Hello, I got this wierd problem or bug when I try to drift or wrap my car around, the back wheels turn 90 degrees and if it goes past that it starts spinning and going out of control, I can not figure it out.
Has anyone ever encountered this or anything, I would think it is the joints problem, but Im not sure, Ill just post that code for now, please ask if you want to see something, I cant seem to get it to work.
Code:

---

function createRearLeftWheel ()
{
	rearLeftWheel = my;
	rearLeftWheel.shadow = on;
	rearLeftWheel.pan += 180;
	rearLeftWheel.scale_x = 1.5;
	rearLeftWheel.scale_y = rearLeftWheel.scale_x;
	rearLeftWheel.scale_z = rearLeftWheel.scale_x;
	phent_settype (rearLeftWheel,ph_rigid,ph_sphere);
	phent_setgroup (rearLeftWheel,2);
	phent_setelasticity (rearLeftWheel,1,5);
	phent_setfriction (rearLeftWheel,120);
	phent_setmass (rearLeftWheel,130,ph_poly);
	wheelConn [2] = phcon_add(ph_wheel,player,rearLeftWheel);
	phcon_setparams1(wheelConn [2],rearLeftWheel.x,vector (0,0,1),vector (0,1,0));
	phcon_setparams2(wheelConn [2],nullvector,nullvector,nullvector);
}

function createRearRightWheel ()
{
	rearRightWheel = my;
	rearRightWheel.shadow = on;
	rearRightWheel.scale_x = 1.5;
	rearRightWheel.scale_y = rearRightWheel.scale_x;
	rearRightWheel.scale_z = rearRightWheel.scale_x;
	phent_settype (rearRightWheel,ph_rigid,ph_sphere);
	phent_setgroup (rearRightWheel,2);
	phent_setelasticity (rearRightWheel,1,25);
	phent_setfriction (rearRightWheel,80);
	phent_setmass (rearRightWheel,100,ph_poly);
	wheelConn [3] = phcon_add(ph_wheel,player,rearRightWheel);
	phcon_setparams1(wheelConn [3],rearRightWheel.x,vector (0,0,1),vector (0,1,0));
	phcon_setparams2(wheelConn [3],nullvector,nullvector,nullvector);
}

---

try using ph_sphere instead of ph_poly on the wheels, you limited the hinges to not let it roll it's own axis over, so dont worry about that.

Code:

---

 
phent_setmass (rearLeftWheel,130,ph_sphere);
and in the toher function
phent_setmass (rearRightWheel,100,ph_sphere);
 

---

try it like this.

in my experience with physics (ragdolls, race cars, nascars, anything you can think of, even minigolf) i've found out ph_poly makes on impact objects "explode", i allways try to avoid it, only thing i use it on is my chassis.

regards,

Well, I got rid of ph_poly completely out of my script, thanks for the heads but, but it still seems to do it. What its doing is actully when the front wheels and the body turn the back wheels stay implaced, and dont follow the vehicle, so if the car turned there still facing "straight" its like they grab to much and dont want to turn as fast as the rest of the car? wierd, any pointers?

Heres kinda a crude 10 second picture of what I think its doing.



Once I stop and wait a second or so, they go back to parallel with the body.

Make sure you have the latest update of A6.
Other reasons for sticky wheels could be: high friction, high mass, high damping, high gravity.