font_rendering_v6.py

import pygame

fps = 60
x0 = (0,0,0)
grey = (30,30,30)
res = [(256,224),(256,240),(320,224),(320,240),(352,240),(368,240),(384,224),(384,240),(512,224),(512,240),(640,224),(640,240),(320,480),(640,480),(800,600),(1024,768),(1280,800),(1280,900),(1366,768)]
cur_res = res[18]

class BitmapFont:
    def __init__(self, font_image, char_width, char_height):
        self.font_image = pygame.image.load(font_image).convert()
        self.char_width = char_width
        self.char_height = char_height
        self.font_image.set_colorkey(x0)  # Transparency for black

        self.char_map = self.build_char_map()
        self.character_images = self.extract_characters()

    def build_char_map(self):
        char_map = {}
        for i in range(26):  # A-Z
            char_map[chr(ord('A') + i)] = i
        for i in range(10):  # 0–9
            char_map[str(i)] = 26 + i
        char_map[' '] = 36
        char_map['.'] = 37
        char_map['!'] = 38
        char_map['?'] = 39

        char_map[','] = 40
        char_map['-'] = 41
        char_map['_'] = 42
        char_map['('] = 43
        char_map[')'] = 44
        char_map['['] = 45
        char_map[']'] = 46
        char_map['@'] = 47
        char_map[':'] = 48
        char_map[';'] = 49
        char_map['*'] = 50
        char_map["'"] = 51
        char_map['"'] = 52
        char_map['1'] = 53
        char_map['2'] = 54
        char_map['3'] = 55
        char_map['4'] = 56
        char_map['5'] = 57
        char_map['6'] = 58
        char_map['7'] = 59
        char_map['8'] = 60
        char_map['9'] = 61
        char_map['0'] = 62

        return char_map

    def extract_characters(self):
        characters = {}
        total_slots = max(self.char_map.values()) + 1
        for index in range(total_slots):
            x = index * self.char_width
            rect = pygame.Rect(x, 0, self.char_width, self.char_height)
            char_surface = self.font_image.subsurface(rect).copy()
            char_surface.set_colorkey(x0)
            characters[index] = char_surface
        return characters

    def render_text(self, text, surface, x, y, letter_spacing=0, color=(255, 255, 255)):
        for char in text.upper():
            index = self.char_map.get(char)
            if index is not None and index in self.character_images:
                image = self.character_images[index]
                tinted = image.copy()
                tinted.fill(color, special_flags=pygame.BLEND_RGB_MULT)
                surface.blit(tinted, (x, y))
            x += self.char_width + letter_spacing


class TextObject:
    def __init__(self, text, x, y, spacing=0, color=(255, 255, 255)):
        self.text = text
        self.x = x
        self.y = y
        self.spacing = spacing
        self.color = color


class TextGroupManager:
    def __init__(self, font_renderer):
        self.font_renderer = font_renderer
        self.groups = {}

    def add_text(self, group_name, text, x, y, spacing=0, color=(255, 255, 255)):
        if group_name not in self.groups:
            self.groups[group_name] = []
        self.groups[group_name].append(TextObject(text, x, y, spacing, color))

    def render_all(self, surface):
        for group in self.groups.values():
            for text_obj in group:
                self.font_renderer.render_text(
                    text_obj.text, surface,
                    text_obj.x, text_obj.y,
                    text_obj.spacing,
                    text_obj.color
                )

    def delete_group(self, group_name):
        if group_name in self.groups:
            del self.groups[group_name]

    def clear_all(self):
        self.groups.clear()

if __name__ == "__main__":
    pygame.init()
    screen = pygame.display.set_mode(cur_res)
    clock = pygame.time.Clock()

    # \x30 = 0
    # \x31 = 1
    # \x32 = 2
    # \x33 = 3
    # \x34 = 4
    # \x35 = 5
    # \x36 = 6
    # \x37 = 7
    # \x38 = 8
    # \x39 = Custom Space Character, or Digit 9

    # \x2E = .
    # \x2C = ,
    # \x2A = *
    # \x2D = -
    # \x21 = !
    # \x27 = '
    # \x28 = (
    # \x29 = )
    # \x3A = :
    # \x3B = ;
    # \x3F = ?

    # \x41 = A
    # \x42 = B
    # \x43 = C
    # \x44 = D
    # \x45 = E
    # \x46 = F
    # \x47 = G
    # \x48 = H
    # \x49 = I
    # \x4A = J
    # \x4B = K
    # \x4C = L
    # \x4D = M
    # \x4E = N
    # \x4F = O
    # \x50 = P
    # \x51 = Q
    # \x52 = R
    # \x53 = S
    # \x54 = T
    # \x55 = U
    # \x56 = V
    # \x57 = W
    # \x58 = X
    # \x59 = Y
    # \x5A = Z
    # \x5B = [
    # \x5D = ]
    # \x5F = _
    # \x61 = A
    # \x62 = B
    # \x63 = C
    # \x64 = D
    # \x65 = E
    # \x66 = F
    # \x67 = G
    # \x68 = H
    # \x69 = I
    # \x6A = J
    # \x6B = K
    # \x6C = L
    # \x6D = M
    # \x6E = N
    # \x6F = O
    # \x70 = P
    # \x71 = Q
    # \x72 = R
    # \x73 = S
    # \x74 = T
    # \x75 = U
    # \x76 = V
    # \x77 = W
    # \x78 = X
    # \x79 = Y
    # \x7A = Z

    font_renderer = BitmapFont("font_extended_bw.bmp", 30, 30)
    manager = TextGroupManager(font_renderer)

    manager.add_text("hud", "SCORE 123", 50, 50, spacing=2, color=(255, 255, 0))      # Yellow
    manager.add_text("hud", "LEVEL 7", 50, 90, spacing=2, color=(0, 255, 0))          # Green
    manager.add_text("notification", "MISSION COMPLETE!", 200, 200, spacing=-15, color=(255, 0, 0))  # Red

    running = True
    timer = 0

    while running:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                running = False

        screen.fill(x0)

        if (pygame.time.get_ticks() // 500) % 2 == 0:  # toggle every 500ms
            manager.delete_group("notification")
            manager.add_text("notification", "MISSION COMPLETE!", 200, 200, spacing=-15, color=(255, 0, 0))  # Red

        if (pygame.time.get_ticks() // 1500) % 2 == 0:  # toggle every 1500ms
            manager.delete_group("notification")        
        
        manager.render_all(screen)
        pygame.display.flip()
        clock.tick(fps)

        timer += 1
        if timer == 180:
            manager.delete_group("notification")  # Remove red text after 3 seconds

    pygame.quit()