Fix grid snapping for box shape gizmos
"Extruding" box face (i.e. moving it without holding Alt key) will now always snap new box size exactly to the nearest snap step.
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1 changed files with 33 additions and 23 deletions
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@ -77,36 +77,46 @@ String Gizmo3DHelper::box_get_handle_name(int p_id) const {
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}
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void Gizmo3DHelper::box_set_handle(const Vector3 p_segment[2], int p_id, Vector3 &r_box_size, Vector3 &r_box_position) {
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Vector3 axis;
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axis[p_id / 2] = 1.0;
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Vector3 ra, rb;
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int axis = p_id / 2;
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int sign = p_id % 2 * -2 + 1;
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Vector3 initial_size = initial_value;
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float neg_end = initial_size[axis] * -0.5;
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float pos_end = initial_size[axis] * 0.5;
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Geometry3D::get_closest_points_between_segments(Vector3(), axis * 4096 * sign, p_segment[0], p_segment[1], ra, rb);
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if (ra[p_id / 2] == 0) {
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// Point before half of the shape. Needs to be calculated in opposite direction.
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Geometry3D::get_closest_points_between_segments(Vector3(), axis * 4096 * -sign, p_segment[0], p_segment[1], ra, rb);
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}
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float d = ra[p_id / 2] * sign;
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Vector3 he = r_box_size;
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he[p_id / 2] = d * 2;
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if (Node3DEditor::get_singleton()->is_snap_enabled()) {
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he[p_id / 2] = Math::snapped(he[p_id / 2], Node3DEditor::get_singleton()->get_translate_snap());
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}
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Vector3 axis_segment[2] = { Vector3(), Vector3() };
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axis_segment[0][axis] = 4096.0;
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axis_segment[1][axis] = -4096.0;
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Vector3 ra, rb;
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Geometry3D::get_closest_points_between_segments(axis_segment[0], axis_segment[1], p_segment[0], p_segment[1], ra, rb);
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// Calculate new size.
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r_box_size = initial_size;
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if (Input::get_singleton()->is_key_pressed(Key::ALT)) {
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r_box_size[axis] = ra[axis] * sign * 2;
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} else {
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r_box_size[axis] = sign > 0 ? ra[axis] - neg_end : pos_end - ra[axis];
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}
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// Snap to grid.
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if (Node3DEditor::get_singleton()->is_snap_enabled()) {
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r_box_size[axis] = Math::snapped(r_box_size[axis], Node3DEditor::get_singleton()->get_translate_snap());
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}
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r_box_size[axis] = MAX(r_box_size[axis], 0.001);
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// Adjust position.
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if (Input::get_singleton()->is_key_pressed(Key::ALT)) {
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he[p_id / 2] = MAX(he[p_id / 2], 0.001);
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r_box_size = he;
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r_box_position = initial_transform.get_origin();
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} else {
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he[p_id / 2] = MAX(he[p_id / 2], -initial_size[p_id / 2] + 0.002);
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r_box_size = (initial_size + (he - initial_size) * 0.5).abs();
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Vector3 pos = initial_transform.affine_inverse().xform(initial_transform.get_origin());
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pos += (r_box_size - initial_size) * 0.5 * sign;
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r_box_position = initial_transform.xform(pos);
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if (sign > 0) {
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pos_end = neg_end + r_box_size[axis];
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} else {
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neg_end = pos_end - r_box_size[axis];
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}
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Vector3 offset;
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offset[axis] = (pos_end + neg_end) * 0.5;
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r_box_position = initial_transform.xform(offset);
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}
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}
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