摩天輪 ：12 車艙繞圓移動 + 中心連線 + 腳架

 import tkinter as tk

from PIL import Image, ImageTk

import math, os

# 畫布與圓形參數

WIDTH, HEIGHT = 600, 600

RADIUS = 200

CENTER_X, CENTER_Y = WIDTH // 2, HEIGHT // 2

ANGLE_STEP = 2  # 每次旋轉角度

# 建立視窗

root = tk.Tk()

root.title("12 車艙繞圓移動 + 中心連線 + 腳架")

canvas = tk.Canvas(root, width=WIDTH, height=HEIGHT, bg="white")

canvas.pack()

# ✅ 加上整個摩天輪的支撐腳架（靜態）

foot_base_y = HEIGHT - 50

foot_width = 120

canvas.create_line(CENTER_X, CENTER_Y, CENTER_X - foot_width, foot_base_y, width=6, fill='black')

canvas.create_line(CENTER_X, CENTER_Y, CENTER_X + foot_width, foot_base_y, width=6, fill='black')

canvas.create_line(CENTER_X - foot_width - 50, foot_base_y,

                   CENTER_X + foot_width + 50, foot_base_y,

                   fill='gray', dash=(4, 4))  # 地面線

# 載入 6 張圖片

photos = []

for i in range(12):

    img_path = os.path.join("unit", f"unit{i%7}.png")

    img = Image.open(img_path).resize((40, 60))

    photo = ImageTk.PhotoImage(img)

    photos.append(photo)

# 建立 6 台車艙，每台車對應一條中心線 + 腳架

cars = []

for i in range(12):

    angle = i * 30

    rad = math.radians(angle)

    x = CENTER_X + RADIUS * math.cos(rad)

    y = CENTER_Y + RADIUS * math.sin(rad)

    car_id = canvas.create_image(x, y, image=photos[i])

    line_id = canvas.create_line(CENTER_X, CENTER_Y, x, y, fill='gray', dash=(4, 2))  # 中心連線

    # 加入左右腳架線（初始位置）

    foot_offset = 20

    leg1 = canvas.create_line(x, y, x - foot_offset, y + foot_offset, fill='black')

    leg2 = canvas.create_line(x, y, x + foot_offset, y + foot_offset, fill='black')

    cars.append({

        'id': car_id,

        'angle': angle,

        'photo': photos[i],

        'line': line_id,

        'leg1': leg1,

        'leg2': leg2

    })

# 動畫更新函數

def move_cars():

    for car in cars:

        car['angle'] = (car['angle'] + ANGLE_STEP) % 360

        rad = math.radians(car['angle'])

        x = CENTER_X + RADIUS * math.cos(rad)

        y = CENTER_Y + RADIUS * math.sin(rad)

        # 更新車艙位置

        canvas.coords(car['id'], x, y)

        # 更新中心連線

        canvas.coords(car['line'], CENTER_X, CENTER_Y, x, y)

        # 更新腳架線（左右分叉）

        foot_offset = 20

        canvas.coords(car['leg1'], x, y, x - foot_offset, y + foot_offset)

        canvas.coords(car['leg2'], x, y, x + foot_offset, y + foot_offset)

    canvas.after(30, move_cars)

move_cars()

root.mainloop()