coordinate system fix and build fix

src/ui/GameWorldView.cpp

@@ -1,6 +1,7 @@
 #include "GameWorldView.h"
 
 #include <algorithm>
+#include <cctype>
 #include <cmath>
 #include <map>
 #include <string>
@@ -162,7 +163,7 @@ void GameWorldView::onFrame()
             }
             else
             {
-                toast.text = shipName + " production level \u2192 "
+                toast.text = shipName + " production level -> "
                     + QString::number(ev.newLevel);
             }
             toast.createdWallMs = m_wallMs;
@@ -225,7 +226,6 @@ void GameWorldView::paintGL()
 {
     QPainter painter(this);
     painter.setRenderHint(QPainter::Antialiasing, false);
-    painter.translate(-static_cast<qreal>(m_scrollXTiles) * static_cast<qreal>(tilePx()), 0.0);
 
     drawTiles(painter);
     drawBuildings(painter);

src/ui/SelectedBuildingPanel.cpp

@@ -1,5 +1,6 @@
 #include "SelectedBuildingPanel.h"
 
+#include <cctype>
 #include <map>
 #include <string>
 
@@ -9,6 +10,7 @@
 #include <QVBoxLayout>
 
 #include "Building.h"
+#include "BuildingSystem.h"
 #include "BuildingType.h"
 #include "Simulation.h"