fignum = 0
t = 0
while t <= T:
for i, b in enumerate(bodies):
b.a = Vector(0, 0, 0)
for other in bodies[i + 1:]:
f = b.force(other)
b.a += f / b.m
other.a -= f / other.m
for b in bodies:
b.step(dt)
t += dt
if plot:
fig = plt.figure()
axes = Axes3D(fig)
for b in bodies:
b.plot(axes)
plt.savefig('{0}{1:05.0f}.png'.format(savedir, fignum))
plt.close('all')
fignum += 1
if __name__ == '__main__':
reader = Reader(sys.argv[1])
bodies = reader.getBodies()
fig = plt.figure()
sim(bodies, dt = 1, T = 3600, plot = True, savedir = sys.argv[2])
