sid/NazaraEngine
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

SDK: Add components and system for 2D physics

Browse Source
This commit is contained in:
Lynix
2016-11-10 18:31:27 +01:00
parent 48f7a955f6
commit 74f3ac8021
19 changed files with 917 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

108
SDK/src/NDK/Components/CollisionComponent2D.cpp Normal file
View File

@@ -0,0 +1,108 @@
// Copyright (C) 2015 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
#include <NDK/Components/CollisionComponent2D.hpp>
#include <Nazara/Physics2D/RigidBody2D.hpp>
#include <NDK/Algorithm.hpp>
#include <NDK/World.hpp>
#include <NDK/Components/PhysicsComponent2D.hpp>
#include <NDK/Systems/PhysicsSystem2D.hpp>
namespace Ndk
{
/*!
* \ingroup NDK
* \class Ndk::CollisionComponent2D
* \brief NDK class that represents a two-dimensional collision geometry
*/
/*!
* \brief Sets geometry for the entity
*
* \param geom Geometry used for collisions
*
* \remark Produces a NazaraAssert if the entity has no physics component and has no static body
*/
void CollisionComponent2D::SetGeom(Nz::Collider2DRef geom)
{
m_geom = std::move(geom);
if (m_entity->HasComponent<PhysicsComponent2D>())
{
// We update the geometry of the PhysiscsObject linked to the PhysicsComponent2D
PhysicsComponent2D& physComponent = m_entity->GetComponent<PhysicsComponent2D>();
physComponent.GetRigidBody().SetGeom(m_geom);
}
else
{
NazaraAssert(m_staticBody, "An entity without physics component should have a static body");
m_staticBody->SetGeom(m_geom);
}
}
/*!
* \brief Initializes the static body
*
* \remark Produces a NazaraAssert if entity is invalid
* \remark Produces a NazaraAssert if entity is not linked to a world, or the world has no physics system
*/
void CollisionComponent2D::InitializeStaticBody()
{
NazaraAssert(m_entity, "Invalid entity");
World* entityWorld = m_entity->GetWorld();
NazaraAssert(entityWorld, "Entity must have world");
NazaraAssert(entityWorld->HasSystem<PhysicsSystem2D>(), "World must have a physics system");
Nz::PhysWorld2D& physWorld = entityWorld->GetSystem<PhysicsSystem2D>().GetWorld();
m_staticBody.reset(new Nz::RigidBody2D(&physWorld, m_geom));
}
/*!
* \brief Operation to perform when component is attached to an entity
*/
void CollisionComponent2D::OnAttached()
{
if (!m_entity->HasComponent<PhysicsComponent2D>())
InitializeStaticBody();
}
/*!
* \brief Operation to perform when component is attached to this component
*
* \param component Component being attached
*/
void CollisionComponent2D::OnComponentAttached(BaseComponent& component)
{
if (IsComponent<PhysicsComponent2D>(component))
m_staticBody.reset();
}
/*!
* \brief Operation to perform when component is detached from this component
*
* \param component Component being detached
*/
void CollisionComponent2D::OnComponentDetached(BaseComponent& component)
{
if (IsComponent<PhysicsComponent2D>(component))
InitializeStaticBody();
}
/*!
* \brief Operation to perform when component is detached from an entity
*/
void CollisionComponent2D::OnDetached()
{
m_staticBody.reset();
}
ComponentIndex CollisionComponent2D::componentIndex;
}

2
SDK/src/NDK/Components/CollisionComponent3D.cpp
View File

@@ -33,7 +33,7 @@ namespace Ndk
{
// We update the geometry of the PhysiscsObject linked to the PhysicsComponent3D
PhysicsComponent3D& physComponent = m_entity->GetComponent<PhysicsComponent3D>();
physComponent.GetPhysObject().SetGeom(m_geom);
physComponent.GetRigidBody().SetGeom(m_geom);
}
else
{

