1055 lines
30 KiB
C++
1055 lines
30 KiB
C++
//=======================================================================
|
|
// Copyright XashXT Group 2008 ©
|
|
// view.cpp - view/refresh setup functions
|
|
//=======================================================================
|
|
|
|
#include "extdll.h"
|
|
#include "utils.h"
|
|
#include "ref_params.h"
|
|
#include "triangle_api.h"
|
|
#include "pm_movevars.h"
|
|
#include "studio.h"
|
|
#include "usercmd.h"
|
|
#include "hud.h"
|
|
|
|
#define ORIGIN_BACKUP 64
|
|
#define ORIGIN_MASK ( ORIGIN_BACKUP - 1 )
|
|
|
|
// global view containers
|
|
Vector v_origin, v_angles, v_cl_angles; // base client vectors
|
|
float v_idlescale, v_lastDistance; // misc variables
|
|
Vector ev_punchangle; // client punchangles
|
|
edict_t *spot;
|
|
|
|
typedef struct
|
|
{
|
|
Vector Origins[ORIGIN_BACKUP];
|
|
float OriginTime[ORIGIN_BACKUP];
|
|
Vector Angles[ORIGIN_BACKUP];
|
|
float AngleTime[ORIGIN_BACKUP];
|
|
int CurrentOrigin;
|
|
int CurrentAngle;
|
|
} viewinterp_t;
|
|
|
|
typedef struct pitchdrift_s
|
|
{
|
|
int nodrift;
|
|
float pitchvel;
|
|
float driftmove;
|
|
float laststop;
|
|
} pitchdrift_t;
|
|
|
|
static viewinterp_t ViewInterp;
|
|
static pitchdrift_t pd;
|
|
|
|
// view CVARS
|
|
cvar_t *scr_ofsx;
|
|
cvar_t *scr_ofsy;
|
|
cvar_t *scr_ofsz;
|
|
cvar_t *cl_vsmoothing;
|
|
cvar_t *cl_stairsmooth;
|
|
cvar_t *cl_weaponlag;
|
|
|
|
cvar_t *cl_bobcycle;
|
|
cvar_t *cl_bob;
|
|
cvar_t *cl_bobup;
|
|
cvar_t *cl_waterdist;
|
|
cvar_t *cl_chasedist;
|
|
|
|
cvar_t *r_studio_lerping;
|
|
cvar_t *v_iyaw_cycle;
|
|
cvar_t *v_iroll_cycle;
|
|
cvar_t *v_ipitch_cycle;
|
|
cvar_t *v_iyaw_level;
|
|
cvar_t *v_iroll_level;
|
|
cvar_t *v_ipitch_level;
|
|
cvar_t *v_dark;
|
|
|
|
//==============================================================================
|
|
// VIEW RENDERING
|
|
//==============================================================================
|
|
|
|
//==========================
|
|
// V_ThirdPerson
|
|
//==========================
|
|
void V_ThirdPerson( void )
|
|
{
|
|
// no thirdperson in multiplayer
|
|
if( gpGlobals->maxClients > 1 ) return;
|
|
if( !gHUD.viewFlags )
|
|
gHUD.m_iLastCameraMode = gHUD.m_iCameraMode = 1;
|
|
else gHUD.m_iLastCameraMode = 1; // set new view after release camera
|
|
}
|
|
|
|
//==========================
|
|
// V_FirstPerson
|
|
//==========================
|
|
void V_FirstPerson( void )
|
|
{
|
|
if( !gHUD.viewFlags )
|
|
gHUD.m_iLastCameraMode = gHUD.m_iCameraMode = 0;
|
|
else gHUD.m_iLastCameraMode = 0; // set new view after release camera
|
|
}
|
|
|
|
/*
|
|
=============
|
|
V_PunchAxis
|
|
|
|
Client side punch effect
|
|
=============
|
|
*/
|
|
void V_PunchAxis( int axis, float punch )
|
|
{
|
|
ev_punchangle[axis] = punch;
|
|
}
|
|
|
|
//==========================
|
|
// V_Init
|
|
//==========================
|
|
void V_Init( void )
|
|
{
|
|
scr_ofsx = g_engfuncs.pfnRegisterVariable( "scr_ofsx", "0", 0, "screen offset by X" );
|
|
scr_ofsy = g_engfuncs.pfnRegisterVariable( "scr_ofsy", "0", 0, "screen offset by Y" );
|
|
scr_ofsz = g_engfuncs.pfnRegisterVariable( "scr_ofsz", "0", 0, "screen offset by Z" );
|
|
r_studio_lerping = g_engfuncs.pfnRegisterVariable( "r_studio_lerping", "1", FCVAR_ARCHIVE, "enables studio model animation lerping" ); // get copy of engine cvar
|
|
|
|
cl_vsmoothing = g_engfuncs.pfnRegisterVariable( "cl_vsmoothing", "0.05", 0, "enables lepring in multiplayer" );
|
|
cl_stairsmooth = g_engfuncs.pfnRegisterVariable( "cl_vstairsmooth", "100", FCVAR_ARCHIVE, "how fast your view moves upward/downward when running up/down stairs" );
|
|
|
|
v_iyaw_cycle = g_engfuncs.pfnRegisterVariable( "v_iyaw_cycle", "2", 0, "viewing inverse yaw cycle" );
|
|
v_iroll_cycle = g_engfuncs.pfnRegisterVariable( "v_iroll_cycle", "0.5", 0, "viewing inverse roll cycle" );
|
|
v_ipitch_cycle = g_engfuncs.pfnRegisterVariable( "v_ipitch_cycle", "1", 0, "viewing inverse pitch cycle" );
|
|
v_iyaw_level = g_engfuncs.pfnRegisterVariable( "v_iyaw_level", "0.3", 0, "viewing inverse yaw level" );
|
|
v_iroll_level = g_engfuncs.pfnRegisterVariable( "v_iroll_level", "0.1", 0, "viewing inverse roll level" );
