CODEWITHSUNDEEP
visual-studio
Wei Kang
Wei Kang

Reputation: 183

How to loop object in visual studio 3D

I run the code below in display() but the object tree didn't show. Anything wrong about the for loop? Do i need to put any header file to exucute for loop ?

tree(float f){
// CODE CREATED OBJECT,NO PROBLEM HERE
}

void display()
{
   for (int i=216;i>=317;i++)  //PROBLEM HERE,FOR LOOP NOT EXECUTED
   {
     glPushMatrix();
     glTranslated(i, 6.8, -5.3);
     glScaled(0.2, 0.2, 0.2);
     tree(3.5); 
     glPopMatrix();

   }
}

int main(int argc, char** argv) 
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
glutInitWindowSize(screenWidth, screenHeight);
glutCreateWindow("Unexpected Adventure");
initRendering();
glutDisplayFunc(display);
glutReshapeFunc(handleResize);
glutIdleFunc(idle);
glutKeyboardFunc(keyboard);
init();
initGL();
glutMainLoop();
}

Upvotes: 0

Views: 32

Answers (1)

John Alexiou
John Alexiou

Reputation: 29264

I recommend always loop from 0 to n times, and do the math inside the loop

for (int i=0; i<100; i++)
{
    glPushMatrix();
    float x = 216 + i;
    glTranslated(x, 6.8, -5.3);
    glScaled(0.2, 0.2, 0.2);
    tree(3.5); 
    glPopMatrix();

}

Upvotes: 1

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