q3rally/engine/code/cgame/cg_view.c

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2002-2009 Q3Rally Team (Per Thormann - perle@q3rally.com)

This file is part of q3rally source code.

q3rally source code 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.

q3rally source code 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 q3rally; 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 suppress 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;

	cg.testGun = qfalse;
	memset( &cg.testModelEntity, 0, sizeof(cg.testModelEntity) );
	if ( trap_Argc() < 2 ) {
		return;
	}

	Q_strncpyz (cg.testModelName, CG_Argv( 1 ), MAX_QPATH );
	cg.testModelEntity.hModel = trap_R_RegisterModel( cg.testModelName );

	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_f

Replaces the current view weapon with the given model
=================
*/
void CG_TestGun_f (void) {
	CG_TestModel_f();

	if ( !cg.testModelEntity.hModel ) {
		return;
	}

	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 );
	if (! cg.testModelEntity.hModel ) {
		CG_Printf ("Can't register model\n");
		return;
	}

	// if testing a gun, set the origin relative 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 );
}



//============================================================================


/*
=================
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 = { -4, -4, -4 };
	static vec3_t	maxs = { 4, 4, 4 };
	vec3_t		focusPoint;
	float		focusDist;
	float		forwardScale, sideScale;

// STONELANCE dont need this
//	cg.refdef.vieworg[2] += cg.predictedPlayerState.viewheight;
// END

	VectorCopy( cg.refdefViewAngles, focusAngles );

	// if dead, look at killer
// STONELANCE - free look after dead, remove stat_dead_yaw or use it for observer cam?
/*
	if ( cg.predictedPlayerState.stats[STAT_HEALTH] <= 0 ) {
		focusAngles[YAW] = cg.predictedPlayerState.stats[STAT_DEAD_YAW];
		cg.refdefViewAngles[YAW] = cg.predictedPlayerState.stats[STAT_DEAD_YAW];
	}
*/
// END

	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 );

// Q3Rally Code Start
//	view[2] += 8;
// END

	cg.refdefViewAngles[PITCH] *= 0.5;

	AngleVectors( cg.refdefViewAngles, forward, right, up );

// Q3Rally Code Start
//	forwardScale = cos( cg_thirdPersonAngle.value / 180 * M_PI );
//	sideScale = sin( cg_thirdPersonAngle.value / 180 * M_PI );
	forwardScale = cos( cg_thirdPersonAngle.value * M_PI_180 );
	sideScale = sin( cg_thirdPersonAngle.value * M_PI_180 );
// END
	VectorMA( view, -cg_thirdPersonRange.value * forwardScale, forward, view );
	VectorMA( view, -cg_thirdPersonRange.value * sideScale, right, view );
// Q3Rally Code Start
	VectorMA( view, cg_thirdPersonHeight.value, up, view );
// END

	// 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 enough 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
	}
// Q3Rally Code Start
//	cg.refdefViewAngles[PITCH] = -180 / M_PI * atan2( focusPoint[2], focusDist );
	cg.refdefViewAngles[PITCH] = -M_180_PI * atan2( focusPoint[2], focusDist );
// END
	cg.refdefViewAngles[YAW] -= cg_thirdPersonAngle.value;
}


// this causes a compiler bug on mac MrC compiler
static void CG_StepOffset( void ) {
	int		timeDelta;
	
	// smooth out stair climbing
	timeDelta = cg.time - cg.stepTime;
	if ( timeDelta < STEP_TIME ) {
		cg.refdef.vieworg[2] -= cg.stepChange 
			* (STEP_TIME - timeDelta) / STEP_TIME;
	}
}

/*
===============
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;
	
	if ( cg.snap->ps.pm_type == PM_INTERMISSION ) {
		return;
	}

	origin = cg.refdef.vieworg;
	angles = cg.refdefViewAngles;

	// 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_DEAD_YAW];
		origin[2] += cg.predictedPlayerState.viewheight;
		return;
	}

	// 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

	// make sure the bob is visible even at low speeds
	speed = cg.xyspeed > 200 ? cg.xyspeed : 200;

	delta = cg.bobfracsin * cg_bobpitch.value * speed;
	if (cg.predictedPlayerState.pm_flags & PMF_DUCKED)
		delta *= 3;		// crouching
	angles[PITCH] += delta;
	delta = cg.bobfracsin * cg_bobroll.value * speed;
	if (cg.predictedPlayerState.pm_flags & PMF_DUCKED)
		delta *= 3;		// crouching accentuates roll
// Q3Rally Code Start
//	if (cg.bobcycle & 1)
//		delta = -delta;
// END
	angles[ROLL] += delta;

