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disable preloader

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Spedon
2023-03-20 21:57:51 +08:00
parent 4e98152859
commit eabecd860c
1 changed files with 10 additions and 0 deletions
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10
assets/ts/imageCache.ts
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@@ -4,5 +4,15 @@ import { preloadImage, calcImageIndex } from './utils'
let lastIndex: number = 0 let lastIndex: number = 0
export const preloader = (index: number): void => { export const preloader = (index: number): void => {
if (lastIndex === index) {
for (let i: number = -2; i <= 1; i++)
preloadImage(imagesArray[calcImageIndex(index + i, imagesArrayLen)].url)
} else if (lastIndex > index) {
for (let i: number = 1; i <= 3; i++)
preloadImage(imagesArray[calcImageIndex(index - i, imagesArrayLen)].url)
} else {
for (let i: number = 1; i <= 3; i++)
preloadImage(imagesArray[calcImageIndex(index + i, imagesArrayLen)].url)
}
lastIndex = index lastIndex = index
} }