Y5/6 Scratch LQ: How do I turn my ideas into code?

• Write/think what you want your sprite to do – in detail
• Try to think like a computer

Try these examples

Keyboard controls

• If I press right arrow, move 10 steps
  • Test it out
• If I press right arrow, move 10 steps left (use -10)
  • Test it out – you should now be able to move left and right…
  • But does it look good?  How can we improve it?

Gravity

• Move sprite down all the time
  • Moving down means reducing the y coordinate
  • All the time = forever loop

Platforms

• If sprite is standing on a platform, don’t fall 
• Draw some platforms on the background.  Make them the same colour
• You need to add an “if” part of your gravity block:
• if sprite not touching colour of platform then fall
• You need to find a NOT block for this

Jumping

• When I press space bar, jump
• Jump is the opposite of fall – change the y value
• Can you jump in mid-air?  How can you stop this?

 

 

Sprites for your game

• Search for png images, eg “zebra png” (This will find pictures with no background)
• Use “search tools” – “usage rights” – “labelled for non-commercial use”
• Save image as…  then in Scratch import sprite from file
• You may need to edit pictures if you want different costumes