Hi everyone,

I'm attempting to create a cylinder-shaped barrel that I want to roll around and use physics. I know not to use ph_cylinder, so here is the code that I have set up:

Code:

---

action smallbarrel
{
	while (player == null) {wait (1);}
	phent_settype(my, ph_rigid, ph_poly);
	phent_setmass(my, 0.5, ph_sphere);
	phent_setfriction(my, 80);
	phent_setelasticity(my, 10, 50);
}  

---

Unfortunately, with the code as it is now, the barrel sinks through the floor, even when gravity is set to a low value. This hasn't happened with the other physics objects I've made, so I'm wondering if it could have to do with the model I'm using.

I'm using ph_poly for collision detection because when I use ph_box, the invisible box is way too large for the barrel, and the barrel appears to float in the air.

My questions are:

1. Is there a way to prevent the entity from sinking through the ground while using ph_poly? What could be causing this?

2. If I have to use ph_box (though I'd prefer not to), is there a way to shrink the box's boundries?

Thanks!

Try

phent_setmass(my, 0.5, ph_poly); insteat of

phent_setmass(my, 0.5, ph_sphere);

I've tried all four options--poly, sphere, box, and cylinder, even though cylinder is still not stable. None of them help.

Okay, I think I've gotten it to work. It seems that when you use physics, larger entity models are more accurate with hull structures. I trippled the size of the model in MED and scaled it in WED...I know you aren't supposed to do that, but now they work fine.

Yes, i think its true too. I had some serious problems sometime ago concerning collision detection in 6.40.5 version. I noticed that if i scale up my entities around six times, the collision in physics entities seems to be more accurate. If i remember well, JCL said that this fact will be added to the manual. I dont know if he already done that.

As a matter of fact, PH_CYLINDER works nice with entities, but not with blocks...