When I make my nether portals I take advantage of the 128 search radius for a portal. The way I do this is first I make my main gate on the surface in the overworld, then I make another at bedrock. That way all you have to do is jump down a hole with a water stop to get down, and enter the portal on the bottom to pop out on top. Pretty standard stuff, my latest world I did exactly that.
I was annoyed with the gate in the nether. When you exited it, you were always facing the edge of the portal. So I took it down, reorientated the direction, and jumped through. To my dismay it now directed traffic to the bedrock portal, so I tried again. This time the surface. After some experimenting, I found that I have a nether portal that links to two gates. Go through on the left side, and it takes you into the mines, go in on the right side, pop out on the surface. Kinda fun...
I like this....I'll have to try it. In my world, I have settled in the far east & far west of the world (2 settlements)..would be a fast way to go from one to the other....faster then rails.....
Your portal is more or less on a threshold between two other portals.
The 128 search only exists when coming into the neither, when coming out it actually searches up to 256 blocks for a portal, not counting y in either direction.
Whenever I make portals, i start with where I want them in the overworld, and I make sure to write down the cords of the two entry blocks before I enter. Next after securing my landing site in the neither my goal is to see 'how close' it acutally is to a perfect link. You can do this by taking the overworld cords that you wrote down and divide them by 3. A perfect match is when both the x,z cords from your oveworld, divided by 3 are equal to the neither portal cords. If its not real close and permitted i can make it closer I take the portal down in the neither and rebuild it as close as possible to a perfect match.
Since we know that cords are divided by 3, we can see that we can have a portal every 4 blocks. As well we know that the y cord does NOT matter. Thus with just alittle work one could setup a portal in thier strip mines below thier base, which leads to the neither, walk a block or two in the neither and exit another portal which links directly to thier base. Its like a quick elevator. Furthermore and if calculated correctly its possible to have a portal lead to two different portals depending one which side of the portal you entered, which is what the OP accidentally stumped across.
The neither is the fastest way to get around in the overworld and IMHO many fail to take advantage of this. A properly setup neither hub can make traveling anywhere in your world, safe and fast.
Your portal is more or less on a threshold between two other portals.
That's what I figured, I just never had it happen. I thought each portal had one tethered to it. The chances of this randomly occurring must be pretty rare.
Yeah the chance of this occurring by accident is pretty rare but not uncommon.
Portals don't 'link' to each other as many believe, instead it takes the players entry cords coming in or out of the neither, their ,x,z cords. If we are entering the neither these cords are 'floored', and then divided by 3, thus if our cords in the overworld are 33,126. The game floors these ( 33, 126 ), this is because in reality, our x,z are not true integers but instead floats and thus are true x,z could be something like 33.4 and 126.3 respectively. Flooring these gives us 33 and 126. Next because we are entering the neither we need to divide by 3 This gives us 11, and 42, and thus the game actually begins looking at 11,42 for a neither portal, it will search upto ( 64-x+64, 64-z+64) where x is 11, and z is 42. If it does not find one, the game starts again at 11,42 and will try to make one, many times the area is blocked with other blocks, lava, and what not and thus the game keeps searching expanding the sphere till it finds a spot it can create one, if it still doesn't find one, long distance portals in the neither may end up being used.
In coming out of the neither it reverses the calculation where it divides by 3, instead we multiply by 3, and thus our 11,42 becomes 33, and 126. but this time our search radius increases to (128-x+128, 128-z+128). Thus we can see that when we exit the neither it searches a much bigger area looking for a portal.
Its important to note that this searching begins at x,z and that it searches in a growing sphere like pattern, where ie (x+1, z+1), (1-x,1-z), x+2,z+2, 2-x,2-z, ect.
As you may or may not have noticed I didn't include anything about the Y cord, and this is because in both cases of entering and exiting the neither the Y-cord is irrelevant, and pretty much ignored.
A perfect link of a portal is when the x,z of both entry points of the exits in both the neither and overworld after calculations are preformed. This is often the goal with most standard portals because it will allow other portals that may need to sway some to not throw off other portals.
