Changes

A 'net type' is any of several classes which Stardew Valley uses to sync data between players, named for the <code>Net</code> prefix in their name. A net type can represent a simple value like <tt>NetBool</tt>, or complex values like <tt>NetFieldDictionary</tt>. The game will regularly collect all the net fields reachable from <tt>Game1.netWorldState</tt> and sync them with other players. That means that many mod changes will be synchronised automatically in multiplayer.

A 'net type' is any of several classes which Stardew Valley uses to sync data between players, named for the <code>Net</code> prefix in their name. A net type can represent a simple value like <tt>NetBool</tt>, or complex values like <tt>NetFieldDictionary</tt>. The game will regularly collect all the net fields reachable from <tt>Game1.netWorldState</tt> and sync them with other players. That means that many mod changes will be synchronised automatically in multiplayer.

Net fields can implicitly convert to their underlying value type (like <code>bool x = new NetBool(true)</code>), but their conversion rules can be counterintuitive and error-prone. For example, <code>item?.category == null && item?.category != null</code> can both be true at once. '''Always avoid implicit casts to minimise bugs.''' Instead, access the underlying value using <tt>.Value</tt> (or <tt>.Pairs</tt> on a net dictionary):

Although net fields can be implicitly converted to an equivalent value type (like <code>bool x = new NetBool(true)</code>), their conversion rules are counterintuitive and error-prone (e.g. <code>item?.category == null && item?.category != null</code> can both be true at once). Never implicitly case net fields to minimise bugs; instead, access the underlying value directly. Here's how to use some common net types:

: <source lang="C#">

NetString str = new NetString("bar");

if (str.Value == "bar") // true

</source>

| A simple synchronised value. Access the value using <tt>field.Value</tt>.

| A list of <tt>T</tt> values. This implements the standard interfaces like [https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.ienumerable-1 <tt>IEnumerable&lt;T&gt;</tt>] and [https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.ilist-1 <tt>IList&lt;T&gt;</tt>], so you can iterate it directly like <code>foreach (T value in field)</code>.

| <tt>NetPointDictionary&lt;TValue, TNetValue&gt;</tt>

| Maps <tt>Point</tt> keys to instances of <tt>TValue</tt> (the underlying value type) and <tt>TNetValue</tt> (the synchronised net type). You can iterate key/value pairs like <code>foreach (KeyValuePair<Point, TValue> pair in field.Pairs)</code>.

| <tt>NetVector2Dictionary&lt;TValue, TNetValue&gt;</tt>

| Maps <tt>Vector2</tt> keys to instances of <tt>TValue</tt> (the underlying value type) and <tt>TNetValue</tt> (the synchronised net type). You can iterate key/value pairs like <code>foreach (KeyValuePair<Vector2, TValue> pair in field.Pairs)</code>.

The build config NuGet package should detect most implicit conversions and show an appropriate build warning.

The build config NuGet package should detect most implicit conversions and show an appropriate build warning.