MineCraft-One-Week-Challenge
I challenged myself to see if I could create Minecraft in just one week... So lets go!
Video: https://www.youtube.com/watch?v=Xq3isov6mZ8
Note: I continued to edit after the 7 days, however the version seen in the video is found here https://github.com/Hopson97/MineCraft-One-Week-Challenge/tree/eb01640580cc5ad403f6a8b9fb58af37e2f03f0c
Other People's Projects
This was made in a week, as a challenge for a video. There do exist other, more mature and developed Minecraft clones written in C++.
MineTest here: https://github.com/minetest/minetest
Building
You will need GLEW (OpenGL 3.3), GLM and SFML 2.4.1+ libraries w/headers, and this also requires a compiler that supports C++14 (or newer) with threads.
macOS
Install macports from https://www.macports.org
sudo port install glew sfml glm
Ubuntu 17.04+ :
sudo apt-get install libsfml-dev libglew-dev libglm-dev
Ubuntu 16.04
You will need to manually get SFML 2.4.1 or above, as the version in the repos is too old.
Compile Source
make
Day One
End of day one commit: https://github.com/Hopson97/MineCraft-One-Week-Challenge/tree/44ace72573833796da05a97972be5765b05ce94f
The first day was spent setting up boilerplate code such as the game state/ game screen system, and the basic rendering engines, starting off with a mere quad.
The day was finished off by creating a first person camera.
End of day stats:
| Title | Data |
|---|---|
| Time programming Today | 3:21:51 |
| Lines of Code Today | 829 |
| Total Time programming | 3:21:51 |
| Total Lines of Code | 829 |
Day Two
End of day two commit: https://github.com/Hopson97/MineCraft-One-Week-Challenge/tree/98055215f735335de80193221a30c0bb8586fba5
The second day was spent setting up the basic ChunkSection and various block classes.
I also worked out the coordinates for a cube, and thus created a cube renderer.
I finished up the day attempting to create a mesh builder for the chunk; however, this did not go well at all, and two had ended before I got it to work correctly.
End of day stats:
| Title | Data |
|---|---|
| Time programming Today | 4:16:07 |
| Lines of Code Today | 732 |
| Total Time programming | 7:37:58 |
| Total Lines of Code | 1561 |
Day Three
End of day three commit: https://github.com/Hopson97/MineCraft-One-Week-Challenge/commit/78bd637581542576372d75cf7638f76381e933b4
To start the day off, I fixed the chunk drawing. Turns out I was telling OpenGL the indices were GL_UNSIGNED_BYTE, but they were actually GL_UNSIGNED_INT. This took 3 hours to work out...
Anyways, after this I got the game working with more chunks. I now have an area of 16x16 chunks, made out of chunk sections of 16x16x16 blocks.
To finish the day off, I got some naive block editing to work.
End of day stats:
| Title | Data |
|---|---|
| Time programming Today | 3:15:38 |
| Lines of Code Today | 410 |
| Total Time programming | 10:53:36 |
| Total Lines of Code | 1974 |
Day 4
The first thing I did on day 4 was create a sky box using OpenGL cube maps.
After this, I started work on the world generation, eg adding height map and trees.
End of day stats:
| Title | Data |
|---|---|
| Time programming Today | 3:14:15 |
| Lines of Code Today | 523 |
| Total Time programming | 14:07:51 |
| Total Lines of Code | 2489 |
Day 5
I started off the day by cleaning up some of the chunk code, and then proceeded to make the world infinite, but I felt it was not needed, so I simply went back to a fixed-sized world.
I then added an item system. My implementation probably was not great for this, but it was my first time at creating that sort of the thing.
Basically, when a player breaks a block, it gets added to their inventory. When they place a block, a block is placed.
| Title | Data |
|---|---|
| Time programming Today | 2:54:14 |
| Lines of Code Today | 560 |
| Total Time programming | 17:02:05 |
| Total Lines of Code | 3049 |
Day 6
Mostly optimizations, such as view-frustum culling and making the mesh building faster.
Day 7
Focus on improving how it looks, eg adding directional lighting
Also implemented 100% safe concurency :)