182 lines
4.3 KiB
C++
182 lines
4.3 KiB
C++
// Copyright (c) 2018-2019 Kiwano - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#pragma once
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#include <kiwano-physics/PhysicBody.h>
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#include <kiwano-physics/Joint.h>
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namespace kiwano
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{
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namespace physics
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{
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/**
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* \~chinese
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* \defgroup Physics 物理模块
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*/
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/**
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* \addtogroup Physics
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* @{
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*/
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/**
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* \~chinese
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* @brief 物理世界
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*/
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class KGE_API PhysicWorld : public Component
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{
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friend class PhysicBody;
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friend class Joint;
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public:
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PhysicWorld();
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/// \~chinese
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/// @brief 创建物理世界
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/// @param gravity 重力
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PhysicWorld(const Vec2& gravity);
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virtual ~PhysicWorld();
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/// \~chinese
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/// @brief 添加物体
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void AddBody(PhysicBodyPtr body);
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/// \~chinese
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/// @brief 移除物体
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void RemoveBody(PhysicBodyPtr body);
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/// \~chinese
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/// @brief 移除所有物体
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void RemoveAllBodies();
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/// \~chinese
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/// @brief 获取所有物体
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const List<PhysicBodyPtr>& GetAllBodies() const;
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/// \~chinese
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/// @brief 添加关节
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void AddJoint(JointPtr joint);
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/// \~chinese
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/// @brief 移除关节
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void RemoveJoint(JointPtr joint);
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/// \~chinese
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/// @brief 移除所有关节
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void RemoveAllJoints();
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/// \~chinese
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/// @brief 获取所有关节
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const List<JointPtr>& GetAllJoints() const;
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/// \~chinese
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/// @brief 获取重力 [N]
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Vec2 GetGravity() const;
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/// \~chinese
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/// @brief 设置重力 [N]
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void SetGravity(Vec2 gravity);
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/// \~chinese
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/// @brief 获取物理接触列表
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ContactList GetContactList();
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/// \~chinese
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/// @brief 设置速度迭代次数, 默认为 6
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void SetVelocityIterations(int vel_iter);
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/// \~chinese
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/// @brief 设置位置迭代次数, 默认为 2
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void SetPositionIterations(int pos_iter);
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/// \~chinese
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/// @brief 设置是否绘制调试信息
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void ShowDebugInfo(bool show);
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/// \~chinese
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/// @brief 获取b2World
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b2World* GetB2World();
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/// \~chinese
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/// @brief 获取b2World
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const b2World* GetB2World() const;
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protected:
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/// \~chinese
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/// @brief 初始化组件
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void InitComponent(Actor* actor) override;
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/// \~chinese
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/// @brief 更新组件
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void OnUpdate(Duration dt) override;
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/// \~chinese
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/// @brief 渲染组件
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void OnRender(RenderContext& ctx) override;
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/// \~chinese
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/// @brief 分发物理世界事件
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void DispatchEvent(Event* evt);
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/// \~chinese
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/// @brief 关节移除时的回调函数
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void JointRemoved(b2Joint* b2joint);
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/// \~chinese
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/// @brief 更新物理世界前
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void BeforeSimulation(Actor* parent, const Matrix3x2& parent_to_world, float parent_rotation);
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/// \~chinese
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/// @brief 更新物理世界后
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void AfterSimulation(Actor* parent, const Matrix3x2& parent_to_world, float parent_rotation);
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private:
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bool debug_;
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int vel_iter_;
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int pos_iter_;
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b2World world_;
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class DebugDrawer;
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std::unique_ptr<DebugDrawer> drawer_;
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List<PhysicBodyPtr> bodies_;
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List<JointPtr> joints_;
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std::unique_ptr<b2DestructionListener> destroy_listener_;
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std::unique_ptr<b2ContactListener> contact_listener_;
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};
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/** @} */
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inline void PhysicWorld::SetVelocityIterations(int vel_iter)
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{
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vel_iter_ = vel_iter;
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}
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inline void PhysicWorld::SetPositionIterations(int pos_iter)
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{
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pos_iter_ = pos_iter;
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}
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} // namespace physics
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} // namespace kiwano
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