92
SDK/src/NDK/Components/PhysicsComponent2D.cpp Normal file
View File

@@ -0,0 +1,92 @@
// Copyright (C) 2015 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
#include <NDK/Components/PhysicsComponent2D.hpp>
#include <Nazara/Physics2D/RigidBody2D.hpp>
#include <NDK/Algorithm.hpp>
#include <NDK/World.hpp>
#include <NDK/Components/CollisionComponent2D.hpp>
#include <NDK/Components/NodeComponent.hpp>
#include <NDK/Systems/PhysicsSystem3D.hpp>
namespace Ndk
{
/*!
* \ingroup NDK
* \class Ndk::PhysicsComponent2D
* \brief NDK class that represents a physics point, without any collision
*/
/*!
* \brief Operation to perform when component is attached to an entity
*
* \remark Produces a NazaraAssert if the world does not have a physics system
*/
void PhysicsComponent2D::OnAttached()
{
World* entityWorld = m_entity->GetWorld();
NazaraAssert(entityWorld->HasSystem<PhysicsSystem2D>(), "World must have a 2D physics system");
Nz::PhysWorld2D& world = entityWorld->GetSystem<PhysicsSystem2D>().GetWorld();
Nz::Collider2DRef geom;
if (m_entity->HasComponent<CollisionComponent2D>())
geom = m_entity->GetComponent<CollisionComponent2D>().GetGeom();
Nz::Matrix4f matrix;
if (m_entity->HasComponent<NodeComponent>())
matrix = m_entity->GetComponent<NodeComponent>().GetTransformMatrix();
else
matrix.MakeIdentity();
m_object.reset(new Nz::RigidBody2D(&world, 1.f, geom));
m_object->SetPosition(Nz::Vector2f(matrix.GetTranslation()));
}
/*!
* \brief Operation to perform when component is attached to this component
*
* \param component Component being attached
*
* \remark Produces a NazaraAssert if physical object is invalid
*/
void PhysicsComponent2D::OnComponentAttached(BaseComponent& component)
{
if (IsComponent<CollisionComponent2D>(component))
{
NazaraAssert(m_object, "Invalid object");
m_object->SetGeom(static_cast<CollisionComponent2D&>(component).GetGeom());
}
}
/*!
* \brief Operation to perform when component is detached from this component
*
* \param component Component being detached
*
* \remark Produces a NazaraAssert if physical object is invalid
*/
void PhysicsComponent2D::OnComponentDetached(BaseComponent& component)
{
if (IsComponent<CollisionComponent2D>(component))
{
NazaraAssert(m_object, "Invalid object");
m_object->SetGeom(Nz::NullCollider2D::New());
}
}
/*!
* \brief Operation to perform when component is detached from an entity
*/
void PhysicsComponent2D::OnDetached()
{
m_object.reset();
}
ComponentIndex PhysicsComponent2D::componentIndex;
}

13
SDK/src/NDK/Sdk.cpp
View File

@@ -9,14 +9,18 @@
#include <Nazara/Graphics/Graphics.hpp>
#include <Nazara/Lua/Lua.hpp>
#include <Nazara/Noise/Noise.hpp>
#include <Nazara/Physics2D/Physics2D.hpp>
#include <Nazara/Physics3D/Physics3D.hpp>
#include <Nazara/Utility/Utility.hpp>
#include <NDK/Algorithm.hpp>
#include <NDK/BaseSystem.hpp>
#include <NDK/Components/CollisionComponent2D.hpp>
#include <NDK/Components/CollisionComponent3D.hpp>
#include <NDK/Components/NodeComponent.hpp>
#include <NDK/Components/PhysicsComponent2D.hpp>
#include <NDK/Components/PhysicsComponent3D.hpp>
#include <NDK/Components/VelocityComponent.hpp>
#include <NDK/Systems/PhysicsSystem2D.hpp>
#include <NDK/Systems/PhysicsSystem3D.hpp>
#include <NDK/Systems/VelocitySystem.hpp>
@@ -68,6 +72,7 @@ namespace Ndk
Nz::Lua::Initialize();
Nz::Noise::Initialize();
Nz::Physics2D::Initialize();
Nz::Physics3D::Initialize();
Nz::Utility::Initialize();
@@ -83,9 +88,11 @@ namespace Ndk
BaseComponent::Initialize();
// Shared components
InitializeComponent<CollisionComponent3D>("NdkColli");
InitializeComponent<CollisionComponent2D>("NdkColl2");
InitializeComponent<CollisionComponent3D>("NdkColl3");
InitializeComponent<NodeComponent>("NdkNode");
InitializeComponent<PhysicsComponent3D>("NdkPhys");
InitializeComponent<PhysicsComponent2D>("NdkPhys2");
InitializeComponent<PhysicsComponent3D>("NdkPhys3");
InitializeComponent<VelocityComponent>("NdkVeloc");
#ifndef NDK_SERVER
@@ -103,6 +110,7 @@ namespace Ndk
BaseSystem::Initialize();
// Shared systems
InitializeSystem<PhysicsSystem2D>();
InitializeSystem<PhysicsSystem3D>();
InitializeSystem<VelocitySystem>();
@@ -161,6 +169,7 @@ namespace Ndk
// Shared modules
Nz::Lua::Uninitialize();
Nz::Noise::Uninitialize();
Nz::Physics2D::Uninitialize();
Nz::Physics3D::Uninitialize();
Nz::Utility::Uninitialize();

