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""" text.fonts - .FNT file loading and storing """
import os
from pathlib import Path
import pygame
DEBUG = os.getenv("DEBUG")
class Fonts:
""" Fonts - static class to store loaded fonts """
def __init__(self):
self.fonts = {}
def init(self, base_path):
""" loads fonts found in assets directory """
for fnt_file in Path(base_path).glob('*.fnt'):
self.fonts[str(fnt_file.stem)] = Font(fnt_file)
class Font:
""" Font - font surfaces to be loaded from file """
def __init__(self, filename, height = 16):
if DEBUG:
print(f"Loading font {filename = }")
self.surfaces = []
with open(filename, mode="rb") as fnt_file:
for _ in range(256):
surface = pygame.Surface((8,height), pygame.SRCALPHA)
for line in range(16):
byte = fnt_file.read(1)[0]
if line >= height:
continue
for bit in range(8):
if byte & 0x80:
surface.set_at((bit,line),"white")
byte <<= 1
self.surfaces.append(surface)
def get(self, ch):
""" Just get surface of the font size 8x16 max """
return self.surfaces[ch%256]
# Initialize only one time
try:
# pylint: disable = used-before-assignment
# This is intented behaviour
fonts
except NameError:
fonts = Fonts()
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