|
|
v_ipitch_level = g_engfuncs.pfnRegisterVariable( "v_iyaw_level", "0.3", 0, "viewing inverse pitch level" );
|
|
v_dark = g_engfuncs.pfnRegisterVariable( "v_dark", "0", 0, "gross hack to make first frame black. half-life legacy" );
|
|
|
|
cl_weaponlag = g_engfuncs.pfnRegisterVariable( "v_viewmodel_lag", "0.0", FCVAR_ARCHIVE, "add some lag to viewmodel like in HL2" );
|
|
cl_bobcycle = g_engfuncs.pfnRegisterVariable( "cl_bobcycle","0.8", 0, "bob full cycle" );
|
|
cl_bob = g_engfuncs.pfnRegisterVariable( "cl_bob", "0.01", 0, "bob value" );
|
|
cl_bobup = g_engfuncs.pfnRegisterVariable( "cl_bobup", "0.5", 0, "bob upper limit" );
|
|
cl_waterdist = g_engfuncs.pfnRegisterVariable( "cl_waterdist", "4", 0, "distance between viewofs and water plane" );
|
|
cl_chasedist = g_engfuncs.pfnRegisterVariable( "cl_chasedist", "112", 0, "max distance to chase camera" );
|
|
g_engfuncs.pfnAddCommand( "thirdperson", V_ThirdPerson, "change camera to thirdperson" );
|
|
g_engfuncs.pfnAddCommand( "firstperson", V_FirstPerson, "change camera to firstperson" );
|
|
}
|
|
|
|
//==========================
|
|
// V_StartPitchDrift
|
|
//==========================
|
|
void V_StartPitchDrift( void )
|
|
{
|
|
if( pd.laststop == GetClientTime())
|
|
return;
|
|
|
|
if( pd.nodrift || !pd.pitchvel )
|
|
{
|
|
pd.pitchvel = v_centerspeed->value;
|
|
pd.nodrift = 0;
|
|
pd.driftmove = 0;
|
|
}
|
|
}
|
|
|
|
//==========================
|
|
// V_StopPitchDrift
|
|
//==========================
|
|
void V_StopPitchDrift( void )
|
|
{
|
|
pd.laststop = GetClientTime();
|
|
pd.nodrift = 1;
|
|
pd.pitchvel = 0;
|
|
}
|
|
|
|
//==========================
|
|
// V_DriftPitch
|
|
//==========================
|
|
void V_DriftPitch( ref_params_t *pparams )
|
|
{
|
|
float delta, move;
|
|
|
|
if( pparams->movetype == MOVETYPE_NOCLIP || !pparams->onground || pparams->demoplayback )
|
|
{
|
|
pd.driftmove = 0;
|
|
pd.pitchvel = 0;
|
|
return;
|
|
}
|
|
|
|
if( pd.nodrift )
|
|
{
|
|
if( fabs( pparams->cmd->forwardmove ) < cl_forwardspeed->value )
|
|
pd.driftmove = 0;
|
|
else pd.driftmove += pparams->frametime;
|
|
if( pd.driftmove > v_centermove->value ) V_StartPitchDrift();
|
|
return;
|
|
}
|
|
|
|
delta = pparams->idealpitch - pparams->cl_viewangles[PITCH];
|
|
|
|
if( !delta )
|
|
{
|
|
pd.pitchvel = 0;
|
|
return;
|
|
}
|
|
|
|
move = pparams->frametime * pd.pitchvel;
|
|
pd.pitchvel += pparams->frametime * v_centerspeed->value;
|
|
|
|
if( delta > 0 )
|
|
{
|
|
if( move > delta )
|
|
{
|
|
pd.pitchvel = 0;
|
|
move = delta;
|
|
}
|
|
pparams->cl_viewangles[PITCH] += move;
|
|
}
|
|
else if( delta < 0 )
|
|
{
|
|
if( move > -delta )
|
|
{
|
|
pd.pitchvel = 0;
|
|
move = -delta;
|
|
}
|
|
pparams->cl_viewangles[PITCH] -= move;
|
|
}
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcFov
|
|
//==========================
|
|
float V_CalcFov( float fov_x, float width, float height )
|
|
{
|
|
// check to avoid division by zero
|
|
if( fov_x < 1 || fov_x > 179 )
|
|
{
|
|
ALERT( at_error, "V_CalcFov: invalid fov %g!\n", fov_x );
|
|
fov_x = 90;
|
|
}
|
|
|
|
float x = width / tan( DEG2RAD( fov_x ) * 0.5f );
|
|
float half_fov_y = atan( height / x );
|
|
return RAD2DEG( half_fov_y ) * 2;
|
|
}
|
|
|
|
//==========================
|
|
// V_DropPunchAngle
|
|
//==========================
|
|
void V_DropPunchAngle( float frametime, Vector &ev_punchangle )
|
|
{
|
|
float len;
|
|
|
|
len = ev_punchangle.Length();
|
|
ev_punchangle = ev_punchangle.Normalize();
|
|
|
|
len -= (10.0 + len * 0.5) * frametime;
|
|
len = max( len, 0.0 );
|
|
ev_punchangle *= len;
|
|
}
|
|
|
|
void V_CalcViewModelLag( Vector& origin, Vector& angles, Vector& original_angles )
|
|
{
|
|
static Vector m_vecLastFacing;
|
|
Vector vOriginalOrigin = origin;
|
|
Vector vOriginalAngles = angles;
|
|
|
|
// Calculate our drift
|
|
Vector forward;
|
|
AngleVectors( angles, forward, NULL, NULL );
|
|
|
|
if ( gpGlobals->frametime != 0.0f )
|
|
{
|
|
Vector vDifference;
|
|
|
|
vDifference = forward - m_vecLastFacing;
|
|
|
|
float flSpeed = 5.0f;
|
|
|
|
// If we start to lag too far behind, we'll increase the "catch up" speed.
