Quat* {.
byref
.} = object
  x*: float32
  y*: float32
  z*: float32
  w*: float32

proc initQuat*(x, y, z, w: float32): Quat {.
inline
.}

proc initQuat*(axis: Vector3; angle: float32): Quat {.
inline
.}

proc `$`*(self: Quat): string {.
inline
.}

proc length*(self: Quat): float32 {.
noSideEffect, importc: "godot_quat_length"
.}

proc lengthSquared*(self: Quat): float32 {.
noSideEffect,
                                       importc: "godot_quat_length_squared"
.}

proc normalized*(self: Quat): Quat {.
noSideEffect, importc: "godot_quat_normalized"
.}

proc isNormalized*(self: Quat): bool {.
noSideEffect,
                                   importc: "godot_quat_is_normalized"
.}

proc inverse*(self: Quat): Quat {.
noSideEffect, importc: "godot_quat_inverse"
.}

proc dot*(a, b: Quat): float32 {.
noSideEffect, importc: "godot_quat_dot"
.}

proc xform*(self: Quat; v: Vector3): Vector3 {.
noSideEffect,
    importc: "godot_quat_xform"
.}

proc slerp*(self: Quat; b: Quat; t: float32): Quat {.
noSideEffect,
    importc: "godot_quat_slerp"
.}

proc slerpni*(self: Quat; b: Quat; t: float32): Quat {.
noSideEffect,
    importc: "godot_quat_slerpni"
.}

proc cubicSlerp*(self, b, pre_a, post_b: Quat; t: float32): Quat {.
noSideEffect,
    importc: "godot_quat_cubic_slerp"
.}

proc `*`*(a: Quat; b: float32): Quat {.
noSideEffect,
                                 importc: "godot_quat_operator_multiply"
.}

proc `*=`*(a: var Quat; b: float32) {.
inline
.}

proc `+`*(a, b: Quat): Quat {.
noSideEffect, importc: "godot_quat_operator_add"
.}

proc `+=`*(a: var Quat; b: Quat) {.
inline
.}

proc `-`*(a, b: Quat): Quat {.
noSideEffect, importc: "godot_quat_operator_substract"
.}

proc `-=`*(a: var Quat; b: Quat) {.
inline
.}

proc `/`*(self: Quat; b: float32): Quat {.
noSideEffect,
                                    importc: "godot_quat_operator_divide"
.}

proc `/=`*(self: var Quat; b: float32) {.
inline
.}

proc `==`*(a, b: Quat): bool {.
noSideEffect, importc: "godot_quat_operator_equal"
.}

proc `-`*(self: Quat): Quat {.
noSideEffect, importc: "godot_quat_operator_neg"
.}