The slipping through one-ways glitch.
Posted: 2011.12.13 (21:37)
This glitch has been around for a long time, but no one knew why it happened and there have been all sorts of explanations for it but none of them were correct or could be proven. In fact the most common explanation, that this happens when you fall from 132 pixels high up onto a one way has been proven wrong time and time again.
TRO and I have been messing around with one ways for the past few days, trying to replicate this glitch in different places, and according to our testing the glitch only works at upwards-facing one ways and left-facing one ways placed on specific positions. They seem to be impossible in all other positions, as well as on downward facing one ways and right facing one ways. (Can't be 100% sure though; there maybe things we missed)
We still have no explanation for why it happens though.
These positions aren't just random ones though, there seem to be a pattern to them.
First of all each position is a 4-pixel range at which you can slip through a one way. For example if you can slip through a one way at 264, you should be also able to slip through a 4 pixel range around it, maybe like 264, 265, 266, 267.
Another thing is that the highest one will be the hardest to slip through (in this case 264) while the last one will be ridiculously easy to slip through (267 in this case).
All of these positions seem to be a power of 2 plus either 8, 9, 10 or 11.
There are 4 of these ranges inside the map.
The first range (72 to 75)
2^6 + 8 = 72
2^6 + 9 = 73
2^6 + 10 = 74
2^6 + 11 = 75
The second range (136 to 139)
2^7 + 8 = 136
2^7 + 9 = 137
2^7 + 10 = 138
2^7 + 11 = 139
The third range (264 to 267)
2^8 + 8 = 264
2^8 + 9 = 265
2^8 + 10 = 266
2^8 + 11 = 267
The fourth range (520 to 523)
2^9 + 8 = 520
2^9 + 9 = 521
2^9 + 10 = 522
2^9 + 11 = 523
All other possible positions according to this pattern are either out of the map, or impossible to test since they are too close to the borders.
A small demo showing the glitch on upward-facing oneways in these ranges
A small demo showing the glitch on left facing one ways in these ranges
Again, we have been unable to get this glitch to work on right facing or downward facing one ways.
On another note golfkid, asked on IRC whether the glitch used on 190-4 speedrun is the same glitch as this one. It is not. That one probably has something to do with the ninja going a little into the ceiling and making it over the oneway.
TRO and I have been messing around with one ways for the past few days, trying to replicate this glitch in different places, and according to our testing the glitch only works at upwards-facing one ways and left-facing one ways placed on specific positions. They seem to be impossible in all other positions, as well as on downward facing one ways and right facing one ways. (Can't be 100% sure though; there maybe things we missed)
We still have no explanation for why it happens though.
These positions aren't just random ones though, there seem to be a pattern to them.
First of all each position is a 4-pixel range at which you can slip through a one way. For example if you can slip through a one way at 264, you should be also able to slip through a 4 pixel range around it, maybe like 264, 265, 266, 267.
Another thing is that the highest one will be the hardest to slip through (in this case 264) while the last one will be ridiculously easy to slip through (267 in this case).
All of these positions seem to be a power of 2 plus either 8, 9, 10 or 11.
There are 4 of these ranges inside the map.
The first range (72 to 75)
2^6 + 8 = 72
2^6 + 9 = 73
2^6 + 10 = 74
2^6 + 11 = 75
The second range (136 to 139)
2^7 + 8 = 136
2^7 + 9 = 137
2^7 + 10 = 138
2^7 + 11 = 139
The third range (264 to 267)
2^8 + 8 = 264
2^8 + 9 = 265
2^8 + 10 = 266
2^8 + 11 = 267
The fourth range (520 to 523)
2^9 + 8 = 520
2^9 + 9 = 521
2^9 + 10 = 522
2^9 + 11 = 523
All other possible positions according to this pattern are either out of the map, or impossible to test since they are too close to the borders.
A small demo showing the glitch on upward-facing oneways in these ranges
A small demo showing the glitch on left facing one ways in these ranges
Again, we have been unable to get this glitch to work on right facing or downward facing one ways.
On another note golfkid, asked on IRC whether the glitch used on 190-4 speedrun is the same glitch as this one. It is not. That one probably has something to do with the ninja going a little into the ceiling and making it over the oneway.