Arrow Key Movement

Scratch programming concepts covered include:

• Use of the green flag control block to initialise the application by clearing the stage and setting the sprite down in the middle of the stage with the pen down.
• Move and Turn motion blocks for moving the sprite around with turtle graphics.
• Use of the X and Y axis for setting position and the Set XY and Change XY motion blocks.
• Use of the keypress control blocks to allow the arrow keys to control sprite movement.