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HTML

              
                section
   .controls
      .newGameCtrl
         input(type="checkbox" id="check")
         label.newMain(for="check")
            .newMainText new
         .newContainer
            .newPlate
               .boardCellCircle(id="new-O")
            .newPlate
               .boardCellCross(id="new-X")
      .sizeCtrl
         .newMain
            .newMainText(id="scale-Up") +
      .sizeCtrl
         .newMain
            .newMainText(id="scale-Down") -
      .messages
         .messagesContainer
            .newMainText(id="message") try to get 5 in a row!
   .board
      - for (var x = 0; x < 15; x++)
         .boardRow
            - for (var y = 0; y < 15; y++)
               .boardCol
                  .boardCell(id=x + "-" + y)
              
            
!

CSS

              
                @import "bourbon";
@import url(https://fonts.googleapis.com/css?family=Roboto:700);

$FlatWetAsphalt : #34495e;
$FlatAlizarin : #e74c3c;
$FlatMidnightBlue : #2c3e50;
$FlatEmerald : #2ecc71;
$FlatClouds: #ecf0f1;

$mainFont: 'Roboto', sans-serif;

$boardWidth: 400px;
$boardSize: 15;
$boardElementWidth: 3px;

body {
  margin: 0;
  padding: 0;
  background-color: $FlatMidnightBlue;
  min-width: 300px;
}

section {
  margin-top: 10px;
}

.board {
  margin: auto;
  margin-top: 10px;
  width: $boardWidth;
  height: $boardWidth;
}

.boardRow {
  width: 100%;
  height: 100% / $boardSize;
  border-bottom: 1px solid $FlatMidnightBlue;
  box-sizing: border-box;
}

.boardCol {
  $columnWidth : 100%;
  width: $columnWidth / $boardSize;
  height: 100%;
  background-color: $FlatWetAsphalt;
  float: left;
  border-radius: 3px;
  border-left: 1px solid $FlatMidnightBlue;
  box-sizing: border-box;
}

.boardCellCross {
  $cellWidth : 70% * 1.41;
  margin: auto;
  margin-top: (100% - $cellWidth) / 2;
  width: $boardElementWidth;
  height: $cellWidth;
  background-color: $FlatEmerald;
  @include transform(rotate(-45deg));
  border-radius: $boardElementWidth / 2;
  &:before {
    background-color: inherit;
    border-radius: inherit;
    height: inherit;
    width: inherit;
    position: absolute;
    content: "";
    @include transform(rotate(90deg));
  }
}

.boardCellCircle {
  $cellWidth : 70%;
  margin: (100% - $cellWidth) / 2;
  width: $cellWidth;
  height: $cellWidth;
  border: $boardElementWidth solid $FlatAlizarin;
  border-radius: 50%;
  box-sizing: border-box;
}

.controls {
  width: $boardWidth;
  height: $boardWidth / $boardSize;
  margin: auto;
}

.newGameCtrl, .sizeCtrl, .messages {
  position: relative;
  display: inline-block;
  height: 100%;
  width: 100% / 15 * 1;
}

.sizeCtrl,.messages {
  float:right;
}

.messages {
  width: 100% /15 *11;
  z-index: 0;
}

#check {
  display: none;
}

.newContainer {
  z-index: 10;
}

.newMain, .sizeScale, .messagesContainer {
  width: 100%;
  height: 100%;
  position: absolute;
  z-index: 50;
  display: table;
  text-align: center;
}

.newMain, .sizeScale {
  cursor: pointer;
  background-color: $FlatEmerald;
  border-radius: 50%;
  &:hover {
    background-color: $FlatAlizarin;
  }
}

.newMainText {
  font-family: $mainFont;
  font-size: 13px;
  color: $FlatMidnightBlue;
  display: table-cell;
  vertical-align: middle;
}

.messagesContainer .newMainText {
  color: $FlatEmerald;
}
.messagesContainer .looseState {
  color: $FlatAlizarin;
}

