The METAMAGIC_* constants are used to indicate the metamagic that should be applied to a spell. This is a bit field, which allows constants to be combined with bitwise-or (|), even though NWN only allows one form of metamagic to be selected at a time.
| constant | associated feat |
|---|---|
| METAMAGIC_ANY | all possible metamagic feats |
| METAMAGIC_EMPOWER | empower spell |
| METAMAGIC_EXTEND | extend spell |
| METAMAGIC_MAXIMIZE | maximize spell |
| METAMAGIC_NONE | no metamagic feat |
| METAMAGIC_QUICKEN | quicken spell |
| METAMAGIC_SILENT | silent spell |
| METAMAGIC_STILL | still spell |