private void BuildItemVertexBuffer(int itemId, string name)
{
t.StartDrawingTiledQuads();
Vector4 c1 = new Vector4(1, 1, 1, 1);
t.ArrayIndex = indexMap[name];
Vector3 normal = new Vector3(0, 0, 1);
float s = 1f;
t.AddVertexWithColor(new Vector4(0f, 0f, 0, 1.0f), c1, normal);
t.AddVertexWithColor(new Vector4(0f, s, 0, 1.0f), c1, normal);
t.AddVertexWithColor(new Vector4(s, s, 0, 1.0f), c1, normal);
t.AddVertexWithColor(new Vector4(s, 0f, 0, 1.0f), c1, normal);
itemVertexBuffers.Add(itemId, t.GetVertexBuffer());
}
internal bool Render(bool forceCachedRendering)
{
// check if this is inside frustum
RenewLease();
bool rebuildOccured = false;
if ((pass1VertexBuffer.Disposed || chunk.IsDirty) && !forceCachedRendering)
{
// pass1
VertexBuffer.Dispose(ref pass1VertexBuffer);
VertexBuffer.Dispose(ref pass2VertexBuffer);
chunk.IsDirty = true;
// rebuild vertices for cunk
BlockRenderer blockRenderer = new BlockRenderer();
PositionBlock startCorner;
chunk.Position.GetMinCornerBlock(out startCorner);
int minX = startCorner.X;
int minY = startCorner.Y;
int minZ = startCorner.Z;
int maxX = startCorner.X + 16;
int maxY = startCorner.Y + 16;
int maxZ = startCorner.Z + 16;
PositionBlock blockPos = new PositionBlock(0, 0, 0);
List <PositionBlock> pass2Blocks = new List <PositionBlock>();
t.StartDrawingTiledQuads();
for (int x = 0; x < 16; x++)
{
for (int y = 0; y < 16; y++)
{
for (int z = 0; z < 16; z++)
{
blockPos.X = x;
blockPos.Y = y;
blockPos.Z = z;
Block block = Block.FromId(chunk.SafeGetLocalBlock(x, y, z));
if (!block.IsTransparent)
{
blockRenderer.RenderBlock(blockPos, chunk);
}
else if (block.Id != BlockRepository.Air.Id)
{
pass2Blocks.Add(blockPos);
}
}
}
}
pass1VertexBuffer = t.GetVertexBuffer();
// generate vertex buffer for pass2
t.StartDrawingTiledQuadsPass2();
foreach (PositionBlock pass2BlockPos in pass2Blocks)
{
blockRenderer.RenderBlock(pass2BlockPos, chunk);
}
pass2VertexBuffer = t.GetVertexBuffer();
chunk.IsDirty = false;
rebuildOccured = true;
}
// draw chunk if drawbuffer has been calculated
t.ResetTransformation();
if (pass1VertexBuffer.Vertices != null)
{
t.StartDrawingTiledQuads();
t.Draw(pass1VertexBuffer);
}
// draw entities in chunk
foreach (EntityStack stack in chunk.StackEntities)
{
int entitiesToDraw = stack.Count > 2 ? 2 : stack.Count;
if (stack.AsBlock != null)
{
t.Translate = stack.Position;
t.Scale = new Vector3(0.5f, 0.5f, 0.5f);
t.Rotate = new Vector3(stack.Pitch, stack.Yaw, 0);
for (int i = 0; i < entitiesToDraw; i++)
{
t.StartDrawingTiledQuads();
t.Draw(TileTextures.Instance.GetBlockVertexBuffer(stack.Id));
t.Translate += new Vector3(0.05f, 0.05f, 0.05f);
}
}
else if (stack.AsItem != null)
{
t.Translate = stack.Position;
t.Scale = new Vector3(0.5f, 0.5f, 0.5f);
for (int i = 0; i < entitiesToDraw; i++)
{
Player p = World.Instance.Player;
t.Rotate = new Vector3(-p.Pitch, p.Yaw + (float)Math.PI, 0);
t.StartDrawingTiledQuadsPass2();
t.Draw(TileTextures.Instance.GetItemVertexBuffer(stack.Id));
t.Translate += new Vector3(0.2f, 0.2f, 0.2f);
}
}
}
return(rebuildOccured);
}
