viewer: add sign images

resource/sign_textures.py

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+#!/usr/bin/env python3
+
+import shutil
+import sys
+
+from PIL import Image
+
+MATERIALS = [
+	'acacia',
+	'bamboo',
+	'birch',
+	'cherry',
+	'crimson',
+	'dark_oak',
+	'jungle',
+	'mangrove',
+	'oak',
+	'spruce',
+	'warped',
+]
+
+in_dir = sys.argv[1]
+out_dir = sys.argv[2]
+
+def sign_bg_image(material):
+	in_path = f'{in_dir}/assets/minecraft/textures/entity/signs/{material}.png'
+	out_path = f'{out_dir}/bg/{material}_sign.png'
+	out_path_wall = f'{out_dir}/bg/{material}_wall_sign.png'
+
+	in_image = Image.open(in_path)
+
+	out_image = Image.new('RGBA', (24, 26))
+	out_image.paste(in_image.crop((2, 2, 26, 14)), (0, 0))
+	out_image.paste(in_image.crop((2, 16, 4, 30)), (11, 12))
+	out_image.save(out_path)
+
+	out_image = Image.new('RGBA', (24, 12))
+	out_image.paste(in_image.crop((2, 2, 26, 14)), (0, 0))
+	out_image.save(out_path_wall)
+
+def hanging_sign_bg_image(material):
+	in_path = f'{in_dir}/assets/minecraft/textures/gui/hanging_signs/{material}.png'
+	out_path = f'{out_dir}/bg/{material}_hanging_sign.png'
+	out_path_wall = f'{out_dir}/bg/{material}_hanging_wall_sign.png'
+
+	in_image = Image.open(in_path)
+
+	out_image = Image.new('RGBA', (16, 14))
+	out_image.paste(in_image.crop((0, 2, 16, 16)), (0, 0))
+	out_image.save(out_path)
+
+	shutil.copyfile(in_path, out_path_wall)
+
+
+def sign_icon_image(material):
+	in_path = f'{in_dir}/assets/minecraft/textures/item/{material}_sign.png'
+	out_path = f'{out_dir}/icon/{material}_sign.png'
+	out_path_wall = f'{out_dir}/icon/{material}_wall_sign.png'
+
+	in_image = Image.open(in_path)
+
+	out_image = Image.new('RGBA', (13, 14))
+	out_image.paste(in_image.crop((2, 2, 15, 16)), (0, 0))
+	out_image.save(out_path)
+
+	out_image = Image.new('RGBA', (13, 9))
+	out_image.paste(in_image.crop((2, 2, 15, 11)), (0, 0))
+	out_image.save(out_path_wall)
+
+
+def hanging_sign_icon_image(material):
+	in_path = f'{in_dir}/assets/minecraft/textures/item/{material}_hanging_sign.png'
+	out_path = f'{out_dir}/icon/{material}_hanging_sign.png'
+	out_path_wall = f'{out_dir}/icon/{material}_hanging_wall_sign.png'
+
+	in_image = Image.open(in_path)
+
+	out_image = Image.new('RGBA', (14, 12))
+	out_image.paste(in_image.crop((1, 3, 15, 15)), (0, 0))
+	out_image.save(out_path)
+
+	out_image = Image.new('RGBA', (14, 14))
+	out_image.paste(in_image.crop((1, 1, 15, 15)), (0, 0))
+	out_image.save(out_path_wall)
+
+for material in MATERIALS:
+	sign_bg_image(material)
+	hanging_sign_bg_image(material)
+	sign_icon_image(material)
+	hanging_sign_icon_image(material)

viewer/images/README.md

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+# README
+
+The images in this directory are assets directly taken from Minecraft, or are derived from Minecraft
+assets. They are copyrighted by Mojang/Microsoft, and are used in accordance with the
+[Minecraft Usage Guidelines](https://www.minecraft.net/en-us/usage-guidelines).
+
+