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Florian Rival
83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
/**
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GDevelop - Physics Behavior Extension
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Copyright (c) 2010-2016 Florian Rival (Florian.Rival@gmail.com)
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This project is released under the MIT License.
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*/
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#ifndef RUNTIMESCENEPHYSICSDATAS_H
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#define RUNTIMESCENEPHYSICSDATAS_H
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namespace gd {
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class SerializerElement;
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}
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class b2World;
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class b2Body;
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#include "GDCpp/Runtime/BehaviorsRuntimeSharedData.h"
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class ScenePhysicsDatas;
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class ContactListener;
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/**
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* Datas shared by Physics Behavior at runtime
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*/
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class RuntimeScenePhysicsDatas : public BehaviorsRuntimeSharedData {
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public:
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RuntimeScenePhysicsDatas(
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const gd::SerializerElement& behaviorSharedDataContent);
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virtual ~RuntimeScenePhysicsDatas();
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virtual std::shared_ptr<BehaviorsRuntimeSharedData> Clone() const {
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return std::shared_ptr<BehaviorsRuntimeSharedData>(
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new RuntimeScenePhysicsDatas(*this));
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}
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b2World* world;
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ContactListener* contactListener;
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b2Body*
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staticBody; ///< A simple static body with no fixture. Used for joints.
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bool stepped; ///< Used to be sure that Step is called only once at each
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///< frame.
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/**
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* Get the scale between world coordinates and scene pixels in x axis
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*/
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inline float GetScaleX() const { return scaleX; }
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/**
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* Get the scale between world coordinates and scene pixels in y axis
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*/
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inline float GetScaleY() const { return scaleY; }
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/**
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* Get inverse of scale X
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*/
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inline float GetInvScaleX() const { return invScaleX; }
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/**
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* Get inverse of scale Y
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*/
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inline float GetInvScaleY() const { return invScaleY; }
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/**
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* Call world->Step(), ensuring that the timeStep passed to Step() is fixed.
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* This method is to be called once a frame ( by PhysicsBehavior ).
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*/
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void StepWorld(float dt, int v, int p);
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private:
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float scaleX;
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float scaleY;
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float invScaleX;
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float invScaleY;
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float
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fixedTimeStep; ///< Time step between to call to world->Step(...). Box2D
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///< need a fixed time step to ensure reliable simulation.
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std::size_t
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maxSteps; ///< Maximum steps per frames, to prevent slow down (a slow
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///< down will force the computer to make more steps which will
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///< force it to make even more steps...)
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float totalTime;
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};
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#endif // RUNTIMESCENEPHYSICSDATAS_H
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