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view.c
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/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
// view.c -- player eye positioning
#include "quakedef.h"
#ifdef PSP_VFPU
#include <pspmath.h>
#endif
/*
The view is allowed to move slightly from it's true position for bobbing,
but if it exceeds 8 pixels linear distance (spherical, not box), the list of
entities sent from the server may not include everything in the pvs, especially
when crossing a water boudnary.
*/
cvar_t lcd_x = {"lcd_x","0"};
cvar_t lcd_yaw = {"lcd_yaw","0"};
cvar_t scr_ofsx = {"scr_ofsx","0", false};
cvar_t scr_ofsy = {"scr_ofsy","0", false};
cvar_t scr_ofsz = {"scr_ofsz","0", false};
cvar_t cl_rollspeed = {"cl_rollspeed", "200"};
cvar_t cl_rollangle = {"cl_rollangle", "2.0"};
cvar_t cl_bob = {"cl_bob","0.02", false};
cvar_t cl_bobcycle = {"cl_bobcycle","0.6", false};
cvar_t cl_bobup = {"cl_bobup","0.5", false};
cvar_t v_kicktime = {"v_kicktime", "0.5", false};
cvar_t v_kickroll = {"v_kickroll", "0.6", false};
cvar_t v_kickpitch = {"v_kickpitch", "0.6", false};
cvar_t v_iyaw_cycle = {"v_iyaw_cycle", "2", false};
cvar_t v_iroll_cycle = {"v_iroll_cycle", "0.5", false};
cvar_t v_ipitch_cycle = {"v_ipitch_cycle", "1", false};
cvar_t v_iyaw_level = {"v_iyaw_level", "0.3", false};
cvar_t v_iroll_level = {"v_iroll_level", "0.1", false};
cvar_t v_ipitch_level = {"v_ipitch_level", "0.3", false};
cvar_t v_idlescale = {"v_idlescale", "0", false};
cvar_t crosshair = {"crosshair", "0", true};
cvar_t cl_crossx = {"cl_crossx", "0", false};
cvar_t cl_crossy = {"cl_crossy", "0", false};
cvar_t gl_cshiftpercent = {"gl_cshiftpercent", "50", false};
float v_dmg_time, v_dmg_roll, v_dmg_pitch;
extern int in_forward, in_forward2, in_back;
/*
===============
V_CalcRoll
Used by view and sv_user
===============
*/
vec3_t forward, right, up;
float V_CalcRoll (vec3_t angles, vec3_t velocity)
{
float sign;
float side;
float value;
AngleVectors (angles, forward, right, up);
side = DotProduct (velocity, right);
sign = side < 0 ? -1 : 1;
side = fabsf(side);
value = cl_rollangle.value;
// if (cl.inwater)
// value *= 6;
if (side < cl_rollspeed.value)
side = side * value / cl_rollspeed.value;
else
side = value;
return side*sign;
}
/*
===============
V_CalcBob
===============
*/
float V_CalcBob (void)
{
float bob;
float cycle;
cycle = cl.time - (int)(cl.time/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);
// bob is proportional to velocity in the xy plane
// (don't count Z, or jumping messes it up)
bob = sqrtf(cl.velocity[0]*cl.velocity[0] + cl.velocity[1]*cl.velocity[1]) * cl_bob.value;
//Con_Printf ("speed: %5.1f\n", Length(cl.velocity));
bob = bob*0.3 + bob*0.7*sinf(cycle);
if (bob > 4)
bob = 4;
else if (bob < -7)
bob = -7;
return bob;
}
//=============================================================================
cvar_t v_centermove = {"v_centermove", "0.15", false};
cvar_t v_centerspeed = {"v_centerspeed","500"};
void V_StartPitchDrift (void)
{
#if 1
if (cl.laststop == cl.time)
{
return; // something else is keeping it from drifting
}
#endif
if (cl.nodrift || !cl.pitchvel)
{
cl.pitchvel = v_centerspeed.value;
cl.nodrift = false;
cl.driftmove = 0;
}
}
void V_StopPitchDrift (void)
{
cl.laststop = cl.time;
cl.nodrift = true;
cl.pitchvel = 0;
}
/*
===============
V_DriftPitch
Moves the client pitch angle towards cl.idealpitch sent by the server.
