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Linting with "test"

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This commit is contained in:
joshbuddy 2017-06-12 18:39:14 -07:00
parent e32a19b954
commit c5a8acc12d
6 changed files with 219 additions and 211 deletions
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11
circle.yml Normal file
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@ -0,0 +1,11 @@
dependencies:
pre:
- sudo apt-get install libgif-dev
machine:
node:
version: 6.7.0
test:
override:
- npm run lint

4
js/constants/colors.js
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@ -7,10 +7,10 @@ const bg = {
green: '#63D6A3', green: '#63D6A3',
blue: '#358EFF', blue: '#358EFF',
salmon: '#FF9B7A', salmon: '#FF9B7A',
coral: '#F96854', coral: '#F96854'
} }
module.exports = { module.exports = {
head: head, head: head,
bg: bg bg: bg
}; }

72
js/fox.js
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@ -1,95 +1,91 @@
const Chance = require('chance'); const Chance = require('chance')
const colors = require('./constants/colors.js'); const colors = require('./constants/colors.js')
const hsl = function (h, s, l) { const hsl = function (h, s, l) {
return "hsl(" + h + "," + s + "%, " + l + "%)"; return 'hsl(' + h + ',' + s + '%, ' + l + '%)'
} }
const Fox = function (IMG_WIDTH, IMG_HEIGHT, seed) { const Fox = function (IMG_WIDTH, IMG_HEIGHT, seed) {
if (seed) { const chance = seed ? new Chance(seed) : new Chance()
chance = new Chance(seed);
} else {
chance = new Chance();
}
// origin: head top left corner // origin: head top left corner
const kappa = chance.floating({min: 0.2, max: 0.45}) const kappa = chance.floating({min: 0.2, max: 0.45})
const headColor = (function () { const headColor = (function () {
const level = chance.floating({min: 0, max: 1}); const level = chance.floating({min: 0, max: 1})
const result = []; const result = []
const min = colors.head.brick; const min = colors.head.brick
const max = colors.head.yellow; const max = colors.head.yellow
for (let i=0; i<min.length; i++) { for (let i = 0; i < min.length; i++) {
result.push(min[i] + (max[i] - min[i]) * level) result.push(min[i] + (max[i] - min[i]) * level)
} }
return hsl.apply(null, result) return hsl.apply(null, result)
}) () })()
const head = { const head = {
width: 0.6 * IMG_WIDTH, width: 0.6 * IMG_WIDTH,
height: 0.6 * IMG_HEIGHT, height: 0.6 * IMG_HEIGHT,
kappa: kappa, kappa: kappa,
color: headColor, color: headColor
} }
const origin = {x: IMG_WIDTH / 2 - head.width / 2, y: 0.5 * IMG_HEIGHT - head.height / 2}; const origin = {x: IMG_WIDTH / 2 - head.width / 2, y: 0.5 * IMG_HEIGHT - head.height / 2}
const ears = (function (origin, headWidth, headHeight, headColor) { const ears = (function (origin, headWidth, headHeight, headColor) {
const offsetX = chance.floating({min: 0.17 * headWidth, max: 0.2 * headWidth}); const offsetX = chance.floating({min: 0.17 * headWidth, max: 0.2 * headWidth})
const angle = chance.floating({min: 0.05 * Math.PI, max: 0.2 * Math.PI}); const angle = chance.floating({min: 0.05 * Math.PI, max: 0.2 * Math.PI})
return { return {
color: headColor, color: headColor,
kappa: 0.9 * kappa, kappa: 0.9 * kappa,
left: { left: {
x: origin.x + (headWidth/2) - offsetX, x: origin.x + (headWidth / 2) - offsetX,
y: origin.y + (0.15 * headHeight), y: origin.y + (0.15 * headHeight),
