Save/load system. Not golfed.

Saves the music flag, the last level the player played, and the furthest level reached. Loads music flag on launch. Title screen starts on most recent level played; when in "release configuration" the title screen will only let the player pick levels up to the maximum reached through gameplay, but right now this is replaced with the 31.

Save file can be wiped by holding the down arrow at the title screen.

chameleonic.p8

@@ -8,8 +8,9 @@ real_modules={}
 frame=0
 function _init()
  -- printh("restarting")
- music_on()
- _doall("init") end
+ _doall("init")
+end
+
 function _update()
  frame+=1
  if (frame%1==0) _doall("update") end
@@ -17,12 +18,16 @@ function _draw()
  _doall("draw") end
 
 function music_on()
- music(0)
+ if (stat(54) ~= 0) music(0)
+ persist.music=true
+ persist:write()
  menuitem(3, "music: on", music_off)
 end
 
 function music_off()
  music(-1)
+ persist.music=false
+ persist:write()
  menuitem(3, "music: off", music_on)
 end
 
@@ -261,7 +266,7 @@ end
 title={}
 add(modules,title)
 
-blinkcol=10
+lvlshimmer = {4,9,10,10,9}
 function title:draw()
  cls(0)
  -- this is right for 72x32
@@ -270,22 +275,33 @@ function title:draw()
  print("[nyeogmi]",62,73,7)
  print("kistaro",32,79,7)
  local lvlstr = "⬅️ "..start_level.." ➡️"
- print(lvlstr,50,91,1)
- print(lvlstr,51,90,blinkcol) 
+ local lx, ly = 51+wrongbleep:vibrate(), 90+wrongbleep:vibrate()
+ print(lvlstr,lx-1,ly+1,1)
+ print(lvlstr,lx,ly,cycle(lvlshimmer)) 
 end
 
-start_level=0
-max_level=31
+function title:init()
+ start_level=persist.recent_level
+ -- max_level=persist.max_level
+ max_level = 31 --debugging/coding
+ wiped = false
+end
 
 function title:update()
- blinkcol=9
- if (time()*4\1%2==0) blinkcol=10
- 
  if (btnp"0") start_level-=1
  if (btnp"1") start_level+=1
- start_level%=max_level
-
- if (btnp"4" or btnp"5") modules=real_modules _init() music(0)
+ start_level%=(max_level+1)
+ if btn"3" and not wiped then
+  wrongbleep:bleep()
+  if (wrongbleep:adequately_warned()) then
+   persist:wipe()
+   max_level = 0
+   start_level = 0
+   wiped=true
+   -- todo: sfx(kaboom!)
+  end
+ end
+ if (btnp"4" or btnp"5") modules=real_modules _init()
 end
 
 -->8
@@ -308,6 +324,8 @@ function level:reinit(n)
  self:load_dynobjs()
  self:recollide_reanchor()
  self:spawn_exit()
+ 
+ persist:lvlstart()
 end
 
 function level:restart()
@@ -1697,6 +1715,7 @@ end
 -->8
 --wrongbleeps
 wrongbleep={}
+add(modules,wrongbleep)
 add(real_modules,wrongbleep)
 function wrongbleep:init()
  self.duration=0
@@ -1704,8 +1723,12 @@ function wrongbleep:init()
 end
 function wrongbleep:update()
  if (self.duration>5) self.duration=5
- if self.duration>0 then sfx(63,3) self.continuous+=1
- else self.continuous=0 end
+ if self.duration>0 then
+  sfx(63,3)
+  self.continuous+=1
+ else
+  self.continuous=0
+ end
  self.duration=max(self.duration-1,-4)
 end
 function wrongbleep:bleep(duration)
@@ -1863,6 +1886,49 @@ function debugmouse:draw3()
  pal()
 end
 
+-->8
+-- save/load
+
+persist={}
+add(modules, persist)
+add(real_modules, persist)
+
+function persist:init0()
+ cartdata("ulimate_lizard_total_destruction_0_1")
+ self.init0 = self.read
+ self:read()
+ self.ready=true
+end
+
+function persist:read()
+ local m = dget(0) == 0
+ self.music = m
+ if m then music_on() else music_off() end
+ self.max_level = dget(1)
+ self.recent_level = dget(2)
+end
+
+function persist:wipe()
+ self.ready=false
+ for i=0,64 do
+  dset(i,0)
+ end
+ self:read()
+ self.ready=true
+end
+
+function persist:lvlstart()
+ self.recent_level = level.ix
+ self.max_level = max(self.max_level, level.ix)
+ self:write()
+end
+
+function persist:write()
+ if (not self.ready) return
+ dset(0, self.music and 0 or -1)
+ dset(1, self.max_level)
+ dset(2, self.recent_level)
+end
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