code:

---

function emit_sphere();

action sphere
{
	my.shadow=on;
	
	phent_settype(my, PH_RIGID, PH_SPHERE);
	phent_setmass(my, 5, PH_SPHERE);
	phent_setfriction(my, 70);
	phent_setelasticity(my, 50, 10);
	phent_setdamping(my, 20, 20 );
	
	temp.x=cos(camera.pan)*cos(camera.tilt)*300000;
	temp.y=sin(camera.pan)*cos(camera.tilt)*300000;
	temp.z=sin(camera.tilt)*300000;
	phent_addforcelocal(my,temp,nullvector);

        on_mouse_left=null;
        sleep(5);
        on_mouse_left=emit_sphere;
        ent_remove(my);
}
 
string mdl_sphere=<sphere_0.mdl>;
function emit_sphere()
{
	temp.x=camera.x+cos(camera.pan)*cos(camera.tilt)*100;
	temp.y=camera.y+sin(camera.pan)*cos(camera.tilt)*100;
	temp.z=camera.z+sin(camera.tilt)*100;
	ent_create(mdl_sphere,temp,sphere);	
}

on_mouse_left=emit_sphere;

---

i am also not really good in programming. i just do trial and error all the time!

code:

---

var FR_wheel_ID;
var FL_wheel_ID;
var RL_wheel_ID;
var RR_wheel_ID;

action FR_tyre
{
	my.shadow=on;
	
	phent_settype(my, PH_RIGID, PH_SPHERE);
	phent_setgroup(my,2);
	phent_setmass(my, 5, PH_SPHERE);
	phent_setfriction(my, 70);
	phent_setelasticity(my, 50, 10);
	phent_setdamping(my, 20, 20 );
	
	FR_wheel_ID=phcon_add(PH_WHEEL,my,p_player);
	phcon_setparams1(FR_wheel_ID, my.x, vector(0,0,1),vector(0,1,0));
	phcon_setparams2(FR_wheel_ID, vector(35,-35,0),vector(-360,360,0),vector(0.9,0.001,0));
}

action FL_tyre
{
	my.shadow=on;
	my.pan=180;

	phent_settype(my, PH_RIGID, PH_SPHERE);
	phent_setgroup(my,2);
	phent_setmass(my, 5, PH_SPHERE);
	phent_setfriction(my, 70);
	phent_setelasticity(my, 50, 10);
	phent_setdamping(my, 20, 20 );
	
	FL_wheel_ID=phcon_add(PH_WHEEL,my,p_player);
	phcon_setparams1(FL_wheel_ID, my.x, vector(0,0,1),vector(0,1,0));
	phcon_setparams2(FL_wheel_ID, vector(35,-35,0),vector(-360,360,0),vector(0.9,0.001,0));
}

action RL_tyre
{
	my.shadow=on;
	my.pan=180;
	
	phent_settype(my, PH_RIGID, PH_SPHERE);
	phent_setgroup(my,2);
	phent_setmass(my, 5, PH_SPHERE);
	phent_setfriction(my, 70);
	phent_setelasticity(my, 50, 10);
	phent_setdamping(my, 20, 20 );
	
	RL_wheel_ID=phcon_add(PH_WHEEL,my,p_player);
	phcon_setparams1(RL_wheel_ID, my.x, vector(0,0,1),vector(0,1,0));
	phcon_setparams2(RL_wheel_ID, vector(0,0,0),vector(-360,360,0),vector(0.9,0.001,0));
}

action RR_tyre
{
	my.shadow=on;
	
	phent_settype(my, PH_RIGID, PH_SPHERE);
	phent_setgroup(my,2);
	phent_setmass(my, 5, PH_SPHERE);
	phent_setfriction(my, 70);
	phent_setelasticity(my, 50, 10);
	phent_setdamping(my, 20, 20 );
	
	RR_wheel_ID=phcon_add(PH_WHEEL,my,p_player);
	phcon_setparams1(RR_wheel_ID, my.x, vector(0,0,1),vector(0,1,0));
	phcon_setparams2(RR_wheel_ID, vector(0,0,0),vector(-360,360,0),vector(0.9,0.001,0));
}

action car
{
	p_player=my;
	wait(1);
	my.shadow=on;
	my.material=mat_metal;
	
	phent_settype(my,PH_RIGID,PH_BOX);
	phent_setgroup(my,2);
	phent_setmass(my,40,PH_BOX);
	phent_setfriction(my,50);
	phent_setelasticity(my,50,10);
	phent_setdamping(my,20,20);
	
	vec_for_vertex(temp,my,306);
	ent_create(mdl_tyre,temp,FR_tyre);
	
	vec_for_vertex(temp,my,36);
	ent_create(mdl_tyre,temp,FL_tyre);
	
	vec_for_vertex(temp,my,5);
	ent_create(mdl_tyre,temp,RL_tyre);
	
	vec_for_vertex(temp,my,304);
	ent_create(mdl_tyre,temp,RR_tyre);	
}

---