How AI Helps You Change Code Someone Else Wrote

End-of-lesson check

15 questions · take it digitally for instant feedback at tendril.neural-forge.io/learn/quiz/end-explorers-ai-coding-AI-and-changing-existing-code

1. You find a game online and want to add a reset button to it. What should you do FIRST?

   1. Delete all the code and start from scratch
   2. Paste the code to AI and ask for a reset button addition
   3. Read and understand what the existing code does before making changes
   4. Run the code first to see if it crashes

2. Which change request to AI is MOST specific and likely to get great results?

   1. 'Make it better'
   2. 'Make the player jump higher'
   3. 'Change the player jump height from 5 to 10 pixels'
   4. 'Do something cool to the code'

3. DJs remix music by taking existing songs and making them fresh. How is coding similar?

   1. Both require expensive equipment
   2. Coders take existing code and modify it to create new things — remix culture exists in both!
   3. DJs and coders both use headphones to work
   4. Both are only done by professionals

4. You ask AI to 'make the background animated instead of plain white.' This is an example of:

   1. Creating new code from scratch
   2. Modifying existing code to add a feature — a targeted upgrade
   3. Deleting the background code
   4. A bug you need to fix

5. Before asking AI to change code, you should save a copy called 'original-v1.' Why?

   1. So AI has two files to compare
   2. If AI's changes break something, you can always go back to the working original
   3. Version names help AI understand the code better
   4. You need v1 to create v2 — the computer requires this

6. You ask AI: 'What ELSE might need to change if I change the player speed?' Why is this smart?

   1. It's a polite way to ask AI
   2. Changing one part of code can break other parts — this question identifies those connections
   3. It makes AI give a longer, more detailed answer
   4. The computer requires all connected code to change at the same time

7. You change the score to count by 2s instead of 1s. What should you do IMMEDIATELY after making the change?

   1. Make 5 more changes quickly
   2. Test the code to make sure the score now correctly counts by 2s
   3. Delete the original version since you're done
   4. Ask AI to make more changes before testing

8. Tweaking is described as 'faster than starting fresh.' When is this TRUE?

   1. Always — never start from scratch
   2. When existing code mostly does what you want and you just need adjustments
   3. Only when code has fewer than 10 lines
   4. Tweaking is actually always slower — it's just more fun

9. You want to make a game character jump higher. Which prompt to AI gives the BEST result?

   1. 'Change this [paste code]'
   2. 'In this code [paste code], find the jump height variable and increase it. Explain what you changed.'
   3. 'Fix this code please'
   4. 'Make the jump thing bigger'

10. What does 'reading code before changing it is like knowing a house before painting it' mean?

    1. Both require owning a home
    2. Understanding existing code helps you make changes that improve it without accidentally breaking things
    3. Painting code is a real technique used by professional coders
    4. Houses and code are both built with wood

11. Which of these is an example of the 'code remix' approach that professional coders use?

    1. Always writing every line of code yourself from nothing
    2. Finding a working game template and modifying it to fit your specific game idea
    3. Copying code without reading or changing it
    4. Asking AI to write brand new code every time

12. AI changes code and now the score works by 2s but the game ending logic broke. What was the most likely mistake?

    1. AI can't be trusted with any code changes
    2. The game ending logic depended on the score incrementing by 1 and that connection wasn't checked
    3. The computer is too slow to handle the change
    4. The change was made on a Friday

13. What makes 'make the background animated' a better request than 'make it better'?

    1. 'Make the background animated' is shorter
    2. It describes exactly what you want — no guessing needed
    3. 'Make it better' is impolite and AI refuses vague questions
    4. Animation is always better than other improvements

14. A skilled code modifier is compared to a 'Code DJ.' What ELSE does a DJ do that parallels good code modification?

    1. DJs perform for free, so coders should too
    2. DJs listen carefully to the original music before remixing — coders read the original code before changing it
    3. DJs only perform at night — coders should only code at night
    4. DJs use computers, so all DJ skills transfer directly to coding

15. What is the COMPLETE, step-by-step process for safely modifying code with AI?

    1. 1. Ask AI to change it. 2. Hope it works.
    2. 1. Read and understand the original. 2. Save a backup (v1). 3. Ask AI specifically what to change. 4. Test the result. 5. Ask what else might be affected.
    3. 1. Delete the code. 2. Ask AI to write it better.
    4. 1. Skip reading — it takes too long. 2. Make all changes at once. 3. Test if anything broke.