490:/d/Genesis/newmagic/spell.c (/d/Genesis/newmagic/spell.c)
(public void) set_spell_visual(int i)
/*
 * Function name: set_spell_visual
 * Description:   Indicate that the spell requires the caster to be able to
 *                see in his environment and to see the target, if there is
 *                one.
 * Arguments:     1. (int) If true, spell requires caster to see.
 */
