Ru/Over the Shoulder View

заплечная камера в игре

Step 1 - Put a third-person view by default.

Find and open 'in_camera.cpp' , it should be in the 'client.dll' files. Now find each use case of sv_cheats, and delete or comment out all these lines. Find the last function, and at the very end you should see something like this 'void CInput :: Init_Camera (void)' In this function add m_fCameraInThirdPerson = true ; It should turn out like this:

void CInput::Init_Camera( void )
{
   m_CameraIsOrthographic = false;
   m_fCameraInThirdPerson = true;
}

These actions have established a third-person view of the standard, without requiring any gestures from the player.

Step 2 - Create a view from behind the shoulder.

In this step, we will make the necessary changes in order to make a camera with a view from the back. Find and open clientmode_shared.cpp. It is also located in the client.dll files. Now find the function void ClientModeShared :: OverrideView (CViewSetup * pSetup). Replace everything inside the function with:

C_BasePlayer * pPlayer = C_BasePlayer :: GetLocalPlayer ();
if (! pPlayer)
       return;

pPlayer->OverrideView( pSetup );

if( ::input->CAM_IsThirdPerson() )
{
   Vector camForward, camRight, camUp;
     
          AngleVectors( pPlayer->EyeAngles(), &camForward, &camRight, &camUp );
     
   trace_t tr, tr2;
   Vector vecStart, vecStop, vecDirection, vecSetDirection;   
   static float camCurrentY;   
   static float camCurrentX=16.0f;   
   float camDelta=0.5f;
   vecStart=pSetup->origin;

   AngleVectors(pPlayer->EyeAngles(), &vecDirection);   
      
   vecSetDirection.Init(0,0,1.0f);
   vecDirection=vecDirection.Cross(vecSetDirection);
   vecStop = vecStart + vecDirection*52.0f;

   UTIL_TraceLine( vecStart, vecStop, MASK_ALL, pPlayer, COLLISION_GROUP_NONE, &tr );
      
   if (tr.fraction == 1) //are we far enough not to hit the wall with the camera
   {
    if(camCurrentX < 16.0f)
     camCurrentX +=camDelta;
    if(camCurrentX >16.0f)
     camCurrentX=16.0f;
    VectorMA( pSetup->origin, camCurrentX, camRight, pSetup->origin); //setting the correct offset
    VectorMA( pSetup->origin, 16.0f, camUp, pSetup->origin);
     vecStart=tr.endpos;
   }
   else   
   {   
       
    vecStop = vecStart + vecDirection * -52.0f;
       
    UTIL_TraceLine( vecStart, vecStop, MASK_ALL, pPlayer, COLLISION_GROUP_NONE, &tr );
         
    if (tr.fraction == 1)   
    {   
     if(camCurrentX > -16.0f)
      camCurrentX -=camDelta;
     if(camCurrentX < -16.0f)
      camCurrentX=-16.0f;
     VectorMA( pSetup->origin, camCurrentX, camRight, pSetup->origin);
     VectorMA( pSetup->origin, 16.0f, camUp, pSetup->origin);
     vecStart=tr.endpos;
    }
    else   
    {   
     VectorMA( pSetup->origin, 0.0f, camRight, pSetup->origin);   
     AngleVectors(pPlayer->EyeAngles(), &vecDirection);   
     vecSetDirection.Init(1.0f,0,0);
     vecDirection=vecDirection.Cross(vecSetDirection);
     vecStop = vecStart +vecDirection*32.0f;
       
     UTIL_TraceLine( vecStart, vecStop, MASK_ALL, pPlayer, COLLISION_GROUP_NONE, &tr);

     if(tr.fraction == 1)
     {
      VectorMA( pSetup->origin, 32.0f, camUp, pSetup->origin);
      vecStart=tr.endpos;
     }
     else   
       //Add code to make the player transparent so the player can see better. (?)
     {
      VectorMA( pSetup->origin, 0.0f, camUp, pSetup->origin);
     }
    }

