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Minimal Game Boy Hello World using GBDK-2020 and PyBoy
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gameboy-hello/build_pro_tiles.py

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import os
from PIL import Image
# Meticulously crafted 8x8 organic tiles matching the mockup style
floors = [
# 0: Clean floor
[
"00000000",
"00000000",
"00000000",
"00000000",
"00000000",
"00000000",
"00000000",
"00000000"
],
# 1: Tiny pebble/crack
[
"00000000",
"00100000",
"00000000",
"00000000",
"00000000",
"00000001",
"00000000",
"00000000"
],
# 2: Subtle horizontal vein
[
"00000000",
"00000000",
"01100000",
"00010000",
"00000000",
"00000000",
"00000000",
"00000000"
],
# 3: Diagonal crack
[
"00000000",
"00000000",
"00000000",
"00000010",
"00000100",
"00001000",
"00000000",
"00000000"
],
# 4: Forked crack
[
"00000000",
"00000000",
"00000000",
"00000000",
"00100000",
"00011000",
"00000100",
"00000000"
],
# 5: Dots / dust
[
"00000000",
"00000000",
"00000000",
"00010000",
"00000000",
"00001000",
"00000000",
"00000000"
]
]
walls = [
# 0: Isolated bush
[
"00111100",
"01122110",
"11222211",
"12222221",
"12222221",
"03333330",
"00333300",
"00000000"
],
# 1: W connected (End pointing East)
[
"11111100",
"11222110",
"22222211",
"22222221",
"22222221",
"33333330",
"33333300",
"00000000"
],
# 2: S connected (End pointing North)
[
"00111100",
"01122110",
"11222211",
"12222221",
"12222221",
"12222221",
"12222221",
"12222221"
],
# 3: S, W connected (Top-Right Corner)
[
"11111100",
"11222110",
"22222211",
"22222221",
"22222221",
"22222221",
"22222221",
"22222221"
],
# 4: E connected (End pointing West)
[
"00111111",
"01122211",
"11222222",
"12222222",
"12222222",
"03333333",
"00333333",
"00000000"
],
# 5: E, W connected (Horizontal Straight)
[
"11111111",
"11222211",
"22222222",
"22222222",
"22222222",
"33333333",
"33333333",
"00000000"
],
# 6: E, S connected (Top-Left Corner)
[
"00111111",
"01122211",
"11222222",
"12222222",
"12222222",
"12222222",
"12222222",
"12222222"
],
# 7: E, S, W connected (Top T-Junction)
[
"11111111",
"11222211",
"22222222",
"22222222",
"22222222",
"22222222",
"22222222",
"22222222"
],
# 8: N connected (End pointing South)
[
"12222221",
"12222221",
"12222221",
"12222221",
"12222221",
"03333330",
"00333300",
"00000000"
],
# 9: N, W connected (Bottom-Right Corner)
[
"22222221",
"22222221",
"22222221",
"22222221",
"22222221",
"33333330",
"33333300",
"00000000"
],
# 10: N, S connected (Vertical Straight)
[
"12222221",
"12222221",
"12222221",
"12222221",
"12222221",
"12222221",
"12222221",
"12222221"
],
# 11: N, S, W connected (Right T-Junction)
[
"22222221",
"22222221",
"22222221",
"22222221",
"22222221",
"22222221",
"22222221",
"22222221"
],
# 12: N, E connected (Bottom-Left Corner)
[
"12222222",
"12222222",
"12222222",
"12222222",
"12222222",
"03333333",
"00333333",
"00000000"
],
# 13: N, E, W connected (Bottom T-Junction)
[
"22222222",
"22222222",
"22222222",
"22222222",
"22222222",
"33333333",
"33333333",
"00000000"
],
# 14: N, E, S connected (Left T-Junction)
[
"12222222",
"12222222",
"12222222",
"12222222",
"12222222",
"12222222",
"12222222",
"12222222"
],
# 15: N, E, S, W connected (Cross Junction)
[
"22222222",
"22222222",
"22222222",
"22222222",
"22222222",
"22222222",
"22222222",
"22222222"
]
]
# Randomize texture inside the solid walls slightly for variation
import random
random.seed(12345)
for i in range(16):
w = [list(r) for r in walls[i]]
for r in range(1, 6):
for c in range(1, 7):
if w[r][c] == '2':
if random.random() < 0.1:
w[r][c] = '1'
elif random.random() < 0.1:
w[r][c] = '3'
walls[i] = ["".join(row) for row in w]
# Add texture to horizontal/vertical segments
for r in range(1, 6):
for c in range(1, 7):
if walls[5][r][c] == '2' and random.random() < 0.15: walls[5][r][c] = '1'
if walls[10][r][c] == '2' and random.random() < 0.15: walls[10][r][c] = '3'
tiles = floors + walls
def to_gb_format(lines):
bytes_arr = []
for line in lines:
lo = hi = 0
for i, char in enumerate(line):
val = int(char)
if val & 1: lo |= (1 << (7 - i))
if val & 2: hi |= (1 << (7 - i))
bytes_arr.append(lo)
bytes_arr.append(hi)
return bytes_arr
with open('src/tiles.c', 'w') as f:
f.write('#include "tiles.h"\n\n')
f.write(f'const unsigned char TileData[{len(tiles)*16}] = {{\n')
# 6 Floors
for i in range(6):
f.write(f' // Floor variant {i}\n')
b = to_gb_format(floors[i])
f.write(' ' + ', '.join(f"0x{val:02X}" for val in b) + ',\n')
# 16 Walls
for i in range(16):
f.write(f' // Wall {i}\n')
b = to_gb_format(walls[i])
f.write(' ' + ', '.join(f"0x{val:02X}" for val in b) + ',\n')
f.write('};\n')
# Also generate a PNG preview so the user can see them
colors = {
0: (224, 248, 208),
1: (136, 192, 112),
2: (52, 104, 86),
3: (8, 24, 32)
}
cols = 6
rows = 4
img = Image.new('RGB', (cols * 10, rows * 10), (255, 255, 255))
for idx, t in enumerate(tiles):
c = idx % cols
r = idx // cols
x_offset = c * 10 + 1
y_offset = r * 10 + 1
for ty in range(8):
for tx in range(8):
color = colors[int(t[ty][tx])]
img.putpixel((x_offset + tx, y_offset + ty), color)
img = img.resize((cols * 10 * 4, rows * 10 * 4), Image.Resampling.NEAREST)
img.save('/home/enne2/.gemini/antigravity/brain/69a2b2a9-088f-47ee-9f3c-9ba7ac332992/pro_tiles_preview.png')
print("tiles.c and pro_tiles_preview.png generated!")