//===================================

	// add view height
	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 * cg_bobup.value;
	if (bob > 6) {
		bob = 6;
	}

	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();

	// pivot the eye based on a neck length
#if 0
	{
#define	NECK_LENGTH		8
	vec3_t			forward, up;
 
	cg.refdef.vieworg[2] -= NECK_LENGTH;
	AngleVectors( cg.refdefViewAngles, forward, NULL, up );
	VectorMA( cg.refdef.vieworg, 3, forward, cg.refdef.vieworg );
	VectorMA( cg.refdef.vieworg, NECK_LENGTH, up, cg.refdef.vieworg );
	}
#endif
}

//======================================================================

void CG_ZoomDown_f( void ) { 
	if ( cg.zoomed ) {
		return;
	}
	cg.zoomed = qtrue;
	cg.zoomTime = cg.time;
}

void CG_ZoomUp_f( void ) { 
	if ( !cg.zoomed ) {
		return;
	}
	cg.zoomed = qfalse;
	cg.zoomTime = cg.time;
}


/*
====================
CG_CalcFov

Fixed fov at intermissions, otherwise account for fov variable and zooms.
====================
*/
#define	WAVE_AMPLITUDE	1
#define	WAVE_FREQUENCY	0.4

static int CG_CalcFov( void ) {
	float	x;
	float	phase;
	float	v;
	int		contents;
	float	fov_x, fov_y;
	float	zoomFov;
	float	f;
	int		inwater;

	if ( cg.predictedPlayerState.pm_type == PM_INTERMISSION ) {
		// if in intermission, use a fixed value
		fov_x = 90;
        cg.fov = fov_x = 90;
	} else {
		// user selectable
		if ( cgs.dmflags & DF_FIXED_FOV ) {
			// dmflag to prevent wide fov for all clients
			fov_x = 90;
		} else {
			fov_x = cg_fov.value;
			if ( fov_x < 1 ) {
				fov_x = 1;
			} else if ( fov_x > 160 ) {
				fov_x = 160;
			}
		}

        cg.fov = fov_x;

		// account for zooms
		zoomFov = cg_zoomFov.value;
		if ( zoomFov < 1 ) {
			zoomFov = 1;
		} else if ( zoomFov > 160 ) {
			zoomFov = 160;
		}

		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 );
			}
		} else {
			f = ( cg.time - cg.zoomTime ) / (float)ZOOM_TIME;
			if ( f <= 1.0 ) {
				fov_x = zoomFov + f * ( fov_x - zoomFov );
			}
		}
	}

    	if ( cg_fovAspectAdjust.integer ) {
		// Based on LordHavoc's code for Darkplaces
		// http://www.quakeworld.nu/forum/topic/53/what-does-your-qw-look-like/page/30
		const float baseAspect = 0.75f; // 3/4
		const float aspect = (float)cg.refdef.width/(float)cg.refdef.height;
		const float desiredFov = fov_x;

		fov_x = atan2( tan( desiredFov*M_PI / 360.0f ) * baseAspect*aspect, 1 )*360.0f / M_PI;
	}

	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;
	}


	// 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;
}



/*
===============
CG_DamageBlendBlob

===============
*/
static void CG_DamageBlendBlob( void ) {
	int			t;
	int			maxTime;
	refEntity_t		ent;

	if (!cg_blood.integer) {
		return;
	}

	if ( !cg.damageValue ) {
		return;
	}

	//if (cg.cameraMode) {
	//	return;
	//}

	// ragePro systems can't fade blends, so don't obscure the screen
	if ( cgs.glconfig.hardwareType == GLHW_RAGEPRO ) {
		return;
	}

	maxTime = DAMAGE_TIME;
	t = cg.time - cg.damageTime;
	if ( t <= 0 || t >= maxTime ) {
		return;
	}


	memset( &ent, 0, sizeof( ent ) );
	ent.reType = RT_SPRITE;
	ent.renderfx = RF_FIRST_PERSON;

