Add font rendering
This commit is contained in:
parent
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GPG Key ID:
1688DA83D222D0B5
198
assets/fonts/arial.fnt
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198
assets/fonts/arial.fnt
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info face="Arial" size=82 bold=0 italic=0 charset="" unicode=0 stretchH=100 smooth=1 aa=1 padding=3,3,3,3 spacing=-2,-2
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common lineHeight=100 base=75 scaleW=512 scaleH=512 pages=1 packed=0
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page id=0 file="arial.png"
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chars count=97
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kernings count=96
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kerning first=121 second=46 amount=-6
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kerning first=84 second=45 amount=-5
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kerning first=86 second=44 amount=-8
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kerning first=114 second=46 amount=-5
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kerning first=114 second=44 amount=-5
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kerning first=49 second=49 amount=-6
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kerning first=89 second=65 amount=-6
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kerning first=84 second=79 amount=-1
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kerning first=65 second=84 amount=-6
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kerning first=76 second=86 amount=-6
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kerning first=65 second=87 amount=-3
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kerning first=89 second=112 amount=-6
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kerning first=84 second=119 amount=-5
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kerning first=76 second=121 amount=-3
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kerning first=82 second=84 amount=-1
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kerning first=89 second=58 amount=-5
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kerning first=87 second=65 amount=-3
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kerning first=87 second=97 amount=-3
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kerning first=87 second=59 amount=-1
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kerning first=82 second=87 amount=-1
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kerning first=118 second=46 amount=-6
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kerning first=65 second=89 amount=-6
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kerning first=65 second=86 amount=-6
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kerning first=80 second=44 amount=-11
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kerning first=86 second=46 amount=-8
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kerning first=84 second=105 amount=-3
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kerning first=84 second=97 amount=-9
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kerning first=84 second=114 amount=-3
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kerning first=80 second=65 amount=-6
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kerning first=84 second=58 amount=-9
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kerning first=86 second=97 amount=-6
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kerning first=76 second=84 amount=-6
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kerning first=89 second=59 amount=-5
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kerning first=70 second=44 amount=-9
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kerning first=80 second=46 amount=-11
