ddnet/src/game/client/components/ghost.cpp

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/* (c) Rajh, Redix and Sushi. */
#include <engine/ghost.h>
#include <engine/serverbrowser.h>
#include <engine/storage.h>
#include <engine/shared/config.h>
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#include <game/client/race.h>
#include "players.h"
#include "skins.h"
#include "menus.h"
#include "ghost.h"
const char *CGhost::ms_pGhostDir = "ghosts";
CGhost::CGhost() : m_NewRenderTick(-1), m_StartRenderTick(-1), m_LastDeathTick(-1), m_LastRaceTick(-1), m_Recording(false), m_Rendering(false) {}
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void CGhost::GetGhostSkin(CGhostSkin *pSkin, const char *pSkinName, int UseCustomColor, int ColorBody, int ColorFeet)
{
StrToInts(&pSkin->m_Skin0, 6, pSkinName);
pSkin->m_UseCustomColor = UseCustomColor;
pSkin->m_ColorBody = ColorBody;
pSkin->m_ColorFeet = ColorFeet;
}
void CGhost::GetGhostCharacter(CGhostCharacter *pGhostChar, const CNetObj_Character *pChar)
{
pGhostChar->m_X = pChar->m_X;
pGhostChar->m_Y = pChar->m_Y;
pGhostChar->m_VelX = pChar->m_VelX;
pGhostChar->m_VelY = 0;
pGhostChar->m_Angle = pChar->m_Angle;
pGhostChar->m_Direction = pChar->m_Direction;
pGhostChar->m_Weapon = pChar->m_Weapon;
pGhostChar->m_HookState = pChar->m_HookState;
pGhostChar->m_HookX = pChar->m_HookX;
pGhostChar->m_HookY = pChar->m_HookY;
pGhostChar->m_AttackTick = pChar->m_AttackTick;
pGhostChar->m_Tick = pChar->m_Tick;
}
void CGhost::GetNetObjCharacter(CNetObj_Character *pChar, const CGhostCharacter *pGhostChar)
{
mem_zero(pChar, sizeof(CNetObj_Character));
pChar->m_X = pGhostChar->m_X;
pChar->m_Y = pGhostChar->m_Y;
pChar->m_VelX = pGhostChar->m_VelX;
pChar->m_VelY = 0;
pChar->m_Angle = pGhostChar->m_Angle;
pChar->m_Direction = pGhostChar->m_Direction;
pChar->m_Weapon = pGhostChar->m_Weapon == WEAPON_GRENADE ? WEAPON_GRENADE : WEAPON_GUN;
pChar->m_HookState = pGhostChar->m_HookState;
pChar->m_HookX = pGhostChar->m_HookX;
pChar->m_HookY = pGhostChar->m_HookY;
pChar->m_AttackTick = pGhostChar->m_AttackTick;
pChar->m_HookedPlayer = -1;
pChar->m_Tick = pGhostChar->m_Tick;
}
CGhost::CGhostPath::CGhostPath(CGhostPath &&Other)
: m_ChunkSize(Other.m_ChunkSize), m_NumItems(Other.m_NumItems), m_lChunks(std::move(Other.m_lChunks))
{
Other.m_NumItems = 0;
Other.m_lChunks.clear();
}
CGhost::CGhostPath &CGhost::CGhostPath::operator = (CGhostPath &&Other)
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{
Reset(Other.m_ChunkSize);
m_NumItems = Other.m_NumItems;
m_lChunks = std::move(Other.m_lChunks);
Other.m_NumItems = 0;
Other.m_lChunks.clear();
return *this;
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}
void CGhost::CGhostPath::Reset(int ChunkSize)
{
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for(unsigned i = 0; i < m_lChunks.size(); i++)
free(m_lChunks[i]);
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m_lChunks.clear();
m_ChunkSize = ChunkSize;
m_NumItems = 0;
}
void CGhost::CGhostPath::SetSize(int Items)
{
int Chunks = m_lChunks.size();
int NeededChunks = (Items + m_ChunkSize - 1) / m_ChunkSize;
if(NeededChunks > Chunks)
{
m_lChunks.resize(NeededChunks);
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for(int i = Chunks; i < NeededChunks; i++)
m_lChunks[i] = (CGhostCharacter *)calloc(m_ChunkSize, sizeof(CGhostCharacter));
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}
m_NumItems = Items;
}
void CGhost::CGhostPath::Add(CGhostCharacter Char)
{
SetSize(m_NumItems + 1);
*Get(m_NumItems - 1) = Char;
}
CGhostCharacter *CGhost::CGhostPath::Get(int Index)
{
if(Index < 0 || Index >= m_NumItems)
return 0;