angle: angle, angle: angle,
width: 0.4 * headWidth, width: 0.4 * headWidth,
height: 0.8 * headHeight height: 0.8 * headHeight
}, },
right: { right: {
x: origin.x + (headWidth/2) + offsetX, x: origin.x + (headWidth / 2) + offsetX,
y: origin.y + (0.15 * headHeight), y: origin.y + (0.15 * headHeight),
angle: -angle, angle: -angle,
width: 0.4 * headWidth, width: 0.4 * headWidth,
height: 0.8 * headHeight height: 0.8 * headHeight
} }
}; }
}(origin, head.width, head.height, head.color)); }(origin, head.width, head.height, head.color))
const eyes = (function (origin, headWidth, headHeight) { const eyes = (function (origin, headWidth, headHeight) {
// TODO: color // TODO: color
const offsetY = chance.floating({min: -0.05 * headHeight, max: -0.025 * headHeight}); const offsetY = chance.floating({min: -0.05 * headHeight, max: -0.025 * headHeight})
const offsetX = chance.floating({min: 0.13 * headWidth, max: 0.25 * headWidth}); const offsetX = chance.floating({min: 0.13 * headWidth, max: 0.25 * headWidth})
const eyeHeight = chance.floating({min: 0.08 * headHeight, max: 0.13 * headHeight}); const eyeHeight = chance.floating({min: 0.08 * headHeight, max: 0.13 * headHeight})
return { return {
height: eyeHeight, height: eyeHeight,
width: eyeHeight/2, width: eyeHeight / 2,
style: 'ellipse', style: 'ellipse',
// style: chance.pickone(['ellipse', 'smiley']), // style: chance.pickone(['ellipse', 'smiley']),
left: { left: {
x: origin.x + (headWidth/2) - offsetX, x: origin.x + (headWidth / 2) - offsetX,
y: origin.y + (headHeight/2) + offsetY y: origin.y + (headHeight / 2) + offsetY
}, },
right: { right: {
x: origin.x + (headWidth/2) + offsetX, x: origin.x + (headWidth / 2) + offsetX,
y: origin.y + (headHeight/2) + offsetY y: origin.y + (headHeight / 2) + offsetY
} }
} }
}(origin, head.width, head.height)); }(origin, head.width, head.height))
const nose = { const nose = {
x: origin.x + (head.width/2), x: origin.x + (head.width / 2),
y: (eyes.left.y + chance.floating({min: 0.2, max: 0.4}) * (origin.y + head.height - eyes.left.y)), y: (eyes.left.y + chance.floating({min: 0.2, max: 0.4}) * (origin.y + head.height - eyes.left.y)),
width: chance.floating({min: 0.03, max: 0.04}) * head.width, width: chance.floating({min: 0.03, max: 0.04}) * head.width,
height: chance.floating({min: 0.03, max: 0.04}) * head.width height: chance.floating({min: 0.03, max: 0.04}) * head.width
} }
const mouth = { const mouth = {
x: origin.x + (head.width/2), x: origin.x + (head.width / 2),
y: (nose.y + chance.floating({min: 0.2, max: 0.35}) * (origin.y + head.height - nose.y)), y: (nose.y + chance.floating({min: 0.2, max: 0.35}) * (origin.y + head.height - nose.y)),
width: chance.floating({min: 0.08, max: 0.15}) * head.width, width: chance.floating({min: 0.08, max: 0.15}) * head.width,
height: chance.floating({min: 0.03, max: 0.06}) * head.width, height: chance.floating({min: 0.03, max: 0.06}) * head.width,
@ -100,20 +96,20 @@ const Fox = function (IMG_WIDTH, IMG_HEIGHT, seed) {
width: chance.floating({min: 0.5 * IMG_WIDTH, max: IMG_WIDTH}), width: chance.floating({min: 0.5 * IMG_WIDTH, max: IMG_WIDTH}),
height: chance.floating({min: 1.7 * (IMG_HEIGHT - eyes.left.y), max: 1.85 * (IMG_HEIGHT - eyes.left.y)}) height: chance.floating({min: 1.7 * (IMG_HEIGHT - eyes.left.y), max: 1.85 * (IMG_HEIGHT - eyes.left.y)})
