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§8.9. Moving the player
The player is a thing, too, and can also be moved, which has the effect of instantaneous transportation, without the need for a suitable map connection to the new location. For instance, these are equivalent:
move the player to the Bodleian Library;
now the player is in the Bodleian Library;
This will ordinarily result in a room description of the Bodleian Library being printed up, but that might not always be desirable. For instance:
Instead of waiting in the Schola Maleficorum:
say "A bored demon catches your eye (they really do have very inquisitive fingers) and throws you back out into the Antechamber.";
move the player to the Antechamber, without printing a room description.
Thus tacking on the option "without printing a room description", remembering to add the comma, omits the description which would otherwise be produced. A compromise is to use the option "printing an abbreviated room description": this gives a full description if the player has never been here before, but only a brief one if it is a familiar scene.
The player's point of view can also be moved by shifting to another character. Suppose the story features two people, Alice and Bob, and the player at the keyboard is giving commands to Alice, and seeing everything from her point of view. The phrase:
now the player is Bob
switches the perspective so that now Bob is the one controlled by the human player, and it's Bob's point of view which counts. The human being at the keyboard may feel a sense of having jumped abruptly from place to place, but in fact neither Alice nor Bob has moved.
A change of player can sometimes cause confusing things to happen, if it takes place as part of a successful action. Suppose there's an action called "possessing", which enables the player to possess somebody else's body; and suppose the player types POSSESS ADELE. The action succeeds, so that the player moves into the mind of Adele. But that means that at the end of the action, the player is no longer the actor - that is, no longer the person who began the action; and consequently, Inform won't use the report rulebook to say what has just happened. It's a strange business, moving into another body.
|Start of Chapter 8: Change|
|Back to §8.8. Moving backdrops|
|Onward to §8.10. Removing things from play|
Terror of the Sierra Madre
Suppose we have a game where we want the player to control two different characters, swapping bodies from one turn to the next. First, the setting, and the two people who will alternately play:
The window throws on the floor a bright square of malevolent sunlight[otherwise]The stalls for horses run down one side of the room, but the house has long stood empty. A square window without shutters looks out over the ranch, away toward the Sierras[end if]."
Teresa is a woman in the Hay-Strewn Corridor. "Teresa stands opposite you[if Teresa carries something], her fingers wrapped tightly around [a list of things carried by Teresa][end if]." Teresa carries a bulb of garlic and a cross.
If we tried the text above in Inform, we would find ourselves in the Hay-Strewn Corridor and confronted by both Teresa and Maleska. If "player" is not set to any named person, Inform creates a bland person called "yourself" to represent the player. To avoid this, we set "player" to the person we want to begin as. The player character is normally privately-named, so we'll need to make sure "Maleska" still means what it should.
Now the Corridor contains just two people, and we arrive on the scene as Maleska, with only Teresa facing us.
At the end of every turn we will use the 'now the player is...' phrase. (This looks as if it simply changes the value of "player": which it does, but it also carries out a complicated operation behind the scenes to effect the switch.)
Our two characters already see the Corridor differently, but let's differentiate them further:
In this small example, strength is not used for anything, except that we will display it on the status line:
That last rule doesn't quite do what we might have expected. When we print "[player]", we find that Inform usually prints "yourself". This is because Inform says "you" to mean Teresa when talking to the player-being-Teresa, and likewise for Maleska. We want to override that in this particular story, because the rapid switches of personality are otherwise hard to follow. So: