hi,
im trying to make a toy petrol remote car with the engine phyiscs feature
i have pro.
ive connected the wheels to the body with vec_for_vertex and phcon_add(ph_wheel...)
but still when the car touce the ground all gets massed up...
what its wrong?
here is the code:

Code:

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 function fright_wheel()
{
   my.x -= 10;
   phent_settype(my,ph_rigid,ph_sphere);
	phent_setgroup(my,2);
	phent_setmass(my,wheelmass,ph_sphere);
	phent_setfriction(my,120);
	phent_setdamping(my,20,20);
	//phent_setelasticity(my,70,5);
   fr_id = phcon_add(ph_wheel,my,rcc);
   phcon_setparams1(fr_id,my.x,vector(0,0,1),vector(0,1,0));
   phcon_setparams2(fr_id,vector(-40,40,0),nullvector,vector(0,0,0));

}

function fleft_wheel()
{
	my.pan += 180;
   my.x += 10;
   phent_settype(my,ph_rigid,ph_sphere);
	phent_setgroup(my,2);
	phent_setmass(my,wheelmass,ph_sphere);
	phent_setfriction(my,120);
	phent_setdamping(my,20,20);
	//phent_setelasticity(my,70,5);
   fl_id = phcon_add(ph_wheel,my,rcc);
   phcon_setparams1(fl_id,my.x,vector(0,0,1),vector(1,0,0));
   phcon_setparams2(fl_id,vector(-45,90,0),nullvector,vector(90000,100,0));

}

function bright_wheel()
{
	
   my.x -= 10;
   phent_settype(my,ph_rigid,ph_sphere);
	phent_setgroup(my,2);
	phent_setmass(my,wheelmass,ph_sphere);
	phent_setfriction(my,120);
	phent_setdamping(my,20,20);
	//phent_setelasticity(my,70,5);
   br_id = phcon_add(ph_wheel,my,rcc);
   phcon_setparams1(br_id,my.x,vector(0,0,1),vector(1,0,0));
   phcon_setparams2(br_id,vector(-45,90,0),nullvector,vector(90000,100,0));

}

function bleft_wheel()
{
	my.pan += 180;
   my.x += 10;
   phent_settype(my,ph_rigid,ph_sphere);
	phent_setgroup(my,2);
	phent_setmass(my,wheelmass,ph_sphere);
	phent_setfriction(my,120);
	phent_setdamping(my,20,20);
	//phent_setelasticity(my,70,5);
   bl_id = phcon_add(ph_wheel,my,rcc);
   phcon_setparams1(bl_id,my.x,vector(0,0,1),vector(1,0,0));
   phcon_setparams2(bl_id,vector(-45,90,0),nullvector,vector(90000,100,0));
}

function create_body()
{
   var grav[3] = 0,0,-380;
	var rccmass = 4;
   // my.passable = on;
   ph_setgravity(grav);
	ph_setcorrections(30000,0.05); 
	phent_settype(my,ph_rigid,ph_poly);
	phent_setgroup(my,2);
	phent_setmass(my,rccmass,ph_poly);
	phent_setfriction(my,100);
	phent_setdamping(my,20,20);
	//phent_setelasticity(my,40,5);
		
	vec_for_vertex(flpos,my,flvex);
	vec_for_vertex(frpos,my,frvex);
	vec_for_vertex(blpos,my,blvex);
	vec_for_vertex(brpos,my,brvex);

	att_wheels();
}

function att_wheels()
{
	fl_wheel = ent_create(tiremdl,flpos,fleft_wheel);
	fr_wheel = ent_create(tiremdl,frpos,fright_wheel);
	bl_wheel = ent_create(tiremdl,blpos,bleft_wheel);
	br_wheel = ent_create(tiremdl,brpos,bright_wheel);
} 

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