Fixes falsey check for exclusive relations and adds unit test

NateTheGreatt / bitECS

Flexible, minimal, data-oriented ECS library for Typescript

Mozilla Public License 2.0

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Fixes falsey check for exclusive relations and adds unit test #151

Closed WestonVincze closed 4 months ago

WestonVincze commented 4 months ago

note: I'd like to move the newly added test to the end of the test file, but I don't know how to reset the eid count for "addEntity". If the new test is added as is to the bottom the "player" eid would be 14 and the test would pass without the fix