Impossibility of spawning at borders (web)
4 years ago
Denmark

I got a bit suspicious of the border% records due to the gap between #2 and #3, so I decided to look into the code that runs Minecraft Classic (web).

TL;DR: It is impossible to spawn less than 32 blocks from the border without cheating. The #1 and #2 times on border% are cheated

The code that picks the spawn location is:

https://i.imgur.com/R5iAsRh.png

Since this is obviously minified, and thus fairly unreadable, I took the liberty of translating it into pseudocode:

https://i.imgur.com/yLqWTUT.png

In other words, the spawn point is chosen randomly within (worldsize/4) of the map center. For this reason it's impossible to spawn at the border.

Combined with the fact that both #1 and #2 don't show clicking the "Generate new level..." menu, and start at the pause screen, I think it's fair to say they're both cheated.

The #3 time, which shows the "Generate new level..." menu, spawns exactly 32 blocks from the border, and is thus close to perfect.

تم التحرير بواسطة الكاتب 4 years ago
Denmark

I don't want to start a witch hunt, but the fact that both runners have been previously involved in dodgy behavior ( https://www.speedrun.com/mcc/thread/a69l7 and https://www.speedrun.com/mcc/thread/lznob ) is context worth mentioning

تم التحرير بواسطة الكاتب 4 years ago
Denmark

I'm not gonna claim it's impossible I missed something (it's 106k lines of obfuscated code), but I'd quite like to see video proof of that happening after a "Generate new level...".

Denmark

@SpaceByte Any progress on verifying this?

United States

I will test this as well.

Pear المعجبون بهذا
Denmark

@SpaceByte If you've seen players spawning at border legit (i.e. from start screen) then that's all that's needed - a single video is enough to prove that it's possible. I just haven't found one yet. If one exists, I'd love to see it so we can figure out why it works.

That being said, with how the code works (as described in the OP) plus several hours of my own world generation, I feel fairly confident that my description is correct barring any weird bugs. That's not to say that the existing runs are intentionally cheated, but it currently seems unlikely that they are possible when following the rules.

تم التحرير بواسطة الكاتب 4 years ago
kiwiboost المعجبون بهذا
Nigeria

Honestly, Out of maturity I'm not even gonna lie about those WR's Anymore. Yes those were cheated and I'm pretty sure Space Should own Up to be in the right here. I never really expected it to go this far Props To Birj Man.

Denmark

@Smedgies Takes some balls to come clean like that. I appreciate the honesty.

Nigeria

No shit, hiding in lies is disgusting

Texas, USA
daiyousei
He/Him, She/Her, They/Them
4 years ago

rip #1 run very nice for someone to come clean now if what birj is saying is correct then some people have to say a lot

حذف بواسطة الكاتب
Nigeria

@SpaceByte yknow when you saw i beat it i wanted to see the level of where this will go lmao.

Texas, USA
daiyousei
He/Him, She/Her, They/Them
4 years ago

damn

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