boolean (entity ent, integer index) Waypoint_IsValid;
integer (entity ent) Waypoint_Count;
vector (entity ent, integer index) Waypoint_Get;
void (entity ent, integer index, vector loc) Waypoint_Set;
void (entity ent, vector loc) Waypoint_Append;
boolean (entity ent, integer index) Waypoint_IsTouching;
void (entity ent, integer index, vector loc) Waypoint_Add;
void (entity ent, integer index) Waypoint_Remove;