} }
head.mask = mask; head.mask = mask
return { return {
canvas: { canvas: {
height: IMG_HEIGHT, height: IMG_HEIGHT,
width: IMG_WIDTH, width: IMG_WIDTH,
color: chance.pickone(Object.keys(colors.bg).map(function (key) {return colors.bg[key];})) color: chance.pickone(Object.keys(colors.bg).map(function (key) { return colors.bg[key] }))
}, },
head: head, head: head,
ears: ears, ears: ears,
eyes: eyes, eyes: eyes,
nose: nose, nose: nose,
mouth: mouth mouth: mouth
}; }
}; }
module.exports = Fox; module.exports = Fox

229
js/render-fox.js
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@ -1,151 +1,150 @@
const renderFox = function (canvas, opts) { const renderFox = function (canvas, opts) {
const width = opts.canvas.width; const width = opts.canvas.width
const height = opts.canvas.height; const height = opts.canvas.height
const ctx = canvas.getContext('2d'); const ctx = canvas.getContext('2d')
ctx.fillStyle = opts.canvas.color; ctx.fillStyle = opts.canvas.color
ctx.fillRect(0, 0, width, height); ctx.fillRect(0, 0, width, height)
renderEars(ctx, opts.ears); renderEars(ctx, opts.ears)
renderHead(ctx, opts.head); renderHead(ctx, opts.head)
renderEyes(ctx, opts.eyes); renderEyes(ctx, opts.eyes)
renderNose(ctx, opts.nose); renderNose(ctx, opts.nose)
renderMouth(ctx, opts.mouth); renderMouth(ctx, opts.mouth)
shift_canvas(ctx, width, height, 0, 0.06 * height); shiftCanvas(ctx, width, height, 0, 0.06 * height)
};
function shift_canvas(ctx, w, h, dx, dy) {
const topImage = ctx.getImageData(0, 0, w, h);
const bottomImage = ctx.getImageData(0, h - dy, w, h);
ctx.clearRect(0, 0, w, h);
ctx.putImageData(bottomImage, 0, 0);
ctx.putImageData(topImage, dx, dy);
} }
function renderHead(ctx, opts) { function shiftCanvas (ctx, w, h, dx, dy) {
ctx.save(); const topImage = ctx.getImageData(0, 0, w, h)
ctx.translate(ctx.canvas.width/2, ctx.canvas.height/2); const bottomImage = ctx.getImageData(0, h - dy, w, h)
ctx.rotate(Math.PI / 4);
drawEllipseByCenter(ctx, 0, 0, opts.width, opts.height, opts.color, null, opts.kappa); ctx.clearRect(0, 0, w, h)
ctx.restore(); ctx.putImageData(bottomImage, 0, 0)
ctx.clip(); ctx.putImageData(topImage, dx, dy)
drawEllipseByCenter(ctx, ctx.canvas.width / 2, ctx.canvas.height, opts.mask.width, opts.mask.height, '#fff', '#fff', 0.5);
} }
function renderEars(ctx, opts) { function renderHead (ctx, opts) {
ctx.save()
ctx.translate(ctx.canvas.width / 2, ctx.canvas.height / 2)
ctx.rotate(Math.PI / 4)
drawEllipseByCenter(ctx, 0, 0, opts.width, opts.height, opts.color, null, opts.kappa)
ctx.restore()
ctx.clip()
drawEllipseByCenter(ctx, ctx.canvas.width / 2, ctx.canvas.height, opts.mask.width, opts.mask.height, '#fff', '#fff', 0.5)
}
function renderEars (ctx, opts) {
const offset = { const offset = {
x: ctx.canvas.width/2, x: ctx.canvas.width / 2,
y: ctx.canvas.height/2 y: ctx.canvas.height / 2
} }
ctx.save(); ctx.save()
ctx.translate(offset.x, offset.y); ctx.translate(offset.x, offset.y)
ctx.rotate(-opts.left.angle); ctx.rotate(-opts.left.angle)
drawEllipseByCenter(ctx, opts.left.x - offset.x, opts.left.y - offset.y, opts.left.width, opts.left.height, opts.color, null, opts.kappa); drawEllipseByCenter(ctx, opts.left.x - offset.x, opts.left.y - offset.y, opts.left.width, opts.left.height, opts.color, null, opts.kappa)
