c++ - How to move one object from another class with keyboard in OpenGL? -

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how can move keyboard sphere in opengl if sphere 1 class?

main:

#include "glos.h" #include <gl.h> #include <glu.h> #include <glut.h> #include <glaux.h> #include <math.h>   #include"sphere.cpp" using namespace std;  void myinit(void); void callback myreshape(glsizei w, glsizei h); void callback display(void);  sphere sfera1(0, 0, 0, 1); sphere sfera2(5, 0, 0, 1);   void myinit(void) {     glenable(gl_lighting); // activare iluminare     glenable(gl_light0);    // activare sursa 0      gldepthfunc(gl_less);     glenable(gl_depth_test); }  void callback display(void) {     glclear(gl_color_buffer_bit | gl_depth_buffer_bit);     sfera1.draw();     sfera2.draw();     glflush(); }  void callback myreshape(glsizei w, glsizei h) {     if (!h) return;     glviewport(0, 0, w, h);     glmatrixmode(gl_projection);     glloadidentity();     gluperspective(65.0, (glfloat)w / (glfloat)h, 1.0, 20.0);     glmatrixmode(gl_modelview);     glloadidentity();     glrotated(25, 0.0, 1.0, 1.0);     gltranslatef(0.0, -1.0, -6.0); }  int main(int argc, char** argv) {     auxinitdisplaymode(aux_single | aux_rgb | aux_depth16);     auxinitposition(0, 0, 850, 850);     auxinitwindow("iluminarea");     myinit();     glutspecialfunc(sfera1.keyboardown);     auxreshapefunc(myreshape);     auxmainloop(display);     return(0); }

sphere class:

#include "glos.h" #include <glut.h> #include <math.h>   class sphere{  public:     float x, y, z, r;     bool testcolision = false;     sphere(float x, float y, float z, float r){         this->x = x;         this->y = y;         this->z = z;         this->r = r;     }     bool colision(sphere sfera){         float d = sqrt(pow(++x - ++sfera.x, 2) + pow(++y - ++sfera.y, 2) + pow(++z - ++sfera.z, 2));         if (d <= r + sfera.r){             return true;         }         else{             return false;         }     }     void draw(){         glpushmatrix();         gltranslatef(x, y, z);         glutsolidsphere(r, 100, 100);         glpopmatrix();     }     void keyboardown(int key, int x, int y) {         if (key == 'w')             this->x += x;         if (key == 'a')             this->x -= x;         if (key == 'd')             this->y += y;         if (key == 's')             this->y -= y;          glutpostredisplay();     } };

i try move glutspecialfunc(sfera1.keyboardown) or auxkeyfunc(aux_right, sphere1.mutadreapta1) in both case cant... can tell me how that?

are glut , aux supposed inter-operable ? or glutspecialfunc typo auxspecialfunc ? ;-)

anyway it's better use (glut)keyboardfunc (on systems, up/down/special doing bizarre things).


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