|
|
// Solves the problem with fast cl_yawspeed, m_yaw or joysticks rotating quickly.
|
|
// The old code would slam lastfacing with origin causing the viewmodel to pop to a new position
|
|
float flDiff = vDifference.Length();
|
|
if (( flDiff > cl_weaponlag->value ) && ( cl_weaponlag->value > 0.0f ))
|
|
{
|
|
float flScale = flDiff / cl_weaponlag->value;
|
|
flSpeed *= flScale;
|
|
}
|
|
|
|
// FIXME: Needs to be predictable?
|
|
m_vecLastFacing = m_vecLastFacing + vDifference * ( flSpeed * gpGlobals->frametime );
|
|
// Make sure it doesn't grow out of control!!!
|
|
m_vecLastFacing = m_vecLastFacing.Normalize();
|
|
origin = origin + (vDifference * -1.0f) * 5.0f;
|
|
ASSERT( m_vecLastFacing.IsValid() );
|
|
}
|
|
|
|
Vector right, up;
|
|
AngleVectors( original_angles, forward, right, up );
|
|
|
|
float pitch = original_angles[PITCH];
|
|
|
|
if ( pitch > 180.0f )
|
|
{
|
|
pitch -= 360.0f;
|
|
}
|
|
else if ( pitch < -180.0f )
|
|
{
|
|
pitch += 360.0f;
|
|
}
|
|
|
|
if ( cl_weaponlag->value <= 0.0f )
|
|
{
|
|
origin = vOriginalOrigin;
|
|
angles = vOriginalAngles;
|
|
}
|
|
else
|
|
{
|
|
// FIXME: These are the old settings that caused too many exposed polys on some models
|
|
origin = origin + forward * ( -pitch * 0.035f );
|
|
origin = origin + right * ( -pitch * 0.03f );
|
|
origin = origin + up * ( -pitch * 0.02f );
|
|
}
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcGunAngle
|
|
//==========================
|
|
void V_CalcGunAngle( ref_params_t *pparams )
|
|
{
|
|
if( pparams->fov_x > 135 ) return;
|
|
|
|
edict_t *viewent = GetViewModel();
|
|
|
|
if( !viewent->v.modelindex ) return;
|
|
|
|
viewent->serialnumber = VIEWENT_INDEX; // viewentity are handled with special number. don't change this
|
|
viewent->v.effects |= EF_MINLIGHT;
|
|
|
|
viewent->v.angles[YAW] = pparams->viewangles[YAW] + pparams->crosshairangle[YAW];
|
|
viewent->v.angles[PITCH] = pparams->viewangles[PITCH] - pparams->crosshairangle[PITCH] * 0.25;
|
|
viewent->v.angles[ROLL] = pparams->viewangles[ROLL];
|
|
viewent->v.angles[ROLL] -= v_idlescale * sin(pparams->time * v_iroll_cycle->value) * v_iroll_level->value;
|
|
|
|
// don't apply all of the v_ipitch to prevent normally unseen parts of viewmodel from coming into view.
|
|
viewent->v.angles[PITCH] -= v_idlescale * sin(pparams->time * v_ipitch_cycle->value) * (v_ipitch_level->value * 0.5);
|
|
viewent->v.angles[YAW] -= v_idlescale * sin(pparams->time * v_iyaw_cycle->value) * v_iyaw_level->value;
|
|
}
|
|
|
|
//==========================
|
|
// V_PreRender
|
|
//==========================
|
|
void V_PreRender( ref_params_t *pparams )
|
|
{
|
|
// input
|
|
pparams->intermission = gHUD.m_iIntermission;
|
|
if( gHUD.m_iCameraMode ) pparams->flags |= RDF_THIRDPERSON;
|
|
else pparams->flags &= ~RDF_THIRDPERSON;
|
|
|
|
pparams->fov_x = gHUD.m_flFOV; // this is a final fov value
|
|
pparams->fov_y = V_CalcFov( pparams->fov_x, pparams->viewport[2], pparams->viewport[3] );
|
|
|
|
memset( pparams->blend, 0, sizeof( pparams->blend ));
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcGlobalFog
|
|
//==========================
|
|
void V_CalcGlobalFog( ref_params_t *pparams )
|
|
{
|
|
int bOn = (pparams->waterlevel < 2) && (gHUD.m_flStartDist > 0) && (gHUD.m_flEndDist > 0 && gHUD.m_flStartDist);
|
|
g_engfuncs.pTriAPI->Fog( gHUD.m_vecFogColor, gHUD.m_flStartDist, gHUD.m_flEndDist, bOn );
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcBob
|
|
//==========================
|
|
float V_CalcBob( ref_params_t *pparams )
|
|
{
|
|
static double bobtime;
|
|
static float bob;
|
|
static float lasttime;
|
|
float cycle;
|
|
Vector vel;
|
|
|
|
if( !pparams->onground || pparams->time == lasttime )
|
|
return bob;
|
|
lasttime = pparams->time;
|
|
|
|
bobtime += pparams->frametime;
|
|
cycle = bobtime - (int)( bobtime / cl_bobcycle->value ) * cl_bobcycle->value;
|
|
cycle /= cl_bobcycle->value;
|
|
|
|
if( cycle < cl_bobup->value ) cycle = M_PI * cycle / cl_bobup->value;
|
|
else cycle = M_PI + M_PI * ( cycle - cl_bobup->value )/( 1.0 - cl_bobup->value );
|
|
|
|
vel = pparams->simvel;
|
|
vel[2] = 0;
|
|
|
|
bob = sqrt( vel[0] * vel[0] + vel[1] * vel[1] ) * cl_bob->value;
|
|
bob = bob * 0.3 + bob * 0.7 * sin( cycle );
|
|
bob = min( bob, 4 );
|
|
bob = max( bob, -7 );
|
|
return bob;
|
|
}
|
|
|
|
//==========================
|
|
// V_AddIdle
|
|
//==========================
|
|
void V_AddIdle( ref_params_t *pparams )
|
|
{
|
|
pparams->viewangles[ROLL] += v_idlescale * sin(pparams->time*v_iroll_cycle->value) * v_iroll_level->value;
|
|
pparams->viewangles[PITCH] += v_idlescale * sin(pparams->time*v_ipitch_cycle->value) * v_ipitch_level->value;
|
|
pparams->viewangles[YAW] += v_idlescale * sin(pparams->time*v_iyaw_cycle->value) * v_iyaw_level->value;
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcViewRoll
|
|
//==========================
|
|
void V_CalcViewRoll( ref_params_t *pparams )
|
|
{
|
|
float sign, side, value;
|
|
edict_t *viewentity;
|
|
Vector right;
|
|
|
|
viewentity = GetEntityByIndex( pparams->viewentity );
|
|
if( !viewentity ) return;
|
|
|
|
if( pparams->health <= 0 && ( pparams->viewheight[2] != 0 ))
|
|
{
|
|
GetViewModel()->v.modelindex = 0; // clear the viewmodel
|
|
pparams->viewangles[ROLL] = 80; // dead view angle
|
|
return;
|
|
}
|
|
|
|
if( pparams->demoplayback ) return;
|
|
|
|
AngleVectors( viewentity->v.angles, NULL, right, NULL );
|
|
side = right.Dot( pparams->simvel );
|
|
sign = side < 0 ? -1 : 1;
|
|
side = fabs( side );
|
|
value = pparams->movevars->rollangle;
|
|
if( side < pparams->movevars->rollspeed )
|
|
side = side * value / pparams->movevars->rollspeed;
|
|
else side = value;
|
|
side = side * sign;
|
|
pparams->viewangles[ROLL] += side;
|
|
}
|
|
|
|
//==========================
|
|
// V_SetViewport
|
|
//==========================
|
|
void V_SetViewport( ref_params_t *pparams )
|
|
{
|
|
pparams->viewport[0] = 0;
|
|
pparams->viewport[1] = 0;
|
|
pparams->viewport[2] = VIEWPORT_SIZE;
|
|
pparams->viewport[3] = VIEWPORT_SIZE;
|
|
}
|
|
|
|
//==========================
|
|
// V_ResetViewport
|
|
//==========================
|
|
void V_ResetViewport( ref_params_t *pparams )
|
|
{
|
|
pparams->viewport[0] = 0;
|
|
pparams->viewport[1] = 0;
|
|
pparams->viewport[2] = ActualWidth;
|
|
pparams->viewport[2] &= ~7;
|
|
pparams->viewport[3] = ActualHeight;
|
|
pparams->viewport[3] &= ~1;
|
|
}
|
|
|
|
//==========================
|
|
// V_GetChaseOrigin
|
|
//==========================
|
|
void V_GetChaseOrigin( Vector angles, Vector origin, float distance, Vector &result )
|
|
{
|
|
Vector vecEnd;
|
|
Vector forward;
|
|
Vector vecStart;
|
|
TraceResult tr;
|
|
int maxLoops = 8;
|
|
|
|
edict_t *ent = NULL;
|
|
edict_t *ignoreent = NULL;
|
|
|
|
// trace back from the target using the player's view angles
|
|
AngleVectors( angles, forward, NULL, NULL );
|
|
forward *= -1;
|
|
vecStart = origin;
|
|
vecEnd.MA( distance, vecStart, forward );
|
|
|
|
while( maxLoops > 0 )
|
|
{
|
|
g_engfuncs.pfnTraceLine( vecStart, vecEnd, true, ignoreent, &tr );
|
|
if( tr.pHit == NULL ) break; // we hit the world or nothing, stop trace
|
|
|
|
ent = tr.pHit;
|
|
|
|
// hit non-player solid BSP, stop here
|
|
if( ent->v.solid == SOLID_BSP && !( ent->v.flags & FL_CLIENT ))
|
|
break;
|
|
|
|
// if close enought to end pos, stop, otherwise continue trace
|
|
if( tr.vecEndPos.Distance( vecEnd ) < 1.0f )
|
|
break;
|
|
else
|
|
{
|
|
ignoreent = tr.pHit; // ignore last hit entity
|
|
vecStart = tr.vecEndPos;
|
|
}
|
|
maxLoops--;
|
|
}
|
|
|
|
result.MA( 4, tr.vecEndPos, tr.vecPlaneNormal );
|
|
v_lastDistance = tr.vecEndPos.Distance( origin ); // real distance without offset
|
|
}
|
|
|
|
//==========================
|
|
// V_GetChasePos
|
|
//==========================
|
|
void V_GetChasePos( ref_params_t *pparams, edict_t *ent, float *cl_angles, Vector &origin, Vector &angles )
|
|
{
|
|
if( !ent )
|
|
{
|
|
// just copy a save in-map position
|
|
angles = Vector( 0, 0, 0 );
|
|
origin = Vector( 0, 0, 0 );
|
|
return;
|
|
}
|
|
if( cl_angles == NULL )
|
|
{
|
|