	VectorMA( cg.refdef.vieworg, 8, cg.refdef.viewaxis[0], ent.origin );
	VectorMA( ent.origin, cg.damageX * -8, cg.refdef.viewaxis[1], ent.origin );
	VectorMA( ent.origin, cg.damageY * 8, cg.refdef.viewaxis[2], ent.origin );

	ent.radius = cg.damageValue * 3;
	ent.customShader = cgs.media.viewBloodShader;
	ent.shaderRGBA[0] = 255;
	ent.shaderRGBA[1] = 255;
	ent.shaderRGBA[2] = 255;
	ent.shaderRGBA[3] = 200 * ( 1.0 - ((float)t / maxTime) );
	trap_R_AddRefEntityToScene( &ent );
}


/*
===============
CG_CalcViewValues

Sets cg.refdef view values
===============
*/
// Q3Rally Code Start
static vec3_t oldAngles; // used for joystick and keyboard control modes
// END
static int CG_CalcViewValues( void ) {
	playerState_t	*ps;

	memset( &cg.refdef, 0, sizeof( cg.refdef ) );

	// strings for in game rendering
	// Q_strncpyz( cg.refdef.text[0], "Park Ranger", sizeof(cg.refdef.text[0]) );
	// Q_strncpyz( cg.refdef.text[1], "19", sizeof(cg.refdef.text[1]) );

	// calculate size of 3D view
	CG_CalcVrect();

	ps = &cg.predictedPlayerState;
/*
	if (cg.cameraMode) {
		vec3_t origin, angles;
		if (trap_getCameraInfo(cg.time, &origin, &angles)) {
			VectorCopy(origin, cg.refdef.vieworg);
			angles[ROLL] = 0;
			VectorCopy(angles, cg.refdefViewAngles);
			AnglesToAxis( cg.refdefViewAngles, cg.refdef.viewaxis );
			return CG_CalcFov();
		} else {
			cg.cameraMode = qfalse;
		}
	}
*/

// Q3Rally Code Start
	{
		usercmd_t	latestCmd;
		int			current = trap_GetCurrentCmdNumber();

		trap_GetUserCmd( current, &latestCmd );
		PM_UpdateViewAngles( ps, &latestCmd, cg_controlMode.integer );
	}
// END

	// intermission view
	if ( ps->pm_type == PM_INTERMISSION ) {
		VectorCopy( ps->origin, cg.refdef.vieworg );
// STONELANCE (uses new way of sending view angles)
//		VectorCopy( ps->viewangles, cg.refdefViewAngles );
		cg.refdefViewAngles[PITCH] = SHORT2ANGLE(ps->damagePitch);
		cg.refdefViewAngles[YAW] = SHORT2ANGLE(ps->damageYaw);
		cg.refdefViewAngles[ROLL] = 0;
// END
		AnglesToAxis( cg.refdefViewAngles, cg.refdef.viewaxis );
		return CG_CalcFov();
	}

// Q3Rally Code Start
/*
	cg.bobcycle = cg.bobfracsin = cg.xyspeed = 0;
	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 );
//	VectorCopy( ps->viewangles, cg.refdefViewAngles );

	if ( ps->pm_flags & PMF_OBSERVE )
	{
		vec3_t	forward, right, up;

		VectorCopy( ps->viewangles, cg.refdefViewAngles );
/*
		if (!cg_paused.integer){
			Com_Printf("pitch: angles2 %f, damage %f, viewangle %f\n", cg.predictedPlayerEntity.currentState.angles2[PITCH], SHORT2ANGLE(ps->damagePitch), ps->viewangles[PITCH]);
			Com_Printf("yaw: angles2 %f, damage %f, viewangle %f\n", cg.predictedPlayerEntity.currentState.angles2[YAW], SHORT2ANGLE(ps->damageYaw), ps->viewangles[YAW]);
			Com_Printf( "origin: %f %f %f, vel %f %f %f\n", cg.refdef.vieworg[0], cg.refdef.vieworg[1], cg.refdef.vieworg[2], ps->velocity[0], ps->velocity[1], ps->velocity[2] );
		}
*/
		AngleVectors(cg.refdefViewAngles, forward, right, up);
		VectorMA(cg.refdef.vieworg, ps->velocity[0], forward, cg.refdef.vieworg);
		VectorMA(cg.refdef.vieworg, ps->velocity[1], right, cg.refdef.vieworg);
		VectorMA(cg.refdef.vieworg, ps->velocity[2], up, cg.refdef.vieworg);
	}
	else if (cgs.clientinfo[cg.snap->ps.clientNum].controlMode == CT_JOYSTICK || ps->pm_flags & PMF_FOLLOW ){
		float angle, f, scale;

