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Grassblock
This page describes a feature from vanilla Minecraft.

To view the corresponding page on the Minecraft Wiki, click here.

Grassblock


This mod adds six new pressure plates. They are made by putting two Gondor Rock, Rohan Rock, Mordor Rock, Sarlluin, Sarncaran, or Chalk side-by-side into a regular crafting table.

A pressure plate can be used to craft detector rails, to smelt items, or can be used as a redstone component.

A pressure plate can be used to detect entities on top of it (players, mobs, items, NPCs, etc.).

PlacementEdit

[1]Pressure plate placement and behavior.[2]Pressure plates on fences in Beta 1.8.

To place a pressure plate, use the "Use Item/Place Block" control (right-click, by default) while aiming at the face of a block adjacent to the destination space.

A pressure plate can be attached to:
  • the top of any full solid opaque block (stone, dirt, blocks of gold, faction bricks, etc.), including full-block mechanism components (command blocks, dispensers, droppers, note blocks and redstone lamps)
  • The top of a hopper, fence, nether brick fence, an upside-down slab or an upside down stair.
A pressure plate cannot be attached to the side or bottom of any block, but attempting to make such an attachment may cause the plate to attach to the top of a block under the destination space. For example, if a fence is on the ground, attempting to attach a plate to the side of the fence will cause the plate to be attached to the top of the ground next to the fence instead.

ActivationEdit

A pressure plate activates when an entity is on top of it (specifically, when the entity's collision mask intersects the bottom quarter-block of the pressure plate's space, which may include entities flying close to the ground) and deactivates 5 redstone ticks (0.5 seconds, barring lag) after no entities are on top of it, with a minimum activation time of 10 redstone ticks (1.0 seconds, barring lag).
A stone pressure plate is activated only by mobs and NPCs (including players), while a wooden pressure plate is activated by all entities (including players, mobs, NPCs, items, arrows, experience orbs, fishing bobs, etc.).
A minecart traveling on rails will activate a pressure plate next to a diagonal track but not one next to a straight track (stone pressure plates are activated only if the minecart contains a mob or player).

BehaviorEdit

While active, a pressure plate:
  • powers adjacent redstone dust, and adjacent redstone comparators or redstone repeaters facing away from the plate, to power level 15
  • strongly powers any full solid opaque block beneath it to power level 15
  • activates adjacent mechanism components, including above or below, such as pistons, redstone lamps, etc.

Water and lava will flow around a pressure plate without affecting it.

A pressure plate is not solid (it is not a barrier to entity movement). A block under a pressure plate can provide a solid barrier underneath it (for mobs to walk across, items to fall on, etc.), but when a pressure plate is placed on a block with a small collision mask, such as a fence or nether brick fence, it is possible for entities to move through the pressure plate while still activating it (walking through it horizontally, or falling through it vertically). Thus, a pressure plate on a fence can be used to detect entities without stopping them (more compactly than a tripwire circuit).

Pressure plates are 0.0625 blocks high (116 of a block) when inactive and 0.03125 blocks high (132 of a block) when active, but because they are not solid they do not affect the position of entities "on top" of them (for example, a player on top of a pressure plate is actually standing on the block beneath it).

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