javascript - 如何从 javascript 的 for 循环中调用函数?
问题描述
let ti11 = document.createElement('input')
function hkRender() {
window.game.mapSetup = {};
mapContext = map.getContext('2d')
// Styling the canvas background (works)
mapContext.fillStyle = ti9.value
game.mapSetup.loadMapColor = function(){
ti9.value = localStorage.getItem('mmc')
mapContext.fillStyle = ti9.value
}
window.game.mapSetup.changeMapColor = function(mapColor){
let mmc = localStorage.getItem('mmc')
mapContext.fillStyle = mmc
localStorage.setItem('mmc', mapColor)
}
ti9.className = "jscolor {onFineChange:'window.game.mapSetup.changeMapColor(this.toHEXString())'}"
ti9.value = localStorage.getItem('ti9val')
ti9.onchange = function(){
localStorage.setItem('ti9val', ti9.value)
}
game.mapSetup.loadMapColor()
// Styling player text in canvas (doesnt work)
for (let player in players) {
let plr = players[player]
// player name
mapContext.fillStyle = ti11.value
game.mapSetup.loadPlayerNameColor = function(){
ti11.value = localStorage.getItem('mmn')
mapContext.fillStyle = ti11.value
}
window.game.mapSetup.changePlayerNameColor = function(playerNameColor){
let mmn = localStorage.getItem('mmn')
mapContext.fillStyle = mmn
localStorage.setItem('mmc', playerNameColor)
}
}
ti11.className = "jscolor {onFineChange:'window.game.mapSetup.changePlayerNameColor(this.toHEXString())'}"
ti11.value = localStorage.getItem('ti11val')
ti11.onchange = function(){
localStorage.setItem('ti11val', ti11.value)
}
game.mapSetup.loadPlayerNameColor()
}
我想为//player name中定义的属性mapContext.fillStyle设置样式,但是在调用该函数进行样式设置时,它适用于地图背景的 mapContext.FillStyle 而不是名称。我如何区分这两个相似的属性?
解决方案
在循环上方定义函数:
let ti11 = document.createElement('input')
function changeColour(playerNameColor, mapContext){
let mmn = localStorage.getItem('mmn')
mapContext.fillStyle = mmn
localStorage.setItem('mmc', playerNameColor)
}
function render(){
window.mapSetup = {}
for (let player in players) {
let plr = players[player]
// Draw name
let name = plr.name
if (!name) return
mapContext.fillStyle = ti11.value
game.mapSetup.loadPlayerNameColor = function(){
ti11.value = localStorage.getItem('mmn')
mapContext.fillStyle = ti11.value
}
window.game.mapSetup.changePlayerNameColor = function(playerNameColor, mapContext){
changeColour(playerNameColor, mapContext);
}
}
ti11.className = "jscolor {onFineChange:'window.game.mapSetup.changePlayerNameColor(this.toHEXString())'}"
ti11.style.width = '60px';
ti11.style.position = 'absolute'
ti11.style.left = '10px'
ti11.style.top = '305px'
ti11.value = localStorage.getItem('ti11val')
ti11.onchange = function(){
localStorage.setItem('ti11val', ti11.value)
}
game.mapSetup.loadPlayerNameColor()
}
或者:
let ti11 = document.createElement('input')
function changeColour(playerNameColor, mapContext){
let mmn = localStorage.getItem('mmn')
mapContext.fillStyle = mmn
localStorage.setItem('mmc', playerNameColor)
}
function render(){
window.mapSetup = {}
for (let player in players) {
let plr = players[player]
// Draw name
let name = plr.name
if (!name) return
mapContext.fillStyle = ti11.value
game.mapSetup.loadPlayerNameColor = function(){
ti11.value = localStorage.getItem('mmn')
mapContext.fillStyle = ti11.value
}
window.game.mapSetup.changePlayerNameColor = changeColour(playerNameColor, mapContext);
}
ti11.className = "jscolor {onFineChange:'window.game.mapSetup.changePlayerNameColor(this.toHEXString())'}"
ti11.style.width = '60px';
ti11.style.position = 'absolute'
ti11.style.left = '10px'
ti11.style.top = '305px'
ti11.value = localStorage.getItem('ti11val')
ti11.onchange = function(){
localStorage.setItem('ti11val', ti11.value)
}
game.mapSetup.loadPlayerNameColor()
}
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