ctx.restore(); ctx.restore()
ctx.save(); ctx.save()
ctx.translate(offset.x, offset.y); ctx.translate(offset.x, offset.y)
ctx.rotate(-opts.right.angle); ctx.rotate(-opts.right.angle)
drawEllipseByCenter(ctx, opts.right.x - offset.x, opts.right.y - offset.y, opts.right.width, opts.right.height, opts.color, null, opts.kappa); drawEllipseByCenter(ctx, opts.right.x - offset.x, opts.right.y - offset.y, opts.right.width, opts.right.height, opts.color, null, opts.kappa)
ctx.restore(); ctx.restore()
} }
function renderEyes(ctx, opts) { function renderEyes (ctx, opts) {
switch (opts.style) { switch (opts.style) {
case "ellipse": case 'ellipse':
drawEllipseByCenter(ctx, opts.left.x, opts.left.y, opts.width, opts.height, "black", null, 0.5); drawEllipseByCenter(ctx, opts.left.x, opts.left.y, opts.width, opts.height, 'black', null, 0.5)
drawEllipseByCenter(ctx, opts.right.x, opts.right.y, opts.width, opts.height, "black", null, 0.5); drawEllipseByCenter(ctx, opts.right.x, opts.right.y, opts.width, opts.height, 'black', null, 0.5)
break; break
case "smiley": case 'smiley':
ctx.strokeStyle = "black"; ctx.strokeStyle = 'black'
ctx.beginPath(); ctx.beginPath()
ctx.moveTo(opts.left.x - opts.width, opts.left.y + opts.height); ctx.moveTo(opts.left.x - opts.width, opts.left.y + opts.height)
ctx.bezierCurveTo(opts.left.x - opts.width, opts.left.y + opts.height, opts.left.x, opts.left.y, opts.left.x + opts.width, opts.left.y + opts.height); ctx.bezierCurveTo(opts.left.x - opts.width, opts.left.y + opts.height, opts.left.x, opts.left.y, opts.left.x + opts.width, opts.left.y + opts.height)
ctx.lineWidth = 2; ctx.lineWidth = 2
ctx.stroke(); ctx.stroke()
ctx.closePath(); ctx.closePath()
ctx.beginPath(); ctx.beginPath()
ctx.moveTo(opts.right.x - opts.width, opts.right.y + opts.height); ctx.moveTo(opts.right.x - opts.width, opts.right.y + opts.height)
ctx.bezierCurveTo(opts.right.x - opts.width, opts.right.y + opts.height, opts.right.x, opts.right.y, opts.right.x + opts.width, opts.right.y + opts.height); ctx.bezierCurveTo(opts.right.x - opts.width, opts.right.y + opts.height, opts.right.x, opts.right.y, opts.right.x + opts.width, opts.right.y + opts.height)
ctx.lineWidth = 2; ctx.lineWidth = 2
ctx.stroke(); ctx.stroke()
ctx.closePath(); ctx.closePath()
break; break
case "none": case 'none':
break; break
} }
} }
function renderNose(ctx, opts) { function renderNose (ctx, opts) {
ctx.strokeStyle = 'black'
ctx.strokeStyle = "black"; ctx.beginPath()
ctx.beginPath(); ctx.moveTo(opts.x - opts.width / 2, opts.y - opts.height / 2)
ctx.moveTo(opts.x - opts.width/2, opts.y - opts.height/2); ctx.bezierCurveTo(opts.x - opts.width / 2, opts.y - opts.height / 2, opts.x, opts.y - opts.height, opts.x + opts.width / 2, opts.y - opts.height / 2)
ctx.bezierCurveTo(opts.x - opts.width/2, opts.y - opts.height/2, opts.x, opts.y - opts.height, opts.x + opts.width/2, opts.y - opts.height/2); ctx.bezierCurveTo(opts.x + opts.width / 2, opts.y - opts.height / 2, opts.x + opts.width / 2, opts.y + opts.height / 2, opts.x, opts.y + opts.height / 2)
ctx.bezierCurveTo(opts.x + opts.width/2, opts.y - opts.height/2, opts.x + opts.width/2, opts.y + opts.height/2, opts.x, opts.y + opts.height/2); ctx.bezierCurveTo(opts.x, opts.y + opts.height / 2, opts.x - opts.width / 2, opts.y + opts.height / 2, opts.x - opts.width / 2, opts.y - opts.height / 2)
