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singleElim

By: a guest on Dec 20th, 2012  |  syntax: JavaScript  |  size: 1.84 KB  |  views: 119  |  expires: Never
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  1. var seeds = [
  2.       1,2,3,4,5,6,7,8
  3.     ],
  4.     num_rounds = Math.log(seeds.length)/Math.log(2);
  5.  
  6. // 2-dimensional array
  7. // Each subarray holds the seeds active in that round in order of matches played
  8. // Example:
  9. // seeds in first match of 2nd round are: seed_round[1][0] & seed_round[1][1]
  10. var seed_rounds = [];
  11.  
  12. // Create empty arrays inside seed_round
  13. for(var i = 0; i < num_rounds; i++) {
  14.   seed_rounds[i] = [];
  15. }
  16.  
  17. // Assuming no upsets
  18. // Final is seed 1 and seed 2
  19. seed_rounds[num_rounds] = [ seeds[0], seeds[1] ];
  20.  
  21. // For each round in the bracket
  22. for(var r = num_rounds; r > 0; r--) {
  23.   var round = seed_rounds[r];
  24.   var feed_round = seed_rounds[r - 1];
  25.  
  26.   // For each seed in the round, work out who they defeated in previous round, storing result
  27.   for(var m = 0; m < round.length; m++) {
  28.     var num_teams_in_round = round.length * 2;
  29.     // Feeder match seed A = current match seed "m"
  30.     feed_round[m * 2] = round[m];
  31.  
  32.     // Feeder match seed B = # teams in feeder round plus 1 minus current match seed "m"
  33.     feed_round[(m * 2) + 1] = num_teams_in_round + 1 - round[m];
  34.   }  
  35. }
  36.  
  37. var firstHalf = [];
  38. var secondHalf = [];
  39.  
  40. for(var i = 0; i < (seeds.length / 2); i++) {
  41.   firstHalf[i] = seed_rounds[1][i];
  42. }
  43.  
  44. for(var i = 0; i < num_rounds; i++) {
  45.   secondHalf[i] = seed_rounds[1].slice((seeds.length / 2), (seeds.length));
  46. }
  47.  
  48. secondHalf[1].reverse();
  49.  
  50. var newSeeds = firstHalf.concat(secondHalf[1]);
  51.  
  52. var singleElim8Data = {
  53.         teams : [              // Matchups
  54.                 [ newSeeds[0],  newSeeds[1]  ],
  55.     [ newSeeds[2],  newSeeds[3]  ],
  56.     [ newSeeds[4],  newSeeds[5]  ],
  57.     [ newSeeds[6],  newSeeds[7]  ]
  58.   ],
  59.   results : [[
  60.       [ [1, 0], [1, 0], [0, 1], [0,1] ],
  61.       [ [1, 0], [0, 1] ],
  62.       [ [1, 0], [0, 1] ]
  63.     ]]
  64. }
  65.  
  66. $(function() {
  67.         $('#singleElim8').bracket({
  68.                 init: singleElim8Data
  69.         })
  70. })
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