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kerning first=89 second=101 amount=-8
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kerning first=65 second=119 amount=-1
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kerning first=87 second=121 amount=-1
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kerning first=76 second=87 amount=-6
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kerning first=86 second=45 amount=-5
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kerning first=84 second=117 amount=-3
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kerning first=89 second=118 amount=-5
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kerning first=65 second=32 amount=-5
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kerning first=86 second=65 amount=-6
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kerning first=84 second=111 amount=-9
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kerning first=89 second=45 amount=-8
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kerning first=65 second=121 amount=-1
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kerning first=87 second=58 amount=-1
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kerning first=82 second=89 amount=-1
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kerning first=89 second=44 amount=-11
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kerning first=32 second=84 amount=-1
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kerning first=87 second=111 amount=-1
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kerning first=84 second=59 amount=-9
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kerning first=84 second=101 amount=-9
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kerning first=86 second=59 amount=-3
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kerning first=89 second=46 amount=-11
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kerning first=87 second=101 amount=-1
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kerning first=32 second=65 amount=-5
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kerning first=84 second=44 amount=-9
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kerning first=70 second=65 amount=-5
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kerning first=86 second=117 amount=-3
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kerning first=84 second=115 amount=-9
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kerning first=84 second=65 amount=-6
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kerning first=89 second=32 amount=-1
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kerning first=87 second=44 amount=-5
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kerning first=89 second=111 amount=-8
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kerning first=89 second=97 amount=-6
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kerning first=119 second=46 amount=-5
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kerning first=87 second=46 amount=-5
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kerning first=82 second=86 amount=-1
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kerning first=121 second=44 amount=-6
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kerning first=84 second=46 amount=-9
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kerning first=80 second=32 amount=-1
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kerning first=87 second=114 amount=-1
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kerning first=119 second=44 amount=-5
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kerning first=76 second=32 amount=-3
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kerning first=84 second=121 amount=-5
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kerning first=86 second=121 amount=-3
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kerning first=70 second=46 amount=-9
