Spelljammer d20
- Thread starter Wikidogre
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Wikidogre
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ok, either no one has any info, or i need to reword the question.
ok, i am making new ships for spelljammer d20; shadows of the spider moon. i amhaving problems calculating HP's for each size class, per what material it is made out of. was just looking for any ideas....thnx
peace
ok, i am making new ships for spelljammer d20; shadows of the spider moon. i amhaving problems calculating HP's for each size class, per what material it is made out of. was just looking for any ideas....thnx
peace
I haven't read the Polyhedron issue in question, but given the way that D20 works I suggest one of the following.
1) Linear interoplation. If your new ship size is between two of the published ones, split the difference between the two and assign your ship that HP value. For example, if ship 1 is size 100 and 12 HP, ship 2 is size 1000 and 24 hp, and your ship is size 500 it should have 18HP.
2) Linear extrapolation. if your ship is slightly larger or smaller than the largest or smallest ship, just multiply the hp by the size difference. For example, your ship is size 1200, it would have 24 HP x 1.2 (1200/1000) or 29 HP.
3) Exponential extrapolation. If your ship is significantly larger or smaller than the example ships, multiply the HP by 4 for each size class larger. For example, ship 2 is size 1000 (Large) and your ship is size 10,000 (Huge), your ship would have 96 HP.
Materials. I'm not sure what materials are offered, but at a guess I'd add +3 to +5 HP per rank of stronger (or -3 to -5 for weaker) materials used. For example, wooden hulls are the standard, so an Iron hull would be +5 HP and an Adimantium hull would be +20HP.
A WAG. If I had more details, I'd provide better answers.
1) Linear interoplation. If your new ship size is between two of the published ones, split the difference between the two and assign your ship that HP value. For example, if ship 1 is size 100 and 12 HP, ship 2 is size 1000 and 24 hp, and your ship is size 500 it should have 18HP.
2) Linear extrapolation. if your ship is slightly larger or smaller than the largest or smallest ship, just multiply the hp by the size difference. For example, your ship is size 1200, it would have 24 HP x 1.2 (1200/1000) or 29 HP.
3) Exponential extrapolation. If your ship is significantly larger or smaller than the example ships, multiply the HP by 4 for each size class larger. For example, ship 2 is size 1000 (Large) and your ship is size 10,000 (Huge), your ship would have 96 HP.
Materials. I'm not sure what materials are offered, but at a guess I'd add +3 to +5 HP per rank of stronger (or -3 to -5 for weaker) materials used. For example, wooden hulls are the standard, so an Iron hull would be +5 HP and an Adimantium hull would be +20HP.
A WAG. If I had more details, I'd provide better answers.
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If you haven´t done so already, I suggest you try the WotC Spelljammer boards - they are frequented by a number of really competent people, who might be able to help you.
http://boards.wizards.com/community-bin/ultimatebb.cgi?ubb=forum&f=216
http://boards.wizards.com/community-bin/ultimatebb.cgi?ubb=forum&f=216
Blacksad
Explorer
You can find ship (and other vehicles) construction rules for D&D in dragon 289 (IIRC), the rules for ship in spelljammer are based on this, and I think that instead of providing full hit points for each section of a ship they just provided the needed damage to sink the ship (destroy a 10x10 feet section).
OK, it's a bit silly to sink a ship in space, but you can try to reproduce the existing ships with this method with fairly good results.
OK, it's a bit silly to sink a ship in space, but you can try to reproduce the existing ships with this method with fairly good results.
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