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spengrah
commented
Jan 16, 2023
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| unchecked { | ||
| // should not underflow given NotHatWearer check above | ||
| --_balanceOf[_from][_hatId]; |
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might be both safer and cheaper to set these balancesOf values to 0 and 1, respectively
spengrah
commented
Jan 16, 2023
| returns (bool) | ||
| { | ||
| return (balanceOf(_user, _hatId) >= 1); | ||
| return (balanceOf(_user, _hatId) > 0); |
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This PR makes several simple / low-hanging fruit gas optimizations, the biggest of which is moving the hat supply tracker into the Hat struct (saving ~20k gas for each hat mint).