Passing Variable Colors to the Brain Screen

Programming Support VEX Coding Studio Tech Support
#1

Is it possible to pass colors as variables to the brain screen so that the color of a rectangle is a variable and is dependant on other factors?

#2

sure, try this example.


int main() {
  vex::color c;
  int hue = 0;

  Brain.Screen.setPenWidth(20);
  
  while(1) {
    // set color, use hue, saturation, value
    c.hsv( hue, 1.0, 1.0 );
    // increase hue, it's in range 0 to 360 degrees
    hue = (hue + 5) % 360;
    // set drawing color
    Brain.Screen.setPenColor( c );
  
    // draw rectangle
    Brain.Screen.drawRectangle( 140, 20, 200, 200 );

    // stops flicker at expense of lower update rate
    Brain.Screen.render();
    // Allow other tasks to run
    //this_thread::sleep_for(16);
  }
}
#3

Thank you

#4