public static bool[, ,] GetVisibleBlocks(BlockChunk chunk, BlockTypeFunBase blockFun)
{
bool[, ,] blocks = new bool[Const.ChunkSize, Const.ChunkSize, Const.ChunkSize];
for (int normalIndex = 0; normalIndex < 6; normalIndex++)
{
int stepX = normalIndex == 0 ? -1 : (normalIndex == 1 ? 1 : 0);
int stepY = normalIndex == 2 ? -1 : (normalIndex == 3 ? 1 : 0);
int stepZ = normalIndex == 4 ? -1 : (normalIndex == 5 ? 1 : 0);
for (int x = 0; x < Const.ChunkSize; x++)
{
for (int y = 0; y < Const.ChunkSize; y++)
{
for (int z = 0; z < Const.ChunkSize; z++)
{
int nextX = x + stepX;
int nextY = y + stepY;
int nextZ = z + stepZ;
short block = chunk.getBlock(x, y, z);
if (block != 0)
{
bool isCurrentVisible = blockFun.isCollider(block);
short nextBlock = chunk.getBlock(nextX, nextY, nextZ);
bool isNextOpacity = blockFun.isCollider(nextBlock);
if (isCurrentVisible && !isNextOpacity)
{
blocks[x, y, z] = true;
}
}
}
}
}
}
return(blocks);
}
public static List <BlockSurface> getChunkSurface(BlockChunk chunk, BlockTypeFunBase blockFun, int normalIndex)
{
int stepX = normalIndex == 0 ? -1 : (normalIndex == 1 ? 1 : 0);
int stepY = normalIndex == 2 ? -1 : (normalIndex == 3 ? 1 : 0);
int stepZ = normalIndex == 4 ? -1 : (normalIndex == 5 ? 1 : 0);
List <BlockSurface> surfacePoints = new List <BlockSurface>();
for (int x = 0; x < Const.ChunkSize; x++)
{
for (int y = 0; y < Const.ChunkSize; y++)
{
for (int z = 0; z < Const.ChunkSize; z++)
{
int nextX = x + stepX;
int nextY = y + stepY;
int nextZ = z + stepZ;
short block = chunk.getBlock(x, y, z);
bool isCurrentVisible = blockFun.isVisible(block);
bool isNextOpacity = blockFun.isOpacity(chunk.getBlockSmart(nextX, nextY, nextZ));
if (isCurrentVisible && !isNextOpacity)
{
BlockSurface surface = new BlockSurface(new Vector3(x, y, z), block, new float[4], new float[4]);
for (int v = 0; v < 4; v++)
{
surface.smallAo[v] = getVertexSmallAo(chunk, blockFun, x, y, z, normalIndex, v);
}
surfacePoints.Add(surface);
}
}
}
}
return(surfacePoints);
}
public void create(int chunkNumX, int chunkNumY, int chunkNumZ, BlockTypeFunBase blockTypeFun)
{
this.chunkNumX = chunkNumX;
this.chunkNumY = chunkNumY;
this.chunkNumZ = chunkNumZ;
this.blockTypeFun = blockTypeFun;
Array.Resize(ref chunks, chunkNumX * chunkNumY * chunkNumZ);
for (int i = 0; i < chunks.Length; i++)
{
chunks[i] = new BlockChunk(blockTypeFun);
}
forEachChunk((chunk, i, j, k) =>
{
for (int x = -1; x <= 1; x++)
{
for (int y = -1; y <= 1; y++)
{
for (int z = -1; z <= 1; z++)
{
// int index = (z+1)*9+(y+1)*3+x+1;
if (i + x >= 0 && i + x < chunkNumX && j + y >= 0 && j + y < chunkNumY && k + z >= 0 && k + z < chunkNumZ)
{
chunk.setAdjacencyChunk(x, y, z, getChunk(i + x, j + y, k + z));
}
}
}
}
});
}
static BlockChunk createDefaultChunk()
{
BlockChunk rlt = new BlockChunk(null);
for (int i = 0; i < Const.ChunkSize; i++)
{
for (int j = 0; j < Const.ChunkSize; j++)
{
for (int k = 0; k < Const.ChunkSize; k++)
{
rlt.setBlock(i, j, k, (short)BlockTypeEnum.Out);
}
}
}
return(rlt);
}
