/// <summary>
/// Create a round section of type matidx in blocklist.
/// </summary>
/// <param name="map"></param>
/// <param name="vCenter">the coordinates of the center block</param>
/// <param name="radius">the radius of the section.</param>
/// <param name="diraxis">The list index for the axis to make the section perpendicular to. 0 indicates the x axis, 1 the y, 2 the z. The section will extend along the other two axies.</param>
/// <param name="mat">What to make the section out of</param>
public void crossection(ref IMapHandler map, Vector3i vCenter, double radius, int diraxis, byte mat)
{
long[] centArray = vCenter.ToArray();
int rad = (int)(radius + .618d);
int secidx1 = (diraxis - 1) % 3;
int secidx2 = (1 + diraxis) % 3;
int[] coord = new int [] { 0, 0, 0 };
for (int off1 = -rad; off1 < rad + 1; off1++)
{
for (int off2 = -rad; off2 < rad + 1; off2++)
{
double thisdist = Math.Sqrt(Math.Pow((double)Math.Abs(off1) + .5d, 2d) + Math.Pow((double)Math.Abs(off2) + .5d, 2));
if (thisdist > radius)
{
continue;
}
int pri = (int)centArray[diraxis];
int sec1 = (int)centArray[secidx1] + off1;
int sec2 = (int)centArray[secidx2] + off2;
coord[diraxis] = pri;
coord[secidx1] = sec1;
coord[secidx2] = sec2;
map.SetBlockAt(coord[0], coord[1], coord[2], mat);
}
}
}
/// <summary>
/// Create a tapered cylinder in blocklist.
/// start and end are the beginning and ending coordinates of form [x,y,z].
/// startsize and endsize are the beginning and ending radius.
/// The material of the cylinder is 17, which indicates wood in Minecraft.
/// </summary>
/// <param name="map"></param>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="startsize"></param>
/// <param name="endsize"></param>
public void taperedlimb(ref IMapHandler map, Vector3i vStart, Vector3i vEnd, int startsize, int endsize)
{
// delta is the coordinate vector for the difference between
// start and end.
Vector3i vDelta = vEnd - vStart;
long[] delta = vDelta.ToArray();
long[] start = vStart.ToArray();
long[] end = vEnd.ToArray();
// primidx is the index (0,1,or 2 for x,y,z) for the coordinate
// which has the largest overall delta.
long maxdist = 0;
int primidx=0;
for(int i = 0;i<3;i++)
{
if(Math.Abs(delta[i])>maxdist)
{
maxdist=delta[i];
primidx=i;
}
}
if(maxdist == 0)
return;
// secidx1 and secidx2 are the remaining indicies out of [0,1,2].
int secidx1 = (primidx - 1)%3;
int secidx2 = (1 + primidx)%3;
// primsign is the digit 1 or -1 depending on whether the limb is headed
// along the positive or negative primidx axis.
long primsign = delta[primidx]/Math.Abs(delta[primidx]);
// secdelta1 and ...2 are the amount the associated values change
// for every step along the prime axis.
long secdelta1 = delta[secidx1];
double secfac1 = (double)(secdelta1)/delta[primidx];
long secdelta2 = delta[secidx2];
double secfac2 = (double)(secdelta2)/delta[primidx];
// Initialize coord. These values could be anything, since
// they are overwritten.
long[] coord = new long[]{0,0,0};
// Loop through each crossection along the primary axis,
// from start to end.
long endoffset = delta[primidx] + primsign;
for(long primoffset=0;primoffset<endoffset;primoffset+=primsign)//primoffset in range(0, endoffset, primsign):
{
long primloc = start[primidx] + primoffset;
int secloc1 = (int)(start[secidx1] + primoffset*secfac1);
int secloc2 = (int)(start[secidx2] + primoffset*secfac2);
coord[primidx] = primloc;
coord[secidx1] = secloc1;
coord[secidx2] = secloc2;
long primdist = Math.Abs(delta[primidx]);
int radius = (int)(endsize + (startsize-endsize) * Math.Abs(delta[primidx] - primoffset) / primdist);
crossection(ref map,new Vector3i(coord[0],coord[1],coord[2]),radius,primidx,17);
}
}
/// <summary>
/// Create a tapered cylinder in blocklist.
