我想为珠宝设置动画(请参阅下面的代码和珠宝)。动画有效,但不幸的是,在动画结尾处显示了一张“白色图片”。我的意思是动画不流畅,图片消失了一秒钟(或一帧)。
图片:
杰森:
{
"frames": [
{
"name": "sprite-00",
"position": {
"x": 0,
"y": 0,
"w": 32,
"h": 32
}
},
{
"name": "sprite-01",
"position": {
"x": 32,
"y": 0,
"w": 32,
"h": 32
}
},
{
"name": "sprite-02",
"position": {
"x": 64,
"y": 0,
"w": 32,
"h": 32
}
},
{
"name": "sprite-03",
"position": {
"x": 96,
"y": 0,
"w": 32,
"h": 32
}
},
{
"name": "sprite-04",
"position": {
"x": 128,
"y": 0,
"w": 32,
"h": 32
}
},
{
"name": "sprite-05",
"position": {
"x": 160,
"y": 0,
"w": 32,
"h": 32
}
},
{
"name": "sprite-06",
"position": {
"x": 192,
"y": 0,
"w": 32,
"h": 32
}
},
{
"name": "sprite-07",
"position": {
"x": 224,
"y": 0,
"w": 32,
"h": 32
}
},
{
"name": "sprite-08",
"position": {
"x": 256,
"y": 0,
"w": 32,
"h": 32
}
}
]
}
Sprite.js:
function Sprite(animation, x, y, speed) {
this.speed = speed;
this.x = x;
this.y = y;
this.len = animation.length;
this.animation = animation;
this.index = 0;
this.show = function() {
let index = floor(this.index) % this.len;
image(this.animation[index], this.x, this.y);
}
this.animate = function() {
this.index = this.index + this.speed;
}
}
草图.js:
let spritesheetJewelGreen32;
let spritedataJewelGreen32;
let greenJewel = [];
let greenJ = [];
function preload() {
spritedataJewelGreen32 = loadJSON('green-jewel32.json');
spritesheetJewelGreen32 = loadImage('assets/crystals/crystal-32-green.png');
}
function setup() {
let frames = spritedataJewelGreen32.frames;
for (let i = 0; i < frames.length; i++) {
let pos = frames[i].position;
let img = spritesheetJewelGreen32.get(pos.x, pos.y, pos.w, pos.h);
greenJewel.push(img);
}
for (let i = 0; i < 5; i++) {
greenJ[i] = new Sprite(greenJewel, i * 100,100, 1);
}
}
function draw() {
for (let greenJs of greenJ) {
greenJs.show();
greenJs.animate();
}
}
我能做什么?
期待您的回答!
最佳答案
问题很简单。 Sprite 表包含 8 个图像,索引从 0 到 7。但是您在 JSON 中有 9 个条目,索引从 0 到 8。这导致无法从表中读取最后一个 Sprite 和 greenJewel
在数组末尾包含一个“空”条目。
从 JSON 中删除最后一个条目 ( "name": "sprite-08", ...
) 以解决该问题。
关于javascript - Spritesheet 动画消失 p5.js,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59810654/