private void SpreadInChunk(Chunk chunk)
{
int sunLightLevel;
for (int x = 0; x < Chunk.chunkWidth; x++)
{
bool isXInRange = (x != 0 && x != Chunk.chunkWidth - 1);
for (int z = 0; z < Chunk.chunkDepth; z++)
{
bool isZInRange = (z != 0 && z != Chunk.chunkDepth - 1);
int height = chunk.GetHeight(x, z, true);
int leftHeight = chunk.GetHeight(x - 1, z, isXInRange);
int rightHeight = chunk.GetHeight(x + 1, z, isXInRange);
int frontHeight = chunk.GetHeight(x, z + 1, isZInRange);
int backHeight = chunk.GetHeight(x, z - 1, isZInRange);
int maxHeight = GetMax(height, leftHeight, rightHeight, frontHeight, backHeight);
for (int y = Chunk.chunkHeight - 1; y >= 0; y--)
{
if (y <= maxHeight)
{
sunLightLevel = chunk.GetSunLight(x, y, z, true);
if (sunLightLevel <= 0)
{
break;
}
int index = (x * Chunk.chunkDepth + z) * Chunk.chunkHeight + y;
LightSpreadNode node = NodeCache.Instance.GetSpreadNode(index, sunLightLevel, chunk);
_lightSpread.AddSpreadNode(node);
}
}
}
}
}
private void ShrinkHorizontalInPos(int x, int y, int z, Chunk chunk, int prevLightLevel, int curLightLevel)
{
//当前光照强度为最大值时不收缩
if (curLightLevel >= WorldConfig.Instance.maxLightLevel)
{
return;
}
//当前高度大于光照高度，不再收缩,直接从旁边扩散
if (y >= chunk.GetHeight(x, z, true))
{
int lightLevel = chunk.GetSunLight(x, y, z);
int nextIndex = (x * Chunk.chunkDepth + z) * Chunk.chunkHeight + y;
_lightSpread.AddSpreadNode(NodeCache.Instance.GetSpreadNode(nextIndex, lightLevel, chunk));
return;
}
Block b = chunk.GetBlock(x, y, z, true);
BlockAttributeCalculator calculator = BlockAttributeCalculatorFactory.GetCalculator(b.BlockType);
int lightDamp = calculator.LightDamp(b.ExtendId);
if (lightDamp < WorldConfig.Instance.maxLightLevel)
{
int lightLevel = chunk.GetSunLight(x, y, z);
if (lightLevel > 0)
{
int temp = prevLightLevel - lightDamp;
//如果前一个物块比当前物块的太阳光亮，那么减弱当前物块的亮度
if (temp > lightLevel)
{
int nextLightLevel = curLightLevel - lightDamp - 1;
if (nextLightLevel < 0)
{
nextLightLevel = 0;
}
//如果最终结果没有发生改变，那么不收缩
if (nextLightLevel == lightLevel)
{
return;
}
chunk.SetSunLight(x, y, z, nextLightLevel, true);
if (!_changedList.Contains(chunk))
{
_changedList.Add(chunk);
}
int nextIndex = (x * Chunk.chunkDepth + z) * Chunk.chunkHeight + y;
_lightBfsQueue.Enqueue(NodeCache.Instance.GetShrinkNode(nextIndex, lightLevel, nextLightLevel, chunk));
}
//如果前一个物块比当前物块的太阳光暗，那么增强前一个物块的亮度
else if (temp < lightLevel)
{
int nextIndex = (x * Chunk.chunkDepth + z) * Chunk.chunkHeight + y;
_lightSpread.AddSpreadNode(NodeCache.Instance.GetSpreadNode(nextIndex, lightLevel, chunk));
}
}
}
}
private List <Chunk> GetSunLightChangeChunks(Chunk chunk, int x, int y, int z, Block b, List <Chunk> list)
{
List <Chunk> spreadList = null;
List <Chunk> shrinkList = null;
BlockAttributeCalculator calculator = BlockAttributeCalculatorFactory.GetCalculator(b.BlockType);
int lightDamp = calculator.LightDamp(b.ExtendId);
int height = chunk.GetHeight(x, z);
int lightLevel = chunk.GetSunLight(x, y, z, true);
int curLightLevel;
if (y >= height - 1)
{
for (int ty = y; ty >= height; ty--)
{
Block nextBlock = chunk.GetBlock(x, ty, z);
BlockAttributeCalculator nextCalculator = BlockAttributeCalculatorFactory.GetCalculator(nextBlock.BlockType);
int nextLightDamp = nextCalculator.LightDamp(nextBlock.ExtendId);
if (nextLightDamp > 0)
{
height = ty + 1;
//更新高度
chunk.SetHeight(x, z, height, true);
break;
}
}
curLightLevel = WorldConfig.Instance.maxLightLevel - lightDamp;
if (curLightLevel < 0)
{
curLightLevel = 0;
}
}
else
{
int leftSunLight = chunk.GetSunLight(x - 1, y, z);
int rightSunLight = chunk.GetSunLight(x + 1, y, z);
int topSunLight = chunk.GetSunLight(x, y + 1, z);
int bottomSunLight = chunk.GetSunLight(x, y - 1, z);
int frontSunLight = chunk.GetSunLight(x, y, z + 1);
int backSunLight = chunk.GetSunLight(x, y, z - 1);
int maxSunLight = GetMax(leftSunLight, rightSunLight, topSunLight, bottomSunLight,
frontSunLight, backSunLight);
curLightLevel = maxSunLight - lightDamp - 1;
if (curLightLevel < 0)
{
curLightLevel = 0;
}
}
if (curLightLevel < lightLevel)
{
chunk.SetSunLight(x, y, z, curLightLevel, true);
int index = (x * Chunk.chunkDepth + z) * Chunk.chunkHeight + y;
LightShrinkNode node = NodeCache.Instance.GetShrinkNode(index, lightLevel, curLightLevel, chunk);
_sunLightShrink.AddShrinkNode(node);
shrinkList = _sunLightShrink.ShrinkInChunk(chunk);
}
else if (curLightLevel > lightLevel)
{
chunk.SetSunLight(x, y, z, curLightLevel, true);
int index = (x * Chunk.chunkDepth + z) * Chunk.chunkHeight + y;
LightSpreadNode node = NodeCache.Instance.GetSpreadNode(index, curLightLevel, chunk);
_sunLightSpread.AddSpreadNode(node);
spreadList = _sunLightSpread.SpreadInChunk(chunk);
}
if (spreadList != null)
{
for (int i = 0; i < spreadList.Count; i++)
{
if (!list.Contains(spreadList[i]))
{
list.Add(spreadList[i]);
}
}
}
if (shrinkList != null)
{
for (int i = 0; i < shrinkList.Count; i++)
{
if (!list.Contains(shrinkList[i]))
{
list.Add(shrinkList[i]);
}
}
}
return(list);
}