int Chunk = Index / m_ChunkSize;
int Pos = Index % m_ChunkSize;
return &m_lChunks[Chunk][Pos];
}
void CGhost::GetPath(char *pBuf, int Size, const char *pPlayerName, int Time) const
{
const char *pMap = Client()->GetCurrentMap();
unsigned Crc = Client()->GetMapCrc();
char aPlayerName[MAX_NAME_LENGTH];
str_copy(aPlayerName, pPlayerName, sizeof(aPlayerName));
str_sanitize_filename(aPlayerName);
if(Time < 0)
str_format(pBuf, Size, "%s/%s_%s_%08x_tmp_%d.gho", ms_pGhostDir, pMap, aPlayerName, Crc, pid());
else
str_format(pBuf, Size, "%s/%s_%s_%d.%03d_%08x.gho", ms_pGhostDir, pMap, aPlayerName, Time / 1000, Time % 1000, Crc);
}
void CGhost::AddInfos(const CNetObj_Character *pChar)
{
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int NumTicks = m_CurGhost.m_Path.Size();
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// do not start writing to file as long as we still touch the start line
if(g_Config.m_ClRaceSaveGhost && !GhostRecorder()->IsRecording() && NumTicks > 0)
{
GetPath(m_aTmpFilename, sizeof(m_aTmpFilename), m_CurGhost.m_aPlayer);
GhostRecorder()->Start(m_aTmpFilename, Client()->GetCurrentMap(), Client()->GetMapCrc(), m_CurGhost.m_aPlayer);
GhostRecorder()->WriteData(GHOSTDATA_TYPE_START_TICK, &m_CurGhost.m_StartTick, sizeof(int));
GhostRecorder()->WriteData(GHOSTDATA_TYPE_SKIN, &m_CurGhost.m_Skin, sizeof(CGhostSkin));
for(int i = 0; i < NumTicks; i++)
GhostRecorder()->WriteData(GHOSTDATA_TYPE_CHARACTER, m_CurGhost.m_Path.Get(i), sizeof(CGhostCharacter));
}
CGhostCharacter GhostChar;
GetGhostCharacter(&GhostChar, pChar);
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m_CurGhost.m_Path.Add(GhostChar);
if(GhostRecorder()->IsRecording())
GhostRecorder()->WriteData(GHOSTDATA_TYPE_CHARACTER, &GhostChar, sizeof(CGhostCharacter));
}
int CGhost::GetSlot() const
{
for(int i = 0; i < MAX_ACTIVE_GHOSTS; i++)
if(m_aActiveGhosts[i].Empty())
return i;
return -1;
}
int CGhost::FreeSlots() const
{
int Num = 0;
for(int i = 0; i < MAX_ACTIVE_GHOSTS; i++)
if(m_aActiveGhosts[i].Empty())
Num++;
return Num;
}
void CGhost::CheckStart()
{
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int RaceTick = -m_pClient->m_Snap.m_pGameInfoObj->m_WarmupTimer;
int RenderTick = m_NewRenderTick;
if(m_LastRaceTick != RaceTick && Client()->GameTick() - RaceTick < Client()->GameTickSpeed())
{
if(m_Rendering && m_RenderingStartedByServer) // race restarted: stop rendering
StopRender();
if(m_Recording && m_LastRaceTick != -1) // race restarted: activate restarting for local start detection so we have a smooth transition
m_AllowRestart = true;
if(m_LastRaceTick == -1) // no restart: reset rendering preparations
m_NewRenderTick = -1;
if(GhostRecorder()->IsRecording()) // race restarted: stop recording
GhostRecorder()->Stop(0, -1);
int StartTick = RaceTick;
if(GameClient()->m_GameInfo.m_BugDDRaceGhost) // the client recognizes the start one tick earlier than ddrace servers
StartTick--;
StartRecord(StartTick);
RenderTick = StartTick;
}
TryRenderStart(RenderTick, true);
}
void CGhost::CheckStartLocal(bool Predicted)
{
if(Predicted) // rendering
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{
int RenderTick = m_NewRenderTick;
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vec2 PrevPos = m_pClient->m_PredictedPrevChar.m_Pos;
vec2 Pos = m_pClient->m_PredictedChar.m_Pos;
if(((!m_Rendering && RenderTick == -1) || m_AllowRestart) && CRaceHelper::IsStart(m_pClient, PrevPos, Pos))
{
if(m_Rendering && !m_RenderingStartedByServer) // race restarted: stop rendering
StopRender();
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RenderTick = Client()->PredGameTick();
}
