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updater.go
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updater.go
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package world
import (
"fmt"
"time"
"github.com/paalgyula/summit/pkg/summit/world/object"
"github.com/paalgyula/summit/pkg/summit/world/object/player"
"github.com/paalgyula/summit/pkg/wow"
)
type Updater struct {
UpdateData []any
updateFlags uint8
}
//nolint:funlen,wsl,cyclop,errcheck
func (upd *Updater) buildMovementUpdate(unit any, pkt *wow.Packet) {
var o *object.Object
var u *object.Unit
var p *player.Player
switch t := unit.(type) {
case *player.Player:
o = t.Object
p = t
case *object.Object:
o = t
default:
panic(fmt.Sprintf("unknown type: %T", unit))
}
pkt.Write(wow.UpdateTypeMovement)
pkt.Write(o.GUID())
moveFlags := wow.MovementFlagNone
pkt.Write(upd.updateFlags) // update flags
if upd.updateFlags&wow.UpdateFlagLiving != 0 {
//nolint:exhaustive
switch o.GUID().TypeID() {
case wow.TypeIDUnit:
{
moveFlags = o.MovementFlags()
moveFlags &= ^wow.MovementFlagOnTransport
}
case wow.TypeIDPlayer:
{
moveFlags = o.MovementFlags()
if p.Transport() != nil {
moveFlags |= wow.MovementFlagOnTransport
} else {
moveFlags &= ^wow.MovementFlagOnTransport
}
}
}
pkt.Write(moveFlags) // movement flags
pkt.WriteOne(0) // movemoveFlags
pkt.Write(uint32(time.Now().UnixMilli())) // time (in milliseconds)
}
if upd.updateFlags&wow.UpdateFlagHasPosition != 0 {
//nolint:gocritic
if upd.updateFlags&wow.UpdateFlagTransport != 0 &&
o.GameObjectType() == wow.GameObjectTypeMoTransport {
pkt.Write(float32(0))
pkt.Write(float32(0))
pkt.Write(float32(0))
// *data << float(((WorldObject*)this)->GetOrientation());
pkt.Write(float32(0)) // Orientation
} else {
// *data << float(((WorldObject*)this)->GetPositionX());
pkt.Write(float32(0))
// *data << float(((WorldObject*)this)->GetPositionY());
pkt.Write(float32(0))
// *data << float(((WorldObject*)this)->GetPositionZ());
pkt.Write(float32(0))
// *data << float(((WorldObject*)this)->GetOrientation());
pkt.Write(float32(0))
}
}
// // 0x20
if upd.updateFlags&wow.UpdateFlagLiving != 0 {
// {
// // 0x00000200
// if (moveFlags & MOVEMENTFLAG_ONTRANSPORT)
// {
// if (GetTypeId() == TYPEID_PLAYER)
// {
// *data << (uint64)ToPlayer()->GetTransport()->GetGUID();
// *data << (float)ToPlayer()->GetTransOffsetX();
// *data << (float)ToPlayer()->GetTransOffsetY();
// *data << (float)ToPlayer()->GetTransOffsetZ();
// *data << (float)ToPlayer()->GetTransOffsetO();
// *data << (uint32)ToPlayer()->GetTransTime();
// }
// //Oregon currently not have support for other than player on transport
// }
// // 0x02200000
// if (moveFlags & (MOVEMENTFLAG_SWIMMING | MOVEMENTFLAG_FLYING2))
// {
// if (GetTypeId() == TYPEID_PLAYER)
// *data << (float)ToPlayer()->m_movementInfo.s_pitch;
// else
// *data << float(0); // is't part of movement packet, we must store and send it...
