@irysius/grid-math/Rect.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 });
    function create(x, y, width, height, type) {
        let result = { x, y, width, height };
        if (type != null) {
            result.type = type;
        }
        return result;
    }
    exports.create = create;
    function empty(type) {
        let result = { x: 0, y: 0, width: 0, height: 0 };
        if (type != null) {
            result.type = type;
        }
        return result;
    }
    exports.empty = empty;
    function fromClientBounds(v) {
        return {
            x: v.left, y: v.top,
            width: v.width, height: v.height
        };
    }
    exports.fromClientBounds = fromClientBounds;
    function isRect(v, typeToCheck) {
        return !!(v &&
            typeof v.x === 'number' &&
            typeof v.y === 'number' &&
            typeof v.width === 'number' &&
            typeof v.height === 'number') &&
            (v.type == null || typeof v.type === 'string') &&
            (typeof typeToCheck !== 'string' || v.type === typeToCheck);
    }
    exports.isRect = isRect;
    function areEqual(a, b, ignoreType) {
        return (ignoreType || a.type === b.type) &&
            (a.x === b.x && a.y === b.y &&
                a.width == b.width && a.height === b.height);
    }
    exports.areEqual = areEqual;
    function closeEnough(e) {
        return function areCloseEnough(a, b, ignoreType) {
            return (ignoreType || a.type === b.type) &&
                (Math.abs(a.x - b.x) < e &&
                    Math.abs(a.y - b.y) < e &&
                    Math.abs(a.width - b.width) < e &&
                    Math.abs(a.height - b.height) < e);
        };
    }
    exports.closeEnough = closeEnough;
    function clone(v) {
        return Object.assign({}, v);
    }
    exports.clone = clone;
});