cg_players.c

quakeIII源码这个不用我多说吧

	//
	clientNum = cent->currentState.clientNum;
	if ( clientNum >= 0 && clientNum < MAX_CLIENTS ) {
		ci = &cgs.clientinfo[ clientNum ];
		if ( ci->fixedtorso ) {
			torsoAngles[PITCH] = 0.0f;
		}
	}

	// --------- roll -------------


	// lean towards the direction of travel
	VectorCopy( cent->currentState.pos.trDelta, velocity );
	speed = VectorNormalize( velocity );
	if ( speed ) {
		vec3_t	axis[3];
		float	side;

		speed *= 0.05f;

		AnglesToAxis( legsAngles, axis );
		side = speed * DotProduct( velocity, axis[1] );
		legsAngles[ROLL] -= side;

		side = speed * DotProduct( velocity, axis[0] );
		legsAngles[PITCH] += side;
	}

	//
	clientNum = cent->currentState.clientNum;
	if ( clientNum >= 0 && clientNum < MAX_CLIENTS ) {
		ci = &cgs.clientinfo[ clientNum ];
		if ( ci->fixedlegs ) {
			legsAngles[YAW] = torsoAngles[YAW];
			legsAngles[PITCH] = 0.0f;
			legsAngles[ROLL] = 0.0f;
		}
	}

	// pain twitch
	CG_AddPainTwitch( cent, torsoAngles );

	// pull the angles back out of the hierarchial chain
	AnglesSubtract( headAngles, torsoAngles, headAngles );
	AnglesSubtract( torsoAngles, legsAngles, torsoAngles );
	AnglesToAxis( legsAngles, legs );
	AnglesToAxis( torsoAngles, torso );
	AnglesToAxis( headAngles, head );
}


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

/*
===============
CG_HasteTrail
===============
*/
static void CG_HasteTrail( centity_t *cent ) {
	localEntity_t	*smoke;
	vec3_t			origin;
	int				anim;

	if ( cent->trailTime > cg.time ) {
		return;
	}
	anim = cent->pe.legs.animationNumber & ~ANIM_TOGGLEBIT;
	if ( anim != LEGS_RUN && anim != LEGS_BACK ) {
		return;
	}

	cent->trailTime += 100;
	if ( cent->trailTime < cg.time ) {
		cent->trailTime = cg.time;
	}

	VectorCopy( cent->lerpOrigin, origin );
	origin[2] -= 16;

	smoke = CG_SmokePuff( origin, vec3_origin, 
				  8, 
				  1, 1, 1, 1,
				  500, 
				  cg.time,
				  0,
				  0,
				  cgs.media.hastePuffShader );

	// use the optimized local entity add
	smoke->leType = LE_SCALE_FADE;
}

#ifdef MISSIONPACK
/*
===============
CG_BreathPuffs
===============
*/
static void CG_BreathPuffs( centity_t *cent, refEntity_t *head) {
	clientInfo_t *ci;
	vec3_t up, origin;
	int contents;

	ci = &cgs.clientinfo[ cent->currentState.number ];

	if (!cg_enableBreath.integer) {
		return;
	}
	if ( cent->currentState.number == cg.snap->ps.clientNum && !cg.renderingThirdPerson) {
		return;
	}
	if ( cent->currentState.eFlags & EF_DEAD ) {
		return;
	}
	contents = trap_CM_PointContents( head->origin, 0 );
	if ( contents & ( CONTENTS_WATER | CONTENTS_SLIME | CONTENTS_LAVA ) ) {
		return;
	}
	if ( ci->breathPuffTime > cg.time ) {
		return;
	}

	VectorSet( up, 0, 0, 8 );
	VectorMA(head->origin, 8, head->axis[0], origin);
	VectorMA(origin, -4, head->axis[2], origin);
	CG_SmokePuff( origin, up, 16, 1, 1, 1, 0.66f, 1500, cg.time, cg.time + 400, LEF_PUFF_DONT_SCALE, cgs.media.shotgunSmokePuffShader );
	ci->breathPuffTime = cg.time + 2000;
}

