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Although the project on its own could be relatively straightforward, it is quite useful to first get accustomed to the environment you're operating in. (Hint: It's different than usual.)

1. Get to know the library of your choice: the minilibx if you like memleaks, the MLX42 if not. The former has quite a good guide made by hsmits, the latter a comprehensive official documentation.
2. Read the documentation.
3. Really. At least until here.

Ready? Okay. What do we need to do?

We need to:

1. Parse the map – and extract the (3D) points from it.
2. Project those points to 2D.
3. Draw them, as well as the lines in between.

And that's already it. Along the lines, you'll discover isometric projection, as well as 'the' original line drawing algorithm.

Some minor remarks:

• Drawing outside the available pixels (meaning: drawing outside of the bottom of the window) results in Segfaults. Make sure to protect against that :)
• The image in the subject does not obey isometric projection – do it right :)
• It is also colored – I don't know why, but since the subject does not state it, we're quite certain you don't have to implement it.

• Does the program always close in a clean way? (clicking 'x', typing ESC, closing the window otherwise?)
• Make sure you don't have memory leaks – not from your own code, and not from wrong library handling :)
• Think about the evaluation.
  Does it happen on your PC? If not, depending on which library you used, you might need to install some things to get your project up and running, right? Make sure to take preparations for that.

Since you'll be doing another graphics project during the core, we don't think there is much more to say (or practice) for here. Maybe enjoy some free time, or meet some peers in the kitchen?

And with that:

• A nice repo and wiki.
• The minilibx documentation.
• The MLX42 documentation.
• If you're doing the color stuff, check this out.