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kerning first=87 second=45 amount=-1
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kerning first=118 second=44 amount=-6
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kerning first=87 second=117 amount=-1
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kerning first=86 second=105 amount=-1
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BIN
assets/fonts/arial.png
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BIN
assets/fonts/arial.png
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After Width: | Height: | Size: 41 KiB |
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assets/shaders/font.fs
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assets/shaders/font.fs
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precision mediump float;
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varying vec2 uv;
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uniform vec3 uColor;
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uniform sampler2D texture0;
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void main() {
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gl_FragColor = vec4(uColor, texture2D(texture0, uv).a);
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}
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assets/shaders/font.vs
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assets/shaders/font.vs
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precision mediump float;
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attribute vec2 aVertexPosition;
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attribute vec2 aTexCoords;
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varying vec2 uv;
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uniform mat4 uTransformation;
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void main() {
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gl_Position = uTransformation * vec4(aVertexPosition, 0.0, 1.0);
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uv = aTexCoords;
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}
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src/engine/gui/font.js
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src/engine/gui/font.js
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import Resource from '../resource'
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import Screen from '../screen'
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import { Mesh } from '../mesh'
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import { Texture } from '../mesh/material'
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import { Node2D } from './'
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import { mat4 } from 'gl-matrix'
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const aspectRatio = Screen.width / Screen.height
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const PAD_TOP = 0
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const PAD_LEFT = 1
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const PAD_BOTTOM = 2
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|
const PAD_RIGHT = 3
|
||||||
|
const DESIRED_PADDING = 3
|
||||||
|
|
||||||
|
const SPLITTER = ' '
|
||||||
|
const NUMBER_SEPARATOR = ','
|
||||||
|
|
||||||
|
const LINE_HEIGHT = 0.03
|
||||||
|
const SPACE_ASCII = 32
|
||||||
|
const NL_ASCII = 10
|
||||||
|
|
||||||
|
class Character {
|
||||||
|
constructor (id, xTexCoord, yTexCoord, xTexSize, yTexSize,
|
||||||
|
xOffset, yOffset, sizeX, sizeY, xAdvance) {
|
||||||
|
this.id = id
|
||||||
|
this.xTexCoord = xTexCoord
|
||||||
|
this.yTexCoord = yTexCoord
|
||||||
|
this.xTexSize = xTexSize
|
||||||
|
this.yTexSize = yTexSize
|
||||||
|
this.xOffset = xOffset
|
||||||
|
this.yOffset = yOffset
|
||||||
|
this.sizeX = sizeX
|
||||||
|
this.sizeY = sizeY
|
||||||
|
this.xMaxTexCoord = xTexSize + xTexCoord
