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(require hy)
(require hyrule *)
(import pygame
pytmx.util_pygame [load_pygame]
pprint [pprint])
(pygame.init)
(setv TILE_SCALING 1)
(setv TILE_SIZE (* TILE_SCALING 16))
(setv GRAVITY 5)
(defn invert [move]
#((* -1 (get move 0))
(* -1 (get move 1))))
(defclass TileSet []
(defn __init__ [self image tile-w tile-h [padding 0]]
(setv self.sheet
(let [surf (pygame.image.load "assets/tileset_legacy.png")]
(if (!= TILE_SCALING 1)
(pygame.transform.scale
surf
#((* (.get_width surf) TILE_SCALING)
(* (.get_height surf) TILE_SCALING)))
surf)))
(setv self.tiles
(lfor y (range 0 (.get_height self.sheet) (+ tile-h (* padding TILE_SCALING)))
x (range 0 (.get_width self.sheet) (+ tile-w (* padding TILE_SCALING)))
(let [tile (pygame.Surface #(tile-w tile-h))]
(.blit tile self.sheet #(0 0) #(x y tile-w tile-h))
tile)))))
;; Define systems here
(defn apply-gravity [entity entities]
(when (not entity.fixed)
(.move entity #(0 GRAVITY))))
(defn apply-collisions [entity entities]
(for [ent entities]
(when (and (!= ent.id entity.id)
(.colliderect entity.rect ent.rect)
(not entity.fixed))
(.move entity
(invert (get entity.moves -1))))))
;; Define entities here
(defclass LevelTile []
(setv fixed True)
(defn __init__ [self id x y surf]
(setv self.id id)
(setv self.surf
(if (!= TILE_SCALING 1)
(pygame.transform.scale
surf
#((* (.get_width surf) TILE_SCALING)
(* (.get_height surf) TILE_SCALING)))
surf))
(setv self.rect (.get_rect surf :left (* x TILE_SIZE) :top (* y TILE_SIZE)))))
(defclass Player [pygame.sprite.Sprite]
(setv fixed False)
(setv SPEED 5)
(setv JUMP_IMPULSE 100)
(defn __init__ [self tile initial-x initial-y]
(.__init__ (super))
(setv self.id 1)
(setv self.surf (pygame.Surface #(TILE_SIZE TILE_SIZE)))
(.blit self.surf tile #(0 0))
(setv self.rect (.get_rect self.surf :left (* 5 TILE_SIZE))))
(defn move [self move]
(.append self.moves move)
(.move_ip self.rect (get move 0) (get move 1)))
(defn flush [self]
(setv self.moves [])))
(setv screen (pygame.display.set_mode #((* TILE_SCALING 640) (* TILE_SCALING 480))))
(setv clock (pygame.time.Clock))
(setv running True)
(setv tiles (TileSet "assets/tileset_legacy.png" TILE_SIZE TILE_SIZE 1))
(setv player (Player (get tiles.tiles 28) 0 0))
(setv sprites-group [])
(.append sprites-group player)
(setv level (load_pygame "assets/level-1.tmx"))
(for [tiledef (enumerate (.tiles (get level.layers 1)))]
(.append sprites-group (LevelTile (get tiledef 0) #* (get tiledef 1))))
(setv ongoing_inputs [])
(while running
(.flush player)
(for [event (pygame.event.get)]
(case event.type
pygame.QUIT (setv running False)
pygame.KEYDOWN (case event.key
pygame.K_ESCAPE (setv running False)
pygame.K_w (.move player #(0 (* -1 player.JUMP_IMPULSE)))
else (.append ongoing_inputs event.key))
pygame.KEYUP (when (in event.key ongoing_inputs)
(.remove ongoing_inputs event.key))))
(for [inp ongoing_inputs]
(case inp
pygame.K_a (.move player #((* -1 player.SPEED) 0))
pygame.K_s (.move player #(0 1))
pygame.K_d (.move player #(player.SPEED 0))))
(for [sprite sprites-group]
(apply-collisions sprite sprites-group))
(.fill screen "#472d3c")
;; Apply systems
(for [sprite sprites-group]
(apply-gravity sprite sprites-group)
(apply-collisions sprite sprites-group))
(for [sprite sprites-group]
(.blit screen sprite.surf sprite.rect))
(pygame.display.flip)
(.tick clock 60)
)
(pygame.quit)
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