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TryRenderStart(RenderTick, false);
}
else // recording
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{
int PrevTick = m_pClient->m_Snap.m_pLocalPrevCharacter->m_Tick;
int CurTick = m_pClient->m_Snap.m_pLocalCharacter->m_Tick;
vec2 PrevPos = vec2(m_pClient->m_Snap.m_pLocalPrevCharacter->m_X, m_pClient->m_Snap.m_pLocalPrevCharacter->m_Y);
vec2 Pos = vec2(m_pClient->m_Snap.m_pLocalCharacter->m_X, m_pClient->m_Snap.m_pLocalCharacter->m_Y);
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// detecting death, needed because race allows immediate respawning
if((!m_Recording || m_AllowRestart) && m_LastDeathTick < PrevTick)
{
// estimate the exact start tick
int RecordTick = -1;
int TickDiff = CurTick - PrevTick;
for(int i = 0; i < TickDiff; i++)
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{
if(CRaceHelper::IsStart(m_pClient, mix(PrevPos, Pos, (float)i / TickDiff), mix(PrevPos, Pos, (float)(i + 1) / TickDiff)))
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{
RecordTick = PrevTick + i + 1;
if(!m_AllowRestart)
break;
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}
}
if(RecordTick != -1)
{
if(GhostRecorder()->IsRecording()) // race restarted: stop recording
GhostRecorder()->Stop(0, -1);
StartRecord(RecordTick);
}
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}
}
}
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void CGhost::TryRenderStart(int Tick, bool ServerControl)
{
// only restart rendering if it did not change since last tick to prevent stuttering
if(m_NewRenderTick != -1 && m_NewRenderTick == Tick)
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{
StartRender(Tick);
Tick = -1;
m_RenderingStartedByServer = ServerControl;
}
m_NewRenderTick = Tick;
}
void CGhost::OnNewSnapshot()
{
if(!GameClient()->m_GameInfo.m_Race || Client()->State() != IClient::STATE_ONLINE)
return;
if(!m_pClient->m_Snap.m_pGameInfoObj || m_pClient->m_Snap.m_SpecInfo.m_Active || !m_pClient->m_Snap.m_pLocalCharacter || !m_pClient->m_Snap.m_pLocalPrevCharacter)
return;
bool RaceFlag = m_pClient->m_Snap.m_pGameInfoObj->m_GameStateFlags&GAMESTATEFLAG_RACETIME;
bool ServerControl = RaceFlag && g_Config.m_ClRaceGhostServerControl;
if(g_Config.m_ClRaceGhost)
{
if(!ServerControl)
CheckStartLocal(false);
else
CheckStart();
if(m_Recording)
AddInfos(m_pClient->m_Snap.m_pLocalCharacter);
}
// Record m_LastRaceTick for g_Config.m_ClConfirmDisconnect/QuitTime anyway
int RaceTick = -m_pClient->m_Snap.m_pGameInfoObj->m_WarmupTimer;
m_LastRaceTick = RaceFlag ? RaceTick : -1;
}
void CGhost::OnNewPredictedSnapshot()
{
if(!GameClient()->m_GameInfo.m_Race || !g_Config.m_ClRaceGhost || Client()->State() != IClient::STATE_ONLINE)
return;
if(!m_pClient->m_Snap.m_pGameInfoObj || m_pClient->m_Snap.m_SpecInfo.m_Active || !m_pClient->m_Snap.m_pLocalCharacter || !m_pClient->m_Snap.m_pLocalPrevCharacter)
return;
bool RaceFlag = m_pClient->m_Snap.m_pGameInfoObj->m_GameStateFlags&GAMESTATEFLAG_RACETIME;
bool ServerControl = RaceFlag && g_Config.m_ClRaceGhostServerControl;
if(!ServerControl)
CheckStartLocal(true);
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}
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void CGhost::OnRender()
{
// Play the ghost
if(!m_Rendering || !g_Config.m_ClRaceShowGhost)
return;
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int PlaybackTick = Client()->PredGameTick() - m_StartRenderTick;
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for(int i = 0; i < MAX_ACTIVE_GHOSTS; i++)
{
CGhostItem *pGhost = &m_aActiveGhosts[i];
if(pGhost->Empty())
continue;
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int GhostTick = pGhost->m_StartTick + PlaybackTick;