		VectorCopy( ps->viewangles, cg.refdefViewAngles );
		cg.refdefViewAngles[YAW] = AngleNormalize360(cg.refdefViewAngles[YAW]);
//		cg.refdefViewAngles[PITCH] = AngleNormalize180(cg.refdefViewAngles[PITCH]);
		cg.refdefViewAngles[PITCH] = 0;
		cg.refdefViewAngles[ROLL] = 0;

		angle = abs(AngleDifference(cg.refdefViewAngles[YAW], oldAngles[YAW]));
		scale = floor(angle / 10 + 1); //changed back to 10 from 5

		scale *= (1 + cg_tightCamTracking.value); // changed from 1 to 2

		f = scale * cg.frametime / 1000.0F;
		if (f > 1)
			f = 1;
		if (f < 0)
			f = 0;

		cg.refdefViewAngles[YAW] = LerpAngle(oldAngles[YAW], cg.refdefViewAngles[YAW], f);
//		cg.refdefViewAngles[PITCH] = LerpAngle(oldAngles[PITCH], cg.refdefViewAngles[PITCH], f);

		cg.refdefViewAngles[YAW] = AngleNormalize360(cg.refdefViewAngles[YAW]);
//		cg.refdefViewAngles[PITCH] = AngleNormalize180(cg.refdefViewAngles[PITCH]);

		VectorCopy(cg.refdefViewAngles, oldAngles);
	}
	else {
//		if( !cg_paused.integer )
//			Com_Printf( "5 predictedPlayerState damageYaw %d\n", ps->damageYaw );

		cg.refdefViewAngles[PITCH] = SHORT2ANGLE(ps->damagePitch);
		cg.refdefViewAngles[YAW] = SHORT2ANGLE(ps->damageYaw);
		cg.refdefViewAngles[ROLL] = 0;
	}

	// rear view mirror setup
	if( cg_drawRearView.integer )
	{
		AnglesToAxis( ps->viewangles, cg.mirrorRefdef.viewaxis );
		VectorInverse( cg.mirrorRefdef.viewaxis[0] );
		VectorInverse( cg.mirrorRefdef.viewaxis[1] );

		VectorCopy( ps->origin, cg.mirrorRefdef.vieworg );
		VectorMA( cg.mirrorRefdef.vieworg, 16, cg.mirrorRefdef.viewaxis[2], cg.mirrorRefdef.vieworg );
	}
	
	/* TBB - minimap view setup 
	todo: make the viewpoint as high as possible,
		and not following player movement
		may have to set new standard in level design
		(center the entire map to origin)
	*/
	if( cg_drawMMap.integer )
	{
		vec3_t		angles;
		vec3_t		temp[3];	//temporary viewaxis 3x3 matrix
		//vec3_t		tempvec;	//temporary vector

#if 1
		// Use car yaw to rotate map.
		angles[ROLL] = 0;
		angles[PITCH] = 0;
		angles[YAW] = ps->viewangles[YAW];
#else
		// Use third-person mouse view (not car viewpoint)
		angles[ROLL] = 0;
		angles[PITCH] = 0; // SHORT2ANGLE(ps->damagePitch);
		angles[YAW] = SHORT2ANGLE(ps->damageYaw);
#endif

		AnglesToAxis( angles, cg.mmapRefdef.viewaxis );

		// Make top face screen.
		AxisCopy( cg.mmapRefdef.viewaxis, temp );
		temp[2][0] = cg.mmapRefdef.viewaxis[0][0];
		temp[2][1] = cg.mmapRefdef.viewaxis[0][1];
		temp[2][2] = cg.mmapRefdef.viewaxis[0][2];

		temp[0][0] = -cg.mmapRefdef.viewaxis[2][0];
		temp[0][1] = -cg.mmapRefdef.viewaxis[2][1];
		temp[0][2] = -cg.mmapRefdef.viewaxis[2][2];

		AxisCopy( temp, cg.mmapRefdef.viewaxis );

