float ApproachAngle(float target, float value, float speed)
{
target = anglemod(target);
value = anglemod(value);
float delta = target - value;
// Speed is assumed to be positive
if (speed < 0)
speed = -speed;
if (delta < -180)
delta += 360;
else if (delta > 180)
delta -= 360;
if (delta > speed)
value += speed;
else if (delta < -speed)
value -= speed;
else
value = target;
return value;
}