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-rw-r--r--src/viewport.cpp13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/viewport.cpp b/src/viewport.cpp
index b53905514..3e1932bf2 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -1578,6 +1578,10 @@ static inline void ClampViewportToMap(const ViewPort *vp, int &x, int &y)
y -= vp->virtual_height / 2;
}
+/**
+ * Update the viewport position being displayed.
+ * @param w %Window owning the viewport.
+ */
void UpdateViewportPosition(Window *w)
{
const ViewPort *vp = w->viewport;
@@ -2037,7 +2041,14 @@ void PlaceObject()
}
-/* scrolls the viewport in a window to a given location */
+/** Scrolls the viewport in a window to a given location.
+ * @param x Desired x location of the map to scroll to (world coordinate).
+ * @param y Desired y location of the map to scroll to (world coordinate).
+ * @param z Desired z location of the map to scroll to (world coordinate). Use \c -1 to scroll to the height of the map at the \a x, \a y location.
+ * @param w %Window containing the viewport.
+ * @param instant Jump to the location instead of slowly moving to it.
+ * @return Destination of the viewport was changed (to activate other actions when the viewport is already at the desired position).
+ */
bool ScrollWindowTo(int x, int y, int z, Window *w, bool instant)
{
/* The slope cannot be acquired outside of the map, so make sure we are always within the map. */