@Override
public void setPreviewPoint(final int x, final int y) {
final EditState editState = new EditState();
if (editPointIndex == -1) {
pickContainer(x, y, Wall.class);
recalculateEditPoints = true;
} else if (editPointIndex == 0) {
final ReadOnlyVector3 base = getCenter();
final Vector3 p = Util.closestPoint(base, Vector3.UNIT_Z, x, y);
if (p != null) {
snapToGrid(p, getAbsPoint(editPointIndex), getGridSize());
height = Math.max(0, p.getZ() - base.getZ());
}
} else if (editPointIndex == 1 || editPointIndex == 2) {
final Vector3 hipDirection =
container.getAbsPoint(2).subtractLocal(container.getAbsPoint(0)).normalizeLocal();
final Vector3 p = Util.closestPoint(getAbsPoint(0), hipDirection, x, y);
if (p != null) {
// snapToGrid(p, getAbsPoint(editPointIndex), getGridSize(), false);
if (insideWallsPolygon(p)) points.get(editPointIndex).set(toRelative(p));
}
}
postEdit(editState);
}
private Vector3 findFarthestIntersection(
final List<? extends ReadOnlyVector3> wallUpperPoints,
final ReadOnlyVector3 center,
final Vector3 p) {
double farthestDistance = 0;
Vector3 farthestIntersection = null;
final int n = wallUpperPoints.size();
for (int i = 0; i < n; i++) {
final Vector3 intersect =
Util.intersectLineSegments(
center, p, wallUpperPoints.get(i), wallUpperPoints.get((i + 1) % n));
if (intersect != null) {
final double d = intersect.distanceSquared(center);
if (d > farthestDistance) {
farthestDistance = d;
farthestIntersection = intersect;
}
}
}
return farthestIntersection;
}
public Arc(final String name, final int vertices) {
super(name);
getMeshData().setIndexMode(IndexMode.LineStrip);
getMeshData().setVertexBuffer(BufferUtils.createVector3Buffer(vertices));
Util.disablePickShadowLight(this);
}