|
||||||
|
this.yMaxTexCoord = yTexSize + yTexCoord
|
||||||
|
this.xAdvance = xAdvance
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class Word {
|
||||||
|
constructor (fontSize) {
|
||||||
|
this.fontSize = fontSize
|
||||||
|
this.characters = []
|
||||||
|
this.width = 0
|
||||||
|
}
|
||||||
|
|
||||||
|
addCharacter (char) {
|
||||||
|
this.characters.push(char)
|
||||||
|
this.width += char.xAdvance * this.fontSize
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class Line {
|
||||||
|
constructor (spaceWidth, fontSize, maxLength) {
|
||||||
|
this.spaceSize = spaceWidth * fontSize
|
||||||
|
this.maxLength = maxLength
|
||||||
|
this.words = []
|
||||||
|
this.lineLength = 0
|
||||||
|
}
|
||||||
|
|
||||||
|
attemptToAddWord (word) {
|
||||||
|
let additionalLength = word.width
|
||||||
|
additionalLength += this.words.length ? this.spaceSize : 0
|
||||||
|
if (this.lineLength + additionalLength <= this.maxLength) {
|
||||||
|
this.words.push(word)
|
||||||
|
this.lineLength += additionalLength
|
||||||
|
return true
|
||||||
|
}
|
||||||
|
return false
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class FontFile {
|
||||||
|
constructor (name) {
|
||||||
|
this.name = name
|
||||||
|
this.values = {}
|
||||||
|
this.metadata = {}
|
||||||
|
}
|
||||||
|
|
||||||
|
getValue (vals, key) {
|
||||||
|
return parseInt(vals[key])
|
||||||
|
}
|
||||||
|
|
||||||
|
getValues (vals, key) {
|
||||||
|
let nums = vals[key].split(NUMBER_SEPARATOR)
|
||||||
|
let result = []
|
||||||
|
for (let i in nums) {
|
||||||
|
result.push(parseInt(nums[i]))
|
||||||
|
}
|
||||||
|
return result
|
||||||
|
}
|
||||||
|
|
||||||
|
readValues (data) {
|
||||||
|
let lines = data.split('\n')
|
||||||
|
for (let i in lines) {
|
||||||
|
let line = lines[i]
|
||||||
|
let lineSplit = line.split(SPLITTER)
|
||||||
|
let lineValues = {}
|
||||||
|
|
||||||
|
for (let j in lineSplit) {
|
||||||
|
let valuePairs = lineSplit[j].split('=')
|
||||||
|
if (valuePairs.length === 2) {
|
||||||
|
let key = valuePairs[0]
|
||||||
|
let val = valuePairs[1]
|
||||||
|
lineValues[key] = val
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (lineSplit[0] === 'info') {
|
||||||
|
this.padding = this.getValues(lineValues, 'padding')
|
||||||
|
this.paddingWidth = this.padding[PAD_LEFT] + this.padding[PAD_RIGHT]
|
||||||
|
this.paddingHeight = this.padding[PAD_TOP] + this.padding[PAD_BOTTOM]
|
||||||
|
} else if (lineSplit[0] === 'common') {
|
||||||
|
let lineHeightPixels = this.getValue(lineValues, 'lineHeight') - this.paddingHeight
|
||||||
|
this.vertPerPixelSize = LINE_HEIGHT / lineHeightPixels
|
||||||
|
this.horizPixelSize = this.vertPerPixelSize / aspectRatio
|
||||||
|
} else if (lineSplit[0] === 'char') {
|
||||||
|
let c = this.loadCharacter(lineValues, this.getValue(this.values, 'scaleW'))
|
||||||
|
if (c) this.metadata[c.id] = c
|
||||||
|
continue
|
||||||
|
} else if (lineSplit[0] === 'kernings' || lineSplit[0] === 'kerning' || lineSplit[0] === 'chars') {
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
for (let j in lineValues) {
|
||||||
|
this.values[j] = lineValues[j]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
loadCharacter (values, imageSize) {
|
||||||
|
let id = this.getValue(values, 'id')
|
||||||
|
if (id === SPACE_ASCII) {
|
||||||
|
this.spaceWidth = (this.getValue(values, 'xadvance') - this.paddingWidth) * this.horizPixelSize
|
||||||
|
return null
|
||||||
|
}
|
||||||
|
let xTex = (this.getValue(values, 'x') + (this.padding[PAD_LEFT] - DESIRED_PADDING)) / imageSize
|
||||||
|
let yTex = (this.getValue(values, 'y') + (this.padding[PAD_TOP] - DESIRED_PADDING)) / imageSize
|
||||||
|
let width = this.getValue(values, 'width') - (this.paddingWidth - (2 * DESIRED_PADDING))
|
||||||
|
let height = this.getValue(values, 'height') - ((this.paddingHeight) - (2 * DESIRED_PADDING))
|
||||||
|
let quadWidth = width * this.horizPixelSize
|
||||||
|
