Programming question (Page 2 of 2)

/////////////////////////////////////////////////////////////////////////////////////////////////////////
// SimpleGamePlugin
// MouseClick.h
// 
// Code : Anael Seghezzi & hog
/////////////////////////////////////////////////////////////////////////////////////////////////////////

#ifndef _MOUSE_CLICK_H
#define _MOUSE_CLICK_H

#include <MEngine.h>


class MouseClick : public MBehavior
{
public:

    // constructors / destructors
    MouseClick(MObject3d * parentObject);
    MouseClick(MouseClick & behavior, MObject3d * parentObject);
    ~MouseClick(void);

private:
    
    // custom variables

    const char* m_cameraName;
    const char* m_sceneName;
    MVector4 m_colour;
    const char* m_soundName;
    const char* m_functionName;
    bool m_play;
    
public:

    // destroy
    void destroy(void);

    // get new
    static MBehavior * getNew(MObject3d * parentObject);

    // get copy
    MBehavior * getCopy(MObject3d * parentObject);

    // name
    static const char * getStaticName(void){ return "MouseClick"; }
    const char * getName(void){ return getStaticName(); }

    // variables
    unsigned int getVariablesNumber(void);
    MVariable getVariable(unsigned int id);

    // events (virtuals from MBehavior class)
    void update(void);
    //void onBeginScene(void);
    void runEvent(int param){}
};

#endif

/////////////////////////////////////////////////////////////////////////////////////////////////////////
// SimpleGamePlugin
// MouseClick.cpp
// 
// Code : Anael Seghezzi & hog
/////////////////////////////////////////////////////////////////////////////////////////////////////////

#include "MouseClick.h"


/////////////////////////////////////////////////////////////////////////////////////////////////////////
// Init, this part is always similar, constructor, copy constructor etc
/////////////////////////////////////////////////////////////////////////////////////////////////////////

// constructor
MouseClick::MouseClick(MObject3d * parentObject):
MBehavior(parentObject),
m_cameraName(""),
m_sceneName(""),
m_colour(1,1,1,1),
m_soundName(""),
m_functionName(""),
m_play(true)
{}

// copy constructor
MouseClick::MouseClick(MouseClick & behavior, MObject3d * parentObject):
MBehavior(parentObject),
m_cameraName(behavior.m_cameraName),
m_sceneName(behavior.m_sceneName),
m_colour(behavior.m_colour),
m_soundName(behavior.m_soundName),
m_functionName(behavior.m_functionName),
m_play(behavior.m_play)
{}

// destructor
MouseClick::~MouseClick(void)
{}

// destroy function : always similar
void MouseClick::destroy(void)
{
    delete this;
}

// getNew function : always similar
MBehavior * MouseClick::getNew(MObject3d * parentObject)
{
    return new MouseClick(parentObject);
}

// getCopy function : always similar
MBehavior * MouseClick::getCopy(MObject3d * parentObject)
{
    return new MouseClick(*this, parentObject);
}

/////////////////////////////////////////////////////////////////////////////////////////////////////////
// Variables, allow to access custom variable from script and from Maratis Editor
/////////////////////////////////////////////////////////////////////////////////////////////////////////

unsigned int MouseClick::getVariablesNumber(void){
    return 5;
}

MVariable MouseClick::getVariable(unsigned int id)
{
    switch(id)
    {
    default:
        return MVariable("NULL", NULL, M_VARIABLE_NULL);
    case 0:
        return MVariable("cameraName", &m_cameraName, M_VARIABLE_STRING);
    case 1:
    return MVariable("sceneName", &m_sceneName, M_VARIABLE_STRING);
    case 2:
        return MVariable("colour", &m_colour, M_VARIABLE_VEC4);
    case 3:
    return MVariable("soundName", &m_soundName, M_VARIABLE_STRING);
    case 4:
    return MVariable("functionName", &m_functionName, M_VARIABLE_STRING);
    }
}

/////////////////////////////////////////////////////////////////////////////////////////////////////////
// Events
/////////////////////////////////////////////////////////////////////////////////////////////////////////










// update function (called by MGame class by default)
void MouseClick::update(void)
{
MEngine * engine = MEngine::getInstance();//engine
MGame * game = engine->getGame();//game
MSystemContext * system = engine->getSystemContext();
MInputContext * input=engine->getInputContext();

if( !game->isRunning())
        return;

    MObject3d * parent = getParentObject();
    MLevel * SampleLevel=engine->getLevel();//level
MScene *    SampleScene = SampleLevel->getSceneByName(m_sceneName);//scene
MOText*    SampleText = SampleScene->getTextByName(parent->getName());//text
MOCamera*    SampleCamera=SampleScene->getCameraByName(m_cameraName);//camera
    MOSound * SampleSound=NULL;
    SampleSound=SampleScene->getSoundByName(m_soundName);
    MScriptContext * SampleScript=engine->getScriptContext();
MBox3d*    bbox = SampleText->getBoundingBox();
unsigned int width=0;
unsigned int height=0;
    system->getScreenSize(&width, &height);
    
float mouseX = input->getAxis("MOUSE_X");
float mouseY = input->getAxis("MOUSE_Y");
MVector3 origin = SampleCamera->getTransformedPosition();
MVector3 dest = SampleCamera->getUnProjectedPoint(MVector3(mouseX*width, (1.0f - mouseY)*height, 1.0f));
MVector3 localOrigin = SampleText->getInversePosition(origin);
MVector3 localDest = SampleText->getInversePosition(dest);

    if(isEdgeToBoxCollision(localOrigin, localDest,bbox->min,bbox->max)){        
        SampleText->setColor(m_colour);    
        if(SampleSound)
            if(m_play){
            SampleSound->play();
            m_play=false;
            }
            if(input->onKeyDown("MOUSE_BUTTON1"))
            //if(SampleScript)
            SampleScript->callFunction(m_functionName);
    }
    else
    {
        SampleText->setColor(MVector4(0.8,0.8,0.8,0.6));
    m_play=true;
    
    }
    
}

...
function funcName()
...
end

SampleText->setColor(MVector4(0.8,0.8,0.8,0.6));

MPhysicsContext * Phys=engine->getPhysicsContext();
MObject3d * parent = getParentObject();
Phys->addCentralForce(objId?, MVector3(x,y,0));