Unreal Engine 4 AI Programming Essentials by Unknown

Author:Unknown
Language: eng
Format: epub, mobi
Publisher: Packt Publishing

The screen should look like the following screenshot:

State transitions

What we will do here is randomly increment our state forward. This simply demonstrates the state transition. This operation is important because how you handle transitions can create virtually coherent AI. This is established when you have goal-oriented AI. Instead of being purely reactive, it actively chooses the best scored state to achieve said goal. This makes it seem as though AI has a level of intelligence.

Our AI randomly chooses its next state, but if the AI could make its new state decision based on the information we collected, it would make our AI appear intelligent. These examples will provide you with the knowledge to take on more challenging projects:

Looking back at Event Receive Activation, let's pull Get AIController from Owner Actor. Then, we want to pull Get Controlled Pawn in order to assign the Event Dispatcher node we created earlier.

Cast the Get Controlled Pawn node to ThirdPersonCharacter, and from the cast, assign MailmanFound.

We also want to take Owner Actor and set it in our thisPawn variable. Lastly, we should update our pawn's Sphere variable to match our variable node's Radius, which we want to check for:

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