let quadHeight = height * this.vertPerPixelSize
|
||||||
|
let xTexSize = width / imageSize
|
||||||
|
let yTexSize = height / imageSize
|
||||||
|
let xOff = (this.getValue(values, 'xoffset') + this.padding[PAD_LEFT] - DESIRED_PADDING) * this.horizPixelSize
|
||||||
|
let yOff = (this.getValue(values, 'yoffset') + (this.padding[PAD_TOP] - DESIRED_PADDING)) * this.vertPerPixelSize
|
||||||
|
let xAdvance = (this.getValue(values, 'xadvance') - this.paddingWidth) * this.horizPixelSize
|
||||||
|
return new Character(id, xTex, yTex, xTexSize, yTexSize, xOff, yOff, quadWidth, quadHeight, xAdvance)
|
||||||
|
}
|
||||||
|
|
||||||
|
getCharacter (ascii) {
|
||||||
|
return this.metadata[ascii]
|
||||||
|
}
|
||||||
|
|
||||||
|
static async fromFile (fontName) {
|
||||||
|
let load = await Resource.GET('/assets/fonts/' + fontName + '.fnt')
|
||||||
|
let file = new FontFile(fontName)
|
||||||
|
file.readValues(load)
|
||||||
|
console.log(file)
|
||||||
|
return file
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class Font {
|
||||||
|
constructor (name, metadata) {
|
||||||
|
this.name = name
|
||||||
|
this.metadata = metadata
|
||||||
|
this.texture = null
|
||||||
|
}
|
||||||
|
|
||||||
|
static async fromFile (name) {
|
||||||
|
let meta = await FontFile.fromFile(name)
|
||||||
|
return new Font(name, meta)
|
||||||
|
}
|
||||||
|
|
||||||
|
async loadTextures (gl) {
|
||||||
|
this.texture = await Texture.createTexture2D(gl, await Resource.loadImage('/assets/fonts/' + this.name + '.png'), false, gl.LINEAR)
|
||||||
|
}
|
||||||
|
|
||||||
|
createTextMesh (gl, text) {
|
||||||
|
let lines = this.createStructure(text)
|
||||||
|
let data = this.createQuadVertices(text, lines)
|
||||||
|
return Mesh.constructFromVerticesUVs(gl, data.vertices, data.textureCoords)
|
||||||
|
}
|
||||||
|
|
||||||
|
createStructure (text) {
|
||||||
|
let chars = text.asCharacters
|
||||||
|
let lines = []
|
||||||
|
let currentLine = new Line(this.metadata.spaceWidth, text.fontSize, text.lineLength)
|
||||||
|
let currentWord = new Word(text.fontSize)
|
||||||
|
for (let c in chars) {
|
||||||
|
let ascii = parseInt(chars[c])
|
||||||
|
if (ascii === SPACE_ASCII) {
|
||||||
|
let added = currentLine.attemptToAddWord(currentWord)
|
||||||
|
if (!added) {
|
||||||
|
lines.push(currentLine)
|
||||||
|
currentLine = new Line(this.metadata.spaceWidth, text.fontSize, text.lineLength)
|
||||||
|
currentLine.attemptToAddWord(currentWord)
|
||||||
|
}
|
||||||
|
currentWord = new Word(text.fontSize)
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ascii === NL_ASCII) {
|
||||||
|
let added = currentLine.attemptToAddWord(currentWord)
|
||||||
|
if (!added) {
|
||||||
|
lines.push(currentLine)
|
||||||
|
currentLine = new Line(this.metadata.spaceWidth, text.fontSize, text.lineLength)
|
||||||
|
currentLine.attemptToAddWord(currentWord)
|
||||||
|
}
|
||||||
|
lines.push(currentLine)
|
||||||
|
currentLine = new Line(this.metadata.spaceWidth, text.fontSize, text.lineLength)
|
||||||
|
currentWord = new Word(text.fontSize)
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
|
||||||
|
let character = this.metadata.getCharacter(ascii)
|
||||||
|
currentWord.addCharacter(character)
|
||||||
|
}
|
||||||
|
this.completeStructure(lines, currentLine, currentWord, text)
|
||||||
|
return lines
|
||||||
|
}
|
||||||
|
|
||||||
|
completeStructure (lines, currentLine, currentWord, text) {
|
||||||
|
let added = currentLine.attemptToAddWord(currentWord)
|
||||||
|
if (!added) {
|
||||||
|
lines.push(currentLine)
|
||||||
|
currentLine = new Line(this.metadata.spaceWidth, text.fontSize, text.lineLength)
|
||||||
|
currentLine.attemptToAddWord(currentWord)
|
||||||
|
}
|
||||||
|
lines.push(currentLine)
|
||||||
|
return lines
|
||||||
|
}
|
||||||
|
|
||||||
|
createQuadVertices (text, lines) {
|
||||||
|
text.lines = lines.length
|
||||||
|
let cursorX = 0
|
||||||
|
let cursorY = 0
|
||||||
|
let vertices = []
