Mercurial > rinkhals

comparison regenerate_pngs.py @ 261:86291107d67a

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Make regenerate_pngs more import-friendly.
author Jeremy Thurgood <firxen@gmail.com>
date Sat, 05 Sep 2009 13:20:59 +0000
parents regenerate-pngs.py@d564ae258471
children 8896bae31eda
comparison
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260:fb33aef5131c 261:86291107d67a
1 #!/usr/bin/env python
2
3 import cairo
4 import rsvg
5 import os
6 from Image import open
7
8 def svg_to_png(svg_name, png_name, w, h):
9 """Convert an SVG file to a PNG file."""
10 print "Generating %s at %dx%d..." % (png_name, w, h)
11 r = rsvg.Handle(svg_name)
12
13 scale = max(float(r.props.width) / w, float(r.props.height) / h)
14 scale = 1.0 / scale
15
16 r.props.dpi_x = r.props.dpi_x / scale
17 r.props.dpi_y = r.props.dpi_y / scale
18
19 cs = cairo.ImageSurface(cairo.FORMAT_ARGB32, w, h)
20 ctx = cairo.Context(cs)
21 ctx.scale(scale, scale)
22 r.render_cairo(ctx)
23 cs.write_to_png(png_name)
24
25 def process_svg_folder(path, width, height):
26 for dirpath, dirnames, filenames in os.walk(path):
27 for filename in filenames:
28 basename, ext = os.path.splitext(filename)
29 if ext == ".svg":
30 svg_name = os.path.join(dirpath, basename + ".svg")
31 png_name = os.path.join(dirpath, basename + ".png")
32 svg_to_png(svg_name, png_name, width, height)
33
34 def process_sprite(name, width, height, sprite_path):
35 svg_name = os.path.join(sprite_path, name) + ".svg"
36 png_name = os.path.join(sprite_path, name) + ".png"
37 svg_to_png(svg_name, png_name, width, height)
38
39 def process_cursor(name, width, height, sprite_path, cursor_path):
40 # We bounce through png to get something PIL understands
41 svg_name = os.path.join(sprite_path, name) + '.svg'
42 png_name = os.path.join(cursor_path, name) + '.png'
43 xbm_name = os.path.join(cursor_path, name) + '.xbm'
44 svg_to_png(svg_name, png_name, width, height)
45 # We need to bounce through 'L' first to handle transparency OK
46 pixeldata = open(png_name).convert('L')
47 # Everything > 0 goes to white
48 lut = [0] + [1]*255
49 pixeldata.point(lut, mode='1').save(xbm_name)
50 os.remove(png_name)
51
52 TILE_PATH = "data/tiles"
53 SPRITE_PATH = "data/sprites"
54 IMAGE_PATH = "data/images"
55 CURSOR_PATH = "data/cursors"
56
57 SPRITES = [
58 # chicken bits
59 ("chkn", 20, 20),
60 ("wing", 20, 20),
61 ("eye", 20, 20),
62 ("equip_rifle", 20, 20),
63 ("equip_knife", 20, 20),
64 ("equip_kevlar", 20, 20),
65 ("equip_helmet", 20, 20),
66 ("select_chkn", 20, 20),
67 ("nest", 20, 20),
68 ("equip_egg", 20, 20),
69 # fox bits
70 ("fox", 20, 20),
71 ("ninja_fox", 20, 20),
72 ("sapper_fox", 20, 20),
73 ("rinkhals", 20, 20),
74 # buildings
75 ("henhouse", 60, 40),
76 ("select_henhouse", 60, 40),
77 ("hendominium", 40, 60),
78 ("select_hendominium", 40, 60),
79 ("watchtower", 40, 40),
80 ("select_watchtower", 40, 40),
81 # special effects
82 ("muzzle_flash", 20, 20),
83 ("chkn_death", 20, 20),
84 ("fox_death", 20, 20),
85 # other
86 ("egg", 20, 20),
87 ]
88
89 CURSORS = [
90 ("chkn", 16, 16),
91 ("egg", 16, 16),
92 ("sell_cursor", 24, 24),
93 ]
94
95 if __name__ == "__main__":
96 process_svg_folder("data/tiles", 20, 20)
97 process_svg_folder("data/icons", 40, 40)
98 for name, width, height in SPRITES:
99 process_sprite(name, width, height, SPRITE_PATH)
100 process_sprite("splash", 800, 600, IMAGE_PATH)
101 process_sprite("gameover_win", 800, 600, IMAGE_PATH)
102 process_sprite("gameover_lose", 800, 600, IMAGE_PATH)
103 for name, width, height in CURSORS:
104 process_cursor(name, width, height, SPRITE_PATH, CURSOR_PATH)