`NullPointerException` when draw an invalid pattern

[zhichaoxi2006]

HexMod/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/env/PlayerBasedCastEnv.java

Lines 69 to 77 in 532fe9a

	@Override
	protected double getCostModifier(PatternShapeMatch match) {
	ResourceLocation loc = actionKey(match);
	if (isOfTag(IXplatAbstractions.INSTANCE.getActionRegistry(), loc, HexTags.Actions.CANNOT_MODIFY_COST)) {
	return 1.0;
	} else {
	return this.caster.getAttributeValue(HexAttributes.MEDIA_CONSUMPTION_MODIFIER);
	}
	}

HexMod/Common/src/main/java/at/petrak/hexcasting/api/casting/eval/CastingEnvironment.java

Lines 206 to 220 in 532fe9a

	@Nullable
	protected ResourceLocation actionKey(PatternShapeMatch match) {
	ResourceLocation key;
	if (match instanceof PatternShapeMatch.Normal normal) {
	key = normal.key.location();
	} else if (match instanceof PatternShapeMatch.PerWorld perWorld) {
	key = perWorld.key.location();
	} else if (match instanceof PatternShapeMatch.Special special) {
	key = special.key.location();
	} else {
	key = null;
	}
	return key;
	}

loc may null but there not check loc is null, result in throw a NullPointerException when draw an invaild pattern.