If the user is adjusting pitch manually, either with lookup/lookdown,
mlook and mouse, or klook and keyboard, pitch drifting is constantly stopped.
Drifting is enabled when the center view key is hit, mlook is released and
lookspring is non 0, or when
===============
*/
void V_DriftPitch (void)
{
float delta, move;
if (noclip_anglehack || !cl.onground || cls.demoplayback )
{
cl.driftmove = 0;
cl.pitchvel = 0;
return;
}
// don't count small mouse motion
if (cl.nodrift)
{
#ifdef PSP_VFPU
if ( vfpu_fabsf(cl.cmd.forwardmove) < cl_forwardspeed.value)
#else
if ( fabsf(cl.cmd.forwardmove) < cl_forwardspeed.value)
#endif
cl.driftmove = 0;
else
cl.driftmove += host_frametime;
if ( cl.driftmove > v_centermove.value)
{
V_StartPitchDrift ();
}
return;
}
delta = cl.idealpitch - cl.viewangles[PITCH];
if (!delta)
{
cl.pitchvel = 0;
return;
}
move = host_frametime * cl.pitchvel;
cl.pitchvel += host_frametime * v_centerspeed.value;
//Con_Printf ("move: %f (%f)\n", move, host_frametime);
if (delta > 0)
{
if (move > delta)
{
cl.pitchvel = 0;
move = delta;
}
cl.viewangles[PITCH] += move;
}
else if (delta < 0)
{
if (move > -delta)
{
cl.pitchvel = 0;
move = -delta;
}
cl.viewangles[PITCH] -= move;
}
}
/*
==============================================================================
PALETTE FLASHES
==============================================================================
*/
cshift_t cshift_empty = { {130,80,50}, 0 };
cshift_t cshift_water = { {130,80,50}, 128 };
cshift_t cshift_slime = { {0,25,5}, 150 };
cshift_t cshift_lava = { {255,80,0}, 150 };
cvar_t v_gamma = {"gamma", "1", true};
cvar_t v_texgamma = {"texgamma", "2.2", true};
byte gammatable[256]; // palette is sent through this
byte texgammatable[256];
#if defined(GLQUAKE) || defined(PSP_HARDWARE_VIDEO)
byte ramps[3][256];
float v_blend[4]; // rgba 0.0 - 1.0
#endif // GLQUAKE
#if 0
void BuildGammaTable (float g)
{
int i, inf;
if (g == 1.0)
{
for (i=0 ; i<256 ; i++)
gammatable[i] = i;
return;
}
for (i=0 ; i<256 ; i++)
{
inf = 255 * powf ( (i+0.5f)/255.5f , g ) + 0.5;
if (inf < 0)
inf = 0;
if (inf > 255)
inf = 255;
gammatable[i] = inf;
}
}
#else
inline byte TextureToTexGamma( byte b )
{
b = bound( 0, b, 255 );
return texgammatable[b];
}
void BuildGammaTable( float gamma, float texGamma )
{
int i, inf;
float g1, g = texGamma;
double f;
g = bound( 1.8f, g, 3.0f );
gamma = bound( 1.8f, gamma, 3.0f );
g = 1.0f / g;
g1 = gamma * g;
for( i = 0; i < 256; i++ )
{
inf = 255 * pow( i / 255.f, g1 );
texgammatable[i] = bound( 0, inf, 255 );
}
for( i = 0; i < 256; i++ )
{
f = 255.0 * pow(( float )i / 255.0f, 2.2f / gamma );
inf = (int)(f + 0.5f);
gammatable[i] = bound( 0, inf, 255 );
}
}
#endif
/*
=================
V_CheckGamma
=================
*/
qboolean V_CheckGamma (void)
{
static float oldgammavalue;
static float oldtexgammaval;
if (v_gamma.value == oldgammavalue || v_texgamma.value == oldtexgammaval)
return false;
oldgammavalue = v_gamma.value;
oldtexgammaval = v_texgamma.value;
BuildGammaTable (v_gamma.value, v_texgamma.value);
vid.recalc_refdef = 1; // force a surface cache flush
return true;
}
/*
===============
V_ParseDamage
===============
*/
void V_ParseDamage (void)
{
int armor, blood;
vec3_t from;
int i;
vec3_t forward, right, up;
entity_t *ent;
float side;
float count;
armor = MSG_ReadByte ();
blood = MSG_ReadByte ();
for (i=0 ; i<3 ; i++)
from[i] = MSG_ReadCoord ();
count = blood*0.5 + armor*0.5;
if (count < 10)
count = 10;
cl.faceanimtime = cl.time + 0.2; // but sbar face into pain frame
cl.cshifts[CSHIFT_DAMAGE].percent += 3*count;
if (cl.cshifts[CSHIFT_DAMAGE].percent < 0)
cl.cshifts[CSHIFT_DAMAGE].percent = 0;
if (cl.cshifts[CSHIFT_DAMAGE].percent > 150)
cl.cshifts[CSHIFT_DAMAGE].percent = 150;
if (armor > blood)
{
cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 200;
cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 100;
cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 100;
}
else if (armor)
{
cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 220;
cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 50;
cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 50;
}
else
{
cl.cshifts[CSHIFT_DAMAGE].destcolor[0] = 255;
cl.cshifts[CSHIFT_DAMAGE].destcolor[1] = 0;
cl.cshifts[CSHIFT_DAMAGE].destcolor[2] = 0;
}
//
// calculate view angle kicks
//
ent = &cl_entities[cl.viewentity];
VectorSubtract (from, ent->origin, from);
VectorNormalize (from);
AngleVectors (ent->angles, forward, right, up);
side = DotProduct (from, right);
v_dmg_roll = count*side*v_kickroll.value;
side = DotProduct (from, forward);
v_dmg_pitch = count*side*v_kickpitch.value;
v_dmg_time = v_kicktime.value;
}
/*
==================
V_cshift_f
==================
*/
void V_cshift_f (void)
{
cshift_empty.destcolor[0] = atoi(Cmd_Argv(1));
cshift_empty.destcolor[1] = atoi(Cmd_Argv(2));
cshift_empty.destcolor[2] = atoi(Cmd_Argv(3));
cshift_empty.percent = atoi(Cmd_Argv(4));
}
/*
==================
V_BonusFlash_f
When you run over an item, the server sends this command
==================
*/
void V_BonusFlash_f (void)
{
cl.cshifts[CSHIFT_BONUS].destcolor[0] = 215;
cl.cshifts[CSHIFT_BONUS].destcolor[1] = 186;
cl.cshifts[CSHIFT_BONUS].destcolor[2] = 69;
cl.cshifts[CSHIFT_BONUS].percent = 50;
}
/*
=============
V_SetContentsColor
Underwater, lava, etc each has a color shift
=============
*/
void V_SetContentsColor (int contents)
{
switch (contents)
{
case CONTENTS_EMPTY:
case CONTENTS_SOLID:
cl.cshifts[CSHIFT_CONTENTS] = cshift_empty;
break;
case CONTENTS_LAVA:
cl.cshifts[CSHIFT_CONTENTS] = cshift_lava;
break;
case CONTENTS_SLIME:
cl.cshifts[CSHIFT_CONTENTS] = cshift_slime;
break;
default:
cl.cshifts[CSHIFT_CONTENTS] = cshift_water;
}
}
/*
=============
V_CalcPowerupCshift
=============
*/
void V_CalcPowerupCshift (void)
{
if (cl.items & IT_QUAD)
{
cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 0;
cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 255;
cl.cshifts[CSHIFT_POWERUP].percent = 30;
}
else if (cl.items & IT_SUIT)
{
cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 0;
cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
cl.cshifts[CSHIFT_POWERUP].percent = 20;
}
else if (cl.items & IT_INVISIBILITY)
{
cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 100;
cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 100;
cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 100;
cl.cshifts[CSHIFT_POWERUP].percent = 100;
}
else if (cl.items & IT_INVULNERABILITY)
{
cl.cshifts[CSHIFT_POWERUP].destcolor[0] = 255;
cl.cshifts[CSHIFT_POWERUP].destcolor[1] = 255;
cl.cshifts[CSHIFT_POWERUP].destcolor[2] = 0;
cl.cshifts[CSHIFT_POWERUP].percent = 30;
}
else
