This is the first time I use the physic engine (commercial = 1 object). The goal is that the player cuts a tree, and then the physic engine let the tree fall to the ground. The ground itself is a model, too.



The cutting itself is not the problem. It works fine. After cutting, the tree morphs to a stump and the stump creates the cuttet tree above it. So we have two objects, the stump and the cuttet tree. Now the physic engine takes control over the cutted tree part.

Code:

---

var[3] erdanziehung = 0, 0, -368;

function cutted_tree()
{
    my.polygon = on;
	
    phent_settype(my, ph_rigid, ph_poly);
    phent_setmass(my, 10, ph_poly);
    phent_setdamping(my, 0, 0);
    phent_setgroup(my, 1);
    ph_setgravity(erdanziehung);
    ph_selectgroup(1);
}

---

The problem I have is that the physicobject jumps wild through the area and then dissapears. It is not really gone, but I don't know where it is. I have set the mass to more and to less than 10, and I already modified the gravity to more and less than -368. These actions didn't solve the problem.

Any suggestions?

Hi!

Will be a rubber tree !

Look at phent_setdamping(my, 0, 0) in the manual.
The second and last parameter sets the damping (0..100).

DE: phent_setdamping: Parameter 2 und 3 sind für die Reibung zuständig.

mercuryus

Maybe you should change the topic of your game: CATCH THE RUBBERTREE!!!

ph_settype "cylinder-hulltype" don't work. Only poly and box work.
Try to keep the polycount low. (Or hull the tree in a invisible lowpoly-model, animate this one and connect the origin tree by application)

Try phent_setelasticity ( entity, var bounciness, var minimumSpeed );
It is responsible for the bounciness. See manual for more details...


EDIT: Have you attached a script (action) to the tree?
Would you show it? - The distance/speed in the video is very strange!


mercuryus

Thank you again. I'll test that and write again, if I have more problems.

maybe you need to place the upper part a little more away from the stump? if both objects are touching when you initiate the physics it will behave like you described

That may a reason, too.