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nothis

>Super Mario World

Okay, with some script...

>Here is a video, where a human (not a script!) creates a playable Flappy Bird clone this way.

Wait, what?!

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Super impressive. I wouldn't count this as being turing complete. You could say that the SNES itself is turing complete. He successfully got a turing complete machine to run arbitrary code. It was the SNES itself running this code he injected, not some rule engine built into the game. This is much different than getting CSS or HTML to run arbitrary code.

Still counts since he managed to create the working method to inject the code which allows the game to be Turing complete. A medium with no way of entering or traveling through it isn't really a medium.

The StarCraft community created a level editor and a scripting language around a buffer overflow in the game: http://0xeb.net/wp-content/uploads/2018/02/StarCraft_EUD_Emu...

That was fascinating. The amount of effort that Blizzard went through to "emulate" the original buffer overflow is ridiculous.

Also the mod community's epScript compiler is itself a very clever feat, especially its use of self-modifying "code".

It's a human following a script... which is still impressive nonetheless, even if for nothing other than the patience and planning required to do something like this.

I can't even begin to fathom how someone would be able to do this. Wouldn't they have to perform many (100s?) pixel-perfect actions in order to get everything exactly as intended?

He starts by writing dozens of bytes to check if the written bytes are correct or not (along with other side effects for bootstrapping), and some more to see the exact bytes to be written before applying them. And then finally 300+ actual bytes are written. Not as difficult overall, but initial steps would still require extreme patience.

If you watch the video you'll see that one of the first things he does is to make the coin counter show Mario's x-position in the level. But up until that point yes, he has to do a lot of pixel-perfect actions. Extremely impressive.

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