Javascript 如何在主代码之前播放视频?
我正在使用Javascript 如何在主代码之前播放视频?,javascript,p5.js,Javascript,P5.js,我正在使用p5.js和p5.play为学校项目制作游戏,但我无法让setTimeout或setInterval工作,因此我无法在游戏开始前进行介绍性游戏 当基于时间的等待代码都不起作用时,我不知道怎么做。每当我尝试使用它们时,我要么得到一个黑屏,要么得到一个静止的图像 有人能帮忙吗?还有其他解决办法吗 我的代码如下所示: let sans; 让歌声; 让加斯特; 让玩家; 让playerImg; 让胃痛; 让桑辛; 盒子; 让第1箱; 让第二箱; 让第三箱; let mode=0; 让健康; 设
p5.js
和p5.play
为学校项目制作游戏,但我无法让setTimeout
或setInterval
工作,因此我无法在游戏开始前进行介绍性游戏
当基于时间的等待代码都不起作用时,我不知道怎么做。每当我尝试使用它们时,我要么得到一个黑屏,要么得到一个静止的图像
有人能帮忙吗?还有其他解决办法吗
我的代码如下所示:
let sans;
让歌声;
让加斯特;
让玩家;
让playerImg;
让胃痛;
让桑辛;
盒子;
让第1箱;
让第二箱;
让第三箱;
let mode=0;
让健康;
设hp=100;
让骨头;
让博内姆;
让爆炸机;
让爆炸声;
让我们介绍一下;
让我们结束;
让movingRight=false;
让左移=假;
设movingUp=false;
放下=错误;
让gamemode=true;
设方向=0;
设xpos=300;
设ypos=300;
设速度=3;
函数预加载(){
声音格式(“mp3”、“ogg”);
song=loadSound(“资产/调用”);
intro=loadVideo('assets/intro.mp4');
}
函数设置(){
createCanvas(600600);
模式=0;
//结束
end=createVideo(['assets/end.mp4','assets/end.webm']);
end.hide();
//介绍
intro=createVideo(['assets/intro.mp4','assets/intro.webm']);
介绍隐藏();
//盒子
//顶
box=createSprite(300300400,高度/60);
box.shapeColor=颜色(255);
框.setCollider('矩形',10,10,230,-100);
//底部
box1=createSprite(300500400,高度/60);
box1.shapeColor=颜色(255);
框1.setCollider('矩形',-10,-10,230,-100);
//框2
box2=createSprite(500400,宽度/60210);
box2.shapeColor=颜色(255);
框2.setCollider('矩形',0,0,-140,200);
//框3
box3=createSprite(100400,宽度/60210);
box3.shapeColor=颜色(255);
框3.setCollider('矩形',0,0,-140,200);
//桑
sans=createSprite(400160);
sansImg=loadImage('assets/sansC.gif');
sans.addImage('sans',sansImg);
sans.scale=0.70;
//加斯特
gaster=createSprite(180140);
gasterImg=loadImage('assets/g.gif');
gaster.addImage(“gaster”,gasterImg);
gaster.scale=1.3;
//玩家
player=createSprite(290350);
playerImg=loadImage('assets/kebab.png');
player.addImage('player',playerImg);
玩家比例-=0.30;
//骨头
bone=createSprite(100400);
boneImg=loadImage('assets/Sbone.png');
骨骼。添加图像('bone',boneImg);
骨固定速度(3,方向);
//健康酒吧
健康=createSprite(250530100,20);
health.shapeColor=color(255,255,0);
health.width=hp*3;
//---------------------------------------------------------------------------------------
}
//模式0
函数绘图(){
背景(0);
填充(255);
模式=0;
如果(模式==0){
文本大小(30);
文本(“按下鼠标键”,160、300);
}
//模式1
如果(模式==1){
图像(简介,-400,-190,宽*2.3,高*2.3);
游戏介绍();
setTimeout(changemode(),7000);
模式=2;
}
//模式2
如果(模式==2){
歌曲。游戏();
//碰撞
玩家。碰撞(方块);
player.collide(框1);
player.collide(框2);
player.collide(框3);
//更新移动字符
如果(向右移动){
player.position.x+=速度;
}
如果(向左移动){
player.position.x-=速度;
}
如果(移动){
player.position.y-=速度;
}
如果(向下移动){
player.position.y+=速度;
}
}
//模式3
如果(模式==3){
图像(结束、0、0、宽度、高度);
结束。玩();
宋。停();
drawSprites();
}
}
//-------------------------------------------------------------------'
功能鼠标按下(){
dmg(5);
health.width=hp*3;
如果(模式==0){
模式=1;
}
}
功能键按下(){
如果(键=='w'){
movingUp=true;
}
如果(键=='a'){
左移=真;
}
如果(键=='s'){
向下移动=正确;
}
如果(键=='d'){
movingRight=正确;
}
}
函数keyReleased(){
如果(键=='w'){
movingUp=false;
}
如果(键=='a'){
左移=假;
}
如果(键=='s'){
向下移动=错误;
}
如果(键=='d'){
movingRight=错误;
}
}
更改此设置间隔(changemode(),7000)代码>设置超时(changemode(),7000)代码>
否则它将每7秒运行一次
另外,使changemode()
函数可访问,它当前位于dmg(x)
let sans;
让歌声;
让加斯特;
让玩家;
让playerImg;
让胃痛;
让桑辛;
盒子;
让第1箱;
让第二箱;
让第三箱;
let mode=0;
让健康;
设hp=100;
让骨头;
让博内姆;
让爆炸机;
让爆炸声;
让我们介绍一下;
让我们结束;
让movingRight=false;
让左移=假;
设movingUp=false;
放下=错误;
让gamemode=true;
设方向=0;
设xpos=300;
设ypos=300;
设速度=3;
函数预加载(){
声音格式(“mp3”、“ogg”);
song=loadSound(“资产/调用”);
intro=loadVideo('assets/intro.mp4');
}
函数设置(){
createCanvas(600600);
模式=0;
//结束
end=createVideo(['assets/end.mp4','assets/end.webm']);
end.hide();
//介绍
intro=createVideo(['assets/intro.mp4','assets/intro.webm']);
介绍隐藏();
//盒子
//顶
box=createSprite(300300400,高度/60);
box.shapeColor=颜色(255);
框.setCollider('矩形',10,10,230,-100);
//底部
box1=createSprite(300500400,高度/60);
box1.shapeColor=颜色(255);
框1.setCollider('矩形',-10,-10,230,-100);
//框2
box2=createSprite(500400,宽度/60210);
box2.shapeColor=颜色(255);
