Snail Sort

snailsort.js

snail = function(array) {
 var result = [];
 var n=array.length;
 var x=n;
 var y=n;
 if(n==1){
     return array[0];
 }
 while(y>1){
     for(j=0;j<y;j++){
         result.push(array[0][j]);
     }
     array.splice(0,1);
     y--;
     for(j=0;j<y;j++){
         result.push(array[j][y]);
         array[j].splice(y);
     }
     x--;
     for(j=x-1;j>=0;j--){
         result.push(array[y-1][j]);
     }
     array.splice(y-1);
     x--;
     for(j=y-1;j>0;j--){
         result.push(array[j-1][0]);
         array[j-1].splice(0,1);
     }
     y--;
     if(y==1&&x==1){
        result.push(array[0][0]);
 }
 }
 return result;
}
/*array = [[1,2,3],
         [8,9,4],
         [7,6,5]]
*/
array=[[1,2,3,4],
       [5,6,7,8],
       [9,10,11,12],
       [13,14,15,16]];

console.log('result:'+snail(array));