// no mouse angles given, use entity angles ( locked mode )
|
|
angles = ent->v.angles;
|
|
angles.x *= -1;
|
|
}
|
|
else angles = cl_angles;
|
|
|
|
// refresh the position
|
|
origin = ent->v.origin;
|
|
origin[2] += 28; // DEFAULT_VIEWHEIGHT - some offset
|
|
V_GetChaseOrigin( angles, origin, cl_chasedist->value, origin );
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcCameraRefdef
|
|
//==========================
|
|
void V_CalcCameraRefdef( ref_params_t *pparams )
|
|
{
|
|
if( pparams->intermission ) return; // disable in intermission mode
|
|
|
|
if( gHUD.viewFlags & CAMERA_ON )
|
|
{
|
|
// this is a viewentity sets with BUzer's custom camera code
|
|
edict_t *viewentity = GetEntityByIndex( gHUD.viewEntityIndex );
|
|
if( viewentity )
|
|
{
|
|
studiohdr_t *viewmonster = (studiohdr_t *)GetModelPtr( viewentity );
|
|
float m_fLerp = GetLerpFrac();
|
|
|
|
if( viewentity->v.movetype == MOVETYPE_STEP )
|
|
v_origin = LerpPoint( viewentity->v.oldorigin, viewentity->v.origin, m_fLerp );
|
|
else v_origin = viewentity->v.origin; // already interpolated
|
|
|
|
// calc monster view if supposed
|
|
if( gHUD.viewFlags & MONSTER_VIEW && viewmonster )
|
|
v_origin += viewmonster->eyeposition;
|
|
|
|
if( viewentity->v.movetype == MOVETYPE_STEP )
|
|
v_angles = LerpAngle( viewentity->v.oldangles, viewentity->v.angles, m_fLerp );
|
|
else v_angles = viewentity->v.angles; // already interpolated
|
|
|
|
if( gHUD.viewFlags & INVERSE_X ) // inverse X coordinate
|
|
v_angles[0] = -v_angles[0];
|
|
pparams->crosshairangle[ROLL] = 1; // crosshair is hided
|
|
|
|
// refresh position
|
|
pparams->viewangles = v_angles;
|
|
pparams->vieworg = v_origin;
|
|
}
|
|
}
|
|
else if( GetEntityByIndex( pparams->viewentity ) != GetLocalPlayer( ))
|
|
{
|
|
// this is a viewentity which sets by SET_VIEW builtin
|
|
edict_t *viewentity = GetEntityByIndex( pparams->viewentity );
|
|
if( viewentity )
|
|
{
|
|
studiohdr_t *viewmonster = (studiohdr_t *)GetModelPtr( viewentity );
|
|
float m_fLerp = GetLerpFrac();
|
|
|
|
if( viewentity->v.movetype == MOVETYPE_STEP )
|
|
v_origin = LerpPoint( viewentity->v.oldorigin, viewentity->v.origin, m_fLerp );
|
|
else v_origin = viewentity->v.origin; // already interpolated
|
|
|
|
// calc monster view if supposed
|
|
if( viewentity->v.flags & FL_MONSTER && viewmonster )
|
|
v_origin += viewmonster->eyeposition;
|
|
|
|
if( viewentity->v.movetype == MOVETYPE_STEP )
|
|
v_angles = LerpAngle( viewentity->v.oldangles, viewentity->v.angles, m_fLerp );
|
|
else v_angles = viewentity->v.angles; // already interpolated
|
|
|
|
if( viewentity->v.flags & FL_PROJECTILE ) // inverse X coordinate
|
|
v_angles[0] = -v_angles[0];
|
|
pparams->crosshairangle[ROLL] = 1; // crosshair is hided
|
|
|
|
// refresh position
|
|
pparams->viewangles = v_angles;
|
|
pparams->vieworg = v_origin;
|
|
}
|
|
}
|
|
else pparams->crosshairangle[ROLL] = 0; // show crosshair again
|
|
}
|
|
|
|
edict_t *V_FindIntermisionSpot( ref_params_t *pparams )
|
|
{
|
|
edict_t *ent;
|
|
int spotindex[16]; // max number of intermission spot
|
|
int k = 0, j = 0;
|
|
|
|
// found intermission points
|
|
for( int i = 0; i < pparams->num_entities; i++ )
|
|
{
|
|
ent = GetEntityByIndex( i );
|
|
if( ent && !stricmp( STRING( ent->v.classname ), "info_intermission" ))
|
|
{
|
|
if( j > 15 ) break; // spotlist is full
|
|
spotindex[j] = ent->serialnumber; // save entindex
|
|
j++;
|
|
}
|
|
}
|
|
|
|
// ok, we have list of intermission spots
|
|
if( j )
|
|
{
|
|
if( j > 1 ) k = RANDOM_LONG( 0, j - 1 );
|
|
ent = GetEntityByIndex( spotindex[k] );
|
|
}
|
|
else ent = GetLocalPlayer(); // just get view from player
|
|
|
|
return ent;
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcIntermisionRefdef
|
|
//==========================
|
|
void V_CalcIntermisionRefdef( ref_params_t *pparams )
|
|
{
|
|
if( !pparams->intermission ) return;
|
|
|
|
edict_t *view;
|
|
float old;
|
|
|
|
if( !spot ) spot = V_FindIntermisionSpot( pparams );
|
|
view = GetViewModel();
|
|
|
|
// need to lerping position ?
