31 lines
863 B
C++
31 lines
863 B
C++
// Copyright (C) 2015 Jérôme Leclercq
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// This file is part of the "Nazara Development Kit"
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// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
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#include <NDK/Systems/VelocitySystem.hpp>
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#include <NDK/Components/NodeComponent.hpp>
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#include <NDK/Components/PhysicsComponent.hpp>
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#include <NDK/Components/VelocityComponent.hpp>
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namespace Ndk
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{
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VelocitySystem::VelocitySystem()
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{
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Requires<NodeComponent, VelocityComponent>();
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Excludes<PhysicsComponent>();
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}
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void VelocitySystem::OnUpdate(float elapsedTime)
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{
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for (const Ndk::EntityHandle& entity : GetEntities())
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{
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NodeComponent& node = entity->GetComponent<NodeComponent>();
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const VelocityComponent& velocity = entity->GetComponent<VelocityComponent>();
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node.Move(velocity.linearVelocity * elapsedTime);
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}
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}
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SystemIndex VelocitySystem::systemIndex;
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}
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