This trap uses explosions to kill a player without destroying any parts of the trap except for the explosives themselves. It is activated by a player walking over a piece of redstone ore (~50% chance of activation each time), and so is not so obvious when placed at large depths. A four-block space is used on each end of the redstone ore so that a player cannot activate the trap by punching the redstone ore without becoming trapped in its activation. The TNT in the auto loader is loaded at the height that it is (six blocks above the bottom of the tunnel) so the the TNT detonating blow it cannot cause it to ignite. Obsidian may be added to prevent the reloading pistons from continuing to push after all of the TNT has been used up, which would break the ignition part of the trap. The seemingly extra redstone is present to make sure the bottom row of ceiling pistons are forced to update when they are to extend or retract.
download world here: http://www.mediafire.com/?53jqj5145ua3h13
@BlackTopHatGuy Good suggestions, I may have to make a better version eventually haha. The original idea with the water coming from above was that any players not killed immediately by the TNT would soon after be killed by drowning, but the versions here both have air pockets if the player swims up, so I have to figure something out. Also, having the override involve pistons would give itself away to guesses... but I guess people who know to guess would tunnel around, hmm.
willietrom 4 weeks ago
3 suggestions:
1. why not make the water come from the side (wall) instead of the ceiling ( no water particles and less pistons required)
2. for safe walk trough piston change the redstone ore
3. cover the lava for no chance of accidental TNT activation.
other that that great idea for a secret trap!
BlackTopHatGuy 4 weeks ago