migalib/dist/utils.js

MIGAlib - MInimal GAme LIBrary

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Utils = void 0;
var gameloop_1 = require("./gameloop");
var UtilsSingleton = /** @class */ (function () {
    function UtilsSingleton() {
    }
    UtilsSingleton.prototype.intersects = function (x1, y1, width1, height1, x2, y2, width2, height2) {
        return !(x2 - width2 / 2 > x1 + width1 / 2 ||
            x2 + width2 / 2 < x1 - width1 / 2 ||
            y2 - height2 / 2 > y1 + height1 / 2 ||
            y2 + height2 / 2 < y1 - height1 / 2);
    };
    UtilsSingleton.prototype.rectContainsPoint = function (x1, y1, width1, height1, pointX, pointY) {
        return (x1 <= pointX &&
            pointX <= x1 + width1 &&
            y1 <= pointY &&
            pointY <= y1 + height1);
    };
    UtilsSingleton.prototype.interpolate = function (num) {
        return Math.floor(num * gameloop_1.GameLoop.getDeltaTime());
    };
    UtilsSingleton.prototype.calculateRotationToPoint = function (sourceX, sourceY, destinationX, destinationY) {
        return Math.atan2(destinationY - sourceY, destinationX - sourceX);
    };
    UtilsSingleton.prototype.lerp = function (a, b, t, transform) {
        return (a * (1 - (transform ? transform(t) : t)) +
            b * (transform ? transform(t) : t));
    };
    UtilsSingleton.prototype.getWebGLColor = function (originalHex, alphaChannel) {
        if (alphaChannel === void 0) { alphaChannel = 0xff000000; }
        return (alphaChannel +
            ((originalHex & 0xff0000) >>> 16) +
            (originalHex & 0x00ff00) +
            ((originalHex & 0x0000ff) << 16));
    };
    UtilsSingleton.prototype.lerpPingPong = function (a, b, t, transform) {
        return this.lerp(a, b, transform
            ? transform(1 - Math.abs((t % 2) - 1))
            : 1 - Math.abs((t % 2) - 1));
    };
    UtilsSingleton.prototype.easeIn = function (t) {
        return t * t;
    };
    UtilsSingleton.prototype.easeOut = function (t) {
        return 1 - (1 - t) * (1 - t);
    };
    UtilsSingleton.prototype.easeInOut = function (t) {
        return this.lerp(this.easeIn(t), this.easeOut(t), t);
    };
    return UtilsSingleton;
}());
exports.Utils = new UtilsSingleton();