if (p.loc - center.loc).magnitude() < 100:
f = center.grav_attract(p)
p.apply_force(f*-0.6) # Repels
s.apply_force(PVector(0, 0.05))
s.run(canvas)
s.add_particle()
s.particles[len(s.particles)-1].vec = PVector(4*(random()-0.5),
4*(random()-0.5))
canvas.after(D_STEP, draw)
root = tkinter.Tk()
root.title("Particle Shower")
canvas = tkinter.Canvas(root, height=C_HEIGHT, width=C_WIDTH)
canvas.pack(expand="YES")
canvas.configure(background="white")
center = Mover(PVector(C_WIDTH/2, C_HEIGHT/2),
PVector(0, 0), PVector(0, 0), 20)
center.display(canvas)
ps = []
ps.append(ParticleSystem(PVector(C_WIDTH/5, C_HEIGHT/8)))
ps.append(ParticleSystem(PVector(2*(C_WIDTH/5), C_HEIGHT/8)))
ps.append(ParticleSystem(PVector(3*(C_WIDTH/5), C_HEIGHT/8)))
ps.append(ParticleSystem(PVector(4*(C_WIDTH/5), C_HEIGHT/8)))
canvas.after(1, draw)
canvas.mainloop()
def draw():
global mouse, sat
# print(mouse.loc.x, mouse.loc.y)
f = mouse.grav_attract(sat)
sat.apply_force(f)
sat.check_edges(C_WIDTH, C_HEIGHT)
sat.display()
sat.update()
canvas.after(D_STEP, draw)
root = tkinter.Tk()
root.title("Mouse Attractor")
canvas = tkinter.Canvas(root, height=C_HEIGHT, width=C_WIDTH)
canvas.pack(expand="YES")
canvas.configure(background="white")
mouse = Mover(PVector(C_WIDTH / 2, C_HEIGHT / 2), PVector(0, 0), PVector(0, 0), 20)
Mover.display = _sat_display
sat = Mover(PVector(C_WIDTH / 2, C_HEIGHT / 2), PVector(0, 0), PVector(0, 0), 10)
sat.canvas_id2 = 0
sat.elast = -0.5
root.bind("<Motion>", on_mouse_move)
canvas.after(1, draw)
canvas.mainloop()