[11720] Implement spline movement subsystem

Spline movement controls movements of server-side controlled units (monster movement, taxi movement, etc).
Proper implementation of effects such as charge, jump, cyclic movement will rely on it.
However, need improve our states system before.

Technical changes:

 1. Added linear, catmullrom and bezier3 splines which based on client's algorthims. They can be reused for proper transport position interpolation.
 2. Precission increased. There are no more position desync issues since client's position calculation formulas used.
 3. Now possible to move by paths with multiple points, send whole path to client.
This commit is contained in:
SilverIce 2011-07-08 17:25:13 +03:00
parent e302fce513
commit 9d566398ad
52 changed files with 2471 additions and 1203 deletions

View file

@ -39,10 +39,9 @@
#include "CellImpl.h"
#include "GridNotifiers.h"
#include "GridNotifiersImpl.h"
#include "ObjectPosSelector.h"
#include "TemporarySummon.h"
#include "movement/packet_builder.h"
Object::Object( )
{
@ -256,57 +255,13 @@ void Object::BuildMovementUpdate(ByteBuffer * data, uint16 updateFlags) const
{
Unit *unit = ((Unit*)this);
switch(GetTypeId())
if (GetTypeId() == TYPEID_PLAYER)
{
case TYPEID_UNIT:
{
unit->m_movementInfo.SetMovementFlags(MOVEFLAG_NONE);
// disabled, makes them run-in-same-place before movement generator updated once.
/*if (((Creature*)unit)->hasUnitState(UNIT_STAT_MOVING))
unit->m_movementInfo.SetMovementFlags(MOVEFLAG_FORWARD);*/
if (((Creature*)unit)->CanFly())
{
// (ok) most seem to have this
unit->m_movementInfo.AddMovementFlag(MOVEFLAG_LEVITATING);
/*if (!((Creature*)unit)->hasUnitState(UNIT_STAT_MOVING))
{
// (ok) possibly some "hover" mode
unit->m_movementInfo.AddMovementFlag(MOVEFLAG_ROOT);
}
else*/
{
if (((Creature*)unit)->IsMounted())
{
// seems to be often when mounted
unit->m_movementInfo.AddMovementFlag(MOVEFLAG_FLYING);
}
}
}
}
break;
case TYPEID_PLAYER:
{
Player *player = ((Player*)unit);
if(player->GetTransport())
player->m_movementInfo.AddMovementFlag(MOVEFLAG_ONTRANSPORT);
else
player->m_movementInfo.RemoveMovementFlag(MOVEFLAG_ONTRANSPORT);
// remove unknown, unused etc flags for now
player->m_movementInfo.RemoveMovementFlag(MOVEFLAG_SPLINE_ENABLED);
if(player->IsTaxiFlying())
{
MANGOS_ASSERT(player->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE);
player->m_movementInfo.AddMovementFlag(MOVEFLAG_FORWARD);
player->m_movementInfo.AddMovementFlag(MOVEFLAG_SPLINE_ENABLED);
}
}
break;
Player *player = ((Player*)unit);
if(player->GetTransport())
player->m_movementInfo.AddMovementFlag(MOVEFLAG_ONTRANSPORT);
else
player->m_movementInfo.RemoveMovementFlag(MOVEFLAG_ONTRANSPORT);
}
// Update movement info time
@ -326,86 +281,8 @@ void Object::BuildMovementUpdate(ByteBuffer * data, uint16 updateFlags) const
*data << float(unit->GetSpeed(MOVE_PITCH_RATE));
// 0x08000000
if(unit->m_movementInfo.GetMovementFlags() & MOVEFLAG_SPLINE_ENABLED)
{
if(GetTypeId() != TYPEID_PLAYER)
{
DEBUG_LOG("_BuildMovementUpdate: MOVEFLAG_SPLINE_ENABLED for non-player");
return;
}
Player *player = ((Player*)unit);
if(!player->IsTaxiFlying())
{
DEBUG_LOG("_BuildMovementUpdate: MOVEFLAG_SPLINE_ENABLED but not in flight");
return;
}
MANGOS_ASSERT(player->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE);
FlightPathMovementGenerator *fmg = (FlightPathMovementGenerator*)(player->GetMotionMaster()->top());
uint32 flags3 = SPLINEFLAG_WALKMODE | SPLINEFLAG_FLYING;
*data << uint32(flags3); // splines flag?
if(flags3 & SPLINEFLAG_FINALFACING) // may be orientation
{
*data << float(0);
}
else
{
if(flags3 & SPLINEFLAG_FINALTARGET) // probably guid there
{
*data << uint64(0);
}
else
{
if(flags3 & SPLINEFLAG_FINALPOINT) // probably x,y,z coords there
{
*data << float(0);
*data << float(0);
*data << float(0);
}
}
}
TaxiPathNodeList const& path = fmg->GetPath();
float x, y, z;
player->GetPosition(x, y, z);
uint32 inflighttime = uint32(path.GetPassedLength(fmg->GetCurrentNode(), x, y, z) * 32);
uint32 traveltime = uint32(path.GetTotalLength() * 32);
*data << uint32(inflighttime); // passed move time?
*data << uint32(traveltime); // full move time?
*data << uint32(0); // sequenceId
*data << float(0); // added in 3.1
*data << float(0); // added in 3.1
// data as in SMSG_MONSTER_MOVE with flag SPLINEFLAG_TRAJECTORY
*data << float(0); // parabolic speed, added in 3.1
*data << uint32(0); // parabolic time, added in 3.1
uint32 poscount = uint32(path.size());
*data << uint32(poscount); // points count
for(uint32 i = 0; i < poscount; ++i)
{
*data << float(path[i].x);
*data << float(path[i].y);
*data << float(path[i].z);
}
*data << uint8(0); // splineMode
*data << float(path[poscount-1].x);
*data << float(path[poscount-1].y);
*data << float(path[poscount-1].z);
}
if (unit->m_movementInfo.GetMovementFlags() & MOVEFLAG_SPLINE_ENABLED)
Movement::PacketBuilder::WriteCreate(*unit->movespline, *data);
}
else
{