/// turn_towards_direction(direction, turnspeed)
var wdir, turnspeed, tempdir;
wdir = argument0;
turnspeed = argument1;
if (abs(wdir - direction) > 180) {
    if (wdir > 180) {
        tempdir = wdir - 360;
        if (abs(tempdir - direction) > turnspeed) {
            direction -= turnspeed;
        } else direction = wdir;
    } else {
        tempdir = wdir + 360;
        if (abs(tempdir - direction) > turnspeed) {
            direction += turnspeed;
        } else direction = wdir;
    }
} else if (abs(wdir - direction) > turnspeed) {
    if (wdir > direction) {
        direction += turnspeed;
    } else direction -= turnspeed;
} else direction = wdir;