// determine which enhanced map tiles are active (within range of the camera)
// if enhanced map tile is currently active and was also active last frame, nothing special happens and enhanced map tile is included in active list
// if enhanced map tile is currently active but last frame was inactive, it will have its status set to active and enhanced map tile is included in active list
// if enhanced map tile is currently inactive but last frame was active, it will have its status set to inactive, have its initialize method called if its respawnable
// (which will set it back up to its default state), and not include it in the active list
// next time a respawnable enemy is determined active, since it was reset back to default state upon going inactive, it will essentially be "respawned" in its starting state
// if enhanced map tile is currently set to REMOVED, it is permanently removed from the map's list of enemies and will never be able to be active again
private List <EnhancedMapTile> LoadActiveEnhancedMapTiles()
{
List <EnhancedMapTile> activeEnhancedMapTiles = new List <EnhancedMapTile>();
for (int i = map.GetEnhancedMapTiles().Count - 1; i >= 0; i--)
{
EnhancedMapTile enhancedMapTile = map.GetEnhancedMapTiles()[i];
if (IsMapEntityActive(enhancedMapTile))
{
activeEnhancedMapTiles.Add(enhancedMapTile);
if (enhancedMapTile.MapEntityStatus == MapEntityStatus.INACTIVE)
{
enhancedMapTile.MapEntityStatus = MapEntityStatus.ACTIVE;
}
}
else if (enhancedMapTile.MapEntityStatus == MapEntityStatus.ACTIVE)
{
enhancedMapTile.MapEntityStatus = MapEntityStatus.INACTIVE;
if (enhancedMapTile.IsRespawnable)
{
enhancedMapTile.Initialize();
}
}
else if (enhancedMapTile.MapEntityStatus == MapEntityStatus.REMOVED)
{
map.GetEnhancedMapTiles().RemoveAt(i);
}
}
return(activeEnhancedMapTiles);
}
// add an enhanced map tile to the map's list of enhanced map tiles
public void AddEnhancedMapTile(EnhancedMapTile enhancedMapTile)
{
enhancedMapTile.SetMap(this);
this.enhancedMapTiles.Add(enhancedMapTile);
}