update_lerp.inc.c

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/* Moves the value one frame on: 1 once it has reached the target */
s32 OVL_NAME(updateLerp)(MenuLerp *lerp) {
    if (lerp->active == 0) {
        return 1;
    }
    lerp->fixed += lerp->step;
    lerp->value = lerp->fixed >> 8;
    if (lerp->step > 0) {
        if (lerp->target < lerp->value) {
            lerp->value = lerp->target;
            lerp->active = 0;
            return 1;
        }
    } else if (lerp->value < lerp->target) {
        lerp->value = lerp->target;
        lerp->active = 0;
        return 1;
    }
    return 0;
}