/*
===============
CG_DustTrail
===============
*/
static void CG_DustTrail( centity_t *cent ) {
	int				anim;
	localEntity_t	*dust;
	vec3_t end, vel;
	trace_t tr;

	if (!cg_enableDust.integer)
		return;

	if ( cent->dustTrailTime > cg.time ) {
		return;
	}

	anim = cent->pe.legs.animationNumber & ~ANIM_TOGGLEBIT;
	if ( anim != LEGS_LANDB && anim != LEGS_LAND ) {
		return;
	}

	cent->dustTrailTime += 40;
	if ( cent->dustTrailTime < cg.time ) {
		cent->dustTrailTime = cg.time;
	}

	VectorCopy(cent->currentState.pos.trBase, end);
	end[2] -= 64;
	CG_Trace( &tr, cent->currentState.pos.trBase, NULL, NULL, end, cent->currentState.number, MASK_PLAYERSOLID );

	if ( !(tr.surfaceFlags & SURF_DUST) )
		return;

	VectorCopy( cent->currentState.pos.trBase, end );
	end[2] -= 16;

	VectorSet(vel, 0, 0, -30);
	dust = CG_SmokePuff( end, vel,
				  24,
				  .8f, .8f, 0.7f, 0.33f,
				  500,
				  cg.time,
				  0,
				  0,
				  cgs.media.dustPuffShader );
}

#endif

/*
===============
CG_TrailItem
===============
*/
static void CG_TrailItem( centity_t *cent, qhandle_t hModel ) {
	refEntity_t		ent;
	vec3_t			angles;
	vec3_t			axis[3];

	VectorCopy( cent->lerpAngles, angles );
	angles[PITCH] = 0;
	angles[ROLL] = 0;
	AnglesToAxis( angles, axis );

	memset( &ent, 0, sizeof( ent ) );
	VectorMA( cent->lerpOrigin, -16, axis[0], ent.origin );
	ent.origin[2] += 16;
	angles[YAW] += 90;
	AnglesToAxis( angles, ent.axis );

	ent.hModel = hModel;
	trap_R_AddRefEntityToScene( &ent );
}


/*
===============
CG_PlayerFlag
===============
*/
static void CG_PlayerFlag( centity_t *cent, qhandle_t hSkin, refEntity_t *torso ) {
	clientInfo_t	*ci;
	refEntity_t	pole;
	refEntity_t	flag;
	vec3_t		angles, dir;
	int			legsAnim, flagAnim, updateangles;
	float		angle, d;

	// show the flag pole model
	memset( &pole, 0, sizeof(pole) );
	pole.hModel = cgs.media.flagPoleModel;
	VectorCopy( torso->lightingOrigin, pole.lightingOrigin );
	pole.shadowPlane = torso->shadowPlane;
	pole.renderfx = torso->renderfx;
	CG_PositionEntityOnTag( &pole, torso, torso->hModel, "tag_flag" );
	trap_R_AddRefEntityToScene( &pole );

	// show the flag model
	memset( &flag, 0, sizeof(flag) );
	flag.hModel = cgs.media.flagFlapModel;
	flag.customSkin = hSkin;
	VectorCopy( torso->lightingOrigin, flag.lightingOrigin );
	flag.shadowPlane = torso->shadowPlane;
	flag.renderfx = torso->renderfx;

