void GetBlockData(int x, int y, int z, BlockID B, BlockFace F)
{
B.GetFaceVerts(x, y, z, F, Mesh, MeshT);
B.GetFaceUVs(F, Atlas, UVs, UVsT);
if (B.IsTransparent())
{
for (int i = 0; i < 4; i++)
{
ClrsT.Add(new Vector3(1, 1, 1));
}
}
else
{
Sides++;
}
Vector3 Normal;
if (F == BlockFace.Forward)
{
Normal = new Vector3(1, 0, 0);
}
else if (F == BlockFace.Backward)
{
Normal = new Vector3(-1, 0, 0);
}
else if (F == BlockFace.Left)
{
Normal = new Vector3(0, 1, 0);
}
else if (F == BlockFace.Right)
{
Normal = new Vector3(0, -1, 0);
}
else if (F == BlockFace.Top)
{
Normal = new Vector3(0, 0, 1);
}
else
{
Normal = new Vector3(0, 0, -1);
}
List <Vector4> Lst = B.IsTransparent() == false ? BlockData : BlockDataT;
Lst.Add(new Vector4(Normal, (int)B));
Lst.Add(new Vector4(Normal, (int)B));
Lst.Add(new Vector4(Normal, (int)B));
Lst.Add(new Vector4(Normal, (int)B));
}
// Thrown together fast, this REALLY REALLY needs a rewrite, not even i write this shitcode
void Rebuild()
{
Mesh.Clear();
UVs.Clear();
Clrs.Clear();
MeshT.Clear();
UVsT.Clear();
ClrsT.Clear();
BlockData.Clear();
BlockDataT.Clear();
for (int x = 0; x < Size; x++)
{
for (int y = 0; y < Size; y++)
{
for (int z = 0; z < Size; z++)
{
BlockID CurBlock = GetBlock(x, y, z);
if (CurBlock.IsTransparent())
{
BlockID B;
Sides = 0;
if ((B = GetBlock(x, y, z - 1)) != CurBlock)
{
if (B != BlockID.Air)
{
GetBlockData(x, y, z - 1, B, BlockFace.Top);
}
}
if ((B = GetBlock(x, y, z + 1)) != CurBlock)
{
if (B != BlockID.Air)
{
GetBlockData(x, y, z + 1, B, BlockFace.Bottom);
}
}
if ((B = GetBlock(x - 1, y, z)) != CurBlock)
{
if (B != BlockID.Air)
{
GetBlockData(x - 1, y, z, B, BlockFace.Forward);
}
}
if ((B = GetBlock(x + 1, y, z)) != CurBlock)
{
if (B != BlockID.Air)
{
GetBlockData(x + 1, y, z, B, BlockFace.Backward);
}
}
if ((B = GetBlock(x, y - 1, z)) != CurBlock)
{
if (B != BlockID.Air)
{
GetBlockData(x, y - 1, z, B, BlockFace.Left);
}
}
if ((B = GetBlock(x, y + 1, z)) != CurBlock)
{
if (B != BlockID.Air)
{
GetBlockData(x, y + 1, z, B, BlockFace.Right);
}
}
float S = 1f - Sides * 0.095f;
for (int i = 0; i < Sides * 4; i++)
{
Clrs.Add(new Vector3(S, S, S));
}
}
}
}
}
VDDirty = true;
Dirty = false;
}
public static void GetFaceVerts(this BlockID B, int lx, int ly, int lz, BlockFace F, List <Vector3> Opaque,
List <Vector3> Trans)
{
float x = lx * Block.Size;
float y = ly * Block.Size;
float z = lz * Block.Size;
List <Vector3> L = B.IsTransparent() ? Trans : Opaque;
switch (F)
{
case BlockFace.Forward:
L.AddRange(new Vector3[] {
new Vector3(x + Block.Size, y, z),
new Vector3(x + Block.Size, y + Block.Size, z),
new Vector3(x + Block.Size, y + Block.Size, z + Block.Size),
new Vector3(x + Block.Size, y, z + Block.Size)
});
return;
case BlockFace.Backward:
L.AddRange(new Vector3[] {
new Vector3(x, y, z + Block.Size),
new Vector3(x, y + Block.Size, z + Block.Size),
new Vector3(x, y + Block.Size, z),
new Vector3(x, y, z)
});
return;
case BlockFace.Left:
L.AddRange(new Vector3[] {
new Vector3(x, y + Block.Size, z + Block.Size),
new Vector3(x + Block.Size, y + Block.Size, z + Block.Size),
new Vector3(x + Block.Size, y + Block.Size, z),
new Vector3(x, y + Block.Size, z)
});
return;
case BlockFace.Right:
L.AddRange(new Vector3[] {
new Vector3(x, y, z),
new Vector3(x + Block.Size, y, z),
new Vector3(x + Block.Size, y, z + Block.Size),
new Vector3(x, y, z + Block.Size)
});
return;
case BlockFace.Top:
L.AddRange(new Vector3[] {
new Vector3(x, y, z + Block.Size),
new Vector3(x + Block.Size, y, z + Block.Size),
new Vector3(x + Block.Size, y + Block.Size, z + Block.Size),
new Vector3(x, y + Block.Size, z + Block.Size)
});
return;
case BlockFace.Bottom:
L.AddRange(new Vector3[] {
new Vector3(x, y + Block.Size, z),
new Vector3(x + Block.Size, y + Block.Size, z),
new Vector3(x + Block.Size, y, z),
new Vector3(x, y, z)
});
return;
}
throw new Exception("Unreachable code reached");
}
public static void GetFaceUVs(this BlockID B, BlockFace F, Texture Tx, List <Vector2> Opaque, List <Vector2> Trans)
{
float TexSize = 1f / 6f * Tx.W;
float w = 1f / ((float)Tx.W / TexSize);
float h = 1f / ((float)Tx.H / TexSize);
float x = 0;
float y = h * B.GetTexID();
Vector2[] R;
List <Vector2> L = B.IsTransparent() ? Trans : Opaque;
switch (F)
{
case BlockFace.Forward:
R = new Vector2[] {
new Vector2(x + w * 2, y + h),
new Vector2(x + w * 3, y + h),
new Vector2(x + w * 3, y),
new Vector2(x + w * 2, y),
};
break;
case BlockFace.Backward:
R = new Vector2[] {
new Vector2(x + w * 5, y),
new Vector2(x + w * 4, y),
new Vector2(x + w * 4, y + h),
new Vector2(x + w * 5, y + h),
};
break;
case BlockFace.Left:
R = new Vector2[] {
new Vector2(x + w * 6, y),
new Vector2(x + w * 5, y),
new Vector2(x + w * 5, y + h),
new Vector2(x + w * 6, y + h),
};
break;
case BlockFace.Right:
R = new Vector2[] {
new Vector2(x + w * 3, y + h),
new Vector2(x + w * 4, y + h),
new Vector2(x + w * 4, y),
new Vector2(x + w * 3, y),
};
break;
case BlockFace.Top:
R = new Vector2[] {
new Vector2(x, y),
new Vector2(x, y + h),
new Vector2(x + w, y + h),
new Vector2(x + w, y),
};
break;
case BlockFace.Bottom:
R = new Vector2[] {
new Vector2(x + w, y),
new Vector2(x + w, y + h),
new Vector2(x + w * 2, y + h),
new Vector2(x + w * 2, y),
};
break;
default:
throw new Exception("Unknown block face");
}
L.AddRange(R);
}