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-rw-r--r--apps/plugins/sdl/progs/quake/cl_main.c757
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 0000000..5812143
--- /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);
+}
+
generated by cgit v1.1 at 2026-05-04 16:09:17 +0000