# -*- encoding=utf-8 -*-
from __future__ import print_function
O.materials.append(FrictMat(young=30e9, poisson=.2, density=4000, frictionAngle=.5))
O.bodies.append([sphere((0, 0, 0), 1, fixed=True), sphere((0, 0, 2.1), 1)])
O.engines = [
        ForceResetter(),
        InsertionSortCollider([Bo1_Sphere_Aabb()]),
        InteractionLoop([Ig2_Sphere_Sphere_ScGeom()], [Ip2_FrictMat_FrictMat_FrictPhys()], [Law2_ScGeom_FrictPhys_CundallStrack()]),
        NewtonIntegrator(label='newton', gravity=(0, 0, -9.81))
]
O.dt = PWaveTimeStep()

disp = typedEngine('InteractionLoop')

disp.callbacks = [SumIntrForcesCb()]
#newton.callbacks=[SumBodyForcesCb()]
print(O.numThreads)
O.step()