cl.cshifts[CSHIFT_POWERUP].percent = 0;
}
/*
=============
V_CalcBlend
=============
*/
#if defined(GLQUAKE) || defined(PSP_HARDWARE_VIDEO)
void V_CalcBlend (void)
{
float r, g, b, a, a2;
int j;
r = 0;
g = 0;
b = 0;
a = 0;
for (j=0 ; j<NUM_CSHIFTS ; j++)
{
if (!gl_cshiftpercent.value)
continue;
a2 = ((cl.cshifts[j].percent * gl_cshiftpercent.value) / 100.0) / 255.0;
// a2 = cl.cshifts[j].percent/255.0;
if (!a2)
continue;
a = a + a2*(1-a);
//Con_Printf ("j:%i a:%f\n", j, a);
a2 = a2/a;
r = r*(1-a2) + cl.cshifts[j].destcolor[0]*a2;
g = g*(1-a2) + cl.cshifts[j].destcolor[1]*a2;
b = b*(1-a2) + cl.cshifts[j].destcolor[2]*a2;
}
v_blend[0] = r/255.0;
v_blend[1] = g/255.0;
v_blend[2] = b/255.0;
v_blend[3] = a;
if (v_blend[3] > 1)
v_blend[3] = 1;
if (v_blend[3] < 0)
v_blend[3] = 0;
}
#endif
/*
=============
V_UpdatePalette
=============
*/
#if defined(GLQUAKE) || defined(PSP_HARDWARE_VIDEO)
void V_UpdatePalette (void)
{
int i, j;
qboolean new;
byte *basepal, *newpal;
byte pal[768];
float r,g,b,a;
int ir, ig, ib;
qboolean force;
V_CalcPowerupCshift ();
new = false;
for (i=0 ; i<NUM_CSHIFTS ; i++)
{
if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent)
{
new = true;
cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
}
for (j=0 ; j<3 ; j++)
if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j])
{
new = true;
cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
}
}
// drop the damage value
cl.cshifts[CSHIFT_DAMAGE].percent -= host_frametime*150;
if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
cl.cshifts[CSHIFT_DAMAGE].percent = 0;
// drop the bonus value
cl.cshifts[CSHIFT_BONUS].percent -= host_frametime*100;
if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
cl.cshifts[CSHIFT_BONUS].percent = 0;
force = V_CheckGamma ();
if (!new && !force)
return;
V_CalcBlend ();
a = v_blend[3];
r = 255*v_blend[0]*a;
g = 255*v_blend[1]*a;
b = 255*v_blend[2]*a;
a = 1-a;
for (i=0 ; i<256 ; i++)
{
ir = i*a + r;
ig = i*a + g;
ib = i*a + b;
if (ir > 255)
ir = 255;
if (ig > 255)
ig = 255;
if (ib > 255)
ib = 255;
ramps[0][i] = gammatable[ir];
ramps[1][i] = gammatable[ig];
ramps[2][i] = gammatable[ib];
}
basepal = host_basepal;
newpal = pal;
for (i=0 ; i<256 ; i++)
{
ir = basepal[0];
ig = basepal[1];
ib = basepal[2];
basepal += 3;
newpal[0] = ramps[0][ir];
newpal[1] = ramps[1][ig];
newpal[2] = ramps[2][ib];
newpal += 3;
}
VID_ShiftPalette (pal);
}
#else // !GLQUAKE
void V_UpdatePalette (void)
{
int i, j;
qboolean new;
byte *basepal, *newpal;
byte pal[768];
int r,g,b;
qboolean force;
V_CalcPowerupCshift ();
new = false;
for (i=0 ; i<NUM_CSHIFTS ; i++)
{
if (cl.cshifts[i].percent != cl.prev_cshifts[i].percent)
{
new = true;
cl.prev_cshifts[i].percent = cl.cshifts[i].percent;
}
for (j=0 ; j<3 ; j++)
if (cl.cshifts[i].destcolor[j] != cl.prev_cshifts[i].destcolor[j])
{
new = true;
cl.prev_cshifts[i].destcolor[j] = cl.cshifts[i].destcolor[j];
}
}
// drop the damage value
cl.cshifts[CSHIFT_DAMAGE].percent -= host_frametime*150;
if (cl.cshifts[CSHIFT_DAMAGE].percent <= 0)
cl.cshifts[CSHIFT_DAMAGE].percent = 0;
// drop the bonus value
cl.cshifts[CSHIFT_BONUS].percent -= host_frametime*100;
if (cl.cshifts[CSHIFT_BONUS].percent <= 0)
cl.cshifts[CSHIFT_BONUS].percent = 0;
force = V_CheckGamma ();
if (!new && !force)
return;
basepal = host_basepal;
newpal = pal;
for (i=0 ; i<256 ; i++)
{
