fix(ui): Draw distance to the selected system after mission markers (e…

…ndless-sky#10003)

source/MapPanel.cpp

@@ -319,13 +319,15 @@ void MapPanel::Draw()
 	DrawSystems();
 	DrawNames();
 	DrawMissions();
-	DrawSelectedSystem();
 }
 
 
 
 void MapPanel::FinishDrawing(const string &buttonCondition)
 {
+	// Display the name of and distance to the selected system.
+	DrawSelectedSystem();
+
 	// Draw the buttons to switch to other map modes.
 
 	// Remember which buttons we're showing.
@@ -1210,7 +1212,7 @@ void MapPanel::DrawTravelPlan()
 
 
 
-// Fill in the top-middle header bar that names the selected system, and indicates its distance.
+// Display the name of and distance to the selected system.
 void MapPanel::DrawSelectedSystem()
 {
 	const Sprite *sprite = SpriteSet::Get("ui/selected system");

source/MapPanel.h

@@ -75,7 +75,9 @@ class MapPanel : public Panel {
 	virtual void Step() override;
 	virtual void Draw() override;
 
-	// Draw map mode buttons, escort/storage tooltips, and the non-routable system warning.
+	// Draw elements common for all map panels that need to be placed
+	// on top of everything else. This includes distance info, map mode buttons,
+	// escort/storage tooltips, and the non-routable system warning.
 	void FinishDrawing(const std::string &buttonCondition);
 
 	static void DrawMiniMap(const PlayerInfo &player, float alpha, const System *const jump[2], int step);