"Lock and Key: Variable": Harlowe (v2.0)#

Information

This example is affected by history changes in the story. Undoing or re-doing back to a passage containing this recipe has the potential to change its saved values.

Summary#

"Lock and Key: Variable" demonstrates how to create the effect of picking up a key and unlocking a door. In this example, the key is a variable ($key) and is initially set to the value "false" in the Start passage.

When the link "Pick up the key" is clicked, $key is changed to the value "true" and the door link changes from its initial response of "Locked Door" to a link to the passage Exit.

Example#

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Twee Code#

:: StoryTitle
Lock and Key: Variable in Harlowe

:: Start
(set: $key to false)

Rooms:
[[Front Room]]
[[Back Room]]

:: Front Room
(if: $key is true)[
  [[Exit]]
]
(else:)[
  *Locked Door*
]

Rooms:
[[Back Room]]

:: Back Room
(if: $key is false)[
  Items:
  (link: "Pick up key")[(set: $key to true)You have a key.]
]
(else:)[
  There is nothing here.
]

Rooms:
[[Front Room]]

:: Exit
You found the key and went through the door!