--- /dev/null
+#!/usr/bin/env python
+
+# this script converts any image to a char map compatible with the
+# assembler's .chr directive
+
+import sys
+import os
+from PIL import Image
+from itertools import product
+
+if len(sys.argv) < 2:
+ print("Usage: png2chr.py <source>")
+ sys.exit(-1)
+
+# these colors are mapped
+# maps color tuple to .chr string
+COLORS = {(0, 0, 0, 255): '3', (0, 0, 0, 0): '0', (107, 107, 107, 255): '1', (181, 181, 181, 255): '2', (255, 255, 255, 255): '0'}
+
+src = sys.argv[1]
+
+def tile(src, d):
+ img = Image.open(src)
+ w, h = img.size
+ tile_index = 0
+
+ # split the image into even tiles
+ grid = product(range(0, h-h%d, d), range(0, w-w%d, d))
+ for i, j in grid:
+ box = (j, i, j+d, i+d)
+ cropped = img.crop(box)
+ cw, ch = cropped.size
+ cropped = cropped.load()
+
+ print('; tile ' + str(tile_index))
+ tile_index += 1
+ for y in range(0, ch):
+ print(".chr ", end='')
+ for x in range(0, cw):
+ color = cropped[x, y]
+ if color in COLORS:
+ print(COLORS[color], end='')
+ else:
+ print('Unknown color: ' + str(cropped[x,y]))
+ sys.exit(-1)
+ print("")
+
+tile(src, 8)
projects / gbrg / .git / commitdiff