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Diffstat (limited to 'src/cgame/cg_view.c')
| -rw-r--r-- | src/cgame/cg_view.c | 1340 |
1 files changed, 1340 insertions, 0 deletions
diff --git a/src/cgame/cg_view.c b/src/cgame/cg_view.c new file mode 100644 index 0000000..477196c --- /dev/null +++ b/src/cgame/cg_view.c @@ -0,0 +1,1340 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. +Copyright (C) 2000-2006 Tim Angus + +This file is part of Tremulous. + +Tremulous 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. + +Tremulous 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 Tremulous; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ + +// cg_view.c -- setup all the parameters (position, angle, etc) +// for a 3D rendering + + +#include "cg_local.h" + + +/* +============================================================================= + + MODEL TESTING + +The viewthing and gun positioning tools from Q2 have been integrated and +enhanced into a single model testing facility. + +Model viewing can begin with either "testmodel <modelname>" or "testgun <modelname>". + +The names must be the full pathname after the basedir, like +"models/weapons/v_launch/tris.md3" or "players/male/tris.md3" + +Testmodel will create a fake entity 100 units in front of the current view +position, directly facing the viewer. It will remain immobile, so you can +move around it to view it from different angles. + +Testgun will cause the model to follow the player around and supress the real +view weapon model. The default frame 0 of most guns is completely off screen, +so you will probably have to cycle a couple frames to see it. + +"nextframe", "prevframe", "nextskin", and "prevskin" commands will change the +frame or skin of the testmodel. These are bound to F5, F6, F7, and F8 in +q3default.cfg. + +If a gun is being tested, the "gun_x", "gun_y", and "gun_z" variables will let +you adjust the positioning. + +Note that none of the model testing features update while the game is paused, so +it may be convenient to test with deathmatch set to 1 so that bringing down the +console doesn't pause the game. + +============================================================================= +*/ + +/* +================= +CG_TestModel_f + +Creates an entity in front of the current position, which +can then be moved around +================= +*/ +void CG_TestModel_f( void ) +{ + vec3_t angles; + + memset( &cg.testModelEntity, 0, sizeof( cg.testModelEntity ) ); + memset( &cg.testModelBarrelEntity, 0, sizeof( cg.testModelBarrelEntity ) ); + + if( trap_Argc( ) < 2 ) + return; + + Q_strncpyz( cg.testModelName, CG_Argv( 1 ), MAX_QPATH ); + cg.testModelEntity.hModel = trap_R_RegisterModel( cg.testModelName ); + + Q_strncpyz( cg.testModelBarrelName, CG_Argv( 1 ), MAX_QPATH ); + cg.testModelBarrelName[ strlen( cg.testModelBarrelName ) - 4 ] = '\0'; + Q_strcat( cg.testModelBarrelName, MAX_QPATH, "_barrel.md3" ); + cg.testModelBarrelEntity.hModel = trap_R_RegisterModel( cg.testModelBarrelName ); + + if( trap_Argc( ) == 3 ) + { + cg.testModelEntity.backlerp = atof( CG_Argv( 2 ) ); + cg.testModelEntity.frame = 1; + cg.testModelEntity.oldframe = 0; + } + + if( !cg.testModelEntity.hModel ) + { + CG_Printf( "Can't register model\n" ); + return; + } + + VectorMA( cg.refdef.vieworg, 100, cg.refdef.viewaxis[ 0 ], cg.testModelEntity.origin ); + + angles[ PITCH ] = 0; + angles[ YAW ] = 180 + cg.refdefViewAngles[ 1 ]; + angles[ ROLL ] = 0; + + AnglesToAxis( angles, cg.testModelEntity.axis ); + cg.testGun = qfalse; + + if( cg.testModelBarrelEntity.hModel ) + { + angles[ YAW ] = 0; + angles[ PITCH ] = 0; + angles[ ROLL ] = 0; + AnglesToAxis( angles, cg.testModelBarrelEntity.axis ); + } +} + +/* +================= +CG_TestGun_f + +Replaces the current view weapon with the given model +================= +*/ +void CG_TestGun_f( void ) +{ + CG_TestModel_f( ); + cg.testGun = qtrue; + cg.testModelEntity.renderfx = RF_MINLIGHT | RF_DEPTHHACK | RF_FIRST_PERSON; +} + + +void CG_TestModelNextFrame_f( void ) +{ + cg.testModelEntity.frame++; + CG_Printf( "frame %i\n", cg.testModelEntity.frame ); +} + +void CG_TestModelPrevFrame_f( void ) +{ + cg.testModelEntity.frame--; + + if( cg.testModelEntity.frame < 0 ) + cg.testModelEntity.frame = 0; + + CG_Printf( "frame %i\n", cg.testModelEntity.frame ); +} + +void CG_TestModelNextSkin_f( void ) +{ + cg.testModelEntity.skinNum++; + CG_Printf( "skin %i\n", cg.testModelEntity.skinNum ); +} + +void CG_TestModelPrevSkin_f( void ) +{ + cg.testModelEntity.skinNum--; + + if( cg.testModelEntity.skinNum < 0 ) + cg.testModelEntity.skinNum = 0; + + CG_Printf( "skin %i\n", cg.testModelEntity.skinNum ); +} + +static void CG_AddTestModel( void ) +{ + int i; + + // re-register the model, because the level may have changed + cg.testModelEntity.hModel = trap_R_RegisterModel( cg.testModelName ); + cg.testModelBarrelEntity.hModel = trap_R_RegisterModel( cg.testModelBarrelName ); + + if( !cg.testModelEntity.hModel ) + { + CG_Printf( "Can't register model\n" ); + return; + } + + // if testing a gun, set the origin reletive to the view origin + if( cg.testGun ) + { + VectorCopy( cg.refdef.vieworg, cg.testModelEntity.origin ); + VectorCopy( cg.refdef.viewaxis[ 0 ], cg.testModelEntity.axis[ 0 ] ); + VectorCopy( cg.refdef.viewaxis[ 1 ], cg.testModelEntity.axis[ 1 ] ); + VectorCopy( cg.refdef.viewaxis[ 2 ], cg.testModelEntity.axis[ 2 ] ); + + // allow the position to be adjusted + for( i = 0; i < 3; i++ ) + { + cg.testModelEntity.origin[ i ] += cg.refdef.viewaxis[ 0 ][ i ] * cg_gun_x.value; + cg.testModelEntity.origin[ i ] += cg.refdef.viewaxis[ 1 ][ i ] * cg_gun_y.value; + cg.testModelEntity.origin[ i ] += cg.refdef.viewaxis[ 2 ][ i ] * cg_gun_z.value; + } + } + + trap_R_AddRefEntityToScene( &cg.testModelEntity ); + + if( cg.testModelBarrelEntity.hModel ) + { + CG_PositionEntityOnTag( &cg.testModelBarrelEntity, &cg.testModelEntity, + cg.testModelEntity.hModel, "tag_barrel" ); + + trap_R_AddRefEntityToScene( &cg.testModelBarrelEntity ); + } +} + + + +//============================================================================ + + +/* +================= +CG_CalcVrect + +Sets the coordinates of the rendered window +================= +*/ +static void CG_CalcVrect( void ) +{ + int size; + + // the intermission should allways be full screen + if( cg.snap->ps.pm_type == PM_INTERMISSION ) + size = 100; + else + { + // bound normal viewsize + if( cg_viewsize.integer < 30 ) + { + trap_Cvar_Set( "cg_viewsize", "30" ); + size = 30; + } + else if( cg_viewsize.integer > 100 ) + { + trap_Cvar_Set( "cg_viewsize","100" ); + size = 100; + } + else + size = cg_viewsize.integer; + } + + cg.refdef.width = cgs.glconfig.vidWidth * size / 100; + cg.refdef.width &= ~1; + + cg.refdef.height = cgs.glconfig.vidHeight * size / 100; + cg.refdef.height &= ~1; + + cg.refdef.x = ( cgs.glconfig.vidWidth - cg.refdef.width ) / 2; + cg.refdef.y = ( cgs.glconfig.vidHeight - cg.refdef.height ) / 2; +} + +//============================================================================== + + +/* +=============== +CG_OffsetThirdPersonView + +=============== +*/ +#define FOCUS_DISTANCE 512 +static void CG_OffsetThirdPersonView( void ) +{ + vec3_t forward, right, up; + vec3_t view; + vec3_t focusAngles; + trace_t trace; + static vec3_t mins = { -8, -8, -8 }; + static vec3_t maxs = { 8, 8, 8 }; + vec3_t focusPoint; + float focusDist; + float forwardScale, sideScale; + vec3_t surfNormal; + + if( cg.predictedPlayerState.stats[ STAT_STATE ] & SS_WALLCLIMBING ) + { + if( cg.predictedPlayerState.stats[ STAT_STATE ] & SS_WALLCLIMBINGCEILING ) + VectorSet( surfNormal, 0.0f, 0.0f, -1.0f ); + else + VectorCopy( cg.predictedPlayerState.grapplePoint, surfNormal ); + } + else + VectorSet( surfNormal, 0.0f, 0.0f, 1.0f ); + + VectorMA( cg.refdef.vieworg, cg.predictedPlayerState.viewheight, surfNormal, cg.refdef.vieworg ); + + VectorCopy( cg.refdefViewAngles, focusAngles ); + + // if dead, look at killer + if( cg.predictedPlayerState.stats[ STAT_HEALTH ] <= 0 ) + { + focusAngles[ YAW ] = cg.predictedPlayerState.stats[ STAT_VIEWLOCK ]; + cg.refdefViewAngles[ YAW ] = cg.predictedPlayerState.stats[ STAT_VIEWLOCK ]; + } + + //if ( focusAngles[PITCH] > 45 ) { + // focusAngles[PITCH] = 45; // don't go too far overhead + //} + AngleVectors( focusAngles, forward, NULL, NULL ); + + VectorMA( cg.refdef.vieworg, FOCUS_DISTANCE, forward, focusPoint ); + + VectorCopy( cg.refdef.vieworg, view ); + + VectorMA( view, 12, surfNormal, view ); + + //cg.refdefViewAngles[PITCH] *= 0.5; + + AngleVectors( cg.refdefViewAngles, forward, right, up ); + + forwardScale = cos( cg_thirdPersonAngle.value / 180 * M_PI ); + sideScale = sin( cg_thirdPersonAngle.value / 180 * M_PI ); + VectorMA( view, -cg_thirdPersonRange.value * forwardScale, forward, view ); + VectorMA( view, -cg_thirdPersonRange.value * sideScale, right, view ); + + // trace a ray from the