Editing Cycle 15/Ruleset (section)

== Board ==
Each player has a location (syn. "current space"), which is a space. For a player to "move to" a new space, other than their current location, is for their location to become the new space. Initially, or if a player would otherwise lack a location or have indeterminate location, a player's location becomes the initial space (as elsewhere defined by the rules, or otherwise the oldest-created existing space) if possible.

=== Spaces ===
A space is an entity. Each space has an identifier, which is an integer unique among spaces. An attempt to create a space with an invalid or duplicated identifier fails, rules to the contrary notwithstanding. The space with identifier N is known as "Space N".

A space with identifier 0 always exists, and is created immediately if it does not. This space is the initial space.

Each space has a type or category as its type. The possible types are described by other rules. Initially, or if a space would otherwise lack a type or have indeterminate type, a space's type becomes Blank.

A line of spaces exists between space X and space Y if X is less than Y and if every space from space X to space Y-1, inclusive, precedes a space with an identifier one greater than its own. A loop exists from space X to space Y if a line exists from space X to space Y and space X succeeds space Y.

==== Blank ====
"Blank" is a type of space. Blank spaces have no effect that occurs when a player lands on or passes through them.

==== Crystal ====
"Crystal" is a type of space. When a player lands on or passes through a crystal space, they gain 1 crystal.

==== Boulder Trap ====
“Boulder Trap” is a type of space. Each Boulder Trap space has a list of spaces called its Boulder Path, and a space called its Safe Haven. When a player lands on a Boulder Trap space, a boulder rolls through all of the spaces on its Boulder Path, causing all players on that space and any space in its Boulder Path to flee, moving them to its Safe Haven. When a player passes through a Boulder Trap space, nothing happens.

Boulder Trap spaces cannot have their type changed through the use of items. If the use of an item would cause a Boulder Trap to change its type, then the use of that item is cancelled without effect.

==== Unique Types ====
A unique space type is a space type defined as such by the rules. If 2 or more spaces have the same unique space type, then all but the last one become type "Blank" (where the last ones is the one with the greatest identifier).

==== Garbage Pile ====
"Garbage Pile" is a type of space. When a player lands on a Garbage Pile space, a player may optionally select a random item defined by the rule "Garbage" to grant themself.

==== Crystal Orb ====
"Crystal Orb" is a type of space. When a player lands on a crystal orb space, they gain 1 crystal.

==== Stop Sign ====
Stop sign is a type of space. When a player selects such a space as part of movement they cannot, and do not have to, select any further spaces.

==== Oil Spill ====
Oil Spill is a type of space. When a player selects such a space as part of movement, the subsequent selection, if there should be one, must be randomly chosen from among the space's successors.

==== Thin Ice ====
Thin Ice is a type of space. When a player lands on such a space, if more than one player have that space as their location, all such players have their location set to Space 0.

==== Shard Pile ====
Shard Pile is a type of space. When a player lands on such a space they gain 1d6 shards.

==== Crystal Forge ====
Crystal Forge is a type of space. When a player lands on such a space they may choose to transform 20 of their shards into 1 crystal.

==== Casino ====
Casino is a type of space. When a player lands on such a space they may choose to gamble by rolling a d2. If the result is 1, they lose all their shards. If the result is 2, the amount of shards they own is doubled.

If it is party time you must be drunk to gamble.

==== Teleporter ====
A teleporter is a type of space. When a player lands on a teleporter space, they instantaneously swap locations with a randomly selected player. (Having your location swapped with another player is not "moving", as defined by the rules, and hence none of the intermediate squares between you and the player you are swapping with have any effect when it happens.) When a player passes through a teleporter space, nothing happens.

==== Geyser ====
"Geyser" is a type of space.

If a player lands on a Geyser space, they must immediately move backwards 3 spaces. This does not count as movement for the purposes of passing through or landing on spaces. If a space where this is required to happen would have multiple predecessors, a random one is selected to move onto. If a player selects a Geyser space as part of their movement action, except if that space is the final space selected, they glide further. They may (optionally) select 1 additional or 1 fewer space during that movement action.

==== Dance Pad ====
"Dance Pad" is a type of space. When a player lands on a Dance pad space, they may choose to start a party.

==== Disco Ball ====
"Disco Ball" is a type of space. When a player lands on a Disco Ball space during party time, they may randomly select a Blank space to change it's type to Dance Pad.

==== Geode ====
"Geode" is a type of space. When a player lands on a Geode space, grant them a random item from the list below:

* Crystal
* Crustal
* Shard
* Resonant Quartz
* Telekinetic Amethyst
* Hell Diamond
* Refractive Topaz

==== Crystal Beam ====
"Crystal Beam" is a type of space. When a player lands on a Crystal Beam space, they may select 1 space to target with the beam.

When a space is targeted with the beam, any players on this space lose 1 Crustal each. If they have no Crustals, they lose 1 Crystal. They lose nothing if neither condition applies. If the targeted space is of type Garbage Pile or Dance Pad, it is changed to Blank. If the targeted space is of type Hazard, change it's pseudo-type to Blank.

=== Connections Between Spaces ===
Each space has a set of successors, each of which is a space. If such a set would ever contain non-spaces, or if one of its elements ceases to exist, the set is modified by removing any offending elements. Each space initially has no successors (that is, its set of successors is empty).

A space is said to "precede" each of its successors. A space "succeeds" (syn. "follows") each space that precedes it.

=== Categories ===
Types of spaces can be grouped together into categories. Spaces whose types are categories have a "pseudo-type" which may be assigned to a specific element of the group (or "Blank"), or randomly by selecting a random (with the possibility of weighting, though uniformly distributed unless stated) type from within the category. When a player lands on a space with a category as its type, the space's current pseudo-type applies, then that player must make a random selection for its new pseudo-type.

Whilst a category contains no elements, a space of that category is always pseudo-type "Blank". In the case of an ambiguous pseudo-type, any player may generate a random pseudo-type for that space. If a player creates a space with a category as its type or modifies a space's type to be a category, they must as part of that action generate that space's pseudo-type randomly.

==== Treasure ====
"Treasure" is a category of spaces. It contains the following types:

* Crystal
* Crystal Orb
* Shard Pile
* Geode

==== Hazard ====
"Hazard" is a category of spaces. It contains the following types:

* Stop Sign
* Thin Ice
* Geyser

==== Utility ====
"Utility" is a category of spaces. It contains the following types:

* Crystal Forge
* Casino
* Crystal Beam