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yield a thread loop or tick in event_broadcastandwait

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- yield a thread loop or tick in looks_switchbackdroptoandwait

If all threads broadcastAndWait is watching are "waiting" for a future
frame, yield until the next tick so event_broadcastandwait also defers
to a future frame.
This commit is contained in:
Michael "Z" Goddard 2018-06-06 09:59:38 -04:00
parent 0a006dc981
commit d161251a9b
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GPG key ID: 762CD40DD5349872
2 changed files with 22 additions and 2 deletions
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12
src/blocks/scratch3_event.js
View file

@ -100,7 +100,17 @@ class Scratch3EventBlocks {
const instance = this;
const waiting = util.stackFrame.startedThreads.some(thread => instance.runtime.isActiveThread(thread));
if (waiting) {
util.yield();
// If all threads are waiting for the next tick or later yield
// for a tick as well. Otherwise yield until the next loop of
// the threads.
if (
util.stackFrame.startedThreads
.every(thread => instance.runtime.isWaitingThread(thread))
) {
util.yieldTick();
} else {
util.yield();
}
}
}
}

12
src/blocks/scratch3_looks.js
View file

@ -409,7 +409,17 @@ class Scratch3LooksBlocks {
const instance = this;
const waiting = util.stackFrame.startedThreads.some(thread => instance.runtime.isActiveThread(thread));
if (waiting) {
util.yield();
// If all threads are waiting for the next tick or later yield
// for a tick as well. Otherwise yield until the next loop of
// the threads.
if (
util.stackFrame.startedThreads
.every(thread => instance.runtime.isWaitingThread(thread))
) {
util.yieldTick();
} else {
util.yield();
}
}
}