|
||||||
|
let textureCoords = []
|
||||||
|
for (let i in lines) {
|
||||||
|
let line = lines[i]
|
||||||
|
if (text.centered) {
|
||||||
|
cursorX = (line.maxLength - line.lineLength) / 2
|
||||||
|
}
|
||||||
|
for (let j in line.words) {
|
||||||
|
let word = line.words[j]
|
||||||
|
for (let k in word.characters) {
|
||||||
|
let letter = word.characters[k]
|
||||||
|
this.addVerticesForCharacter(cursorX, cursorY, letter, text.fontSize, vertices)
|
||||||
|
this.addTexCoords(textureCoords, letter.xTexCoord, letter.yTexCoord, letter.xMaxTexCoord, letter.yMaxTexCoord)
|
||||||
|
cursorX += letter.xAdvance * text.fontSize
|
||||||
|
}
|
||||||
|
cursorX += this.metadata.spaceWidth * text.fontSize
|
||||||
|
}
|
||||||
|
cursorX = 0
|
||||||
|
cursorY += LINE_HEIGHT * text.fontSize
|
||||||
|
}
|
||||||
|
return { vertices, textureCoords }
|
||||||
|
}
|
||||||
|
|
||||||
|
addVerticesForCharacter (cursorX, cursorY, character, fontSize, vertices) {
|
||||||
|
let x = cursorX + (character.xOffset * fontSize)
|
||||||
|
let y = cursorY + (character.yOffset * fontSize)
|
||||||
|
let maxX = x + (character.sizeX * fontSize)
|
||||||
|
let maxY = y + (character.sizeY * fontSize)
|
||||||
|
let properX = (2 * x) - 1
|
||||||
|
let properY = (-2 * y) + 1
|
||||||
|
let properMaxX = (2 * maxX) - 1
|
||||||
|
let properMaxY = (-2 * maxY) + 1
|
||||||
|
this.addVertices(vertices, properX, properY, properMaxX, properMaxY)
|
||||||
|
}
|
||||||
|
|
||||||
|
addVertices (vertices, x, y, maxX, maxY) {
|
||||||
|
vertices.push(x)
|
||||||
|
vertices.push(y)
|
||||||
|
vertices.push(x)
|
||||||
|
vertices.push(maxY)
|
||||||
|
vertices.push(maxX)
|
||||||
|
vertices.push(maxY)
|
||||||
|
vertices.push(maxX)
|
||||||
|
vertices.push(maxY)
|
||||||
|
vertices.push(maxX)
|
||||||
|
vertices.push(y)
|
||||||
|
vertices.push(x)
|
||||||
|
vertices.push(y)
|
||||||
|
}
|
||||||
|
|
||||||
|
addTexCoords (texCoords, x, y, maxX, maxY) {
|
||||||
|
texCoords.push(x)
|
||||||
|
texCoords.push(y)
|
||||||
|
texCoords.push(x)
|
||||||
|
texCoords.push(maxY)
|
||||||
|
texCoords.push(maxX)
|
||||||
|
texCoords.push(maxY)
|
||||||
|
texCoords.push(maxX)
|
||||||
|
texCoords.push(maxY)
|
||||||
|
texCoords.push(maxX)
|
||||||
|
texCoords.push(y)
|
||||||
|
texCoords.push(x)
|
||||||
|
texCoords.push(y)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class GUIText extends Node2D {
|
||||||
|
constructor (text, font, fontSize, pos, size, centered = false) {
|
||||||
|
super(pos, size)
|
||||||
|
this.text = text
|
||||||
|
this.fontSize = fontSize
|
||||||
|
this.font = font
|
||||||
|
this.centered = centered
|
||||||
|
this.color = [0.0, 0.0, 0.0]
|
||||||
|
}
|
||||||
|
|
||||||
|
updateTransform () {
|
||||||
|
let matrix = mat4.create()
|
||||||
|
mat4.translate(matrix, matrix, [this.pos[0], this.pos[2], 0.0])
|
||||||
|
if (this.rotation !== 0.0) {
|
||||||
|
mat4.rotate(matrix, matrix, this.rotation * Math.PI / 180, [0.0, 0.0, 1.0])
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add parent's transform to this
|
||||||
|
if (this.parent) {
|
||||||
|
mat4.mul(matrix, this.parent.transform, matrix)
|
||||||
|
}
|
||||||
|
|
||||||
|
// Set the matrix
|
||||||
|
this.transform = matrix
|
||||||
|
|
||||||
|
// Update children's transforms
|
||||||
|
for (let i in this.children) {
|
||||||
|
let child = this.children[i]
|
||||||
|
if (!(child instanceof Node2D)) continue
|
||||||
|
child.updateTransform()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
createMesh (gl) {
|
||||||
|
this.mesh = this.font.createTextMesh(gl, this)
|
||||||
|
}
|
||||||
|
|
||||||
|
get lineLength () {
|
||||||
|
return this.size[2]
|
||||||
|
}
|
||||||
|
|
||||||
|
get asCharacters () {
|
||||||
|
let chars = []
|
||||||
|
for (let i = 0; i < this.text.length; i++) {
|
||||||
|
chars.push(this.text.charCodeAt(i))
|
||||||
|
}
|
||||||
|
return chars
|
||||||
|
}
|
||||||
|
|
||||||
|
draw (gl, shader) {
|
||||||
|
