import matplotlib.pyplot as plt
import numpy as np
from matplotlib.animation import FuncAnimation
from matplotlib.colors import ListedColormap

# --- ドット文字定義（簡略版） ---
H = np.array([
    [1,0,0,1],
    [1,0,0,1],
    [1,1,1,1],
    [1,0,0,1],
    [1,0,0,1],
])

E = np.array([
    [1,1,1,1],
    [1,0,0,0],
    [1,1,1,0],
    [1,0,0,0],
    [1,1,1,1],
])

L = np.array([
    [1,0,0,0],
    [1,0,0,0],
    [1,0,0,0],
    [1,0,0,0],
    [1,1,1,1],
])

O = np.array([
    [0,1,1,0],
    [1,0,0,1],
    [1,0,0,1],
    [1,0,0,1],
    [0,1,1,0],
])

# --- 単語を結合 ---
space = np.zeros((5,1))
HELLO = np.hstack((H, space, E, space, L, space, L, space, O))

# --- 描画設定 ---
fig, ax = plt.subplots()
cmap = ListedColormap(["white", "black"])
im = ax.imshow(HELLO, cmap=cmap, interpolation='nearest')
ax.axis('off')

# --- アニメーション関数（点滅）---
def update(frame):
    if frame % 2 == 0:
        im.set_array(HELLO)
    else:
        im.set_array(np.zeros_like(HELLO))
    return [im]

ani = FuncAnimation(fig, update, frames=20, interval=500, blit=True)
plt.show()