@irysius/grid-math/Direction.js

Tools to assist with grid math and algorithms

(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define(["require", "exports"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var Direction;
    (function (Direction) {
        Direction[Direction["None"] = 0] = "None";
        Direction[Direction["North"] = 1] = "North";
        Direction[Direction["South"] = 2] = "South";
        Direction[Direction["East"] = 4] = "East";
        Direction[Direction["West"] = 8] = "West";
        Direction[Direction["NorthEast"] = 5] = "NorthEast";
        Direction[Direction["NorthWest"] = 9] = "NorthWest";
        Direction[Direction["SouthEast"] = 6] = "SouthEast";
        Direction[Direction["SouthWest"] = 10] = "SouthWest";
    })(Direction = exports.Direction || (exports.Direction = {}));
    function hasDirection(value, targetDirection) {
        if (targetDirection === Direction.None) {
            return value === Direction.None;
        }
        else {
            return (value & targetDirection) === targetDirection;
        }
    }
    exports.hasDirection = hasDirection;
    function directionToString(value) {
        let strings = [
            hasDirection(value, Direction.North) ? 'North' : null,
            hasDirection(value, Direction.South) ? 'South' : null,
            hasDirection(value, Direction.East) ? 'East' : null,
            hasDirection(value, Direction.West) ? 'West' : null
        ].filter(x => x);
        if (strings.length === 0) {
            return 'Direction.None';
        }
        else {
            return `Direction.${strings.join('')}`;
        }
    }
    exports.directionToString = directionToString;
    exports.default = Direction;
});