const transformLocation = shader.getUniformLocation(gl, 'uTransformation')
|
||||||
|
const colorLocation = shader.getUniformLocation(gl, 'uColor')
|
||||||
|
gl.uniformMatrix4fv(transformLocation, false, this.transform)
|
||||||
|
gl.uniform3fv(colorLocation, this.color)
|
||||||
|
if (!this.mesh) this.createMesh(gl)
|
||||||
|
this.mesh.prepare(gl, shader)
|
||||||
|
this.mesh.draw(gl, shader)
|
||||||
|
this.mesh.postdraw(gl, shader)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
class FontRenderer {
|
||||||
|
discoverTextNodes (nodes) {
|
||||||
|
let textNodes = []
|
||||||
|
for (let i in nodes) {
|
||||||
|
let node = nodes[i]
|
||||||
|
if (!(node instanceof GUIText)) {
|
||||||
|
if (node.children) {
|
||||||
|
textNodes.concat(this.discoverTextNodes(node.children))
|
||||||
|
}
|
||||||
|
continue
|
||||||
|
}
|
||||||
|
textNodes.push(node)
|
||||||
|
}
|
||||||
|
return textNodes
|
||||||
|
}
|
||||||
|
|
||||||
|
draw (gl, nodes) {
|
||||||
|
let fontPairs = {}
|
||||||
|
let textNodes = this.discoverTextNodes(nodes)
|
||||||
|
for (let i in textNodes) {
|
||||||
|
let node = textNodes[i]
|
||||||
|
if (!this.fonts) {
|
||||||
|
this.fonts = {}
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!this.fonts[node.font.name]) {
|
||||||
|
this.fonts[node.font.name] = node.font
|
||||||
|
}
|
||||||
|
|
||||||
|
if (fontPairs[node.font.name]) {
|
||||||
|
fontPairs[node.font.name].push(node)
|
||||||
|
} else {
|
||||||
|
fontPairs[node.font.name] = [node]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
this.shader.use(gl)
|
||||||
|
gl.enable(gl.BLEND)
|
||||||
|
gl.blendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
|
||||||
|
gl.disable(gl.DEPTH_TEST)
|
||||||
|
for (let i in fontPairs) {
|
||||||
|
let texts = fontPairs[i]
|
||||||
|
let font = this.fonts[i]
|
||||||
|
gl.activeTexture(gl.TEXTURE0)
|
||||||
|
gl.bindTexture(font.texture.type, font.texture.id)
|
||||||
|
for (let j in texts) {
|
||||||
|
let text = texts[j]
|
||||||
|
text.draw(gl, this.shader)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
gl.enable(gl.DEPTH_TEST)
|
||||||
|
gl.disable(gl.BLEND)
|
||||||
|
}
|
||||||
|
|
||||||
|
async initialize (game) {
|
||||||
|
this.shader = await game.shaders.createShaderFromFiles(game.gl, 'font', false)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
export { FontRenderer, GUIText, Font }
|
||||||
@ -81,7 +81,7 @@ class Node2D {
|
|||||||
|
|
||||||
// Scaling
|
// Scaling
|
||||||
this.gscale = [1.0, 1.0]
|
this.gscale = [1.0, 1.0]
|
||||||
this.size = size || new Dim4(0.0, 0.0, 0.0, 0.0)
|
this.size = size || new Dim4(1.0, 0.0, 1.0, 0.0)
|
||||||
|
|
||||||
// Rotation in degrees
|
// Rotation in degrees
|
||||||
this.rotation = rotation || 0.0
|
this.rotation = rotation || 0.0
|
||||||
@ -214,4 +214,4 @@ class GUIRenderer {
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
export { Dim4, GUIRenderer, GUIImage }
|
export { Node2D, Dim4, GUIRenderer, GUIImage }
|
||||||
|
|||||||
@ -7,7 +7,7 @@ let gl
|
|||||||
|
|
||||||
class Engine {
|
class Engine {
|
||||||
constructor () {
|
constructor () {
|
||||||
this.screen = new Screen()
|
this.screen = Screen
|
||||||
this.input = new Input(this.screen.gl.canvas)
|
this.input = new Input(this.screen.gl.canvas)
|
||||||
this.shaders = new ShaderManager()
|
this.shaders = new ShaderManager()
|
||||||
this.running = false
|
this.running = false
|
||||||
|
|||||||
@ -50,6 +50,20 @@ class Mesh {
|
|||||||
return mesh
|
return mesh
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static constructFromVerticesUVs (gl, vertices, uvs, dimensions = 2) {
|
||||||
|
let pos = Mesh.loadToBuffer(gl, gl.ARRAY_BUFFER, new Float32Array(vertices))
|
||||||
|
let mesh = new Mesh()
|
||||||
|
mesh.uv = uvs
|
||||||
|
mesh.posBuffer = pos
|
||||||
|
mesh.vertices = vertices
|
||||||
|
mesh.vertexCount = vertices.length / dimensions
|
||||||
|
mesh.vertexLayout = dimensions
|
||||||
|