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while(pGhost->m_PlaybackPos >= 0 && pGhost->m_Path.Get(pGhost->m_PlaybackPos)->m_Tick < GhostTick)
{
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if(pGhost->m_PlaybackPos < pGhost->m_Path.Size() - 1)
pGhost->m_PlaybackPos++;
else
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pGhost->m_PlaybackPos = -1;
}
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if(pGhost->m_PlaybackPos < 0)
continue;
int CurPos = pGhost->m_PlaybackPos;
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int PrevPos = maximum(0, CurPos - 1);
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if(pGhost->m_Path.Get(PrevPos)->m_Tick > GhostTick)
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continue;
CNetObj_Character Player, Prev;
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GetNetObjCharacter(&Player, pGhost->m_Path.Get(CurPos));
GetNetObjCharacter(&Prev, pGhost->m_Path.Get(PrevPos));
int TickDiff = Player.m_Tick - Prev.m_Tick;
float IntraTick = 0.f;
if(TickDiff > 0)
IntraTick = (GhostTick - Prev.m_Tick - 1 + Client()->PredIntraGameTick()) / TickDiff;
Player.m_AttackTick += Client()->GameTick() - GhostTick;
m_pClient->m_pPlayers->RenderHook(&Prev, &Player, &pGhost->m_RenderInfo , -2, IntraTick);
m_pClient->m_pPlayers->RenderPlayer(&Prev, &Player, &pGhost->m_RenderInfo, -2, IntraTick);
}
}
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void CGhost::InitRenderInfos(CGhostItem *pGhost)
{
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char aSkinName[64];
IntsToStr(&pGhost->m_Skin.m_Skin0, 6, aSkinName);
CTeeRenderInfo *pRenderInfo = &pGhost->m_RenderInfo;
int SkinId = m_pClient->m_pSkins->Find(aSkinName);
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if(pGhost->m_Skin.m_UseCustomColor)
{
pRenderInfo->m_Texture = m_pClient->m_pSkins->Get(SkinId)->m_ColorTexture;
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pRenderInfo->m_ColorBody = color_cast<ColorRGBA>(ColorHSLA(pGhost->m_Skin.m_ColorBody));
pRenderInfo->m_ColorFeet = color_cast<ColorRGBA>(ColorHSLA(pGhost->m_Skin.m_ColorFeet));
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}
else
{
pRenderInfo->m_Texture = m_pClient->m_pSkins->Get(SkinId)->m_OrgTexture;
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pRenderInfo->m_ColorBody = ColorRGBA(1, 1, 1);
pRenderInfo->m_ColorFeet = ColorRGBA(1, 1, 1);
}
pRenderInfo->m_Size = 64;
}
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void CGhost::StartRecord(int Tick)
{
m_Recording = true;
m_CurGhost.Reset();
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m_CurGhost.m_StartTick = Tick;
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const CGameClient::CClientData *pData = &m_pClient->m_aClients[m_pClient->m_Snap.m_LocalClientID];
str_copy(m_CurGhost.m_aPlayer, g_Config.m_PlayerName, sizeof(m_CurGhost.m_aPlayer));
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GetGhostSkin(&m_CurGhost.m_Skin, pData->m_aSkinName, pData->m_UseCustomColor, pData->m_ColorBody, pData->m_ColorFeet);
InitRenderInfos(&m_CurGhost);
}
void CGhost::StopRecord(int Time)
{
m_Recording = false;
bool RecordingToFile = GhostRecorder()->IsRecording();
if(RecordingToFile)
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GhostRecorder()->Stop(m_CurGhost.m_Path.Size(), Time);
CMenus::CGhostItem *pOwnGhost = m_pClient->m_pMenus->GetOwnGhost();
if(Time > 0 && (!pOwnGhost || Time < pOwnGhost->m_Time))
{
if(pOwnGhost && pOwnGhost->Active())
Unload(pOwnGhost->m_Slot);
// add to active ghosts
int Slot = GetSlot();
if(Slot != -1)
m_aActiveGhosts[Slot] = std::move(m_CurGhost);