.newPlate {
  width: 100%;
  height: 100%;
  opacity: 0;
  @include transition(all 0.2s ease-in);
  @include position(absolute, 0 0 0 0);
  z-index: 5;
  &:hover {
    background-color: $FlatWetAsphalt;
  }
}

$base: 0;
@for $i from 1 through 2 {
  .newPlate:nth-of-type(#{$i}) {
    @include transition-delay(#{$base + s});
  }
  $base: $base + 0.3;
}

#check:checked ~ .newMain + .newContainer {
  .newPlate {
    opacity: 1;
  }
  .newPlate:nth-of-type(1) {
    left: 100%;
  }
  .newPlate:nth-of-type(2) {
    left: 200%;
  }
}
              
            
!

JS

              
                /**
 * browserify, combines 3 modules
*/
(function e(t, n, r) {
  function s(o, u) {
    if (!n[o]) {
      if (!t[o]) {
        var a = typeof require == "function" && require;
        if (!u && a) return a(o, !0);
        if (i) return i(o, !0);
        var f = new Error("Cannot find module '" + o + "'");
        throw f.code = "MODULE_NOT_FOUND", f
      }
      var l = n[o] = {
        exports: {}
      };
      t[o][0].call(l.exports, function(e) {
        var n = t[o][1][e];
        return s(n ? n : e)
      }, l, l.exports, e, t, n, r)
    }
    return n[o].exports
  }
  var i = typeof require == "function" && require;
  for (var o = 0; o < r.length; o++) s(r[o]);
  return s
})({
/**
 * browserify ends, modules:
*/
  1: [function(require, module, exports) {
    
    module.exports = function() {
      var win = [
        [1, 1, 1, 1, 1]
      ];
      var unCovered4 = [
        [0, 1, 1, 1, 1, 0]
      ];
      var unCovered3 = [
        [0, 1, 1, 1, 0, 0],
        [0, 0, 1, 1, 1, 0],
        [0, 1, 0, 1, 1, 0],
        [0, 1, 1, 0, 1, 0]
      ];
      var unCovered2 = [
        [0, 0, 1, 1, 0, 0],
        [0, 1, 0, 1, 0, 0],
        [0, 0, 1, 0, 1, 0],
        [0, 1, 1, 0, 0, 0],
        [0, 0, 0, 1, 1, 0],
        [0, 1, 0, 0, 1, 0]
      ];
      var covered4 = [
        [-1, 1, 0, 1, 1, 1],
        [-1, 1, 1, 0, 1, 1],
        [-1, 1, 1, 1, 0, 1],
        [-1, 1, 1, 1, 1, 0],
        [0, 1, 1, 1, 1, -1],
        [1, 0, 1, 1, 1, -1],
        [1, 1, 0, 1, 1, -1],
        [1, 1, 1, 0, 1, -1]
      ];
      var covered3 = [
        [-1, 1, 1, 1, 0, 0],
        [-1, 1, 1, 0, 1, 0],
        [-1, 1, 0, 1, 1, 0],
        [0, 0, 1, 1, 1, -1],
        [0, 1, 0, 1, 1, -1],
        [0, 1, 1, 0, 1, -1],
        [-1, 1, 0, 1, 0, 1, -1],
        [-1, 0, 1, 1, 1, 0, -1],
        [-1, 1, 1, 0, 0, 1, -1],
        [-1, 1, 0, 0, 1, 1, -1]
      ];

      (function() { //add same combinations for another player
        var allCombos = [win, unCovered4, unCovered3, unCovered2, covered4, covered3];
        for (var k = 0; k < allCombos.length; k++) {
          var temp = [];
          for (var j = 0; j < allCombos[k].length; j++) {
            var tmp = [];
            for (var i = 0; i < allCombos[k][j].length; i++)
              tmp[i] = -allCombos[k][j][i];
            temp.push(tmp);
          }
          for (var m = 0; m < temp.length; m++) {
            allCombos[k].push(temp[m]);
          }
        }
      }());