		//VectorInverse( cg.mirrorRefdef.viewaxis[0] );
		//VectorInverse( cg.mirrorRefdef.viewaxis[1] );
		//VectorInverse( cg.mirrorRefdef.viewaxis[2] );		

		//RotateAroundDirection( cg.mmapRefdef.viewaxis, -30 ); //only rotates yaw/forward (x-axis) dir

		//AngleVectors(cg.refdefViewAngles, forward, right, up); //player view angle defined
		
		/* pitch downward -90degrees off origin, very high and stationary 8192 */
		//VectorInverse( cg.mmapRefdef.viewaxis[0] );
		//VectorInverse( cg.mmapRefdef.viewaxis[1] );
		//VectorInverse( cg.mmapRefdef.viewaxis[2] );
		//VectorCopy( cg.mmapRefdef.viewaxis[0], cg.mmapRefdef.viewaxis[2] );
		//VectorInverse( cg.mmapRefdef.viewaxis[2] );

		//VectorClear( temp );
		//temp[3] = 0, 0, 0;
		//temp[3][3] = { {1, 1, 0}, {0, 0, 0}, {0, 0, 1} } ;

		/* official
		cg.mmapRefdef.vieworg[0] = 0; // + : forward
		cg.mmapRefdef.vieworg[1] = 0; // + : left
		cg.mmapRefdef.vieworg[2] = 512; // + : up
		*/

		VectorCopy( ps->origin, cg.mmapRefdef.vieworg );

		//VectorAdd( temp, cg.mmapRefdef.vieworg, cg.mmapRefdef.vieworg );
		cg.mmapRefdef.vieworg[0] += 0; // behind player
		cg.mmapRefdef.vieworg[1] += 0; // dont need
		cg.mmapRefdef.vieworg[2] += 8192; // above player
		//VectorMA( cg.mmapRefdef.vieworg, 16, cg.mmapRefdef.viewaxis[ROLL], cg.mmapRefdef.vieworg );		
		//VectorMA( cg.mmapRefdef.vieworg, 2, cg.mmapRefdef.viewaxis[PITCH], cg.mmapRefdef.vieworg );
		
		// draw a 2D icon for other players, instead of rendering
		// in 3d
		/*
		if ( !cg_draw3dIcons.integer && cg_drawIcons.integer ) {
			qhandle_t	icon_player;

			icon_player = cg_weapons[ cg.predictedPlayerState.weapon ].ammoIcon;
			if ( icon_player ) {
				CG_DrawPic( CHAR_WIDTH*3 + TEXT_ICON_SPACE, 432, ICON_SIZE, ICON_SIZE, icon_player );
			}
		}*/
	}
		/* if we didn't draw a 3D icon, draw a 2D icon for ammo
		if ( !cg_draw3dIcons.integer && cg_drawIcons.integer ) {
			qhandle_t	icon;

			icon = cg_weapons[ cg.predictedPlayerState.weapon ].ammoIcon;
			if ( icon ) {
				CG_DrawPic( CHAR_WIDTH*3 + TEXT_ICON_SPACE, 432, ICON_SIZE, ICON_SIZE, icon );
			}*/
	//TBB FIN

// END

	if (cg_cameraOrbit.integer) {
		if (cg.time > cg.nextOrbitTime) {
			cg.nextOrbitTime = cg.time + cg_cameraOrbitDelay.integer;
			cg_thirdPersonAngle.value += cg_cameraOrbit.value;
		}
	}

	// add error decay
// Q3Rally Code Start
	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 );
// Q3Rally Code Start
			VectorMA( cg.mirrorRefdef.vieworg, f, cg.predictedError, cg.mirrorRefdef.vieworg );
// END
		} else {
			cg.predictedErrorTime = 0;
		}
	}

// Q3Rally Code Start
	if ((!isRaceObserver( ps->clientNum )
		&& ps->persistant[PERS_TEAM] != TEAM_SPECTATOR) || ps->pm_flags & PMF_FOLLOW)
	{
// END
		if ( cg.renderingThirdPerson ) {
			// back away from character
			CG_OffsetThirdPersonView();
		} else {
			// offset for local bobbing and kicks
			CG_OffsetFirstPersonView();
		}
// Q3Rally Code Start
	}
// END

	// position eye relative to origin
	AnglesToAxis( cg.refdefViewAngles, cg.refdef.viewaxis );

	if ( cg.hyperspace ) {
		cg.refdef.rdflags |= RDF_NOWORLDMODEL | RDF_HYPERSPACE;
	}