While possible right now, but not without using some very tricky redstone and glitches, it is possible to enter a portal into the neither, having that portal extinguish itself as you travel through from the overworld to the neither. The neither portal will remain lit, while the overworld is put out, entering this portal again from the neither can be a means to travel a quick 256 block jump to another portal in the overworld that is within its search range.
It's refreshing to know that the portals don't link as I had originally thought... and that the divisor was 3 instead of 8... now maybe I'll have a little better luck with my nether portal transport system. LOL
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I was annoyed with the gate in the nether. When you exited it, you were always facing the edge of the portal. So I took it down, reorientated the direction, and jumped through. To my dismay it now directed traffic to the bedrock portal, so I tried again. This time the surface. After some experimenting, I found that I have a nether portal that links to two gates. Go through on the left side, and it takes you into the mines, go in on the right side, pop out on the surface. Kinda fun...
Guess it adds a bit more colour that just red.
The 128 search only exists when coming into the neither, when coming out it actually searches up to 256 blocks for a portal, not counting y in either direction.
Whenever I make portals, i start with where I want them in the overworld, and I make sure to write down the cords of the two entry blocks before I enter. Next after securing my landing site in the neither my goal is to see 'how close' it acutally is to a perfect link. You can do this by taking the overworld cords that you wrote down and divide them by 3. A perfect match is when both the x,z cords from your oveworld, divided by 3 are equal to the neither portal cords. If its not real close and permitted i can make it closer I take the portal down in the neither and rebuild it as close as possible to a perfect match.
Since we know that cords are divided by 3, we can see that we can have a portal every 4 blocks. As well we know that the y cord does NOT matter. Thus with just alittle work one could setup a portal in thier strip mines below thier base, which leads to the neither, walk a block or two in the neither and exit another portal which links directly to thier base. Its like a quick elevator. Furthermore and if calculated correctly its possible to have a portal lead to two different portals depending one which side of the portal you entered, which is what the OP accidentally stumped across.
The neither is the fastest way to get around in the overworld and IMHO many fail to take advantage of this. A properly setup neither hub can make traveling anywhere in your world, safe and fast.
That's what I figured, I just never had it happen. I thought each portal had one tethered to it. The chances of this randomly occurring must be pretty rare.
Portals don't 'link' to each other as many believe, instead it takes the players entry cords coming in or out of the neither, their ,x,z cords. If we are entering the neither these cords are 'floored', and then divided by 3, thus if our cords in the overworld are 33,126. The game floors these ( 33, 126 ), this is because in reality, our x,z are not true integers but instead floats and thus are true x,z could be something like 33.4 and 126.3 respectively. Flooring these gives us 33 and 126. Next because we are entering the neither we need to divide by 3 This gives us 11, and 42, and thus the game actually begins looking at 11,42 for a neither portal, it will search upto ( 64-x+64, 64-z+64) where x is 11, and z is 42. If it does not find one, the game starts again at 11,42 and will try to make one, many times the area is blocked with other blocks, lava, and what not and thus the game keeps searching expanding the sphere till it finds a spot it can create one, if it still doesn't find one, long distance portals in the neither may end up being used.
In coming out of the neither it reverses the calculation where it divides by 3, instead we multiply by 3, and thus our 11,42 becomes 33, and 126. but this time our search radius increases to (128-x+128, 128-z+128). Thus we can see that when we exit the neither it searches a much bigger area looking for a portal.
Its important to note that this searching begins at x,z and that it searches in a growing sphere like pattern, where ie (x+1, z+1), (1-x,1-z), x+2,z+2, 2-x,2-z, ect.
As you may or may not have noticed I didn't include anything about the Y cord, and this is because in both cases of entering and exiting the neither the Y-cord is irrelevant, and pretty much ignored.
A perfect link of a portal is when the x,z of both entry points of the exits in both the neither and overworld after calculations are preformed. This is often the goal with most standard portals because it will allow other portals that may need to sway some to not throw off other portals.
While possible right now, but not without using some very tricky redstone and glitches, it is possible to enter a portal into the neither, having that portal extinguish itself as you travel through from the overworld to the neither. The neither portal will remain lit, while the overworld is put out, entering this portal again from the neither can be a means to travel a quick 256 block jump to another portal in the overworld that is within its search range.