I want to know how to make a command block output a Redstone signal when it is successful.
Minecraft – How to make a command block output a Redstone signal when it is successful
minecraft-commandsminecraft-java-editionminecraft-redstone
Related Solutions
When using coordinates, you need to specify a radius so that it knows how far to search from that specific point. Try changing your command to:
/testfor @a[x=-611,y=80,z=714,r=1]
You can also compact it down into:
/testfor @a[-611,80,714,1]
I believe that the reason is that without a radius the selector makes no sense, so it is simply ignored and tests for @a.
Place a command block with the /testfor @p[whatever] command.
Then, a redstone comparator facing outwards from the command block.
From there, place your redstone or any redstone contraption that needs the input.
Note: If the comparator's signal isn't strong enough (1 block worth of power), place a Redstone Repeater after the comparator and any output should now have 15 strength.
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Best Answer
You'll need to use a redstone comparator and probably a repeater as well.
A comparator will signal in the same fashion as it does for other non-inventory non-selector blocks; when the command block activates, it will be detectable by the comparator and will only produce a signal strength of redstone equal to the number of successful activations. Most commands only activate 1 time, so a repeater would be useful here.