newby here: maybe I missed in manual but.
...
Just wondering how do you stop emmitting particles once they have started?
I dont want to hide or unhide but turn off emitter so that last particle fades away as the fountain so to speak stops creating new particles in mid game play.

take for example the demo they show in manuals under the search word particles as an example.
How would you stop them in that case?
thanks

uhm..

two ways:

1st:
Your particle emitter code has a while loop. just replace "while(1)" with "while(var == 0)"
When you set the var to a value other than 0, the loop breaks.. particle emitting stops


2nd:
you call the emitting code from another function ( emitting code has no while loop ) every frame.
Then just stop calling the emitting code.

maybe you could tell me how what your saying fits into the context of what I am doing. I start the particle effect when pressing f1 but I cant get it to stop when release the key.
here is the the code:

#include <acknex.h>
#include <default.c>
#include <atypes.h>
//////////////////////////////

VECTOR* vTemp;
function p_fountain(PARTICLE* p)
{
set(p, MOVE | BRIGHT);
}

void start_particle_while_key(int key, VECTOR* vec)
{
while(1)
{
effect(p_fountain,maxv(1,40*time_step),vector(0,0,0),vector(0,0,4));
wait(1);
}
//stop effect code here I would think
}

function key_down(key) //captures ALL key presses
{
switch(key)
{
case 59:
start_particle_while_key(59, vTemp);
break;
}
}

function main()
{
on_anykey = key_down;//tell any key press to call this function
level_load(NULL);
vec_set(camera.x,vector(-150,0,50));
}

create a new variable



replace

with



After that, add a new case to you keyswitch:



*not tested.. at the moment, i´m at work and have no GStudio here*

... or replace:
while(1)
with
while(key_pressed (key)) // key is 59 in the function, Scancode 59 = F1

The while breaks if you release the F1

Thanks everyone!