Page 87 - TP-Play_V-2.0_Book-5
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Here the condition is the availability of mango.
We can also write this in two ways:
1. if 2. if
mango is available mango is available
then then
make the mango shake make the mango shake
else
make cold coffee
In such situations we use conditional blocks. Scratch has two conditional blocks.
They are:
1. If…then block: In this block if the condition is true, the blocks inside conditional
block will run. If the condition is false, the blocks inside conditional block will
not run. Only the blocks outside the conditional block will run.
2. If…then…..else block: In this block if the condition is true, the blocks inside
then condition will run. If the condition is false, the blocks inside else condition
will run.
You can also use the forever and repeat blocks with these blocks.
Let us make a small script.
Change the sprite to butterfly and change the backdrop to flowers.
Drag the Event block, when green flag clicked to the script area. Drag the control
block, forever to the script area and put it to the green flag block. Drag the move
block and put it inside the forever block. Now, drag the if on edge, bounce block
and put it inside the forever block.
Now, put the control block if…then inside the forever block and snap the
sensing block, touching color in the hexagon of the if loop.
Creating a Game in Scratch 87

