Create a customblocks.json for use with my crayola120.py and go server

custom120.py

import json
from PIL import Image

# The 120 Crayola colors mapped to their standard hex values
CRAYOLA_COLORS = {
    # Reds & pinks
    "Almond": "#EFDECD", "Apricot": "#FDD9B5", "Bittersweet": "#FD7C6E", "Blush": "#DE5D83",
    "Brick Red": "#CB4154", "Carnation Pink": "#FFAACC", "Cerise": "#DD4492", "Chestnut": "#BC5D58",
    "Jazzberry Jam": "#CA3767", "Mahogany": "#CD4A4C", "Mango Tango": "#FF8243", "Mauvelous": "#EF98AA",
    "Melon": "#FDBCB4", "Peach": "#FFCBA4", "Pink Flamingo": "#FC74FD", "Pink Sherbert": "#F78FA7",
    "Radical Red": "#FF496C", "Razzmatazz": "#E3256B", "Red": "#EE204D", "Salmon": "#FF9BAA",
    "Scarlet": "#FC2847", "Sunset Orange": "#FD5E53", "Tickle Me Pink": "#FC89AC",
    "Violet Red": "#F75394", "Wild Strawberry": "#FF43A4",
    # Oranges
    "Atomic Tangerine": "#FFA474", "Burnt Orange": "#FF7034", "Burnt Sienna": "#EA7E5D",
    "Copper": "#DD9475", "Macaroni And Cheese": "#FFBD88", "Neon Carrot": "#FFA343",
    "Orange": "#FF7538", "Outrageous Orange": "#FF6E4A", "Red Orange": "#FF5349",
    "Tumbleweed": "#DEAA88", "Vivid Tangerine": "#FF9980",
    # Yellows
    "Banana Mania": "#FAE7B5", "Canary": "#FFFF99", "Dandelion": "#FED85D",
    "Desert Sand": "#EFCDB8", "Gold": "#E7C697", "Goldenrod": "#FCD975",
    "Laser Lemon": "#FEFE22", "Sunglow": "#FFCF48", "Tan": "#FAA76C",
    "Unmellow Yellow": "#FFFF66", "Yellow": "#FCE883", "Yellow Orange": "#FFAE42",
    # Yellow-greens & limes
    "Electric Lime": "#CEFF1D", "Green Yellow": "#F0E891", "Inchworm": "#B2EC5D",
    "Olive Green": "#BAB86C", "Spring Green": "#ECEABE", "Yellow Green": "#C5E384",
    # Greens
    "Asparagus": "#87A96B", "Fern": "#71BC78", "Forest Green": "#6DAE81",
    "Granny Smith Apple": "#A8E4A0", "Green": "#1CAC78", "Jungle Green": "#3BB08F",
    "Mountain Meadow": "#30BA8F", "Pine Green": "#158078", "Screamin Green": "#76FF7A",
    "Sea Green": "#9FE2BF", "Shamrock": "#45CEA2", "Tropical Rain Forest": "#17806D",
    # Blues & teals
    "Aquamarine": "#78DBE2", "Blue": "#1F75FE", "Blue Green": "#0D98BA",
    "Caribbean Green": "#1CD3A2", "Cerulean": "#1DACD6", "Cornflower": "#9ACEEB",
    "Denim": "#2B6CC4", "Midnight Blue": "#1A4876", "Navy Blue": "#1974D2",
    "Pacific Blue": "#1CA9C9", "Robin's Egg Blue": "#1FCECB", "Sky Blue": "#80DAEB",
    "Timberwolf": "#DBD7D2", "Turquoise Blue": "#77DDE7",
    # Purples & violets
    "Blue Bell": "#A2A2D0", "Blue Violet": "#7366BD", "Cadet Blue": "#B0B7C6",
    "Eggplant": "#6E5160", "Fuchsia": "#C364C5", "Indigo": "#5D76CB",
    "Lavender": "#FCB4D5", "Manatee": "#979AAA", "Mulberry": "#C54B8C",
    "Orchid": "#E6A8D7", "Outer Space": "#414A4C", "Periwinkle": "#C5D0E6",
    "Plum": "#8E4585", "Purple Heart": "#7442C8", "Purple Mountain Majesty": "#9D81BA",
    "Purple Pizzazz": "#FE4EDA", "Razzle Dazzle Rose": "#FF48D0", "Red Violet": "#C0448F",
    "Royal Purple": "#7851A9", "Shocking Pink": "#FB7EFD", "Thistle": "#EBC7DF",
    "Vivid Violet": "#8F509D", "Violet (Purple)": "#926EAE", "Wild Blue Yonder": "#A2ADD0",
    "Wisteria": "#CDB4DB",
    # Fluorescents
    "Hot Magenta": "#FF1DCE", "Magenta": "#F664AF", "Wild Watermelon": "#FD5B78",
    # Neutrals
    "Antique Brass": "#CD9575", "Blizzard Blue": "#ACE5EE", "Maroon": "#C8385A",
    "Sepia": "#A5694F", "Shadow": "#8A795D",
    "Beaver": "#9F8170", "Black": "#000000", "Brown": "#B4674D",
    "Fuzzy Wuzzy": "#CC6666", "Gray": "#95918C", "Silver": "#CDC5C2", "White": "#FFFFFF",
}

