Hello there! I am relatively new to lite c and currently i'm doing an assignment that requires me to do a few different particle effects.

So i thought of doing a particle effect that works like a shooting star, but halfway through it's flight, it would do a 360 degrees circle flip and continue it way in the same direction.

I was wondering let's say i set a certain particle to a relatively long lifespan let's say 10 seconds. and it's event i call upon another function which would check with an "if" condition that should the lifespan falls to 5 seconds and i would change the particle's velocity x, y and z with a certain circlular motion formula.

x = radius * cos(angle)
y = radius * sin(angle)

Is it possible at all? Because i tried it and it doesn't work. I hope someone would help me with this. Thank you!

var radius = 32;

function part_circle(PARTICLE* p) {

if(p.lifespan < 100 && p.skill_a == 1) {
p.skill_b += 5*time_step;
if(p.skill_b > 360) { p.skill_a = 0;}
else {
p.x = p.skill_c+radius*cos(p.skill_b);
p.y = p.skill_d+radius*sin(p.skill_b);
}
}

else {
vec_add(p.x,vector(p.vel_x*time_step,p.vel_y*time_step,p.vel_z*time_step));
p.skill_c = p.x;
p.skill_d = p.y;
}

}

function part_circle(PARTICLE* p) {
p.vel_x = ...
// do NOT (!) set p's MOVE flag
...
p.lifespan = 160;
p.skill_a = 1;
p.event = part_circle_move;
}

Untested.