public GrassTask(World world)
: base(world)
{
int w, l;
lock (world.SyncRoot) {
w = _map.Width;
l = _map.Length;
}
_rndCoords = new Coords[w * l]; //up to 250K per world with grass physics
for (short i = 0; i < w; ++i)
{
for (short j = 0; j < l; ++j)
{
_rndCoords[i * l + j] = new Coords()
{
X = i, Y = j
}
}
}
;
Util.RndPermutate(_rndCoords);
}
private bool Explosion()
{
List <BData> toClean = _explosion;
if (++_currentR <= R)
{
_explosion = new List <BData>();
int rPrev = 0;
for (int z = _currentR; z >= 0; --z)
{
double r2 = _currentR * _currentR - z * z;
double r = Math.Sqrt(r2);
double yPrev = r;
for (double x = 0; x <= Math.Round(r); ++x)
{
if (x > r)
{
x = r;
}
double y = Math.Sqrt(r2 - x * x);
int ix = (int)Math.Round(x);
for (int iy = ix > rPrev?0:(int)Math.Round(y); iy < Math.Max(Math.Round(y) + 1, Math.Round(yPrev)); ++iy)
{
for (int mx = -1; mx < 2; mx += 2)
{
for (int my = -1; my < 2; my += 2)
{
for (int mz = -1; mz < 2; mz += 2)
{
TryAddPoint(mx * ix + _pos.X, my * iy + _pos.Y, mz * z + _pos.Z);
}
}
}
}
yPrev = y;
}
rPrev = (int)Math.Round(r);
}
Util.RndPermutate(_explosion);
foreach (BData pt in _explosion)
{
UpdateMap(new BlockUpdate(null, (short)pt.X, (short)pt.Y, (short)pt.Z, Block.Lava));
foreach (Player p in _world.Players)
{
if (p.CanBeKilled() && p.Position.DistanceSquaredTo((new Vector3I(pt.X, pt.Y, pt.Z)).ToPlayerCoords()) <= 64 * 64) //less or equal than 2 blocks
{
HitPlayer(_world, p, _owner);
}
}
}
}
if (null != toClean)
{
foreach (BData pt in toClean)
{
UpdateMap(new BlockUpdate(null, (short)pt.X, (short)pt.Y, (short)pt.Z,
pt.PrevBlock == Block.Water ? Block.Water : Block.Air));
}
}
return(_currentR <= R);
}