(local util (require :lib.util))
(local dim (require :game.dim))
(local {: defmethod} (util.require :lib.multimethod))
(local {: direct : draw : update} (util.require :game.entity))
(local map (require :game.tilemap))

(local pacman (util.hot-table ...))

(set pacman.keymap {:up :up :down :down :left :left :right :right})
(defmethod draw :pacman (fn [{:pos [x y]}]
  (love.graphics.setColor 1 1 0)
  (love.graphics.circle :fill x y dim.halftile)))

; Pacman movement and collision rules
; * Pacman moves in the direction he was told until stopped by a wall
; * If the player tells Pacman to change direction but there is a wall there,
;   Pacman's direction does not change
; * Turning a corner is funky:
; https://www.gamasutra.com/view/feature/132330/the_pacman_dossier.php?page=4
; "Whenever Pac-Man makes a pre-turn or post-turn, his orientation changes, and he starts to
;  move one pixel in his new direction for every pixel traveled in his old direction, effectively
;  doubling his speed as he moves at a 45 degree angle. Once he reaches the centerline of the new
;  direction's path, he starts moving purely in that direction and his speed returns to normal."
; The simplest way to implement this appears to be to treat turns as having a "fudge factor" -
; Pacman enters a state where he changes direction _and_ is being pulled towards the center of
; the track. (The "post-turn" correction means we can't simply treat this as the corners having
; their edges filed off!)
; I think Bomberman actually does this too


(fn pacman.new [pos]
  {: pos :vel [0 0] :entity :pacman})

pacman.hot