class TestLeftRotationalPhysicsVector(object):
def setup(self):
position = Offsets(1, 0, 0)
forces = Offsets(0, 0, -1)
self.target = Force(position, forces)
def test_position_direction(self):
assert self.target.position.direction == [0, -90, 0]
def test_force_direction(self):
assert self.target.forces.direction == [0, 0, 0]
def test_diff(self):
assert self.target.diff_yaw_of_force_to_pos() == 90
def test_vector_impacts_yaw_positively(self):
assert 0 < self.target.yaw_momentum
def test_c_radian(self):
assert self.target.radians_force_is_lateral_to_position() == 0
def test_vector_does_not_move_object(self):
x, y, z = self.target.translation_forces()
assert 0 == round(x, 6)
assert 0 == round(y, 6)
assert -1 == round(z, 6)
class TestRotatingAForce(object):
def setup(self):
position = Offsets(1, 0, -1)
forces = Offsets(-1, 0, 0)
self.target = Force(position, forces)
self.target.force_multiplier = 1.0
def test_no_rotation_changes_nothing(self):
target = self.target.rotated(0)
assert target.forces == self.target.forces
assert target.position == self.target.position
def test_positive_rotation_90_degrees_rotates_forces(self):
target = self.target.rotated(90)
assert round(target.forces.x, 3) == 0
assert target.forces.y == 0
assert target.forces.z == -1
class TestVectorThroughCenterOfMassFromLeft(object):
def setup(self):
position = Offsets(-1, 0, 0)
forces = Offsets(1, 0, 0)
self.target = Force(position, forces)
self.target.force_multiplier = 1.0
def test_object_moves_right(self):
x, y, z = self.target.translation_forces()
assert 1 == round(x, 6)
assert 0 == round(y, 6)
assert 0 == round(z, 6)
class TestHorizontalForce45DegreesOff(object):
def setup(self):
position = Offsets(1, 0, -1)
forces = Offsets(-1, 0, 0)
self.target = Force(position, forces)
self.target.force_multiplier = 1.0
def test_object_moves_left(self):
x, y, z = self.target.translation_forces()
assert -1.0 == round(x, 1)
assert 0 == round(y, 6)
assert 0 == round(z, 1)
class TestForceAtPositiveXAndYOffset(object):
def setup(self):
position = Offsets(1, 0, 1)
forces = Offsets(0, 0, -1)
self.target = Force(position, forces)
self.target.force_multiplier = 1.0
def test_object_moves_forwards(self):
x, y, z = self.target.translation_forces()
assert 0 == round(x, 6)
assert 0 == round(y, 6)
assert -1.0 == round(z, 1)
def test_rotational_force_rotates_positive_yaw(self):
assert self.target.yaw_momentum > 0
class TestVectorThroughCenterOfMassFromRight(object):
def setup(self):
position = Offsets(1, 0, 0)
forces = Offsets(-1, 0, 0)
self.target = Force(position, forces)
self.target.force_multiplier = 1.0
def test_position_direction_is_90(self):
assert self.target.position.direction == Offsets(0, -90, 0)
def test_object_moves_left(self):
x, y, z = self.target.translation_forces()
assert -1 == round(x, 6)
assert 0 == round(y, 6)
assert 0 == round(z, 6)
class TestRightRotationalPhysicsVector(object):
def setup(self):
position = Offsets(-1, 0, 0)
forces = Offsets(0, 0, -1)
self.target = Force(position, forces)
def test_position_direction(self):
assert self.target.position.direction == [0, 90, 0]
def test_force_direction(self):
assert self.target.forces.direction == [0, 0, 0]
def test_vector_impacts_yaw_negatively(self):
assert 0 > self.target.yaw_momentum
def test_vector_does_not_move_object(self):
x, y, z = self.target.translation_forces()
assert 0 == round(x, 6)
assert 0 == round(y, 6)
assert -1 == round(z, 6)
def setup(self):
position = Offsets(1, 0, 1)
forces = Offsets(0, 0, -1)
self.target = Force(position, forces)
self.target.force_multiplier = 1.0
def setup(self):
position = Offsets(-1, 0, 0)
forces = Offsets(0, 0, -1)
self.target = Force(position, forces)
def setup(self):
self.left_force = Force(Offsets(-1, 0, 0), Offsets(0, 0, -1))
self.right_force = Force(Offsets(1, 0, 0), Offsets(0, 0, -1))
self.force = self.left_force + self.right_force
self.force.force_multiplier = 1.0