Exemple #1
0
        private void UpdateAI()
        {
            // exceptions
            if (_actualAction == AIAction.Attack && _life < 0.5f || _actualAction == AIAction.Attack && _isShootAt)
            {
                SetFree();
            }

            if (_isOccupied && _actualAction != AIAction.Wander)
            {
                return;
            }

            List <double> inputs = new List <double>();

            // target distance and elevation difference factors
            if (_target == null)
            {
                inputs.Add(0.0);
            }
            else
            {
                inputs.Add(AIUtils.Clamp(1 - _targetDistance / _sightRange + Position.Y / _target.Position.Y / 200));
            }
            // cover
            inputs.Add(_inCover ? 1.0 : AIUtils.Clamp(1 - (GetNearestAvailableStatic(AIStaticType.Cover).Position - Position).Length() / _sightRange));
            // bonus
            inputs.Add(AIUtils.Clamp(1 - (GetNearestAvailableStatic(AIStaticType.Bonus).Position - Position).Length() / _sightRange));
            // med
            inputs.Add(AIUtils.Clamp(1 - (GetNearestAvailableStatic(AIStaticType.FirstAidKit).Position - Position).Length() / _sightRange));
            // life
            inputs.Add((1 - _life));
            // experience
            inputs.Add(_experience / 100);
            // speed
            //inputs.Add(MovementSpeed / Settings.OBJECTS_MOVEMENT_SPEED);
            // is shoot at
            inputs.Add(_isShootAt ? 1.0 : 0.0);

            List <double> output = _aiNeuralBrain.Update(inputs);

            if (output.Count < AIParams.NumOutputs)
            {
                throw new Exception("Brain mulfunction for " + this.Identifier + "!");
            }

            switch (RangeIndex(output[0], 5))
            {
            case 0:
                if (_target != null)
                {
                    Attack(_target);
                    _actionCounter[AIAction.Attack]++;
                    Status = AIMovementStatus.Run;
                }
                else
                {
                    PickUpBonus();
                    _actionCounter[AIAction.PUBonus]++;
                    Status = AIMovementStatus.Run;
                }
                break;

            case 1:
                PickUpBonus();
                _actionCounter[AIAction.PUBonus]++;
                Status = AIMovementStatus.Run;
                break;

            case 2:
                Wander();
                _actionCounter[AIAction.Wander]++;
                Status = AIMovementStatus.Walk;
                break;

            case 3:
                TakeCover();
                _actionCounter[AIAction.TakeCover]++;
                Status = AIMovementStatus.Run;
                break;

            case 4:
                PickUpMedKit();
                _actionCounter[AIAction.PUMed]++;
                Status = AIMovementStatus.Run;
                break;

            default:
                throw new Exception("Not valid number of ANN outputs!");
            }
            #region Old calculations with 5 outputs
            ////assign the outputs to the aiobject physics
            //double max = double.MinValue;
            //int max_index = 0;
            //for (int i = 0; i < output.Count; i++)
            //{
            //    if (output[i] > max)
            //    {
            //        max = output[i];
            //        max_index = i;
            //    }
            //}

            //switch (max_index)
            //{
            //    case 0:
            //        if (_target != null)
            //        {
            //            Attack(_target);
            //            _actionCounter[AIAction.Attack]++;
            //            Status = AIMovementStatus.Run;
            //        }
            //        else
            //        {
            //            PickUpBonus();
            //            _actionCounter[AIAction.PickUpBonus]++;
            //            Status = AIMovementStatus.Run;
            //        }
            //        break;
            //    case 1:
            //        TakeCover();
            //        _actionCounter[AIAction.TakeCover]++;

            //        Status = AIMovementStatus.Run;
            //        break;
            //    case 2:
            //        PickUpMedKit();
            //        _actionCounter[AIAction.PickUpMed]++;
            //        Status = AIMovementStatus.Run;
            //        break;
            //    case 3:
            //        Wander();
            //        _actionCounter[AIAction.Wander]++;
            //        Status = AIMovementStatus.Walk;
            //        break;
            //    default:
            //        throw new Exception("Wrong number of outputs from ANN!");
            //        //Wander();
            //        //_actionCounter[AIAction.Wander]++;
            //        //Status = AIMovementStatus.Walk;
            //        //SetFree();
            //        break;
            //}
            #endregion
        }