Minecraft Classic terrain generation in roblox

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#1

A few weeks ago, I came across an old .rblx file of a Minecraft terrain generator I made over a year ago. I started working on it after I found this page on GitHub and abandoned it after getting to the water and lava part. Well, I decided to start over on it and try to make the code a lot cleaner, and after about 2 days I got the basic generation done. After spending the next 3 days fixing some bugs and adding support for textures, I found a tool to decompile and deobfuscate the Minecraft classic 0.30c jar file and started comparing my code to its code. I ended up porting Minecraft Perlin noise class to Lua, and after that, I found a node.js module called java-random, which is an implementation of java.util.Random, and I ported it too. After another 5 days of debugging and making sure my code worked the same way as Minecrafts code, I got this result:

(sorry for the low framerate, I don’t have a very good computer)

Compared to Minecraft:

In order to get the same world generated each time, I had to mod the game to use a default seed of 1. Since it uses a working implementation of the java.util.Random class, it can generate identical worlds.
It can generate worlds of any size, but I have it set to use the only sizes you can choose from Minecraft:
Small (128x128)
Normal (256x256)
Huge (512x512)
I would upload screenshots of these but the hard drive partition I saved them to get corrupted.
Currently, the only issue I’m facing is how low the fps get while rending all the blocks. I think this is happening because of how many SurfaceGuis are being rendered.

You can test it out here:

38 Likes
JavaRandom v1.0.1 | A pure Lua implementation of Java's Random class
#2

It’s awesome! The result looks similar.
In some ways, I got nostalgia…

5 Likes
#3

You should totally re-create Minecraft in Roblox. Just make the generation bigger, add block placement, destroying, first person, mobs, and you got yourself Minecraft!

2 Likes
#4

That is actually what I’m planning on doing since I have decompiled/deobfuscated source code of Minecraft c0.30_01c

3 Likes
#5

I have added in a loading screen, and the fps/chunk updates counter, but I will probably need to disable textures because SurfaceGuis seems to make it way laggier than just using decals.

2 Likes
#6

What if you used SurfaceApperence? I’m not sure if they support multi face textures or not though.

2 Likes
#7

image
The best alternative would be a Texture, but it would need to have a property like ImageLabel.ResampleMode, or else you get something like this:
image
While I need something like this:
image

3 Likes
#8

Ah I see. My bad! Well you could export a cube from blender and use that but like I said before I’m not sure if they even support multi face textures.

1 Like
#9

It doesn’t, it also doesn’t support U, V offsets, or transparency.
image
It also appears to use linear interpolation for scaling.

5 Likes
#10

Do you still have the scripts? I was looking for a script like this, All didn’t work

2 Likes
#11

This Is the best thing I have seen on the devforum so far!

2 Likes
#12

i do, but it relies and a bunch of other modules i made. i can send you the place file, but it will be missing textures

2 Likes
#13

can u send me the place file pls? i dont mind about the textures

1 Like
#14

c0.30_01c.rbxl (79.0 KB)
sorry for the late reply, here you go

2 Likes
#16

hey, thanks! and sorry i didn’t notice your reply, i didn’t get a notification : P

1 Like
#17

I know this is a bit of a late reply, but you could simply resize the texture to 1028x1028 and it would look better.

2 Likes
#18

would be more laggy then it already is

btw to resolve the lag issue you could raycast from each side of the blocks when a block is broken or placed, and if the side is covered by a block then don’t render it. similar to what Minecraft does already

#19

no no, i mean you could then use decals instead of surfaceguis.

#20

yeah i know, would still be laggy with 1024 pixels on every side for like 1000 textures

#21

it would be the same since roblox stretches all textures to 1024x1024 meaning it would perform the same as the bad looking decal but less stretched