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fix(core): Converts boat packets (#416)

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- [X] Converts boat packets
- [X] Makes a packet container builder for packet 0xF7
- [X] Generalizes world item packet so it works for mobiles too

Notes:
- This PR doesn't address proper smooth movement for boats.
This commit is contained in:
Kamron Batman 2021-01-18 08:38:32 -08:00 • committed by GitHub
parent b4b1b0b122
commit 08f05afd01
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GPG key ID: 4AEE18F83AFDEB23
15 changed files with 619 additions and 220 deletions
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68
Projects/Server/Network/Packets/OutgoingEntityPackets.cs
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@ -15,6 +15,7 @@
using System;
using System.Buffers;
using Server.Items;
namespace Server.Network
{
@ -22,6 +23,7 @@ namespace Server.Network
{
public const int OPLPacketLength = 9;
public const int RemoveEntityLength = 5;
public const int MaxWorldEntityPacketLength = 26;
public static void CreateOPLInfo(Span<byte> buffer, Item item) =>
CreateOPLInfo(buffer, item.Serial, item.PropertyList.Hash);
@ -79,5 +81,71 @@ namespace Server.Network
ns.Send(buffer);
}
public static int CreateWorldEntity(Span<byte> buffer, IEntity entity, bool isSA, bool isHS)
{
if (buffer[0] != 0)
{
return buffer.Length;
}
var writer = new SpanWriter(buffer);
writer.Write((byte)0xF3); // Packet ID
writer.Write((short)0x1); // command
int type = 0;
int gfx = 0;
int amount = 1;
int hue = 0;
byte light = 0;
int flags = 0;
if (entity is BaseMulti multi)
{
type = 2;
gfx = multi.ItemID & (isHS ? 0xFFFF : 0x7FFF);
hue = multi.Hue;
amount = multi.Amount;
}
else if (entity is Item item)
{
// type = 3 if is damageable
gfx = item.ItemID & (isHS ? 0xFFFF : 0x7FFF);
hue = item.Hue;
amount = item.Amount;
light = (byte)item.Light;
flags = item.GetPacketFlags();
}
else if (entity is Mobile mobile)
{
type = 1;
gfx = mobile.BodyValue;
hue = mobile.Hue;
flags = mobile.GetPacketFlags(isSA);
}
writer.Write((byte)type);
writer.Write(entity.Serial);
writer.Write((ushort)gfx);
writer.Write((byte)0);
writer.Write((short)amount); // Min
writer.Write((short)amount); // Max
writer.Write((short)(entity.X & 0x7FFF));
writer.Write((short)(entity.Y & 0x3FFF));
writer.Write((sbyte)entity.Z);
writer.Write((byte)light);
writer.Write((short)hue);
writer.Write((byte)flags);
if (isHS)
{
writer.Write((short)0);
}
return writer.Position;
}
}
}