Smart save/load system, lot of new shortcuts

keyboard.lua

@@ -1,7 +1,41 @@
 function update_keyboard()
   --get keys inputs
-  --debug key
-  if love.keyboard.isDown("d") then debug.debug() end
+  --change screen
+  local buffer = k_q
+  k_q = love.keyboard.isScancodeDown("a")
+  if k_q and not buffer and screen_id%100 > 0 then
+    save()
+    screen_id = screen_id - 1
+    load()
+  end
+  local buffer = k_d
+  k_d = love.keyboard.isScancodeDown("d")
+  if k_d and not buffer and screen_id%100 < 99 then
+    save()
+    screen_id = screen_id + 1
+    load()
+  end
+  local buffer = k_z
+  k_z = love.keyboard.isScancodeDown("w")
+  if k_z and not buffer and screen_id < 9900 then
+    save()
+    screen_id = screen_id + 100
+    load()
+  end
+  local buffer = k_s
+  k_s = love.keyboard.isScancodeDown("s")
+  if k_s and not buffer and screen_id > 100 then
+    save()
+    screen_id = screen_id - 100
+    load()
+  end
+  local buffer = k_i
+  k_i = love.keyboard.isScancodeDown("i")
+  if k_i and not buffer then
+    save()
+    screen_id = 5050
+    load()
+  end
   --swap selected object
   local buffer = k_tab
   k_tab = love.keyboard.isScancodeDown("tab")
@@ -18,14 +52,15 @@ function update_keyboard()
     love.event.quit()
   end
   --saving/export
-  local buffer = k_s
-  k_s = love.keyboard.isDown("s")
-  if k_s and not buffer then
-    print(save())
+  local buffer = k_c
+  k_c = love.keyboard.isDown("c")
+  if k_c and not buffer then
+    save()
   end
   local buffer = k_o
   k_o = love.keyboard.isDown("o")
   if k_o and not buffer then
+    load()
   end
   --scaling
   local buffer = k_k

load.lua

@@ -1,8 +1,10 @@
 --scaling settings
 love.graphics.setDefaultFilter("nearest", "nearest")
 
-selected_screen = "000000000000000000000000000000000000000000000000000000......................0000......................0000......................0000......................0000......................0000......................0000......................0000......................0000......................0000......................0000......................000000000000000000000000000000000000000000000000000000"
+default_screen = "000000000000000000000000000000000000000000000000000000......................0000......................0000......................0000......................0000......................0000......................0000......................0000......................0000......................0000......................0000......................000000000000000000000000000000000000000000000000000000"
 SCREEN_LEN = 390
+screen_id = 5050
+load()
 path = "../platformer/"
 
 --font

main.lua

@@ -1,9 +1,9 @@
 function love.load()
+  require("save")
   require("load")
   require("update")
   require("draw")
   require("mouse")
   require("keyboard")
   require("tiles")
-  require("save")
 end

save.lua

@@ -1,13 +1,19 @@
 function save()
-  output = "\n-"
-  for i = 1, 28, 1 do output = "-"..output end
-  for i = 1, #selected_screen, 1 do
-    output = output..selected_screen:sub(i, i)
-    if i % 26 == 0 then output = output.."-\n-" end
+  if selected_screen ~= default_screen then
+    file = io.open("screens/"..screen_id..".scr", "w")
+    file:write(selected_screen)
+    file:close()
+    print("save "..screen_id)
   end
-  for i = 1, 26, 1 do output = output.."-" end
-  return output
 end
 
 function load()
+  file = io.open("screens/"..screen_id..".scr", "r")
+  if file then
+    selected_screen = file:read()
+    file:close()
+  else
+    selected_screen = default_screen
+  end
+  print("load "..screen_id)
 end