private bool IsInActiveRange(Position ObjectPos, Position Pos)
{
if (Position.Distance(ObjectPos, Pos) < maxActiveDistance)
{
return(true);
}
else
{
return(false);
}
}
private void RebuildObjects(Position Pos, int Width, int Height)
{
//Ceiling all the ranges for the sake of consistency
Width = (int)Math.Ceiling(Width / 2.0);
Height = (int)Math.Ceiling(Height / 2.0);
lastCheckPosition = Pos;
visibleObjects.Clear();
//This rebuilds the entire active objects list in one pass.
//If there is only 1 active object and this is being called (this happens when you move the player to a grid, as all active objects
//get deactivated when you move off a grid) then rebuild the entire thing immediately.
//Alternatively if the player has moved too far from their previous position AND the batch updating hasn't finished yet, do it all
//in one go instead. Lags a bit more but avoids a pop-in effect of gameobjects being reactivated on screen.
if (activeObjects.Count <= 1 || Position.Distance(Pos, lastObjectCheckPos) > fullRecheckActiveObjectsdistance)
{
foreach (GameObject go in activeObjects)
{
go.Active = false;
}
activeObjects.Clear();
lastObjectCheckPos = Pos;
BatchObjects.Clear();
CurrentBatchRebuild = 0;
BatchComplete = false;
foreach (GameObject go in gameObjects)
{
if (IsInActiveRange(go.Position, Pos))
{
activeObjects.Add(go);
go.Active = true;
if (IsInVisibleRange(go.Position, Pos, Width, Height))
{
visibleObjects.Add(go);
}
}
}
}
else if (Position.Distance(Pos, lastObjectCheckPos) > recheckActiveObjectsDistance)
{
for (int i = 0; i <= BatchSize; i++)
{
if (i + CurrentBatchRebuild >= gameObjects.Count)
{
BatchComplete = true;
break;
}
if (gameObjects[i + CurrentBatchRebuild] != null)
{
if (IsInActiveRange(gameObjects[i + CurrentBatchRebuild].Position, Pos))
{
BatchObjects.Add(gameObjects[i + CurrentBatchRebuild]);
}
}
if (i >= BatchSize)
{
CurrentBatchRebuild = i + CurrentBatchRebuild;
}
}
if (BatchComplete)
{
activeObjects.Clear();
foreach (GameObject go in BatchObjects)
{
activeObjects.Add(go);
}
lastObjectCheckPos = Pos;
BatchObjects.Clear();
CurrentBatchRebuild = 0;
BatchComplete = false;
}
foreach (GameObject go in activeObjects)
{
if (IsInVisibleRange(go.Position, Pos, Width, Height))
{
visibleObjects.Add(go);
}
}
}
else
{
foreach (GameObject go in activeObjects)
{
if (IsInVisibleRange(go.Position, Pos, Width, Height))
{
visibleObjects.Add(go);
}
}
}
}