ODESystemClass.h

#ifndef TT_INCLUDE__ODESYSTEMCLASS_H
#define TT_INCLUDE__ODESYSTEMCLASS_H
#include "engine_vector.h"
class StateVectorClass : public DynamicVectorClass<float> 
{
public:
    void Reset(void) { ActiveCount = 0; }
    void Resize(int size) { if (size > VectorMax) { DynamicVectorClass<float>::Resize(size); } }
};
class ODESystemClass
{
public:
    virtual void    Get_State(StateVectorClass & set_state) = 0;
    virtual int     Set_State(const StateVectorClass & new_state,int start_index = 0) = 0;
    virtual int     Compute_Derivatives(float t,StateVectorClass * test_state,StateVectorClass * dydt,int start_index = 0) = 0;
};
class IntegrationSystem
{
public:
    static void Euler_Integrate(ODESystemClass * sys,float dt);
    static void Midpoint_Integrate(ODESystemClass * sys,float dt);
    static void Runge_Kutta_Integrate(ODESystemClass * sys,float dt);
    static void Runge_Kutta5_Integrate(ODESystemClass * odesys,float dt);
};
 
#endif