public static Dictionary <string, float[]> GetUnitsPerSec(int totalTime)
        {
            Dictionary <string, float[]> unitsPerType = new Dictionary <string, float[]>();

            #region FindTotalUnitsPerType

            Spawner[] totalSpawners = SpawnersToolWindow.GetSpawners();
            // for each group of spawners with the same tag
            foreach (Spawner spawner in totalSpawners)
            {
                // if dictionary has already defined this unit type
                if (unitsPerType.ContainsKey(spawner.GetUnitToSpawn().name))
                {
                    // get this spawner's unit / sec activity
                    float[] unitsPerSec = FindUnitsPerSec(spawner.numberOfUnitsToSpawn, spawner.spawningFrequency, totalTime);
                    for (int time = 0; time < totalTime; time++)
                    {
                        unitsPerType[spawner.GetUnitToSpawn().name][time] += unitsPerSec[time];
                    }
                }
                else
                {
                    unitsPerType.Add(spawner.GetUnitToSpawn().name, FindUnitsPerSec(spawner.numberOfUnitsToSpawn, spawner.spawningFrequency, totalTime));
                }
            }
            #endregion
            return(unitsPerType);
        }