minimal_tetris_py/tetris_gui/gpu.py

#!/home/honney/Projects/tetris_gui/.venv/bin/python3
import sys, json, select, os
import pygame

WIDTH, HEIGHT = 1280, 720
CELL = 32
BOARD_H, BOARD_W = 20, 10
NEXT_H, NEXT_W = 4, 4

B1 = (304, 40, 320, 640)
B2 = (656, 40, 320, 640)
N1 = (88, 96, 128, 128)
N2 = (1064, 96, 128, 128)
S1 = (84, 454, 136, 32)
S2 = (1060, 454, 136, 32)

SCORE_FONT = [
    [  # S
        [0,1,1,1,1,0],[1,1,0,0,1,1],[1,1,0,0,0,0],
        [0,1,1,1,0,0],[0,0,1,1,1,0],[0,0,0,0,1,1],
        [1,1,0,0,1,1],[0,1,1,1,1,0],
    ],
    [  # C
        [0,1,1,1,1,0],[1,1,1,0,1,1],[1,1,0,0,0,0],
        [1,1,0,0,0,0],[1,1,0,0,0,0],[1,1,0,0,0,0],
        [1,1,1,0,1,1],[0,1,1,1,1,0],
    ],
    [  # O
        [0,1,1,1,1,0],[1,1,0,0,1,1],[1,1,0,0,1,1],
        [1,1,0,0,1,1],[1,1,0,0,1,1],[1,1,0,0,1,1],
        [1,1,0,0,1,1],[0,1,1,1,1,0],
    ],
    [  # R
        [1,1,1,1,1,0],[1,1,0,0,1,1],[1,1,0,0,1,1],
        [1,1,1,1,1,0],[1,1,0,1,1,1],[1,1,0,0,1,1],
        [1,1,0,0,1,1],[1,1,0,0,1,1],
    ],
    [  # E
        [1,1,1,1,1,1],[1,1,0,0,0,0],[1,1,0,0,0,0],
        [1,1,1,1,1,1],[1,1,0,0,0,0],[1,1,0,0,0,0],
        [1,1,0,0,0,0],[1,1,1,1,1,1],
    ],
]

PALETTE = [
    (0,0,0),(0,255,255),(0,0,255),(255,128,0),
    (255,242,0),(0,255,0),(159,0,255),(255,0,0),
]
PALETTE_ALT = [
    (0,0,0),(0,134,243),(61,79,220),(253,171,1),
    (171,203,4),(2,189,205),(210,15,99),(254,75,15),
]

def bevel_color(r, g, b, x, y, style):
    if style == 0:
        if 8 <= x < 24 and 8 <= y < 24:
            return (r, g, b)
        if 6 <= x < 26 and 6 <= y < 26:
            return (r & 0xB0, g & 0xB0, b & 0xB0)
        if x + y < 31:
            return (r, g, b) if x > y else (r & 0xEF, g & 0xEF, b & 0xEF)
        return (r & 0xD7, g & 0xD7, b & 0xD7) if x > y else (r & 0xC0, g & 0xC0, b & 0xC0)
    if x == 31 or y == 31:
        return (r >> 1, g >> 1, b >> 1) if (x == 0 or y == 0) else (r >> 2, g >> 2, b >> 2)
    if x == 0 or y == 0:
        return (r, g, b)
    return (r & 0xC0, g & 0xC0, b & 0xC0)

def build_blocks(palette, style):
    tex = []
    for clr in palette:
        surf = pygame.Surface((CELL, CELL))
        for y in range(CELL):
            for x in range(CELL):
                surf.set_at((x, y), bevel_color(*clr, x, y, style))
        tex.append(surf)
    return tex

def build_background():
    surf = pygame.Surface((WIDTH, HEIGHT))
    for y in range(HEIGHT):
        for x in range(WIDTH):
            if (x + y) & 1:
                surf.set_at((x, y), (0, 0, 255))
            else:
                v = (x + y) >> 3
                surf.set_at((x, y), (v, 250 - v, 0))
    return surf

def build_score():
    surf = pygame.Surface((136, 32))
    surf.fill((0, 0, 0))
    x_off = 0
    for glyph in SCORE_FONT:
        for fy, row in enumerate(glyph):
            for fx, px in enumerate(row):
                if px:
                    pygame.draw.rect(surf, (255, 255, 255), (x_off + fx * 4, fy * 4, 4, 4))
        x_off += 28
    return surf

class Display:
    def __init__(self):
        pygame.init()
        self.screen = pygame.display.set_mode((WIDTH, HEIGHT))
        pygame.display.set_caption("Tetris")
        self.bg = build_background()
        self.score = build_score()
        self.b1_tex = build_blocks(PALETTE, 0)
        self.b2_tex = build_blocks(PALETTE_ALT, 0)
        self.n1_tex = build_blocks(PALETTE, 1)
        self.n2_tex = build_blocks(PALETTE_ALT, 1)
        self.board1 = [[0] * BOARD_W for _ in range(BOARD_H)]
        self.board2 = [[0] * BOARD_W for _ in range(BOARD_H)]
        self.next1 = [[0] * NEXT_W for _ in range(NEXT_H)]
        self.next2 = [[0] * NEXT_W for _ in range(NEXT_H)]

    def draw_grid(self, board, rect, textures):
        x, y, w, h = rect
        for row in range(h // CELL):
            for col in range(w // CELL):
                v = board[row][col]
                self.screen.blit(textures[v if 0 <= v <= 7 else 0], (x + col * CELL, y + row * CELL))

    def render(self):
        self.screen.blit(self.bg, (0, 0))
        self.draw_grid(self.board1, B1, self.b1_tex)
        self.draw_grid(self.board2, B2, self.b2_tex)
        self.draw_grid(self.next1, N1, self.n1_tex)
        self.draw_grid(self.next2, N2, self.n2_tex)
        self.screen.blit(self.score, (S1[0], S1[1]))
        self.screen.blit(self.score, (S2[0], S2[1]))
        pygame.display.flip()

    def close(self):
        pygame.quit()

def main():
    disp = Display()
    buf = ""
    clock = pygame.time.Clock()
    running = True

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

        if not sys.stdin.isatty():
            r, _, _ = select.select([sys.stdin], [], [], 0)
            if r:
                chunk = os.read(sys.stdin.fileno(), 65536)
                if not chunk:
                    running = False
                else:
                    buf += chunk.decode("utf-8")
                    while "\n" in buf:
                        line, buf = buf.split("\n", 1)
                        line = line.strip()
                        if not line:
                            continue
                        try:
                            data = json.loads(line)
                            if "b1" in data:
                                disp.board1 = data["b1"]
                            if "b2" in data:
                                disp.board2 = data["b2"]
                            if "n1" in data:
                                disp.next1 = data["n1"]
                            if "n2" in data:
                                disp.next2 = data["n2"]
                        except json.JSONDecodeError:
                            pass

        disp.render()
        clock.tick(60)

    disp.close()
    sys.exit()

if __name__ == "__main__":
    main()