我有一段代碼,用戶必須按0來靜音或1播放音樂片段的聲音。如果聲音靜音,圖像會變化,否則當音樂播放時。如何避免按鍵閃爍的圖像?
var audio = new Audio();
window.onload = function geluidMaken() {
audio.src = "../Geluiden/Achtergrond_Geluid.mp3";
audio.play();
audio.loop = true;
window.addEventListener("keypress", function geluidsKnoppen() {
var codeGeluid = event.which || event.keyCode;
if(codeGeluid == 48) {
var geluidAanKnop = new Image();
geluidAanKnop.src = "../Afbeeldingen/Sound_Button.png";
mijnObject.drawImage(geluidAanKnop, (canvas.width/2)-25, 850, geluidAanKnop.width, geluidAanKnop.height);
audio.muted = true;
}
else if(codeGeluid = 49) {
var geluidAfKnop = new Image();
geluidAfKnop.src = "../Afbeeldingen/Mute_Button.png";
mijnObject.drawImage(geluidAfKnop, (canvas.width/2)-25, 850, geluidAfKnop.width, geluidAfKnop.height);
audio.muted = false;
}
});
}
我還有其他的代碼,我使我的所有其他職能
function tekenenObjecten() {
mijnObject.clearRect(0, 0, canvas.width, canvas.height);
makenBalkKort();
makenBal();
makenMuur();
makenBord();
圖像不是在畫布上可見的,但是當我點擊按鍵0或1的圖像直接出現並消失。如何確保圖像保留在畫布上並在按下0或1時進行更改?
是否有其他的代碼來操縱'mijnObject'? – Sumurai8
@ Sumurai8是的,我嘗試製作一個比如BrickBreaker的遊戲,我的槳,球和磚都是用mijnObject製作的:)。這很容易呈現我的函數「geluidsKnoppen()」,但我不知道按鍵是否可行? – KevinN