1 files changed, 177 insertions, 0 deletions
diff --git a/tools/gfx.py b/tools/gfx.py
new file mode 100644
index 00000000..1327907d
--- /dev/null
+++ b/tools/gfx.py
@@ -0,0 +1,177 @@
+"""Supplementary scripts for graphics conversion."""
+
+import os
+import argparse
+
+from pokemontools import gfx, lz
+
+
+# Graphics with inverted tilemaps that aren't covered by filepath_rules.
+pics = [
+    'gfx/shrink1',
+    'gfx/shrink2',
+]
+
+def recursive_read(filename):
+    def recurse(filename_):
+        lines = []
+        for line in open(filename_):
+            if 'include "' in line.lower():
+                lines += recurse(line.split('"')[1])
+            else:
+                lines += [line]
+        return lines
+    lines = recurse(filename)
+    return ''.join(lines)
+
+base_stats = None
+def get_base_stats():
+    global base_stats
+    if not base_stats:
+        base_stats = recursive_read('data/pokemon/base_stats.asm')
+    return base_stats
+
+def get_pokemon_dimensions(name):
+    try:
+        if name == 'egg':
+            return 5, 5
+        if name == 'questionmark':
+            return 7, 7
+        if name.startswith('unown_'):
+            name = 'unown'
+        base_stats = get_base_stats()
+        start = base_stats.find('\tdb ' + name.upper())
+        start = base_stats.find('\tdn ', start)
+        end = base_stats.find('\n', start)
+        line = base_stats[start:end].replace(',', ' ')
+        w, h = map(int, line.split()[1:3])
+        return w, h
+    except:
+        return 7, 7
+
+def filepath_rules(filepath):
+    """Infer attributes of certain graphics by their location in the filesystem."""
+    args = {}
+
+    filedir, filename = os.path.split(filepath)
+    if filedir.startswith('./'):
+        filedir = filedir[2:]
+
+    name, ext = os.path.splitext(filename)
+    if ext == '.lz':
+        name, ext = os.path.splitext(name)
+
+    pokemon_name = ''
+
+    if 'gfx/pics/' in filedir:
+        pokemon_name = filedir.split('/')[-1]
+        if pokemon_name.startswith('unown_'):
+            index = filedir.find(pokemon_name)
+            if index != -1:
+                filedir = filedir[:index + len('unown')] + filedir[index + len('unown_a'):]
+        if name == 'front':
+            args['pal_file'] = os.path.join(filedir, 'normal.pal')
+            args['pic'] = True
+            args['animate'] = True
+        elif name == 'back':
+            args['pal_file'] = os.path.join(filedir, 'shiny.pal')
+            args['pic'] = True
+
+    elif 'gfx/trainers' in filedir:
+        args['pic'] = True
+
+    elif os.path.join(filedir, name) in pics:
+        args['pic'] = True
+
+    elif filedir == 'gfx/tilesets':
+        args['tileset'] = True
+
+    if args.get('pal_file'):
+        if os.path.exists(args['pal_file']):
+            args['palout'] = args['pal_file']
+        else:
+            del args['pal_file']
+
+    if args.get('pic'):
+        if ext == '.png':
+            w, h = gfx.png.Reader(filepath).asRGBA8()[:2]
+            w = min(w/8, h/8)
+            args['pic_dimensions'] = w, w
+        elif ext == '.2bpp':
+            if pokemon_name and name == 'front':
+                w, h = get_pokemon_dimensions(pokemon_name)
+                args['pic_dimensions'] = w, w
+            elif pokemon_name and name == 'back':
+                args['pic_dimensions'] = 6, 6
+            else:
+                args['pic_dimensions'] = 7, 7
+
+    if args.get('tileset'):
+        args['width'] = 128
+    return args
+
+
+def to_1bpp(filename, **kwargs):
+    name, ext = os.path.splitext(filename)
+    if   ext == '.1bpp': pass
+    elif ext == '.2bpp': gfx.export_2bpp_to_1bpp(filename, **kwargs)
+    elif ext == '.png':  gfx.export_png_to_1bpp(filename, **kwargs)
+    elif ext == '.lz':
+        decompress(filename, **kwargs)
+        to_1bpp(name, **kwargs)
+
+def to_2bpp(filename, **kwargs):
+    name, ext = os.path.splitext(filename)
+    if   ext == '.1bpp': gfx.export_1bpp_to_2bpp(filename, **kwargs)
+    elif ext == '.2bpp': pass
+    elif ext == '.png':  gfx.export_png_to_2bpp(filename, **kwargs)
+    elif ext == '.lz':
+        decompress(filename, **kwargs)
+        to_2bpp(name, **kwargs)
+
+def to_png(filename, **kwargs):
+    name, ext = os.path.splitext(filename)
+    if   ext == '.1bpp': gfx.export_1bpp_to_png(filename, **kwargs)
+    elif ext == '.2bpp': gfx.export_2bpp_to_png(filename, **kwargs)
+    elif ext == '.png':  pass
+    elif ext == '.lz':
+        decompress(filename, **kwargs)
+        to_png(name, **kwargs)
+
+def compress(filename, **kwargs):
+    data = open(filename, 'rb').read()
+    lz_data = lz.Compressed(data).output
+    open(filename + '.lz', 'wb').write(bytearray(lz_data))
+
+def decompress(filename, **kwargs):
+    lz_data = open(filename, 'rb').read()
+    data = lz.Decompressed(lz_data).output
+    name, ext = os.path.splitext(filename)
+    open(name, 'wb').write(bytearray(data))
+
+
+methods = {
+    '2bpp': to_2bpp,
+    '1bpp': to_1bpp,
+    'png':  to_png,
+    'lz':   compress,
+    'unlz': decompress,
+}
+
+def main(method_name, filenames=None):
+    if filenames is None: filenames = []
+    for filename in filenames:
+        args = filepath_rules(filename)
+        method = methods.get(method_name)
+        if method:
+            method(filename, **args)
+
+def get_args():
+    ap = argparse.ArgumentParser()
+    ap.add_argument('method_name')
+    ap.add_argument('filenames', nargs='*')
+    args = ap.parse_args()
+    return args
+
+if __name__ == '__main__':
+    main(**get_args().__dict__)