Fishing!
The shark moves, the fish swims, but they don’t interact: if the fish swims right into the shark’s mouth, nothing happens. Time to change that!
First, you need to know if the fish is touching the shark. For this, you’ll need a Control block and a Sensing block.
Add the if...then Control block inside the forever loop of the fish sprite, below the if on edge bounce block.
Drag the touching... block into the space at the top of the if...then block, and click the little triangle to select the shark sprite’s name. If you haven’t changed it, it’ll be ‘Sprite1’.
How does it work?
The if...then Control block needs to be given a True/False value.
Sensing blocks collect information, like where the sprite is, what it’s touching, etc. You’re using this block:
From this block’s pointy ends, you can tell it’s going to give you the True/False value that the if...then block needs.
Of course, you’ve just added an if...then block without adding anything for the ‘then’ part. So at the moment your script is checking whether the fish sprite is touching the shark sprite, but it’s not making anything happen in response.
You can make the fish disappear, as if the shark ate it, by using the hide block.
Find the hide block in the Looks list, and put it inside the if...then block, like so:
Now once the shark catches the fish, the fish disappears for good. That’s not great.
Put the show block from Looks in at the very start of the fish code, so you can reset the game.
That’s already better, but you don’t want the player to have to restart the game every time they catch a single fish!
Update the code inside your if...then block to look like this:
How does this work?
You are being clever here: when the fish is hidden, it waits, moves, and then shows up again.
It looks like lots of fish keep appearing, but it’s that one sprite moving around!
That’s a game! But there’s no way to keep score yet, or to win. You can fix that too — on the next card!