i'm trying to use bounce/vec_bounce along with particles, am not sure how to accomplish this, i know i cant just write:


vec_bounce(p.vel_x, p.vel_x);

also what if i wanted to trace along the path a particle is moving, meaning, i want to trace from the current particle position to a position infront of it based on its velocity; ive tried calculating it using the distance covered this frame and last frame but i think i overlooked something....