   }
       
   AngleVectors(pPlayer->EyeAngles(), &vecDirection);   
   vecStop = vecStart + vecDirection * -96;
   UTIL_TraceLine( vecStart, vecStop, MASK_ALL, pPlayer, COLLISION_GROUP_NONE, &tr );
     
   vecStart=pSetup->origin;
     
   vecStop = vecStart+vecDirection*-96;
   UTIL_TraceLine( vecStart, vecStop, MASK_ALL, pPlayer, COLLISION_GROUP_NONE, &tr );
        
   if(tr.fraction != 1)
   {
    camCurrentY = -96 * tr.fraction + 10.0f;
   }
   else
          {
    camCurrentY=-96.0f;
    VectorMA( pSetup->origin, camCurrentY, camForward, pSetup->origin);
   }
}

This will create a shoulder view that will stand by the right shoulder as standard. This is certainly not an ideal code, but to start creating some interesting mod, it may be suitable. If there is no space on the right, then a test will occur and if there is space, then x and z -16 / + 16 will be installed and then the distance behind will be checked. If there is no space to the left or to the right, z is set to +32 and x 0. This will place the camera above the player’s model head, so the player can still see. If there is not enough space above, the camera will be placed at eye level. All these checks are needed for the correct type of camera, for example, if you crawl in the ventilation pipes or worse, in the sewer

Шаг 3 - Исправляем маленький баг

Существует маленький баг, который нужно исправить, если его не исправить, то анимация вашего персонажа при повороте камеры по сторонам, будет глючить. Найдите и откройте c_sdk_player.cpp. Найдите функцию void C_SDKPlayer::UpdateClientSideAnimation() и замените содержимое на:

if ( this == C_SDKPlayer::GetLocalSDKPlayer() )
   m_PlayerAnimState->Update( EyeAngles()[YAW], EyeAngles()[PITCH] );
else
   m_PlayerAnimState->Update( m_angEyeAngles[YAW], EyeAngles()[PITCH] );

BaseClass::UpdateClientSideAnimation();

Теперь анимация должна быть корректной. Для игр на движке HL2MP нужно сделать немного другое. Найдите и откройте файл hl2mp_player.cpp. Найдите функцию void CHL2MP_Player::PostThink( void ) и замените содержимое на:

BaseClass::PostThink();
     
if ( GetFlags() & FL_DUCKING )
{
   SetCollisionBounds( VEC_CROUCH_TRACE_MIN, VEC_CROUCH_TRACE_MAX );
}

m_PlayerAnimState.Update();

QAngle angles = GetLocalAngles();

CBasePlayer *pPlayer = dynamic_cast<CBasePlayer*>(this);
if ( pPlayer )
{
   angles[PITCH] = EyeAngles()[PITCH];
   angles[YAW] = EyeAngles()[YAW];
}
else
{
   angles[PITCH] = EyeAngles()[PITCH];
   angles[YAW] = m_angEyeAngles[YAW];
}

SetLocalAngles( angles );

Теперь глюков быть не должно.

Шаг 4 - Саморегулирующийся прицел.

Найдите и откройте hud_crosshair.cpp. Он находиться в client.dll файлах. Теперь найдите функцию void CHudCrosshair::Paint( void ). Замените содержимое функции на:

if ( !m_pCrosshair )
   return;

if ( !IsCurrentViewAccessAllowed() )
   return;   

C_BasePlayer *pPlayer = C_BasePlayer::GetLocalPlayer();
Vector vecStart, vecStop, vecDirection, vecCrossPos;
trace_t tr;
     
AngleVectors(pPlayer->EyeAngles(), &vecDirection);

vecStart= pPlayer->EyePosition();
vecStop = vecStart + vecDirection * MAX_TRACE_LENGTH;
     
UTIL_TraceLine( vecStart, vecStop, MASK_ALL, pPlayer , COLLISION_GROUP_NONE, &tr );
     
     
ScreenTransform(tr.endpos, vecCrossPos);

m_pCrosshair->DrawSelf( 0.5f*ScreenWidth()+0.5f*ScreenWidth()*vecCrossPos[0]-0.5f*m_pCrosshair->Width(),   
     0.5f*ScreenHeight()+(0.5f*ScreenHeight()*-vecCrossPos[1])-0.5f*m_pCrosshair->Height(),
     m_clrCrosshair );

Так как вид уже из-за плеча, координаты прицела должны поменяться вот это собственно мы и изменяем.