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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.
Now, follow the given script:
Coding Corner 73

