Simulation or game loop using async-await and events [Answered]
I'm trying to simulate a system with participants where the system periodically notifies the participants to perform an action. I'm trying to use async/await with a custom
Task delegate but exceptions aren't handled the way I thought they would be. Please refer to the Sharplab demo URL for more information: https://pastebin.com/J55Xzb6H.
I have an exception for Id == 5 which does not get caught. If I uncomment the next < score exception it always gets caught for the listener with the biggest Id (i.e. the last one to be added to the list).
Is there a better approach to do this? I wanted to leverage async/await to prevent having to wait for all the listeners to perform their actions one at a time but I do want to handle exceptions correctly.
Full Sharplab URL:
https://sharplab.io/#v2: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SharpLab
C#/VB/F# compiler playground.
12 Replies
that link doesn't seem to work, just fyi
your paste has expired
wtf already
how do I full screen this topic? cba to read like this
ah right, had to participate first
game loops are usually linear and on a single thread for a reason
namely: if you care about execution order, do it single threaded
you can build your engine/loop around async logic, but you have to be ok with stuff not running in order
yup. and inside an iteration of the loop, you can run other things multithreaded, for when things inside that group don't care about execution logic
3 dots in the top right in the future
aw, thanks
Stack Overflow
can't catch exception in main thread when other thread active and h...
Main thread can't catch an exception (that was thrown in the main thread) while another thread with try-catch is still active. How to solve it?
example:
int main()
{
// try-catch of main thread
...
ah I see, I'll have a read then thanks
so how could I restructure my code using async/await to have the desired outcome? I don't want to make my own threads and manage them cause I would probably mess up more
i.e. have a game loop that fires an event periodically, and have listeners/actors that react to that event asynchronously and emit their own events for when their performed actions have finished
this is a C++ question though, does C# try/catch behave the same?
Sure.. probably ;P
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