      var valueCombo = function(w, u2, u3, u4, c3, c4) {
        if (w > 0) return 1000000000;
        if (u4 > 0) return 100000000;
        if (c4 > 1) return 10000000;
        if (u3 > 0 && c4 > 0) return 1000000;
        if (u3 > 1) return 100000;

        if (u3 == 1) {
          if (u2 == 3) return 40000;
          if (u2 == 2) return 38000;
          if (u2 == 1) return 35000;
          return 3450;
        }

        if (c4 == 1) {
          if (u2 == 3) return 4500;
          if (u2 == 2) return 4200;
          if (u2 == 1) return 4100;
          return 4050;
        }

        if (c3 == 1) {
          if (u2 == 3) return 3400;
          if (u2 == 2) return 3300;
          if (u2 == 1) return 3100;
        }

        if (c3 == 2) {
          if (u2 == 2) return 3000;
          if (u2 == 1) return 2900;
        }

        if (c3 == 3) {
          if (u2 == 1) return 2800;
        }

        if (u2 == 4) return 2700;
        if (u2 == 3) return 2500;
        if (u2 == 2) return 2000;
        if (u2 == 1) return 1000;
        return 0;
      };

      var findArray = function(arr, inArr) {
        var fCount = arr.length;
        var sCount = inArr.length;
        var k;
        for (var i = 0; i <= fCount - sCount; i++) {
          k = 0;
          for (var j = 0; j < sCount; j++) {
            if (arr[i + j] == inArr[j]) k++;
            else break;
          }
          if (k == sCount) return true;
        }
        return false;
      };

      var isAnyInArrays = function(combos, arr) {
        for (var i = 0; i < combos.length; i++) {
          if (findArray(arr, combos[i])) return true;
        }
        return false;
      };

      var combinations = {};
      combinations.winValue = 1000000000;
      combinations.valuePosition = function(arr1, arr2, arr3, arr4) { // 4 directions
        var w = 0,
          u2 = 0,
          u3 = 0,
          u4 = 0,
          c3 = 0,
          c4 = 0;
        var allArr = [arr1, arr2, arr3, arr4];
        for (var i = 0; i < allArr.length; i++) {
          if (isAnyInArrays(win, allArr[i])) {
            w++;
            continue;
          }
          if (isAnyInArrays(covered4, allArr[i])) {
            c4++;
            continue;
          }
          if (isAnyInArrays(covered3, allArr[i])) {
            c3++;
            continue;
          }
          if (isAnyInArrays(unCovered4, allArr[i])) {
            u4++;
            continue;
          }
          if (isAnyInArrays(unCovered3, allArr[i])) {
            u3++;
            continue;
          }
          if (isAnyInArrays(unCovered2, allArr[i])) {
            u2++;
          }
        }
        return valueCombo(w, u2, u3, u4, c3, c4);
      };
      return combinations;
    };
  }, {}],
  2: [function(require, module, exports) {
    Array.matrix = function(m, n, initial) {
      var a, i, j, mat = [];
      for (i = 0; i < m; i++) {
        a = [];
        for (j = 0; j < n; j++) {
          a[j] = initial;
        }
        mat[i] = a;
      }
      return mat;
    };

    var initCombinations = require('./combinations');

    module.exports = function(player) {
      var gameSize = 5; // 5 in line
      var ring = 1; // ring size around current cells
      var win = false;
      var cellsCount = 15;
      var curState = Array.matrix(15, 15, 0);
      var complexity = 1;
      var maxPlayer = player || -1; // X = 1, O = -1
      var combinations = initCombinations();
      if (maxPlayer === -1) curState[7][7] = 1;

      var checkWin = function() {
        for (var i = 0; i < cellsCount; i++) {
          for (var j = 0; j < cellsCount; j++) {
            if (curState[i][j] == 0) continue;
            var playerVal = combinations.valuePosition(
              getCombo(curState, curState[i][j], i, j, 1, 0),
              getCombo(curState, curState[i][j], i, j, 0, 1),
              getCombo(curState, curState[i][j], i, j, 1, 1),
              getCombo(curState, curState[i][j], i, j, 1, -1)
            );
            if (playerVal === combinations.winValue) {
              win = true;
            }
          }
        }
      };