140
SDK/src/NDK/Systems/PhysicsSystem2D.cpp Normal file
View File

@@ -0,0 +1,140 @@
// Copyright (C) 2015 Jérôme Leclercq
// This file is part of the "Nazara Development Kit"
// For conditions of distribution and use, see copyright notice in Prerequesites.hpp
#include <NDK/Systems/PhysicsSystem2D.hpp>
#include <Nazara/Physics2D/RigidBody2D.hpp>
#include <NDK/Components/CollisionComponent2D.hpp>
#include <NDK/Components/NodeComponent.hpp>
#include <NDK/Components/PhysicsComponent2D.hpp>
#include <NDK/Components/PhysicsComponent3D.hpp>
namespace Ndk
{
/*!
* \ingroup NDK
* \class Ndk::PhysicsSystem2D
* \brief NDK class that represents a two-dimensional physics system
*
* \remark This system is enabled if the entity has the trait: NodeComponent and any of these two: CollisionComponent3D or PhysicsComponent3D
* \remark Static objects do not have a velocity specified by the physical engine
*/
/*!
* \brief Constructs an PhysicsSystem object by default
*/
PhysicsSystem2D::PhysicsSystem2D()
{
Requires<NodeComponent>();
RequiresAny<CollisionComponent2D, PhysicsComponent2D>();
Excludes<PhysicsComponent3D>();
}
/*!
* \brief Constructs a PhysicsSystem object by copy semantic
*
* \param system PhysicsSystem to copy
*/
PhysicsSystem2D::PhysicsSystem2D(const PhysicsSystem2D& system) :
System(system),
m_world()
{
}
void PhysicsSystem2D::CreatePhysWorld() const
{
NazaraAssert(!m_world, "Physics world should not be created twice");
m_world = std::make_unique<Nz::PhysWorld2D>();
}
/*!
* \brief Operation to perform when entity is validated for the system
*
* \param entity Pointer to the entity
* \param justAdded Is the entity newly added
*/
void PhysicsSystem2D::OnEntityValidation(Entity* entity, bool justAdded)
{
// It's possible our entity got revalidated because of the addition/removal of a PhysicsComponent3D
if (!justAdded)
{
// We take the opposite array from which the entity should belong to
auto& entities = (entity->HasComponent<PhysicsComponent2D>()) ? m_staticObjects : m_dynamicObjects;
entities.Remove(entity);
}
auto& entities = (entity->HasComponent<PhysicsComponent2D>()) ? m_dynamicObjects : m_staticObjects;
entities.Insert(entity);
if (!m_world)
CreatePhysWorld();
}
/*!
* \brief Operation to perform when system is updated
*
* \param elapsedTime Delta time used for the update
*/
void PhysicsSystem2D::OnUpdate(float elapsedTime)
{
if (!m_world)
return;
m_world->Step(elapsedTime);
for (const Ndk::EntityHandle& entity : m_dynamicObjects)
{
NodeComponent& node = entity->GetComponent<NodeComponent>();
PhysicsComponent2D& phys = entity->GetComponent<PhysicsComponent2D>();
Nz::RigidBody2D& body = phys.GetRigidBody();
node.SetRotation(Nz::EulerAnglesf(0.f, 0.f, body.GetRotation()), Nz::CoordSys_Global);
node.SetPosition(Nz::Vector3f(body.GetPosition(), node.GetPosition(Nz::CoordSys_Global).z), Nz::CoordSys_Global);
}
float invElapsedTime = 1.f / elapsedTime;
for (const Ndk::EntityHandle& entity : m_staticObjects)
{
CollisionComponent2D& collision = entity->GetComponent<CollisionComponent2D>();
NodeComponent& node = entity->GetComponent<NodeComponent>();
Nz::RigidBody2D* body = collision.GetStaticBody();
Nz::Vector2f oldPosition = body->GetPosition();
Nz::Vector2f newPosition = Nz::Vector2f(node.GetPosition(Nz::CoordSys_Global));
// To move static objects and ensure their collisions, we have to specify them a velocity
// (/!\: the physical motor does not apply the speed on static objects)
if (newPosition != oldPosition)
{
body->SetPosition(newPosition);
body->SetVelocity((newPosition - oldPosition) * invElapsedTime);
}
else
body->SetVelocity(Nz::Vector2f::Zero());
/*
if (newRotation != oldRotation)
{
Nz::Quaternionf transition = newRotation * oldRotation.GetConjugate();
Nz::EulerAnglesf angles = transition.ToEulerAngles();
Nz::Vector3f angularVelocity(Nz::ToRadians(angles.pitch * invElapsedTime),
Nz::ToRadians(angles.yaw * invElapsedTime),
Nz::ToRadians(angles.roll * invElapsedTime));
physObj->SetRotation(oldRotation);
physObj->SetAngularVelocity(angularVelocity);
}
else
physObj->SetAngularVelocity(Nz::Vector3f::Zero());
*/
}
}
SystemIndex PhysicsSystem2D::systemIndex;
}

