model.py

import hashlib

from database import User, Score, Config


def hash(string):
    return hashlib.sha256(string.encode()).hexdigest()


def create_user(username, password, is_default=False):
    configs = {
        'Head': '#000000',
        'Body': '#A9A9A9',
        'Background': '#ADD8E6',
        'Level': 2
    }

    user = User.create(username=username, password=password, is_default=is_default)
    for label, value in configs.items():
        Config.create(user=user, label=label, value=value)

    return user


def check_collision(canvas, obj1, obj2):
    """ This func get two objects & check their collision """

    crd_a = canvas.coords(obj1)
    crd_b = canvas.coords(obj2)

    if (crd_a[0] <= crd_b[0] < crd_a[2] or crd_a[0] < crd_b[2] <= crd_a[2]) and \
       (crd_a[1] <= crd_b[1] < crd_a[3] or crd_a[1] < crd_b[3] <= crd_a[3]):
        return True

    return False


def get_position(canvas, item):
    """ return center position of item """

    coords = canvas.coords(item)
    return ((coords[2] - coords[0]) / 2) + coords[0], \
           ((coords[3] - coords[1]) / 2) + coords[1]


def get_coords(x, y, size):
    """ return coords of an object from center & size """

    half_size = size / 2
    return x - half_size, \
           y - half_size, \
           x + half_size, \
           y + half_size


def move(canvas, item, x, y):
    """ give an object, then first move to 0-0 after to x-y """

    item_pos = get_position(canvas, item)
    canvas.move(item, -item_pos[0], -item_pos[1])
    canvas.move(item, x, y)