public void Extend(Box box)
{
X1 = Math.Min(X1, box.X1);
X2 = Math.Max(X2, box.X2);
Y1 = Math.Min(Y1, box.Y1);
Y2 = Math.Max(Y2, box.Y2);
Z1 = Math.Min(Z1, box.Z1);
Z2 = Math.Max(Z2, box.Z2);
}
public bool TryExtend(Box box)
{
if (Area.Contains(box))
return true;
// New area has to be within 1 tile
var testBox = Area;
testBox.Extend(1);
if (!testBox.Contains(Area))
return false;
var newBox = Area;
newBox.Extend(box);
if (newBox.Size - Area.Size > 2)
return false;
Area = newBox;
return true;
}
public bool Contains(Box box)
{
return box.X1 >= X1 && box.X2 <= X2 &&
box.Y1 >= Y1 && box.Y2 <= Y2 &&
box.Z1 >= Z1 && box.Z2 <= Z2;
}
public void ScheduleUpdate(LightType type, Box area)
{
int centerX = (area.X1 + area.X2) / 2;
int centerY = (area.Y1 + area.Y2) / 2;
if (!world.IsLoaded(centerX, centerY))
return;
// Try to merge this update in one of the more recent updates
int checkUpdates = 4;
foreach(var update in scheduledUpdates) {
if (checkUpdates <= 0)
break;
checkUpdates--;
if (update.Type == type && update.TryExtend(area))
return;
}
var newUpdate = new LightingUpdate(this);
newUpdate.Area = area;
newUpdate.Type = type;
scheduledUpdates.AddFirst(newUpdate);
}