val p : 'a
val matrix_mult : int array array -> int array array -> int array array
val abs : int -> int
val absf : float -> float
type pt_3d = { mutable x : float; mutable y : float; mutable z : float; }
type pt_2d = { mutable x : float; mutable y : float; }
val camera_xyz : pt_3d
val camera_angle : int ref
val should_be_drawn_gr : pt_3d -> bool
val sign : float -> float
val is_cube_behind_camera : pt_3d array -> bool
val debug_1 : pt_3d array -> unit
val to_graphics : pt_2d array -> int -> int -> (int * int) array
val draw_pts_2d : pt_2d array -> int -> int -> unit
val project : pt_3d array -> int -> int -> int -> pt_2d array
val adjust_to_camera : pt_3d array -> pt_3d array
val sq : float -> float
val dist_from_camera : pt_3d -> float
val farthest_pt : pt_3d -> pt_3d -> float
val swap : 'a array -> int -> int -> unit
val draw_cube_p :
  pt_3d array -> int -> int -> int -> int -> int -> int -> unit
val sum_x : pt_3d array -> float
val sum_y : pt_3d array -> float
val sum_z : pt_3d array -> float
val cube_dist : pt_3d array -> float
val draw_multiples_cubes : pt_3d array array -> int -> int -> int -> unit
val draw_multiples_cubes_colored :
  pt_3d array array ->
  int -> int array -> int array -> int array -> int -> int -> int -> unit
val create_cube : int -> int -> int -> int -> pt_3d array
val cube : pt_3d array
val cube2 : pt_3d array
val cube3 : pt_3d array
val cube4 : pt_3d array
val fov : int
val hehe : unit -> 'a
val get1char : unit -> char
type tile = Free | Wall | Crate | Exit | Craxit | Camera
val width : int
val height : int
val depth : int
val laby : tile array array array
val n_walls : int ref
val convert_laby :
  tile array array array ->
  pt_3d array array * int array * int array * int array
val cheesify : tile array array array -> unit
val cs : pt_3d array array
val rs : int array
val gs : int array
val bs : int array