Implementing wall avoidance

The AI characters will look a little odd if they collide with a wall while wandering. So, we have to make them even more intelligent so that they can seek the wall and can respond or change direction accordingly.

The wander behavior returns a force that steers the AI away from the wall to avoid collision.

Getting ready

The following approach will be used to implement the wall avoidance behavior:

• Create feelers to sense the wall

• We will use one feeler in front of the AI to sense the wall

• When wall is detected, apply the force at the reflected vector

How to do it

Follow the following algorithm to achieve the wall avoidance behavior in the project:

1. The visual explanation of the technique is shown in the following screenshot:

   

2. Create feelers that will sense the wall:

   Front_Feeler = player->Get velocity; // vector
   Front_Feeler = Front_Feeler.normalize(); // vector

   This will project the feeler in front of the player.

   Front_Feeler =  Front_Feeler *  FeelerLength; // vector
   Front_Feeler...