Subversion Repositories Kolibri OS

/*

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.

*/

// cl_main.c  -- client main loop

#include "quakedef.h"

// we need to declare some mouse variables here, because the menu system

// references them even when on a unix system.

// these two are not intended to be set directly

cvar_t	cl_name = {"_cl_name", "player", true};

cvar_t	cl_color = {"_cl_color", "0", true};

cvar_t	cl_shownet = {"cl_shownet","0"};	// can be 0, 1, or 2

cvar_t	cl_nolerp = {"cl_nolerp","0"};

cvar_t	lookspring = {"lookspring","0", true};

cvar_t	lookstrafe = {"lookstrafe","0", true};

cvar_t	sensitivity = {"sensitivity","3", true};

cvar_t	m_pitch = {"m_pitch","0.022", true};

cvar_t	m_yaw = {"m_yaw","0.022", true};

cvar_t	m_forward = {"m_forward","1", true};

cvar_t	m_side = {"m_side","0.8", true};

client_static_t	cls;

client_state_t	cl;

// FIXME: put these on hunk?

efrag_t			cl_efrags[MAX_EFRAGS];

entity_t		cl_entities[MAX_EDICTS];

entity_t		cl_static_entities[MAX_STATIC_ENTITIES];

lightstyle_t	cl_lightstyle[MAX_LIGHTSTYLES];

dlight_t		cl_dlights[MAX_DLIGHTS];

int				cl_numvisedicts;

entity_t		*cl_visedicts[MAX_VISEDICTS];

/*

=====================

CL_ClearState

=====================

*/

void CL_ClearState (void)

{

	int			i;

	if (!sv.active)

		Host_ClearMemory ();

// wipe the entire cl structure

	memset (&cl, 0, sizeof(cl));

	SZ_Clear (&cls.message);

// clear other arrays

	memset (cl_efrags, 0, sizeof(cl_efrags));

	memset (cl_entities, 0, sizeof(cl_entities));

	memset (cl_dlights, 0, sizeof(cl_dlights));

	memset (cl_lightstyle, 0, sizeof(cl_lightstyle));

	memset (cl_temp_entities, 0, sizeof(cl_temp_entities));

	memset (cl_beams, 0, sizeof(cl_beams));

//

// allocate the efrags and chain together into a free list

//

	cl.free_efrags = cl_efrags;

	for (i=0 ; i

		cl.free_efrags[i].entnext = &cl.free_efrags[i+1];

	cl.free_efrags[i].entnext = NULL;

}

/*

=====================

CL_Disconnect

Sends a disconnect message to the server

This is also called on Host_Error, so it shouldn't cause any errors

=====================

*/

void CL_Disconnect (void)

{

// stop sounds (especially looping!)

	S_StopAllSounds (true);

// bring the console down and fade the colors back to normal

//	SCR_BringDownConsole ();

// if running a local server, shut it down

	if (cls.demoplayback)

		CL_StopPlayback ();

	else if (cls.state == ca_connected)

	{

		if (cls.demorecording)

			CL_Stop_f ();

		Con_DPrintf ("Sending clc_disconnect\n");

		SZ_Clear (&cls.message);

		MSG_WriteByte (&cls.message, clc_disconnect);

		NET_SendUnreliableMessage (cls.netcon, &cls.message);

		SZ_Clear (&cls.message);

		NET_Close (cls.netcon);

		cls.state = ca_disconnected;

		if (sv.active)

			Host_ShutdownServer(false);

	}

	cls.demoplayback = cls.timedemo = false;

	cls.signon = 0;

}

void CL_Disconnect_f (void)

{

	CL_Disconnect ();

	if (sv.active)

		Host_ShutdownServer (false);

}

/*

=====================

CL_EstablishConnection

Host should be either "local" or a net address to be passed on

=====================

*/

void CL_EstablishConnection (char *host)

