Hello,
I want the smoke to come out in the direction of the player,i.e,
it should look like as if the player is spraying.

This is the code i am using and the player is PlBiped(A6 template).

BMAP px_tga = "smog_02.tga";
function fade_p()
{
my.alpha -= 10 * time_step;
if (my.alpha < 0) {my.lifespan = 0;}
}


function effect_x()
{
my.alpha = 30 + random(65);
my.flare = on;
my.bmap = px_tga;
my.size = 12;
my.bright = on;
my.move = on;
my.function = fade_p;
}

function create_px()
{
var temp_pos;
var temp_var;
while (1)
{
temp_pos.x += 20 * cos(plBiped01_entity.x); // 20 = particle radius
temp_pos.y += 20 * sin(plBiped01_entity.x); // use the same value here
effect(effect_x, 1, temp_pos.x, nullvector);
wait (1);
}
}
on_m = create_px;

Do you have a problem as well? :P

The problem is that the smoke is not coming in the players direction,
it is comming from behind the player and perpendicular to the player direction.

instead of:

while (1)
{
temp_pos.x += 20 * cos(plBiped01_entity.x); // 20 = particle radius
temp_pos.y += 20 * sin(plBiped01_entity.x); // use the same value here
effect(effect_x, 1, temp_pos.x, nullvector);
wait (1);
}

try:

while (1)
{
vec_set(temp,vector(20,0,0));
vec_rotate(temp,(plBiped01_entity.pan);
vec_add(temp,(plBiped01_entity.x);
effect(effect_x, 1, temp, nullvector);
wait (1);
}

also, temp_pos is not a vector, the way you're defining it, but you're acting like it is.

did it work?

hi germanukol,

Thank you, ya it is attaching the smoke(smog_02.tga) to the player, but its not spraying i.e, the spray effect is not seen, only the tga is attached to the player.
And also the smoke(tga) is attached to the player throughout the game, but after spraying the smoke should be invisible(only player should be visible).

So the smoke should spray only once and not through out the entire game?
Please list what exactly you are looking for and where your problem is, that would make it easier to help you.

Thanks and have a nice day.

Ya, the smoke should spray only once, not through out the game.
The game has 4 levels and only in 2nd level smoke has to be sprayed and only once(ie., when 'M' is presses and should stop after we release 'M')
after that the player has to perform other actions(ie., has to go and touch the skycar...). But using the below code.., the smoke is visible throught out the game(ie., in all the levels after we execute this function).

But, it has to spray when we click on_M and stop spraying after we release the button.

I don't know whether this is reasonable within the whole of your game, but it should do the task, although not tested.

function create_px()
{
while (1)
{
add here:if(key_m)
add here:{
vec_set(temp,vector(20,0,0));
vec_rotate(temp,(plBiped01_entity.pan);
vec_add(temp,(plBiped01_entity.x);
effect(effect_x, 1, temp, nullvector);
add here:}
wait (1);
}
}
remove this line:on_m = create_px;

-----------
BTW: How can I format this as code?

Thank u,
but this is not working ie.,if(key_m) is not working..


Add the code: between [code][/code] to format this as code.