origin to the viewpoint to make sure the view isn't + // in a solid block. Use an 8 by 8 block to prevent the view from near clipping anything + + if( !cg_cameraMode.integer ) + { + CG_Trace( &trace, cg.refdef.vieworg, mins, maxs, view, cg.predictedPlayerState.clientNum, MASK_SOLID ); + + if( trace.fraction != 1.0 ) + { + VectorCopy( trace.endpos, view ); + view[ 2 ] += ( 1.0 - trace.fraction ) * 32; + // try another trace to this position, because a tunnel may have the ceiling + // close enogh that this is poking out + + CG_Trace( &trace, cg.refdef.vieworg, mins, maxs, view, cg.predictedPlayerState.clientNum, MASK_SOLID ); + VectorCopy( trace.endpos, view ); + } + } + + VectorCopy( view, cg.refdef.vieworg ); + + // select pitch to look at focus point from vieword + VectorSubtract( focusPoint, cg.refdef.vieworg, focusPoint ); + focusDist = sqrt( focusPoint[ 0 ] * focusPoint[ 0 ] + focusPoint[ 1 ] * focusPoint[ 1 ] ); + if ( focusDist < 1 ) { + focusDist = 1; // should never happen + } + cg.refdefViewAngles[ PITCH ] = -180 / M_PI * atan2( focusPoint[ 2 ], focusDist ); + cg.refdefViewAngles[ YAW ] -= cg_thirdPersonAngle.value; +} + + +// this causes a compiler bug on mac MrC compiler +static void CG_StepOffset( void ) +{ + float steptime; + int timeDelta; + vec3_t normal; + playerState_t *ps = &cg.predictedPlayerState; + + if( ps->stats[ STAT_STATE ] & SS_WALLCLIMBING ) + { + if( ps->stats[ STAT_STATE ] & SS_WALLCLIMBINGCEILING ) + VectorSet( normal, 0.0f, 0.0f, -1.0f ); + else + VectorCopy( ps->grapplePoint, normal ); + } + else + VectorSet( normal, 0.0f, 0.0f, 1.0f ); + + steptime = BG_FindSteptimeForClass( ps->stats[ STAT_PCLASS ] ); + + // smooth out stair climbing + timeDelta = cg.time - cg.stepTime; + if( timeDelta < steptime ) + { + float stepChange = cg.stepChange + * (steptime - timeDelta) / steptime; + + if( ps->stats[ STAT_STATE ] & SS_WALLCLIMBING ) + VectorMA( cg.refdef.vieworg, -stepChange, normal, cg.refdef.vieworg ); + else + cg.refdef.vieworg[ 2 ] -= stepChange; + } +} + +#define PCLOUD_ROLL_AMPLITUDE 25.0f +#define PCLOUD_ROLL_FREQUENCY 0.4f +#define PCLOUD_ZOOM_AMPLITUDE 15 +#define PCLOUD_ZOOM_FREQUENCY 0.7f + + +/* +=============== +CG_OffsetFirstPersonView + +=============== +*/ +static void CG_OffsetFirstPersonView( void ) +{ + float *origin; + float *angles; + float bob; + float ratio; + float delta; + float speed; + float f; + vec3_t predictedVelocity; + int timeDelta; + float bob2; + vec3_t normal, baseOrigin; + playerState_t *ps = &cg.predictedPlayerState; + + if( ps->stats[ STAT_STATE ] & SS_WALLCLIMBING ) + { + if( ps->stats[ STAT_STATE ] & SS_WALLCLIMBINGCEILING ) + VectorSet( normal, 0.0f, 0.0f, -1.0f ); + else + VectorCopy( ps->grapplePoint, normal ); + } + else + VectorSet( normal, 0.0f, 0.0f, 1.0f ); + + + if( cg.snap->ps.pm_type == PM_INTERMISSION ) + return; + + origin = cg.refdef.vieworg; + angles = cg.refdefViewAngles; + + VectorCopy( origin, baseOrigin ); + + // if dead, fix the angle and don't add any kick + if( cg.snap->ps.stats[ STAT_HEALTH ] <= 0 ) + { + angles[ ROLL ] = 40; + angles[ PITCH ] = -15; + angles[ YAW ] = cg.snap->ps.stats[ STAT_VIEWLOCK ]; + origin[ 2 ] += cg.predictedPlayerState.viewheight; + return; + } + + // add angles based on weapon kick + VectorAdd( angles, cg.kick_angles, angles ); + + // add angles based on damage kick + if( cg.damageTime ) + { + ratio = cg.time - cg.damageTime; + if( ratio < DAMAGE_DEFLECT_TIME ) + { + ratio /= DAMAGE_DEFLECT_TIME; + angles[ PITCH ] += ratio * cg.v_dmg_pitch; + angles[ ROLL ] += ratio * cg.v_dmg_roll; + } + else + { + ratio = 1.0 - ( ratio - DAMAGE_DEFLECT_TIME ) / DAMAGE_RETURN_TIME; + if( ratio > 0 ) + { + angles[ PITCH ] += ratio * cg.v_dmg_pitch; + angles[ ROLL ] += ratio * cg.v_dmg_roll; + } + } + } + + // add pitch based on fall kick +#if 0 + ratio = ( cg.time - cg.landTime) / FALL_TIME; + if (ratio < 0) + ratio = 0; + angles[PITCH] += ratio * cg.fall_value; +#endif + + // add angles based on velocity + VectorCopy( cg.predictedPlayerState.velocity, predictedVelocity ); + + delta = DotProduct( predictedVelocity, cg.refdef.viewaxis[ 0 ] ); + angles[ PITCH ] += delta * cg_runpitch.value; + + delta = DotProduct( predictedVelocity, cg.refdef.viewaxis[ 1 ] ); + angles[ ROLL ] -= delta * cg_runroll.value; + + // add angles based on bob + // bob amount is class dependant + + if( cg.snap->ps.persistant[ PERS_TEAM ] == TEAM_SPECTATOR ) + bob2 = 0.0f; + else + bob2 = BG_FindBobForClass( cg.predictedPlayerState.stats[ STAT_PCLASS ] ); + + +#define LEVEL4_FEEDBACK 10.0f + + //give a charging player some feedback + if( ps->weapon == WP_ALEVEL4 ) + { + if( ps->stats[ STAT_MISC ] > 0 ) + { + float fraction = (float)ps->stats[ STAT_MISC ] / (float)LEVEL4_CHARGE_TIME; + + if( fraction > 1.0f ) + fraction = 1.0f; + + bob2 *= ( 1.0f + fraction * LEVEL4_FEEDBACK ); + } + } + + if( bob2 != 0.0f ) + { + // make sure the bob is visible even at low speeds + speed = cg.xyspeed > 200 ? cg.xyspeed : 200; + + delta = cg.bobfracsin * ( bob2 ) * speed; + if( cg.predictedPlayerState.pm_flags & PMF_DUCKED ) + delta *= 3; // crouching + + angles[ PITCH ] += delta; + delta = cg.bobfracsin * ( bob2 ) * speed; + if( cg.predictedPlayerState.pm_flags & PMF_DUCKED ) + delta *= 3; // crouching accentuates roll + + if( cg.bobcycle & 1 ) + delta = -delta; + + angles[ ROLL ] += delta; + } + +#define LEVEL3_FEEDBACK 20.0f + + //provide some feedback for pouncing + if( cg.predictedPlayerState.weapon == WP_ALEVEL3 || + cg.predictedPlayerState.weapon == WP_ALEVEL3_UPG ) + { + if( cg.predictedPlayerState.stats[ STAT_MISC ] > 0 ) + { + float fraction1, fraction2; + vec3_t forward; + + AngleVectors( angles, forward, NULL, NULL ); + VectorNormalize( forward ); + + fraction1 = (float)( cg.time - cg.weapon2Time ) / (float)LEVEL3_POUNCE_CHARGE_TIME; + + if( fraction1 > 1.0f ) + fraction1 = 1.0f; + + fraction2 = -sin( fraction1 * M_PI / 2 ); + + VectorMA( origin, LEVEL3_FEEDBACK * fraction2, forward, origin ); + } + } + +#define STRUGGLE_DIST 5.0f +#define STRUGGLE_TIME 250 + + //allow the player to struggle a little whilst grabbed + if( cg.predictedPlayerState.pm_type == PM_GRABBED ) + { + vec3_t forward, right, up; + usercmd_t cmd; + int cmdNum; + float fFraction, rFraction, uFraction; + float fFraction2, rFraction2, uFraction2; + + cmdNum = trap_GetCurrentCmdNumber(); + trap_GetUserCmd( cmdNum, &cmd ); + + AngleVectors( angles, forward, right, up ); + + fFraction = (float)( cg.time - cg.forwardMoveTime ) / STRUGGLE_TIME; + rFraction = (float)( cg.time - cg.rightMoveTime ) / STRUGGLE_TIME; + uFraction = (float)( cg.time - cg.upMoveTime ) / STRUGGLE_TIME; + + if( fFraction > 1.0f ) + fFraction = 1.0f; + if( rFraction > 1.0f ) + rFraction = 1.0f; + if( uFraction > 1.0f ) + uFraction = 1.0f; + + fFraction2 = -sin( fFraction * M_PI / 2 ); + rFraction2 = -sin( rFraction * M_PI / 2 ); + uFraction2 = -sin( uFraction * M_PI / 2 ); + + if( cmd.forwardmove > 0 ) + VectorMA( origin, STRUGGLE_DIST * fFraction, forward, origin ); + else if( cmd.forwardmove < 0 ) + VectorMA( origin, -STRUGGLE_DIST * fFraction, forward, origin ); + else + cg.forwardMoveTime = cg.time; + + if( cmd.rightmove > 0 ) + VectorMA( origin, STRUGGLE_DIST * rFraction, right, origin ); + else if( cmd.rightmove < 0 ) + VectorMA( origin, -STRUGGLE_DIST * rFraction, right, origin ); + else + cg.rightMoveTime = cg.time; + + if( cmd.upmove > 0 ) + VectorMA( origin, STRUGGLE_DIST * uFraction, up, origin ); + else if( cmd.upmove < 0 ) + VectorMA( origin, -STRUGGLE_DIST * uFraction, up, origin ); + else + cg.upMoveTime = cg.time; + } + + if( cg.predictedPlayerState.stats[ STAT_STATE ] & SS_POISONCLOUDED && + !( cg.snap->ps.pm_flags & PMF_FOLLOW ) ) + { + float fraction = sin( ( (float)cg.time / 1000.0f ) * M_PI * 2 * PCLOUD_ROLL_FREQUENCY ); + float pitchFraction = sin( ( (float)cg.time / 1000.0f ) * M_PI * 5 * PCLOUD_ROLL_FREQUENCY ); + + fraction *= 1.0f - ( ( cg.time - cg.poisonedTime ) / (float)LEVEL1_PCLOUD_TIME ); + pitchFraction *= 1.0f - ( ( cg.time - cg.poisonedTime ) / (float)LEVEL1_PCLOUD_TIME ); + + angles[ ROLL ] += fraction * PCLOUD_ROLL_AMPLITUDE; + angles[ YAW ] += fraction * PCLOUD_ROLL_AMPLITUDE; + angles[ PITCH ] += pitchFraction * PCLOUD_ROLL_AMPLITUDE / 2.0f; + } + + // this *feels* more realisitic for humans + if( cg.predictedPlayerState.stats[ STAT_PTEAM ] == PTE_HUMANS ) + { + angles[PITCH] += cg.bobfracsin * bob2 * 0.5; + + // heavy breathing effects //FIXME: sound + if( cg.predictedPlayerState.stats[ STAT_STAMINA ] < 0 ) + { + float deltaBreath = (float)( + cg.predictedPlayerState.stats[ STAT_STAMINA ] < 0 ? + -cg.predictedPlayerState.stats[ STAT_STAMINA ] : + cg.predictedPlayerState.stats[ STAT_STAMINA ] ) / 200.0; + float deltaAngle = cos( (float)cg.time/150.0 ) * deltaBreath; + + deltaAngle += ( deltaAngle < 0 ? -deltaAngle : deltaAngle ) * 0.5; + + angles[ PITCH ] -= deltaAngle; + } + } + +//=================================== + + // add