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Ensure that array passed to physics is always counter clockwise, fixes #15361.

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This commit is contained in:
Juan Linietsky 2018-11-14 15:55:50 -03:00
parent 88bfb27abf
commit 16022da187
2 changed files with 21 additions and 1 deletions
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7
scene/resources/convex_polygon_shape_2d.cpp
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@ -41,7 +41,11 @@ bool ConvexPolygonShape2D::_edit_is_selected_on_click(const Point2 &p_point, dou
void ConvexPolygonShape2D::_update_shape() {
Physics2DServer::get_singleton()->shape_set_data(get_rid(), points);
Vector<Vector2> final_points = points;
if (Geometry::is_polygon_clockwise(final_points)) { //needs to be counter clockwise
final_points.invert();
}
Physics2DServer::get_singleton()->shape_set_data(get_rid(), final_points);
emit_changed();
}
@ -55,6 +59,7 @@ void ConvexPolygonShape2D::set_point_cloud(const Vector<Vector2> &p_points) {
void ConvexPolygonShape2D::set_points(const Vector<Vector2> &p_points) {
points = p_points;
_update_shape();
}