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# Move with the controller
Arcade Foundations · Sprites and movement
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## Today
**We are learning to** hand a sprite to the arrow keys with move with buttons, and choose how fast it goes across and down.
- I can let the player steer a sprite with the arrow keys.
- I can choose which way a sprite can move, and how fast.
- I can keep a sprite on the screen.
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## Why it matters
> In every game you have played, a button press becomes movement on the screen. One block makes that link.
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💬 Discussion
## Predict
**The plane has move with buttons with speeds 100 and 0. You hold the up arrow. What happens?**
- The plane flies up
- Nothing: the plane can only move left and right
- The plane flies up and to the right
- The plane jumps to x 100, y 0
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✅ Check
## What happened?
* Nothing. The second number is the speed up and down, and it is 0, so up and down do nothing. The numbers are speeds, not a place.
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✍️ Activity
## Run it
Open the lesson at this step and try it together.
[studio.learningwaypoints.com/tutorials/code/arcade/arcade-moving/?full=step-2#step-2](https://studio.learningwaypoints.com/tutorials/code/arcade/arcade-moving/?full=step-2#step-2)
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💬 Discussion
## Investigate
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✅ Check
## What does it do?
**Match each block with what it does to a sprite.**
| | |
|---|---|
| `move with buttons` | A. stops it at the edge of the screen |
| `set stay in screen` | B. runs its blocks each time A is pressed |
| `set position` | C. puts it at one place, once |
| `on A button pressed` | D. lets the arrow keys steer it, while a key is held |
* Answer: move with buttons → D. lets the arrow keys steer it, while a key is held; set stay in screen → A. stops it at the edge of the screen; set position → C. puts it at one place, once; on A button pressed → B. runs its blocks each time A is pressed
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✅ Check
## Which way is faster?
**A sprite has move with buttons with speeds 50 and 100. Which way does it move faster?**
- Left and right
- Up and down
- The same both ways
- Neither: it jumps to (50, 100)
* Answer: Up and down
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✅ Check
## Kim's cloud
**Kim's arrow keys move the cloud, not her plane. What did she do?**
- The plane needs a velocity
- Her move with buttons block names the cloud
- The cloud was made first
- The plane is the wrong kind
* Answer: Her move with buttons block names the cloud
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✍️ Activity
## Remote control (4 min)
One student is the sprite. The class holds up cards: across speed and up-down speed. The 'remote' presses arrows; the sprite moves only the ways its speeds allow.
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✍️ Activity
## Modify
- **Only across:** Make the plane fly left and right only, like a ship along the bottom of the screen.
- **Dash:** Add an event: each press of **A** dashes the plane 30 pixels to the right. Press it a few times.
[Open this step](https://studio.learningwaypoints.com/tutorials/code/arcade/arcade-moving/?full=step-4#step-4)
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✍️ Activity
## Make
Make a **ship** for a space game:
- it sits near the **bottom** of the screen
- the arrow keys move it **left and right only**
- it **cannot leave** the screen
[Open this step](https://studio.learningwaypoints.com/tutorials/code/arcade/arcade-moving/?full=step-5#step-5)
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✍️ Activity
## Change a goalkeeper
This goalkeeper guards a goal on the left. Make it move **up and down only**, a bit slower, and keep it on the screen.
[Open this step](https://studio.learningwaypoints.com/tutorials/code/arcade/arcade-moving/?full=step-6#step-6)
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✍️ Activity
## Escape test (3 min)
Swap ships with the next pair. Can theirs leave the screen?
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✅ Check
## Exit ticket
**move with buttons has speeds 0 and 80. Which arrow keys do something?**
* Only up and down. The first number, the speed across, is 0.