private void _changePriority(HealerRule obj)
{
if (obj == null)
{
return;
}
ObservableCollection <HealerRule> collection = SpellHealerRules.Any(r => r.Equals(obj)) ? SpellHealerRules : ItemHealerRules;
//fix priority
int max = collection.Count - 1;
if (obj.Priority > max)
{
obj.Priority = max;
}
//finds the item where the priority is the same as current item
HealerRule oldPriorityItem = collection.FirstOrDefault(r => !r.Equals(obj) && r.Priority == obj.Priority);
//checks if the olditem is the last based on priority or if the olditem.Priority is bigger than the currentItem
bool increaseValue = oldPriorityItem?.Priority >= max || collection.Any(r => r.Priority == obj.Priority + 1);
//checks if there
if (oldPriorityItem == null)
{
return;
}
oldPriorityItem.Priority = increaseValue ? obj.Priority - 1 : obj.Priority + 1;
}
private void _deleteRule(HealerRule obj)
{
if (_spellHealerRules.Any(r => r.Equals(obj)))
{
SpellHealerRules.Where(r => r.Priority > obj.Priority).ToList().ForEach(r => r.Priority--);
SpellHealerRules.Remove(obj);
}
else
{
ItemHealerRules.Where(r => r.Priority > obj.Priority).ToList().ForEach(r => r.Priority--);
ItemHealerRules.Remove(obj);
}
}