r = basepal[0];
g = basepal[1];
b = basepal[2];
basepal += 3;
for (j=0 ; j<NUM_CSHIFTS ; j++)
{
r += (cl.cshifts[j].percent*(cl.cshifts[j].destcolor[0]-r))>>8;
g += (cl.cshifts[j].percent*(cl.cshifts[j].destcolor[1]-g))>>8;
b += (cl.cshifts[j].percent*(cl.cshifts[j].destcolor[2]-b))>>8;
}
newpal[0] = gammatable[r];
newpal[1] = gammatable[g];
newpal[2] = gammatable[b];
newpal += 3;
}
VID_ShiftPalette (pal);
}
#endif // !GLQUAKE
/*
==============================================================================
VIEW RENDERING
==============================================================================
*/
float angledelta (float a)
{
a = anglemod(a);
if (a > 180)
a -= 360;
return a;
}
/*
==================
CalcGunAngle
==================
*/
void CalcGunAngle (void)
{
float yaw, pitch, move;
static float oldyaw = 0;
static float oldpitch = 0;
yaw = r_refdef.viewangles[YAW];
pitch = -r_refdef.viewangles[PITCH];
yaw = angledelta(yaw - r_refdef.viewangles[YAW]) * 0.4;
if (yaw > 10)
yaw = 10;
if (yaw < -10)
yaw = -10;
pitch = angledelta(-pitch - r_refdef.viewangles[PITCH]) * 0.4;
if (pitch > 10)
pitch = 10;
if (pitch < -10)
pitch = -10;
move = host_frametime*20;
if (yaw > oldyaw)
{
if (oldyaw + move < yaw)
yaw = oldyaw + move;
}
else
{
if (oldyaw - move > yaw)
yaw = oldyaw - move;
}
if (pitch > oldpitch)
{
if (oldpitch + move < pitch)
pitch = oldpitch + move;
}
else
{
if (oldpitch - move > pitch)
pitch = oldpitch - move;
}
oldyaw = yaw;
oldpitch = pitch;
cl.viewent.angles[YAW] = r_refdef.viewangles[YAW] + yaw;
cl.viewent.angles[PITCH] = - (r_refdef.viewangles[PITCH] + pitch);
cl.viewent.angles[ROLL] -= v_idlescale.value * sinf(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
cl.viewent.angles[PITCH] -= v_idlescale.value * sinf(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
cl.viewent.angles[YAW] -= v_idlescale.value * sinf(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
}
/*
==============
V_BoundOffsets
==============
*/
void V_BoundOffsets (void)
{
entity_t *ent;
ent = &cl_entities[cl.viewentity];
// absolutely bound refresh reletive to entity clipping hull
// so the view can never be inside a solid wall
if (r_refdef.vieworg[0] < ent->origin[0] - 14)
r_refdef.vieworg[0] = ent->origin[0] - 14;
else if (r_refdef.vieworg[0] > ent->origin[0] + 14)
r_refdef.vieworg[0] = ent->origin[0] + 14;
if (r_refdef.vieworg[1] < ent->origin[1] - 14)
r_refdef.vieworg[1] = ent->origin[1] - 14;
else if (r_refdef.vieworg[1] > ent->origin[1] + 14)
r_refdef.vieworg[1] = ent->origin[1] + 14;
if (r_refdef.vieworg[2] < ent->origin[2] - 22)
r_refdef.vieworg[2] = ent->origin[2] - 22;
else if (r_refdef.vieworg[2] > ent->origin[2] + 30)
r_refdef.vieworg[2] = ent->origin[2] + 30;
}
/*
==============
V_AddIdle
Idle swaying
==============
*/
void V_AddIdle (void)
{
r_refdef.viewangles[ROLL] += v_idlescale.value * sinf(cl.time*v_iroll_cycle.value) * v_iroll_level.value;
r_refdef.viewangles[PITCH] += v_idlescale.value * sinf(cl.time*v_ipitch_cycle.value) * v_ipitch_level.value;
r_refdef.viewangles[YAW] += v_idlescale.value * sinf(cl.time*v_iyaw_cycle.value) * v_iyaw_level.value;
}
/*
=============
V_CalcShake
=============
*/
screen_shake_t gameshake;
void V_CalcShake( void )
{
int i;
float fraction, freq;
float localAmp;
if( gameshake.time == 0 )
return;
