social_learning.World.calculatePredatorSensors C# (CSharp) Method

        public double[] calculatePredatorSensors(Predator predator)
        {
            // Agents are sensed by predators, plus they have 1 velocity sensor
            double[] sensors = new double[SENSORS_PER_OBJECT_TYPE + 1];

            sensors[0] = predator.Velocity / predator.MaxVelocity;

            // For every plant
            foreach (var agent in Agents)
            {
                // if the plant isn't available for eating then we do not activate the sensors
                if (agent.HidingMode == predator.AttackType)
                    continue;

                // Calculate the distance to the pred from the predator
                int[] distanceAndOrientation = _sensorDictionary.getDistanceAndOrientation((int)predator.X, (int)predator.Y, (int)agent.X, (int)agent.Y);
                int dist = distanceAndOrientation[0];
                int pos = distanceAndOrientation[1];

                // If it's too far away for the predator to see
                if (dist > AgentHorizon)
                    continue;

                // Identify the appropriate sensor
                int sIdx = getSensorIndex(predator, 1, pos);

                if (sIdx == -1)
                    continue;

                // Add the signal strength for this plant to the sensor
                sensors[sIdx] += 1.0 - dist / AgentHorizon;
            }

            return sensors;
        }