Rename to final folder name
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AMZN-AlexOteiza
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"""
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Copyright (c) Contributors to the Open 3D Engine Project.
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For complete copyright and license terms please see the LICENSE at the root of this distribution.
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SPDX-License-Identifier: Apache-2.0 OR MIT
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"""
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# Test case ID : C4044459
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# Test Case Title : Verify the functionality of dynamic friction
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# fmt: off
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class Tests():
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enter_game_mode = ("Entered game mode", "Failed to enter game mode")
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find_ramp = ("Ramp entity found", "Ramp entity not found")
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find_box_zero = ("Box entity 'zero' found", "Box entity 'zero' not found")
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find_box_low = ("Box entity 'low' found", "Box entity 'low' not found")
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find_box_mid = ("Box entity 'mid' found", "Box entity 'mid' not found")
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find_box_high = ("Box entity 'high' found", "Box entity 'high' not found")
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box_at_rest_start_zero = ("Box 'zero' began test motionless", "Box 'zero' did not begin test motionless")
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box_at_rest_start_low = ("Box 'low' began test motionless", "Box 'low' did not begin test motionless")
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box_at_rest_start_mid = ("Box 'mid' began test motionless", "Box 'mid' did not begin test motionless")
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box_at_rest_start_high = ("Box 'high' began test motionless", "Box 'high' did not begin test motionless")
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box_was_pushed_zero = ("Box 'zero' moved", "Box 'zero' did not move before timeout")
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box_was_pushed_low = ("Box 'low' moved", "Box 'low' did not move before timeout")
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box_was_pushed_mid = ("Box 'mid' moved", "Box 'mid' did not move before timeout")
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box_was_pushed_high = ("Box 'high' moved", "Box 'high' did not move before timeout")
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box_at_rest_end_zero = ("Box 'zero' came to rest", "Box 'zero' did not come to rest before timeout")
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box_at_rest_end_low = ("Box 'low' came to rest", "Box 'low' did not come to rest before timeout")
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box_at_rest_end_mid = ("Box 'mid' came to rest", "Box 'mid' did not come to rest before timeout")
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box_at_rest_end_high = ("Box 'high' came to rest", "Box 'high' did not come to rest before timeout")
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distance_ordered = ("Boxes with greater dynamic friction traveled shorter", "Boxes with greater dynamic friction traveled further")
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exit_game_mode = ("Exited game mode", "Couldn't exit game mode")
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# fmt: on
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def Material_DynamicFriction():
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"""
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Summary:
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Runs an automated test to ensure that greater dynamic friction coefficient settings on a physX material results in
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rigidbody entities (with that material) that require a greater force in order to remain in motion
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Level Description:
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Four boxes sit on a horizontal 'ramp'. The boxes are identical, save for their physX material:
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A new material library was created with 4 materials and their dynamic friction coefficient:
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zero_dynamic_friction: 0.00
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low_dynamic_friction: 0.50
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mid_dynamic_friction: 1.00
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high_dynamic_friction: 1.50
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Each material is identical otherwise.
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Each box is assigned its corresponding friction material
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Each box also has a PhysX box collider with default settings
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The COM of the boxes is placed on the plane (0, 0, -0.5), so as to remove any torque moments and resulting rotations
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Expected Behavior:
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For each box, this script will apply a force impulse in the world X direction
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Boxes with greater dynamic friction coefficients should travel a shorter distance along the ramp.
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Test Steps:
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1) Open level
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2) Enter game mode
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3) Find the ramp
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For each box:
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4) Find the box
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5) Ensure the box is stationary
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6) Push the box and wait for it to come to rest
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7) Assert that greater coefficients result in a shorter distance travelled
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8) Exit game mode
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9) Close the editor
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Note:
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- This test file must be called from the Open 3D Engine Editor command terminal
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- Any passed and failed tests are written to the Editor.log file.
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Parsing the file or running a log_monitor are required to observe the test results.
