@SuppressWarnings({"unchecked", "rawtypes"})
public IPickable getPickableShapeAt(int x, int y, Class type) {
IPickable res = null;
int bestDist = Integer.MAX_VALUE;
synchronized (shapes) {
for (int i = shapes.size() - 1; i >= 0; i--) {
Shape shape = shapes.get(i);
if (shape.screenCoordinates != null
&& ((type == null && shape instanceof IPickable)
|| (type != null && type.isAssignableFrom(shape.getClass())))) {
int distSq =
(shape.screenCoordinates.x - x) * (shape.screenCoordinates.x - x)
+ (shape.screenCoordinates.y - y) * (shape.screenCoordinates.y - y);
if (distSq > shape.diameter * shape.diameter / 4 + 7 * 7) continue;
distSq += shape.screenCoordinates.z;
if (distSq < bestDist) {
bestDist = distSq;
res = (IPickable) shape;
}
}
}
}
return res;
}
private void _assertIntersect(String msg, SpatialRelation expected, Shape a, Shape b) {
SpatialRelation sect = a.relate(b);
if (sect == expected) return;
msg = ((msg == null) ? "" : msg + "\r") + a + " intersect " + b;
if (expected == WITHIN || expected == CONTAINS) {
if (a.getClass().equals(b.getClass())) // they are the same shape type
assertEquals(msg, a, b);
else {
// they are effectively points or lines that are the same location
assertTrue(msg, !a.hasArea());
assertTrue(msg, !b.hasArea());
Rectangle aBBox = a.getBoundingBox();
Rectangle bBBox = b.getBoundingBox();
if (aBBox.getHeight() == 0
&& bBBox.getHeight() == 0
&& (aBBox.getMaxY() == 90 && bBBox.getMaxY() == 90
|| aBBox.getMinY() == -90 && bBBox.getMinY() == -90)) ; // == a point at the pole
else assertEquals(msg, aBBox, bBBox);
}
} else {
assertEquals(msg, expected, sect); // always fails
}
}
public static void rotate(Shape shape) {
if (shape instanceof Circle) return;
System.out.println("Rotate shape " + shape.getClass().getName());
}