{

	if (cls.state == ca_dedicated)

		return;

	if (cls.demoplayback)

		return;

	CL_Disconnect ();

	cls.netcon = NET_Connect (host);

	if (!cls.netcon)

		Host_Error ("CL_Connect: connect failed\n");

	Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);

	cls.demonum = -1;			// not in the demo loop now

	cls.state = ca_connected;

	cls.signon = 0;				// need all the signon messages before playing

}

/*

=====================

CL_SignonReply

An svc_signonnum has been received, perform a client side setup

=====================

*/

void CL_SignonReply (void)

{

	char 	str[8192];

Con_DPrintf ("CL_SignonReply: %i\n", cls.signon);

	switch (cls.signon)

	{

	case 1:

		MSG_WriteByte (&cls.message, clc_stringcmd);

		MSG_WriteString (&cls.message, "prespawn");

		break;

	case 2:

		MSG_WriteByte (&cls.message, clc_stringcmd);

		MSG_WriteString (&cls.message, va("name \"%s\"\n", cl_name.string));

		MSG_WriteByte (&cls.message, clc_stringcmd);

		MSG_WriteString (&cls.message, va("color %i %i\n", ((int)cl_color.value)>>4, ((int)cl_color.value)&15));

		MSG_WriteByte (&cls.message, clc_stringcmd);

		sprintf (str, "spawn %s", cls.spawnparms);

		MSG_WriteString (&cls.message, str);

		break;

	case 3:

		MSG_WriteByte (&cls.message, clc_stringcmd);

		MSG_WriteString (&cls.message, "begin");

		Cache_Report ();		// print remaining memory

		break;

	case 4:

		SCR_EndLoadingPlaque ();		// allow normal screen updates

		break;

	}

}

/*

=====================

CL_NextDemo

Called to play the next demo in the demo loop

=====================

*/

void CL_NextDemo (void)

{

	char	str[1024];

	if (cls.demonum == -1)

		return;		// don't play demos

	SCR_BeginLoadingPlaque ();

	if (!cls.demos[cls.demonum][0] || cls.demonum == MAX_DEMOS)

	{

		cls.demonum = 0;

		if (!cls.demos[cls.demonum][0])

		{

			Con_Printf ("No demos listed with startdemos\n");

			cls.demonum = -1;

			return;

		}

	}

	sprintf (str,"playdemo %s\n", cls.demos[cls.demonum]);

	Cbuf_InsertText (str);

	cls.demonum++;

}

/*

==============

CL_PrintEntities_f

==============

*/

void CL_PrintEntities_f (void)

{

	entity_t	*ent;

	int			i;

	for (i=0,ent=cl_entities ; i

	{

		Con_Printf ("%3i:",i);

		if (!ent->model)

		{

			Con_Printf ("EMPTY\n");

			continue;

		}

		Con_Printf ("%s:%2i  (%5.1f,%5.1f,%5.1f) [%5.1f %5.1f %5.1f]\n"

		,ent->model->name,ent->frame, ent->origin[0], ent->origin[1], ent->origin[2], ent->angles[0], ent->angles[1], ent->angles[2]);

	}

}

/*

===============

SetPal

Debugging tool, just flashes the screen

===============

*/

void SetPal (int i)

{

#if 0

	static int old;

	byte	pal[768];

	int		c;

	if (i == old)

		return;

	old = i;

	if (i==0)

		VID_SetPalette (host_basepal);

	else if (i==1)

	{

		for (c=0 ; c<768 ; c+=3)

		{

			pal[c] = 0;

			pal[c+1] = 255;

			pal[c+2] = 0;

		}

		VID_SetPalette (pal);

	}

	else

	{

		for (c=0 ; c<768 ; c+=3)

		{

			pal[c] = 0;

			pal[c+1] = 0;

			pal[c+2] = 255;

		}

		VID_SetPalette (pal);

