void UpdateVertexBuffer()
{
if (m_env == null)
{
RemoveAndDispose(ref m_vertexBuffer);
m_vertexList = null;
return;
}
var envContents = m_env.Contents;
if (m_vertexList != null && envContents.Count > m_vertexList.Count)
{
m_vertexList = null;
}
if (m_vertexList == null)
{
m_vertexList = new VertexList <SceneryVertex>(envContents.Count * 2);
}
IntGrid3 viewGrid = m_viewGridProvider.ViewGrid;
m_vertexList.Clear();
foreach (var ob in envContents.OfType <ConcreteObject>())
{
if (viewGrid.Contains(ob.Location) == false)
{
continue;
}
var c = ob.Color;
if (c == GameColor.None)
{
c = ob.Material.Color;
}
m_vertexList.Add(new SceneryVertex(ob.Location.ToVector3(), ToColor(c), (uint)ob.SymbolID));
}
if (m_vertexList.Count > 0)
{
if (m_vertexBuffer == null || m_vertexBuffer.ElementCount < m_vertexList.Count)
{
RemoveAndDispose(ref m_vertexBuffer);
m_vertexBuffer = ToDispose(SharpDX.Toolkit.Graphics.Buffer.Vertex.New <SceneryVertex>(this.GraphicsDevice, m_vertexList.Count));
}
m_vertexBuffer.SetData(m_vertexList.Data, 0, m_vertexList.Count);
}
}
public void UpdateSceneryVertexBuffer(GraphicsDevice device, VertexList <SceneryVertex> vertexList)
{
if (vertexList.Count == 0)
{
return;
}
if (m_sceneryVertexBuffer == null || m_sceneryVertexBuffer.ElementCount < vertexList.Count)
{
Utilities.Dispose(ref m_sceneryVertexBuffer);
m_sceneryVertexBuffer = Buffer.Vertex.New <SceneryVertex>(device, vertexList.Data.Length);
}
m_sceneryVertexBuffer.SetData(vertexList.Data, 0, vertexList.Count);
}
void CreateCube(IntVector3 p, Direction visibleFaces,
ref FaceTexture baseTexture, ref FaceTexture topTexture, VertexList <TerrainVertex> vertexList,
Direction sliceFaces)
{
var offset = p - this.ChunkOffset;
int sides = (int)visibleFaces;
for (int side = 0; side < 6 && sides != 0; ++side, sides >>= 1)
{
if ((sides & 1) == 0)
{
continue;
}
var vertices = s_cubeFaceInfo[side].Vertices;
IntVector3 v0, v1, v2, v3;
v0 = vertices[0] + offset;
v1 = vertices[1] + offset;
v2 = vertices[2] + offset;
v3 = vertices[3] + offset;
Direction dir = (Direction)(1 << side);
bool isSliceFace = (sliceFaces & dir) != 0;
int occ0, occ1, occ2, occ3;
if (isSliceFace)
{
occ0 = occ1 = occ2 = occ3 = 0;
}
else
{
GetOcclusionsForFace(p, (DirectionOrdinal)side,
out occ0, out occ1, out occ2, out occ3);
}
var tex = side == (int)DirectionOrdinal.PositiveZ ? topTexture : baseTexture;
byte sliceHack = isSliceFace ? (byte)1 : (byte)0;
var vd = new TerrainVertex(v0, v1, v2, v3, occ0, occ1, occ2, occ3,
tex, sliceHack);
vertexList.Add(vd);
}
}
void HandleVoxel(IntVector3 p, ref Voxel vox, ref IntGrid3 viewGrid, Direction visibleChunkFaces,
VertexList <TerrainVertex> vertexList)
{
// Faces that are visible due to viewgrid
Direction sliceFaces = GetVoxelSliceDirections(p, ref viewGrid) & visibleChunkFaces;
// Faces that are drawn (if there's something to draw)
Direction visibleFaces = (vox.VisibleFaces | sliceFaces) & visibleChunkFaces;
if (visibleFaces == 0)
{
return;
}
FaceTexture baseTexture, topTexture;
