private void FillRenderDataForOneChunk(Island island, int chunkCoordinateX, int chunkCoordinateY)
{
int amountOfBlockVerticesAdded = 0;
for (int islandX = CHUNK_EDGE_LENGTH_IN_BLOCKS * chunkCoordinateX; islandX < CHUNK_EDGE_LENGTH_IN_BLOCKS * (chunkCoordinateX + 1); islandX++)
{
for (int islandZ = CHUNK_EDGE_LENGTH_IN_BLOCKS * chunkCoordinateY; islandZ < CHUNK_EDGE_LENGTH_IN_BLOCKS * (chunkCoordinateY + 1); islandZ++)
{
for (int islandY = 0; islandY < Island.HEIGHT_IN_BLOCKS; islandY++)
{
if (islandX < island.GetXzDimension() && islandZ < island.GetXzDimension())
{
BlockPosition globalPosition = new BlockPosition(islandX, islandY, islandZ);
if (island.GetBlockAt(globalPosition).GetBlockType() != BlockTypes.AIR)
{
int inChunkX = islandX - CHUNK_EDGE_LENGTH_IN_BLOCKS * chunkCoordinateX;
int inChunkZ = islandZ - CHUNK_EDGE_LENGTH_IN_BLOCKS * chunkCoordinateY;
BlockVisualsBuilder blockVisualsBuilder = BuildBlockVisualsFromBlock(island, globalPosition, inChunkX, inChunkZ, amountOfBlockVerticesAdded);
if (blockVisualsBuilder.GetShapePositions().Length > 0)
{
FillOpaqueBlockBuffersWithVisualRenderData(blockVisualsBuilder);
amountOfBlockVerticesAdded += blockVisualsBuilder.GetNumberOfAddedVertices();
}
}
}
}
}
}
}
private void FillOpaqueBlockBuffersWithVisualRenderData(BlockVisualsBuilder blockRenderDataBuilder)
{
floatBuffersOfOpaqueBlocksInChunk.Add(blockRenderDataBuilder.GetShapePositions());
floatBuffersOfOpaqueBlocksInChunk.Add(blockRenderDataBuilder.GetShapeNormals());
floatBuffersOfOpaqueBlocksInChunk.Add(blockRenderDataBuilder.GetShapeUvCoordinates());
intBuffersOfOpaqueBlocksInChunk.Add(blockRenderDataBuilder.GetShapeIndices());
}
private BlockVisualsBuilder BuildBlockVisualsFromBlock(Island island, BlockPosition globalPosition, int inChunkX, int inChunkZ, int currentBlockRenderIndex)
{
BlockPosition positionOfBlockInChunk = new BlockPosition(inChunkX, globalPosition.Y, inChunkZ);
Block currentBlock = island.GetBlockAt(globalPosition);
BlockVisualsBuilder blockVisualsBuilder = BlockVisualsBuilder.FromBlockType(currentBlock.GetBlockType());
blockVisualsBuilder.SetBlockToCreateDataFrom(currentBlock)
.SetPositionOfBlockInChunk(positionOfBlockInChunk)
.SetIndexBufferOffsetInChunk(currentBlockRenderIndex)
.SetFrontFaceOfBlockIsHidden(island.BlockFaceAtPositionIsHidden(BlockFaceDirections.FRONT, globalPosition))
.SetRightFaceOfBlockIsHidden(island.BlockFaceAtPositionIsHidden(BlockFaceDirections.RIGHT, globalPosition))
.SetBackFaceOfBlockIsHidden(island.BlockFaceAtPositionIsHidden(BlockFaceDirections.BACK, globalPosition))
.SetLeftFaceOfBlockIsHidden(island.BlockFaceAtPositionIsHidden(BlockFaceDirections.LEFT, globalPosition))
.SetBottomFaceOfBlockIsHidden(island.BlockFaceAtPositionIsHidden(BlockFaceDirections.BOTTOM, globalPosition))
.SetTopFaceOfBlockIsHidden(island.BlockFaceAtPositionIsHidden(BlockFaceDirections.TOP, globalPosition))
.Build();
return(blockVisualsBuilder);
}