I tried https://github.com/cs50/spl
Even got little success, but it's not working properly and keeps throwing me this error...
/**
* bounce.c
*
* David J. Malan
* malan@harvard.edu
*
* Bounces a circle back and forth in a window.
*/
// standard libraries
#include <stdio.h>
// Stanford Portable Library
#include <spl/gevents.h>
#include <spl/gobjects.h>
#include <spl/gwindow.h>
int main(void)
{
// instantiate window
GWindow window = newGWindow(320, 240);
// instantiate circle
GOval circle = newGOval(0, 110, 20, 20);
setColor(circle, "BLACK");
setFilled(circle, true);
add(window, circle);
// initial velocity
double velocity = 2.0;
// bounce forever
while (true)
{
// move circle along x-axis
move(circle, velocity, 0);
// bounce off right edge of window
if (getX(circle) + getWidth(circle) >= getWidth(window))
{
velocity = -velocity;
}
// bounce off left edge of window
else if (getX(circle) <= 0)
{
velocity = -velocity;
}
// linger before moving again
pause(10);
}
}