/// start and end are the beginning and ending coordinates of form [x,y,z].
/// startsize and endsize are the beginning and ending radius.
/// The material of the cylinder is 17, which indicates wood in Minecraft.
/// </summary>
/// <param name="map"></param>
/// <param name="start"></param>
/// <param name="end"></param>
/// <param name="startsize"></param>
/// <param name="endsize"></param>
public void taperedlimb(ref IMapHandler map, Vector3i vStart, Vector3i vEnd, int startsize, int endsize)
{
// delta is the coordinate vector for the difference between
// start and end.
Vector3i vDelta = vEnd - vStart;
long[] delta = vDelta.ToArray();
long[] start = vStart.ToArray();
long[] end = vEnd.ToArray();
// primidx is the index (0,1,or 2 for x,y,z) for the coordinate
// which has the largest overall delta.
long maxdist = 0;
int primidx = 0;
for (int i = 0; i < 3; i++)
{
if (Math.Abs(delta[i]) > maxdist)
{
maxdist = delta[i];
primidx = i;
}
}
if (maxdist == 0)
{
return;
}
// secidx1 and secidx2 are the remaining indicies out of [0,1,2].
int secidx1 = (primidx - 1) % 3;
int secidx2 = (1 + primidx) % 3;
// primsign is the digit 1 or -1 depending on whether the limb is headed
// along the positive or negative primidx axis.
long primsign = delta[primidx] / Math.Abs(delta[primidx]);
// secdelta1 and ...2 are the amount the associated values change
// for every step along the prime axis.
long secdelta1 = delta[secidx1];
double secfac1 = (double)(secdelta1) / delta[primidx];
long secdelta2 = delta[secidx2];
double secfac2 = (double)(secdelta2) / delta[primidx];
// Initialize coord. These values could be anything, since
// they are overwritten.
long[] coord = new long[] { 0, 0, 0 };
// Loop through each crossection along the primary axis,
// from start to end.
long endoffset = delta[primidx] + primsign;
for (long primoffset = 0; primoffset < endoffset; primoffset += primsign)//primoffset in range(0, endoffset, primsign):
{
long primloc = start[primidx] + primoffset;
int secloc1 = (int)(start[secidx1] + primoffset * secfac1);
int secloc2 = (int)(start[secidx2] + primoffset * secfac2);
coord[primidx] = primloc;
coord[secidx1] = secloc1;
coord[secidx2] = secloc2;
long primdist = Math.Abs(delta[primidx]);
int radius = (int)(endsize + (startsize - endsize) * Math.Abs(delta[primidx] - primoffset) / primdist);
crossection(ref map, new Vector3i(coord[0], coord[1], coord[2]), radius, primidx, 17);
}
}
/// <summary>
/// Create a round section of type matidx in blocklist.
/// </summary>
/// <param name="map"></param>
/// <param name="vCenter">the coordinates of the center block</param>
/// <param name="radius">the radius of the section.</param>
/// <param name="diraxis">The list index for the axis to make the section perpendicular to. 0 indicates the x axis, 1 the y, 2 the z. The section will extend along the other two axies.</param>
/// <param name="mat">What to make the section out of</param>
public void crossection(ref IMapHandler map, Vector3i vCenter, double radius, int diraxis, byte mat)
{
long[] centArray=vCenter.ToArray();
int rad = (int)(radius + .618d);
int secidx1 = (diraxis - 1)%3;
int secidx2 = (1 + diraxis)%3;
int[] coord = new int []{0,0,0};
for(int off1 =-rad; off1<rad+1;off1++)
{
for(int off2 =-rad; off2<rad+1;off2++)
{
double thisdist = Math.Sqrt(Math.Pow((double)Math.Abs(off1)+.5d,2d) + Math.Pow((double)Math.Abs(off2) + .5d,2));
if(thisdist > radius)
continue;
int pri = (int)centArray[diraxis];
int sec1 = (int)centArray[secidx1] + off1;
int sec2 = (int)centArray[secidx2] + off2;
coord[diraxis] = pri;
coord[secidx1] = sec1;
coord[secidx2] = sec2;
map.SetBlockAt(coord[0],coord[1],coord[2],mat);
}
}
}