# import Scroller from './scroller' $id = (id) -> document.getElementById id $class = (className) -> document.getElementsByClassName className $tag = (tag) -> document.getElementsByTagName tag $query = (query) -> document.querySelector query $queryAll = (query) -> document.querySelectorAll query $create = (node) -> document.createElement node ajax = (method, url, data, callback, error=null, type=null) -> xhttp = new XMLHttpRequest() xhttp.onreadystatechange = (e) -> if e.target.readyState is 4 if e.target.status is 200 callback(e.target.response) else if error error(e.target) # # Timeout # setTimeout -> # if e.target.readyState isnt 4 # do xhttp.abort # # error(e.target) # return # # , 10000 return xhttp.open method, url, true if type xhttp.responseType = type xhttp.send data return capitalize = (str) -> str.charAt(0).toUpperCase() + str.slice(1) timeAgo = (bump) -> #- Get current time now = (new Date).getTime() #- Get difference in seconds difference = (now - bump) / 1000 #- Time helper variables year = 60 * 60 * 24 * 365 month = 60 * 60 * 24 * 30 week = 60 * 60 * 24 * 7 day = 60 * 60 * 24 hour = 60 * 60 minute = 60 #- In years if difference >= year total = Math.floor difference / year unit = 'year' #- In months else if difference >= month total = Math.floor difference / month unit = 'month' #- In weeks else if difference >= week total = Math.floor difference / week unit = 'week' #- In days else if difference >= day total = Math.floor difference / day unit = 'day' #- In hours else if difference >= hour total = Math.floor difference / hour unit = 'hour' #- In minutes else if difference >= minute total = Math.floor difference / minute unit = 'minute' #- In seconds else total = Math.floor difference unit = 'second' #- Make plural if more than one unit if total > 1 unit += 's' "#{total} #{unit}" hexToRgb = (hex) -> if hex.startsWith '#' hex = hex.substring 1 bigint = parseInt hex, 16 r = (bigint >> 16) & 255 g = (bigint >> 8) & 255 b = bigint & 255 return {r, g, b} analyzeAudio = (player, fft) -> sum = 0 player.analyzer.getByteFrequencyData(player.dataArray); for i in [0...player.bufferLength] sum += player.dataArray[i] # Average frequency sum / fft angle2rad = (angle) -> angle*Math.PI/180 drawRoundedPolygon = (ctx, points, roundness) -> # Points as vector asVector = (p, pp, v) -> v.x = pp.x - p.x v.y = pp.y - p.y v.len = Math.sqrt v.x * v.x + v.y * v.y v.nx = v.x / v.len v.ny = v.y / v.len v.ang = Math.atan2 v.ny, v.nx return radius = roundness v1 = {} v2 = {} len = points.length p1 = points[len - 1] i = 0 while i < len p2 = points[i % len] p3 = points[(i + 1) % len] asVector p2, p1, v1 asVector p2, p3, v2 sinA = v1.nx * v2.ny - (v1.ny * v2.nx) sinA90 = v1.nx * v2.nx - (v1.ny * -v2.ny) angle = Math.asin(sinA) radDirection = 1 drawDirection = false if sinA90 < 0 if angle < 0 angle = Math.PI + angle else angle = Math.PI - angle radDirection = -1 drawDirection = true else if angle > 0 radDirection = -1 drawDirection = true if p2.radius != undefined radius = p2.radius else radius = roundness halfAngle = angle / 2 lenOut = Math.abs Math.cos(halfAngle) * radius / Math.sin(halfAngle) if lenOut > Math.min v1.len / 2, v2.len / 2 lenOut = Math.min v1.len / 2, v2.len / 2 cRadius = Math.abs lenOut * Math.sin(halfAngle) / Math.cos(halfAngle) else cRadius = radius x = p2.x + v2.nx * lenOut y = p2.y + v2.ny * lenOut x += -v2.ny * cRadius * radDirection y += v2.nx * cRadius * radDirection ctx.arc x, y, cRadius, v1.ang + Math.PI / 2 * radDirection, v2.ang - (Math.PI / 2 * radDirection), drawDirection p1 = p2 p2 = p3 i++ ctx.closePath() return easeInOutQuad = (time, start, change, duration) -> time /= duration / 2 if time < 1 return change / 2 * time * time + start time-- -change / 2 * (time * (time - 2) - 1) + start # Need to use module.exports because pug doesn't have es6 import module.exports = { $id $class $tag $query $queryAll $create ajax capitalize timeAgo hexToRgb analyzeAudio angle2rad drawRoundedPolygon easeInOutQuad }
