WanderAction

gistfile1.cs

public override ActionResult Execute(RAIN.Core.AI ai)
    {
        if (!WanderTargetVariable.IsVariable)
            throw new Exception("The Choose Wander Position node requires a valid Wander Target Variable");

        float tWanderDistance = 0f;
        if (WanderDistance.IsValid)
            tWanderDistance = WanderDistance.Evaluate<float>(ai.DeltaTime, ai.WorkingMemory);

        if (tWanderDistance <= 0f)
            tWanderDistance = _defaultWanderDistance;

        Vector3 tDirection = new Vector3(UnityEngine.Random.Range(-1f, 1f), 0f, UnityEngine.Random.Range(-1f, 1f));
        tDirection *= tWanderDistance;

        Vector3 tDestination = ai.Kinematic.Position + tDirection;
        if (StayOnGraph.IsValid && (StayOnGraph.Evaluate<bool>(ai.DeltaTime, ai.WorkingMemory)))
        {
            if (NavigationManager.Instance.GraphForPoint(tDestination, ai.Motor.DefaultStepUpHeight, NavigationManager.GraphType.Navmesh, ((BasicNavigator)ai.Navigator).GraphTags).Count == 0)
                return ActionResult.FAILURE;
        }

        ai.WorkingMemory.SetItem<Vector3>(WanderTargetVariable.VariableName, tDestination);

        return ActionResult.SUCCESS;
    }