// }
if o.GUID().TypeID() == wow.TypeIDPlayer {
// *data << (uint32)ToPlayer()->m_movementInfo.GetFallTime();
// else
// *data << uint32(0); // last fall time
pkt.Write(uint32(0))
// // 0x00001000
// if (moveFlags & MOVEMENTFLAG_FALLING)
// {
// if (GetTypeId() == TYPEID_PLAYER)
// {
// *data << float(ToPlayer()->m_movementInfo.j_velocity);
// *data << float(ToPlayer()->m_movementInfo.j_sinAngle);
// *data << float(ToPlayer()->m_movementInfo.j_cosAngle);
// *data << float(ToPlayer()->m_movementInfo.j_xyspeed);
// }
// else
// {
// *data << float(0);
// *data << float(0);
// *data << float(0);
// *data << float(0);
// }
// }
// // 0x04000000
// if (moveFlags & MOVEMENTFLAG_SPLINE_ELEVATION)
// {
// if (GetTypeId() == TYPEID_PLAYER)
// *data << float(ToPlayer()->m_movementInfo.u_unk1);
// else
// *data << float(0);
// }
// // Unit speeds
// *data << ((Unit*)this)->GetSpeed(MOVE_WALK);
pkt.Write(u.GetSpeed(wow.MoveTypeWalk))
// *data << ((Unit*)this)->GetSpeed(MOVE_RUN);
pkt.Write(u.GetSpeed(wow.MoveTypeRun))
// *data << ((Unit*)this)->GetSpeed(MOVE_RUN_BACK);
pkt.Write(u.GetSpeed(wow.MoveTypeRunBack))
// *data << ((Unit*)this)->GetSpeed(MOVE_SWIM);
pkt.Write(u.GetSpeed(wow.MoveTypeSwim))
// *data << ((Unit*)this)->GetSpeed(MOVE_SWIM_BACK);
pkt.Write(u.GetSpeed(wow.MoveTypeSwimBack))
// *data << ((Unit*)this)->GetSpeed(MOVE_FLIGHT);
pkt.Write(u.GetSpeed(wow.MoveTypeFlight))
// *data << ((Unit*)this)->GetSpeed(MOVE_FLIGHT_BACK);
pkt.Write(u.GetSpeed(wow.MoveTypeFlightBack))
// *data << ((Unit*)this)->GetSpeed(MOVE_TURN_RATE);
pkt.Write(u.GetSpeed(wow.MoveTypeTurnRate))
// // 0x08000000
// if (moveFlags & MOVEMENTFLAG_SPLINE_ENABLED)
// Movement::PacketBuilder::WriteCreate(*((Unit*)this)->movespline, *data);
}
}
// // 0x8
if upd.updateFlags&wow.UpdateFlagLowGUID != 0 {
switch o.GUID().TypeID() {
case wow.TypeIDObject, wow.TypeIDItem, wow.TypeIDContainer,
wow.TypeIDGameObject, wow.TypeIDDynamicoObject, wow.TypeIDCorpse:
pkt.Write(o.GUID().Entry()) // GetGUIDLow()
case wow.TypeIDUnit:
// *data << uint32(0x0000000B); // unk, can be 0xB or 0xC
pkt.WriteUint32(0x0B)
case wow.TypeIDPlayer:
if upd.updateFlags&wow.UpdateFlagSelf != 0 {
// *data << uint32(0x00000015); // unk, can be 0x15 or 0x22
pkt.WriteUint32(0x15)
} else {
// *data << uint32(0x00000008); // unk, can be 0x7 or 0x8
pkt.WriteUint32(0x8)
}
default:
// *data << uint32(0x00000000); // unk
pkt.WriteUint32(0x00000000)
}
}
// // 0x10
if upd.updateFlags&wow.UpdateFlagHighGUID != 0 {
//nolint:exhaustive
switch o.GUID().TypeID() {
case wow.TypeIDObject, wow.TypeIDItem, wow.TypeIDContainer,
wow.TypeIDGameObject, wow.TypeIDDynamicoObject, wow.TypeIDCorpse:
pkt.Write(o.GUID().High()) // GetGUIDHigh()
default:
pkt.WriteUint32(0x00) // unk
}
}
// // 0x4
// if (updateFlags & UPDATEFLAG_HAS_ATTACKING_TARGET) // packed guid (probably target guid)
// {
// if (Unit const* me = ToUnit())
// {
// if (me->GetVictim())
// *data << me->GetVictim()->GetPackGUID();
// else
// *data << uint8(0);
// }
// else
// *data << uint8(0);
// }
// // 0x2
// if (updateFlags & UPDATEFLAG_TRANSPORT)
// {
// *data << uint32(getMSTime()); // ms time
// }
}
func (upd *Updater) BuildUpdateObject(player *player.Player) *wow.Packet {
p := wow.NewPacket(wow.ServerUpdateObject)
_ = p.WriteUint32(len(upd.UpdateData))
_ = p.WriteOne(0) // Has transport
// if (!m_outOfRangeGUIDs.empty())
// {
// buf << (uint8) UPDATETYPE_OUT_OF_RANGE_OBJECTS;
// buf << (uint32) m_outOfRangeGUIDs.size();
// for (std::set<uint64>::const_iterator i = m_outOfRangeGUIDs.begin(); i != m_outOfRangeGUIDs.end(); ++i)
// {
// // buf << i->WriteAsPacked();
// buf << (uint8)0xFF;
// buf << *i;
// }
// }
upd.buildMovementUpdate(player, p)
return p
}