1 files changed, 757 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/quake/cl_main.c b/apps/plugins/sdl/progs/quake/cl_main.c
new file mode 100644
index 0000000000..58121434bc
--- /dev/null
+++ b/apps/plugins/sdl/progs/quake/cl_main.c
@@ -0,0 +1,757 @@
+/*
+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<MAX_EFRAGS-1 ; 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<cl.num_entities ; i++,ent++)
+        {
+                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<MAX_DLIGHTS ; i++, dl++)
+                {
+                        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<MAX_DLIGHTS ; i++, dl++)
+        {
+                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<MAX_DLIGHTS ; i++, dl++)
+        {
+                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<cl.num_entities ; i++,ent++)
+        {
+                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);
+}
+