public static Action <Danmaku> Homing(Func <Danmaku, Transform> target)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
return(delegate(Danmaku danmaku)
{
Transform trans = target(danmaku);
if (trans)
{
danmaku.Rotation = DanmakuUtil.AngleBetween2D(danmaku.position,
trans.position);
}
});
}
public static IEnumerable Towards(this IEnumerable coroutine,
GameObject target,
Func <FireData, bool> filter = null)
{
if (target == null)
{
throw new ArgumentNullException("target");
}
Transform trans = target.transform;
return(coroutine.ForEachFireData(delegate(FireData fd)
{
if (trans)
{
fd.Rotation = DanmakuUtil.AngleBetween2D(fd.Position,
trans.position);
}
},
filter));
}
public static IEnumerable Towards(this IEnumerable coroutine,
Vector2 target,
Func <FireData, bool> filter = null)
{
return(coroutine.ForEachFireData(fd => fd.Rotation = DanmakuUtil.AngleBetween2D(fd.Position, target), filter));
}
