public void UpdateEntity(GridEntity2D entity)
{
var prevCell = lastPositions.ContainsKey(entity) ? lastPositions[entity] : Outside;
var curCell = PositionInGrid(entity.transform.position);
if (prevCell.Equals(curCell))
{
return;
}
//Entity was previously inside the grid and it will move from there
if (InsideGrid(prevCell))
{
buckets[prevCell.x, prevCell.y].Remove(entity);
}
//Entity is now inside the grid, and just moved from prev cell, add it to the new cell
if (InsideGrid(curCell))
{
buckets[curCell.x, curCell.y].Add(entity);
lastPositions[entity] = curCell;
}
else
{
lastPositions.Remove(entity);
}
}
public void RemoveEntity(GridEntity2D entity)
{
var prevCell = lastPositions.ContainsKey(entity) ? lastPositions[entity] : Outside;
if (InsideGrid(prevCell))
{
buckets[prevCell.x, prevCell.y].Remove(entity);
}
entity.OnMove -= UpdateEntity;
}
public void AddEntity(GridEntity2D entity)
{
entity.OnMove += UpdateEntity;
UpdateEntity(entity);
}