      var miniMax = function minimax(node, depth, player, parent) {
        if (depth == 0) return heuristic(node, parent);
        var alpha = Number.MIN_VALUE;
        var childs = getChilds(node, player);
        for (var i = 0; i < childs.length; i++) {
          alpha = Math.max(alpha, -minimax(childs[i], depth - 1, -player, node));
        }
        return alpha;
      };

      var isAllSatisfy = function(candidates, pointX, pointY) {
        var counter = 0;
        for (var i = 0; i < candidates.length; i++) {
          if (pointX != candidates[i][0] || pointY != candidates[i][1]) counter++;
        }
        return counter == candidates.length;
      };

      var getChilds = function(parent, player) {
        var children = [];
        var candidates = [];
        for (var i = 0; i < cellsCount; i++) {
          for (var j = 0; j < cellsCount; j++) {
            if (parent[i][j] != 0) {
              for (var k = i - ring; k <= i + ring; k++) {
                for (var l = j - ring; l <= j + ring; l++) {
                  if (k >= 0 && l >= 0 && k < cellsCount && l < cellsCount) {
                    if (parent[k][l] == 0) {
                      var curPoint = [k, l];
                      var flag = isAllSatisfy(candidates, curPoint[0], curPoint[1]);
                      if (flag) candidates.push(curPoint);
                    }
                  }
                }
              }
            }
          }
        }
        for (var f = 0; f < candidates.length; f++) {
          var tmp = Array.matrix(cellsCount, cellsCount, 0);
          for (var m = 0; m < cellsCount; m++) {
            for (var n = 0; n < cellsCount; n++) {
              tmp[m][n] = parent[m][n];
            }
          }
          tmp[candidates[f][0]][candidates[f][1]] = -player;
          children.push(tmp);
        }
        return children;
      };

      var getCombo = function(node, curPlayer, i, j, dx, dy) {
        var combo = [curPlayer];
        for (var m = 1; m < gameSize; m++) {
          var nextX1 = i - dx * m;
          var nextY1 = j - dy * m;
          if (nextX1 >= cellsCount || nextY1 >= cellsCount || nextX1 < 0 || nextY1 < 0) break;
          var next1 = node[nextX1][nextY1];
          if (node[nextX1][nextY1] == -curPlayer) {
            combo.unshift(next1);
            break;
          }
          combo.unshift(next1);
        }
        for (var k = 1; k < gameSize; k++) {
          var nextX = i + dx * k;
          var nextY = j + dy * k;
          if (nextX >= cellsCount || nextY >= cellsCount || nextX < 0 || nextY < 0) break;
          var next = node[nextX][nextY];
          if (next == -curPlayer) {
            combo.push(next);
            break;
          }
          combo.push(next);
        }
        return combo;
      };

      var heuristic = function(newNode, oldNode) {
        for (var i = 0; i < cellsCount; i++) {
          for (var j = 0; j < cellsCount; j++) {
            if (newNode[i][j] != oldNode[i][j]) {
              var curCell = newNode[i][j];
              var playerVal = combinations.valuePosition(
                getCombo(newNode, curCell, i, j, 1, 0),
                getCombo(newNode, curCell, i, j, 0, 1),
                getCombo(newNode, curCell, i, j, 1, 1),
                getCombo(newNode, curCell, i, j, 1, -1)
              );
              newNode[i][j] = -curCell;
              var oppositeVal = combinations.valuePosition(
                getCombo(newNode, -curCell, i, j, 1, 0),
                getCombo(newNode, -curCell, i, j, 0, 1),
                getCombo(newNode, -curCell, i, j, 1, 1),
                getCombo(newNode, -curCell, i, j, 1, -1)
              );
              newNode[i][j] = -curCell;
              return 2 * playerVal + oppositeVal;
            }
          }
        }
        return 0;
      };