	}

#endif

}

/*

===============

CL_AllocDlight

===============

*/

dlight_t *CL_AllocDlight (int key)

{

	int		i;

	dlight_t	*dl;

// first look for an exact key match

	if (key)

	{

		dl = cl_dlights;

		for (i=0 ; i

		{

			if (dl->key == key)

			{

				memset (dl, 0, sizeof(*dl));

				dl->key = key;

				return dl;

			}

		}

	}

// then look for anything else

	dl = cl_dlights;

	for (i=0 ; i

	{

		if (dl->die < cl.time)

		{

			memset (dl, 0, sizeof(*dl));

			dl->key = key;

			return dl;

		}

	}

	dl = &cl_dlights[0];

	memset (dl, 0, sizeof(*dl));

	dl->key = key;

	return dl;

}

/*

===============

CL_DecayLights

===============

*/

void CL_DecayLights (void)

{

	int			i;

	dlight_t	*dl;

	float		time;

	time = cl.time - cl.oldtime;

	dl = cl_dlights;

	for (i=0 ; i

	{

		if (dl->die < cl.time || !dl->radius)

			continue;

		dl->radius -= time*dl->decay;

		if (dl->radius < 0)

			dl->radius = 0;

	}

}

/*

===============

CL_LerpPoint

Determines the fraction between the last two messages that the objects

should be put at.

===============

*/

float	CL_LerpPoint (void)

{

	float	f, frac;

	f = cl.mtime[0] - cl.mtime[1];

	if (!f || cl_nolerp.value || cls.timedemo || sv.active)

	{

		cl.time = cl.mtime[0];

		return 1;

	}

	if (f > 0.1)

	{	// dropped packet, or start of demo

		cl.mtime[1] = cl.mtime[0] - 0.1;

		f = 0.1;

	}

	frac = (cl.time - cl.mtime[1]) / f;

//Con_Printf ("frac: %f\n",frac);

	if (frac < 0)

	{

		if (frac < -0.01)

		{

SetPal(1);

			cl.time = cl.mtime[1];

//				Con_Printf ("low frac\n");

		}

		frac = 0;

	}

	else if (frac > 1)

	{

		if (frac > 1.01)

		{

SetPal(2);

			cl.time = cl.mtime[0];

//				Con_Printf ("high frac\n");

		}

		frac = 1;

	}

	else

		SetPal(0);

	return frac;

}

/*

===============

CL_RelinkEntities

===============

*/

void CL_RelinkEntities (void)

{

	entity_t	*ent;

	int			i, j;

	float		frac, f, d;

	vec3_t		delta;

	float		bobjrotate;

	vec3_t		oldorg;

	dlight_t	*dl;

// determine partial update time

	frac = CL_LerpPoint ();

	cl_numvisedicts = 0;

//

// interpolate player info

//

	for (i=0 ; i<3 ; i++)

		cl.velocity[i] = cl.mvelocity[1][i] +

			frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);

	if (cls.demoplayback)

	{

	// interpolate the angles

		for (j=0 ; j<3 ; j++)

		{

			d = cl.mviewangles[0][j] - cl.mviewangles[1][j];

			if (d > 180)

				d -= 360;

			else if (d < -180)

				d += 360;

			cl.viewangles[j] = cl.mviewangles[1][j] + frac*d;

		}

	}

	bobjrotate = anglemod(100*cl.time);

// start on the entity after the world

	for (i=1,ent=cl_entities+1 ; i

	{

		if (!ent->model)

		{	// empty slot

			if (ent->forcelink)

				R_RemoveEfrags (ent);	// just became empty

			continue;

		}

// if the object wasn't included in the last packet, remove it

		if (ent->msgtime != cl.mtime[0])

		{

			ent->model = NULL;

			continue;

		}

		VectorCopy (ent->origin, oldorg);

		if (ent->forcelink)

		{	// the entity was not updated in the last message

			// so move to the final spot

			VectorCopy (ent->msg_origins[0], ent->origin);

