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07102019, 03:02 PM  #1 
Join Date: Aug 2015
Location: Everywhere and Nowhere

Diffuse body of swarm with scatter enhancement, and AOE attacks (Mainly Explosion))
Ok. So i have session tomorrow. and i thought from memory I know how this worked. But i unfortunaly remembered it wrong.
So I need quick help. Long story short, i designed an encounter with a golem, as it gives the 2 big strong characters someone to bash. but i also gave it the ability to sorta morph and change its body shape/type of it and its equipment etc. i also gave it the ability to just, disassemble into the TickTack sized bits and move and reform to continue to guard its charge etc. That gives the wizard and cleric time to cast AOE spells into the goo. Giving them something to do in the fight. Turns out, i hadnt looked at the rules in a very long time, and i miss remembered them. so. I need help trying to understand what how in the world damage works with the diffuse swarm. its incapable of interaction with the environment directly. Both HORROR, and POWERS states that "While scattered, only AOE, Cone, and Explosion attacks can harm you, and only in proportion with the surface they cover. EG. an attack with 5% of your area does 5% damage" and thats all. no example. nada. How do i calculate that? and how does that calculate with explosion damage? like say for example, the swarm takes up a nice round number thats easy to calculate and easy to math. Say 10 Hexes. and an area create fire takes up 3 hexes. dealing 1d61 damage to it. for simplicities sake, well say that it only takes damage once, after that it moves out of the aoe. By my way of figure, thats 3/10, or 30% area caught in the fire. saying that each of the 3 hexes took 1d1, that's a total of 3d3 burning, say you roll average, got 7Pts of burning damage. multiply that by 30%, thats 2 pts of injury. Is the above correct? And also, The wizard is almost certainly going to throw an explosive foreball. looking at an 3d6, or 6d6, or maybe even a 9d6 Explosive fireball spell. For simplicities sake, well say it was a 6d6 ExFi. How on earth are you to calculate that? are you supossed to calculate the distance that the damage could possibly be larger than zero to figure out possible Area? assuming monster has DR 2 for being made of Oricalcum metal, Damage Needs to be at least 3 to cause harm. for 6d6, thats Ground zero, max36 ,min6 , Avg21 for 6d6, thats 1 yard range, max12,min2, Avg6.67 for 6d6, thats 2 yard range, max6,min1, Avg3.08 for 6d6, thats 3 yard range, max4,min1, Avg1.89 for 6d6, thats 4 yard range, max3,min1, Avg1.27 for 6d6, thats 5 yard range, max2,min1, Avg.96 so, it has an effective range of 4 yard area.hiting 61 total hexes? before being unable to deal damage anylonger. in the actual real problem at hand, the golem can take up to move 6, meaning the edges can move up to 6 yards away taking up an area of 91 hexes in total. the above example day droped into the dead center would hit 61/91 hexes or 67% of the area. Would you roll damage for each and every one of those hexes, tally it up, and then multiply it by 67%? or what? I dont know if i am interpreting this correctly or not? Help Please? 
07102019, 03:19 PM  #2 
Join Date: Jun 2005

Re: Diffuse body of swarm with scatter enhancement, and AOE attacks (Mainly Explosion
Calculating area is pretty simple, actually.
The Body of Swarm is spread out over a radius of R. That's an area of πR^2. The attack has a radius of r. That's an area of πr^2. The ratio of areas is πr^2/πR^2, which simplifies to r^2/R^2, or if you prefer, to (r/R)^2. So, for example, if the swarm has radius 100 yards, and the explosion has radius 20 yards, the fraction of damage is (20/100)^2 = 0.2^2 = 0.04.
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07102019, 03:27 PM  #3  
Join Date: Aug 2015
Location: Everywhere and Nowhere

Re: Diffuse body of swarm with scatter enhancement, and AOE attacks (Mainly Explosion
Quote:
but what about implementing it? how does that work? do you have to roll damage for each and every one of those hexes? and then multiply damage by the resulting Fraction? the area isnt so much the problem to calculate. theres the 3r^23r+1 equation for calculating number of hexes in a given radius etc. My biggest issue is how i am supposed to apply the fractionary area and therefore fractionary "normal Damage as the books put it" Last edited by Jaware; 07102019 at 03:30 PM. Reason: clarity of communication 

07102019, 03:34 PM  #4 
Join Date: Nov 2008
Location: Yukon, OK

Re: Diffuse body of swarm with scatter enhancement, and AOE attacks (Mainly Explosion
I'd roll for the center and then either average the rest or drop dice based on distance. Depends on what seems most satisfying in play.
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07102019, 09:12 PM  #5  
Join Date: Aug 2015
Location: Everywhere and Nowhere

Re: Diffuse body of swarm with scatter enhancement, and AOE attacks (Mainly Explosion
Quote:
anyway, thats not the part im having trouble with. its how the "an attack that covey 5% of your area dons 5% of its damage" part that im not comprehending. Im not sure how to apply that to the output of damage from whatever source. the only question i had about explostion was in calculation of area and how would one do that since damage changes based on distance from epicenter. 

07102019, 10:17 PM  #6 
Join Date: Aug 2018

Re: Diffuse body of swarm with scatter enhancement, and AOE attacks (Mainly Explosion
I think the problem you're talking about is how the damage per hex isn't consistent, so I guess what you'd need to do is calculate it in "rings". Count the number of hexes which take a certain amount of damage from the blast radius which the swarm is occupying, then calculate what % of the swarm's overall mass those hexes are, and that's what you multiply the damage by.
You then do that for each ring as you spread out and reduce the damage, I guess? I don't know if there's really any simple formula for it. 
Tags 
aoe, damage, diffuse, explosion, swarm 
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