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Old 10-20-2021, 07:40 PM   #11
Farmer
 
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Join Date: Nov 2004
Location: Sydney, Australia
Default Re: Water Jet damage

Quote:
Originally Posted by Rupert View Post
That's by using steam to displace the air, thus removing oxygen from the fire. A steam jet won't do that, and if this can do direct damage to a fire being, so should quite a few other things that currently don't. Note that Steam Jet does 1d-1 damage per point to everything that would normally take damage from a burning attack, which is nearly as much as from a Flame Jet, and even the 1-point level is doing more than a normal fire does (seeing as the jet isn't hitting the whole body). We're talking 'escaped from a high-pressure steam boiler' steam here, not 'you put your hand over the spout of your kettle' steam, the sort that is invisible until it mixes and cools at the end of the jet, and which cuts through objects and people like a cutting jet.

If it wasn't magical, and thus following such rules as 'it's made from water, so it hurts things of fire' rather than physics as we understand it, it should be doing cutting damage and be invisible.
Yes, it's displacing air (not oxygen) and putting water vapour in its place, which contains less accessible oxygen by volume. Much the same as if you punch into a fire create with steam - it reduces the possible combustion at that point which reasonably (noting this is magic...) could hurt the creature.

And, yes, high pressure steam is invisible and cuts you because the water pressure is doing the damage not the heat (becuse it takes time for heat to transfer and there's not enough steam (and therefore heat) to do a lot burning damage in a short period of time.

A larger jet, though (and it's magic, so it can exist), is putting a lot of heat onto an area. I've provided first aid to a couple of pretty decent steam burns over the years. Volume of steam in a cloud of a "magical" jet certain carries a lot of heat and can transfer that onto skin.

Given it's magic, and it's a game mechanic designed for some level of balance, it's reasonable. If you want to make it piercing or impaling or cutting or whatever, there's a basis for that, too.
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