v0.31:Grate

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A grate is a Template:L-type item. It is used as a construction material for wall grates and floor grates. Grates can be constructed from Template:L or Template:L (with the Template:L Template:L at a Template:L), wood (with the Template:L labor in a Template:L), Template:Ls (with the Template:L labor at a Template:L), or Template:L (with the Template:L labor at a Template:L).

Wall Grate

A wall grate is basically a Template:L, but with 2 differences:

• It is a Template:L instead of a Template:L. It doesn't overwrite the tile below it, and it can be smashed by building destroyers.
• It can be linked to a Template:L or Template:L. Once linked, it works like a linked Template:L which doesn't stop fluids, Template:Ls or Template:L when closed.

Wall grates set the boundary for the room being resized, but they do not provide support for the doors construction. Unlike a constructed wall, the grate has some quality level and can be decorated.

Floor Grate

A floor grate blocks Template:L and item movement like a Template:L, but it lets Template:L, Template:L, and ranged attacks through like an open tile. It doesn't block line of sight. It can be linked. Triggered, it opens like a hatch, but with a 100-tick delay.

Floor grates must be attached Template:L (i.e. not diagonally) to firm ground or some solid construction (a wall, floor, etc), not (just) other grates.

A floor grate does NOT count as solid construction. It will not support any buildings or constructions. However, you can designate a construction to be built orthogonally to it with no other supports. This will cause the construction to cave-in immediately after being completed. This can be useful for controlled cave-ins.

You can not have a Template:L on floor grates.

Tiles below a floor grate do count as inside. They will not stop light.

Floor grates do no block Template:L or taking water directly from a Template:L, though they do prevent Template:Ls from working if between the well and the water.

Floor Grate seem to dismantle when a heavy object, like a boulder, plumets on to it, say, from a waterfall, but stuff like fish falling from a waterfall just collect on it. It seems there is a point in which the grate dismantles, more testing is needed.

Bars vs. Grates

Vertical and horizontal Template:L seem to be functionally identical. The difference between grates and bars is that bars can only be made of metal (and other materials that come in Template:Ls) but they can be constructed by any dwarf from Template:L and do not require an intermediate production step.

Notes

• If you wish to remove a floor piece that is linked to a grate, make sure that the dwarf that carries out the job does not stand on the grate, or remove all grates first. The grate will not be supported, and fall (with your uncareful dwarf on it), and you will experience the famous equation: "It's not the fall that kills you, it's the sudden stop at the end."

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