Function GetScaleBasis

Source/Editors/map_editor.cpp:3035–3053

Returns false if no basis selected

// Returns false if no basis selected
static bool GetScaleBasis(vec3 clicked_point, vec3 clicked_normal,
                          Basis* basis, vec3* p, const Object* object_, const Box& box_, ToolMode tool_mode) {
    const mat4& obj_transform = object_->GetTransform();
    const quaternion& obj_rot = object_->GetRotation();

    int i = box_.GetHitFaceIndex(invert(obj_rot) * clicked_normal, invert(obj_transform) * clicked_point);
    if (i == -1) {
        return false;
    }
    basis->up = obj_rot * Box::GetPlaneTangent(i);
    basis->facing = obj_rot * Box::GetPlaneNormal(i);
    basis->right = obj_rot * Box::GetPlaneBitangent(i);
    if (tool_mode == SCALE_NORMAL) {
        *p = clicked_point;
    } else {
        *p = obj_transform * box_.GetPlanePoint(i);
    }
    return true;
}

static bool GetRotationBasis(vec3 clicked_point, vec3 clicked_normal,
                             Basis* basis, vec3* p, vec3* around,