INTRODUCTION TO RANDOM Numbers

We can generate a random number in Scratch between any two numbers. For example, when we use the block below Scratch will randomly pick either 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10.

Random

This block (with the round edges) is a reporter block, that provides a value. We can use this block inside of other blocks that take a value.

pick random blocks

We can use the blocks above to make a character move around the screen randomly!

 

 

Random – Movement

Exercise: Make a character move RANdomly

Make your character move around randomly but still stay within 100 pixels in the x and y direction of the center of the screen (0,0).

  • If they are below y = -100 point they shouldn’t go any lower.
  • If they are above y = 100 they shouldn’t go any higher.
  • If they are to the left of x = -100 they shouldn’t go any farther left.
  • If they are to the right of x = 100 they shouldn’t go any farther right.

These pieces might be helpful:

useful pieces for random cat

Hint: Point in direction might be helpful too!

 

 

 

 

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