Minecraft/Duping

Information from The State of Sarkhan Official Records

YourCraft: Minecraft, Your Way

Minecraft has always been a game about creativity and experimentation. The ability to shape the world to your liking is one of its defining features. So why should duping items, a mechanic that has been part of the game since its early days, be considered controversial?

It's Your Game, Play It Your Way

The idea of portraying duping as a "right vs. wrong" issue is divisive and counterproductive. Minecraft is a sandbox game, designed to be explored and manipulated. If you enjoy duping items, do it. If you prefer to play without exploiting game mechanics, that's equally valid.

The bottom line is, it's your game. Play it how you want, with the rules you find comfortable. Whether you choose to dupe TNT, build massive structures, or simply explore the world, the game is yours to command.

Don't Let Others Dictate Your Gameplay

If someone tries to tell you that you're playing Minecraft "wrong" because you're duping items, politely remind them that it's your game, not theirs. Their opinion on how you should play is irrelevant.

Moreover, it's worth pointing out that duping isn't inherently harmful. It's a mechanic that has been part of Minecraft since its early days. If you find it enjoyable or beneficial, there's no reason to feel guilty or ashamed.

A Call for Game Balance

While duping itself is not inherently wrong, it's important to consider the potential impact on the game's balance. If duping becomes too widespread, it could lead to unintended consequences.

One potential solution is to re-evaluate the mechanics of certain items. For example, if duping sugarcane becomes too prevalent, perhaps the game's designers should consider adjusting the rate at which sugarcane grows.

Ultimately, the decision of whether to allow or restrict duping should be based on the overall health of the game, not on moral judgments or personal opinions.

Let's Keep Minecraft Fun

Minecraft is a game meant to be enjoyed. Let's focus on what makes the game great: creativity, exploration, and the freedom to play it our way. Whether you're a master duplicator or a hardcore purist who abhors any form of manipulation, let's embrace the diversity that makes Minecraft such a special game.

TNT Duper

TNT Duping: A "Bug" or "Feature"? Let's Break It Down

TNT Duping in Minecraft, an infamous mechanic, has existed in various forms throughout the game’s history. The key to understanding this phenomenon is the update order in the game’s code and how it interacts with redstone mechanics and block updates. But rather than being a straightforward bug, many believe it could be considered a “feature” that was, in some ways, working as intended. Let’s take a closer look at how TNT Dupers function and why it’s far more than just a simple exploit.

The TNT Dupe Mechanism: What’s Happening Under the Hood?

The TNT Duping process is based on a clever manipulation of Minecraft’s block update sequence. The typical setup for a TNT duper machine involves a detector rail, a minecart, coral, and a piston.

Here's a simplified breakdown of how it works:

  1. Powering TNT with a Detector Rail:
    • When the minecart with the detector rail moves over a powered rail or the powered block, it sends a redstone signal. The TNT block gets powered by this signal, and it should ideally ignite. However, due to Minecraft's specific mechanics, the update order isn't instantaneous.
  2. The Update Order:
    • Minecraft updates blocks in a set order when a piston activates. The piston, when pushed, lists all the blocks it needs to move. In this case, the order matters. The game first attempts to update blocks like coral or blocks adjacent to the TNT before updating the TNT itself.
  3. Coral Activation:
    • Coral has a quirk in that when it’s pushed, it updates adjacent blocks, such as the TNT. Because the TNT is powered, it ignites after being updated by the coral block, even though the TNT itself hasn’t yet moved.
  4. TNT Duplication:
    • The piston then pushes the TNT, moving it one block forward. But because the TNT was already powered and ignited from the previous update by the coral, the game doesn’t properly register that the TNT has been “activated” before moving it. As a result, the game places another TNT block in the process, duplicating it.

Why This Could Be Considered "Working as Intended"

Now, here’s where things get spicy. The TNT duper bug is rooted in the game’s update order, which is essentially a result of the block update prioritization—and this prioritization has been in place for a long time. If you dig into how Minecraft's block mechanics work, you'll notice that the game is designed to handle complex block interactions like pistons, redstone, and entity updates in specific orders. It wasn’t necessarily a design flaw; the TNT duper phenomenon is an unintended consequence of these mechanics.

In a way, it could be seen as “working as intended” because:

  • Minecraft is designed with complex systems that allow for blocks and entities to interact in specific sequences, including pistons pushing blocks, detecting redstone signals, and triggering block updates. TNT duper exploits this chain reaction, and while it wasn't explicitly intended by the developers, it does not outright break the rules of block interactions. It simply uses the mechanics to produce an unintended but functional outcome.
  • The game does not directly block TNT from being duplicated—it’s simply a result of how the game processes updates. This unintended feature exists because the game hasn’t patched or designed TNT to behave differently in this specific interaction, considering the TNT duplication isn’t immediately obvious as a “bug.”

