mirror of
https://github.com/jiojciojsioe3/a3cjroijsiojiorj.git
synced 2024-11-15 15:31:51 +08:00
cd288d4fa4
- Registered users can customise the colour of their Don and it will appear for other players - Bug fixes: - Add lyrics checkbox to admin page - 2P shows above "creative" or "with lyrics" labels - Prevent accidental alt and menu keyboard presses from triggering browser menus - Fixed mouse hitboxes on difficulty selection - Clean cached sounds and lyrics when another song is loading - Fixed debug jumping to the top-left of the screen when hidden - Fixed server volume not being applied to songs
127 lines
2.6 KiB
JavaScript
127 lines
2.6 KiB
JavaScript
class CanvasCache{
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constructor(noSmoothing, w, h, scale){
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this.noSmoothing = noSmoothing
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if(w){
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this.resize(w, h, scale)
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}
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this.index = Number.MIN_SAFE_INTEGER
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}
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resize(w, h, scale){
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if(this.canvas){
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this.map.clear()
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}else{
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this.map = new Map()
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this.canvas = document.createElement("canvas")
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this.ctx = this.canvas.getContext("2d")
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if(this.noSmoothing){
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this.ctx.imageSmoothingEnabled = false
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}
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}
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this.scale = scale
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this.x = 0
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this.y = 0
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this.w = w
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this.h = h
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this.lastW = 0
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this.lastH = 0
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this.canvas.width = this.w * this.scale
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this.canvas.height = this.h * this.scale
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this.ctx.scale(this.scale, this.scale)
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}
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get(config, callback, setOnly){
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var img = this.map.get(config.id)
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if(img && setOnly || !img && !callback){
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return
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}
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var saved = false
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var index = this.index++
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if(!img){
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var w = config.w
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var h = config.h
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this.x += this.lastW + (this.lastW ? 1 : 0)
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if(this.x + w > this.w){
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this.x = 0
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this.y += this.lastH + 1
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}
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if(this.y + h > this.h){
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var clear = true
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var oldest = {index: index}
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this.map.forEach((oldImg, id) => {
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if(oldImg.index < oldest.index){
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oldest.id = id
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oldest.index = oldImg.index
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}
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})
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var oldImg = this.map.get(oldest.id)
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this.map.delete(oldest.id)
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img = {
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x: oldImg.x,
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y: oldImg.y,
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w: w,
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h: h
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}
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}else{
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var clear = false
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this.lastW = w
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this.lastH = Math.max(this.lastH, h)
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img = {
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x: this.x,
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y: this.y,
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w: w,
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h: h
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}
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}
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saved = true
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this.ctx.save()
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this.ctx.translate(img.x |0, img.y |0)
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if(clear){
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this.ctx.clearRect(0, 0, (img.w |0) + 1, (img.h |0) + 1)
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}
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this.ctx.beginPath()
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this.ctx.rect(0, 0, img.w |0, img.h |0)
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this.ctx.clip()
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this.map.set(config.id, img)
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callback(this.ctx)
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}
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img.index = index
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if(setOnly){
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this.ctx.restore()
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return
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}
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var z = this.scale
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var sx = (img.x + (config.sx || 0)) * z |0
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var sy = (img.y + (config.sy || 0)) * z |0
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var sw = (config.sw || img.w) * z |0
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var sh = (config.sh || img.h) * z |0
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config.ctx.drawImage(this.canvas,
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sx, sy, sw, sh,
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config.x |0, config.y |0, config.w |0, config.h |0
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)
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if(saved){
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this.ctx.restore()
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}
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}
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set(config, callback){
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return this.get(config, callback, true)
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}
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clear(){
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this.x = 0
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this.y = 0
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this.lastW = 0
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this.lastH = 0
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this.map.clear()
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this.ctx.clearRect(0, 0, this.w, this.h)
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}
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clean(){
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if(!this.canvas){
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return
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}
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this.resize(1, 1, 1)
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delete this.map
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delete this.ctx
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delete this.canvas
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}
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}
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