|
|
pparams->vieworg = spot->v.origin;
|
|
pparams->viewangles = spot->v.angles;
|
|
view->v.modelindex = 0;
|
|
|
|
// allways idle in intermission
|
|
old = v_idlescale;
|
|
v_idlescale = 1;
|
|
V_AddIdle( pparams );
|
|
|
|
v_idlescale = old;
|
|
v_cl_angles = pparams->cl_viewangles;
|
|
v_origin = pparams->vieworg;
|
|
v_angles = pparams->viewangles;
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcShake
|
|
//==========================
|
|
void V_CalcShake( void )
|
|
{
|
|
float frametime;
|
|
int i;
|
|
float fraction, freq;
|
|
|
|
if( gHUD.m_Shake.time == 0 )
|
|
return;
|
|
|
|
if(( gHUD.m_flTime > gHUD.m_Shake.time ) || gHUD.m_Shake.duration <= 0 || gHUD.m_Shake.amplitude <= 0 || gHUD.m_Shake.frequency <= 0 )
|
|
{
|
|
memset( &gHUD.m_Shake, 0, sizeof( gHUD.m_Shake ));
|
|
return;
|
|
}
|
|
|
|
frametime = gHUD.m_flTimeDelta;
|
|
|
|
if( gHUD.m_flTime > gHUD.m_Shake.nextShake )
|
|
{
|
|
// higher frequency means we recalc the extents more often and perturb the display again
|
|
gHUD.m_Shake.nextShake = gHUD.m_flTime + (1.0f / gHUD.m_Shake.frequency);
|
|
|
|
// Compute random shake extents (the shake will settle down from this)
|
|
for( i = 0; i < 3; i++ )
|
|
{
|
|
gHUD.m_Shake.offset[i] = RANDOM_FLOAT( -gHUD.m_Shake.amplitude, gHUD.m_Shake.amplitude );
|
|
}
|
|
gHUD.m_Shake.angle = RANDOM_FLOAT( -gHUD.m_Shake.amplitude * 0.25, gHUD.m_Shake.amplitude * 0.25 );
|
|
}
|
|
|
|
// ramp down amplitude over duration (fraction goes from 1 to 0 linearly with slope 1/duration)
|
|
fraction = ( gHUD.m_Shake.time - gHUD.m_flTime ) / gHUD.m_Shake.duration;
|
|
|
|
// ramp up frequency over duration
|
|
if( fraction )
|
|
{
|
|
freq = (gHUD.m_Shake.frequency / fraction);
|
|
}
|
|
else
|
|
{
|
|
freq = 0;
|
|
}
|
|
|
|
// square fraction to approach zero more quickly
|
|
fraction *= fraction;
|
|
|
|
// Sine wave that slowly settles to zero
|
|
fraction = fraction * sin( gHUD.m_flTime * freq );
|
|
|
|
// add to view origin
|
|
gHUD.m_Shake.appliedOffset = gHUD.m_Shake.offset * fraction;
|
|
|
|
// add to roll
|
|
gHUD.m_Shake.appliedAngle = gHUD.m_Shake.angle * fraction;
|
|
|
|
// drop amplitude a bit, less for higher frequency shakes
|
|
float localAmp = gHUD.m_Shake.amplitude * ( frametime / ( gHUD.m_Shake.duration * gHUD.m_Shake.frequency ));
|
|
gHUD.m_Shake.amplitude -= localAmp;
|
|
}
|
|
|
|
//==========================
|
|
// V_ApplyShake
|
|
//==========================
|
|
void V_ApplyShake( Vector& origin, Vector& angles, float factor )
|
|
{
|
|
origin.MA( factor, origin, gHUD.m_Shake.appliedOffset );
|
|
angles.z += gHUD.m_Shake.appliedAngle * factor;
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcThirdPersonRefdef
|
|
//==========================
|
|
void V_CalcThirdPersonRefdef( ref_params_t *pparams )
|
|
{
|
|
// passed only in third person
|
|
if( gHUD.m_iCameraMode == 0 || pparams->intermission )
|
|
return;
|
|
|
|
// clear viewmodel for thirdperson
|
|
edict_t *viewent = GetViewModel();
|
|
viewent->v.modelindex = 0;
|
|
|
|
// get current values
|
|
v_cl_angles = pparams->cl_viewangles;
|
|
v_angles = pparams->viewangles;
|
|
v_origin = pparams->vieworg;
|
|
|
|
V_GetChasePos( pparams, GetLocalPlayer(), v_cl_angles, v_origin, v_angles );
|
|
|
|
// write back new values
|
|
pparams->cl_viewangles = v_cl_angles;
|
|
pparams->viewangles = v_angles;
|
|
pparams->vieworg = v_origin;
|
|
|
|
// apply shake for thirdperson too
|
|
V_CalcShake();
|
|
V_ApplyShake( pparams->vieworg, pparams->viewangles, 1.0 );
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcSendOrigin
|
|
//==========================
|
|
void V_CalcSendOrigin( ref_params_t *pparams )
|
|
{
|
|
// never let view origin sit exactly on a node line, because a water plane can
|
|
// dissapear when viewed with the eye exactly on it.
