odin
Version:
Node.js Canvas/WebGL Javascript Game Framework
353 lines (282 loc) • 9.13 kB
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Source: math/aabb2.js</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Source: math/aabb2.js</h1>
<section>
<article>
<pre class="prettyprint source"><code>if (typeof(define) !== "function") {
var define = require("amdefine")(module);
}
define([
"odin/math/mathf",
"odin/math/vec2"
],
function(Mathf, Vec2) {
"use strict";
/**
* @class AABB2
* 2d axis aligned bounding box
* @param Vec2 min
* @param Vec2 max
*/
function AABB2(min, max) {
/**
* @property Vec2 min
* @memberof Odin.AABB2
*/
this.min = min || new Vec2(Infinity, Infinity);
/**
* @property Vec2 max
* @memberof Odin.AABB2
*/
this.max = max || new Vec2(-Infinity, -Infinity);
}
/**
* @method clone
* @memberof Odin.AABB2
* returns new copy of this
* @return AABB2
*/
AABB2.prototype.clone = function() {
return new AABB2(this.min.clone(), this.max.clone());
};
/**
* @method copy
* @memberof Odin.AABB2
* copies other AABB
* @param AABB2 other
* @return this
*/
AABB2.prototype.copy = function(other) {
this.min.copy(other.min);
this.max.copy(other.max);
return this;
};
/**
* @method set
* @memberof Odin.AABB2
* set min and max vectors
* @param Vec2 min
* @param Vec2 max
* @return this
*/
AABB2.prototype.set = function(min, max) {
this.min.copy(min);
this.max.copy(max);
return this;
};
/**
* @method expandPoint
* @memberof Odin.AABB2
* @param Vec2 v
* @return this
*/
AABB2.prototype.expandPoint = function(v) {
this.min.min(v);
this.max.max(v);
return this;
};
/**
* @method expandVec
* @memberof Odin.AABB2
* @param Vec2 v
* @return this
*/
AABB2.prototype.expandVec = function(v) {
this.min.sub(v);
this.max.add(v);
return this;
};
/**
* @method expandScalar
* @memberof Odin.AABB2
* @param Number s
* @return this
*/
AABB2.prototype.expandScalar = function(s) {
this.min.ssub(s);
this.max.sadd(s);
return this;
};
/**
* @method union
* @memberof Odin.AABB2
* joins this and another aabb
* @param AABB2 aabb
* @return this
*/
AABB2.prototype.union = function(other) {
this.min.min(other.min);
this.max.max(other.max);
return this;
};
/**
* @method clear
* @memberof Odin.AABB2
* clears aabb
* @return this
*/
AABB2.prototype.clear = function() {
this.min.set(Infinity, Infinity);
this.max.set(-Infinity, -Infinity);
return this;
};
/**
* @method contains
* @memberof Odin.AABB2
* checks if AABB contains point
* @param Vec2 point
* @return Boolean
*/
AABB2.prototype.contains = function(point) {
var min = this.min,
max = this.max,
px = point.x,
py = point.y;
return !(
px < min.x || px > max.x ||
py < min.y || py > max.y
);
};
/**
* @method intersects
* @memberof Odin.AABB2
* checks if AABB intersects AABB
* @param AABB2 other
* @return Boolean
*/
AABB2.prototype.intersects = function(other) {
var aMin = this.min,
aMax = this.max,
bMin = other.min,
bMax = other.max;
return !(
bMax.x < aMin.x || bMin.x > aMax.x ||
bMax.y < aMin.y || bMin.y > aMax.y
);
};
/**
* @method fromPoints
* @memberof Odin.AABB2
* set min and max from array of vectors
* @param Array points
* @return this
*/
AABB2.prototype.fromPoints = function(points) {
var v, i = points.length,
minx = Infinity,
miny = Infinity,
maxx = -Infinity,
maxy = -Infinity,
min = this.min,
max = this.max,
x, y;
while (i--) {
v = points[i];
x = v.x;
y = v.y;
minx = minx > x ? x : minx;
miny = miny > y ? y : miny;
maxx = maxx < x ? x : maxx;
maxy = maxy < y ? y : maxy;
}
min.x = minx;
min.y = miny;
max.x = maxx;
max.y = maxy;
return this;
};
/**
* @method fromCenterSize
* @memberof Odin.AABB2
* sets this from a center point and a size vector
* @param Vec2 center
* @param Vec2 size
* @return this
*/
AABB2.prototype.fromCenterSize = function(center, size) {
var min = this.min,
max = this.max,
x = center.x,
y = center.y,
hx = size.x * 0.5,
hy = size.y * 0.5;
min.x = x - hx;
min.y = y - hy;
max.x = x + hx;
max.y = y + hy;
return this;
};
/**
* @memberof Odin.AABB2
* @param Odin.AABB2 other
* @return this
*/
AABB2.prototype.equals = function(other) {
return !(!this.min.equals(other.min) || !this.max.equals(other.max));
};
/**
* @method fromJSON
* @memberof Odin.AABB2
* sets values from json object
* @param Object json
* @return this
*/
AABB2.prototype.fromJSON = function(json) {
this.min.fromJSON(json.min);
this.max.fromJSON(json.max);
return this;
};
/**
* @method toJSON
* @memberof Odin.AABB2
* returns json object
* @return Object
*/
AABB2.prototype.toJSON = function(json) {
json || (json = {});
json.min = this.min.toJSON(json.min);
json.max = this.max.toJSON(json.max);
return json;
};
/**
* @method toString
* @memberof Odin.AABB2
* converts AABB to string "AABB2( min: Vec2( -1, -1 ), max: Vec2( 1, 1 ) )"
* @return String
*/
AABB2.prototype.toString = function() {
var min = this.min,
max = this.max;
return "AABB2( min: " + min + ", max: " + max + " )";
};
return AABB2;
}
);
</code></pre>
</article>
</section>
</div>
<nav>
<h2><a href="index.html">Index</a></h2><h3>Classes</h3><ul><li><a href="Canvas.html">Canvas</a></li><li><a href="GUIObject.html">GUIObject</a></li><li><a href="MeshFilter.html">MeshFilter</a></li><li><a href="Odin.html">Odin</a></li><li><a href="Odin.Class.html">Class</a></li><li><a href="Odin.EventEmitter.html">EventEmitter</a></li><li><a href="Odin.GameObject.html">GameObject</a></li><li><a href="Odin.Scene.html">Scene</a></li><li><a href="P2Contact.html">P2Contact</a></li><li><a href="P2Equation.html">P2Equation</a></li><li><a href="P2Friction.html">P2Friction</a></li><li><a href="P2Solver.html">P2Solver</a></li><li><a href="ParticleSystem.html">ParticleSystem</a></li><li><a href="Renderer.html">Renderer</a></li><li><a href="SpriteAnimation.html">SpriteAnimation</a></li><li><a href="WebGLRenderer.html">WebGLRenderer</a></li><li><a href="WebGLRenderer2D.html">WebGLRenderer2D</a></li></ul>
</nav>
<br clear="both">
<footer>
Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.2.2</a> on Mon Feb 24 2014 16:15:46 GMT-0600 (CST)
</footer>
<script> prettyPrint(); </script>
<script src="scripts/linenumber.js"> </script>
</body>
</html>