Ouch!
 

Create a project named Ouch! and Save it in your H: Drive .

This lesson is designed to introduce you to the concept of conditional statements and the use of the primitive colorunder.

 

 if colorunder = 15 [setsh 34 fd 10]

                         or
if colorunder = "red [setsh 7 bk 5]

 

The project must have:

 

  • Button
  • A black turtle
  • 3 red triangles
  • 3 blue circles
  • 3 green shapes of various sizes
  • 2 yellow lines or different lengths
  • 1 black shape
  • 1 orange shape
  • 1 purple shape

 

The project must be able to:

  • If  the turtle touches a red shape it  must change direction to the right 27 degrees .
  • If the turtle touches a blue shape an announce box  appears stating OUCH! and the turtle changes direction left 136 degrees.
  • If the turtle touches a green shape have it changes shape to a cow for 3 seconds jumps then forward 30 and then return the shape to a black turtle.
  • If the turtle touches a yellow line have it setsize 80.
  • If the turtle touches black have it set heading 0

What happens when the turtle's pen is down?

Primitives used:

if

[]

colorunder

announce

Extra Credit

Make your turtle turn red when it hits a red shape and blue when it hits a blue shape. Make your turtle grow when it hit red and shrink when it hit blue.

 

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