private void DefloodLight(IEnumerable<Vector3i> start)
{
FastStack<Vector3i> q = new FastStack<Vector3i>();
q.Initialize(1024);
Vector3i ss = new Vector3i();
foreach (var s in start)
{
q.Push(s);
ss = s;
}
Dictionary<Vector3i, bool> reflood = new Dictionary<Vector3i, bool>();
int searched = 1;
for (; ; )
{
if (q.Count == 0)
{
break;
}
Vector3i v = q.Pop();
searched++;
if (distancesquare(v, new Vector3i(ss.x, ss.y, ss.z)) > maxlight * 2 * maxlight * 2)
{
continue;
}
int vblock = map.GetBlock(v.x, v.y, v.z);
if (!data.GrassGrowsUnder(vblock)
&& data.GetLightRadius(vblock) == 0)
{
continue;
}
int vlight = LightGetBlock(v.x, v.y, v.z);
if (vlight == maxlight
|| data.GetLightRadius(vblock) != 0)
{
reflood[v] = true;
continue;
}
if (vlight == minlight)
{
continue;
}
SetLight(v.x, v.y, v.z, minlight);
foreach (var n in BlocksNear(v.x, v.y, v.z))
{
if (!MapUtil.IsValidPos(map, n.x, n.y, n.z))
{
continue;
}
if (LightGetBlock(n.x, n.y, n.z) < vlight)
{
q.Push(n);
}
else
{
reflood[n] = true;
}
}
}
//Console.WriteLine("reflood: {0}, searched: {1}", reflood.Keys.Count, searched);
foreach (var p in reflood.Keys)
{
currentlightchunk = null;
FloodLight(p.x, p.y, p.z);
}
}