|
|
pparams->vieworg[0] += 1.0 / 32;
|
|
pparams->vieworg[1] += 1.0 / 32;
|
|
pparams->vieworg[2] += 1.0 / 32;
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcWaterLevel
|
|
//==========================
|
|
float V_CalcWaterLevel( ref_params_t *pparams )
|
|
{
|
|
float waterOffset = 0;
|
|
|
|
if( pparams->waterlevel >= 2 )
|
|
{
|
|
int i, contents;
|
|
float waterDist = cl_waterdist->value;
|
|
Vector point;
|
|
|
|
edict_t *pwater = g_engfuncs.pfnWaterEntity( pparams->simorg );
|
|
if( pwater ) waterDist += ( pwater->v.scale * 16 );
|
|
|
|
point = pparams->vieworg;
|
|
|
|
// eyes are above water, make sure we're above the waves
|
|
if( pparams->waterlevel == 2 )
|
|
{
|
|
point[2] -= waterDist;
|
|
for( i = 0; i < waterDist; i++ )
|
|
{
|
|
contents = POINT_CONTENTS( point );
|
|
if( contents > CONTENTS_WATER ) break;
|
|
point[2] += 1;
|
|
}
|
|
waterOffset = (point[2] + waterDist) - pparams->vieworg[2];
|
|
}
|
|
else
|
|
{
|
|
// eyes are under water. Make sure we're far enough under
|
|
point[2] += waterDist;
|
|
for( i = 0; i < waterDist; i++ )
|
|
{
|
|
contents = POINT_CONTENTS( point );
|
|
if( contents <= CONTENTS_WATER ) break;
|
|
point[2] -= 1;
|
|
}
|
|
waterOffset = (point[2] - waterDist) - pparams->vieworg[2];
|
|
}
|
|
}
|
|
|
|
// underwater refraction
|
|
if( pparams->waterlevel == 3 )
|
|
{
|
|
float f = sin( pparams->time * 0.4 * (M_PI * 2.7));
|
|
pparams->fov_x += f;
|
|
pparams->fov_y -= f;
|
|
}
|
|
|
|
pparams->vieworg[2] += waterOffset;
|
|
return waterOffset;
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcScrOffset
|
|
//==========================
|
|
void V_CalcScrOffset( ref_params_t *pparams )
|
|
{
|
|
// don't allow cheats in multiplayer
|
|
if( pparams->maxclients > 1 ) return;
|
|
|
|
for( int i = 0; i < 3; i++ )
|
|
{
|
|
pparams->vieworg[i] += scr_ofsx->value * pparams->forward[i];
|
|
pparams->vieworg[i] += scr_ofsy->value * pparams->right[i];
|
|
pparams->vieworg[i] += scr_ofsz->value * pparams->up[i];
|
|
}
|
|
}
|
|
|
|
//==========================
|
|
// V_InterpolatePos
|
|
//==========================
|
|
void V_InterpolatePos( ref_params_t *pparams )
|
|
{
|
|
edict_t *view;
|
|
|
|
// view is the weapon model (only visible from inside body )
|
|
view = GetViewModel();
|
|
|
|
if( cl_vsmoothing->value && ( pparams->smoothing && ( pparams->maxclients > 1 )))
|
|
{
|
|
int i, foundidx;
|
|
float t;
|
|
|
|
if( cl_vsmoothing->value < 0.0 ) CVAR_SET_FLOAT( "cl_vsmoothing", 0 );
|
|
t = pparams->time - cl_vsmoothing->value;
|
|
for( i = 1; i < ORIGIN_MASK; i++ )
|
|
{
|
|
foundidx = ViewInterp.CurrentOrigin - 1 - i;
|
|
if( ViewInterp.OriginTime[foundidx & ORIGIN_MASK] <= t ) break;
|
|
}
|
|
|
|
if( i < ORIGIN_MASK && ViewInterp.OriginTime[foundidx & ORIGIN_MASK] != 0.0 )
|
|
{
|
|
// interpolate
|
|
Vector delta;
|
|
double frac;
|
|
double dt;
|
|
Vector neworg;
|
|
|
|
dt = ViewInterp.OriginTime[(foundidx + 1) & ORIGIN_MASK] - ViewInterp.OriginTime[foundidx & ORIGIN_MASK];
|
|
if ( dt > 0.0 )
|
|
{
|
|
frac = ( t - ViewInterp.OriginTime[foundidx & ORIGIN_MASK] ) / dt;
|
|
frac = min( 1.0, frac );
|
|
delta = ViewInterp.Origins[(foundidx + 1) & ORIGIN_MASK] - ViewInterp.Origins[foundidx & ORIGIN_MASK];
|
|
neworg.MA( frac, ViewInterp.Origins[foundidx & ORIGIN_MASK], delta );
|
|
|
|
// don't interpolate large changes
|
|
if( delta.Length() < 64 )
|
|
{
|
|
delta = neworg - pparams->simorg;
|
|
pparams->simorg += delta;
|
|
pparams->vieworg += delta;
|
|
view->v.origin += delta;
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
float V_CalcStairSmoothValue( float oldz, float newz, float smoothtime, float stepheight )
|
|
{
|
|
if( oldz < newz )
|
|
return bound( newz - stepheight, oldz + smoothtime * cl_stairsmooth->value, newz );
|
|
else if( oldz > newz )
|
|
return bound( newz, oldz - smoothtime * cl_stairsmooth->value, newz + stepheight );
|
|
return 0.0;
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcFirstPersonRefdef
|
|
//==========================
|
|
void V_CalcFirstPersonRefdef( ref_params_t *pparams )
|
|
{
|
|
// don't pass in thirdperson or intermission
|
|
if( gHUD.m_iCameraMode || pparams->intermission )
|
|
return;
|
|
|
|
Vector angles;
|
|
float bob, waterOffset;
|
|
static float lasttime;
|
|
edict_t *view = GetViewModel();
|
|
int i;
|
|
|
|
V_DriftPitch( pparams );
|
|
bob = V_CalcBob( pparams );
|
|
|
|
// refresh the position
|
|
pparams->vieworg = pparams->simorg;
|
|
pparams->vieworg[2] += ( bob );
|
|
pparams->vieworg += pparams->viewheight;
|
|
|
|
pparams->viewangles = pparams->cl_viewangles;
|
|
|
|
V_CalcShake();
|
|
V_ApplyShake( pparams->vieworg, pparams->viewangles, 1.0 );
|
|
|
|
V_CalcSendOrigin( pparams );
|
|
waterOffset = V_CalcWaterLevel( pparams );
|
|
V_CalcViewRoll( pparams );
|
|
V_AddIdle( pparams );
|
|
|
|
// offsets
|
|
angles = pparams->viewangles;
|
|
AngleVectors( angles, pparams->forward, pparams->right, pparams->up );
|
|
V_CalcScrOffset( pparams );
|
|
|
|
Vector lastAngles;
|
|
|
|
lastAngles = view->v.angles = pparams->cl_viewangles;
|
|
V_CalcGunAngle( pparams );
|
|
|
|
// use predicted origin as view origin.
