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Merge pull request #593 from fsih/fixWaitCalledEveryFrame

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Change wait to use a promise instead of being called every frame
This commit is contained in:
DD Liu 2017-06-08 15:35:48 -04:00 committed by GitHub
commit fb986effe6
1 changed files with 7 additions and 13 deletions
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18
src/blocks/scratch3_control.js
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@ -1,5 +1,4 @@
const Cast = require('../util/cast'); const Cast = require('../util/cast');
const Timer = require('../util/timer');
class Scratch3ControlBlocks { class Scratch3ControlBlocks {
constructor (runtime) { constructor (runtime) {
@ -73,18 +72,13 @@ class Scratch3ControlBlocks {
util.startBranch(1, true); util.startBranch(1, true);
} }
wait (args, util) { wait (args) {
if (!util.stackFrame.timer) {
util.stackFrame.timer = new Timer();
util.stackFrame.timer.start();
util.yield();
this.runtime.requestRedraw();
} else {
const duration = Math.max(0, 1000 * Cast.toNumber(args.DURATION)); const duration = Math.max(0, 1000 * Cast.toNumber(args.DURATION));
if (util.stackFrame.timer.timeElapsed() < duration) { return new Promise(resolve => {
util.yield(); setTimeout(() => {
} resolve();
} }, duration);
});
} }
if (args, util) { if (args, util) {