Comments on: Example 4-3: Varying Variables

By: Gabe

Gabe — Sun, 18 Oct 2009 17:42:42 +0000

Thanks. I’m sure I’ll have more questions in the hover chapters…:)

admin — Sun, 18 Oct 2009 15:49:24 +0000

In this case, you just want to define a variable for the size of the circle, instead of hardcoding the number 50 in, i.e.

int circleW = 100;
int circleH = 100;

Then you use those variables when drawing the circle.

  ellipse(circleX,circleY,circleW,circleH);

And then adjust the values however you like!

  circleW = circleW + 1;  // Growing
  circleH = circleH - 1;  // Shrinking

Gabe — Sun, 18 Oct 2009 06:31:37 +0000

so what is the solution to varying the speed at which the circle grows? I wound up using the abs() call as it was in the previous chapter.