GetTextures(p, ref vox, out baseTexture, out topTexture, sliceFaces);
CreateCube(p, visibleFaces, ref baseTexture, ref topTexture, vertexList,
sliceFaces);
}
public void GenerateVertices(ref IntGrid3 viewGrid, IntVector3 cameraChunkPos,
VertexList <TerrainVertex> terrainVertexList, VertexList <SceneryVertex> sceneryVertexList)
{
terrainVertexList.Clear();
sceneryVertexList.Clear();
var diff = cameraChunkPos - this.ChunkPosition;
Direction visibleChunkFaces = 0;
if (diff.X >= 0)
{
visibleChunkFaces |= Direction.PositiveX;
}
if (diff.X <= 0)
{
visibleChunkFaces |= Direction.NegativeX;
}
if (diff.Y >= 0)
{
visibleChunkFaces |= Direction.PositiveY;
}
if (diff.Y <= 0)
{
visibleChunkFaces |= Direction.NegativeY;
}
if (diff.Z >= 0)
{
visibleChunkFaces |= Direction.PositiveZ;
}
if (diff.Z <= 0)
{
visibleChunkFaces |= Direction.NegativeZ;
}
GenerateVertices(ref viewGrid, visibleChunkFaces, terrainVertexList, sceneryVertexList);
this.VertexCount = terrainVertexList.Count;
this.SceneryVertexCount = sceneryVertexList.Count;
}
public void UpdateVertexBuffer(GraphicsDevice device, VertexList <TerrainVertex> vertexList)
{
if (vertexList.Count == 0)
{
return;
}
if (m_vertexBuffer == null || m_vertexBuffer.ElementCount < vertexList.Count)
{
if (vertexList.Count > m_maxVertices)
{
m_maxVertices = vertexList.Count;
}
//System.Diagnostics.Trace.TraceError("Alloc {0}: {1} verts", this.ChunkOffset, m_maxVertices);
Utilities.Dispose(ref m_vertexBuffer);
m_vertexBuffer = Buffer.Vertex.New <TerrainVertex>(device, m_maxVertices);
}
m_vertexBuffer.SetData(vertexList.Data, 0, vertexList.Count);
}
void CreateUndefinedChunk(ref IntGrid3 viewGrid, ref IntGrid3 chunkGrid, VertexList <TerrainVertex> vertexList,
Direction visibleChunkFaces)
{
// Faces that are visible due to viewgrid
Direction sliceFaces = GetGridSliceDirections(ref chunkGrid, ref viewGrid) & visibleChunkFaces;
// Only faces revealed by viewgrid are visible
Direction visibleFaces = sliceFaces;
if (visibleFaces == 0)
{
return;
}
int sides = (int)visibleFaces;
FaceTexture tex = Chunk.UndefinedFaceTexture;
const int occlusion = 0;
var offset = chunkGrid.Corner1 - this.ChunkOffset;
var size = new IntVector3(chunkGrid.Size.Width, chunkGrid.Size.Height, chunkGrid.Size.Depth);
// All faces are revealed by viewgrid
byte sliceHack = (byte)1;
if (Chunk.UseBigUnknownChunk)
{
/* Note: Using chunk sized quads causes t-junction problems */
for (int side = 0; side < 6 && sides != 0; ++side, sides >>= 1)
{
if ((sides & 1) == 0)
{
continue;
}
var vertices = s_cubeFaceInfo[side].Vertices;
IntVector3 v0 = vertices[0] * size + offset;
IntVector3 v1 = vertices[1] * size + offset;
IntVector3 v2 = vertices[2] * size + offset;
IntVector3 v3 = vertices[3] * size + offset;
var vd = new TerrainVertex(v0, v1, v2, v3, occlusion, occlusion, occlusion, occlusion, tex, sliceHack);
vertexList.Add(vd);
}
}
else
{
for (int side = 0; side < 6 && sides != 0; ++side, sides >>= 1)
{
if ((sides & 1) == 0)
{
continue;