// create ghost item
CMenus::CGhostItem Item;
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if(RecordingToFile)
GetPath(Item.m_aFilename, sizeof(Item.m_aFilename), m_CurGhost.m_aPlayer, Time);
str_copy(Item.m_aPlayer, m_CurGhost.m_aPlayer, sizeof(Item.m_aPlayer));
Item.m_Time = Time;
Item.m_Slot = Slot;
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// save new ghost file
if(Item.HasFile())
Storage()->RenameFile(m_aTmpFilename, Item.m_aFilename, IStorage::TYPE_SAVE);
// add item to menu list
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m_pClient->m_pMenus->UpdateOwnGhost(Item);
}
else if(RecordingToFile) // no new record
Storage()->RemoveFile(m_aTmpFilename, IStorage::TYPE_SAVE);
m_aTmpFilename[0] = 0;
m_CurGhost.Reset();
}
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void CGhost::StartRender(int Tick)
{
m_Rendering = true;
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m_StartRenderTick = Tick;
for(int i = 0; i < MAX_ACTIVE_GHOSTS; i++)
m_aActiveGhosts[i].m_PlaybackPos = 0;
}
void CGhost::StopRender()
{
m_Rendering = false;
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m_NewRenderTick = -1;
}
int CGhost::Load(const char *pFilename)
{
int Slot = GetSlot();
if(Slot == -1)
return -1;
if(GhostLoader()->Load(pFilename, Client()->GetCurrentMap(), Client()->GetMapCrc()) != 0)
return -1;
const CGhostHeader *pHeader = GhostLoader()->GetHeader();
int NumTicks = pHeader->GetTicks();
int Time = pHeader->GetTime();
if(NumTicks <= 0 || Time <= 0)
{
GhostLoader()->Close();
return -1;
}
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// select ghost
CGhostItem *pGhost = &m_aActiveGhosts[Slot];
pGhost->Reset();
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pGhost->m_Path.SetSize(NumTicks);
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str_copy(pGhost->m_aPlayer, pHeader->m_aOwner, sizeof(pGhost->m_aPlayer));
int Index = 0;
bool FoundSkin = false;
bool NoTick = false;
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bool Error = false;
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int Type;
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while(!Error && GhostLoader()->ReadNextType(&Type))
{
if(Index == NumTicks && (Type == GHOSTDATA_TYPE_CHARACTER || Type == GHOSTDATA_TYPE_CHARACTER_NO_TICK))
{
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Error = true;
break;
}
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if(Type == GHOSTDATA_TYPE_SKIN && !FoundSkin)
{
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FoundSkin = true;
if(!GhostLoader()->ReadData(Type, &pGhost->m_Skin, sizeof(CGhostSkin)))
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Error = true;
}
else if(Type == GHOSTDATA_TYPE_CHARACTER_NO_TICK)
{
NoTick = true;
if(!GhostLoader()->ReadData(Type, pGhost->m_Path.Get(Index++), sizeof(CGhostCharacter_NoTick)))
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Error = true;
}
else if(Type == GHOSTDATA_TYPE_CHARACTER)
{
if(!GhostLoader()->ReadData(Type, pGhost->m_Path.Get(Index++), sizeof(CGhostCharacter)))
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Error = true;
}
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else if(Type == GHOSTDATA_TYPE_START_TICK)
{
if(!GhostLoader()->ReadData(Type, &pGhost->m_StartTick, sizeof(int)))
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Error = true;
}
}
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GhostLoader()->Close();
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if(Error || Index != NumTicks)
{
pGhost->Reset();
return -1;
}
if(NoTick)
{
int StartTick = 0;
for(int i = 1; i < NumTicks; i++) // estimate start tick
