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I'm curious if anyone has managed to use the PhysicsRayCast() as a mechanism for the steering of (AI) enemies in a purely Physics game (along with SetSpritePhysicsImpulse() perhaps)?

Given the command structure in AppGameKit I don't see any other way it can be done, but if I've overlooked something pls point me int the right direction.

I'm referring to the theoretical steering behaviors referenced here: *Steering Behaviors For Autonomous Characters*
http://www.red3d.com/cwr/steer/

There is also excellent references to this issue in Mat Buckland's book 'Programming Game AI by Example in chapter 3 - Autonomously Moving Game Agents.

Finally, O'Reilly's book AI for Game Developers in Chapter 4 discusses "Flocking" which is also at the heart of this discussion.

Anything anyone can say about the subject would be greatly appreciated.

Many thanks in advance....

I did this using DBPro and the box2d plugin but not yet in AppGameKit although my tank game will require a certain amount of this kind of steering behaviour. I could try to dig out my DBPro code for you but I have a feeling you are purely an AppGameKit user right?

I've gone through the DarkBasicProfessional DVD series and the 2 Volume Book Series From Alistair Stewart so I have some DBPro education. My primary platform is the AppGameKit though ... for deployment on the Android Tablets.

Any help I can get would be appreciated .... I'm developing some ideas on the concept now but they are in their infancy ....

I've just been through my old projects folder and can't see it but I'll try to look again soon or maybe make a quick demo of how I got it working. It's pretty much a case of raycasting two or more rays to test what is in front of the vehicle and turning the vehicle away from any obstacles. I think I used one long distance ray and two shorter rays to check what was to the left and right of the vehicle. I think I also checked for moving vehicles and used their velocity to decide which way to go to avoid them.