import tkinter as tk
import math
import random
import colorsys

BALL_COUNT = 500
SPEED_RANGE = (1, 4)
RADIUS_RANGE = (5, 15)

root = tk.Tk()
root.geometry("800x600")
root.title("Пастельные мячики")
canvas = tk.Canvas(root, bg="white")
canvas.pack(fill=tk.BOTH, expand=True)

target_x, target_y = 300, 200

canvas.bind("<Motion>", lambda e: update_target(e))
canvas.bind("<Button-1>", lambda e: repel_balls(e.x, e.y))

balls = []

def pastel_color():
    h = random.random()
    s = 0.4  # низкая насыщенность
    v = 0.95  # высокая яркость
    r, g, b = colorsys.hsv_to_rgb(h, s, v)
    return f"#{int(r*255):02x}{int(g*255):02x}{int(b*255):02x}"

def update_target(event):
    global target_x, target_y
    target_x = event.x
    target_y = event.y

for _ in range(BALL_COUNT):
    r = random.randint(*RADIUS_RANGE)
    x = random.randint(r, 800 - r)
    y = random.randint(r, 600 - r)
    color = pastel_color()
    speed = random.uniform(*SPEED_RANGE)
    ball_id = canvas.create_oval(x - r, y - r, x + r, y + r, fill=color, outline="")
    balls.append({
        "x": x,
        "y": y,
        "vx": 0,
        "vy": 0,
        "r": r,
        "speed": speed,
        "id": ball_id,
        "color": color,
        "repel_timer": 0,
    })

def repel_balls(cx, cy):
    for ball in balls:
        dx = ball["x"] - cx
        dy = ball["y"] - cy
        dist = math.hypot(dx, dy) + 0.01
        if dist < 200:
            force = 12 / dist
            ball["vx"] += force * dx
            ball["vy"] += force * dy
            ball["repel_timer"] = 20

def move_balls():
    for ball in balls:
        if ball["repel_timer"] > 0:
            ball["x"] += ball["vx"]
            ball["y"] += ball["vy"]
            ball["vx"] *= 0.9
            ball["vy"] *= 0.9
            ball["repel_timer"] -= 1
        else:
            dx = target_x - ball["x"]
            dy = target_y - ball["y"]
            dist = math.hypot(dx, dy)
            if dist > 1:
                step_x = ball["speed"] * dx / dist
                step_y = ball["speed"] * dy / dist
                ball["x"] += step_x
                ball["y"] += step_y

        r = ball["r"]
        canvas.coords(ball["id"],
                      ball["x"] - r, ball["y"] - r,
                      ball["x"] + r, ball["y"] + r)
    root.after(16, move_balls)

move_balls()
root.mainloop()