view height + // when wall climbing the viewheight is not straight up + if( cg.predictedPlayerState.stats[ STAT_STATE ] & SS_WALLCLIMBING ) + VectorMA( origin, ps->viewheight, normal, origin ); + else + origin[ 2 ] += cg.predictedPlayerState.viewheight; + + // smooth out duck height changes + timeDelta = cg.time - cg.duckTime; + if( timeDelta < DUCK_TIME) + { + cg.refdef.vieworg[ 2 ] -= cg.duckChange + * ( DUCK_TIME - timeDelta ) / DUCK_TIME; + } + + // add bob height + bob = cg.bobfracsin * cg.xyspeed * bob2; + + if( bob > 6 ) + bob = 6; + + // likewise for bob + if( cg.predictedPlayerState.stats[ STAT_STATE ] & SS_WALLCLIMBING ) + VectorMA( origin, bob, normal, origin ); + else + origin[ 2 ] += bob; + + + // add fall height + delta = cg.time - cg.landTime; + + if( delta < LAND_DEFLECT_TIME ) + { + f = delta / LAND_DEFLECT_TIME; + cg.refdef.vieworg[ 2 ] += cg.landChange * f; + } + else if( delta < LAND_DEFLECT_TIME + LAND_RETURN_TIME ) + { + delta -= LAND_DEFLECT_TIME; + f = 1.0 - ( delta / LAND_RETURN_TIME ); + cg.refdef.vieworg[ 2 ] += cg.landChange * f; + } + + // add step offset + CG_StepOffset( ); + + // add kick offset + + VectorAdd (origin, cg.kick_origin, origin); +} + +//====================================================================== + +/* +==================== +CG_CalcFov + +Fixed fov at intermissions, otherwise account for fov variable and zooms. +==================== +*/ +#define WAVE_AMPLITUDE 1 +#define WAVE_FREQUENCY 0.4 + +#define FOVWARPTIME 400.0 + +static int CG_CalcFov( void ) +{ + float x; + float phase; + float v; + int contents; + float fov_x, fov_y; + float zoomFov; + float f; + int inwater; + int attribFov; + usercmd_t cmd; + int cmdNum; + + cmdNum = trap_GetCurrentCmdNumber( ); + trap_GetUserCmd( cmdNum, &cmd ); + + if( cg.predictedPlayerState.pm_type == PM_INTERMISSION || + ( cg.snap->ps.persistant[ PERS_TEAM ] == TEAM_SPECTATOR ) ) + { + // if in intermission, use a fixed value + fov_x = 90; + } + else + { + // don't lock the fov globally - we need to be able to change it + attribFov = BG_FindFovForClass( cg.predictedPlayerState.stats[ STAT_PCLASS ] ); + fov_x = attribFov; + + if ( fov_x < 1 ) + fov_x = 1; + else if ( fov_x > 160 ) + fov_x = 160; + + if( cg.spawnTime > ( cg.time - FOVWARPTIME ) && + BG_ClassHasAbility( cg.predictedPlayerState.stats[ STAT_PCLASS ], SCA_FOVWARPS ) ) + { + float temp, temp2; + + temp = (float)( cg.time - cg.spawnTime ) / FOVWARPTIME; + temp2 = ( 170 - fov_x ) * temp; + + //Com_Printf( "%f %f\n", temp*100, temp2*100 ); + + fov_x = 170 - temp2; + } + + // account for zooms + zoomFov = BG_FindZoomFovForWeapon( cg.predictedPlayerState.weapon ); + if ( zoomFov < 1 ) + zoomFov = 1; + else if ( zoomFov > attribFov ) + zoomFov = attribFov; + + // only do all the zoom stuff if the client CAN zoom + // FIXME: zoom control is currently hard coded to BUTTON_ATTACK2 + if( BG_WeaponCanZoom( cg.predictedPlayerState.weapon ) ) + { + if ( cg.zoomed ) + { + f = ( cg.time - cg.zoomTime ) / (float)ZOOM_TIME; + + if ( f > 1.0 ) + fov_x = zoomFov; + else + fov_x = fov_x + f * ( zoomFov - fov_x ); + + // BUTTON_ATTACK2 isn't held so unzoom next time + if( !( cmd.buttons & BUTTON_ATTACK2 ) ) + { + cg.zoomed = qfalse; + cg.zoomTime = cg.time; + } + } + else + { + f = ( cg.time - cg.zoomTime ) / (float)ZOOM_TIME; + + if ( f > 1.0 ) + fov_x = fov_x; + else + fov_x = zoomFov + f * ( fov_x - zoomFov ); + + // BUTTON_ATTACK2 is held so zoom next time + if( cmd.buttons & BUTTON_ATTACK2 ) + { + cg.zoomed = qtrue; + cg.zoomTime = cg.time; + } + } + } + } + + x = cg.refdef.width / tan( fov_x / 360 * M_PI ); + fov_y = atan2( cg.refdef.height, x ); + fov_y = fov_y * 360 / M_PI; + + // warp if underwater + contents = CG_PointContents( cg.refdef.vieworg, -1 ); + + if( contents & ( CONTENTS_WATER | CONTENTS_SLIME | CONTENTS_LAVA ) ) + { + phase = cg.time / 1000.0 * WAVE_FREQUENCY * M_PI * 2; + v = WAVE_AMPLITUDE * sin( phase ); + fov_x += v; + fov_y -= v; + inwater = qtrue; + } + else + inwater = qfalse; + + if( cg.predictedPlayerState.stats[ STAT_STATE ] & SS_POISONCLOUDED && + cg.predictedPlayerState.stats[ STAT_HEALTH ] > 0 && + !