			VectorCopy (ent->msg_angles[0], ent->angles);

		}

		else

		{	// if the delta is large, assume a teleport and don't lerp

			f = frac;

			for (j=0 ; j<3 ; j++)

			{

				delta[j] = ent->msg_origins[0][j] - ent->msg_origins[1][j];

				if (delta[j] > 100 || delta[j] < -100)

					f = 1;		// assume a teleportation, not a motion

			}

		// interpolate the origin and angles

			for (j=0 ; j<3 ; j++)

			{

				ent->origin[j] = ent->msg_origins[1][j] + f*delta[j];

				d = ent->msg_angles[0][j] - ent->msg_angles[1][j];

				if (d > 180)

					d -= 360;

				else if (d < -180)

					d += 360;

				ent->angles[j] = ent->msg_angles[1][j] + f*d;

			}

		}

// rotate binary objects locally

		if (ent->model->flags & EF_ROTATE)

			ent->angles[1] = bobjrotate;

		if (ent->effects & EF_BRIGHTFIELD)

			R_EntityParticles (ent);

#ifdef QUAKE2

		if (ent->effects & EF_DARKFIELD)

			R_DarkFieldParticles (ent);

#endif

		if (ent->effects & EF_MUZZLEFLASH)

		{

			vec3_t		fv, rv, uv;

			dl = CL_AllocDlight (i);

			VectorCopy (ent->origin,  dl->origin);

			dl->origin[2] += 16;

			AngleVectors (ent->angles, fv, rv, uv);

			VectorMA (dl->origin, 18, fv, dl->origin);

			dl->radius = 200 + (rand()&31);

			dl->minlight = 32;

			dl->die = cl.time + 0.1;

		}

		if (ent->effects & EF_BRIGHTLIGHT)

		{

			dl = CL_AllocDlight (i);

			VectorCopy (ent->origin,  dl->origin);

			dl->origin[2] += 16;

			dl->radius = 400 + (rand()&31);

			dl->die = cl.time + 0.001;

		}

		if (ent->effects & EF_DIMLIGHT)

		{

			dl = CL_AllocDlight (i);

			VectorCopy (ent->origin,  dl->origin);

			dl->radius = 200 + (rand()&31);

			dl->die = cl.time + 0.001;

		}

#ifdef QUAKE2

		if (ent->effects & EF_DARKLIGHT)

		{

			dl = CL_AllocDlight (i);

			VectorCopy (ent->origin,  dl->origin);

			dl->radius = 200.0 + (rand()&31);

			dl->die = cl.time + 0.001;

			dl->dark = true;

		}

		if (ent->effects & EF_LIGHT)

		{

			dl = CL_AllocDlight (i);

			VectorCopy (ent->origin,  dl->origin);

			dl->radius = 200;

			dl->die = cl.time + 0.001;

		}

#endif

		if (ent->model->flags & EF_GIB)

			R_RocketTrail (oldorg, ent->origin, 2);

		else if (ent->model->flags & EF_ZOMGIB)

			R_RocketTrail (oldorg, ent->origin, 4);

		else if (ent->model->flags & EF_TRACER)

			R_RocketTrail (oldorg, ent->origin, 3);

		else if (ent->model->flags & EF_TRACER2)

			R_RocketTrail (oldorg, ent->origin, 5);

		else if (ent->model->flags & EF_ROCKET)

		{

			R_RocketTrail (oldorg, ent->origin, 0);

			dl = CL_AllocDlight (i);

			VectorCopy (ent->origin, dl->origin);

			dl->radius = 200;

			dl->die = cl.time + 0.01;

		}

		else if (ent->model->flags & EF_GRENADE)

			R_RocketTrail (oldorg, ent->origin, 1);

		else if (ent->model->flags & EF_TRACER3)