if(( cl.time > gameshake.time ) || gameshake.amplitude <= 0 || gameshake.frequency <= 0 )
{
Q_memset( &gameshake, 0, sizeof( gameshake ));
return;
}
if( cl.time > gameshake.next_shake )
{
// higher frequency means we recalc the extents more often and perturb the display again
gameshake.next_shake = cl.time + ( 1.0f / gameshake.frequency );
// compute random shake extents (the shake will settle down from this)
for( i = 0; i < 3; i++ )
gameshake.offset[i] = RandomFloat( -gameshake.amplitude, gameshake.amplitude );
gameshake.angle = RandomFloat( -gameshake.amplitude * 0.25, gameshake.amplitude * 0.25 );
}
// ramp down amplitude over duration (fraction goes from 1 to 0 linearly with slope 1/duration)
fraction = ( gameshake.time - cl.time ) / gameshake.duration;
// ramp up frequency over duration
if( fraction )
{
freq = ( gameshake.frequency / fraction );
}
else
{
freq = 0;
}
// square fraction to approach zero more quickly
fraction *= fraction;
// Sine wave that slowly settles to zero
fraction = fraction * sin( cl.time * freq );
// add to view origin
VectorScale( gameshake.offset, fraction, gameshake.applied_offset );
// add to roll
gameshake.applied_angle = gameshake.angle * fraction;
// drop amplitude a bit, less for higher frequency shakes
localAmp = gameshake.amplitude * ( host_frametime / ( gameshake.duration * gameshake.frequency ));
gameshake.amplitude -= localAmp;
}
/*
=============
V_ApplyShake
=============
*/
void V_ApplyShake( float *origin, float *angles, float factor )
{
if( origin ) VectorMA( origin, factor, gameshake.applied_offset, origin );
if( angles ) angles[ROLL] += gameshake.applied_angle * factor;
}
/*
==============
V_CalcViewRoll
Roll is induced by movement and damage
==============
*/
void V_CalcViewRoll (void)
{
float side;
side = V_CalcRoll (cl_entities[cl.viewentity].angles, cl.velocity);
r_refdef.viewangles[ROLL] += side;
if (v_dmg_time > 0)
{
r_refdef.viewangles[ROLL] += v_dmg_time/v_kicktime.value*v_dmg_roll;
r_refdef.viewangles[PITCH] += v_dmg_time/v_kicktime.value*v_dmg_pitch;
v_dmg_time -= host_frametime;
}
if (cl.stats[STAT_HEALTH] <= 0)
{
r_refdef.viewangles[ROLL] = 80; // dead view angle
return;
}
}
/*
==================
V_CalcIntermissionRefdef
==================
*/
void V_CalcIntermissionRefdef (void)
{
entity_t *ent, *view;
float old;
// ent is the player model (visible when out of body)
ent = &cl_entities[cl.viewentity];
// view is the weapon model (only visible from inside body)
view = &cl.viewent;
VectorCopy (ent->origin, r_refdef.vieworg);
VectorCopy (ent->angles, r_refdef.viewangles);
view->model = NULL;
// allways idle in intermission
old = v_idlescale.value;
v_idlescale.value = 1;
V_AddIdle ();
v_idlescale.value = old;
}
/*
==================
V_CalcRefdef
==================
*/
void V_CalcRefdef (void)
{
entity_t *ent, *view;
int i;
vec3_t forward, right, up;
vec3_t angles;
float bob;
static float oldz = 0;
V_DriftPitch ();
// ent is the player model (visible when out of body)
ent = &cl_entities[cl.viewentity];
// view is the weapon model (only visible from inside body)
view = &cl.viewent;
// transform the view offset by the model's matrix to get the offset from
// model origin for the view
ent->angles[YAW] = cl.viewangles[YAW]; // the model should face
// the view dir
ent->angles[PITCH] = -cl.viewangles[PITCH]; // the model should face