Function GetRotationBasis

Source/Editors/map_editor.cpp:3055–3070

}

static bool GetRotationBasis(vec3 clicked_point, vec3 clicked_normal,
                             Basis* basis, vec3* p, vec3* around,
                             const Object* object_, const Box& box_) {
    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);
    *around = Box::GetPlaneNormal(i);
    *p = obj_transform * box_.GetPlanePoint(i);
    return true;
}

static vec3 GetTranslation(const LineSegment& mouseray, bool snapping_enabled, const vec3& cam_moved, const ControlEditorInfo* control_editor_info, Tool* tool_, Object* object_) {
    static const float TRANSLATION_SNAP_INCR = 0.50f;  // percent of dimension in direction of movement