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73 lines
1.8 KiB
C++
73 lines
1.8 KiB
C++
/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
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/* If you are missing that file, acquire a complete release at teeworlds.com. */
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#include <engine/shared/snapshot.h>
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#include <game/generated/protocol.h>
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#include <base/math.h>
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#include "extrainfo.h"
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bool UseExtraInfo(const CNetObj_Projectile *pProj)
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{
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bool ExtraInfoFlag = ((abs(pProj->m_VelY) & (1<<9)) != 0);
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return ExtraInfoFlag;
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}
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void ExtractInfo(const CNetObj_Projectile *pProj, vec2 *StartPos, vec2 *StartVel)
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{
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if(!UseExtraInfo(pProj))
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{
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StartPos->x = pProj->m_X;
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StartPos->y = pProj->m_Y;
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StartVel->x = pProj->m_VelX/100.0f;
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StartVel->y = pProj->m_VelY/100.0f;
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}
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else
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{
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StartPos->x = pProj->m_X/100.0f;
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StartPos->y = pProj->m_Y/100.0f;
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float Angle = pProj->m_VelX/1000000.0f;
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StartVel->x = sin(-Angle);
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StartVel->y = cos(-Angle);
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}
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}
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void ExtractExtraInfo(const CNetObj_Projectile *pProj, int *Owner, bool *Explosive, int *Bouncing, bool *Freeze)
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{
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int Data = pProj->m_VelY;
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if(Owner)
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{
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*Owner = Data & 255;
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if((Data>>8) & 1)
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*Owner = -(*Owner);
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}
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if(Bouncing)
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*Bouncing = (Data>>10) & 3;
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if(Explosive)
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*Explosive = (Data>>12) & 1;
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if(Freeze)
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*Freeze = (Data>>13) & 1;
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}
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void SnapshotRemoveExtraInfo(unsigned char *pData)
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{
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CSnapshot *pSnap = (CSnapshot*) pData;
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for(int Index = 0; Index < pSnap->NumItems(); Index++)
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{
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CSnapshotItem *pItem = pSnap->GetItem(Index);
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if(pItem->Type() == NETOBJTYPE_PROJECTILE)
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{
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CNetObj_Projectile *pProj = (CNetObj_Projectile*) ((void*)pItem->Data());
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if(UseExtraInfo(pProj))
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{
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vec2 Pos;
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vec2 Vel;
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ExtractInfo(pProj, &Pos, &Vel);
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pProj->m_X = Pos.x;
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pProj->m_Y = Pos.y;
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pProj->m_VelX = (int)(Vel.x*100.0f);
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pProj->m_VelY = (int)(Vel.y*100.0f);
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}
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}
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}
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}
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