// To be refined, still inaccurate :(
public final boolean checkRelevantFH(
final short fromx, final short fromy, final short tox, final short toy) {
MapleFoothold fhdata = null;
for (final MapleFoothold fh : footholds) { // From
if (fh.getX1() <= fromx
&& fh.getX2() >= fromx
&& fh.getY1() <= fromy
&& fh.getY2() >= fromy) { // monster pos is within
fhdata = fh;
break;
}
}
for (final MapleFoothold fh2 : footholds) { // To
if (fh2.getX1() <= tox
&& fh2.getX2() >= tox
&& fh2.getY1() <= toy
&& fh2.getY2() >= toy) { // monster pos is within
if (!(fhdata.getId() == fh2.getId()
|| fh2.getId() == fhdata.getNext()
|| fh2.getId() == fhdata.getPrev())) {
System.out.println("Couldn't find the correct pos for next/prev");
return false;
}
return true;
}
}
return false;
}
public final void insert(final MapleFoothold f) {
if (depth == 0) {
if (f.getX1() > maxDropX) {
maxDropX = f.getX1();
}
if (f.getX1() < minDropX) {
minDropX = f.getX1();
}
if (f.getX2() > maxDropX) {
maxDropX = f.getX2();
}
if (f.getX2() < minDropX) {
minDropX = f.getX2();
}
}
if (
/*footholds.size() == 0 || */ depth == maxDepth
|| (f.getX1() >= p1.x && f.getX2() <= p2.x && f.getY1() >= p1.y && f.getY2() <= p2.y)) {
footholds.add(f);
} else {
if (nw == null) {
nw = new MapleFootholdTree(p1, center, depth + 1);
ne = new MapleFootholdTree(new Point(center.x, p1.y), new Point(p2.x, center.y), depth + 1);
sw = new MapleFootholdTree(new Point(p1.x, center.y), new Point(center.x, p2.y), depth + 1);
se = new MapleFootholdTree(center, p2, depth + 1);
}
if (f.getX2() <= center.x && f.getY2() <= center.y) {
nw.insert(f);
} else if (f.getX1() > center.x && f.getY2() <= center.y) {
ne.insert(f);
} else if (f.getX2() <= center.x && f.getY1() > center.y) {
sw.insert(f);
} else {
se.insert(f);
}
}
}
public final MapleFoothold findBelow(final Point p) {
final List<MapleFoothold> relevants = getRelevants(p);
// find fhs with matching x coordinates
final List<MapleFoothold> xMatches = new LinkedList<>();
for (final MapleFoothold fh : relevants) {
if (fh.getX1() <= p.x && fh.getX2() >= p.x) {
xMatches.add(fh);
}
}
Collections.sort(xMatches);
for (final MapleFoothold fh : xMatches) {
if (fh.isWall()) { // x1 == x2 -- 墙壁
continue;
}
if (fh.getY1() != fh.getY2()) {
final double s1 = Math.abs(fh.getY2() - fh.getY1());
final double s2 = Math.abs(fh.getX2() - fh.getX1());
final double s4 = Math.abs(p.x - fh.getX1());
final double alpha = Math.atan(s2 / s1);
final double beta = Math.atan(s1 / s2);
final double s5 = Math.cos(alpha) * (s4 / Math.cos(beta));
int calcY;
if (fh.getY2() < fh.getY1()) {
calcY = fh.getY1() - (int) s5;
} else {
calcY = fh.getY1() + (int) s5;
}
if (calcY >= p.y) {
return fh;
}
} else if (fh.getY1() >= p.y) {
return fh;
}
}
return null;
}
private MapleFoothold findWallR(final Point p1, final Point p2) {
MapleFoothold ret;
for (final MapleFoothold f : footholds) {
// if (f.isWall()) System.out.println(f.getX1() + " " + f.getX2());
if (f.isWall()
&& f.getX1() >= p1.x
&& f.getX1() <= p2.x
&& f.getY1() >= p1.y
&& f.getY2() <= p1.y) {
return f;
}
}
if (nw != null) {
if (p1.x <= center.x && p1.y <= center.y) {
ret = nw.findWallR(p1, p2);
if (ret != null) {
return ret;
}
}
if ((p1.x > center.x || p2.x > center.x) && p1.y <= center.y) {
ret = ne.findWallR(p1, p2);
if (ret != null) {
return ret;
}
}
if (p1.x <= center.x && p1.y > center.y) {
ret = sw.findWallR(p1, p2);
if (ret != null) {
return ret;
}
}
if ((p1.x > center.x || p2.x > center.x) && p1.y > center.y) {
ret = se.findWallR(p1, p2);
if (ret != null) {
return ret;
}
}
}
return null;
}