Wednesday, May 6, 2020

Doors, Shores, and Parallel Zones: a guide to the boundaries between worlds

So you're jumping around between parallel dimensions.  But what's the crossover like?

Here's a quick taxonomy, sorted in increasing order of smoothness.

 

Doors 

(Also known as gates, portals, wormholes, cosmic glory holes, or rifts. )

An enclosed frame holding a flat region of warped space which is connected to a paired surface elsewhere in the cosmos. Any particle which passes through the frame is transported to the other world. (Some doors connect to an intermediary demiplane, and so resemble a tunnel.)

These are the most common and easiest-to-understand type of planar boundary, and most cross-dimensional spells work by opening these doors.

The defining characteristic of this kind of boundary is that local space is entirely normal close to the boundary and then experiences a discontinuity.

d6 doors found in the Plates of Flavor:

  1. A small pond of cream found in the Plate of Sweets. Jump in and you'll pop out of a similar pond in the Plate of Meats. Unfortunately, the pond has a tendency to move around when no one is paying attention to it.
  2. An elephant-sized peach pit lays in the deserts of the Plate of Seed. Small tunnels dot its surface, just large enough to crawl through. Most of the tunnels are shelter to vermin, but one opens out into a giant half-eaten peach in the valley of unripened fruit. 
  3. The city of Everything Bagel, found at the center of the Great Buffet of the outer plates, is just riddled with doors. Nobody actually lives there except for the Lady of Propane. All the other people bustling about were just unfortunate enough to have a random portal open up connected to their refrigerator or shower drain or something like that.
  4. If you dig deep into the crust of the pastry plains, sometimes you'll find a pocket of filling connecting to some other world. A custard pocket connecting to the plain of sweets. A pocket of garbage connecting to the prime material. Etc.
  5. Dionysus has a big inter-dimensional portal that he just uses to dump half-eaten chicken wings.  No clue where the other end opens up.
  6. Dump enough fish sauce into any whirlpool and it will briefly transform into a portal to the shallow sea.



Hyperbolic Shores

A transition into another world with noticeable spatial distortions, but no discontinuities.

For example, you're in the Boiling Oil Ocean, cruising around on your turnip barge. You see an island made of meat off in the distance, giant billowing fingers dressing its shores. After cruising around a bit, the island doesn't seem too large. But when you land and go to explore its interior, you find that it's infinitely large and in fact contains the entire Elemental Plate of Meat.

Meanwhile, from the Meat side of things, you approach a lake of oil. You can easily walk around the entire thing in a matter of hours, but can't see across to the shore on the other side. The lake, is in fact, the entirety of the infinite Plate of Oil.

Another common kind of shore are the ones that form in large book collections. As we all know, a dense enough concentration of knowledge can cause spacial distortions, making libraries and bookstores bigger on the inside or even connecting them to L-space. Because such distortions are noticeable, but locally continuous, they count as Shores.






Parallel Zones

Characterized by a transition to another world despite the lack of absolutely any sort of spatial distortion.

You know, that crazy fairy kind of stuff where you're walking in the woods down a path you've travelled many times before, but it's unusually spooky this time and then somehow you find yourself trapped in an endless twilight forest. And it turns out it's because the vice-archduchess of the fey or whomever wanted to look at your hat was lined with beaver pelt from a particular magical beaver is seeking its revenge. Okay, we're back. It's fine.

Tuesday, May 5, 2020

Mathpost: Coordinates on a tesselating hexagonal world.

Turn back now, if ye be looking for some narrative content. This be nothin' but a big wad of barely polished geometry.


Basic idea is that you live on a giant flat plane that loops. (As in this story) Go far enough in any direction, and you'll end up back where you started. Navigational systems evolve to meet the needs of the people using them. What kind of system of coordinates would be useful for navigating on a looping hex?


Your browser does not support the HTML5 canvas tag.





