Function create_gradient_background

RoverSign/roversign_sign/main.py:577–601

使用 PIL 创建渐变背景 start_color: 起始颜色，如 (230, 230, 255) 浅蓝 end_color: 结束颜色，默认白色

(width, height, start_color, end_color=(255, 255, 255))

    # 签到失败
    logger.error(f"[库洛签到·战双签到] 签到失败: code={sign_in_res.code}, msg={sign_in_res.msg}, data={sign_in_res.data}")
    return f"签到失败：{sign_in_res.msg}"


def create_gradient_background(width, height, start_color, end_color=(255, 255, 255)):
    """
    使用 PIL 创建渐变背景
    start_color: 起始颜色，如 (230, 230, 255) 浅蓝
    end_color: 结束颜色，默认白色
    """
    # 创建新图像
    image = Image.new("RGB", (width, height))

    for y in range(height):
        # 计算当前行的颜色比例
        ratio = y / height

        # 计算当前行的 RGB 值
        r = int(end_color[0] * ratio + start_color[0] * (1 - ratio))
        g = int(end_color[1] * ratio + start_color[1] * (1 - ratio))
        b = int(end_color[2] * ratio + start_color[2] * (1 - ratio))

        # 创建当前行的颜色
        line_color = (r, g, b)
        # 绘制当前行
        for x in range(width):
            image.putpixel((x, y), line_color)