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115 lines
4.3 KiB
C++
115 lines
4.3 KiB
C++
/*
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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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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#include <Tests/BoundsTestComponent.h>
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#include <AzCore/Math/Obb.h>
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#include <AzCore/Math/IntersectSegment.h>
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#include <AzToolsFramework/ViewportSelection/EditorSelectionUtil.h>
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namespace UnitTest
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{
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AZ::Aabb BoundsTestComponent::GetEditorSelectionBoundsViewport([[maybe_unused]] const AzFramework::ViewportInfo& viewportInfo)
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{
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return GetWorldBounds();
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}
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bool BoundsTestComponent::EditorSelectionIntersectRayViewport(
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[[maybe_unused]] const AzFramework::ViewportInfo& viewportInfo, const AZ::Vector3& src, const AZ::Vector3& dir, float& distance)
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{
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return AzToolsFramework::AabbIntersectRay(src, dir, GetWorldBounds(), distance);
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}
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bool BoundsTestComponent::SupportsEditorRayIntersect()
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{
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return true;
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}
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void BoundsTestComponent::Reflect(AZ::ReflectContext* context)
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{
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if (auto serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
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{
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serializeContext->Class<BoundsTestComponent, EditorComponentBase>()->Version(1);
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}
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}
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void BoundsTestComponent::Activate()
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{
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AzFramework::BoundsRequestBus::Handler::BusConnect(GetEntityId());
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AzToolsFramework::EditorComponentSelectionRequestsBus::Handler::BusConnect(GetEntityId());
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// default local bounds to unit cube
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m_localBounds = AZ::Aabb::CreateFromMinMax(AZ::Vector3(-0.5f), AZ::Vector3(0.5f));
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}
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void BoundsTestComponent::Deactivate()
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{
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AzToolsFramework::EditorComponentSelectionRequestsBus::Handler::BusDisconnect();
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AzFramework::BoundsRequestBus::Handler::BusDisconnect();
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}
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AZ::Aabb BoundsTestComponent::GetWorldBounds()
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{
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AZ::Transform worldFromLocal = AZ::Transform::CreateIdentity();
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AZ::TransformBus::EventResult(worldFromLocal, GetEntityId(), &AZ::TransformBus::Events::GetWorldTM);
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return GetLocalBounds().GetTransformedAabb(worldFromLocal);
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}
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AZ::Aabb BoundsTestComponent::GetLocalBounds()
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{
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return m_localBounds;
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}
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void RenderGeometryIntersectionTestComponent::Reflect(AZ::ReflectContext* context)
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{
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if (auto serializeContext = azrtti_cast<AZ::SerializeContext*>(context))
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{
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serializeContext->Class<RenderGeometryIntersectionTestComponent, BoundsTestComponent>()->Version(1);
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}
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}
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void RenderGeometryIntersectionTestComponent::Activate()
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{
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BoundsTestComponent::Activate();
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const AZ::EntityId entityId = GetEntityId();
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AzFramework::EntityContextId contextId = AzFramework::EntityContextId::CreateNull();
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AzFramework::EntityIdContextQueryBus::EventResult(contextId, entityId, &AzFramework::EntityIdContextQueries::GetOwningContextId);
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AzFramework::RenderGeometry::IntersectionRequestBus::Handler::BusConnect({entityId, contextId});
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}
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void RenderGeometryIntersectionTestComponent::Deactivate()
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{
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AzFramework::RenderGeometry::IntersectionRequestBus::Handler::BusDisconnect();
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BoundsTestComponent::Deactivate();
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}
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AzFramework::RenderGeometry::RayResult RenderGeometryIntersectionTestComponent::RenderGeometryIntersect(
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const AzFramework::RenderGeometry::RayRequest& ray)
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{
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AZ::Transform worldFromLocal = AZ::Transform::CreateIdentity();
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AZ::TransformBus::EventResult(worldFromLocal, GetEntityId(), &AZ::TransformBus::Events::GetWorldTM);
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AzFramework::RenderGeometry::RayResult rayResult;
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float t = 0.0f;
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const AZ::Obb obb = GetLocalBounds().GetTransformedObb(worldFromLocal);
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const AZ::Vector3 rayDirection = ray.m_endWorldPosition - ray.m_startWorldPosition;
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if (AZ::Intersect::IntersectRayObb(ray.m_startWorldPosition, rayDirection, obb, t))
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{
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rayResult.m_worldPosition = ray.m_startWorldPosition + rayDirection * t;
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rayResult.m_entityAndComponent = AZ::EntityComponentIdPair(GetEntityId(), GetId());
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rayResult.m_distance = t;
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rayResult.m_uv = AZ::Vector2::CreateZero();
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rayResult.m_worldNormal = AZ::Vector3::CreateZero();
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}
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return rayResult;
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}
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} // namespace UnitTest
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