Rectangular Coords

X: Y:



Hexline Offset Coords

A: B: C:






 Unit length is equal to the inner radius of the hex.

(X,Y) coordinates are the standard Cartesian kind.

(A,B,C) coordinates are "Hexline Offsets". Basically, choose 2 opposite edges of the hex perimeter, and draw parallel lines first through the origin and then through your point. The absolute value of coordinate is the ratio of (the distance between the point and the line through the origin) and (the distance between the center and the perimeter line)








Further Explanation 


More detailed unpolished explanation below.

Neither the images nor text were optimized, so everything is a bit too large.

Thursday, April 9, 2020

GLOG: Spells Bound to Minor Magic Items: Replace your spellbooks with something the barbarian can also use.

Here's an enjoyable aesthetic:




In the opening to the Harry Potter series, we see Dumbledore, the most powerful wizard alive, use a a little trinket to do his dark deeds. Instead of just willing the street to be dark, he comes prepared with a nifty little piece of artificery.

The first Harry Potter is full of this kind of device-based magic. The Deluminator, the invisibility cloak, the remembral, the philosopher's stone, everything in the quidditch trunk. Does Harry even use a wand to cast a spell during the film?

As the movie series goes on, magic shifts towards being more about laser gun fights. Pew pew. But in Deathly Hallows, the snitch and deluminator make a suprise comeback, and additional hidden abilities are retconned revealed.

I like this vibe. Let's adapt it to tabletop rpg magical items. 


Each item below has two abilities -- a "cantrip" and a "spell".

The cantrip is a magical effect which can be used freely and repeatedly by anyone with even the slightest bit of magical experience, or even by the magically ignorant if they fiddle around with it for a few hours.

The spell is a more powerful effect, maybe taken from your standard wizard spell list, and can be used by anyone magically powerful enough to actually cast spells. Using the item's spell will deplete its charge, preventing either the cantrip or spell effect from being used until the next dawn.

I'm using GLOG-style magic, where spells are levelless and limited by the caster's pool of "Magic Dice". (See here or here for an explanation, and here for the full ruleset I'm using.) Anyone with Magic Dice can spend them to activate the device's spell effect, using the same system as if they had that spell in their head instead of in their hands.

If you adapt this concept to a system with leveled spells, then allow the device's spell-effect to be activated by expending a spell slot of the appropriate level.



On to the list! 

Thursday, March 26, 2020

Squirrels.

This is a list of very good squirrels. I hope you enjoy.


1. Eurasian Red Squirrel

by hedera.baltica

by hedera.baltica

 He is coming.




Sunday, November 3, 2019

Skeleton Post 2019

It's a bestiary with over 300 skeleton variants. 42 pages long.

Too late for Halloween, and just in time to be late for Day of the Dead. Click here for the download link. I'll be back again next year with even more skeletons.




Again, here's the download link (PDF)




Wednesday, October 9, 2019

Magical School Castle Map Generator

This is a Random Castle Generator based on this post at Renaissance Woodsman.

A preview is shown below. Right click on the map and select "View Image" or "Save Image As", Depending on the browser. Clicking on the image will download it, but only in some browsers.

Check this box to toggle the Emoji Icons. Check this box to toggle the Trump-suit.
Your browser does not support the HTML5 canvas tag.
Click here to expand a static image of the above. If you can't save the above, this might work.
x

Saturday, September 28, 2019

Wizard Pets! Eight Delightful Magically Engineered Creatures to Help Make Your Wizarding Tower feel like A Wizarding Home.

The Whole Menagerie. Wizard Shown for Scale.
Each of the following critters is made by some mad wizard to help with domestic tasks. Each exhibits some helpful behavior comparable to a cantrip. And each is capable of casting some sort of spell if a spellcaster touches it and focuses on feeding it some of their magical energy. (For GLOG, this would be Magic Dice; for a typical system, you would expend a spell-slot.) Think of them kinda like scrolls, but more huggable.