      var getLogic = {};
      getLogic.winState = "";
      getLogic.makeAnswer = function(x, y) {
        var that = this;
        curState[x][y] = maxPlayer;
        checkWin();
        if (win) {
          that.winState = "you win";
          return "";
        }
        var answ = [-1, -1];
        var c = getChilds(curState, maxPlayer);
        var maxChild = -1;
        var maxValue = Number.MIN_VALUE;
        for (var k = 0; k < c.length; k++) {
          var curValue = miniMax(c[k], 0, -maxPlayer, curState);
          if (complexity > 1) {
            //var curValue2 = miniMax(c[k], complexity - 1, -maxPlayer, curState);
            //use it for more complex game!
          }
          if (maxValue < curValue) {
            maxValue = curValue;
            maxChild = k;
          }
        }
        for (var i = 0; i < cellsCount; i++) {
          for (var j = 0; j < cellsCount; j++) {
            if (c[maxChild][i][j] != curState[i][j]) {
              answ[0] = i;
              answ[1] = j;
              curState[answ[0]][answ[1]] = -maxPlayer;
              checkWin();
              if (win) {
                that.winState = "you lost";
              }
              return answ;
            }
          }
        }
        return answ;
      };
      return getLogic;
    };
  }, {
    "./combinations": 1
  }],
  3: [function(require, module, exports) {
    $(document).ready(function() {
      var initLogic = require('./gomoku/logic');
      var logic = initLogic();

      $("#7-7").addClass("boardCellCross");
      var currValue = -1; // player - O, computer - X
      var gameOver = false;

      $('div.boardCol').mousedown(handleMouseDown);

      function handleMouseDown(e) {
        if (gameOver) return "";
        var cell = $(this);
        if (cell.children().hasClass("boardCellCircle")) return "";
        if (cell.children().hasClass("boardCellCross")) return "";
        var indexes = (cell.children().attr('id')).split("-");
        var answer = logic.makeAnswer(indexes[0], indexes[1]);
        if (answer !== "") {
          var getedId = '#' + answer[0] + '-' + answer[1];
          $(getedId).addClass(deserve());
        } else currValue *= -1;
        cell.children().addClass(deserve());

        function deserve() {
          currValue *= -1;
          if (currValue === 1) {
            return "boardCellCross";
          }
          return "boardCellCircle";
        }
        if (logic.winState !== "") {
          var message = $("#message");
          message.text(logic.winState);
          gameOver = true;
          message.removeClass("looseState");
          if (logic.winState === "you lost") {
            message.addClass("looseState");
          }
        }
      }

      $("#scale-Up").click(handleScale);
      $("#scale-Down").click(handleScale);

      function handleScale(e) {
        var value = 100;
        var minValue = 300;
        var delta = $(this).attr('id').split("-")[1];
        var board = $(".board");
        var controls = $(".controls");
        if (delta === "Up") {
          board.width(board.width() + value);
          board.height(board.height() + value);
          controls.width(controls.width() + value);
          controls.height(controls.height() + value / 15);
        }
        if (delta === "Down" && board.width() > minValue) {
          board.width(board.width() - value);
          board.height(board.height() - value);
          controls.width(controls.width() - value);
          controls.height(controls.height() - value / 15);
        }
      }

      $("#new-O").parent().click(handleNewGame);
      $("#new-X").parent().click(handleNewGame);

      function handleNewGame(e) {
        var index = ($(this).children().attr('id')).split("-")[1];
        $(".boardCell").removeClass("boardCellCross boardCellCircle");
        gameOver = false;
        $("#message").text("");
        if (index === "O") {
          logic = initLogic();
          $("#7-7").addClass("boardCellCross");
          currValue = -1;
        }
        if (index === "X") {
          logic = initLogic(1);
          currValue = 1;
        }
        $("#check").prop('checked', false);
      }
    });
  }, {
    "./gomoku/logic": 2
  }]
}, {}, [3])
              
            
!
999px

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