Translations:Var is/10/en

From StarLogo Nova Wiki

The code above creates variables to draw stripes across the screen. Since it is useful to keep track of the current y-value to draw each stripe, the ‘var’ block has been used to declare this variable. Since the value of the variable needs to change in order to change the location of the agent drawing the stripes, the ‘set to’ block is used to set the variable to the current y-value of the agent.