private void SetBlockFaces(BlockType blockType, int bx, int by, int bz, BlockType neighbourType, int nx, int ny, int nz, BlockFaceDirection bFace, BlockFaceDirection nFace)
{
if (neighbourType == BlockType.None)
{
// Bordering sky make face visible
if (blockType != BlockType.None)
{
if (blockType == BlockType.Water)
{
_world.AddWaterFace(bx, by, bz, bFace);
}
else
{
_world.AddSolidFace(bx, by, bz, bFace);
}
}
}
else
{
if (neighbourType == BlockType.Water)
{
if (blockType == BlockType.None)
{
if (blockType == BlockType.Water)
{
_world.AddWaterFace(bx, by, bz, bFace);
}
else
{
_world.AddSolidFace(bx, by, bz, bFace);
}
}
else if (blockType == BlockType.Water)
{
// Removed ajoining faces if both blocks are water
_world.RemoveWaterFace(bx, by, bz, bFace);
_world.RemoveWaterFace(nx, ny, nz, nFace);
}
else if (BlockInformation.IsModelBlock(blockType))
{
_world.AddModelFace(bx, by, bz, bFace);
_world.AddWaterFace(nx, ny, nz, nFace);
}
else
{
// Can always see face through water
if (blockType == BlockType.Water)
{
_world.AddWaterFace(bx, by, bz, bFace);
}
else
{
_world.AddSolidFace(bx, by, bz, bFace);
}
_world.RemoveWaterFace(nx, ny, nz, nFace);
}
}
else if (BlockInformation.IsModelBlock(neighbourType))
{
if (blockType == BlockType.None)
{
_world.AddModelFace(nx, ny, nz, nFace);
}
else if (blockType == BlockType.Water)
{
// Can see through water
_world.AddWaterFace(bx, by, bz, bFace);
_world.AddModelFace(nx, ny, nz, nFace);
}
else if (BlockInformation.IsModelBlock(blockType))
{
// Can see through transparent
_world.AddModelFace(bx, by, bz, bFace);
_world.AddModelFace(nx, ny, nz, nFace);
}
else
{
// Can see through transparent and note that neightbour face is occluded
_world.AddSolidFace(bx, by, bz, bFace);
_world.RemoveModelFace(nx, ny, nz, nFace);
}
}
else
{
if (blockType == BlockType.None)
{
_world.AddSolidFace(nx, ny, nz, nFace);
}
else if (blockType == BlockType.Water)
{
// We can see it through water
if (bFace == BlockFaceDirection.YIncreasing)
{
_world.AddWaterFace(bx, by, bz, bFace);
}
else
{
_world.RemoveWaterFace(bx, by, bz, bFace);
}
_world.AddSolidFace(nx, ny, nz, nFace);
}
else if (BlockInformation.IsModelBlock(blockType))
{
// We can see neighbour face and note that block face is occluded
_world.RemoveModelFace(bx, by, bz, bFace);
_world.AddSolidFace(nx, ny, nz, nFace);
}
else
{
// Both faces hidden
_world.RemoveSolidFace(bx, by, bz, bFace);
_world.RemoveSolidFace(nx, ny, nz, nFace);
}
}
}
}
public void BuildVertexBuffers()
{
//_solidVertexList.Clear();
//_modelVertexList.Clear();
//_waterVertexList.Clear();
_solidVertexArray = new VertexPositionTextureShade[_solidFaceCount * 6];
_modelVertexArray = new VertexPositionTextureShade[_modelFaceCount * 6];
_waterVertexArray = new VertexPositionTextureShade[_waterFaceCount * 6];
_solidIndex = 0;
_waterIndex = 0;
_modelIndex = 0;
for (int x = 0; x < WorldSettings.REGIONWIDTH; x++)
{
for (int y = 0; y < WorldSettings.REGIONHEIGHT; y++)
{
for (int z = 0; z < WorldSettings.REGIONLENGTH; z++)
{
BlockType blockType = Blocks[x, y, z];
if (blockType != BlockType.None)
{
byte faceInfo = _faceInfo[x, y, z];
Vector3i position = new Vector3i(_position.x + x, _position.y + y, _position.z + z);
if (blockType == BlockType.Water)
{
BuildBlockVertices(_waterVertexArray, Buffer.Water, blockType, faceInfo, position);
}
else if (BlockInformation.IsModelBlock(blockType))
{
BuildBlockVertices(_modelVertexArray, Buffer.Model, blockType, faceInfo, position);
}
else
{
BuildBlockVertices(_solidVertexArray, Buffer.Solid, blockType, faceInfo, position);
}
}
}
}
}
if (_waterVertexArray.Length > 0)
{
_waterVertexBuffer = new VertexBuffer(_world.Game.GraphicsDevice, typeof(VertexPositionTextureShade), _waterVertexArray.Length, BufferUsage.WriteOnly);
_waterVertexBuffer.SetData(_waterVertexArray);
}
else
{
_waterVertexBuffer = null;
}
if (_modelVertexArray.Length > 0)
{
_modelVertexBuffer = new VertexBuffer(_world.Game.GraphicsDevice, typeof(VertexPositionTextureShade), _modelVertexArray.Length, BufferUsage.WriteOnly);
_modelVertexBuffer.SetData(_modelVertexArray);
}
else
{
_modelVertexBuffer = null;
}
if (_solidVertexArray.Length > 0)
{
_solidVertexBuffer = new VertexBuffer(
_world.Game.GraphicsDevice, typeof(VertexPositionTextureShade), _solidVertexArray.Length, BufferUsage.WriteOnly);
_solidVertexBuffer.SetData(_solidVertexArray);
}
else
{
_solidVertexBuffer = null;
}
}