ctx.bezierCurveTo(opts.x, opts.y + opts.height/2, opts.x - opts.width/2, opts.y + opts.height/2, opts.x - opts.width/2, opts.y - opts.height/2); ctx.fillStyle = 'black'
ctx.fillStyle = "black"; ctx.fill()
ctx.fill(); ctx.stroke()
ctx.stroke();
} }
function renderMouth(ctx, opts) { function renderMouth (ctx, opts) {
ctx.strokeStyle = "black"; ctx.strokeStyle = 'black'
ctx.lineWidth = 0.01 * ctx.canvas.width; ctx.lineWidth = 0.01 * ctx.canvas.width
ctx.beginPath(); ctx.beginPath()
switch (opts.style) { switch (opts.style) {
case "smirk": case 'smirk':
ctx.moveTo(opts.x - opts.width/2, opts.y - opts.height/2); ctx.moveTo(opts.x - opts.width / 2, opts.y - opts.height / 2)
ctx.bezierCurveTo(opts.x - opts.width/2, opts.y - opts.height/2, ctx.bezierCurveTo(opts.x - opts.width / 2, opts.y - opts.height / 2,
opts.x - opts.width/2, opts.y + opts.height/2, opts.x - opts.width / 2, opts.y + opts.height / 2,
opts.x + opts.width/2, opts.y opts.x + opts.width / 2, opts.y
) )
break; break
case "cat": case 'cat':
ctx.moveTo(opts.x - opts.width/2, opts.y + opts.height/2); ctx.moveTo(opts.x - opts.width / 2, opts.y + opts.height / 2)
ctx.bezierCurveTo(opts.x - opts.width/2, opts.y + opts.height/2, ctx.bezierCurveTo(opts.x - opts.width / 2, opts.y + opts.height / 2,
opts.x, opts.y + opts.height/2, opts.x, opts.y + opts.height / 2,
opts.x, opts.y - opts.height/2 opts.x, opts.y - opts.height / 2
) )
ctx.bezierCurveTo( ctx.bezierCurveTo(
opts.x, opts.y - opts.height/2, opts.x, opts.y - opts.height / 2,
opts.x, opts.y + opts.height/2, opts.x, opts.y + opts.height / 2,
opts.x + opts.width/2, opts.y + opts.height/2 opts.x + opts.width / 2, opts.y + opts.height / 2
) )
break; break
} }
ctx.stroke(); ctx.stroke()
} }
function drawEllipseByCenter(ctx, cx, cy, w, h, color, fillColor, kappa) { function drawEllipseByCenter (ctx, cx, cy, w, h, color, fillColor, kappa) {
drawEllipse(ctx, cx - w/2.0, cy - h/2.0, w, h, color, fillColor, kappa); drawEllipse(ctx, cx - w / 2.0, cy - h / 2.0, w, h, color, fillColor, kappa)
} }
function drawEllipse(ctx, x, y, w, h, color, fillColor, kappa=0.3) { function drawEllipse (ctx, x, y, w, h, color, fillColor, kappa = 0.3) {
const ox = (w / 2) * kappa; // control point offset horizontal const ox = (w / 2) * kappa // control point offset horizontal
const oy = (h / 2) * kappa; // control point offset vertical const oy = (h / 2) * kappa // control point offset vertical
const xe = x + w; // x-end const xe = x + w // x-end
const ye = y + h; // y-end const ye = y + h // y-end
const xm = x + w / 2; // x-middle const xm = x + w / 2 // x-middle
const ym = y + h / 2; // y-middle const ym = y + h / 2 // y-middle
if (color) { if (color) {
ctx.strokeStyle = color; ctx.strokeStyle = color
} }
ctx.beginPath(); ctx.beginPath()
ctx.moveTo(x, ym); ctx.moveTo(x, ym)
ctx.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y); ctx.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y)
ctx.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym); ctx.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym)
ctx.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye); ctx.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye)
ctx.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym); ctx.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym)
