b042edcf0b
## Summary
Folds **113** hand-written `[SerializableProperty]` members into plain `[SerializableField]` declarations using the v4 setter hooks — value coercion/vetoes via `allowFieldChange`, post-change side effects via `fieldChanged` (whose `oldValue` parameter covers the old-house/old-sender unsubscribe patterns). Net **-450 lines** of setter boilerplate.
```cs
// before
[SerializableProperty(1)]
[CommandProperty(AccessLevel.GameMaster)]
public int Charges
{
get => _charges;
set
{
_charges = Math.Clamp(value, 0, MaxCharges);
InvalidateProperties();
this.MarkDirty();
}
}
// after
[SerializableField(1, allowFieldChange: nameof(AllowChargesChange))]
[SerializedCommandProperty(AccessLevel.GameMaster)]
[InvalidateProperties]
private int _charges;
private bool AllowChargesChange(ref int value)
{
value = Math.Clamp(value, 0, MaxCharges);
return true;
}
```
## How sites were selected
A classifier parsed all 204 `[SerializableProperty]` sites and converted only those matching strict shapes: getter is exactly `get => _field;`, the assignment comes first (after at most an equality guard), and relocated side effects contain no `return`, no `value` mutation, and no field re-assignment. Everything else was left alone deliberately:
- **~34 custom getters** (fallback defaults like `_x == -1 ? Default : _x`, self-healing refs) — no setter hook can express these.
- **~35 pre-assignment logic** (durability Unscale/Scale sandwiches, old-state captures like PotionKeg's pile weight).
- **virtual/override members, name-mismatched backing fields (`m_`), exotic semantics** (guards' `Focus` does work on *equal* assignment; `ChampionSpawn.Active` never assigns its field).
Five sites the classifier refused were converted by hand where the hooks fit cleanly: `ReceiverCrystal.Sender`, `PlayerVendor.House`, `PlayerBarkeeper.House` (old-value unsubscribe via `oldValue`), `BaseSuit.AccessLevel` (its existing virtual `OnAccessLevelChanged` already had the exact callback shape), and `DyeTub.DyedHue` (a true veto: `AllowDyedHueChange(ref int value) => _redyable`).
## Verification
- Build: **0 errors, 0 warnings**.
- **Schema regeneration produces zero Migrations changes** — the conversion is wire- and schema-neutral by construction (same orders, types, and property names), and CI's schema diff check enforces it.
- **835 + 708 tests green.**
## Behavioral notes (all strict improvements, called out for review)
- Generated setters skip everything when the incoming value equals the current one; a few converted setters previously re-ran side effects on equal assignment (redundant `Update()`-style refreshes).
- Generated setters always `MarkDirty()` on change; several converted setters never did (e.g. `DyeTub.DyedHue`, `MorphItem` ranges) — their changes only persisted if something else dirtied the entity. Those latent persistence bugs are fixed by construction.
60 lines
1.5 KiB
C#
60 lines
1.5 KiB
C#
using System;
|
|
using ModernUO.Serialization;
|
|
|
|
namespace Server.Items;
|
|
|
|
[SerializationGenerator(0, false)]
|
|
public partial class MessageInABottle : Item
|
|
{
|
|
[SerializableField(1)]
|
|
private Map _targetMap;
|
|
|
|
[Constructible]
|
|
public MessageInABottle(Map map = null) : this(map, GetRandomLevel())
|
|
{
|
|
}
|
|
|
|
[Constructible]
|
|
public MessageInABottle(Map map, int level) : base(0x099F)
|
|
{
|
|
TargetMap = map ?? Map.Trammel;
|
|
_level = level;
|
|
}
|
|
|
|
public override double DefaultWeight => 1.0;
|
|
|
|
public override int LabelNumber => 1041080; // a message in a bottle
|
|
|
|
[SerializableField(0, allowFieldChange: nameof(AllowLevelChange))]
|
|
[SerializedCommandProperty(AccessLevel.GameMaster)]
|
|
private int _level;
|
|
|
|
private bool AllowLevelChange(ref int value)
|
|
{
|
|
value = Math.Max(1, Math.Min(value, 4));
|
|
return true;
|
|
}
|
|
|
|
public static int GetRandomLevel()
|
|
{
|
|
if (Core.AOS && Utility.Random(25) < 1)
|
|
{
|
|
return 4; // ancient
|
|
}
|
|
|
|
return Utility.RandomMinMax(1, 3);
|
|
}
|
|
|
|
public override void OnDoubleClick(Mobile from)
|
|
{
|
|
if (IsChildOf(from.Backpack))
|
|
{
|
|
ReplaceWith(new SOS(TargetMap, _level));
|
|
from.LocalOverheadMessage(MessageType.Regular, 0x3B2, 501891); // You extract the message from the bottle.
|
|
}
|
|
else
|
|
{
|
|
from.SendLocalizedMessage(1042001); // That must be in your pack for you to use it.
|
|
}
|
|
}
|
|
}
|