refacotring various simulator features into pxt
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@ -116,72 +116,6 @@ namespace pxsim {
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}
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return font;
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}
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export interface AnimationOptions {
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interval: number;
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// false means last frame
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frame: () => boolean;
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whenDone?: (cancelled: boolean) => void;
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}
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export class AnimationQueue {
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private queue: AnimationOptions[] = [];
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private process: () => void;
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constructor(private runtime: Runtime) {
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this.process = () => {
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let top = this.queue[0]
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if (!top) return
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if (this.runtime.dead) return
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runtime = this.runtime
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let res = top.frame()
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runtime.queueDisplayUpdate()
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runtime.maybeUpdateDisplay()
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if (res === false) {
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this.queue.shift();
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// if there is already something in the queue, start processing
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if (this.queue[0])
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setTimeout(this.process, this.queue[0].interval)
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// this may push additional stuff
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top.whenDone(false);
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} else {
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setTimeout(this.process, top.interval)
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}
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}
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}
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public cancelAll() {
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let q = this.queue
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this.queue = []
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for (let a of q) {
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a.whenDone(true)
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}
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}
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public cancelCurrent() {
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let top = this.queue[0]
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if (top) {
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this.queue.shift();
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top.whenDone(true);
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}
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}
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public enqueue(anim: AnimationOptions) {
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if (!anim.whenDone) anim.whenDone = () => { };
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this.queue.push(anim)
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// we start processing when the queue goes from 0 to 1
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if (this.queue.length == 1)
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this.process()
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}
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public executeAsync(anim: AnimationOptions) {
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U.assert(!anim.whenDone)
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return new Promise<boolean>((resolve, reject) => {
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anim.whenDone = resolve
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this.enqueue(anim)
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})
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}
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}
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}
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namespace pxsim.images {
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