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Author Topic: Array methods  (Read 1831 times)

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MrBehemoth

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Array methods
« on: January 25, 2014, 03:46:05 PM »

I've made some custom methods for working with arrays. They're mostly pretty simple, but handy to have in the toolbox. It's nice to share, so here they are! (Code below.)








ArraySplice(InputArray, SpliceIndex, DeleteLength, InsertArray)                 
Removes and inserts elements in an array and returns a copy of it.         InputArray    Array    The array to be modified
          SpliceIndex    Int    The index of the first element to be deleted and the point to insert new elements
          DeleteLength    Int    The number of elements to be deleted, including the element at SpliceIndex
          InsertArray    Array    The array to be inserted (optional)







ArraySlice(InputArray, SliceIndex, SliceLength)                 
Returns a portion of an array.          InputArray    Array    The array to be extracted from
          SpliceIndex    Int    The index of the first element to be returned
          DeleteLength    Int    The number of elements to be returned, including the element at SliceIndex







ArrayConcat(InputArray1, InputArray2)                 
Returns an array made by joining two arrays together.          InputArray1    Array    The first array to join
          InputArray2    Array    The second array to join







ArrayReverse(InputArray)                 
Returns an array that is the input array in reverse order.          InputArray    Array    The array to be reversed







ArraySort(InputArray, Descending)                 
Sorts a numeric array and returns a copy of it.          InputArray    Array    The array to sort. Must contain only numbers or integers
          Descending    Boolean    If true, the sort will be from highest to lowest (optional)







ObjectArraySort(InputArray, Descending, Renumber)                 
Sorts an array consisting of objects.          InputArray    Array    The array to sort. Must contain only objects, which must all have a property "Index"
This was made for a specific purpose.          Descending    Boolean    If true, the sort will be from highest to lowest (optional)
You may or may not find it useful!          Renumber    Boolean    If true, the objects' "Index" properties will be updated to reflect the new order (optional)










And finally, here's all the code:
Code: WME Script
  1. method ArraySplice(InputArray,SpliceIndex,DeleteLength,InsertArray)
  2. {
  3.         var ReturnArray = new Array();
  4.         var i;
  5.         if(DeleteLength == null) DeleteLength = 0;
  6.         for(i = 0; i < SpliceIndex; i = i + 1)
  7.         {
  8.                 ReturnArray.Push(InputArray[i]);
  9.         }
  10.         if(InsertArray != null)
  11.         {
  12.                 for(i = 0; i < InsertArray.Length; i = i + 1)
  13.                 {
  14.                         ReturnArray.Push(InsertArray[i]);
  15.                 }
  16.         }
  17.         for(i = SpliceIndex + DeleteLength; i < InputArray.Length; i = i + 1)
  18.         {
  19.                 ReturnArray.Push(InputArray[i]);
  20.         }
  21.         return ReturnArray;
  22. }
  23.  
  24. method ArraySlice(InputArray,SliceIndex,SliceLength)
  25. {
  26.         var ReturnArray = new Array();
  27.         var i;
  28.         for(i = SliceIndex; i < SliceIndex + SliceLength; i = i + 1)
  29.         {
  30.                 ReturnArray.Push(InputArray[i]);
  31.         }
  32.         return ReturnArray;
  33. }
  34.  
  35. method ArrayConcat(InputArray1,InputArray2)
  36. {
  37.         var ReturnArray = new Array();
  38.         var i;
  39.         for(i = 0; i < InputArray1.Length; i = i + 1)
  40.         {
  41.                 ReturnArray.Push(InputArray1[i]);
  42.         }
  43.         for(i = 0; i < InputArray2.Length; i = i + 1)
  44.         {
  45.                 ReturnArray.Push(InputArray2[i]);
  46.         }
  47.         return ReturnArray;
  48. }
  49.  
  50. method ArrayReverse(InputArray)
  51. {
  52.         var ReturnArray = new Array();
  53.         var i;
  54.         for(i = InputArray.Length - 1; i >= 0; i = i - 1)
  55.         {
  56.                 ReturnArray.Push(InputArray[i]);
  57.         }
  58.         return ReturnArray;
  59. }
  60.  
  61. method ArraySort(InputArray,Descending)
  62. {
  63.         var ReturnArray = new Array();
  64.         var i;
  65.         var ii;
  66.         var InsertPos;
  67.         var InsertArray;
  68.         ReturnArray.Push(InputArray[0]);
  69.         for(i = 1; i < InputArray.Length; i = i + 1)
  70.         {
  71.                 InsertPos = -1;
  72.                 for(ii = ReturnArray.Length - 1; ii >= 0 ; ii = ii - 1)
  73.                 {
  74.                         if(InputArray[i] > ReturnArray[ii])
  75.                         {
  76.                                 InsertPos = ii + 1;
  77.                                 break;
  78.                         }
  79.                 }
  80.                 InsertArray = new Array();
  81.                 InsertArray.Push(InputArray[i]);
  82.                 if(InsertPos > -1) ReturnArray = ArraySplice(ReturnArray,InsertPos,0,InsertArray);
  83.                 else ReturnArray = ArrayConcat(InsertArray,ReturnArray);
  84.         }
  85.         if(Descending) ReturnArray = ArrayReverse(ReturnArray);
  86.         return ReturnArray;
  87. }
  88.  
  89. method ObjectArraySort(InputArray,Descending,Renumber)
  90. {
  91.         var ReturnArray = new Array();
  92.         var i;
  93.         var ii;
  94.         var InsertPos;
  95.         var InsertArray;
  96.         var InputObject;
  97.         var ReturnObject;
  98.         ReturnArray.Push(InputArray[0]);
  99.         for(i = 1; i < InputArray.Length; i = i + 1)
  100.         {
  101.                 InsertPos = -1;
  102.                 InputObject = InputArray[i];
  103.                 for(ii = ReturnArray.Length - 1; ii >= 0 ; ii = ii - 1)
  104.                 {
  105.                         ReturnObject = ReturnArray[ii];
  106.                         if(InputObject.Index > ReturnObject.Index)
  107.                         {
  108.                                 InsertPos = ii + 1;
  109.                                 break;
  110.                         }
  111.                 }
  112.                 InsertArray = new Array();
  113.                 InsertArray.Push(InputArray[i]);
  114.                 if(InsertPos > -1) ReturnArray = ArraySplice(ReturnArray,InsertPos,0,InsertArray);
  115.                 else ReturnArray = ArrayConcat(InsertArray,ReturnArray);
  116.         }
  117.         if(Descending) ReturnArray = ArrayReverse(ReturnArray);
  118.         if(Renumber)
  119.         {
  120.                 for(i = 0; i < ReturnArray.Length; i = i + 1)
  121.                 {
  122.                         ReturnObject = ReturnArray[i];
  123.                         ReturnObject.Index = i;
  124.                         ReturnArray[i] = ReturnObject;
  125.                 }
  126.         }
  127.         return ReturnArray;
  128. }

Cheers!

piere

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Re: Array methods
« Reply #1 on: January 26, 2014, 08:39:04 AM »

Great post ! Thanks for sharing this  ::rock
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lacosaweb

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Re: Array methods
« Reply #2 on: February 26, 2014, 03:24:20 PM »

Thank you!!!!

It's great!
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