private void checkneighbors(octan oct, int id)
{
if ((id - width) > 0)
{ //read: "check if top left is an edge"
check(oct.tl, oct.t, oct.l, field.tl);
check(oct.t, oct.tl, oct.tr, field.t);
check(oct.tr, oct.t, oct.r, field.tr);
}
if (id % width != 0)
{
check(oct.l, oct.tl, oct.bl, field.l);
}
if ((id + 1) % width != 0)
{
check(oct.r, oct.tr, oct.br, field.r);
}
if ((id + width) < total)
{
check(oct.bl, oct.l, oct.b, field.bl);
check(oct.b, oct.bl, oct.br, field.b);
check(oct.br, oct.b, oct.r, field.br);
}
}
private octan getOctan(int id)
{
octan oct = new octan();
if ((id - width) > 0)
{
oct.tl = tree.findNode(sel, id - width - 1);
oct.t = tree.findNode(sel, id - width);
oct.tr = tree.findNode(sel, id - width + 1);
}
if (id % width != 0)
{
oct.l = tree.findNode(sel, id - 1);
}
if ((id + 1) % width != 0)
{
oct.r = tree.findNode(sel, id + 1);
}
if ((id + width) < total)
{
oct.bl = tree.findNode(sel, id + width - 1);
oct.b = tree.findNode(sel, id + width);
oct.br = tree.findNode(sel, id + width + 1);
}
return(oct);
}
private void getOctan(int id)
{
octan oct = new octan();
if ((id - width) > 0)
{
oct.tl = tree.findNode(sel, id - width - 1);
oct.t = tree.findNode(sel, id - width);
oct.tr = tree.findNode(sel, id - width + 1);
}
if (id % width != 0)
{
oct.l = tree.findNode(sel, id - 1);
}
if ((id + 1) % width != 0)
{
oct.r = tree.findNode(sel, id + 1);
}
if ((id + width) < total)
{
oct.bl = tree.findNode(sel, id + width - 1);
oct.b = tree.findNode(sel, id + width);
oct.br = tree.findNode(sel, id + width + 1);
}
if ((id - width) > 0)
{ //read: "check if top left is an edge"
check(oct.tl, oct.t, oct.l, n.tl);
check(oct.t, oct.tl, oct.tr, n.t);
check(oct.tr, oct.t, oct.r, n.tr);
}
if (id % width != 0)
{
check(oct.l, oct.tl, oct.bl, n.l);
}
if ((id + 1) % width != 0)
{
check(oct.r, oct.tr, oct.br, n.r);
}
if ((id + width) < total)
{
check(oct.bl, oct.l, oct.b, n.bl);
check(oct.b, oct.bl, oct.br, n.b);
check(oct.br, oct.b, oct.r, n.br);
}
}