Function GetTranslationBasis

Source/Editors/map_editor.cpp:3008–3032

}

static bool GetTranslationBasis(vec3 clicked_point, vec3 clicked_normal,
                                Basis* basis, const Object* object_, const Box& box_, ToolMode tool_mode) {
    const mat4& obj_transform = object_->GetTransform();
    const quaternion& obj_rot = object_->GetRotation();
    int box_face_index = box_.GetHitFaceIndex(invert(obj_rot) * clicked_normal,
                                              invert(obj_transform) * clicked_point);
    if (box_face_index != -1) {
        switch (tool_mode) {
            case TRANSLATE_FACE_PLANE:
                basis->up = obj_rot * Box::GetPlaneTangent(box_face_index);
                basis->facing = obj_rot * Box::GetPlaneNormal(box_face_index);
                break;
            case TRANSLATE_FACE_NORMAL:
                basis->up = obj_rot * Box::GetPlaneTangent(box_face_index);
                basis->facing = obj_rot * Box::GetPlaneNormal(box_face_index);
                break;
            default:
                return false;  // Tool is incorrect
        }
        basis->right = obj_rot * Box::GetPlaneBitangent(box_face_index);
        return true;
    } else {
        return false;  // Didn't hit any box faces
    }
}

// Returns false if no basis selected
static bool GetScaleBasis(vec3 clicked_point, vec3 clicked_normal,