/// <summary>
/// Chooses a living target. Final Target (destiny) is set by a child class of Unit
/// Each Unit decides what is your preferred final target
/// </summary>
public virtual void chooseTarget(Node _finalTargetNode = null)
{
//set the final target
finalTarget = _finalTargetNode;
//remove unit from previous and current cells
if (previousTarget != null)
{
previousTarget.GetComponent <Cell>().removeWalkingUnit(this);
}
if (currentTarget != null)
{
currentTarget.GetComponent <Cell>().removeWalkingUnit(this);
}
//go back to previous target
currentTarget = previousTarget;
//source cell
Node sourceCell = CurrentTarget == null ? OriginSpawnedCell : CurrentTarget;
//----
//get the path
currentNodeIndex = 0; //restart a new path
path = PathFinding.BFS(GridGenerator.instance.Grid, sourceCell, FinalTarget, GridGenerator.instance.Width, GridGenerator.instance.Height);
noTarget = path.Count == 0;
setNextTarget(); //get next target cell to go
//----
}