chiropterm 0.2.0

bat-themed fake terminal in the style of libtcod
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57

from PIL import Image


def reencode_swatch(src, dst):
    bytes_list = []
    with Image.open(src) as im:
        assert im.width * im.height == 256
        for y in range(im.height):
            for x in range(im.width):
                pix = im.getpixel((x, y))
                if len(pix) == 4:
                    r, g, b, a = pix
                else:
                    r, g, b = pix
                bytes_list.append(r)
                bytes_list.append(g)
                bytes_list.append(b)

    with open(dst, "wb") as bin:
        bin.write(bytes(bytes_list))


def reencode_font(src, dst, glyph_width_cells, glyph_height_cells):
    bits = []
    with Image.open(src) as im:
        for char_y in range(0, im.height, 8 * glyph_height_cells):  # so the bottom half of the char will end up right after the top
            for char_x in range(0, im.width, 8 * glyph_width_cells):
                for subglyph_y in range(glyph_height_cells):
                    for subglyph_x in range(glyph_width_cells):
                        cell_x = char_x + subglyph_x * 8
                        cell_y = char_y + subglyph_y * 8

                        for y in range(8):  # to match the other condition
                            for x in range(8):
                                pix = im.getpixel((cell_x + x, cell_y + y))
                                r, g, b, a = pix
                                value = (r + g + b) / (255 + 255 + 255)
                                if value < 0.5 or a < 128:  # threshold
                                    bit = 0
                                else:
                                    bit = 1
                                bits.append(bit)

    bytes_list = []
    for i in range(0, len(bits), 8):
        byte = sum([2**x for x in range(8) if bits[i + x]])
        bytes_list.append(byte)

    with open(dst, "wb") as bin:
        bin.write(bytes(bytes_list))


if __name__ == "__main__":
    reencode_swatch("srcfiles/swatch.png", "../src/rendering/swatch.bin")
    reencode_font("srcfiles/font.png", "../src/rendering/font.bin", 1, 2)
    reencode_font("srcfiles/font_small.png", "../src/rendering/font_small.bin", 1, 1)
    reencode_font("srcfiles/font_fat.png", "../src/rendering/font_fat.bin", 2, 2)