Reload map

Save cities.dat
Tweak travel node loading

cities.lua

@@ -61,6 +61,8 @@ function t.load( filename )
   local n = 1
   local idxPts = 1
   local idxCaps = 1
+  points = {}
+  caps = {}
 
   for line in assert( lfs.lines( filename ), "Error: could not open cities.dat" ) do
 
@@ -96,12 +98,22 @@ function t.load( filename )
 end
 
 function t.save( cities, filename )
+  print( "=== SAVING CITIES ===" )
   local str = {}
   for n, city in ipairs( cities ) do
-    str[n] = ("%-40s%-40s%f %f %d %d"):format( city.name, city.country, city.x, city.y, city.pop, city.capital and 1 or 0 )
+    str[n] = ("%-41s%-41s%-14f%-14f%-19d %d"):format( city.name, city.country, city.x, city.y, city.pop, city.capital and 1 or 0 )
   end
-  assert( lfs.write( filename, table.concat( str, "\n" ) ) )
-  print( "Saved", filename )
+  str = assert(table.concat( str, "\n" ))
+  local file = assert( io.open( filename, "w+" ) )
+  assert( file:write( str ) )
+  file:close()
+  --[[local tmpname = os.tmpname()
+  local tmpfile = assert( io.open( tmpname, "w+" ) )
+  assert( tmpfile:write( str ) )
+  tmpfile:close()
+  os.remove( filename ) --ooh this is probably pretty bad
+  os.rename( tmpname, filename )]]
+  print( "=== CITIES SAVED ===" )
 end
 
 return t

main.lua

@@ -18,6 +18,7 @@ function love.load()
 end
 
 function love.directorydropped( path )
+  if map.path then assert( love.filesystem.unmount( map.path ) ) end
   love.filesystem.mount( path, "" )
   return map.load( path )
 end
@@ -162,11 +163,9 @@ local layerVisibilityKeybinds = {
 
 function love.keypressed(key)
   ToggleVisibility( layerVisibilityKeybinds[key] )
+  wasKeyPressed = true
   
   if key == "l" then
-    -- To open a file or folder, "file://" must be prepended to the path.
-    love.system.openURL("file://"..love.filesystem.getSaveDirectory())
+    return map.save()
   end
-
-  wasKeyPressed = true
 end

map.lua

@@ -25,7 +25,7 @@ local map = {
   cities = false
 }
 
-function map.load( )
+function map.load( path )
   map.cities = Cities.load( "data/earth/cities.dat" )
   map.coastlines = Lines.load( "data/earth/coastlines.dat" )
   map.coastlinesLow = Lines.load( "data/earth/coastlines-low.dat" )
@@ -37,6 +37,7 @@ function map.load( )
     map.territory[k] = Territory.load( "data/earth/"..k..".bmp", k )
   end
   map.loaded = true
+  map.path = path
 end
 
 function map.draw()
@@ -134,7 +135,7 @@ function map.draw()
 end
 
 function map.save()
-  map.cities.save()
+  map.cities:save( map.path.."/data/earth/cities.dat" )
   map.coastlines.save()
   map.coastlinesLow.save()
   map.international.save()