Step 4: Player Movement

Now, lets bring the game to life with a little movement:

• Repeat while "Left Arrow" is pressed
• X position of > 10

• : Set X position to X( "" )-2

• Repeat while "Right Arrow" is pressed
• X position of < Frame Width-10

• : Set X position to X( "" )+2

Holding the left or right arrow key will now move the Ship 2 pixels either left or right, providing it is within 10 pixels of the window edge.