This question involves calculations, coordinates and movement in the imagined 3-dimensional space of the game world.

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2
votes
1answer
84 views

How do I determine the argument of periapsis in GURPS Space? [closed]

I am currently in the process of writing a program that generates a GURPS Space star system according to the RAW. For the final output format I intended to make plots of the orbits, thus this question ...
12
votes
4answers
550 views

What counts as ground for Tenser's Floating Disk?

What counts as ground for this ritual, if you have a 5x5 piece of stone/paper/metal/wood under the disk, and that is moved up, say 10 feet, would the disk phase through that stone, or hover 1 foot ...
9
votes
1answer
161 views

How does Phasing interact with the Z-axis?

The glossary entry for Phasing is rather sparse, and doesn't seem to address any specific issues that could arise while phasing. Phasing: While a creature is phasing, it ignores difficult terrain, ...
4
votes
2answers
546 views

Aerial combat in 3.5e

I have a player who is using a homebrew flying race to add to his heal/buff cleric's survivability. He's promising not to use it too much to his advantage, especially because none of us have any ...
6
votes
2answers
232 views

How much vertical space do a rider and mount occupy together?

How much vertical space do a rider and mount occupy together?
4
votes
5answers
496 views

Do creatures occupy cubic space, or are larger creatures still one square tall?

Does a large creature need to squeeze to fit into at 5' tall passageway?
4
votes
1answer
376 views

Is there a high limit on how high the Tenser's Floating Disk will fly?

Is there a high limit on how high the disk will fly? If i'm on it and use a move action to go "UP" how far will it go before it refuses to go any farther? I did not see any mention of high limits ...
11
votes
3answers
297 views

Does blade barrier have to be anchored to the ground?

If I cast blade barrier, does it have to be anchored to the ground? Or can I have it float anywhere I want that it could occupy, such as cast it above me as a sort of roof of blades?
3
votes
3answers
189 views

Do tall creatures have to duck elevated obstacles?

Are there rules concerning the interaction between a creature and elevated obstacles? Example: Say, you have the following. Tall Goliath (7'8") Short Gnome (3'4") Short Kenku (5'0") Short Human ...