}
int d0 = side / 2;
int d1 = (d0 + 1) % 3;
int d2 = (d0 + 2) % 3;
bool posFace = (side & 1) == 1;
var vertices = s_cubeFaceInfo[side].Vertices;
IntVector3 v0 = vertices[0] + offset;
IntVector3 v1 = vertices[1] + offset;
IntVector3 v2 = vertices[2] + offset;
IntVector3 v3 = vertices[3] + offset;
var vec1 = new IntVector3();
vec1[d1] = 1;
var vec2 = new IntVector3();
vec2[d2] = 1;
for (int v = 0; v < size[d1]; ++v)
{
for (int u = 0; u < size[d2]; ++u)
{
var off = vec1 * v + vec2 * u;
if (posFace)
{
off[d0] = size[d0] - 1;
}
var vd = new TerrainVertex(v0 + off, v1 + off, v2 + off, v3 + off,
occlusion, occlusion, occlusion, occlusion, tex, sliceHack);
vertexList.Add(vd);
}
}
}
}
}
static void HandleTree(VertexList <SceneryVertex> sceneryVertexList, TileData td, ref IntVector3 pos)
{
SymbolID symbol;
Color color;
switch (td.ID)
{
case TileID.Tree:
switch (td.MaterialID)
{
case MaterialID.Fir:
symbol = SymbolID.ConiferousTree;
break;
case MaterialID.Pine:
symbol = SymbolID.ConiferousTree2;
break;
case MaterialID.Birch:
symbol = SymbolID.DeciduousTree;
break;
case MaterialID.Oak:
symbol = SymbolID.DeciduousTree2;
break;
default:
throw new Exception();
}
break;
case TileID.Sapling:
switch (td.MaterialID)
{
case MaterialID.Fir:
symbol = SymbolID.ConiferousSapling;
break;
case MaterialID.Pine:
symbol = SymbolID.ConiferousSapling2;
break;
case MaterialID.Birch:
symbol = SymbolID.DeciduousSapling;
break;
case MaterialID.Oak:
symbol = SymbolID.DeciduousSapling2;
break;
default:
throw new Exception();
}
break;
case TileID.DeadTree:
symbol = SymbolID.DeadTree;
break;
default:
throw new Exception();
}
color = Color.ForestGreen;
sceneryVertexList.Add(new SceneryVertex(pos.ToVector3(), Color.LightGreen, (uint)symbol));
}
void GenerateVertices(ref IntGrid3 viewGrid, Direction visibleChunkFaces,
VertexList <TerrainVertex> terrainVertexList,
VertexList <SceneryVertex> sceneryVertexList)
{
IntGrid3 chunkGrid = viewGrid.Intersect(new IntGrid3(this.ChunkOffset, Chunk.ChunkSize));
// is the chunk inside frustum, but outside the viewgrid?
if (chunkGrid.IsNull)
{
return;
}
if (m_scanned == false)
{
ScanForAllEmptyOrUndefined();
}
if (this.IsAllEmpty)
{
return;
}
if (this.IsAllUndefined)
{
CreateUndefinedChunk(ref viewGrid, ref chunkGrid, terrainVertexList, visibleChunkFaces);
return;
}
if (m_voxelMap == null)
{
FillVoxelMap();
}
// Draw from up to down to avoid overdraw
for (int z = chunkGrid.Z2; z >= chunkGrid.Z1; --z)
{
for (int y = chunkGrid.Y1; y <= chunkGrid.Y2; ++y)
{
for (int x = chunkGrid.X1; x <= chunkGrid.X2; ++x)
{
var p = new IntVector3(x, y, z);
var td = m_map.GetTileData(p);
if (td.WaterLevel == 0)
{
if (td.IsEmpty)
{
continue;
}
}
var pos = p - this.ChunkOffset;
if (td.HasTree)
{
// Add tree as scenery vertex
HandleTree(sceneryVertexList, td, ref pos);
continue;
}
if (td.IsGreen) // XXX
{
continue;
}
var vox = m_voxelMap.Grid[pos.Z, pos.Y, pos.X];
HandleVoxel(p, ref vox, ref viewGrid, visibleChunkFaces, terrainVertexList);
}
}
}
}
