Now, we know that it's possible to fiddle with redstone circuit items (see: the sunlight-activated "pressure" plate), and we know it's possible to determine whether water passes through a block or not (see: the underwater torches mod).
Is it possible to make a block that allows liquids to pass through it as long as it's powered, and otherwise block the flow when unpowered?
I'm not sure if it's possible, since anything that allows water to pass through it right now gets eliminated in the process (ie just regular torches and air). But what about making a block that allows/blocks the space ABOVE it instead? That way, the powered/unpowered block itself can never have liquids move through it (and thus won't be removed), but it would create a floodgate block above it when it's set to block water?
Perhaps it would create Plank blocks above itself whenever it's powered, and be made like this:
It would look like a cobblestone block with a wood block top. And then when it's powered, it creates plank blocks above itself. And then, perhaps, to avoid issues, placing a non-plank block above it causes it to be turned back into an item, and destroying the plank block OR itself will cause it to be turned back into an item...
Although, perhaps it shouldn't make plank blocks if we want it to block lava, haha. Still, maybe someone knows if this might be possible. It would open up a lot of possibilities. :biggrin.gif: Just thought I'd ask.
As for the sphere, why don't you just use one of the perfect sphere templates (the largest) except then "cut" the middle part of it out, and fill that in with straight lines? It'll make for more of a curved-edge square, of course, with a flat square roof at the very top, but it would be alright.
Keep in mind that the height of the map is only 128; if you have a 77 radius sphere, it would extend far above the maximum limits of block-placing even if you happened to start at the very bottom bedrock level.
If you want it "squashed" instead, you'll have some problems since the last dozen or so blocks will likely be roofed over rather quickly. Thus, your best bet is to have the first six or ten levels to just be circles, followed by a hemisphere roof. Again, with a 77 radius, you're going to have to squash it considerably.
The dark gray is half-steps, the light gray is double half-steps, and the pink is where you'll put your blocks with fenceposts on them, to avoid falling off. Then just continue the pattern, 90 degrees tilted. This can be used to go up any height you like. If you don't want a railing, just replace the uppermost pink square with halfstep, the lowermost square with halfstep, and the two pink squares adjacent to the double halfsteps also into double halfsteps (leaving two pink squares completely out, the ones that would otherwise be covering the black "hole" in the center).
This might get a better response in the Support forum. Also, it would be nice to describe in more detail what happens. Does it just freeze? Or is there an error message?
Double doors work a little strangely with redstone; for starters, each door needs to be powered separately, and one needs to have the power inverted (it's closed when the power is on, open otherwise).
use the redstone to power the block to the left/right of the double doors (to ensure they're both powered separately), and then make sure to invert one of them.
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TNT isn't resettable; a floodgate block would be. That's why I suggest it for mod authors to consider as their next big project :wink.gif:
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Is it possible to make a block that allows liquids to pass through it as long as it's powered, and otherwise block the flow when unpowered?
I'm not sure if it's possible, since anything that allows water to pass through it right now gets eliminated in the process (ie just regular torches and air). But what about making a block that allows/blocks the space ABOVE it instead? That way, the powered/unpowered block itself can never have liquids move through it (and thus won't be removed), but it would create a floodgate block above it when it's set to block water?
Perhaps it would create Plank blocks above itself whenever it's powered, and be made like this:
It would look like a cobblestone block with a wood block top. And then when it's powered, it creates plank blocks above itself. And then, perhaps, to avoid issues, placing a non-plank block above it causes it to be turned back into an item, and destroying the plank block OR itself will cause it to be turned back into an item...
Although, perhaps it shouldn't make plank blocks if we want it to block lava, haha. Still, maybe someone knows if this might be possible. It would open up a lot of possibilities. :biggrin.gif: Just thought I'd ask.
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As for the sphere, why don't you just use one of the perfect sphere templates (the largest) except then "cut" the middle part of it out, and fill that in with straight lines? It'll make for more of a curved-edge square, of course, with a flat square roof at the very top, but it would be alright.
Keep in mind that the height of the map is only 128; if you have a 77 radius sphere, it would extend far above the maximum limits of block-placing even if you happened to start at the very bottom bedrock level.
If you want it "squashed" instead, you'll have some problems since the last dozen or so blocks will likely be roofed over rather quickly. Thus, your best bet is to have the first six or ten levels to just be circles, followed by a hemisphere roof. Again, with a 77 radius, you're going to have to squash it considerably.
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Here's a pic:
The dark gray is half-steps, the light gray is double half-steps, and the pink is where you'll put your blocks with fenceposts on them, to avoid falling off. Then just continue the pattern, 90 degrees tilted. This can be used to go up any height you like. If you don't want a railing, just replace the uppermost pink square with halfstep, the lowermost square with halfstep, and the two pink squares adjacent to the double halfsteps also into double halfsteps (leaving two pink squares completely out, the ones that would otherwise be covering the black "hole" in the center).
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Texture packs are always going to be allowed, since they're just reskins..
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Stalactite
As the mites go up, the tites come down. :3
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Use half a sphere.
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use the redstone to power the block to the left/right of the double doors (to ensure they're both powered separately), and then make sure to invert one of them.