|
|
view->v.origin = pparams->simorg;
|
|
view->v.origin[2] += ( waterOffset );
|
|
view->v.origin += pparams->viewheight;
|
|
|
|
// Let the viewmodel shake at about 10% of the amplitude
|
|
V_ApplyShake( view->v.origin, view->v.angles, 0.9 );
|
|
|
|
for( i = 0; i < 3; i++ )
|
|
view->v.origin[i] += bob * 0.4 * pparams->forward[i];
|
|
view->v.origin[2] += bob;
|
|
|
|
view->v.angles[YAW] -= bob * 0.5;
|
|
view->v.angles[ROLL] -= bob * 1;
|
|
view->v.angles[PITCH] -= bob * 0.3;
|
|
view->v.origin[2] -= 1;
|
|
|
|
// add lag
|
|
V_CalcViewModelLag( view->v.origin, view->v.angles, lastAngles );
|
|
|
|
// fudge position around to keep amount of weapon visible
|
|
// roughly equal with different FOV
|
|
if( pparams->viewsize == 110 ) view->v.origin[2] += 1;
|
|
else if( pparams->viewsize == 100 ) view->v.origin[2] += 2;
|
|
else if( pparams->viewsize == 90 ) view->v.origin[2] += 1;
|
|
else if( pparams->viewsize == 80 ) view->v.origin[2] += 0.5;
|
|
|
|
pparams->viewangles += pparams->punchangle;
|
|
pparams->viewangles += ev_punchangle;
|
|
|
|
V_DropPunchAngle( pparams->frametime, ev_punchangle );
|
|
|
|
static float stairoldtime = 0;
|
|
static float old_client_z = 0;
|
|
static float old_weapon_z = 0;
|
|
|
|
// calculate how much time has passed since the last V_CalcRefdef
|
|
float smoothtime = bound( 0.0, pparams->time - stairoldtime, 0.1 );
|
|
stairoldtime = pparams->time;
|
|
|
|
// smooth stair stepping, but only if onground and enabled
|
|
if( !pparams->smoothing || !pparams->onground || cl_stairsmooth->value <= 0 )
|
|
{
|
|
old_client_z = pparams->vieworg[2];
|
|
old_weapon_z = view->v.origin[2];
|
|
}
|
|
else
|
|
{
|
|
float result;
|
|
float stepheight = pparams->movevars->stepsize;
|
|
|
|
result = V_CalcStairSmoothValue( old_client_z, pparams->vieworg[2], smoothtime, stepheight );
|
|
if( result ) pparams->vieworg[2] = old_client_z = result;
|
|
result = V_CalcStairSmoothValue( old_weapon_z, view->v.origin[2], smoothtime, stepheight );
|
|
if( result ) view->v.origin[2] = old_weapon_z = result;
|
|
}
|
|
|
|
static Vector lastorg;
|
|
Vector delta;
|
|
|
|
delta = pparams->simorg - lastorg;
|
|
|
|
if( delta.Length() != 0.0 )
|
|
{
|
|
ViewInterp.Origins[ViewInterp.CurrentOrigin & ORIGIN_MASK] = pparams->simorg;
|
|
ViewInterp.OriginTime[ViewInterp.CurrentOrigin & ORIGIN_MASK] = pparams->time;
|
|
ViewInterp.CurrentOrigin++;
|
|
|
|
lastorg = pparams->simorg;
|
|
}
|
|
|
|
// probably not needs in Xash3D
|
|
// V_InterpolatePos( pparams ); // smooth predicting moving in multiplayer
|
|
|
|
lasttime = pparams->time;
|
|
v_origin = pparams->vieworg;
|
|
}
|
|
|
|
//==========================
|
|
// V_CalcScreenBlend
|
|
//==========================
|
|
void V_CalcScreenBlend( ref_params_t *pparams )
|
|
{
|
|
#if 0
|
|
// FIXME: get some code from q1
|
|
pparams->blend[0] = 0.0f;
|
|
pparams->blend[1] = 0.0f;
|
|
pparams->blend[2] = 0.0f;
|
|
pparams->blend[3] = 1.0f;
|
|
#endif
|
|
}
|
|
|
|
void V_CalcRefdef( ref_params_t *pparams )
|
|
{
|
|
V_PreRender( pparams );
|
|
V_CalcGlobalFog( pparams );
|
|
V_ResetViewport( pparams );
|
|
V_CalcFirstPersonRefdef( pparams );
|
|
V_CalcThirdPersonRefdef( pparams );
|
|
V_CalcIntermisionRefdef( pparams );
|
|
V_CalcCameraRefdef( pparams );
|
|
V_CalcScreenBlend( pparams );
|
|
|
|
} |