Function compute_npc 

pub unsafe fn compute_npc(
    x: u16,
    y: u8,
    z: u16,
    nid: i32,
    ntype: i32,
    tele: bool,
    runDir: i8,
    walkDir: i8,
    lifecycle: u8,
    lifecycleTick: i32,
    masks: u32,
    faceEntity: i32,
    faceX: i32,
    faceZ: i32,
    orientationX: i32,
    orientationZ: i32,
    damageTaken: i32,
    damageType: i32,
    currentHitpoints: i32,
    baseHitpoints: i32,
    animId: i32,
    animDelay: i32,
    say: Option<String>,
    graphicId: i32,
    graphicHeight: i32,
    graphicDelay: i32,
)