src/babysfirst/postMove.lua

   1 --
   2 -- This script is executed every time an Entity finishes walking onto a tile.
   3 --
   4 -- We are called from within Entity::postMove() in entity.cpp. There, we are
   5 -- passed some game data. We pass three variables to this script from the
   6 -- Entity object: x, y, and entity, which represents the Entity itself.
   7 --
   8 -- We also have a C function we can call, gotoRandomTile, which takes an Entity
   9 -- object as a parameter.
  10 --
  11
  12 -- Returns true if we are standing on the specified X,Y location.
  13 function on(X, Y)
  14         return x == X and y == Y
  15 end
  16
  17 -- Returns true if we are standing on any of the specified locations.
  18 function onAny(locations)
  19         for _,loc in ipairs(locations) do
  20                 if on(loc.x, loc.y) then
  21                         return true
  22                 end
  23         end
  24         return false
  25 end
  26
  27 local redPortalLocations = {
  28         {x = 11, y = 4},
  29         {x = 4, y = 11}
  30 }
  31
  32 -- The red portals teleport us! *gasp* Excitement!
  33 if onAny(redPortalLocations) then
  34         print("Lua says: Teleported!")
  35         entity:gotoRandomTile()
  36 end
  37