@awayfl/awayfl-player
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Flash Player emulator for executing SWF files (published for FP versions 6 and up) in javascript
111 lines (110 loc) • 3.81 kB
JavaScript
/*
* Copyright (c) 2006-2007 Erin Catto http://www.gphysics.com
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
import { b2Math } from '../Math';
/// A 2D column vector.
var b2Vec2 = /** @class */ (function () {
function b2Vec2(x_, y_) {
if (x_ === void 0) { x_ = 0; }
if (y_ === void 0) { y_ = 0; }
this.__fast__ = true;
this.x = x_;
this.y = y_;
}
b2Vec2.prototype.SetZero = function () { this.x = 0.0; this.y = 0.0; };
b2Vec2.prototype.Set = function (x_, y_) {
if (x_ === void 0) { x_ = 0; }
if (y_ === void 0) { y_ = 0; }
this.x = x_;
this.y = y_;
};
b2Vec2.prototype.SetV = function (v) { this.x = v.x; this.y = v.y; };
b2Vec2.prototype.Negative = function () { return new b2Vec2(-this.x, -this.y); };
b2Vec2.Make = function (x_, y_) {
return new b2Vec2(x_, y_);
};
b2Vec2.prototype.Copy = function () {
return new b2Vec2(this.x, this.y);
};
b2Vec2.prototype.Add = function (v) {
this.x += v.x;
this.y += v.y;
};
b2Vec2.prototype.Subtract = function (v) {
this.x -= v.x;
this.y -= v.y;
};
b2Vec2.prototype.Multiply = function (a) {
this.x *= a;
this.y *= a;
};
b2Vec2.prototype.MulM = function (A) {
var tX = this.x;
this.x = A.col1.x * tX + A.col2.x * this.y;
this.y = A.col1.y * tX + A.col2.y * this.y;
};
b2Vec2.prototype.MulTM = function (A) {
var tX = b2Math.b2Dot(this, A.col1);
this.y = b2Math.b2Dot(this, A.col2);
this.x = tX;
};
b2Vec2.prototype.CrossVF = function (s) {
var tX = this.x;
this.x = s * this.y;
this.y = -s * tX;
};
b2Vec2.prototype.CrossFV = function (s) {
var tX = this.x;
this.x = -s * this.y;
this.y = s * tX;
};
b2Vec2.prototype.MinV = function (b) {
this.x = this.x < b.x ? this.x : b.x;
this.y = this.y < b.y ? this.y : b.y;
};
b2Vec2.prototype.MaxV = function (b) {
this.x = this.x > b.x ? this.x : b.x;
this.y = this.y > b.y ? this.y : b.y;
};
b2Vec2.prototype.Abs = function () {
if (this.x < 0)
this.x = -this.x;
if (this.y < 0)
this.y = -this.y;
};
b2Vec2.prototype.Length = function () {
return Math.sqrt(this.x * this.x + this.y * this.y);
};
b2Vec2.prototype.LengthSquared = function () {
return (this.x * this.x + this.y * this.y);
};
b2Vec2.prototype.Normalize = function () {
var length = Math.sqrt(this.x * this.x + this.y * this.y);
if (length < Number.MIN_VALUE) {
return 0.0;
}
var invLength = 1.0 / length;
this.x *= invLength;
this.y *= invLength;
return length;
};
b2Vec2.prototype.IsValid = function () {
return b2Math.b2IsValid(this.x) && b2Math.b2IsValid(this.y);
};
return b2Vec2;
}());
export { b2Vec2 };