框2.setCollider('矩形',0,0,-140,200);
//框3
box3=createSprite(100400,宽度/60210);
box3.shapeColor=颜色(255);
框3.setCollider('矩形',0,0,-140,200);
//桑
sans=createSprite(400160);
sansImg=loadImage('assets/sansC.gif');
sans.addImage('sans',sansImg);
sans.scale=0.70;
//加斯特
gaster=createSprite(180140);
gasterImg=loadImage('assets/g.gif');
gaster.addImage(“gaster”,gasterImg);
let sans;
let song;
let gaster;
let player;
let playerImg;
let gasterImg;
let sansImg;
let box;
let box1;
let box2;
let box3;
let mode = 0;
let health;
let hp = 100;
let bone;
let boneImg;
let blaster;
let blasterImg;
let intro;
let end;
let movingRight = false;
let movingLeft = false;
let movingUp = false;
let movingDown = false;
let gamemode = true;
let direction = 0;
let xpos = 300;
let ypos = 300;
let speed = 3;
function preload() {
soundFormats('mp3', 'ogg');
song = loadSound('assets/call');
intro = loadVideo('assets/intro.mp4');
}
function setup() {
createCanvas(600, 600);
mode = 0;
//end
end = createVideo(['assets/end.mp4', 'assets/end.webm']);
end.hide();
//intro
intro = createVideo(['assets/intro.mp4', 'assets/intro.webm']);
intro.hide();
//box
//top
box = createSprite(300, 300, 400, height/60);
box.shapeColor = color(255);
box.setCollider('rectangle', 10, 10, 230, -100);
//bottom
box1 = createSprite(300, 500, 400, height/60);
box1.shapeColor = color(255);
box1.setCollider('rectangle', -10, -10, 230, -100);
//box2
box2 = createSprite(500, 400, width/60, 210);
box2.shapeColor = color(255);
box2.setCollider('rectangle', 0, 0, -140, 200);
//box3
box3= createSprite(100, 400, width/60, 210);
box3.shapeColor = color(255);
box3.setCollider('rectangle', 0, 0, -140, 200);
//sans
sans = createSprite(400, 160);
sansImg = loadImage('assets/sansC.gif');
sans.addImage('sans', sansImg);
sans.scale = 0.70;
//gaster
gaster = createSprite(180, 140);
gasterImg = loadImage('assets/g.gif');
gaster.addImage('gaster', gasterImg);
gaster.scale = 1.3;
//player
player = createSprite(290, 350);
playerImg = loadImage('assets/kebab.png');
player.addImage('player', playerImg);
player.scale-=0.30;
//bone
bone = createSprite(100, 400);
boneImg = loadImage('assets/Sbone.png');
bone.addImage('bone', boneImg);
bone.setSpeed(3,direction);
//healthbar
health = createSprite(250, 530, 100, 20);
health.shapeColor = color(255, 255, 0);
health.width = hp*3;
//---------------------------------------------------------------------------------------
}
//mode 0
function draw() {
background(0);
fill(255);
mode = 0;
if (mode == 0) {
textSize(30);
text("Press mouse button", 160, 300);
}
//mode 1
if (mode == 1){
image(intro, -400, -190, width*2.3, height*2.3);
intro.play();
setTimeout(changemode(), 7000);
mode = 2;
}
//mode 2
if (mode == 2) {
song.play();
//collision
player.collide(box);
player.collide(box1);
player.collide(box2);
player.collide(box3);
// update moving character
if (movingRight) {
player.position.x += speed;
}
if (movingLeft) {
player.position.x -= speed;
}
if (movingUp) {
player.position.y -= speed;
}
if (movingDown) {
player.position.y += speed;
}
}
//mode 3
if (mode == 3) {
image(end, 0, 0, width, height);
end.play();
song.stop();
drawSprites();
}
}
//-------------------------------------------------------------------'
function mousePressed () {
dmg(5);
health.width = hp*3;
if (mode == 0){
mode = 1;
}
}
function keyPressed() {
if (key == 'w') {
movingUp = true;
}
if (key == 'a') {
movingLeft = true;
}
if (key == 's') {
movingDown = true;
}
if (key == 'd') {
movingRight = true;
}
}
function keyReleased() {
if (key == 'w') {
movingUp = false;
}
if (key == 'a') {
movingLeft = false;
}
if (key == 's') {
movingDown = false;
}
if (key == 'd') {
movingRight = false;
}
}
//dmg
function dmg(x) {
hp -= x;
if (hp <= 0) {
mode = 3;
}
}
function changemode() {
if (mode == 1) {
mode = 2;
}
if (mode == 2) {
song.play();
}
if (mode == 3) {
song.stop();
}
}