C++: Best Way To Hold Entity List vector vs set -

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• what difference between std::set , std::vector? 4 answers

i have implemented entity-component system manage entities in game engine, managing components using std::map. main part hold entities in cworld class. entities can directly accessed index cworld, add component etc. , also, entities iterated each tick update , render operations. , list not static can guess, mean entities can die, need removed list @ point. @ point, need ask differences between std::vector , set, or suggestion hold entities.

if want access elements index, , if old elements may die such range of active indices may contain gaps, map easiest solution. map allows iterate , remove single entities easily.

list easy remove single entity hard look-up specific entity index.

vector difficult remove single entity without leaving gaps. plugging gap, index of entities after removal change.