# import modules
from tkinter import Tk, Button, Label
from tkinter import Canvas
from random import randint

# defining Tk from Tkinter 
tk = Tk()
# Set window title and icon
tk.title("Catch-The-Ball")
tk.iconbitmap("logo-ico.ico")
tk.resizable(False, False)

# For defining the canvas
canvas = Canvas(tk, width=600, height=600, bg='#ffff99')
canvas.pack()

# Variable for the vertical distance travelled by ball
limit = 0

# Variable for horizontal distance of bar from x-axis
dist = 5

# Variable for score
score = 0

# Class for the Creating and moving ball
class Ball:
    # for creation of ball on the canvas
    def __init__(self, canvas, x1, y1, x2, y2):
        self.x1 = x1
        self.y1 = y1
        self.x2 = x2
        self.y2 = y2
        self.canvas = canvas
        # for creation of ball object
        self.ball = canvas.create_oval(self.x1, self.y1, self.x2, self.y2,
                                       fill="red", tags='dot1')

    # for moving the ball
    def move_ball(self):

        # defining offset
        offset = 10
        global limit

        # checking if ball lands ground or bar
        if limit >= 510:
            global dist, score, next

            # checking that ball falls on the bar
            if (dist - offset <= self.x1 and
                    dist + 40 + offset >= self.x2):

                # incrementing the score
                score += 10

                # dissappear the ball
                canvas.delete('dot1')

                # calling the function for again
                # creation of ball object
                ball_set()

            else:
                # dissappear the ball
                canvas.delete('dot1')
                bar.delete_bar(self)

                # display the score
                score_board()
            return

        # incrementing the vertical distance
        # travelled by ball by deltay
        limit += 1

        # moving the ball in vertical direction
        # by taking x=0 and y=deltay
        self.canvas.move(self.ball, 0, 1)

        # for continuous moving of ball again call move_ball
        self.canvas.after(10, self.move_ball)

    # class for creating and moving bar

class bar:
    # method for creating bar
    def __init__(self, canvas, x1, y1, x2, y2):
        self.x1 = x1
        self.y1 = y1
        self.x2 = x2
        self.y2 = y2
        self.canvas = canvas

        # for creating bar using create_rectangle
        self.rod = canvas.create_rectangle(self.x1, self.y1, self.x2, self.y2,
                                           fill="#0000ff", tags='dot2')

    # method for moving the bar
    def move_bar(self, num):
        global dist
        # checking the forward or backward button
        if (num == 1):

            # moving the bar in forward direction by
            # taking x-axis positive distance and
            # taking vertical distance y=0
            self.canvas.move(self.rod, 20, 0)

            # incrementing the distance of bar from x-axis
            dist += 20
        else:

            # moving the bar in backward direction by taking x-axis
            # negative distance and taking vertical distance y=0
            self.canvas.move(self.rod, -20, 0)

            # decrementing the distance of bar from x-axis
            dist -= 20

    def delete_bar(self):
        canvas.delete('dot2')

    # Function to define the dimensions of the ball


def ball_set():
    global limit
    limit = 0

    # for random x-axis distance from
    # where the ball starts to fall
    value = randint(0, 570)

    # define the dimensions of the ball
    ball1 = Ball(canvas, value, 20, value + 30, 50)

    # call function for moving of the ball
    ball1.move_ball()


# Function for displaying the score
# after getting over of the game 
def score_board():
    root2 = Tk()
    root2.title("Catch the ball Game")
    root2.resizable(False, False)
    canvas2 = Canvas(root2, width=300, height=300)
    canvas2.pack()

    w = Label(canvas2, text="\nOOPS...GAME IS OVER\n\nYOUR SCORE = "
                            + str(score) + "\n\n")
    w.pack()

    button3 = Button(canvas2, text="PLAY AGAIN", bg="#ffb31a",
                     command=lambda: play_again(root2))
    button3.pack()

    button4 = Button(canvas2, text="EXIT", bg="#ffb31a",
                     command=lambda: exit_handler(root2))
    button4.pack()


# Function for handling the play again request
def play_again(root2):
    root2.destroy()
    main()


# Function for handling exit request
def exit_handler(root2):
    root2.destroy()
    tk.destroy()


# Main function
def main():
    global score, dist
    score = 0
    dist = 0

    # defining the dimensions of bar
    bar1 = bar(canvas, 5, 560, 45, 575)

    # defining the text,colour of buttons and
    # also define the action after click on
    # the button by calling suitable methods
    button = Button(canvas, text="==>", bg="#00ff00",
                    command=lambda: bar1.move_bar(1))

    # placing the buttons at suitable location on the canvas
    button.place(x=300, y=580)

    button2 = Button(canvas, text="<==", bg="#00ff00",
                     command=lambda: bar1.move_bar(0))
    button2.place(x=260, y=580)

    # calling the function for defining
    # the dimensions of ball
    ball_set()
    tk.mainloop()


# Main code
if (__name__ == "__main__"):
    main()