Implement unit action queueing and busy state validation

gamemanager.h

@@ -91,6 +91,7 @@ public:
     void commandBuildCitySelected(Matrix2D<TerrainPoint> *mapPoints, int numPoints05);
     void commandBuildFarmSelected(Matrix2D<TerrainPoint> *mapPoints, int numPoints05);
     void completeUnitBuilding(Unit &unit, Matrix2D<TerrainPoint> *mapPoints, int numPoints05);
+    void processUnitActionQueue(Unit &unit, Matrix2D<TerrainPoint> *mapPoints, int numPoints05);
 
     const std::map<std::pair<int, int>, TileImprovement>& getTileImprovements() const { return m_tileImprovements; }
     const TileImprovement* getImprovementAt(int tx, int ty) const;
@@ -103,6 +104,10 @@ public:
     float getSimSpeed() const { return m_simSpeedMultiplier; }
     void setSimSpeed(float s) { m_simSpeedMultiplier = std::max(0.2f, std::min(10.0f, s)); }
 
+    int getMaxActionQueueSize() const { return m_maxActionQueueSize; }
+    bool isActionQueueingAllowed() const { return m_allowActionQueueing; }
+    bool isAutoQueueMoveWhenBusy() const { return m_autoQueueMoveWhenBusy; }
+
     void addFloatingText(const QString &text, const QVector3D &worldPos, const QColor &color, float duration = 1.8f);
 
     int getNextUnitId() { return ++m_nextUnitId; }
@@ -131,6 +136,10 @@ private:
     float m_tickTimer;
     float m_simSpeedMultiplier; // 1.0x, 2.0x, etc.
 
+    int m_maxActionQueueSize;
+    bool m_autoQueueMoveWhenBusy;
+    bool m_allowActionQueueing;
+
     int m_nextUnitId;
     int m_nextCityId;
     bool m_initialized;