89 lines
2.8 KiB
Python
89 lines
2.8 KiB
Python
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#!/usr/bin/env python3
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from PIL import Image
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import sys
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import os
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BASE_DIR = 'imgs'
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COMPOSE_TILESHEETS = True
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TILESHEET_WIDTH = 512
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TILESHEET_HEIGTH = 2048
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class Row():
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def __init__(self, width=TILESHEET_WIDTH, height=32):
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self.width = width
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self.height = height
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self.remainingWidth = width
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self.sprites = []
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def append(self, Img):
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x,y = Img.size
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if (self.remainingWidth - x) < 0:
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raise Exception('ImageTooLarge')
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self.height = max(self.height, y)
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if self.height > TILESHEET_HEIGTH:
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raise Exception("Tilesheet full")
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self.remainingWidth = self.remainingWidth - x
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self.sprites.append(Img.convert(mode='RGBA'))
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return self.remainingWidth
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def render(self):
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row = Image.new('RGBA', (self.width, self.height),(255,255,255,0))
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x_offset = 0
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for img in self.sprites:
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x,y = img.size
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row.alpha_composite(img, (x_offset,0))
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x_offset += x
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return row
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class Spritesheet():
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def __init__(self, width=TILESHEET_WIDTH, height=TILESHEET_HEIGTH):
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self.width = width
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self.height = height
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self.rows = []
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def append(self, Img):
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x,y = Img.size
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# self.height += y
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self.rows.append(Img)
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def render(self):
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sheet = Image.new('RGBA', (self.width, self.height),(255,255,255,0))
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y_offset = 0
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for img in self.rows:
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x,y = img.size
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sheet.alpha_composite(img, (0,y_offset))
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y_offset += y
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return sheet
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if __name__ == "__main__":
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print("Check images dimensions")
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print('Absolute path:', os.getcwd() + '/imgs')
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for root, dirs, files in os.walk(BASE_DIR):
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for file in files:
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if file.endswith('.png'):
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x,y = Image.open(os.path.join(root, file)).size
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if not(x % 32 == y % 32 == 0 and x <= TILESHEET_WIDTH):
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sys.exit("%s has wrong dimensions." % file)
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if COMPOSE_TILESHEETS:
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print("Generate Tilesheets")
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for dir in os.listdir(BASE_DIR):
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if dir != "tilesheets":
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name = dir
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print("Processing:", dir)
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sheet = Spritesheet()
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row = Row()
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for file in sorted(os.listdir(os.path.join(BASE_DIR, dir)),key=str.lower):
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try:
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if file.endswith('.png'):
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row.append(Image.open(os.path.join(BASE_DIR, dir, file)))
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except:
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# new row
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sheet.append(row.render())
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row = Row()
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row.append(Image.open(os.path.join(BASE_DIR, dir, file)))
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sheet.append(row.render())
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sheet.render().save(os.path.join(BASE_DIR, 'tilesheets', name + '.png'))
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