// lib.js

function SceneController(colsCount, rowsCount, types) {
    var _self = this;

    _self.colsCount = colsCount;
    _self.rowsCount = rowsCount;
    _self.types = types;

    _self.getAllWithSameType = function(subjectColNumber, subjectRowNumber) {
        // TODO: do some magic and return list of nearest fields with same type
    };

    _self.disaperAndRefreshField = function(colNumber, rowNumber) {
        // TODO: do some magic and refresh field (write field updating provider)
    }

    (function() {
        // Scene initialization

        for (var x = 0; x < _self.colsCount-1; x++) {
            for (var y = 0; y < _self.rowsCount-1; y++) {
                // TODO: select random type and create field with this one
            }
        }
    })()
}



// app.js

var scene = new SceneController(16, 16);
...