def is_slot_empty(img, tx, ty):
    """Checks if a 16x16 slot is empty (pure purple background in this terrain.png)."""
    # EXPLICIT FIX: Protect the original Magenta Wool at Row 4, Column 11
    if tx == 11 and ty == 4:
        return False

    # Look at the center pixel of the tile to determine if it's the empty purple background
    r, g, b, a = img.getpixel((tx * 16 + 8, ty * 16 + 8))
    if r > 200 and g < 150 and b > 200:
        return True
    return False

def main():
    terrain = Image.open("terrain.png").convert("RGBA")
    
    # 1. Build the list of names and their walking sounds (4=Stone, 7=Cloth)
    block_definitions = []
    for char in "ABCDEFGHIJKLMNOPQRSTUVWXYZ":
        block_definitions.append((f"Letter {char}", 4))
    for char in "0123456789":
        block_definitions.append((f"Number {char}", 4))
    for color_name in CRAYOLA_COLORS.keys():
        block_definitions.append((f"{color_name} Wool", 7))

    blocks_json = []
    
    # The ID to start counting from. Change this if you need them to start elsewhere!
    current_id = 66
    
    block_index = 0
    total_new_blocks = len(block_definitions)

    # 2. Scan the terrain sheet for empty slots
    for ty in range(15):
        for tx in range(16):
            if block_index >= total_new_blocks:
                break
                
            if is_slot_empty(terrain, tx, ty):
                # Calculate the exact texture ID for ClassicCube (Y * 16 + X)
                tex_id = ty * 16 + tx
                name, sound = block_definitions[block_index]
                
                block_data = {
                    "id": current_id,
                    "name": name,
                    "solidity": 2,          # 2 = Solid Block (Change to 0 if you want to walk through them)
                    "speed": 1,
                    "top_tex": tex_id,
                    "side_tex": tex_id,
                    "bottom_tex": tex_id,
                    "transmit_light": 0,
                    "walk_sound": sound,    
                    "full_bright": 0,
                    "shape": 16,            # 16 = Standard full block
                    "block_draw": 0,        # 0 = Opaque (standard drawing)
                    "fog_density": 0,
                    "fog_r": 0,
                    "fog_g": 0,
                    "fog_b": 0,
                    "fallback": 0
                }
                blocks_json.append(block_data)
                
                current_id += 1
                block_index += 1

    # 3. Write out the JSON file
    with open("customblocks.json", "w") as f:
        # indent=2 formats it exactly like the snippet you provided
        f.write(json.dumps(blocks_json, indent=2))

    print(f"Success! Generated customblocks.json with {len(blocks_json)} blocks.")

if __name__ == "__main__":
    main()