Steve Pham
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project
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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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#pragma once
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#include <AzCore/Component/EntityId.h>
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#include <AzCore/EBus/EBus.h>
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#include <AzCore/Math/Aabb.h>
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#include <AzCore/Math/Vector3.h>
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namespace Physics
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{
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//! An interface to get wind values.
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class WindRequests
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{
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public:
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AZ_TYPE_INFO(WindRequests, "{87CB77B6-BE47-45FD-AA98-C42C19600EE6}");
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WindRequests() = default;
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//! AZ::Interface requires these to be deleted.
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WindRequests(WindRequests&&) = delete;
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WindRequests& operator=(WindRequests&&) = delete;
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virtual AZ::Vector3 GetGlobalWind() const = 0;
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//! Get accumulated wind value at given world position.
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virtual AZ::Vector3 GetWind(const AZ::Vector3& worldPosition) const = 0;
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//! Get accumulated wind value inside given AABB volume.
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virtual AZ::Vector3 GetWind(const AZ::Aabb& aabb) const = 0;
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protected:
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~WindRequests() = default;
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};
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//! Wind requests bus traits. Singleton pattern.
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class WindRequestsTraits
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: public AZ::EBusTraits
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{
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public:
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static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
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static const AZ::EBusAddressPolicy AddressPolicy = AZ::EBusAddressPolicy::Single;
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};
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using WindRequestsBus = AZ::EBus<WindRequests, WindRequestsTraits>;
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//! Broadcasts notifications when wind state changes - wind providers implement WindRequests bus.
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class WindNotifications
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: public AZ::EBusTraits
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{
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public:
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static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Multiple;
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//! Dispatched when global wind value is changed.
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virtual void OnGlobalWindChanged() {}
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//! Dispatched when local wind volume is moved or changes value.
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virtual void OnWindChanged([[maybe_unused]] const AZ::Aabb& aabb) {}
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protected:
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~WindNotifications() = default;
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};
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using WindNotificationsBus = AZ::EBus<WindNotifications>;
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} // namespace Physics
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