Making 2 elements out of 1
-
@tommig (View Post)
..I'm not an expert but common sense tells me that at the line where it would generates one element, you make it generates another one? -
what compiler are you using?
-
Assuming you want to keep the total number of particles the same, just pick one of the two decay products at random. For example:
if (1>rand()%2)
create_part(i, x, y, PT_DUST);
else
create_part(i, x, y, PT_WATR);
will make half of it turn into dust and half into water.
If you want to make each particle turn into two new particles, that's slightly more complicated and depends on what the elements are. -
@randalserrano (View Post)
No difference.
@tommig (View Post)
if ((rand()%1+1)>1){
parts[i].type = Element1;
}else{
parts[i].type = Element2;
}
EDIT: Jacksonmj beat me to it. -
@jacksonmj (View Post)
I need, preferablly, to turn 1 into 2, I'm using my H2O2 element, I want to turn it into water and O2 -
-
@tommig (View Post)
I can't see any way to do that without putting water and O2 in the same place. And it's a bad idea to put two particles in the same place (unless they're allowed to overlap, like neutrons and photons), because it causes big problems with movement. I'd recommend against it in this case.
Normally, you create a new particle using create_part(-1,x,y,type), but create_part won't allow a new particle in the same place as an existing one. So if you want to see how buggy it makes movement, try the code below. Note how the liquid volume 'shrinks' - some of the liquid particles end up overlapping.// turn the current particle into water
create_part(i,x,y,PT_WATR);
if (pfree!=-1)
{
// allocate a new particle (normally done by create_part)
r = pfree;
pfree = parts[r].life;
// make the new particle into O2
create_part(r,x,y,PT_O2);
}
