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o3de/Gems/PhysX/Code/Editor/EditorSubComponentModeLinea...

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C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include <AzCore/Component/TransformBus.h>
#include <AzCore/std/smart_ptr/intrusive_ptr.h>
#include <AzToolsFramework/Manipulators/LinearManipulator.h>
#include <AzToolsFramework/Manipulators/ManipulatorManager.h>
#include <Editor/EditorJointComponentMode.h>
#include <Editor/EditorSubComponentModeLinear.h>
#include <PhysX/EditorJointBus.h>
#include <Source/Utils.h>
namespace PhysX
{
EditorSubComponentModeLinear::EditorSubComponentModeLinear(
const AZ::EntityComponentIdPair& entityComponentIdPair
, const AZ::Uuid& componentType
, const AZStd::string& name
, float exponent
, float max
, float min)
: EditorSubComponentModeBase(entityComponentIdPair, componentType, name)
, m_exponent(exponent)
, m_inverseExponent(1.0f/exponent)
, m_max(max)
, m_min(min)
{
AZ::Transform worldTransform = PhysX::Utils::GetEntityWorldTransformWithoutScale(m_entityComponentId.GetEntityId());
AZ::Transform localTransform = AZ::Transform::CreateIdentity();
EditorJointRequestBus::EventResult(
localTransform, m_entityComponentId
, &EditorJointRequests::GetTransformValue
, PhysX::EditorJointComponentMode::s_parameterTransform);
m_manipulator = AzToolsFramework::LinearManipulator::MakeShared(worldTransform);
m_manipulator->AddEntityComponentIdPair(m_entityComponentId);
m_manipulator->SetAxis(AZ::Vector3::CreateAxisX());
m_manipulator->SetLocalTransform(localTransform);
Refresh();
const AZ::Color manipulatorColor(0.3f, 0.3f, 0.3f, 1.0f);
const float manipulatorSize = 0.05f;
AzToolsFramework::ManipulatorViews views;
views.emplace_back(AzToolsFramework::CreateManipulatorViewQuadBillboard(manipulatorColor
, manipulatorSize));
m_manipulator->SetViews(AZStd::move(views));
struct SharedState
{
float m_startingValue = 0.0f;
};
auto sharedState = AZStd::make_shared<SharedState>();
m_manipulator->InstallLeftMouseDownCallback(
[this, sharedState](const AzToolsFramework::LinearManipulator::Action& /*action*/) mutable
{
float currentValue = 0.0f;
EditorJointRequestBus::EventResult(
currentValue, m_entityComponentId
, &EditorJointRequests::GetLinearValue
, m_name);
sharedState->m_startingValue = currentValue;
});
m_manipulator->InstallMouseMoveCallback(
[this, sharedState](const AzToolsFramework::LinearManipulator::Action& action)
{
const float axisDisplacement = action.LocalPositionOffset().Dot(action.m_fixed.m_axis);
float newValue = AZ::GetClamp(sharedState->m_startingValue + DisplacementToDeltaValue(axisDisplacement), m_min, m_max);
EditorJointRequestBus::Event(
m_entityComponentId
, &EditorJointRequests::SetLinearValue
, m_name
, newValue);
const AZ::Vector3 localPosition = action.LocalPosition().GetMax(AZ::Vector3(0.01f, 0.0f, 0.0f));
m_manipulator->SetLocalTransform(AZ::Transform::CreateTranslation(localPosition));
m_manipulator->SetBoundsDirty();
});
m_manipulator->Register(AzToolsFramework::g_mainManipulatorManagerId);
}
EditorSubComponentModeLinear::~EditorSubComponentModeLinear()
{
m_manipulator->Unregister();
}
void EditorSubComponentModeLinear::Refresh()
{
float currentValue = 0.0f;
EditorJointRequestBus::EventResult(
currentValue, m_entityComponentId
, &EditorJointRequests::GetLinearValue
, m_name);
m_manipulator->SetLocalTransform(AZ::Transform::CreateTranslation(AZ::Vector3::CreateAxisX() * ValueToDisplacement(currentValue)));
}
float EditorSubComponentModeLinear::DisplacementToDeltaValue(float displacement) const
{
if (displacement > 0.0f)
{
return powf(displacement, m_exponent);
}
else if (displacement < 0.0f)
{
return -powf(fabsf(displacement), m_exponent);
}
else
{
return 0.0f;
}
}
float EditorSubComponentModeLinear::ValueToDisplacement(float value) const
{
return powf(value, m_inverseExponent);
}
} // namespace PhysX