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110 lines
4.9 KiB
C++
110 lines
4.9 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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#include <AzCore/Component/TransformBus.h>
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#include <AzCore/Math/Aabb.h>
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#include <AzCore/Math/Obb.h>
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#include <AzCore/Component/NonUniformScaleBus.h>
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#include <LmbrCentral/Shape/ShapeComponentBus.h>
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#include <LmbrCentral/Shape/BoxShapeComponentBus.h>
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namespace AzFramework
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{
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class DebugDisplayRequests;
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}
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namespace LmbrCentral
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{
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struct ShapeDrawParams;
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class BoxShape
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: public ShapeComponentRequestsBus::Handler
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, public BoxShapeComponentRequestsBus::Handler
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, public AZ::TransformNotificationBus::Handler
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{
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public:
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AZ_CLASS_ALLOCATOR(BoxShape, AZ::SystemAllocator, 0)
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AZ_RTTI(BoxShape, "{36D1BA94-13CF-433F-B1FE-28BEBBFE20AA}")
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BoxShape();
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static void Reflect(AZ::ReflectContext* context);
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void Activate(AZ::EntityId entityId);
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void Deactivate();
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void InvalidateCache(InvalidateShapeCacheReason reason);
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// ShapeComponentRequestsBus::Handler
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AZ::Crc32 GetShapeType() override { return AZ_CRC("Box", 0x08a9483a); }
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AZ::Aabb GetEncompassingAabb() override;
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void GetTransformAndLocalBounds(AZ::Transform& transform, AZ::Aabb& bounds) override;
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bool IsPointInside(const AZ::Vector3& point) override;
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float DistanceSquaredFromPoint(const AZ::Vector3& point) override;
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AZ::Vector3 GenerateRandomPointInside(AZ::RandomDistributionType randomDistribution) override;
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bool IntersectRay(const AZ::Vector3& src, const AZ::Vector3& dir, float& distance) override;
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// BoxShapeComponentRequestBus::Handler
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BoxShapeConfig GetBoxConfiguration() override { return m_boxShapeConfig; }
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AZ::Vector3 GetBoxDimensions() override { return m_boxShapeConfig.m_dimensions; }
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void SetBoxDimensions(const AZ::Vector3& dimensions) override;
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// AZ::TransformNotificationBus::Handler
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void OnTransformChanged(const AZ::Transform& local, const AZ::Transform& world) override;
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void OnNonUniformScaleChanged(const AZ::Vector3& scale);
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const AZ::Vector3& GetCurrentNonUniformScale() const { return m_currentNonUniformScale; }
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const BoxShapeConfig& GetBoxConfiguration() const { return m_boxShapeConfig; }
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void SetBoxConfiguration(const BoxShapeConfig& boxShapeConfig) { m_boxShapeConfig = boxShapeConfig; }
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const AZ::Transform& GetCurrentTransform() const { return m_currentTransform; }
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void SetDrawColor(const AZ::Color& color) { m_boxShapeConfig.SetDrawColor(color); }
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protected:
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friend class EditorBoxShapeComponent;
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BoxShapeConfig& ModifyConfiguration() { return m_boxShapeConfig; }
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private:
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/// Runtime data - cache potentially expensive operations.
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class BoxIntersectionDataCache
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: public IntersectionTestDataCache<BoxShapeConfig>
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{
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void UpdateIntersectionParamsImpl(
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const AZ::Transform& currentTransform, const BoxShapeConfig& configuration,
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const AZ::Vector3& currentNonUniformScale = AZ::Vector3::CreateOne()) override;
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friend BoxShape;
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AZ::Aabb m_aabb; ///< Aabb representing this Box (including the effects of scale).
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AZ::Obb m_obb; ///< Obb representing this Box (including the effects of scale).
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AZ::Vector3 m_currentPosition; ///< Position of the Box.
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AZ::Vector3 m_scaledDimensions; ///< Dimensions of Box (including entity scale and non-uniform scale).
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bool m_axisAligned = true; ///< Indicates whether the box is axis or object aligned.
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};
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BoxShapeConfig m_boxShapeConfig; ///< Underlying box configuration.
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BoxIntersectionDataCache m_intersectionDataCache; ///< Caches transient intersection data.
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AZ::Transform m_currentTransform; ///< Caches the current transform for the entity on which this component lives.
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AZ::EntityId m_entityId; ///< Id of the entity the box shape is attached to.
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AZ::NonUniformScaleChangedEvent::Handler m_nonUniformScaleChangedHandler; ///< Responds to changes in non-uniform scale.
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AZ::Vector3 m_currentNonUniformScale = AZ::Vector3::CreateOne(); ///< Caches the current non-uniform scale.
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};
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void DrawBoxShape(
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const ShapeDrawParams& shapeDrawParams, const BoxShapeConfig& boxShapeConfig,
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AzFramework::DebugDisplayRequests& debugDisplay, const AZ::Vector3& nonUniformScale = AZ::Vector3::CreateOne());
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} // namespace LmbrCentral
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