public void Decide()
{
// Calculate the sqr to compare to the dot product
float nearSqr = near * near;
List <AttributeValue> values = new List <AttributeValue>();
foreach (var need in needs)
{
var dist = need.target.transform.position - character.transform.position;
// If the need is selected we simple state whether its Near or Far
// If it isn't selected we simply state "No"
values.Add(new AttributeValue(need.inputName,
need.toggle.isOn
? ((dist.sqrMagnitude > nearSqr) ? "Far" : "Near")
: "No"));
}
// Now we use the decision tree to see which of the needs we need to satisfy first
// o In human reasoning thirst and hunger will always take precedence over other needs
// o The distance to satisfy the need is also a factor
// o Please note that in a game context these needs would have their own
// mecanisms such as using energy depletion as an indication of hunger.
DecisionQuery query = new DecisionQuery();
bool decided = false;
StringBuilder builder = new StringBuilder();
foreach (var need in needs)
{
if (!need.toggle.isOn)
{
continue;
}
query.Set(treeName, need.inputName, values.ToArray());
tree.Decide(query);
if (query.Yes)
{
character.target = need.target;
decided = true;
}
builder.AppendLine(tree.PrintDecision(query));
}
// Print the last query
text.text = builder.ToString();
if (!decided)
{
character.target = startPoint;
}
}
public bool?Decide(DecisionQuery query)
{
return(decisionTree.Decide(query));
}
