Maf.js

A library for doin' maf innit

About

Maf.js implements many common useful functions that are not supported in the JavaScript Math library. Instead of adding methods to Math.prototype and risking potential conflicts with future implementations, let's create a Math library with those methods.

There's a mix of GLSL, HLSL, Unity and other libraries and languages.

Methods

• clamp( v, minVal, maxVal );
• step( edge, v );
• smoothstep( edge0, edge1, v );
• deg2Rad( degress ), toRadians( degress );
• rad2Deg( radians ), toDegrees( radians );
• clamp01( v );
• mix( x, y, a ), lerp( x, y, a );
• inverseMix( a, b, v ), inverseLerp( a, b, v );
• mixUnclamped( x, y, a ), lerpUnclamped( x, y, a ),
• fract( v );
• isPowerOfTwo( v );
• closestPowerOfTwo( v );
• nextPowerOfTwo( v );
• deltaAngle( a, b ), deltaAngleDeg( a, b ), deltaAngleRad( a, b );
• lerpAngle, lerpAngleDeg, lerpAngleRad;
• gammaToLinearSpace( v );
• linearToGammaSpace( v );
• map( from1, to1, from2, to2, v ), scale( from1, to1, from2, to2, v );
• latLonToCartesian( lat, lon );
• cartesianToLatLon( x, y, z );
• randomInRange( min, max );
• norm( v, minVal, maxVal );
• hash( n );
• noise2d( x, y );
• smoothMin( a, b, k );
• smoothMax( a, b, k );

Coming up (?)

• almostIdentity( x, m, n )
• impulse( k, x );
• cubicPulse( c, w, x );
• expStep( x, k, n );
• parabola( x, k );
• powerCurve( x, a, b );

Discarded

• smoothDamp / smoothDampAngle, smoothDampAngleDeg, smoothDampAngleRad; Can be done with basic functions and easing the time value
• easing functions: there's libraries for that (TweenMax, tween.js)
• perlin functions: there's ImprovedNoise.js

License

MIT licensed

Copyright (C) 2015 Jaume Sanchez Elias http://twitter.com/thespite

http://www.clicktorelease.com