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if(pGhost->m_Path.Get(i)->m_AttackTick != pGhost->m_Path.Get(i - 1)->m_AttackTick)
StartTick = pGhost->m_Path.Get(i)->m_AttackTick - i;
for(int i = 0; i < NumTicks; i++)
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pGhost->m_Path.Get(i)->m_Tick = StartTick + i;
}
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if(pGhost->m_StartTick == -1)
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pGhost->m_StartTick = pGhost->m_Path.Get(0)->m_Tick;
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if(!FoundSkin)
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GetGhostSkin(&pGhost->m_Skin, "default", 0, 0, 0);
InitRenderInfos(pGhost);
return Slot;
}
void CGhost::Unload(int Slot)
{
m_aActiveGhosts[Slot].Reset();
}
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void CGhost::UnloadAll()
{
for(int i = 0; i < MAX_ACTIVE_GHOSTS; i++)
Unload(i);
}
void CGhost::SaveGhost(CMenus::CGhostItem *pItem)
{
int Slot = pItem->m_Slot;
if(!pItem->Active() || pItem->HasFile() || m_aActiveGhosts[Slot].Empty() || GhostRecorder()->IsRecording())
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return;
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CGhostItem *pGhost = &m_aActiveGhosts[Slot];
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int NumTicks = pGhost->m_Path.Size();
GetPath(pItem->m_aFilename, sizeof(pItem->m_aFilename), pItem->m_aPlayer, pItem->m_Time);
GhostRecorder()->Start(pItem->m_aFilename, Client()->GetCurrentMap(), Client()->GetMapCrc(), pItem->m_aPlayer);
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GhostRecorder()->WriteData(GHOSTDATA_TYPE_START_TICK, &pGhost->m_StartTick, sizeof(int));
GhostRecorder()->WriteData(GHOSTDATA_TYPE_SKIN, &pGhost->m_Skin, sizeof(CGhostSkin));
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for(int i = 0; i < NumTicks; i++)
GhostRecorder()->WriteData(GHOSTDATA_TYPE_CHARACTER, pGhost->m_Path.Get(i), sizeof(CGhostCharacter));
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GhostRecorder()->Stop(NumTicks, pItem->m_Time);
}
void CGhost::ConGPlay(IConsole::IResult *pResult, void *pUserData)
{
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CGhost *pGhost = (CGhost *)pUserData;
pGhost->StartRender(pGhost->Client()->PredGameTick());
}
void CGhost::OnConsoleInit()
{
m_pGhostLoader = Kernel()->RequestInterface<IGhostLoader>();
m_pGhostRecorder = Kernel()->RequestInterface<IGhostRecorder>();
Console()->Register("gplay", "", CFGFLAG_CLIENT, ConGPlay, this, "");
}
void CGhost::OnMessage(int MsgType, void *pRawMsg)
{
// check for messages from server
if(MsgType == NETMSGTYPE_SV_KILLMSG)
{
CNetMsg_Sv_KillMsg *pMsg = (CNetMsg_Sv_KillMsg *)pRawMsg;
if(pMsg->m_Victim == m_pClient->m_Snap.m_LocalClientID)
{
if(m_Recording)
StopRecord();
StopRender();
m_LastDeathTick = Client()->GameTick();
}
}
else if(MsgType == NETMSGTYPE_SV_CHAT)
{
CNetMsg_Sv_Chat *pMsg = (CNetMsg_Sv_Chat *)pRawMsg;
if(pMsg->m_ClientID == -1 && m_Recording)
{
char aName[MAX_NAME_LENGTH];
int Time = CRaceHelper::TimeFromFinishMessage(pMsg->m_pMessage, aName, sizeof(aName));
if(Time > 0 && str_comp(aName, m_pClient->m_aClients[m_pClient->m_Snap.m_LocalClientID].m_aName) == 0)
{
StopRecord(Time);
StopRender();
}
}
}
}
void CGhost::OnReset()
{
StopRecord();
StopRender();
m_LastDeathTick = -1;
m_LastRaceTick = -1;
}
void CGhost::OnMapLoad()
{
OnReset();
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UnloadAll();
m_pClient->m_pMenus->GhostlistPopulate();
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m_AllowRestart = false;
}
int CGhost::GetLastRaceTick()
{
return m_LastRaceTick;
}