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59 lines
2.6 KiB
Plaintext
59 lines
2.6 KiB
Plaintext
Example: * Transmutations
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Location: Relations in groups
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RecipeLocation: Magic (Breaking the Laws of Physics)
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Index: Machine that transmutes objects
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Description: A machine that turns objects into other, similar objects.
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For: Z-Machine
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Suppose we want to have a machine in our game that can transmute one item into another, similar object with different properties: a bag of jelly beans into a bag of jewels, for instance. Thus each item will be associated with some number of equivalents -- the other objects it can turn into. This is a handy use for group relations:
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{*}"Transmutations"
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Workshop is a room.
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Transmutation relates things to each other in groups. The verb to become means the transmutation relation.
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Definition: a thing is transmutable if it becomes more than one thing. [* It always becomes itself.]
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A thing can be valuable. Something valuable called a bag of jewels is carried by the player. It becomes the bag of gunpowder and the bag of jelly beans.
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A thing can be dangerous. The bag of gunpowder is a dangerous thing.
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The bag of jelly beans is an edible thing.
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The machine is fixed in place in the workshop.
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The can't insert into what's not a container rule does nothing when inserting something into the machine.
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Check inserting something which is not transmutable into the machine:
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instead say "You can't transmute that."
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To decide which thing is new form of (obj - edible thing): decide on a random valuable thing which becomes obj.
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To decide which thing is new form of (obj - dangerous thing): decide on a random edible thing which becomes obj.
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To decide which thing is new form of (obj - valuable thing): decide on a random dangerous thing which becomes obj.
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Carry out inserting something into the machine:
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now the noun is nowhere;
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now the player carries the new form of the noun;
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rule succeeds.
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Report inserting something edible into the machine:
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say "The machine clicks, whirrs, and spits out [a new form of the noun]. You're rich!";
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rule succeeds.
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Report inserting something dangerous into the machine:
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say "The machine clicks, whirrs, and in a shower of flavor crystals, spits out [a new form of the noun].";
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rule succeeds.
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Report inserting something valuable into the machine:
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say "The machine clicks, whirrs, and with a violent roar, spits out [a new form of the noun].";
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rule succeeds.
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Test me with "i / put jewels in machine / i / put gunpowder in machine / i / put beans in machine".
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In this example we have only defined a single set of transmutable objects, but we could easily expand to include other groups.
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(Thanks to Jesse McGrew for proposing this example.)
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