c# - Simple way to yield an array in parallel -

newer version of c# has async/await. in unity there yield. how implement method can yield in parallel?

similar promise.all([]) in javascript, don't care 1 finishes first, care when done.

to give more context, imagine designing procedural terrain generator generate in chunks; , have setup each chunk generate using threadpool, , provide api returns ienumerator:

ienumerator generatechunk() {   // procedural generation   // queue onto threadpool   // when done, yield }  ienumerator generatechunks() {   (int = 0; < chunks.length; i++) {     yield return chunks[i].generatechunk();   } }  void generatemap() {   startcoroutine(generatechunks()); } 

can yield ienumerator[]?

update: not sure have expressed myself clearly. want kick start generatechunk @ once, , allow them finish fast possible, instead of yielding 1 after another.

is code doing that, or need else?

yield return startcoroutine(chunks[i].generatechunk());