Unity 2018 Artificial Intelligence Cookbook - Second Edition

How to do it...

We will just implement a new file:

1. Create the class for handling vision:

using UnityEngine; 
using System.Collections; 
using System.Collections.Generic; 
 
public class VisorGraph : MonoBehaviour 
{ 
    public int visionReach; 
    public GameObject visorObj; 
    public Graph visionGraph; 
} 

2. Validate the visor object in case the component is not attached:

void Start() 
{ 
    if (visorObj == null) 
        visorObj = gameObject; 
} 

3. Define and start building the function for detecting the visibility of a given set of nodes:

public bool IsVisible(int[] visibilityNodes) { int vision = visionReach; int src = visionGraph.GetNearestVertex(visorObj); HashSet<int> visibleNodes = new HashSet<int>(); Queue<int> queue = new Queue<int>(); queue.Enqueue(src); } ...