diff options
Diffstat (limited to 'src/viewport_type.h')
| -rw-r--r-- | src/viewport_type.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/viewport_type.h b/src/viewport_type.h index 2d986493e..f6a9ce4ae 100644 --- a/src/viewport_type.h +++ b/src/viewport_type.h @@ -53,6 +53,26 @@ struct ViewportSign { void MarkDirty(ZoomLevel maxzoom = ZOOM_LVL_MAX) const; }; +/** Specialised ViewportSign that tracks whether it is valid for entering into a Kdtree */ +struct TrackedViewportSign : ViewportSign { + bool kdtree_valid; ///< Are the sign data valid for use with the _viewport_sign_kdtree? + + /** + * Update the position of the viewport sign. + * Note that this function hides the base class function. + */ + void UpdatePosition(int center, int top, StringID str, StringID str_small = STR_NULL) + { + this->kdtree_valid = true; + this->ViewportSign::UpdatePosition(center, top, str, str_small); + } + + + TrackedViewportSign() : kdtree_valid{ false } + { + } +}; + /** * Directions of zooming. * @see DoZoomInOutWindow |