4
SDK/src/NDK/Systems/PhysicsSystem3D.cpp
View File

@@ -6,6 +6,7 @@
#include <Nazara/Physics3D/RigidBody3D.hpp>
#include <NDK/Components/CollisionComponent3D.hpp>
#include <NDK/Components/NodeComponent.hpp>
#include <NDK/Components/PhysicsComponent2D.hpp>
#include <NDK/Components/PhysicsComponent3D.hpp>
namespace Ndk
@@ -27,6 +28,7 @@ namespace Ndk
{
Requires<NodeComponent>();
RequiresAny<CollisionComponent3D, PhysicsComponent3D>();
Excludes<PhysicsComponent2D>();
}
/*!
@@ -90,7 +92,7 @@ namespace Ndk
NodeComponent& node = entity->GetComponent<NodeComponent>();
PhysicsComponent3D& phys = entity->GetComponent<PhysicsComponent3D>();
Nz::RigidBody3D& physObj = phys.GetPhysObject();
Nz::RigidBody3D& physObj = phys.GetRigidBody();
node.SetRotation(physObj.GetRotation(), Nz::CoordSys_Global);
node.SetPosition(physObj.GetPosition(), Nz::CoordSys_Global);
}

2
SDK/src/NDK/World.cpp
View File

@@ -5,6 +5,7 @@
#include <NDK/World.hpp>
#include <Nazara/Core/Error.hpp>
#include <NDK/BaseComponent.hpp>
#include <NDK/Systems/PhysicsSystem2D.hpp>
#include <NDK/Systems/PhysicsSystem3D.hpp>
#include <NDK/Systems/VelocitySystem.hpp>
@@ -40,6 +41,7 @@ namespace Ndk
void World::AddDefaultSystems()
{
AddSystem<PhysicsSystem2D>();
AddSystem<PhysicsSystem3D>();
AddSystem<VelocitySystem>();