( cg.snap->ps.pm_flags & PMF_FOLLOW ) ) + { + phase = cg.time / 1000.0 * PCLOUD_ZOOM_FREQUENCY * M_PI * 2; + v = PCLOUD_ZOOM_AMPLITUDE * sin( phase ); + v *= 1.0f - ( ( cg.time - cg.poisonedTime ) / (float)LEVEL1_PCLOUD_TIME ); + fov_x += v; + fov_y += v; + } + + + // set it + cg.refdef.fov_x = fov_x; + cg.refdef.fov_y = fov_y; + + if( !cg.zoomed ) + cg.zoomSensitivity = 1; + else + cg.zoomSensitivity = cg.refdef.fov_y / 75.0; + + return inwater; +} + + + +#define NORMAL_HEIGHT 64.0f +#define NORMAL_WIDTH 6.0f + +/* +=============== +CG_DrawSurfNormal + +Draws a vector against +the surface player is looking at +=============== +*/ +static void CG_DrawSurfNormal( void ) +{ + trace_t tr; + vec3_t end, temp; + polyVert_t normal[ 4 ]; + vec4_t color = { 0.0f, 255.0f, 0.0f, 128.0f }; + + VectorMA( cg.refdef.vieworg, 8192, cg.refdef.viewaxis[ 0 ], end ); + + CG_Trace( &tr, cg.refdef.vieworg, NULL, NULL, end, cg.predictedPlayerState.clientNum, MASK_SOLID ); + + VectorCopy( tr.endpos, normal[ 0 ].xyz ); + normal[ 0 ].st[ 0 ] = 0; + normal[ 0 ].st[ 1 ] = 0; + Vector4Copy( color, normal[ 0 ].modulate ); + + VectorMA( tr.endpos, NORMAL_WIDTH, cg.refdef.viewaxis[ 1 ], temp ); + VectorCopy( temp, normal[ 1 ].xyz); + normal[ 1 ].st[ 0 ] = 0; + normal[ 1 ].st[ 1 ] = 1; + Vector4Copy( color, normal[ 1 ].modulate ); + + VectorMA( tr.endpos, NORMAL_HEIGHT, tr.plane.normal, temp ); + VectorMA( temp, NORMAL_WIDTH, cg.refdef.viewaxis[ 1 ], temp ); + VectorCopy( temp, normal[ 2 ].xyz ); + normal[ 2 ].st[ 0 ] = 1; + normal[ 2 ].st[ 1 ] = 1; + Vector4Copy( color, normal[ 2 ].modulate ); + + VectorMA( tr.endpos, NORMAL_HEIGHT, tr.plane.normal, temp ); + VectorCopy( temp, normal[ 3 ].xyz ); + normal[ 3 ].st[ 0 ] = 1; + normal[ 3 ].st[ 1 ] = 0; + Vector4Copy( color, normal[ 3 ].modulate ); + + trap_R_AddPolyToScene( cgs.media.outlineShader, 4, normal ); +} + +/* +=============== +CG_addSmoothOp +=============== +*/ +void CG_addSmoothOp( vec3_t rotAxis, float rotAngle, float timeMod ) +{ + int i; + + //iterate through smooth array + for( i = 0; i < MAXSMOOTHS; i++ ) + { + //found an unused index in the smooth array + if( cg.sList[ i ].time + cg_wwSmoothTime.integer < cg.time ) + { + //copy to array and stop + VectorCopy( rotAxis, cg.sList[ i ].rotAxis ); + cg.sList[ i ].rotAngle = rotAngle; + cg.sList[ i ].time = cg.time; + cg.sList[ i ].timeMod = timeMod; + return; + } + } + + //no free indices in the smooth array +} + +/* +=============== +CG_smoothWWTransitions +=============== +*/ +static void CG_smoothWWTransitions( playerState_t *ps, const vec3_t in, vec3_t out ) +{ + vec3_t surfNormal, rotAxis, temp; + vec3_t refNormal = { 0.0f, 0.0f, 1.0f }; + vec3_t ceilingNormal = { 0.0f, 0.0f, -1.0f }; + int i; + float stLocal, sFraction, rotAngle; + float smoothTime, timeMod; + qboolean performed = qfalse; + vec3_t inAxis[ 3 ], lastAxis[ 3 ], outAxis[ 3 ]; + + if( cg.snap->ps.pm_flags & PMF_FOLLOW ) + { + VectorCopy( in, out ); + return; + } + + //set surfNormal + if( !( ps->stats[ STAT_STATE ] & SS_WALLCLIMBINGCEILING ) ) + VectorCopy( ps->grapplePoint, surfNormal ); + else + VectorCopy( ceilingNormal, surfNormal ); + + AnglesToAxis( in, inAxis ); + + //if we are moving from one surface to another smooth the transition + if( !VectorCompare( surfNormal, cg.lastNormal ) ) + { + //if we moving from the ceiling to the floor special case + //( x product of colinear vectors is undefined) + if( VectorCompare( ceilingNormal, cg.lastNormal ) && + VectorCompare( refNormal, surfNormal ) ) + { + AngleVectors( in, temp, NULL, NULL ); + ProjectPointOnPlane( rotAxis, temp, refNormal ); + VectorNormalize( rotAxis ); + rotAngle = 180.0f; + timeMod = 1.5f; + } + else + { + AnglesToAxis( cg.lastVangles, lastAxis ); + rotAngle = DotProduct( inAxis[ 0 ], lastAxis[ 0 ] ) + + DotProduct( inAxis[ 1 ], lastAxis[ 1 ] ) + + DotProduct( inAxis[ 2 ], lastAxis[ 2 ] ); + + rotAngle = RAD2DEG( acos( ( rotAngle - 1.0f ) / 2.0f ) ); + + CrossProduct( lastAxis[ 0 ], inAxis[ 0 ], temp ); + VectorCopy( temp, rotAxis ); + CrossProduct( lastAxis[ 1 ], inAxis[ 1 ], temp ); + VectorAdd( rotAxis, temp, rotAxis ); + CrossProduct( lastAxis[ 2 ], inAxis[ 2 ], temp ); + VectorAdd( rotAxis, temp, rotAxis ); + + VectorNormalize( rotAxis ); + + timeMod = 1.0f; + } + + //add the op + CG_addSmoothOp( rotAxis, rotAngle, timeMod ); + } + + //iterate through ops + for( i = MAXSMOOTHS - 1; i >= 0; i-- ) + { + smoothTime = (int)( cg_wwSmoothTime.integer * cg.sList[ i ].timeMod ); + + //if this op has time remaining, perform it + if( cg.time < cg.sList[ i ].time + smoothTime ) + { + stLocal = 1.0f - ( ( ( cg.sList[ i ].time + smoothTime ) - cg.time ) / smoothTime ); + sFraction = -( cos( stLocal * M_PI ) + 1.0f ) / 