocalIndex = block.LocalIndex;
var blockMinVertex = new Vector3(
blockLocalIndex.X * config.BlockSize - config.HalfBlockSize,
blockLocalIndex.Y * config.BlockSize - config.HalfBlockSize,
blockLocalIndex.Z * config.BlockSize - config.HalfBlockSize
);
var blockUVs = TerrainBlockUVs.Create(block.BlockType);
if (chunk.IsBlockEmpty(blockLocalIndex.StepUp()))
{
AddBlockFace_up(blockMinVertex, blockUVs);
}
if (chunk.IsBlockEmpty(blockLocalIndex.StepDown()))
{
AddBlockFace_down(blockMinVertex, blockUVs);
}
if (chunk.IsBlockEmpty(blockLocalIndex.StepForward()))
{
AddBlockFace_forward(blockMinVertex, blockUVs);
}
if (chunk.IsBlockEmpty(blockLocalIndex.StepRight()))
{
AddBlockFace_right(blockMinVertex, blockUVs);
}
if (chunk.IsBlockEmpty(blockLocalIndex.StepBack()))
{
AddBlockFace_back(blockMinVertex, blockUVs);
}
if (chunk.IsBlockEmpty(blockLocalIndex.StepLeft()))
{
AddBlockFace_left(blockMinVertex, blockUVs);
}
});
return(BuildMesh());
}
public Mesh BuildBlockMesh(TerrainBlock.Type blockType)
{
var blockMinVertex = new Vector3(
-config.HalfBlockSize,
-config.HalfBlockSize,
-config.HalfBlockSize
);
var blockUVs = TerrainBlockUVs.Create(blockType);
AddBlockFace_up(blockMinVertex, blockUVs);
AddBlockFace_down(blockMinVertex, blockUVs);
AddBlockFace_forward(blockMinVertex, blockUVs);
AddBlockFace_right(blockMinVertex, blockUVs);
AddBlockFace_back(blockMinVertex, blockUVs);
AddBlockFace_left(blockMinVertex, blockUVs);
return(BuildMesh());
}