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Update viewport positions in two stages

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This commit is contained in:
Jonathan G Rennison
2023-09-18 20:25:05 +01:00
parent 96ed5b5cad
commit 290822d150
5 changed files with 39 additions and 18 deletions
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5
src/window_gui.h
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@@ -211,7 +211,7 @@ static const int WHITE_BORDER_DURATION = 3; ///< The initial timeout value for W
* A viewport is either following a vehicle (its id in then in #follow_vehicle), or it aims to display a specific
* location #dest_scrollpos_x, #dest_scrollpos_y (#follow_vehicle is then #INVALID_VEHICLE).
* The actual location being shown is #scrollpos_x, #scrollpos_y.
* @see InitializeViewport(), UpdateViewportPosition(), UpdateViewportCoordinates().
* @see InitializeViewport(), UpdateNextViewportPosition(), ApplyNextViewportPosition(), UpdateViewportCoordinates().
*/
struct ViewportData : Viewport {
VehicleID follow_vehicle; ///< VehicleID to follow if following a vehicle, #INVALID_VEHICLE otherwise.
@@ -219,6 +219,9 @@ struct ViewportData : Viewport {
int32 scrollpos_y; ///< Currently shown y coordinate (virtual screen coordinate of topleft corner of the viewport).
int32 dest_scrollpos_x; ///< Current destination x coordinate to display (virtual screen coordinate of topleft corner of the viewport).
int32 dest_scrollpos_y; ///< Current destination y coordinate to display (virtual screen coordinate of topleft corner of the viewport).
int32 next_scrollpos_x; ///< Next x coordinate to display (virtual screen coordinate of topleft corner of the viewport).
int32 next_scrollpos_y; ///< Next y coordinate to display (virtual screen coordinate of topleft corner of the viewport).
bool force_update_overlay_pending; ///< Forced overlay update is pending (see SetViewportPosition)
};
struct QueryString;