	// field of view
	return CG_CalcFov();
}


/*
=====================
CG_PowerupTimerSounds
=====================
*/
static void CG_PowerupTimerSounds( void ) {
	int		i;
	int		t;

	// powerup timers going away
	for ( i = 0 ; i < MAX_POWERUPS ; i++ ) {
		t = cg.snap->ps.powerups[i];
		if ( t <= cg.time ) {
			continue;
		}

// Q3Rally Code Start
		if( i == PW_TURBO && ( t - cg.time ) / POWERUP_BLINK_TIME != ( t - cg.oldTime ) / POWERUP_BLINK_TIME )
			trap_S_StartSound(  cg.snap->ps.origin, cg.snap->ps.clientNum, CHAN_ITEM, cgs.media.turboSound );
// END

		if ( t - cg.time >= POWERUP_BLINKS * POWERUP_BLINK_TIME ) {
			continue;
		}

// Q3Rally Code Start
//		if ( ( t - cg.time ) / POWERUP_BLINK_TIME != ( t - cg.oldTime ) / POWERUP_BLINK_TIME ) {
		if ( i != PW_TURBO && ( t - cg.time ) / POWERUP_BLINK_TIME != ( t - cg.oldTime ) / POWERUP_BLINK_TIME ) {
// END
			trap_S_StartSound( NULL, cg.snap->ps.clientNum, CHAN_ITEM, cgs.media.wearOffSound );
		}
	}
}

/*
=====================
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.
=================
*/

// Q3Rally Code Start
//static int	soundTime = 0;
// END

void CG_DrawActiveFrame( int serverTime, stereoFrame_t stereoView, qboolean demoPlayback ) {
	int		inwater;
// Q3Rally Code Start
	//int		index;
// END

	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_DrawInformation();
		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_DrawInformation();
		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();

// Q3Rally Code Start - FIXME: remove for incar views
	if( !cg_thirdPerson.integer )
		trap_Cvar_Set( "cg_thirdPerson", "1" );
// END

	// decide on third person view
	cg.renderingThirdPerson = cg.snap->ps.persistant[PERS_TEAM] != TEAM_SPECTATOR
							&& (cg_thirdPerson.integer || (cg.snap->ps.stats[STAT_HEALTH] <= 0));

	// build cg.refdef
	inwater = CG_CalcViewValues();

	// first person blend blobs, done after AnglesToAxis
	if ( !cg.renderingThirdPerson ) {
		CG_DamageBlendBlob();
	}

	// build the render lists
	if ( !cg.hyperspace ) {
		CG_AddPacketEntities();			// adter calcViewValues, so predicted player state is correct
		CG_AddMarks();
		CG_AddParticles ();
		CG_AddLocalEntities();
// Q3Rally Code Start
		// used for q3f atmospheric effects
		CG_AddAtmosphericEffects();
// END
	}
	CG_AddViewWeapon( &cg.predictedPlayerState );

	// add buffered sounds
	CG_PlayBufferedSounds();

#ifdef MISSIONPACK
	// play buffered voice chats
	CG_PlayBufferedVoiceChats();
#endif

	// 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 ) );

	// warning sounds when powerup is wearing off
	CG_PowerupTimerSounds();

	// 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 );
	}

// Q3Rally Code Start
	// play local rally sounds

	// play engine sounds
/*
	if( cg.snap->ps.persistant[PERS_TEAM] != TEAM_SPECTATOR )
	{
		index = (int) (10.0f * (cg.predictedPlayerState.stats[STAT_RPM] - CP_RPM_MIN) / (CP_RPM_MAX - CP_RPM_MIN));

		trap_S_AddRealLoopingSound( cg.predictedPlayerState.clientNum,
									cg.predictedPlayerState.origin,
									cg.predictedPlayerState.velocity,
									cgs.clientinfo[cg.predictedPlayerState.clientNum].sounds[index] );
	}
*/
/*
	if ( soundTime + 200 < cg.time ) {
		soundTime = cg.time;
		trap_S_StartSound( cg.predictedPlayerState.origin,
						cg.predictedPlayerState.clientNum,
						CHAN_AUTO,
						cgs.clientinfo[cg.predictedPlayerState.clientNum].sounds[index] );
	}
*/
// END
}