Moving using variables

• • Watch FunProgramming [Video #9]

  • Here’s a program I wrote:

int xValue;

void setup()

{

size(400,400);

xValue = 0;

strokeWeight(25);

frameRate(1);

stroke(0);

}

void draw()

{

background(255);

point(xValue,200);

xValue = xValue + 25;

if (xValue > 400)

{

xValue = 0;

}

}

• • Change the program to move faster

  • Change the program to move diagonally.

  • Change the program so that the color of the point changes color as it goes across the screen,starting with a black spot on the left and finishing with a white spot on the right.

Like this:

Click on this image to view animation