Usually a redstone signal activates a device. What if there was a detector that instead sent off a redstone signal when you activated a device by hand? Meet the activity detector.
The Activity Detector
The activity detector would look a bit like a black unlit torch. You could place it on floors and walls. It would be utterly unaffected by redstone signals.
The activity detector would glow pinkish white and send off a redstone signal, as if it were a redstone torch, when a device directly adjacent to it is activated by hand.
What do I mean by device?
I mean anything in the game that can be activated with a click from the player's hand. If right or left clicking it does anything (other than breaking it) it's a device.
So a door is a device. And so is a chest. And so is a crafting table. And so is a furnace.
And what do I mean by activated by hand?
I mean either the player has just changed its state by clicking it (causing a brief signal like a button), or the player is currently accessing it (causing a continuous signal until they stop), or the player made the device do something on its own (causing a continuous signal until it finishes).
For example, clicking open a door or hitting a note block caused a quick change. That would make an adjacent activity detector briefly flash on then turn off.
Accessing a chest or crafting table or furnace is an ongoing action. An adjacent activity detector would remain on until you stop accessing the chest/crafting table/furnace.
A furnace can smelt things on its own, even after you stop using it though. So a furnace in the process of smelting something would make an adjacent activity detector remain on until it's done smelting.
The only devices that would not affect the activity detector are switches and redstone components. So buttons, levers, pressure plates cannot activate the activity detector. Neither does adjusting a repeater.
What would this be used for?
This detector would be very useful in all kinds of helpful automated systems, as well as in traps.
Usually a redstone signal activates a device. What if there was a detector that instead sent off a redstone signal when you activated a device by hand? Meet the activity detector.
The Activity Detector
The activity detector would look a bit like a black unlit torch. You could place it on floors and walls. It would be utterly unaffected by redstone signals.
The activity detector would glow pinkish white and send off a redstone signal, as if it were a redstone torch, when a device directly adjacent to it is activated by hand.
What do I mean by device?
I mean anything in the game that can be activated with a click from the player's hand. If right or left clicking it does anything (other than breaking it) it's a device.
So a door is a device. And so is a chest. And so is a crafting table. And so is a furnace.
And what do I mean by activated by hand?
I mean either the player has just changed its state by clicking it (causing a brief signal like a button), or the player is currently accessing it (causing a continuous signal until they stop), or the player made the device do something on its own (causing a continuous signal until it finishes).
For example, clicking open a door or hitting a note block caused a quick change. That would make an adjacent activity detector briefly flash on then turn off.
Accessing a chest or crafting table or furnace is an ongoing action. An adjacent activity detector would remain on until you stop accessing the chest/crafting table/furnace.
A furnace can smelt things on its own, even after you stop using it though. So a furnace in the process of smelting something would make an adjacent activity detector remain on until it's done smelting.
The only devices that would not affect the activity detector are switches and redstone components. So buttons, levers, pressure plates cannot activate the activity detector. Neither does adjusting a repeater.
What would this be used for?
This detector would be very useful in all kinds of helpful automated systems, as well as in traps.
Okay good idea but... detecting a furnace, put a flower in front of the furnace. Make sure the furnace is the only light source. When the furnace stops, the flower pops out and activates pressure plate.
Okay good idea but... detecting a furnace, put a flower in front of the furnace. Make sure the furnace is the only light source. When the furnace stops, the flower pops out and activates pressure plate.
That's pretty clever, but it's kind of inconvenient to need to keep replanting a flower. Plus complete darkness in your base is just asking for a creeper to appear.
That's pretty clever, but it's kind of inconvenient to need to keep replanting a flower. Plus complete darkness in your base is just asking for a creeper to appear.
It's not perfect but until your idea is implemented, this appears to be the only way, plus you could always think of great complicated ideas to limit creepers. Pressure plate activates piston that is connected to a stone piece. When the stone piece is moved, lava flows out. I am actually thinking of doing this. You would face a problem where the piston restricts lava as well. You would have to think of a way around this.
OMG I GOT IT! A huge pit hallway leading to the furnace. Pistons shoot out to keep you from falling. You activate the hallway by pressing a lever on the opposite end. You place your flower, activate your furnace and pull the lever. Any spawned creepers have a one way ticket to bedrock. Simply pull lever again to get your furnace supplies.
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The Activity Detector
The activity detector would look a bit like a black unlit torch. You could place it on floors and walls. It would be utterly unaffected by redstone signals.
The activity detector would glow pinkish white and send off a redstone signal, as if it were a redstone torch, when a device directly adjacent to it is activated by hand.
What do I mean by device?
I mean anything in the game that can be activated with a click from the player's hand. If right or left clicking it does anything (other than breaking it) it's a device.
So a door is a device. And so is a chest. And so is a crafting table. And so is a furnace.
And what do I mean by activated by hand?
I mean either the player has just changed its state by clicking it (causing a brief signal like a button), or the player is currently accessing it (causing a continuous signal until they stop), or the player made the device do something on its own (causing a continuous signal until it finishes).
For example, clicking open a door or hitting a note block caused a quick change. That would make an adjacent activity detector briefly flash on then turn off.
Accessing a chest or crafting table or furnace is an ongoing action. An adjacent activity detector would remain on until you stop accessing the chest/crafting table/furnace.
A furnace can smelt things on its own, even after you stop using it though. So a furnace in the process of smelting something would make an adjacent activity detector remain on until it's done smelting.
The only devices that would not affect the activity detector are switches and redstone components. So buttons, levers, pressure plates cannot activate the activity detector. Neither does adjusting a repeater.
What would this be used for?
This detector would be very useful in all kinds of helpful automated systems, as well as in traps.
Okay good idea but... detecting a furnace, put a flower in front of the furnace. Make sure the furnace is the only light source. When the furnace stops, the flower pops out and activates pressure plate.
That's pretty clever, but it's kind of inconvenient to need to keep replanting a flower. Plus complete darkness in your base is just asking for a creeper to appear.
It's not perfect but until your idea is implemented, this appears to be the only way, plus you could always think of great complicated ideas to limit creepers. Pressure plate activates piston that is connected to a stone piece. When the stone piece is moved, lava flows out. I am actually thinking of doing this. You would face a problem where the piston restricts lava as well. You would have to think of a way around this.