Why It’s a Problem in Modern Minecraft

While some players enjoy using TNT dupers for efficiency, such as building huge TNT cannons or mass-generating TNT for explosive mining, this mechanic is a balancing issue in more competitive or survival-focused servers. TNT duper can quickly break the intended gameplay loop, especially in survival mode or multiplayer servers where resource scarcity is key.

Despite its presence in the game for years, Mojang continues to patch TNT duping in various forms. Each time a duper is discovered, it is often quickly removed or altered to prevent abuse, because it’s hard to maintain game balance when players can generate infinite TNT with little effort.

Conclusion: Is It a Bug or a Feature?

The TNT duping bug might not have been designed on purpose, but given how Minecraft's update system works, it might as well be considered a "feature." It's a feature of how the game handles updates, and while it’s a bug that might frustrate developers trying to patch exploits, the core mechanic behind TNT duping—block updates, redstone power, and entity mechanics—wasn’t inherently flawed in itself.

In the end, it’s not really an issue with how TNT is meant to function. Rather, it's a combination of game mechanics that accidentally lead to duplication. And while it might technically be a bug, in the grand scheme of Minecraft’s complex interactions, it’s more like an “emergent feature”—a gameplay mechanic that arises from the natural outcome of the game’s rules.

Carpet Duping

Yes, you’re absolutely right! The carpet duper works in a similar way to the TNT duper, and it's indeed rooted in the same block update quirks and mechanics that Minecraft’s world generation and redstone systems rely on. Just like TNT duping, the carpet duper exploits a block update sequence and interactions between coral fans and carpet blocks.

Let’s break this down in a similar manner:

How the Carpet Dupe Works:

  1. Stacking Carpet on Coral Fans:
    • The carpet duper involves placing multiple layers of carpet on top of coral fans, which are active (meaning they are not in water, as coral fans require water to be inactive). Coral fans are unique because when they are pushed by a piston, they update the surrounding blocks, including the carpet blocks stacked on top of them.
  2. The Role of the Coral Fan:
    • When the piston pushes the coral fan, it updates its adjacent blocks, including the carpet on top. The carpet blocks, which are usually supposed to stay in place, get duplicated when the block update from the coral fan interacts with them. The block update tells the game that the carpet is “moved” in a way, triggering the duplication.
  3. Duplication Process:
    • Once the coral fan is pushed, it causes the surrounding blocks (the carpet) to “shift” due to the block update, even though the carpet itself wasn’t directly moved by the piston. This shift causes the game to think the carpet is being replaced or duplicated (since blocks like carpets aren’t traditionally supposed to duplicate with this mechanic). In essence, the game registers this as a change, and another carpet is created in the process, leading to the duplication.

Why It’s the Same Block Update Quirk as TNT Duping:

Just like with TNT duping, the core principle of the carpet duper comes down to the update sequence of Minecraft’s blocks. Both TNT and carpets (as well as other entities) are subject to the game's block update system, where a piston can cause neighboring blocks to update in unexpected ways if they’re in the right position.

  • Coral fans trigger block updates when they’re pushed, and this update affects blocks around them.
  • When blocks like carpet are involved, the game may not register the change properly, resulting in a duplication of the block in question.

The same mechanic where Minecraft processes updates in a specific sequence plays a role here. The carpet is updated indirectly due to its relationship with the coral fan, which is pushed by the piston. The game’s logic doesn’t handle the update properly, leading to the carpet being duplicated in the process.

Why This Could Be Considered a "Feature":

Much like TNT duping, the carpet duper isn’t necessarily an outright bug, but rather an emergent feature of Minecraft’s block update handling and interactions between different mechanics. While Mojang didn’t intend for this duplication to happen, it operates based on how Minecraft updates blocks in sequence, and this specific interaction wasn’t patched or explicitly controlled by the game’s mechanics—therefore, it operates as if it's part of the game.

In this sense, you could consider it “working as intended” because it follows the rules of Minecraft’s block update sequence, even though it wasn't the intended behavior for carpets or coral fans to duplicate.

Conclusion:

Just like TNT duping, the carpet duper relies on the same principles of block updates and entity interactions in Minecraft. When the coral fan is pushed, it triggers an update of the surrounding blocks, which happens to include carpet blocks stacked on top. The result? A duplication of carpets due to the way Minecraft processes updates.

So, in both cases, we’re looking at a quirk in the game's update system that leads to duplication—a consequence of the way Minecraft handles interactions, rather than a clear-cut bug or oversight. It might be unintended, but it’s certainly “working as intended” within the rules of Minecraft’s mechanics, just like the TNT duping!