			R_RocketTrail (oldorg, ent->origin, 6);

		ent->forcelink = false;

		if (i == cl.viewentity && !chase_active.value)

			continue;

#ifdef QUAKE2

		if ( ent->effects & EF_NODRAW )

			continue;

#endif

		if (cl_numvisedicts < MAX_VISEDICTS)

		{

			cl_visedicts[cl_numvisedicts] = ent;

			cl_numvisedicts++;

		}

	}

}

/*

===============

CL_ReadFromServer

Read all incoming data from the server

===============

*/

int CL_ReadFromServer (void)

{

	int		ret;

	cl.oldtime = cl.time;

	cl.time += host_frametime;

	do

	{

		ret = CL_GetMessage ();

		if (ret == -1)

			Host_Error ("CL_ReadFromServer: lost server connection");

		if (!ret)

			break;

		cl.last_received_message = realtime;

		CL_ParseServerMessage ();

	} while (ret && cls.state == ca_connected);

	if (cl_shownet.value)

		Con_Printf ("\n");

	CL_RelinkEntities ();

	CL_UpdateTEnts ();

//

// bring the links up to date

//

	return 0;

}

/*

=================

CL_SendCmd

=================

*/

void CL_SendCmd (void)

{

	usercmd_t		cmd;

	if (cls.state != ca_connected)

		return;

	if (cls.signon == SIGNONS)

	{

	// get basic movement from keyboard

		CL_BaseMove (&cmd);

	// allow mice or other external controllers to add to the move

		IN_Move (&cmd);

	// send the unreliable message

		CL_SendMove (&cmd);

	}

	if (cls.demoplayback)

	{

		SZ_Clear (&cls.message);

		return;

	}

// send the reliable message

	if (!cls.message.cursize)

		return;		// no message at all

	if (!NET_CanSendMessage (cls.netcon))

	{

		Con_DPrintf ("CL_WriteToServer: can't send\n");

		return;

	}

	if (NET_SendMessage (cls.netcon, &cls.message) == -1)

		Host_Error ("CL_WriteToServer: lost server connection");

	SZ_Clear (&cls.message);

}

/*

=================

CL_Init

=================

*/

void CL_Init (void)

{

	SZ_Alloc (&cls.message, 1024);

	CL_InitInput ();

	CL_InitTEnts ();

//

// register our commands

//

	Cvar_RegisterVariable (&cl_name);

	Cvar_RegisterVariable (&cl_color);

	Cvar_RegisterVariable (&cl_upspeed);

	Cvar_RegisterVariable (&cl_forwardspeed);

	Cvar_RegisterVariable (&cl_backspeed);

	Cvar_RegisterVariable (&cl_sidespeed);

	Cvar_RegisterVariable (&cl_movespeedkey);

	Cvar_RegisterVariable (&cl_yawspeed);

	Cvar_RegisterVariable (&cl_pitchspeed);

	Cvar_RegisterVariable (&cl_anglespeedkey);

	Cvar_RegisterVariable (&cl_shownet);

	Cvar_RegisterVariable (&cl_nolerp);

	Cvar_RegisterVariable (&lookspring);

	Cvar_RegisterVariable (&lookstrafe);

	Cvar_RegisterVariable (&sensitivity);

	Cvar_RegisterVariable (&m_pitch);

	Cvar_RegisterVariable (&m_yaw);

	Cvar_RegisterVariable (&m_forward);

	Cvar_RegisterVariable (&m_side);

//	Cvar_RegisterVariable (&cl_autofire);

	Cmd_AddCommand ("entities", CL_PrintEntities_f);

	Cmd_AddCommand ("disconnect", CL_Disconnect_f);

	Cmd_AddCommand ("record", CL_Record_f);

	Cmd_AddCommand ("stop", CL_Stop_f);

	Cmd_AddCommand ("playdemo", CL_PlayDemo_f);

	Cmd_AddCommand ("timedemo", CL_TimeDemo_f);

}