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phetsims / expression-exchange

"Expression Exchange" is an educational simulation in HTML5, by PhET Interactive Simulations.
GNU General Public License v3.0
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LevelSelectionButton parameters are undefined #43

Closed jonathanolson closed 7 years ago

jonathanolson commented 7 years ago

At least numStars is undefined (from StartGameLevelNode) in some cases, leading to invalid information being passed to Scenery.

Passed my threshold for fixing, as I don't know enough about the sim to immediately track it down. Added assertion in LevelSelectionButton, which is hopefully better than the recently-added Scenery assertion that would fail later.