	VectorClear(angles);

	updateangles = qfalse;
	legsAnim = cent->currentState.legsAnim & ~ANIM_TOGGLEBIT;
	if( legsAnim == LEGS_IDLE || legsAnim == LEGS_IDLECR ) {
		flagAnim = FLAG_STAND;
	} else if ( legsAnim == LEGS_WALK || legsAnim == LEGS_WALKCR ) {
		flagAnim = FLAG_STAND;
		updateangles = qtrue;
	} else {
		flagAnim = FLAG_RUN;
		updateangles = qtrue;
	}

	if ( updateangles ) {

		VectorCopy( cent->currentState.pos.trDelta, dir );
		// add gravity
		dir[2] += 100;
		VectorNormalize( dir );
		d = DotProduct(pole.axis[2], dir);
		// if there is anough movement orthogonal to the flag pole
		if (fabs(d) < 0.9) {
			//
			d = DotProduct(pole.axis[0], dir);
			if (d > 1.0f) {
				d = 1.0f;
			}
			else if (d < -1.0f) {
				d = -1.0f;
			}
			angle = acos(d);

			d = DotProduct(pole.axis[1], dir);
			if (d < 0) {
				angles[YAW] = 360 - angle * 180 / M_PI;
			}
			else {
				angles[YAW] = angle * 180 / M_PI;
			}
			if (angles[YAW] < 0)
				angles[YAW] += 360;
			if (angles[YAW] > 360)
				angles[YAW] -= 360;

			//vectoangles( cent->currentState.pos.trDelta, tmpangles );
			//angles[YAW] = tmpangles[YAW] + 45 - cent->pe.torso.yawAngle;
			// change the yaw angle
			CG_SwingAngles( angles[YAW], 25, 90, 0.15f, &cent->pe.flag.yawAngle, &cent->pe.flag.yawing );
		}

		/*
		d = DotProduct(pole.axis[2], dir);
		angle = Q_acos(d);

		d = DotProduct(pole.axis[1], dir);
		if (d < 0) {
			angle = 360 - angle * 180 / M_PI;
		}
		else {
			angle = angle * 180 / M_PI;
		}
		if (angle > 340 && angle < 20) {
			flagAnim = FLAG_RUNUP;
		}
		if (angle > 160 && angle < 200) {
			flagAnim = FLAG_RUNDOWN;
		}
		*/
	}

	// set the yaw angle
	angles[YAW] = cent->pe.flag.yawAngle;
	// lerp the flag animation frames
	ci = &cgs.clientinfo[ cent->currentState.clientNum ];
	CG_RunLerpFrame( ci, &cent->pe.flag, flagAnim, 1 );
	flag.oldframe = cent->pe.flag.oldFrame;
	flag.frame = cent->pe.flag.frame;
	flag.backlerp = cent->pe.flag.backlerp;

	AnglesToAxis( angles, flag.axis );
	CG_PositionRotatedEntityOnTag( &flag, &pole, pole.hModel, "tag_flag" );

	trap_R_AddRefEntityToScene( &flag );
}


#ifdef MISSIONPACK // bk001204
/*
===============
CG_PlayerTokens
===============
*/
static void CG_PlayerTokens( centity_t *cent, int renderfx ) {
	int			tokens, i, j;
	float		angle;
	refEntity_t	ent;
	vec3_t		dir, origin;
	skulltrail_t *trail;
	trail = &cg.skulltrails[cent->currentState.number];
	tokens = cent->currentState.generic1;
	if ( !tokens ) {
		trail->numpositions = 0;
		return;
	}

	if ( tokens > MAX_SKULLTRAIL ) {
		tokens = MAX_SKULLTRAIL;
	}

	// add skulls if there are more than last time
	for (i = 0; i < tokens - trail->numpositions; i++) {
		for (j = trail->numpositions; j > 0; j--) {
			VectorCopy(trail->positions[j-1], trail->positions[j]);
		}
		VectorCopy(cent->lerpOrigin, trail->positions[0]);
	}
	trail->numpositions = tokens;

	// move all the skulls along the trail
	VectorCopy(cent->lerpOrigin, origin);
	for (i = 0; i < trail->numpositions; i++) {
		VectorSubtract(trail->positions[i], origin, dir);
		if (VectorNormalize(dir) > 30) {
			VectorMA(origin, 30, dir, trail->positions[i]);
		}
		VectorCopy(trail->positions[i], origin);
	}

	memset( &ent, 0, sizeof( ent ) );
	if( cgs.clientinfo[ cent->currentState.clientNum ].team == TEAM_BLUE ) {
		ent.hModel = cgs.media.redCubeModel;
	} else {
		ent.hModel = cgs.media.blueCubeModel;
	}
	ent.renderfx = renderfx;

