How to show unexplored map nodes at the start?

Question

For example purposes, the player has a home, where they should be aware of the existence of all rooms on the map, without having to go there to reveal them.

Other locations may require exploring, but this one should be visible.
Some of the rooms have {once} text in them, so setting them to already visited might interfere with that.

Comments

What system are you using?

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The question is tagged with Quest.

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Perhaps we could subcategory the different compilers in the authoring section, have a special box for it or something. This seems to happen frequently enough.

Answer 1

The following code will "visit" all the rooms connected to a starting room, drawing them into the map. You would typically call:

VisitRoom(game.pov.parent)

in your start script, after adding this function to your game:

  <function name="VisitRoom" parameters="room">
    if (not GetBoolean(room, "genvisited")) {
      room.genvisited = true
      Grid_CalculateMapCoordinates (room, game.pov)
      Grid_DrawRoom (room, false, game.pov)
      foreach (exit, AllExits()) {
        if (exit.parent = room) {
          VisitRoom (exit.to)
        }
      }
    }
  </function>

Note that this does not changed the normal "visited" status for the rooms.

Answer 2

since the built-in 'visited' Boolean Attribute is already built to work (reveal map rooms) with the grid mapping, I'd instead make your own separate Boolean Attribute, that you check for, in whether to run a script(s) or not, instead of using the 'firsttime' Script~Function or nor the text processor's 'once' command, as they're tied to the 'visited' Boolean Attribute too, as well.

visited: leave as is, using it to determine what rooms you can see in~on the mapping grid

visited2: your newly created Attribute, for checking for what scripts to run.

(just a sample example, so the code design choice I used, is poor for actual implementation in a big game)

<object name="room">
</object>

<object name="room2">
  <attr name="visited" type="boolean">true</attr>
  <attr name="visited2" type="boolean">false</attr>
</object>

<object name="player">
  <parent type="object">room</parent>
  <attr name="changedparent" type="script">
    if (this.parent.name = "room2" and this.parent.visited2 = false) {
      // script(s) 1
      this.parent.visited2 = true
    } else if (this.parent.name = "room2" and this.parent.visited2 = true) {
      // script(s) 2
    }
  </attr>
</object>