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extract reused manipulator scaling logic

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Signed-off-by: greerdv <greerdv@amazon.com>
monroegm-disable-blank-issue-2
greerdv 4 years ago
parent 2ad3cb770b
commit 7a63d33f92
4 changed files with 30 additions and 32 deletions
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27
Code/Framework/AzToolsFramework/AzToolsFramework/ComponentModes/BoxViewportEdit.cpp
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@ -93,29 +93,20 @@ namespace AzToolsFramework
linearManipulator->SetViews(AZStd::move(views));
linearManipulator->InstallMouseMoveCallback(
[this, entityComponentIdPair](
const LinearManipulator::Action& action)
[this, entityComponentIdPair,
transformScale{ linearManipulator->GetSpace().GetUniformScale() }](const LinearManipulator::Action& action)
{
AZ::Transform boxLocalTransform = AZ::Transform::CreateIdentity();
BoxManipulatorRequestBus::EventResult(
boxLocalTransform, entityComponentIdPair, &BoxManipulatorRequests::GetCurrentLocalTransform);
AZ::Transform boxWorldTransform = AZ::Transform::CreateIdentity();
AZ::TransformBus::EventResult(
boxWorldTransform, m_entityComponentIdPair.GetEntityId(), &AZ::TransformBus::Events::GetWorldTM);
float boxScale = AZ::GetMax(AZ::MinTransformScale, boxWorldTransform.GetUniformScale());
// calculate the position of the manipulator in the reference frame of the box
// the local position offset of the manipulator does not take the transform scale into account
// so need to apply it here
const AZ::Vector3 localPosition = boxLocalTransform.GetInverse().TransformPoint(
action.m_start.m_localPosition + action.m_current.m_localPositionOffset / boxScale);
const AZ::Vector3 manipulatorPosition = GetPositionInManipulatorFrame(transformScale, boxLocalTransform, action);
// calculate the amount of displacement along an axis this manipulator has moved
// clamp movement so it cannot go negative based on axis direction
const AZ::Vector3 axisDisplacement =
localPosition.GetAbs() * 2.0f
* AZ::GetMax(0.0f, localPosition.GetNormalized().Dot(action.m_fixed.m_axis));
manipulatorPosition.GetAbs() * 2.0f
* AZ::GetMax(0.0f, manipulatorPosition.GetNormalized().Dot(action.m_fixed.m_axis));
AZ::Vector3 boxDimensions = AZ::Vector3::CreateZero();
BoxManipulatorRequestBus::EventResult(
@ -148,4 +139,12 @@ namespace AzToolsFramework
}
}
}
AZ::Vector3 GetPositionInManipulatorFrame(float worldUniformScale, const AZ::Transform& manipulatorLocalTransform,
const LinearManipulator::Action& action)
{
return manipulatorLocalTransform.GetInverse().TransformPoint(
action.m_start.m_localPosition +
action.m_current.m_localPositionOffset / AZ::GetClamp(worldUniformScale, AZ::MinTransformScale, AZ::MaxTransformScale));
}
} // namespace AzToolsFramework

6
Code/Framework/AzToolsFramework/AzToolsFramework/ComponentModes/BoxViewportEdit.h
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@ -31,4 +31,10 @@ namespace AzToolsFramework
using BoxManipulators = AZStd::array<AZStd::shared_ptr<LinearManipulator>, 6>;
BoxManipulators m_linearManipulators; ///< Manipulators for editing box size.
};
/// Calculates the position of the manipulator in its own reference frame.
/// Removes the effects of the manipulator local transform, and accounts for world transform scale in
/// the action local offset.
AZ::Vector3 GetPositionInManipulatorFrame(float worldUniformScale, const AZ::Transform& manipulatorLocalTransform,
const LinearManipulator::Action& action);
} // namespace AzToolsFramework

19
Gems/PhysX/Code/Editor/ColliderCapsuleMode.cpp
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@ -13,6 +13,7 @@
#include <AzToolsFramework/Manipulators/LinearManipulator.h>
#include <AzToolsFramework/Manipulators/ManipulatorManager.h>
#include <AzToolsFramework/ViewportSelection/EditorSelectionUtil.h>
#include <AzToolsFramework/ComponentModes/BoxViewportEdit.h>
#include <AzCore/Component/TransformBus.h>
#include <AzCore/Component/NonUniformScaleBus.h>
#include <AzFramework/Viewport/ViewportColors.h>
@ -175,15 +176,12 @@ namespace PhysX
void ColliderCapsuleMode::OnRadiusManipulatorMoved(const AzToolsFramework::LinearManipulator::Action& action, const AZ::EntityComponentIdPair& idPair)
{
// manipulator action offsets do not take entity transform scale into account, so need to apply it here
float transformScale = 1.0f;
const AZ::Transform colliderLocalTransform = Utils::GetColliderLocalTransform(idPair);
AZ::TransformBus::EventResult(transformScale, idPair.GetEntityId(), &AZ::TransformBus::Events::GetWorldUniformScale);
transformScale = AZ::GetMax(AZ::MinTransformScale, transformScale);
const AZ::Vector3 localPosition = colliderLocalTransform.GetInverse().TransformPoint(
action.m_start.m_localPosition + action.m_current.m_localPositionOffset / transformScale);
const AZ::Vector3 manipulatorPosition = AzToolsFramework::GetPositionInManipulatorFrame(
m_radiusManipulator->GetSpace().GetUniformScale(), colliderLocalTransform, action);
// Get the distance the manipulator has moved along the axis.
float extent = localPosition.Dot(action.m_fixed.m_axis);
float extent = manipulatorPosition.Dot(action.m_fixed.m_axis);
// Clamp radius to a small value.
extent = AZ::GetMax(extent, MinCapsuleRadius);
@ -201,15 +199,12 @@ namespace PhysX
void ColliderCapsuleMode::OnHeightManipulatorMoved(const AzToolsFramework::LinearManipulator::Action& action, const AZ::EntityComponentIdPair& idPair)
{
// manipulator action offsets do not take entity transform scale into account, so need to apply it here
float transformScale = 1.0f;
const AZ::Transform colliderLocalTransform = Utils::GetColliderLocalTransform(idPair);
AZ::TransformBus::EventResult(transformScale, idPair.GetEntityId(), &AZ::TransformBus::Events::GetWorldUniformScale);
transformScale = AZ::GetMax(AZ::MinTransformScale, transformScale);
const AZ::Vector3 localPosition = colliderLocalTransform.GetInverse().TransformPoint(
action.m_start.m_localPosition + action.m_current.m_localPositionOffset / transformScale);
const AZ::Vector3 manipulatorPosition = AzToolsFramework::GetPositionInManipulatorFrame(
m_heightManipulator->GetSpace().GetUniformScale(), colliderLocalTransform, action);
// Get the distance the manipulator has moved along the axis.
float extent = localPosition.Dot(action.m_fixed.m_axis);
float extent = manipulatorPosition.Dot(action.m_fixed.m_axis);
// Ensure capsule's half height is always greater than the radius.
extent = AZ::GetMax(extent, MinCapsuleHeight);

10
Gems/PhysX/Code/Editor/ColliderSphereMode.cpp
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@ -13,6 +13,7 @@
#include <AzToolsFramework/Manipulators/LinearManipulator.h>
#include <AzToolsFramework/Manipulators/ManipulatorManager.h>
#include <AzToolsFramework/ViewportSelection/EditorSelectionUtil.h>
#include <AzToolsFramework/ComponentModes/BoxViewportEdit.h>
#include <AzCore/Component/TransformBus.h>
#include <AzCore/Component/NonUniformScaleBus.h>
#include <AzCore/Math/ToString.h>
@ -110,15 +111,12 @@ namespace PhysX
void ColliderSphereMode::OnManipulatorMoved(const AzToolsFramework::LinearManipulator::Action& action, const AZ::EntityComponentIdPair& idPair)
{
// manipulator offsets do not take transform scale into account, need to handle it here
AZ::Transform colliderWorldTransform = AZ::Transform::CreateIdentity();
AZ::TransformBus::EventResult(colliderWorldTransform, idPair.GetEntityId(), &AZ::TransformBus::Events::GetWorldTM);
const AZ::Transform colliderLocalTransform = Utils::GetColliderLocalTransform(idPair);
const float transformScale = AZ::GetMax(AZ::MinTransformScale, colliderWorldTransform.GetUniformScale());
const AZ::Vector3 localPosition = colliderLocalTransform.GetInverse().TransformPoint(
action.m_start.m_localPosition + action.m_current.m_localPositionOffset / transformScale);
const AZ::Vector3 manipulatorPosition = AzToolsFramework::GetPositionInManipulatorFrame(
m_radiusManipulator->GetSpace().GetUniformScale(), colliderLocalTransform, action);
// Get the distance the manipulator has moved along the axis.
float extent = localPosition.Dot(action.m_fixed.m_axis);
float extent = manipulatorPosition.Dot(action.m_fixed.m_axis);
// Clamp the distance to a small value to prevent it going negative.
extent = AZ::GetMax(extent, MinSphereRadius);

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