mirror of https://github.com/mode777/rayjs.git
67 lines
2.4 KiB
TypeScript
67 lines
2.4 KiB
TypeScript
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import { makeUpdateablePromise } from "./promise-extensions"
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export type easeFunc = (t: number, a: number, b: number, d: number) => number
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export const interpolate = (a: number, b: number, d: number, setter: (v: number) => void, fn: easeFunc) => {
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const start = getTime()
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const delta = b - a
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return makeUpdateablePromise<void>(ctx => {
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const cur = getTime()-start
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if(cur < d && !ctx.isCancellationRequested){
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setter(fn(cur, a, delta, d))
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} else {
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setter(b)
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ctx.resolve()
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}
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})
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}
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export const interpolateVec2 = (a: Vector2, b: Vector2, d: number, setter: (v: Vector2) => void, fn: easeFunc) => {
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const start = getTime()
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const delta = vector2Subtract(b, a)
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return makeUpdateablePromise<void>(ctx => {
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const cur = getTime()-start
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if(cur < d && !ctx.isCancellationRequested){
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const x = fn(cur, a.x, delta.x, d)
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const y = fn(cur, a.y, delta.y, d)
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setter(new Vector2(x,y))
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} else {
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setter(b)
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ctx.resolve()
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}
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})
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}
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export const interpolateVec3 = (a: Vector3, b: Vector3, d: number, setter: (v: Vector3) => void, fn: easeFunc) => {
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const start = getTime()
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const delta = vector3Subtract(b, a)
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return makeUpdateablePromise<void>(ctx => {
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const cur = getTime()-start
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if(cur < d && !ctx.isCancellationRequested){
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const x = fn(cur, a.x, delta.x, d)
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const y = fn(cur, a.y, delta.y, d)
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const z = fn(cur, a.z, delta.z, d)
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setter(new Vector3(x,y,z))
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} else {
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setter(b)
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ctx.resolve()
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}
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})
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}
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export const waitCondition = (predicate: () => boolean) => makeUpdateablePromise<void>(ctx => {
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if(predicate() || ctx.isCancellationRequested){
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ctx.resolve()
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}
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})
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export const waitFirst = <T>(list: T[], predicate: (item: T) => boolean) => makeUpdateablePromise<number>(ctx => {
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let idx = list.findIndex(x => predicate(x))
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if(idx !== -1 || ctx.isCancellationRequested) ctx.resolve(idx)
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})
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export const wait = (time: number) => {
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const start = getTime()
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return waitCondition(() => (getTime()-start) >= time)
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}
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export const waitKeyPressed = (key: number) => waitCondition(() => isKeyPressed(key))
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export const waitClick = (button: number = MOUSE_BUTTON_LEFT) => waitCondition(() => isMouseButtonDown(button))
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