| Chapter 10: Scenes |

| 10.8. Multiple endings

Interactive fictions vary considerably in the extent to which the player is allowed to influence the story-line. Sometimes the appearance of making choices is wholly bogus, as only one possible line is given more than lip service. But in other works, the player can radically change the outcome, and whole rafts of plot differ between one person's experience and another's. Inform allows multiple endings to its scenes to make this kind of branching story-line easy to achieve.

Any scene can have up to 8 alternate endings, differentiated by name. These are created as and when conditions are set for them:

> Brief Encounter ends happily when ...
> Brief Encounter ends wisely but sadly when ...

"Ends happily" and "ends wisely but sadly" behave just like "ends". We can have rules "When Brief Encounter ends happily, ..." and so forth, in addition to rules "When Brief Encounter ends, ..." - if a rule doesn't specify any particular ending, it applies to all of them.

We can also link rules together from these branches, so

> Stranger's Acceptance begins when Brief Encounter ends happily.
> Stranger's Rejection begins when Brief Encounter ends wisely but sadly.

With this set-up and that of the previous section, there are now two possible paths through the story:

> (i) Train Stop - Brief Encounter - Stranger's Acceptance - Bittersweet Ending
> (ii) Train Stop - Brief Encounter - Stranger's Rejection - Bittersweet Ending

We might later need to know which of these paths has been taken, and to help with this Inform provides conditions like so:

> if Brief Encounter ended happily ...
> if Brief Encounter ended wisely but sadly ...

(For a scene which repeats, note that these conditions apply only to the most recent repetition: and that such conditions are always false if the scene is currently going on.)

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| Example Panache Replacing the score with a plot summary that records the events of the plot, scene by scene.

If we have a plot that branches and has multiple kinds of outcome, we might well want to assemble these into a plot summary in place of the more traditional score. One way to approach this is to build the scene information into a table, adding information when each scene ends. We begin with a bit of setup: "Panache" The player is in a room called Beneath Roxane's Balcony. Christian is a man in the Balcony. "Christian stands in a spot of moonlight and tries to avoid too obviously glancing at the shadows that conceal you." The description of Christian is "Like you, Christian loves Roxane. Unlike you, he is handsome enough to receive her favor in return. He is the beauty to your brain." Roxane is a woman in the Balcony. "Above you in the night is Roxane." Roxane can be wooed, skeptical, confused, or annoyed. Roxane is skeptical. The description of Roxane is "The brightest, the most radiant of women -- and in love with an utter fool." Empty Street is a room. "No one is about at this hour, all alone under a pale moon." Telling someone about something is speech. Asking someone about something is speech. Answering someone that something is speech. This next portion borrows from the Advanced Actions chapter to allow us to command Christian to do things: A persuasion rule for asking Christian to try speech: persuasion succeeds. Carry out Christian trying answering someone that something: now Roxane is wooed; say "'[noun], [the topic understood].'" Carry out Christian trying answering the player that something: say "Christian parrots your words back to you." instead. Carry out Christian trying telling a skeptical Roxane about something: change Roxane to confused; say "Christian turns to [the noun]. 'I must tell you about [the topic understood],' he says, and comes to a halt, looking at you for further direction. Perhaps you'd better give him exact lines to say. Surely he can't mess up an instruction like 'say hello to Roxane.'" instead. Carry out Christian trying asking a skeptical Roxane about something: change Roxane to confused; say "'So,' says Christian nervously to [the noun]. 'Did you know about [the topic understood]?' But Roxane merely seems puzzled." instead. Carry out Christian trying telling a confused Roxane about something: change Roxane to annoyed; say "Christian begins rambling on witlessly about [the topic understood]." instead. Carry out Christian trying asking a confused Roxane about something: change Roxane to annoyed; say "Christian puts another confused question about [the topic understood]." instead. And now we have enough material to begin writing the scenes: Courting Roxane is a scene. Courting Roxane begins when play begins. Courting Roxane ends in success when Roxane is wooed. Courting Roxane ends in failure when Roxane is annoyed. When Courting Roxane ends in success: record "Seduction by Proxy" in the Table of Events; say "Roxane, deeply moved by this sentiment, invites Christian up to her balcony. He scrambles up the ivy and disappears into her bedroom; the last thing you hear is a girlish giggle from above."; remove Roxane from play; remove Christian from play; move the player to Empty Street. When Courting Roxane ends in failure: record "Ruining Christian's Chances" in the Table of Events; say "Roxane sighs heavily and goes back into her room, slamming the door behind her. 'Thanks very much,' says Christian to you, striding off down the street."; remove Roxane from play; remove Christian from play; move the player to Empty Street. Sulky Ramble is a scene. Sulky Ramble begins when Courting Roxane ends in success. Sulky Ramble ends when the time since Sulky Ramble began is 2 minutes. When Sulky Ramble ends: record "Wandering the Streets, Sulking" in the Table of Events. Every turn during Sulky Ramble: say "You find yourself kicking fenceposts quite without thinking about it." Smug Ramble is a scene. Smug Ramble begins when Courting Roxane ends in failure. Smug Ramble ends when the time since Smug Ramble began is 2 minutes. When Smug Ramble ends: record "Wandering the Streets, Exultant" in the Table of Events; say "Of course, you will regret this soon enough." Every turn during Smug Ramble: say "You find yourself smiling fiercely at the moon." To record (occurrence - a string-of-text) in (target table - a table-name): choose a blank row in the target table; change the event entry to the occurrence. Table of Events event "A Duel of Insults" with 30 blank rows. The plot summary rule is listed instead of the announce the score rule in the carry out requesting the score rules. This is the plot summary rule: say "The Plot So Far: [paragraph break]"; let act number be 0; repeat through the table of Events begin; increase act number by 1; say " Act [act number]: [event entry][line break]"; end repeat. Test me with "christian, ask roxane about love / christian, say your breath smells like ripe taleggio to roxane / score / z / z / score".

134
| Example Pine 4 Pine: Adding a flashback scene that, instead of repeating endlessly, repeats only until the Princess has understood the point.

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