fillColor = fillColor || color; fillColor = fillColor || color
if (fillColor) { if (fillColor) {
ctx.fillStyle = fillColor; ctx.fillStyle = fillColor
ctx.fill(); ctx.fill()
} }
ctx.stroke(); ctx.stroke()
} }
module.exports = renderFox; module.exports = renderFox

14
run.js
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@ -1,13 +1,13 @@
const cluster = require('express-cluster'); const cluster = require('express-cluster')
const app = require('./server.js'); const app = require('./server.js')
const activePort = process.env.PORT || 3000; const activePort = process.env.PORT || 3000
cluster((worker) => { cluster((worker) => {
app.listen(activePort, () => { app.listen(activePort, () => {
console.log('worker ' + worker.id + ' is listening on port ' + activePort); console.log('worker ' + worker.id + ' is listening on port ' + activePort)
}); })
}, { }, {
'respawn': true, // workers will restart on failure 'respawn': true, // workers will restart on failure
'verbose': true, // logs what happens to console 'verbose': true // logs what happens to console
}); })

60
server.js
View file

@ -1,42 +1,44 @@
/* eslint no-unused-vars: ["error", { "varsIgnorePattern": "newrelic" }] */
try { try {
const newrelic = require('newrelic'); const newrelic = require('newrelic')
} catch (e) { } catch (e) {
console.error("WARNING unable to load newrelic") console.error('WARNING unable to load newrelic')
} }
const express = require('express'); const express = require('express')
const uuid = require('uuid/v4'); const uuid = require('uuid/v4')
const sanitize = require('sanitize-filename'); const sanitize = require('sanitize-filename')
const Canvas = require('canvas'); const Canvas = require('canvas')
const Fox = require('./js/fox.js'); const Fox = require('./js/fox.js')
const renderFox = require('./js/render-fox.js'); const renderFox = require('./js/render-fox.js')
function composeImage(width, height, seed) { function composeImage (width, height, seed) {
seed = seed || uuid(); seed = seed || uuid()
const fox = Fox(width, height, seed); const fox = Fox(width, height, seed)
const canvas = new Canvas(width, height); const canvas = new Canvas(width, height)
renderFox(canvas, fox); renderFox(canvas, fox)
return canvas; return canvas
}; };
const cacheTimeout = 60 * 60 * 24 * 30; const cacheTimeout = 60 * 60 * 24 * 30
const app = express(); const app = express()
app.get('/healthcheck', (req, res) => { app.get('/healthcheck', (req, res) => {
res.status(200).end(); res.status(200).end()
}); })
app.get('/:width/:seed', (req, res) => { app.get('/:width/:seed', (req, res) => {
let width = parseInt(req.params.width) || 400; let width = parseInt(req.params.width) || 400
if (width > 400) width = 400; if (width > 400) width = 400
const seed = sanitize(req.params.seed) || uuid(); const seed = sanitize(req.params.seed) || uuid()
const canvas = composeImage(width, width, seed); const canvas = composeImage(width, width, seed)
const buffer = canvas.toBuffer(); const buffer = canvas.toBuffer()
res.set('Cache-Control', 'max-age=' + cacheTimeout); res.set('Cache-Control', 'max-age=' + cacheTimeout)
res.set('Content-length', buffer.length); res.set('Content-length', buffer.length)
res.type('png'); res.type('png')
res.end(buffer, 'binary'); res.end(buffer, 'binary')
}); })
module.exports = app; module.exports = app