static bool displaySquare[2];
GLfloat xpt[2];
GLfloat ypt[2];
void animateSquares(void)
{
for (int i = 0; i < 2; i++)
{
displaySquare = true;
xpt = 0;
ypt = 15;
if (displaySquare = true)
{
-translate each for xpt and ypt-
-drawing each objects for xpt,ypt-
}
}
}
void display(void)
{
glPushMatrix();
animateSquares();
glPopMatrix();
glutSwapBuffers();
}
void mouse(int button, int state, int x, int y)
{
switch (button)
{
case GLUT_LEFT_BUTTON:
displaySquare[0] = false;
glutPostRedisplay();
break;
default:
break;
}
}
/*
*/
Creating multiple instances of an object
Author
(beginners question)
Im working on some code to animate 2 objects with the same properties (using a loop), then later removing one by clicking a button.
My code draws the squares, but the code for removing one of them doesnt seem to be work, and I cant figure out why.
I was hoping for some opinions on what Ive come up with so far,
arrays:
boolean is whether the scene is drawn or not
float xpt/ypt store the center pts of each square in an array
animateSquare function -> goes through a loop and sets boolean to true, and sets the x/y coords. Then (if its true) displays the squares to the screen
mouse function -> sets boolean[0] to false to remove 1 of the squares from the screen
as I said, it draws 2 squares but the code for removing one wont work, can anyone offer some suggestions altering it ?
on each call of animateSquares you set displaySquare to true, regardless of what it was set to before, so you will always draw all teh squares..
Author
so tell me if I got this right, the mouse function wont set bool displaySquare[0] to false, as display will recall the animateSquare function and reset it to true every redisplay?
[Edited by - mounty0 on November 13, 2004 6:49:26 PM]
[Edited by - mounty0 on November 13, 2004 6:49:26 PM]
Quote:Original post by C-Junkie
Worse. He sets it true twice. :)
oh yes, good point I missed the wrong operator in the if statement (I blame the vodka in my brain, hehe [grin])
mounty0;
You set the value to false in the mouse routine, but then it just resets the value to true (twice, as C-Junkie pointed out) in the animateSquares function, thus over riding the change.
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