mesh.uvs = Mesh.loadToBuffer(gl, gl.ARRAY_BUFFER, new Float32Array(uvs))
|
||||||
|
gl.bindBuffer(gl.ARRAY_BUFFER, null)
|
||||||
|
|
||||||
|
return mesh
|
||||||
|
}
|
||||||
|
|
||||||
bindBuffers (gl, shader) {
|
bindBuffers (gl, shader) {
|
||||||
this._bufferCount = 1
|
this._bufferCount = 1
|
||||||
|
|
||||||
|
|||||||
@ -53,7 +53,7 @@ function smartGET (data) {
|
|||||||
}
|
}
|
||||||
|
|
||||||
function loadImage (url) {
|
function loadImage (url) {
|
||||||
url = '/assets/textures/' + url
|
if (url.indexOf('/') !== 0) url = '/assets/textures/' + url
|
||||||
|
|
||||||
// Ensure we don't load a texture multiple times
|
// Ensure we don't load a texture multiple times
|
||||||
if (imgCache[url]) return imgCache[url]
|
if (imgCache[url]) return imgCache[url]
|
||||||
|
|||||||
@ -30,6 +30,14 @@ class Screen {
|
|||||||
this._el.width = window.innerWidth
|
this._el.width = window.innerWidth
|
||||||
this._el.height = window.innerHeight
|
this._el.height = window.innerHeight
|
||||||
}
|
}
|
||||||
|
|
||||||
|
get width () {
|
||||||
|
return this._el.width
|
||||||
|
}
|
||||||
|
|
||||||
|
get height () {
|
||||||
|
return this._el.height
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
export default Screen
|
export default new Screen()
|
||||||
|
|||||||
12
src/index.js
12
src/index.js
@ -9,10 +9,12 @@ import { Skybox } from './engine/components/skybox'
|
|||||||
import { SimplexHeightMap } from './engine/components/terrain/heightmap'
|
import { SimplexHeightMap } from './engine/components/terrain/heightmap'
|
||||||
import { Material, Texture } from './engine/mesh/material'
|
import { Material, Texture } from './engine/mesh/material'
|
||||||
import { GUIRenderer, GUIImage, Dim4 } from './engine/gui'
|
import { GUIRenderer, GUIImage, Dim4 } from './engine/gui'
|
||||||
|
import { FontRenderer, GUIText, Font } from './engine/gui/font'
|
||||||
|
|
||||||
let game = new Engine()
|
let game = new Engine()
|
||||||
let env = new Environment()
|
let env = new Environment()
|
||||||
let gui = new GUIRenderer()
|
let gui = new GUIRenderer()
|
||||||
|
let fnt = new FontRenderer()
|
||||||
|
|
||||||
async function pipeline () {
|
async function pipeline () {
|
||||||
let entity = await loadMesh(game.gl, 'test')
|
let entity = await loadMesh(game.gl, 'test')
|
||||||
@ -22,12 +24,19 @@ async function pipeline () {
|
|||||||
|
|
||||||
entity.setRotation([0.0, 0.0, -90.0])
|
entity.setRotation([0.0, 0.0, -90.0])
|
||||||
|
|
||||||
|
let arialFont = await Font.fromFile('arial')
|
||||||
|
await arialFont.loadTextures(game.gl)
|
||||||
|
|
||||||
// Initialize GUI
|
// Initialize GUI
|
||||||
await gui.initialize(game)
|
await gui.initialize(game)
|
||||||
|
await fnt.initialize(game)
|
||||||
|
|
||||||
let itms = [
|
let itms = [
|
||||||
new GUIImage(await Texture.createTexture2D(game.gl, await Resource.loadImage('noisy.png'), false, game.gl.LINEAR),
|
new GUIImage(await Texture.createTexture2D(game.gl, await Resource.loadImage('noisy.png'), false, game.gl.LINEAR),
|
||||||
new Dim4(-0.9, 0.0, 0.9, 0.0), new Dim4(0.1, 0.0, 0.1, 0.0))
|
new Dim4(-0.9, 0.0, 0.9, 0.0), new Dim4(0.1, 0.0, 0.1, 0.0)),
|
||||||
|
new GUIText('this is example text!\nmulti line!', arialFont, 2, new Dim4(0.1, 0.0, -0.2, 0.0), new Dim4(1.0, 0.0, 0.3, 0.0), true)
|
||||||
]
|
]
|
||||||
|
itms[1].color = [1.0, 0.0, 0.2]
|
||||||
|
|
||||||
// Create a height map based on OpenSimplex noise
|
// Create a height map based on OpenSimplex noise
|
||||||
let hmap = new SimplexHeightMap(1, 1, 256, 50)
|
let hmap = new SimplexHeightMap(1, 1, 256, 50)
|
||||||
@ -106,6 +115,7 @@ async function pipeline () {
|
|||||||
|
|
||||||
game.addRenderFunction(function (gl) {
|
game.addRenderFunction(function (gl) {
|
||||||
gui.draw(gl, itms)
|
gui.draw(gl, itms)
|
||||||
|
fnt.draw(gl, itms)
|
||||||
})
|
})
|
||||||
|
|
||||||
game.startGameLoop()
|
game.startGameLoop()
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user