private static float getVertexSmallAo(BlockChunk blocks, BlockTypeFunBase blockFun, int x, int y, int z, int faceIndex, int vertixIndex)
{
float rlt = 1.0f;
int offset0X = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 0, 0];
int offset0Y = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 0, 1];
int offset0Z = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 0, 2];
bool bBlock0 = blockFun.isOpacity(blocks.getBlockSmart(x + offset0X, y + offset0Y, z + offset0Z));
int offset1X = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 1, 0];
int offset1Y = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 1, 1];
int offset1Z = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 1, 2];
bool bBlock1 = blockFun.isOpacity(blocks.getBlockSmart(x + offset1X, y + offset1Y, z + offset1Z));
int offset2X = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 2, 0];
int offset2Y = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 2, 1];
int offset2Z = Const.VertexAdjacencyOffset[faceIndex, vertixIndex, 2, 2];
bool bBlock2 = blockFun.isOpacity(blocks.getBlockSmart(x + offset2X, y + offset2Y, z + offset2Z));
if (bBlock0 && bBlock2) //如果两个共边对角块都是实体，则共点对角块存不存在已经无所谓，说明是三面内角
{
rlt *= 0.7f;
}
else if ((bBlock0 && bBlock1) || (bBlock1 && bBlock2)) //如果有一个共边对角块和一个共点对角块，则说明是阶梯的内角
{
rlt *= 0.8f;
}
else if (bBlock0 || bBlock1 || bBlock2)
{
rlt *= 0.8f;
}
else
{
rlt *= 1.0f;
}
return(rlt);
}
public static void calcChunkLight(BlockChunk chunk, int cx, int cy, int cz, RayCastManager rayTraceManager, Vector3[][] rays, Vector3 sunDir)
{
//List<VecInt3>[] surfaces = chunk.calcSurfaceList();
//for (int f = 0; f < 6; f++) {
// List<VecInt3> surs = surfaces[f];
// for (int i = 0; i < surs.Count; i++) {
// VecInt3 surface = surs[i];
// int gx = cx * Const.ChunkSize + surface.x;
// int gy = cy * Const.ChunkSize + surface.y;
// int gz = cz * Const.ChunkSize + surface.z;
// Vector3 faceNormal = Const.getFaceNormal(f);
// float faceLightFactor = Vector3.Dot(faceNormal, -sunDir);
// Vector3 startPos = (new Vector3(gx, gy, gz) + Vector3.one * 0.5f + faceNormal * 0.51f) * Const.BlockSize;
//
// float directionLight = 0;
// float aoLight = 0;
// float aoLenght = 8.0f;
// if(faceLightFactor > 0){
// RayCastRestult rlt = rayTraceManager.rayCast(startPos, -sunDir, 30);
// directionLight += rlt.bHit ? 0 : faceLightFactor;
// }
// for (int r = 0; r < rays[f].Length; r++) {
// RayCastRestult rlt = rayTraceManager.rayCast(startPos, rays[f][r], aoLenght);
// if (rlt.bHit && rlt.hitLength < aoLenght) {
// float a = ((rlt.hitLength) / aoLenght);
// aoLight += (a / rays[f].Length);
// }
// else {
// aoLight += 1.0f / rays[f].Length;
// }
// }
// float brightness = directionLight * 0.35f + aoLight * 0.45f + 0.2f;
// brightness = Mathf.Clamp(brightness, 0, 1);
// chunk.setBrightness(surface.x, surface.y, surface.z, f, (Byte)(brightness * Const.MaxBrightness));
// }
//}
}
public void setAdjacencyChunk(int x, int y, int z, BlockChunk chunk)
{
adjacencyChunks[(z + 1) * 9 + (y + 1) * 3 + (x + 1)] = chunk;
}