fix: restore modules.game_interface.lastManualWalk for game_bot (#1757)

modules/game_interface/gameinterface.lua

@@ -19,6 +19,10 @@ countWindow = nil
 logoutWindow = nil
 exitWindow = nil
 bottomSplitter = nil
+-- timestamp of the last manual keyboard walk, refreshed by game_walk and read
+-- by consumers (e.g. game_bot) to pause automation while the player walks;
+-- defined here so it is always present whenever this module is loaded
+lastManualWalk = 0
 limitedZoom = false
 currentViewMode = 0
 leftIncreaseSidePanels = nil

modules/game_walk/walk.lua

@@ -120,6 +120,7 @@ local function walk(dir)
         end
     end
 
+    modules.game_interface.lastManualWalk = g_clock.millis()
     g_game.walk(dir)
     return true
 end