I'm back! It looks like the author of the original post and I have some things we do not agree on.
While callumkhang want's a trap that reduce HP with the least space, I am talking about the spawn rate as well - if you make a device which spawns mobs in the dark the space it takes you to spawn them is taken into consideration IMO.
But now that I think of it that means this challenge has 2 variables, and that is not very scientific of me, so I think will go with spawners only.
some more notes regarding other posts:
*The machine needs to be automatic, that is it, I don't care if it requires non renewable resources, but because callumkhang cares, then you most make it renewable.
*no mods, 100% vanilla.
also something I forgot:
*No exploiting of glitches.
The challenge is quite simple - make a mob farm that reduces the mobs HP to 1 heart or 1/2 of a heart so you could kill then barehanded, and make it as small as possible. An efficient mob farm is a farm that has the highest mobs damaged per second for space rate. e.g. if you'r trap make 10 mobs to reach 1/2 a heart per second and takes 80 blocks it has an efficiency of 1/8.
A little heads up: fall damage is the most common method today, but it takes much more space then ideas discussed in the original post. Some ideas are: Suffocation with water, suffocation with blocks pushed by piston, suffocation by running a mob in a minecart to a 1 block high space, burn by fire, burn by lava. I won't be able to take part in my own challenge until later tomorrow, so have fun in the mean time :smile.gif:
EDIT:
*Mob spawner only to keep it with less variables.
*The machine needs to be automatic, that is it, I don't care if it requires non renewable resources, but because callumkhang cares, then you most make it renewable.
You should really put this as a challenge - tiniest mob grinder.
In order to light a mob on fire it needs to touch lava. let's assume you can make it so the mob touches the lava to only get damaged from the lava once, so the mob gets "only" 5 damage from the lava and starts to burn. damage from burning is half a heart per second so you need to let the mob burn for 4.5 seconds or 45 ticks before dropping him into the water. if it will burn for 50 ticks, it will die, there for you have a window of 45 to 49 ticks to drop him into the water.
Getting direct damage from fire is 1 heart + 0.5 hearts of burning damage = 1.5 hearts. so yo can let the mob stay in direct contact with the fire for 6 seconds or 60 ticks, and then move it away from the fire and let it burn for 0.5 more seconds for the last 0.5 heart damage and then put the fire off. That is a total of 65 ticks with 4 more ticks to maneuver at the end of each stage so you got 65 - 73 ticks.
hook up to the device any number of repeaters between 23 maxed out repeaters and 3/4 repeater, to 24 maxed out repeater and a 3/4 repeater. What Live__AI did was hooking it to 25 maxed repeaters, but because of his clock the delay was decreased from 100 to 96.
O.k a mob losses half a heart of suffocation demege every half of a second, zombies and skeletons and spiders have 10 hearts, that means that in order to suffocate them you need 9.5 seconds. A tick is a 1/10 of a second so you need 95 ticks + 2 ticks for the pistons to extend = 97 ticks in order to suffocate the mobs to half a heart.
EDIT: pistons some times take 3 ticks to extend, but this should not worry you because as long as you don't reach 100 ticks after the repeaters extended the mobs will still have half a heart. so you got 1 extra tick to maneuver with.
Hi guys, just though of a little idea that has probably been done already a thousand times. It is a door that only opens if a block is placed in a certain place, so basically the signal from the triggering mechanism needs to travel through a repeater placed next to a block that will deliver the signal onward. The can be then hidden from view. Although you can also just hide the triggering mechanism so...yea...
One thing this is good for is open one known door with the opening mechanism alone, but with the block it opens a secret piston door to the real important place. Just a though...
Will like to join.
Level:somewhat advanced, I am latest build implemented elements of piston memory, but the idea was taken from someone else so...yea..
Ver:1.8 pre-release
Seed: Yuriland
cords(x,y,z): -21,66,251
I found a cave near the spawn area in this seed that contains a spider dungeon, which I raided, and made my home :smile.gif:
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While callumkhang want's a trap that reduce HP with the least space, I am talking about the spawn rate as well - if you make a device which spawns mobs in the dark the space it takes you to spawn them is taken into consideration IMO.
But now that I think of it that means this challenge has 2 variables, and that is not very scientific of me, so I think will go with spawners only.
some more notes regarding other posts:
*The machine needs to be automatic, that is it, I don't care if it requires non renewable resources, but because callumkhang cares, then you most make it renewable.
*no mods, 100% vanilla.
also something I forgot:
*No exploiting of glitches.
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The challenge is quite simple - make a mob farm that reduces the mobs HP to 1 heart or 1/2 of a heart so you could kill then barehanded, and make it as small as possible. An efficient mob farm is a farm that has the highest mobs damaged per second for space rate. e.g. if you'r trap make 10 mobs to reach 1/2 a heart per second and takes 80 blocks it has an efficiency of 1/8.
A little heads up: fall damage is the most common method today, but it takes much more space then ideas discussed in the original post. Some ideas are: Suffocation with water, suffocation with blocks pushed by piston, suffocation by running a mob in a minecart to a 1 block high space, burn by fire, burn by lava. I won't be able to take part in my own challenge until later tomorrow, so have fun in the mean time :smile.gif:
EDIT:
*Mob spawner only to keep it with less variables.
*The machine needs to be automatic, that is it, I don't care if it requires non renewable resources, but because callumkhang cares, then you most make it renewable.
*no mods, 100% vanilla.
*No exploiting of glitches.
0
In order to light a mob on fire it needs to touch lava. let's assume you can make it so the mob touches the lava to only get damaged from the lava once, so the mob gets "only" 5 damage from the lava and starts to burn. damage from burning is half a heart per second so you need to let the mob burn for 4.5 seconds or 45 ticks before dropping him into the water. if it will burn for 50 ticks, it will die, there for you have a window of 45 to 49 ticks to drop him into the water.
Getting direct damage from fire is 1 heart + 0.5 hearts of burning damage = 1.5 hearts. so yo can let the mob stay in direct contact with the fire for 6 seconds or 60 ticks, and then move it away from the fire and let it burn for 0.5 more seconds for the last 0.5 heart damage and then put the fire off. That is a total of 65 ticks with 4 more ticks to maneuver at the end of each stage so you got 65 - 73 ticks.
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EDIT: pistons some times take 3 ticks to extend, but this should not worry you because as long as you don't reach 100 ticks after the repeaters extended the mobs will still have half a heart. so you got 1 extra tick to maneuver with.
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One thing this is good for is open one known door with the opening mechanism alone, but with the block it opens a secret piston door to the real important place. Just a though...
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Level:somewhat advanced, I am latest build implemented elements of piston memory, but the idea was taken from someone else so...yea..
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I am a sad man now...
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Seed: Yuriland
cords(x,y,z): -21,66,251
I found a cave near the spawn area in this seed that contains a spider dungeon, which I raided, and made my home :smile.gif: