public void CopyFrom(ComponentMask mask)
{
BitsCount = mask.BitsCount;
if (Bits.Length < BitsCount)
{
Bits = new int[mask.Bits.Length];
}
Array.Copy(mask.Bits, 0, Bits, 0, BitsCount);
}
public bool IsIntersects(ComponentMask mask)
{
if (BitsCount > 0 && mask.BitsCount > 0)
{
for (var i = 0; i < BitsCount; i++)
{
var bit = Bits[i];
for (var j = 0; j < mask.BitsCount; j++)
{
if (mask.Bits[j] == bit)
{
return(true);
}
}
}
}
return(false);
}
protected void UpdateFilters(int entity, int entityTypeIndex, ComponentMask oldMask, ComponentMask newMask)
{
for (int i = 0, iMax = _filtersCount; i < iMax; i++)
{
var filter = _filters[i];
if (!filter.IsEntityTypeCompatible(entityTypeIndex))
{
continue;
}
var isNewMaskCompatible = newMask.IsCompatible(filter);
if (oldMask.IsCompatible(filter))
{
if (!isNewMaskCompatible)
{
#if DEBUG
var ii = filter._entitiesCount - 1;
for (; ii >= 0; ii--)
{
if (filter.Entities[ii] == entity)
{
break;
}
}
if (ii == -1)
{
throw new Exception(string.Format("Something wrong - entity {0} should be in filter {1}, but not exits.", entity, filter));
}
#endif
filter.RaiseOnRemoveEvent(entity);
}
}
else
{
if (isNewMaskCompatible)
{
filter.RaiseOnAddEvent(entity);
}
}
}
}
internal bool IsEquals(ComponentMask mask)
{
if (BitsCount != mask.BitsCount)
{
return(false);
}
for (var i = 0; i < BitsCount; i++)
{
var j = mask.BitsCount - 1;
var bit = Bits[i];
for (; j >= 0; j--)
{
if (mask.Bits[j] == bit)
{
break;
}
}
if (j == -1)
{
return(false);
}
}
return(true);
}
