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Refactor/index load #43

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Refactor/index load #43

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799fc3c
refactor index.js and update load.js
johnwildauer Apr 24, 2021
94d104f
remove inherits from dependencies
johnwildauer Apr 24, 2021
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209 changes: 106 additions & 103 deletions index.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
var createLayout = require('layout-bmfont-text')
var inherits = require('inherits')
var createIndices = require('quad-indices')

var vertices = require('./lib/vertices')
Expand All @@ -10,113 +9,117 @@ var Base = THREE.BufferGeometry
module.exports = function createTextGeometry (opt) {
return new TextGeometry(opt)
}

function TextGeometry (opt) {
Base.call(this)

if (typeof opt === 'string') {
opt = { text: opt }
}

// use these as default values for any subsequent
// calls to update()
this._opt = Object.assign({}, opt)

// also do an initial setup...
if (opt) this.update(opt)
}

inherits(TextGeometry, Base)

TextGeometry.prototype.update = function (opt) {
if (typeof opt === 'string') {
opt = { text: opt }
}

// use constructor defaults
opt = Object.assign({}, this._opt, opt)

if (!opt.font) {
throw new TypeError('must specify a { font } in options')
class TextGeometry extends Base {
constructor (opt) {
super()

this.type = 'TextGeometry'

if (typeof opt === 'string') {
this.parameters = {
opt: opt
}
}
// use these as default values for any subsequent
// calls to update()
this._opt = Object.assign({}, opt)

// also do an initial setup...
if (opt) this.update(opt)
}

this.layout = createLayout(opt)

// get vec2 texcoords
var flipY = opt.flipY !== false

// the desired BMFont data
var font = opt.font

// determine texture size from font file
var texWidth = font.common.scaleW
var texHeight = font.common.scaleH

// get visible glyphs
var glyphs = this.layout.glyphs.filter(function (glyph) {
var bitmap = glyph.data
return bitmap.width * bitmap.height > 0
})

// provide visible glyphs for convenience
this.visibleGlyphs = glyphs

// get common vertex data
var positions = vertices.positions(glyphs)
var uvs = vertices.uvs(glyphs, texWidth, texHeight, flipY)
var indices = createIndices([], {
clockwise: true,
type: 'uint16',
count: glyphs.length
})

// update vertex data
this.setIndex(indices)
this.setAttribute('position', new THREE.BufferAttribute(positions, 2))
this.setAttribute('uv', new THREE.BufferAttribute(uvs, 2))

// update multipage data
if (!opt.multipage && 'page' in this.attributes) {
// disable multipage rendering
this.removeAttribute('page')
} else if (opt.multipage) {
// enable multipage rendering
var pages = vertices.pages(glyphs)
this.setAttribute('page', new THREE.BufferAttribute(pages, 1))
}
}

TextGeometry.prototype.computeBoundingSphere = function () {
if (this.boundingSphere === null) {
this.boundingSphere = new THREE.Sphere()
update (opt) {
if (typeof opt === 'string') {
opt = { text: opt }
}

// use constructor defaults
opt = Object.assign({}, this._opt, opt)

if (!opt.font) {
throw new TypeError('must specify a { font } in options')
}

this.layout = createLayout(opt)

// get vec2 texcoords
var flipY = opt.flipY !== false

// the desired BMFont data
var font = opt.font

// determine texture size from font file
var texWidth = font.common.scaleW
var texHeight = font.common.scaleH

// get visible glyphs
var glyphs = this.layout.glyphs.filter(function (glyph) {
var bitmap = glyph.data
return bitmap.width * bitmap.height > 0
})

// provide visible glyphs for convenience
this.visibleGlyphs = glyphs

// get common vertex data
var positions = vertices.positions(glyphs)
var uvs = vertices.uvs(glyphs, texWidth, texHeight, flipY)
var indices = createIndices([], {
clockwise: true,
type: 'uint16',
count: glyphs.length
})

// update vertex data
this.setIndex(indices)
this.setAttribute('position', new THREE.BufferAttribute(positions, 2))
this.setAttribute('uv', new THREE.BufferAttribute(uvs, 2))

// update multipage data
if (!opt.multipage && 'page' in this.attributes) {
// disable multipage rendering
this.removeAttribute('page')
} else if (opt.multipage) {
// enable multipage rendering
var pages = vertices.pages(glyphs)
this.setAttribute('page', new THREE.BufferAttribute(pages, 1))
}
}

var positions = this.attributes.position.array
var itemSize = this.attributes.position.itemSize
if (!positions || !itemSize || positions.length < 2) {
this.boundingSphere.radius = 0
this.boundingSphere.center.set(0, 0, 0)
return
}
utils.computeSphere(positions, this.boundingSphere)
if (isNaN(this.boundingSphere.radius)) {
console.error('THREE.BufferGeometry.computeBoundingSphere(): ' +
'Computed radius is NaN. The ' +
'"position" attribute is likely to have NaN values.')
}
}

TextGeometry.prototype.computeBoundingBox = function () {
if (this.boundingBox === null) {
this.boundingBox = new THREE.Box3()
computeBoundingSphere () {
if (this.boundingSphere === null) {
this.boundingSphere = new THREE.Sphere()
}

var positions = this.attributes.position.array
var itemSize = this.attributes.position.itemSize
if (!positions || !itemSize || positions.length < 2) {
this.boundingSphere.radius = 0
this.boundingSphere.center.set(0, 0, 0)
return
}
utils.computeSphere(positions, this.boundingSphere)
if (isNaN(this.boundingSphere.radius)) {
console.error(
`THREE.BufferGeometry.computeBoundingSphere():
Computed radius is NaN. The
"position" attribute is likely to have NaN values.`
)
}
}

var bbox = this.boundingBox
var positions = this.attributes.position.array
var itemSize = this.attributes.position.itemSize
if (!positions || !itemSize || positions.length < 2) {
bbox.makeEmpty()
return
computeBoundingBox () {
if (this.boundingBox === null) {
this.boundingBox = new THREE.Box3()
}

var bbox = this.boundingBox
var positions = this.attributes.position.array
var itemSize = this.attributes.position.itemSize
if (!positions || !itemSize || positions.length < 2) {
bbox.makeEmpty()
return
}
utils.computeBox(positions, bbox)
}
utils.computeBox(positions, bbox)
}
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