@mousepox/math/dist/Vector2.js

Math-related objects and utilities

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Vector2 = void 0;
const core_1 = require("./core");
class Vector2 {
    constructor(x = 0, y = 0) {
        this.x = x;
        this.y = y;
    }
    static fromAngle(radians) {
        return new Vector2(Math.cos(radians), Math.sin(radians));
    }
    get angle() {
        return Math.atan2(this.y, this.x);
    }
    get magnitude() {
        return Math.sqrt(this.x * this.x + this.y * this.y);
    }
    set(x, y) {
        this.x = x;
        this.y = y;
        return this;
    }
    add(p) {
        this.x += p.x;
        this.y += p.y;
        return this;
    }
    copy(p) {
        this.x = p.x;
        this.y = p.y;
        return this;
    }
    normalize() {
        const mag = this.magnitude;
        if (mag === 0) {
            return this;
        }
        else {
            return this.scale(1 / mag);
        }
    }
    scale(n) {
        this.x *= n;
        this.y *= n;
        return this;
    }
    subtract(p) {
        this.x -= p.x;
        this.y -= p.y;
        return this;
    }
    constrain(x, y, width, height) {
        this.x = (0, core_1.clamp)(this.x, x, x + width);
        this.y = (0, core_1.clamp)(this.y, y, y + height);
        return this;
    }
    rotate(angle, origin) {
        var _a, _b;
        const ox = (_a = origin === null || origin === void 0 ? void 0 : origin.x) !== null && _a !== void 0 ? _a : 0;
        const oy = (_b = origin === null || origin === void 0 ? void 0 : origin.y) !== null && _b !== void 0 ? _b : 0;
        const cos = Math.cos(angle);
        const sin = Math.sin(angle);
        const x = (this.x - ox) * cos - (this.y - oy) * sin + ox;
        const y = (this.x - ox) * sin + (this.y - oy) * cos + oy;
        return this.set(x, y);
    }
}
exports.Vector2 = Vector2;