Hi all,

I want to make mesh deforming to my car (damage). My car will get damage from other physics objects /cars/, map entities, models. I don't know how to find collision points /nearest vertex numbers from collision point/.

Please help me ?

Olzii

Use EVENT_FRICTION to receive contact information. Hitpoint is in TARGET and the normal vector is in NORMAL. You could then use trace to query the closest vertex.

Hi Marco,

Thanks for replying. I have following questions :

1. I am using EVENT_FRICTION to receive contac infos. I have searched nearest vertex number from TARGET.X in object which receives damage. After i have found nearest vertex, did mesh deforming at this vertex. But it is working wrong. I want to damage my model at collision point.

2. EVENT_FRICTION is working OK with physics entity and non-physics entity. But it is not working when two physics entities collide.

Olzii

What do you mean by it is not working ?

It is not working. This means that i am finding nearest vertex from TARGET and damaging it, but it doesnot damage at right position. For example my car has received impact at front and damage is somewhere else /back side, left or right side/.

Here is my code :

function car_event
{ var i=0; var k=0; var tttt[3];
var min_val=500; var min_i;
if(event_type == event_friction)
{
while (i < ent_vertices (my))
{ vec_for_vertex(tttt,my,i);
k=vec_dist(tttt,you.x);
//k=vec_dist(tttt,target.x);
if(k<min_val) {min_val=k; min_i=i;}
i+=1;
}
vec_for_mesh(temp,my,min_i);
vec_scale(temp,0.9);
vec_to_mesh(temp,my,min_i);
ent_fixnormals(my,0);
}
}

The you.x part does not make sense, but I've got the code working like this:
Code:

---

var i=0; var k=0; var tttt[3];

var min_val=500; var min_i;

while (i < ent_vertices (my))
{ 
	vec_for_vertex(tttt,my,i);
	//k=vec_dist(tttt,you.x);
	k=vec_dist(tttt,target.x);
	if(k<min_val) 
         {min_val=k; min_i=i;}
	i+=1;
}

vec_for_mesh(temp,my,min_i);
vec_scale(temp,0.2);
vec_to_mesh(temp,my,min_i);
ent_fixnormals(my,0);

---

@Marco

I have already tested this line
k=vec_dist(tttt,target.x);
and it has bad effect, that is why i changed it to
k=vec_dist(tttt,you.x);

Because of target.x not working correct, i am asking it from you.

At this point I can only guess that this was a problem which has been fixed in the meantime. I will send you a link to the current Beta version of 3D GameStudio.

Thanks Marco,

Now it is working. But this version affects my sky. I have used day night transition script with beautiful sky. After i have updated my version, this script doesnot work.

Please tell me, why it does not work ? New version have changes in sky entity ?