spritebox 0.6.0

Create 2D pixel art and game assets from text: sprites, backgrounds with parallax, tilemaps, procedural textures, UI and pixel fonts. A zero-dependency Rust library and CLI with PNG, atlas and TTF export.
Documentation 
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; Finite background: palette-key sky, two profile distances, weighted trees,
; mixed palettes, cropped map, repeating texture and exact rational parallax.
; Sparse tree/circuit pixels are intentional at this small native resolution.
lint allow orphan_pixel jaggy double_outline banding near_duplicate_color
palette world
  . transparent
  s #172d48
  h #627da0
  d #e5ac84
  m #fff1bd
  f #586881
  g #345c54
  t #193f3a
  k #112b30
  w #4c9690
palette lamps
  l #ffc77e
  b #263a4d

surface sky 320x180 palette=world
  gradient dusk axis=y mode=blend dither=bayer4
    stop 0 s
    stop 85 h
    stop 150 d
  ellipse moon at=242,16 size=28x28 key=m
surface distant 320x180 palette=world seed=7
  profile mountains key=f baseline=144 amplitude=56 cell=64 octaves=4 roughness=70 seed=11
surface near 320x180 palette=world seed=7
  profile ridge key=g baseline=162 amplitude=28 cell=32 octaves=3 roughness=45 seed=5
surface buildings 96x80 palette=world
  rect tower at=8,24 size=28x56 key=k
  rect block at=43,38 size=45x42 key=t
  polygon roof key=k points=38,38 65,21 92,38
  line aerial from=22,5 to=22,24 key=k
sprite tree 9x14 palette=world
  ....t....
  ...ttt...
  ..ttttt..
  .ttttttt.
  ...ttt...
  ..ttttt..
  .ttttttt.
  ttttttttt
  ...kkk...
  ...kkk...
  ...kkk...
  ...kkk...
  ...kkk...
  ...kkk...
sprite window 2x3 palette=lamps
  ll
  ll
  bb
texture water 32x8 palette=world seed=12
  noise cell=8 octaves=2 roughness=50
  ramp k w
  dither bayer4
tileset pavement 4x4 palette=world
  tile slab
    kkkk
    kttt
    kttt
    kttt
tilemap promenade tileset=pavement
  legend
    p slab solid
  map
    pppppppppppppppp
    pppppppppppppppp

background harbor 320x180 seed=7
  layer sky 320x180 parallax=0/1,0/1
    place surface sky at=0,0
  layer mountains 320x180 repeat=x parallax=1/4,0/1
    place surface distant at=0,0
  layer hills 320x180 repeat=x parallax=1/2,0/1
    place surface near at=0,0
  layer town 96x80 at=180,87 repeat=x parallax=3/4,0/1
    place surface buildings at=0,0
    place sprite window at=16,36
    place sprite window at=26,36
    place sprite window at=16,50
    place sprite window at=26,50
  layer trees 320x180 repeat=x parallax=1/1,0/1
    scatter grove count=12 spacing=18 attempts=1024 seed=4 baseline=near(ridge) mask=near(g)
      variant tree weight=3
      variant tree:flip_x weight=1
  layer water 32x8 at=0,172 repeat=x parallax=1/1,0/1
    place sprite water at=0,0
  layer walk 48x4 at=0,168 repeat=x parallax=1/1,0/1
    place tilemap promenade at=0,0 crop=8,0,48,4

theme day of world
  s #5d96b3
  h #adc9c2
  d #f1d4a5
  f #749695
  g #61816a
theme night of world
  s #080e24
  h #263151
  d #795d78
  f #252e4e
  g #1f4243
  m #cedcf0
  w #325373
  t #193f3a00