2.0f; + + RotatePointAroundVector( outAxis[ 0 ], cg.sList[ i ].rotAxis, + inAxis[ 0 ], sFraction * cg.sList[ i ].rotAngle ); + RotatePointAroundVector( outAxis[ 1 ], cg.sList[ i ].rotAxis, + inAxis[ 1 ], sFraction * cg.sList[ i ].rotAngle ); + RotatePointAroundVector( outAxis[ 2 ], cg.sList[ i ].rotAxis, + inAxis[ 2 ], sFraction * cg.sList[ i ].rotAngle ); + + AxisCopy( outAxis, inAxis ); + performed = qtrue; + } + } + + //if we performed any ops then return the smoothed angles + //otherwise simply return the in angles + if( performed ) + AxisToAngles( outAxis, out ); + else + VectorCopy( in, out ); + + //copy the current normal to the lastNormal + VectorCopy( in, cg.lastVangles ); + VectorCopy( surfNormal, cg.lastNormal ); +} + +/* +=============== +CG_smoothWJTransitions +=============== +*/ +static void CG_smoothWJTransitions( playerState_t *ps, const vec3_t in, vec3_t out ) +{ + int i; + float stLocal, sFraction; + qboolean performed = qfalse; + vec3_t inAxis[ 3 ], outAxis[ 3 ]; + + if( cg.snap->ps.pm_flags & PMF_FOLLOW ) + { + VectorCopy( in, out ); + return; + } + + AnglesToAxis( in, inAxis ); + + //iterate through ops + for( i = MAXSMOOTHS - 1; i >= 0; i-- ) + { + //if this op has time remaining, perform it + if( cg.time < cg.sList[ i ].time + cg_wwSmoothTime.integer ) + { + stLocal = ( ( cg.sList[ i ].time + cg_wwSmoothTime.integer ) - cg.time ) / cg_wwSmoothTime.integer; + sFraction = 1.0f - ( ( cos( stLocal * M_PI * 2.0f ) + 1.0f ) / 2.0f ); + + RotatePointAroundVector( outAxis[ 0 ], cg.sList[ i ].rotAxis, + inAxis[ 0 ], sFraction * cg.sList[ i ].rotAngle ); + RotatePointAroundVector( outAxis[ 1 ], cg.sList[ i ].rotAxis, + inAxis[ 1 ], sFraction * cg.sList[ i ].rotAngle ); + RotatePointAroundVector( outAxis[ 2 ], cg.sList[ i ].rotAxis, + inAxis[ 2 ], sFraction * cg.sList[ i ].rotAngle ); + + AxisCopy( outAxis, inAxis ); + performed = qtrue; + } + } + + //if we performed any ops then return the smoothed angles + //otherwise simply return the in angles + if( performed ) + AxisToAngles( outAxis, out ); + else + VectorCopy( in, out ); +} + + +/* +=============== +CG_CalcViewValues + +Sets cg.refdef view values +=============== +*/ +static int CG_CalcViewValues( void ) +{ + playerState_t *ps; + + memset( &cg.refdef, 0, sizeof( cg.refdef ) ); + + // calculate size of 3D view + CG_CalcVrect( ); + + ps = &cg.predictedPlayerState; + + // intermission view + if( ps->pm_type == PM_INTERMISSION ) + { + VectorCopy( ps->origin, cg.refdef.vieworg ); + VectorCopy( ps->viewangles, cg.refdefViewAngles ); + AnglesToAxis( cg.refdefViewAngles, cg.refdef.viewaxis ); + + return CG_CalcFov( ); + } + + cg.bobcycle = ( ps->bobCycle & 128 ) >> 7; + cg.bobfracsin = fabs( sin( ( ps->bobCycle & 127 ) / 127.0 * M_PI ) ); + cg.xyspeed = sqrt( ps->velocity[ 0 ] * ps->velocity[ 0 ] + + ps->velocity[ 1 ] * ps->velocity[ 1 ] ); + + VectorCopy( ps->origin, cg.refdef.vieworg ); + + if( BG_ClassHasAbility( ps->stats[ STAT_PCLASS ], SCA_WALLCLIMBER ) ) + CG_smoothWWTransitions( ps, ps->viewangles, cg.refdefViewAngles ); + else if( BG_ClassHasAbility( ps->stats[ STAT_PCLASS ], SCA_WALLJUMPER ) ) + CG_smoothWJTransitions( ps, ps->viewangles, cg.refdefViewAngles ); + else + VectorCopy( ps->viewangles, cg.refdefViewAngles ); + + //clumsy logic, but it needs to be this way round because the CS propogation + //delay screws things up otherwise + if( !BG_ClassHasAbility( ps->stats[ STAT_PCLASS ], SCA_WALLJUMPER ) ) + { + if( !( ps->stats[ STAT_STATE ] & SS_WALLCLIMBING ) ) + VectorSet( cg.lastNormal, 0.0f, 0.0f, 1.0f ); + } + + // add error decay + if( cg_errorDecay.value > 0 ) + { + int t; + float f; + + t = cg.time - cg.predictedErrorTime; + f = ( cg_errorDecay.value - t ) / cg_errorDecay.value; + + if( f > 0 && f < 1 ) + VectorMA( cg.refdef.vieworg, f, cg.predictedError, cg.refdef.vieworg ); + else + cg.predictedErrorTime = 0; + } + + //shut off the poison cloud effect if it's still on the go + if( cg.snap->ps.stats[ STAT_HEALTH ] <= 0 ) + { + if( CG_IsParticleSystemValid( &cg.poisonCloudPS ) ) + CG_DestroyParticleSystem( &cg.poisonCloudPS ); + } + + if( cg.renderingThirdPerson ) + { + // back away from character + CG_OffsetThirdPersonView( ); + } + else + { + // offset for local bobbing and kicks + CG_OffsetFirstPersonView( ); + } + + // position eye reletive to origin + AnglesToAxis( cg.refdefViewAngles, cg.refdef.viewaxis ); + + if( cg.hyperspace ) + cg.refdef.rdflags |= RDF_NOWORLDMODEL | RDF_HYPERSPACE; + + //draw