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Diffstat (limited to 'assets/javascripts/util.js')
| -rw-r--r-- | assets/javascripts/util.js | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/assets/javascripts/util.js b/assets/javascripts/util.js deleted file mode 100644 index 64bda4d..0000000 --- a/assets/javascripts/util.js +++ /dev/null @@ -1,173 +0,0 @@ -if (window.$) { - $.fn.int = function(){ return parseInt($(this).val(),10) } - $.fn.float = function(){ return parseFloat($(this).val()) } - $.fn.string = function(){ return trim($(this).val()) } - $.fn.enable = function() { return $(this).attr("disabled",null) } - $.fn.disable = function() { return $(this).attr("disabled","disabled") } -} - -function trim(s){ return s.replace(/^\s+/,"").replace(/\s+$/,"") } - -var E = Math.E -var PI = Math.PI -var PHI = (1+Math.sqrt(5))/2 -var TWO_PI = PI*2 -var HALF_PI = PI/2 -var LN10 = Math.LN10 -function clamp(n,a,b){ return n<a?a:n<b?n:b } -function norm(n,a,b){ return (n-a) / (b-a) } -function lerp(n,a,b){ return (b-a)*n+a } -function mix(n,a,b){ return a*(1-n)+b*n } -function ceil(n){ return Math.ceil(n) } -function floor(n){ return Math.floor(n) } -function round(n){ return Math.round(n) } -function quantize(n,a){ return round(n / a) * a } -function max(a,b){ return Math.max(a,b) } -function min(a,b){ return Math.min(a,b) } -function abs(n){ return Math.abs(n) } -function sign(n){ return Math.abs(n)/n } -function pow(n,b) { return Math.pow(n,b) } -function exp(n) { return Math.exp(n) } -function log(n){ return Math.log(n) } -function ln(n){ return Math.log(n)/LN10 } -function sqrt(n) { return Math.sqrt(n) } -function cos(n){ return Math.cos(n) } -function sin(n){ return Math.sin(n) } -function tan(n){ return Math.tan(n) } -function acos(n){ return Math.cos(n) } -function asin(n){ return Math.sin(n) } -function atan(n){ return Math.atan(n) } -function atan2(a,b){ return Math.atan2(a,b) } -function sec(n){ return 1/cos(n) } -function csc(n){ return 1/sin(n) } -function cot(n){ return 1/tan(n) } -function cosp(n){ return (1+Math.cos(n))/2 } // cos^2 -function sinp(n){ return (1+Math.sin(n))/2 } -function random(){ return Math.random() } -function rand(n){ return (Math.random()*n) } -function randint(n){ return rand(n)|0 } -function randrange(a,b){ return a + rand(b-a) } -function choice(a){ return a[randint(a.length)] } -function deg(n){ return n*180/PI } -function rad(n){ return n*PI/180 } -function xor(a,b){ a=!!a; b=!!b; return (a||b) && !(a&&b) } -function mod(n,m){ return n-(m * floor(n/m)) } -function dist(x0,y0,x1,y1){ return sqrt(pow(x1-x0,2)+pow(y1-y0,2)) } -function angle(x0,y0,x1,y1){ return atan2(y1-y0,x1-x0) } -function avg(m,n,a){ return (m*(a-1)+n)/a } -function noop(){} - -function pixel(x,y){ return 4*(mod(y,actual_h)*actual_w+mod(x,actual_w)) } -function rgbpixel(d,x,y){ - var p = pixel(~~x,~~y) - r = d[p] - g = d[p+1] - b = d[p+2] - a = d[p+3] -} -function fit(d,x,y){ rgbpixel(d,x*actual_w/w,y*actual_h/h) } - -function step(a, b){ - return (b >= a) + 0 - // ^^ bool -> int -} - -function julestep (a,b,n) { - return clamp(norm(n,a,b), 0.0, 1.0); -} - -// hermite curve apparently -function smoothstep(min,max,n){ - var t = clamp((n - min) / (max - min), 0.0, 1.0); - return t * t * (3.0 - 2.0 * t) -} - -function shuffle(a){ - for (var i = a.length; i > 0; i--){ - var r = randint(i) - var swap = a[i-1] - a[i-1] = a[r] - a[r] = swap - } - return a -} -function reverse(a){ - var reversed = [] - for (var i = 0, _len = a.length-1; i <= _len; i++){ - reversed[i] = a[_len-i] - } - return reversed -} -function deinterlace(a){ - var odd = [], even = [] - for (var i = 0, _len = a.length; i < _len; i++) { - if (i % 2) even.push(a[i]) - else odd.push(a[i]) - } - return [even, odd] -} -function weave(a){ - var aa = deinterlace(a) - var b = [] - aa[0].forEach(function(el){ b.push(el) }) - reverse(aa[1]).forEach(function(el){ b.push(el) }) - return b -} -function range(m,n,s){ - var a = [] - s = s || 1 - for (var i = m; i <= n; i += s) { - a.push(i) - } - return a -} - -var guid_syllables = "iz az ez or iv ex baz el lo lum ot un no".split(" ") -var guid_n = 0 -function guid(n){ - var len = guid_syllables.length - return ((++guid_n*(len-1)*(~~log(guid_n))).toString(len)).split("").map(function(s){ - return guid_syllables[parseInt(s, len) % len--] - }).join("") -} - -function defaults (dest, src) { - dest = dest || {} - for (var i in src) { - dest[i] = typeof dest[i] == 'undefined' ? src[i] : dest[i] - } - return dest -} - -// Change straight quotes to curly and double hyphens to em-dashes. -function smarten(a) { - a = a.replace(/(^|[-\u2014\s(\["])'/g, "$1\u2018"); // opening singles - a = a.replace(/'/g, "\u2019"); // closing singles & apostrophes - a = a.replace(/(^|[-\u2014/\[(\u2018\s])"/g, "$1\u201c"); // opening doubles - a = a.replace(/"/g, "\u201d"); // closing doubles - a = a.replace(/--/g, "\u2014"); // em-dashes - return a -}; - - -function pairs(h){ - var a = [] - for (var i in h) { - if(h.hasOwnProperty(i)) { - a.push([i, h[i]]) - } - } - return a -} -function invert_hash (h) { - var k = {} - for (var i in h) { if (h.hasOwnProperty(i)) k[h[i]] = i } - return k -} - -function bitcount(v) { - v = v - ((v >>> 1) & 0x55555555); - v = (v & 0x33333333) + ((v >>> 2) & 0x33333333); - return ((v + (v >>> 4) & 0xF0F0F0F) * 0x1010101) >>> 24; -} - |