cannonball.h

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#ifndef __CANNONBALL_HEADER__
#define __CANNONBALL_HEADER__
/*****************************************************************************/
#include <math.h>
#include <cstdlib>
#include <vector>
#include <time.h>
#include "screen.h"
/*****************************************************************************/
/*****************************************************************************/
/*****************************************************************************/
struct stcDoubleValues {
  double x; 
  double y; 
};

struct stcPhysicalProperties {
  double radius; 
  double mass; 
  double area; 
  double volume; 
  double density; 
  double interia; 
};

struct stcBox {
  int left; 
  int right; 
  int top; 
  int bottom; 
};

struct stcColor {
  Uint8 Red; 
  Uint8 Green; 
  Uint8 Blue;
};

typedef struct stcDoubleValues dblXY;
typedef struct stcPhysicalProperties PP;
typedef struct stcBox BOX;
typedef struct stcColor clr;
//typedef struct stcXYZVector XYZ;

typedef std::vector<LOC> VPath;
/*****************************************************************************/
class clsCannonball {
  public:
    clsCannonball();
    ~clsCannonball();
    void setValues(double, LOC, double, double, int);
    LOC getplace(void);
    LOC getScreenPlace(void);
    void setplace(LOC);
    void update(double);
    void updateForces(void);
    dblXY getVelocity(void);
    dblXY getForces(void);
    void setVelocity(dblXY);
    PP getPhysicalProps(void);
    void setPhysicalProps(PP);
    BOX getBOX(void);
    void writeInfo(void);
    void togglePause(void);
    bool isPaused(void);
    void checkEdges(void);
    void setEdgePosition(void);
    bool blnstarted_; 
    bool blncheckphysics_; 
    void addForce(dblXY);
    dblXY getdbLOC(void);
    void  setdbLOC(dblXY);
  private:

    uint ballID_;  
    bool blndragenabled_;  
    clr color_; 
    BOX collisionbox_; 
    SDL_Rect screen_place_; 
    LOC place_; 
    dblXY vel_; 
    dblXY dblLOC_; 
    dblXY acc_; 
    PP props_; 
    VPath path_; 
    double deltat_; 
    dblXY forces_; 
    bool paused_; 
    void show(void);
    void drawPath(LOC);
    void dragCalcValues(void);
    void dragUpdateAcc(void);
    void doFriction(void);
    void updateCollisionBox(void);
};
/*****************************************************************************/
#endif // __CANNONBALL_HEADER__