import time, math
from tkinter import *
from random import randint
width = 700
height = 700
r = 10


class Game():
    def __init__(self, width = 1000, height = 1000):
        self.root = Tk()
        self.root.title("Kim_Chen_In")
        self.root.resizable(False,False)
        self.canvas = Canvas(self.root, width = width, height = height, highlightthickness = 0)
        self.canvas.pack()
        self.root.update()
        self.sprite = []
        self.width = self.canvas.winfo_width()
        self.height = self.canvas.winfo_height()

    def mainloop(self):
        while True:
            for z in self.sprite:
                z.move()
            self.colision_with_borders()
            self.colision_with_sprites()
            self.root.update_idletasks()
            self.root.update()
            time.sleep(1/100)

    def get_center(self, obj1):
        obj1_x1, obj1_y1, obj1_x2, obj1_y2 = self.canvas.coords(obj1.ball)
        obj1_center = ((obj1_x2 + obj1_x1)/2, (obj1_y2 + obj1_y1)/2)
        return obj1_center

    def get_dist(self,obj1_center, obj2_center):
        kx = obj1_center[0] - obj2_center[0]
        ky = obj1_center[1] - obj2_center[1]
        g = math.sqrt(kx ** 2 + ky ** 2)
        return g


    def colision_with_sprites(self):
        remove_sprites = []
        for i in range(len(self.sprite)-1):
            for k in range(i+1,len(self.sprite)):
                if self.sprite[i].team == self.sprite[k].team:
                    continue
                i_center = self.get_center(self.sprite[i])
                k_center = self.get_center(self.sprite[k])
                if self.get_dist(i_center, k_center) <= self.sprite[i].r + self.sprite[k].r:
                    remove_sprites.append(i)
                    remove_sprites.append(k)
        new_sprites = [self.sprite[w] for w in range(len(self.sprite)) if w not in remove_sprites]
        for i in remove_sprites:
            self.canvas.delete(self.sprite[i].ball)
        self.sprite = new_sprites



    def colision_with_borders(self):
        for i in self.sprite:
            if self.canvas.coords(i.ball)[0] < 0: self.canvas.move(i.ball, self.width, 0)
            if self.canvas.coords(i.ball)[2] > self.width: self.canvas.move(i.ball, -self.width, 0)
            if self.canvas.coords(i.ball)[1] < 0: self.canvas.move(i.ball,  0, self.height)
            if self.canvas.coords(i.ball)[3] > self.height: self.canvas.move(i.ball, 0, -self.height)


class Sprite:
    def __init__(self, game, x, y, r, color):
        self.deltax = 0
        self.deltay = 0
        self.x1 = x-r
        self.y1 = y-r
        self.x2 = x+r
        self.y2 = y+r
        self.r = r
        self.game = game
        self.ball = self.game.canvas.create_oval(self.x1, self.y1, self.x2, self.y2, fill = color)

    def move(self):
        self.game.canvas.move(self.ball, self.deltax, self.deltay)

class Enemy(Sprite):
    def __init__(self, game, x, y, r, color):
        Sprite.__init__(self, game, x, y, r, color)
        self.deltax = randint(-5,5)
        self.deltay = randint(-5,5)

        game.canvas.bind_all('<KeyPress-space>', self.enemy_fire)

    def enemy_fire(self, event):
        x,y = self.game.get_center(self)
        e_deltax = self.deltax
        e_deltay = self.deltay
        ene_bul = Enemy_Bullet(self.game, x+e_deltax+self.r*3, y+e_deltax+self.r*3, 3, e_deltax*2, e_deltay*2, "green")
        self.game.sprite.append(ene_bul)


class Enemy_Bullet(Sprite):
    def __init__(self, game, x, y, r, deltax, deltay, color):
        Sprite.__init__(self, game, x, y, r, color)
        self.deltax = deltax
        self.deltay = deltay

class Bullet(Sprite):
    def __init__(self, game, x, y, r, deltax, deltay, color):
        Sprite.__init__(self, game, x, y, r, color)
        self.deltax = deltax
        self.deltay = deltay


class Tank(Sprite):
    def __init__(self, game, x, y, r, color):
        Sprite.__init__(self, game, x, y, r, color)
        game.canvas.bind_all('<KeyPress-Left>', self.turn_left)
        game.canvas.bind_all('<KeyPress-Right>', self.turn_right)
        game.canvas.bind_all('<KeyPress-Up>', self.turn_up)
        game.canvas.bind_all('<KeyPress-Down>', self.turn_down)
        game.canvas.bind_all('<KeyPress-space>', self.fire)

    def turn_left(self, event):
        self.deltax = self.deltax - 1
    def turn_right(self, event):
        self.deltax = self.deltax + 1
    def turn_up(self, event):
        self.deltay = self.deltay - 1
    def turn_down(self, event):
        self.deltay = self.deltay + 1
    def fire(self,event):
        x,y = self.game.get_center(self)
        b_deltax = self.deltax
        b_deltay = self.deltay
        bul = Bullet(self.game, x+b_deltax+self.r*2, y+b_deltax+self.r*2, 3, b_deltax*1.5, b_deltay*1.5, "black")
        self.game.sprite.append(bul)


g = Game(width, height)
for i in range(1):
    x=randint(r,width-r)
    y=randint(r,height-r)
    g.sprite.append(Enemy(g, x, y, r, 'red'))
    Enemy.team = 0
    Enemy_Bullet.team = 0
    Bullet.team = 1
    Tank.team = 1
g.sprite.append(Tank(g, width/2, height/2, 20, 'black'))


g.mainloop()