lower max firestacks to 10, refactor flammable

[QuietlyWhisper]

About the PR

• might fix Admin fire smite is now too deadly #23963
• Lowers max firestacks from 20 > 10
• Uncaps the damage limit of 5 fire stacks
• Lowers heat damage from fire stacks to be the same as before at most
  • Less fire stacks will do less damage however, as the fire stacks go down.

Why / Balance

#27159 (comment)

Changelog

🆑 Whisper

• tweak: Fire stack limit reduced from 20 to 10. Fire transfers will be less effective, and fires will not last as long.

[deltanedas]

i think mass scaling is better to fix liltenhead ops

[deltanedas]

also damage was capped at 5 firestacks, any more than that just makes it last longer

[QuietlyWhisper]

also damage was capped at 5 firestacks, any more than that just makes it last longer

I see that now, and that's a little weird

[deltanedas]

still dont think this is needed:

• if you are aware you are on fire you can stop drop and roll
• if you are dead someone can splash water on you
• if someone wants to burn you to a crisp a single 20 stack wont do it with most armour so theyll still have to go for seconds anyway

[QuietlyWhisper]

I'm going to uncap damage since the cap is an arbitrary number and reduce heat damage to keep the old scaling of 5 being the max damage, 15/s

And then from there we can see what needs to be increased

[QuietlyWhisper]

Ok so at the time of writing this comment, after these changes:

• a max stack fire burns out at 1471 heat, which would mean armored people do not burn to ash but unarmored are nearly ashed. (This assumes you dont make any attempts to put out the fire)
  • Antagonists could ash people still by simply adding more fuel at least once while the fire fades
  • You'd just have to remove someone's armor if you wanted to do that I suppose, you wouldnt burn a body in a firesuit after all.
• In theory, as long as you're in a safe place (no overheated atmos) and have taken no other sources of heat damage, you shouldn't burn to ash if you're a regular crewmember.
• It should also be easy to keep up the max fire damage with fuel since the limit is a lot lower.
• you no longer burn to death if you drop and roll at max stacks, so saving yourself is possible, but you will still crit in most cases.
• people with 50% heat resistance will get out with about 60 heat damage if they drop and roll as soon as possible

Another balance value I didn't touch is the ash threshhold, which is still 1500

[github-actions]

This pull request has conflicts, please resolve those before we can evaluate the pull request.