Add levelIndex to lookup FileIndex & FileLavelIndex from LavelNumber

Author: tomsoftware

game.js

@@ -112,7 +112,7 @@ function createGame(gameCavas, onGameLoaded)
   //--------
 
   game.levelIndexProvider = new LevelIndexProvider(game);
-  game.levelIndexProvider.load();
+  //game.levelIndexProvider.load();
 
 
   game.levelIndex = 0;
@@ -125,12 +125,16 @@ function createGame(gameCavas, onGameLoaded)
   {
     var levelInfo = game.codeGenerator.reverseCode(hash);
 
-    
+    game.levelIndex = levelInfo.levelIndex;
+    game.version = levelInfo.lemmingsVersion;
   }
   else
   {
-    game.levelId = Number.parseInt(hash);
-    if (isNaN(game.levelId)) game.levelId=0;
+    var levelPos = Number.parseInt(hash);
+    if (!isNaN(levelPos))
+    {
+      game.levelIndex = levelPos;
+    }
   }
 
   game.fileLoader = new FileLoader();
@@ -145,7 +149,7 @@ function createGame(gameCavas, onGameLoaded)
 
 
   game.levelHandler = new LevelHandler(game);
-  game.levelHandler.load(onLevelLoaded, game.levelId);
+  game.levelHandler.load(onLevelLoaded, game.levelIndex);
 
   game.eventHandler = new EventHandler(game);
 
@@ -156,7 +160,7 @@ function createGame(gameCavas, onGameLoaded)
     game.levelDrawer.load(onLevelDrawn);
     game.viewX = game.levelHandler.screenPositionX;
 
-    for (var i=0; i<10; i++)
+    for (var i = 0; i < 10; i++)
     {
       game.skills[i] = game.levelHandler.skills[i];
     }

levelHandler.js

@@ -57,15 +57,17 @@ function LevelHandler(gameObject)
   /// Load a Level
   this.load = function(onLoadDoneCallback, levelId)
   {
+    var levelPos = self.game.levelIndexProvider.LevelFileFromLevelIndex(levelId);
+
     self.dfr = new DatFileReader(self.game);
-    self.dfr.read("lemmings/LEVEL00"+ Math.floor(levelId / 100) +".DAT", onLevelLoadDone);
+    self.dfr.read("lemmings/LEVEL00"+ levelPos.fileId +".DAT", onLevelLoadDone);
 
 
     function onLevelLoadDone()
     {
       console.log("Levels in file: "+ self.dfr.getPartCount());
 
-      var fr = self.dfr.getPart(levelId % 100);
+      var fr = self.dfr.getPart(levelPos.fileLevelIndex);
 
       fr.setOffset(0);
 

levelIndexProvider.js

@@ -44,6 +44,7 @@ function LevelIndexProvider(gameObject)
      });
   }
 
+  this.levelSection = ['fun', 'tricky', 'taxing', 'mayhem'];
 
   this.levelIndex = new Array(4);
 
@@ -59,11 +60,56 @@ function LevelIndexProvider(gameObject)
                          57, 59, 61, 63,  3, 65, 67, 69, 71, 73,
                          75, 77, 79, 81, 83, 85, 87, 89, 35, 111];
 
-  this.levelIndex[2] = [ 91,  93,  95,  97,  99, 101, 103, 105, 107, 109,
+  this.levelIndex[3] = [ 91,  93,  95,  97,  99, 101, 103, 105, 107, 109,
                         112, 113, 115, 117, 119, 121, 123, 125, 127, 150,
                         129,   9, 131, 133, 135, 137, 139, 141, 143, 145 ];
 
-  this.CodeBase = "AJHLDHBBCJ";
 
+  //- class LevelFile
+  function LevelFile()
+  {
+    this.fileId = 0;            //- name of "LEVEL__.DAT" file
+    this.fileLevelIndex = 0;    //- level in "LEVEL__.DAT" file
+    this.levelIndex = 0;        //- the levelindex (0 : "Just Dig", 1: "Only floaters can survive", 2 ...)
+    this.levelSectionIndex = 0; //- Value from [this.levelSection]
+    this.version = self.game.VERSION.LEMMINGS;
+
+    this.useOddTable = false;
+    this.oddIndex = -1;
+  }
+
+
+  this.LevelFileFromLevelIndex = function(levelIndex, gameVersion)
+  {
+     var ret = new LevelFile();
+
+     var l = self.levelIndex.length;
+
+     //- read index [levelIndex] from this.levelIndex -> read/indexed over all subarrays
+     var levelPos = -1;
+     var offset = 0;
+     for (var i=0; i<l; i++)
+     {
+       var sectIndex = levelIndex - offset;
+       if ((sectIndex >= 0) && (sectIndex < self.levelIndex[i].length))
+       {
+         levelPos = self.levelIndex[i][sectIndex];
+         break;
+       }
+       offset += self.levelIndex[i].length;
+     }
+
+     //- need to decrement
+     levelPos--;
+     if (levelPos < 0) return null;
+
+     ret.useOddTable = ((levelPos & 0x01) > 0);
+     ret.fileId = (levelPos >>> 4);
+     ret.fileLevelIndex = (levelPos >>> 1) & 0x07;
+     ret.levelIndex = levelIndex;
+     ret.oddIndex = (levelPos -1); // ????
+
+     return ret;
+  }
 
 }