the surface normal looking at + if( cg_drawSurfNormal.integer ) + CG_DrawSurfNormal( ); + + // field of view + return CG_CalcFov( ); +} + +/* +===================== +CG_AddBufferedSound +===================== +*/ +void CG_AddBufferedSound( sfxHandle_t sfx ) +{ + if( !sfx ) + return; + + cg.soundBuffer[ cg.soundBufferIn ] = sfx; + cg.soundBufferIn = ( cg.soundBufferIn + 1 ) % MAX_SOUNDBUFFER; + + if( cg.soundBufferIn == cg.soundBufferOut ) + cg.soundBufferOut++; +} + +/* +===================== +CG_PlayBufferedSounds +===================== +*/ +static void CG_PlayBufferedSounds( void ) +{ + if( cg.soundTime < cg.time ) + { + if( cg.soundBufferOut != cg.soundBufferIn && cg.soundBuffer[ cg.soundBufferOut ] ) + { + trap_S_StartLocalSound( cg.soundBuffer[ cg.soundBufferOut ], CHAN_ANNOUNCER ); + cg.soundBuffer[ cg.soundBufferOut ] = 0; + cg.soundBufferOut = ( cg.soundBufferOut + 1 ) % MAX_SOUNDBUFFER; + cg.soundTime = cg.time + 750; + } + } +} + +//========================================================================= + +/* +================= +CG_DrawActiveFrame + +Generates and draws a game scene and status information at the given time. +================= +*/ +void CG_DrawActiveFrame( int serverTime, stereoFrame_t stereoView, qboolean demoPlayback ) +{ + int inwater; + + cg.time = serverTime; + cg.demoPlayback = demoPlayback; + + // update cvars + CG_UpdateCvars( ); + + // if we are only updating the screen as a loading + // pacifier, don't even try to read snapshots + if( cg.infoScreenText[ 0 ] != 0 ) + { + CG_DrawLoadingScreen( ); + return; + } + + // any looped sounds will be respecified as entities + // are added to the render list + trap_S_ClearLoopingSounds( qfalse ); + + // clear all the render lists + trap_R_ClearScene( ); + + // set up cg.snap and possibly cg.nextSnap + CG_ProcessSnapshots( ); + + // if we haven't received any snapshots yet, all + // we can draw is the information screen + if( !cg.snap || ( cg.snap->snapFlags & SNAPFLAG_NOT_ACTIVE ) ) + { + CG_DrawLoadingScreen( ); + return; + } + + // let the client system know what our weapon and zoom settings are + trap_SetUserCmdValue( cg.weaponSelect, cg.zoomSensitivity ); + + // this counter will be bumped for every valid scene we generate + cg.clientFrame++; + + // update cg.predictedPlayerState + CG_PredictPlayerState( ); + + // decide on third person view + cg.renderingThirdPerson = cg_thirdPerson.integer || ( cg.snap->ps.stats[ STAT_HEALTH ] <= 0 ); + + // build cg.refdef + inwater = CG_CalcViewValues( ); + + // build the render lists + if( !cg.hyperspace ) + { + CG_AddPacketEntities( ); // after calcViewValues, so predicted player state is correct + CG_AddMarks( ); + } + + CG_AddViewWeapon( &cg.predictedPlayerState ); + + //after CG_AddViewWeapon + if( !cg.hyperspace ) + { + CG_AddParticles( ); + CG_AddTrails( ); + } + + // add buffered sounds + CG_PlayBufferedSounds( ); + + // finish up the rest of the refdef + if( cg.testModelEntity.hModel ) + CG_AddTestModel( ); + + cg.refdef.time = cg.time; + memcpy( cg.refdef.areamask, cg.snap->areamask, sizeof( cg.refdef.areamask ) ); + + //remove expired console lines + if( cg.consoleLines[ 0 ].time + cg_consoleLatency.integer < cg.time && cg_consoleLatency.integer > 0 ) + CG_RemoveNotifyLine( ); + + // update audio positions + trap_S_Respatialize( cg.snap->ps.clientNum, cg.refdef.vieworg, cg.refdef.viewaxis, inwater ); + + // make sure the lagometerSample and frame timing isn't done twice when in stereo + if( stereoView != STEREO_RIGHT ) + { + cg.frametime = cg.time - cg.oldTime; + + if( cg.frametime < 0 ) + cg.frametime = 0; + + cg.oldTime = cg.time; + CG_AddLagometerFrameInfo( ); + } + + if( cg_timescale.value != cg_timescaleFadeEnd.value ) + { + if( cg_timescale.value < cg_timescaleFadeEnd.value ) + { + cg_timescale.value += cg_timescaleFadeSpeed.value * ( (float)cg.frametime ) / 1000; + if( cg_timescale.value > cg_timescaleFadeEnd.value ) + cg_timescale.value = cg_timescaleFadeEnd.value; + } + else + { + cg_timescale.value -= cg_timescaleFadeSpeed.value * ( (float)cg.frametime ) / 1000; + if( cg_timescale.value < cg_timescaleFadeEnd.value ) + cg_timescale.value = cg_timescaleFadeEnd.value; + } + + if( cg_timescaleFadeSpeed.value ) + trap_Cvar_Set( "timescale", va( "%f", cg_timescale.value ) ); + } + + // actually issue the rendering calls + CG_DrawActive( stereoView ); + + if( cg_stats.integer ) + CG_Printf( "cg.clientFrame:%i\n", cg.clientFrame ); +} + |