[WIP] Reestructurant codi abans de posar-me en el nivell 2

[NEW] Afegit music_player
[NEW] Música de fons des de l'inici

data/states.lua

@@ -1,25 +1,3 @@
--- flow={
---     level=1,
---     step={0},
---     actiu="",
---     pila={},
---     paths={ {flow_safe} },
---     registre={}    
---     -- sub_path_enable = false,
---     -- sub_step = 0,
---     -- sub_path={}
--- }
-
--- function flow:print()
---     print("> STEP= "..self.step.." / "..#self.path)
---     if self.sub_path_enable then
---         print("> SUB_PATH_ENABLE= TRUE")
---     else
---         print("> SUB_PATH_ENABLE= FALSE")
---     end
---     print("> SUB_STEP= "..self.sub_step.." / "..#self.sub_path)
---     print("")
--- end
 
 states={
     registre={}, -- {nom {ptr (a l'estat actual), path (llista de funcions ordenada)} ...}  
@@ -40,7 +18,8 @@ end
 function states:registrar(nom, _path)
     print("[STATES] REGISTRAR => "..nom)
     self.registre[nom]= {ptr=0, path=_path}
-    print(self.registre[nom].ptr)
+    -- print("    nom.ptr -> "..self.registre[nom].ptr)
+    -- print("    nom.path -> "..#self.registre[nom].path)
 end
 
 function states:borrar(nom)
@@ -68,22 +47,24 @@ function states:executar(nom, stacking)
     end
     self.actiu=nom
     self.registre[self.actiu].ptr=0
+    -- Executar el primer pas
     self:next()
 end
 
 function states:next()
-    print("[STATES] NEXT "..self.actiu);
-    local ptr = self.registre[self.actiu].ptr
-    local steps = #self.registre[self.actiu].path
--- print("STATES_NEXT= "..self.actiu..", "..ptr..", "..steps)    
+    -- print("[STATES] NEXT "..self.actiu);
+    local estat = self.registre[self.actiu]
+    local ptr = estat.ptr
+    local steps = #estat.path
     if ptr+1>steps then
         self:finish()
     else
-        self.registre[self.actiu].ptr = ptr+1
-        game_update = self.registre[self.actiu].path[self.registre[self.actiu].ptr]
+        estat.ptr = ptr+1
+        -- print("[STATES] NEXT "..self.actiu.." ("..estat.ptr.." / "..steps..")")
+        game_update = estat.path[estat.ptr]
     end
     
-    return self.actiu, self.registre[self.actiu].ptr
+    return self.actiu, estat.ptr
 end
 
 function states:finish()