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Originally posted by ventilator:
is PH_CYLINDER already implemented as collision hull? i saw it in the manual under physics constants but it isn't listed under collision hulls and it didn't seem to work when i tried to use it.

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PH_CYLINDER can be used for testing purposes- it is not officially implemented. The part that is missing (and I would need to double-check that) is Cylinder to Mesh collisions. So if you create a box or sphere entity and set another one to cylinder, they should collide. Because the level is a mesh though, cylinders will fall straight through it.

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i would like to set up a car with realistic physics. i know i have to attach the wheels to the chassis per constraints (probably with the PH_WHEEL constraint?).

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quote:

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Originally posted by Fredmaster:
Would it be possible to use the physics engine for a car or other complex/multiple-part object using the one object physics in commercial edition?

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Because the level is a mesh though, cylinders will fall straight through it.

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that's exactly what i experienced. so i have to use PH_SPHERE instead of it for the wheels of my car. should work too...

if i want the car to go around a curve, do i just need to turn the front wheels? or do i need to apply torque/motor (front wheel drive) so that they "pull" the car around the corner?

...
the physics engine is really cool! in my experiments i had over 200 active physics entities and didn't have any jerks or any noticeable framerate drop. i didn't expect that!

quote:

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P.S. @Ventilator: How did you get your update to A6 already?

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ordered yesterday, got it today!

code:

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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);
}
 
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;

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it emits spheres from the camera position!