alexpete
105 lines
4.0 KiB
C++
105 lines
4.0 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/EntityId.h>
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#include <AzCore/std/containers/vector.h>
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#include <AzCore/Math/Transform.h>
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namespace NvCloth
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{
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extern const int InvalidIndex;
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//! Base collider class with transform and joint information.
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struct Collider
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{
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//! Offset transform relative to the joint attached.
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AZ::Transform m_offsetTransform = AZ::Transform::CreateIdentity();
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//! Current transform in model space after animation applied.
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AZ::Transform m_currentModelSpaceTransform = AZ::Transform::CreateIdentity();
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//! Joint this collider is attached to.
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int m_jointIndex = InvalidIndex;
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};
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//! Describes the shape on an sphere collider.
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struct SphereCollider
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: public Collider
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{
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//! Radius of the sphere.
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float m_radius = 0.0f;
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int m_nvSphereIndex = InvalidIndex; //!< Identifies the sphere within m_spheres in ActorClothColliders.
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};
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//! Describes the shape on an sphere collider.
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struct CapsuleCollider
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: public Collider
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{
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//! Height of the capsule.
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float m_height = 0.0f;
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//! Radius of the capsule.
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float m_radius = 0.0f;
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int m_capsuleIndex = InvalidIndex; //!< Identifies first index of the capsule within m_capsuleIndices in ActorClothColliders.
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int m_sphereAIndex = InvalidIndex; //!< Identifies the first sphere within m_spheres in ActorClothColliders.
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int m_sphereBIndex = InvalidIndex; //!< Identifies the second sphere within m_spheres in ActorClothColliders.
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};
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//! Class to retrieve cloth colliders information from an actor on the same entity
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//! and updates their transform from skinning animation.
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//!
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//! @note There is a limit of 32 sphere colliders and 32 capsule colliders.
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//! In the case that all capsules use unique spheres then the maximum
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//! number of capsule would go down to 16, limited by the maximum number of spheres (32).
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class ActorClothColliders
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{
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public:
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AZ_TYPE_INFO(ActorClothColliders, "{EA2D9B6A-2493-4B6A-972E-BB639E16798E}");
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static AZStd::unique_ptr<ActorClothColliders> Create(AZ::EntityId entityId);
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explicit ActorClothColliders(AZ::EntityId entityId);
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//! Updates the colliders' transforms with the current pose of the actor.
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void Update();
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const AZStd::vector<SphereCollider>& GetSphereColliders() const;
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const AZStd::vector<CapsuleCollider>& GetCapsuleColliders() const;
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const AZStd::vector<AZ::Vector4>& GetSpheres() const;
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const AZStd::vector<uint32_t>& GetCapsuleIndices() const;
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private:
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void UpdateSphere(const SphereCollider& sphere);
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void UpdateCapsule(const CapsuleCollider& capsule);
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AZ::EntityId m_entityId;
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// Configuration data of spheres and capsules, describing their shape and transforms relative to joints.
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AZStd::vector<SphereCollider> m_sphereColliders;
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AZStd::vector<CapsuleCollider> m_capsuleColliders;
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// The current positions and radius of sphere colliders.
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// Every update, these positions are computed with the current pose of the actor.
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// Note: The spheres used to formed capsules are also part of this list.
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AZStd::vector<AZ::Vector4> m_spheres;
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// The sphere collider indices associated with capsules.
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// Each capsule is 2 indices within the list.
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AZStd::vector<uint32_t> m_capsuleIndices;
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};
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} // namespace NvCloth
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