### Summary
Adds `XInRangeByDistance` and `XInBoundsByDistance` methods to `Map.cs`:
**Item Distance Enumeration:**
```cs
ItemDistanceEnumerable<Item> GetItemsInRangeByDistance(Point3D p);
ItemDistanceEnumerable<Item> GetItemsInRangeByDistance(Point3D p, int range);
ItemDistanceEnumerable<T> GetItemsInRangeByDistance<T>(Point3D p) where T : Item;
ItemDistanceEnumerable<T> GetItemsInRangeByDistance<T>(Point3D p, int range) where T : Item;
ItemDistanceEnumerable<Item> GetItemsInRangeByDistance(Point2D p);
ItemDistanceEnumerable<Item> GetItemsInRangeByDistance(Point2D p, int range);
ItemDistanceEnumerable<T> GetItemsInRangeByDistance<T>(Point2D p) where T : Item;
ItemDistanceEnumerable<T> GetItemsInRangeByDistance<T>(Point2D p, int range) where T : Item;
ItemDistanceEnumerable<Item> GetItemsInRangeByDistance(int x, int y, int range);
ItemDistanceEnumerable<T> GetItemsInRangeByDistance<T>(int x, int y, int range) where T : Item;
ItemDistanceEnumerable<Item> GetItemsInBoundsByDistance(Rectangle2D bounds, , bool makeBoundsInclusive = false);
ItemDistanceEnumerable<T> GetItemsInBoundsByDistance<T>(Rectangle2D bounds, bool makeBoundsInclusive = false) where T : Item;
```
**Mobile Distance Enumeration:**
```cs
MobileDistanceEnumerable<Mobile> GetMobilesInRangeByDistance(Point3D p);
MobileDistanceEnumerable<Mobile> GetMobilesInRangeByDistance(Point3D p, int range);
MobileDistanceEnumerable<T> GetMobilesInRangeByDistance<T>(Point3D p) where T : Mobile;
MobileDistanceEnumerable<T> GetMobilesInRangeByDistance<T>(Point3D p, int range) where T : Mobile;
MobileDistanceEnumerable<Mobile> GetMobilesInRangeByDistance(Point2D p);
MobileDistanceEnumerable<Mobile> GetMobilesInRangeByDistance(Point2D p, int range);
MobileDistanceEnumerable<T> GetMobilesInRangeByDistance<T>(Point2D p) where T : Mobile;
MobileDistanceEnumerable<T> GetMobilesInRangeByDistance<T>(Point2D p, int range) where T : Mobile;
MobileDistanceEnumerable<Mobile> GetMobilesInRangeByDistance(int x, int y, int range);
MobileDistanceEnumerable<T> GetMobilesInRangeByDistance<T>(int x, int y, int range) where T : Mobile;
MobileDistanceEnumerable<Mobile> GetMobilesInBoundsByDistance(Rectangle2D bounds, bool makeBoundsInclusive = false);
MobileDistanceEnumerable<T> GetMobilesInBoundsByDistance<T>(Rectangle2D bounds, bool makeBoundsInclusive = false) where T : Mobile;
```
**Client Distance Enumeration:**
```cs
ClientDistanceEnumerable GetClientsInRangeByDistance(Point3D p);
ClientDistanceEnumerable GetClientsInRangeByDistance(Point3D p, int range);
ClientDistanceEnumerable GetClientsInRangeByDistance(Point2D p);
ClientDistanceEnumerable GetClientsInRangeByDistance(Point2D p, int range);
ClientDistanceEnumerable GetClientsInRangeByDistance(int x, int y, int range);
ClientDistanceEnumerable GetClientsInBoundsByDistance(Rectangle2D bounds, bool makeBoundsInclusive = false);
```
**Example Usage:**
How to use `minDistance` to terminate early when all subsequent mobiles in the iteration will be at an increasing min distance.
```csharp
var playerLocation = player.Location;
const int maxRange = 100;
const int maxMobiles = 12;
var closestMobiles = new SortedSet<Mobile>(Comparer<Mobile>.Create((x, y) =>
{
var distX = x.GetDistanceToSqrt(playerLocation);
var distY = y.GetDistanceToSqrt(playerLocation);
int result = distX.CompareTo(distY);
if (result == 0)
{
result = (x?.Serial ?? Serial.MinusOne).CompareTo(y?.Serial ?? Serial.MinusOne);
}
return result;
}));
int lastMinDistance = 0;
foreach (var (mobile, minDistance) in map.GetMobilesInRangeByDistance(playerLocation, maxRange))
{
// Stop if we have enough and distance starts increasing
if (closestMobiles.Count >= maxMobiles && minDistance > lastMinDistance)
{
break;
}
closestMobiles.Add(mobile);
lastMinDistance = minDistance;
}
// Results are already ordered by proximity
foreach (var mobile in closestMobiles)
{
var actualDistance = mobile.GetDistanceToSqrt(playerLocation);
Console.WriteLine($"{mobile.Name}: ActualDist={actualDistance:F2}");
}
```
## BREAKING CHANGE
- Deletes `map.GetObjectsInRange` and `map.GetObejctsInBounds`
### Notes
Developers are expected to enumerate mobiles and items separately now using `map.GetMobilesInRange` and `map.GetItemsInRange`. This helps keep the code streamlined so we don't have to maintain multiple copies of ref struct enumerators that do the same thing.
### Fixes
- [X] Fixes bug with planks closing
- [X] Fixes issue with iterating items/mobiles from a null map
### Summary
Eliminates `IPooledEnumerable<NetState>` and `eable.Free()` from `Map` for clients. This drastically simplifies code that iterates in range, for example:
```cs
foreach (var m in m.GetClientsInRange(5))
{
}
```
The code above no longer requires an eable and calling `Free()`.
### Summary
Modifying a ValueLinkList using one of the methods will bump the "version". This field is used by iterators (foreach loops) to determine if the link list was modified while iterating. The sector.Items (and in the future other lists), will no longer be safe to modify while iterating. The server will _CRASH_ if the ValueLinkList is modified.
Thanks to @stefanomerotta for help!
### Screenshots
<img width="588" alt="image" src="https://github.com/modernuo/ModernUO/assets/3953314/83ee0b6e-ff4f-4768-9e29-84456e04b1ec">
### Summary
Eliminates `IPooledEnumerable<T>` and `eable.Free()` from `Map` for items. This drastically simplifies code that iterates in range, for example:
```cs
foreach (var item in m.GetItemsInRange(5))
{
}
```
The code above no longer requires an eable and calling `Free()`.