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:return: None
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"""
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import os
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import sys
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from editor_python_test_tools.utils import Report
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from editor_python_test_tools.utils import TestHelper as helper
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import azlmbr
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import azlmbr.legacy.general as general
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import azlmbr.bus as bus
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import azlmbr.math as lymath
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FORCE_IMPULSE = lymath.Vector3(10.0, 0.0, 0.0)
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TIMEOUT = 5
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class Box:
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def __init__(self, name, valid_test, stationary_start_test, moved_test, stationary_end_test):
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self.name = name
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self.id = general.find_game_entity(name)
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self.start_position = self.get_position()
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self.distance = 0.0
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self.valid_test = valid_test
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self.stationary_start_test = stationary_start_test
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self.moved_test = moved_test
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self.stationary_end_test = stationary_end_test
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def is_stationary(self):
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velocity = azlmbr.physics.RigidBodyRequestBus(bus.Event, "GetLinearVelocity", self.id)
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return vector_is_close_to_zero(velocity)
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def get_position(self):
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return azlmbr.components.TransformBus(bus.Event, "GetWorldTranslation", self.id)
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def vector_is_close_to_zero(vector):
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return abs(vector.x) <= 0.001 and abs(vector.y) <= 0.001 and abs(vector.z) <= 0.001
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def push(box):
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azlmbr.physics.RigidBodyRequestBus(bus.Event, "ApplyLinearImpulse", box.id, FORCE_IMPULSE)
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helper.init_idle()
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# 1) Open level
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helper.open_level("Physics", "Material_DynamicFriction")
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# 2) Enter game mode
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helper.enter_game_mode(Tests.enter_game_mode)
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# fmt: off
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# Set up our boxes
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box_zero = Box(
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name = "Zero",
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valid_test = Tests.find_box_zero,
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stationary_start_test = Tests.box_at_rest_start_zero,
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moved_test = Tests.box_was_pushed_zero,
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stationary_end_test = Tests.box_at_rest_end_zero
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)
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box_low = Box(
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name = "Low",
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valid_test = Tests.find_box_low,
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stationary_start_test = Tests.box_at_rest_start_low,
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moved_test = Tests.box_was_pushed_low,
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stationary_end_test = Tests.box_at_rest_end_low
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)
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box_mid = Box(
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name = "Mid",
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valid_test = Tests.find_box_mid,
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stationary_start_test = Tests.box_at_rest_start_mid,
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moved_test = Tests.box_was_pushed_mid,
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stationary_end_test = Tests.box_at_rest_end_mid
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)
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box_high = Box(
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name = "High",
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valid_test = Tests.find_box_high,
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stationary_start_test = Tests.box_at_rest_start_high,
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moved_test = Tests.box_was_pushed_high,
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stationary_end_test = Tests.box_at_rest_end_high
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)
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all_boxes = (box_zero, box_low, box_mid, box_high)
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# fmt: on
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# 3) Find the ramp
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ramp_id = general.find_game_entity("Ramp")
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Report.critical_result(Tests.find_ramp, ramp_id.IsValid())
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for box in all_boxes:
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Report.info("********Pushing Box {}********".format(box.name))
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# 4) Find the box
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Report.critical_result(box.valid_test, box.id.IsValid())
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# 5) Ensure the box is stationary
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Report.result(box.stationary_start_test, box.is_stationary())
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# 6) Push the box
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push(box)
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Report.result(box.moved_test, helper.wait_for_condition(lambda: not box.is_stationary(), TIMEOUT))
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Report.result(box.stationary_end_test, helper.wait_for_condition(lambda: box.is_stationary(), TIMEOUT))
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end_position = box.get_position()
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box.distance = end_position.GetDistance(box.start_position)
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Report.info("Box {} travelled {:.3f} meters".format(box.name, box.distance))
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# 7) Assert that greater coefficients result in shorter travelled distance
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distance_ordered = box_high.distance < box_mid.distance < box_low.distance < box_zero.distance
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Report.result(Tests.distance_ordered, distance_ordered)
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# 8) Exit game mode
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helper.exit_game_mode(Tests.exit_game_mode)
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if __name__ == "__main__":
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from editor_python_test_tools.utils import Report
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Report.start_test(Material_DynamicFriction)
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