public IdPlayfieldPositionRotation(int nId, string nPlayfield, PVector3 nPos, PVector3 nRot)
 {
     id        = nId;
     pos       = nPos;
     rot       = nRot;
     playfield = nPlayfield;
 }
 public IdPositionRotation(int nId, PVector3 nPos, PVector3 nRot)
 {
     id  = nId;
     pos = nPos;
     rot = nRot;
 }
 public EntityInfo(int nId, int nType, PVector3 nPos)
 {
     id   = nId;
     type = nType;
     pos  = nPos;
 }