	VectorCopy(cent->lerpOrigin, origin);
	for (i = 0; i < trail->numpositions; i++) {
		VectorSubtract(origin, trail->positions[i], ent.axis[0]);
		ent.axis[0][2] = 0;
		VectorNormalize(ent.axis[0]);
		VectorSet(ent.axis[2], 0, 0, 1);
		CrossProduct(ent.axis[0], ent.axis[2], ent.axis[1]);

		VectorCopy(trail->positions[i], ent.origin);
		angle = (((cg.time + 500 * MAX_SKULLTRAIL - 500 * i) / 16) & 255) * (M_PI * 2) / 255;
		ent.origin[2] += sin(angle) * 10;
		trap_R_AddRefEntityToScene( &ent );
		VectorCopy(trail->positions[i], origin);
	}
}
#endif


/*
===============
CG_PlayerPowerups
===============
*/
static void CG_PlayerPowerups( centity_t *cent, refEntity_t *torso ) {
	int		powerups;
	clientInfo_t	*ci;

	powerups = cent->currentState.powerups;
	if ( !powerups ) {
		return;
	}

	// quad gives a dlight
	if ( powerups & ( 1 << PW_QUAD ) ) {
		trap_R_AddLightToScene( cent->lerpOrigin, 200 + (rand()&31), 0.2f, 0.2f, 1 );
	}

	// flight plays a looped sound
	if ( powerups & ( 1 << PW_FLIGHT ) ) {
		trap_S_AddLoopingSound( cent->currentState.number, cent->lerpOrigin, vec3_origin, cgs.media.flightSound );
	}

	ci = &cgs.clientinfo[ cent->currentState.clientNum ];
	// redflag
	if ( powerups & ( 1 << PW_REDFLAG ) ) {
		if (ci->newAnims) {
			CG_PlayerFlag( cent, cgs.media.redFlagFlapSkin, torso );
		}
		else {
			CG_TrailItem( cent, cgs.media.redFlagModel );
		}
		trap_R_AddLightToScene( cent->lerpOrigin, 200 + (rand()&31), 1.0, 0.2f, 0.2f );
	}

	// blueflag
	if ( powerups & ( 1 << PW_BLUEFLAG ) ) {
		if (ci->newAnims){
			CG_PlayerFlag( cent, cgs.media.blueFlagFlapSkin, torso );
		}
		else {
			CG_TrailItem( cent, cgs.media.blueFlagModel );
		}
		trap_R_AddLightToScene( cent->lerpOrigin, 200 + (rand()&31), 0.2f, 0.2f, 1.0 );
	}

	// neutralflag
	if ( powerups & ( 1 << PW_NEUTRALFLAG ) ) {
		if (ci->newAnims) {
			CG_PlayerFlag( cent, cgs.media.neutralFlagFlapSkin, torso );
		}
		else {
			CG_TrailItem( cent, cgs.media.neutralFlagModel );
		}
		trap_R_AddLightToScene( cent->lerpOrigin, 200 + (rand()&31), 1.0, 1.0, 1.0 );
	}

	// haste leaves smoke trails
	if ( powerups & ( 1 << PW_HASTE ) ) {
		CG_HasteTrail( cent );
	}
}


/*
===============
CG_PlayerFloatSprite

Float a sprite over the player's head
===============
*/
static void CG_PlayerFloatSprite( centity_t *cent, qhandle_t shader ) {
	int				rf;
	refEntity_t		ent;

	if ( cent->currentState.number == cg.snap->ps.clientNum && !cg.renderingThirdPerson ) {
		rf = RF_THIRD_PERSON;		// only show in mirrors
	} else {
		rf = 0;
	}

	memset( &ent, 0, sizeof( ent ) );
	VectorCopy( cent->lerpOrigin, ent.origin );
	ent.origin[2] += 48;