diff options
Diffstat (limited to 'apps/plugins/sdl/progs/quake/sv_user.c')
-rw-r--r-- | apps/plugins/sdl/progs/quake/sv_user.c | 629 |
1 files changed, 629 insertions, 0 deletions
diff --git a/apps/plugins/sdl/progs/quake/sv_user.c b/apps/plugins/sdl/progs/quake/sv_user.c new file mode 100644 index 0000000000..b3082a5918 --- /dev/null +++ b/apps/plugins/sdl/progs/quake/sv_user.c @@ -0,0 +1,629 @@ +/* +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. + +*/ +// sv_user.c -- server code for moving users + +#include "quakedef.h" + +edict_t *sv_player; + +extern cvar_t sv_friction; +cvar_t sv_edgefriction = {"edgefriction", "2"}; +extern cvar_t sv_stopspeed; + +static vec3_t forward, right, up; + +vec3_t wishdir; +float wishspeed; + +// world +float *angles; +float *origin; +float *velocity; + +qboolean onground; + +usercmd_t cmd; + +cvar_t sv_idealpitchscale = {"sv_idealpitchscale","0.8"}; + + +/* +=============== +SV_SetIdealPitch +=============== +*/ +#define MAX_FORWARD 6 +void SV_SetIdealPitch (void) +{ + float angleval, sinval, cosval; + trace_t tr; + vec3_t top, bottom; + float z[MAX_FORWARD]; + int i, j; + int step, dir, steps; + + if (!((int)sv_player->v.flags & FL_ONGROUND)) + return; + + angleval = sv_player->v.angles[YAW] * M_PI*2 / 360; + sinval = sin(angleval); + cosval = cos(angleval); + + for (i=0 ; i<MAX_FORWARD ; i++) + { + top[0] = sv_player->v.origin[0] + cosval*(i+3)*12; + top[1] = sv_player->v.origin[1] + sinval*(i+3)*12; + top[2] = sv_player->v.origin[2] + sv_player->v.view_ofs[2]; + + bottom[0] = top[0]; + bottom[1] = top[1]; + bottom[2] = top[2] - 160; + + tr = SV_Move (top, vec3_origin, vec3_origin, bottom, 1, sv_player); + if (tr.allsolid) + return; // looking at a wall, leave ideal the way is was + + if (tr.fraction == 1) + return; // near a dropoff + + z[i] = top[2] + tr.fraction*(bottom[2]-top[2]); + } + + dir = 0; + steps = 0; + for (j=1 ; j<i ; j++) + { + step = z[j] - z[j-1]; + if (step > -ON_EPSILON && step < ON_EPSILON) + continue; + + if (dir && ( step-dir > ON_EPSILON || step-dir < -ON_EPSILON ) ) + return; // mixed changes + + steps++; + dir = step; + } + + if (!dir) + { + sv_player->v.idealpitch = 0; + return; + } + + if (steps < 2) + return; + sv_player->v.idealpitch = -dir * sv_idealpitchscale.value; +} + + +/* +================== +SV_UserFriction + +================== +*/ +void SV_UserFriction (void) +{ + float *vel; + float speed, newspeed, control; + vec3_t start, stop; + float friction; + trace_t trace; + + vel = velocity; + + speed = sqrt(vel[0]*vel[0] +vel[1]*vel[1]); + if (!speed) + return; + +// if the leading edge is over a dropoff, increase friction + start[0] = stop[0] = origin[0] + vel[0]/speed*16; + start[1] = stop[1] = origin[1] + vel[1]/speed*16; + start[2] = origin[2] + sv_player->v.mins[2]; + stop[2] = start[2] - 34; + + trace = SV_Move (start, vec3_origin, vec3_origin, stop, true, sv_player); + + if (trace.fraction == 1.0) + friction = sv_friction.value*sv_edgefriction.value; + else + friction = sv_friction.value; + +// apply friction + control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed; + newspeed = speed - host_frametime*control*friction; + + if (newspeed < 0) + newspeed = 0; + newspeed /= speed; + + vel[0] = vel[0] * newspeed; + vel[1] = vel[1] * newspeed; + vel[2] = vel[2] * newspeed; +} + +/* +============== +SV_Accelerate +============== +*/ +cvar_t sv_maxspeed = {"sv_maxspeed", "320", false, true}; +cvar_t sv_accelerate = {"sv_accelerate", "10"}; +#if 0 +void SV_Accelerate (vec3_t wishvel) +{ + int i; + float addspeed, accelspeed; + vec3_t pushvec; + + if (wishspeed == 0) + return; + + VectorSubtract (wishvel, velocity, pushvec); + addspeed = VectorNormalize (pushvec); + + accelspeed = sv_accelerate.value*host_frametime*addspeed; + if (accelspeed > addspeed) + accelspeed = addspeed; + + for (i=0 ; i<3 ; i++) + velocity[i] += accelspeed*pushvec[i]; +} +#endif +void SV_Accelerate (void) +{ + int i; + float addspeed, accelspeed, currentspeed; + + currentspeed = DotProduct (velocity, wishdir); + addspeed = wishspeed - currentspeed; + if (addspeed <= 0) + return; + accelspeed = sv_accelerate.value*host_frametime*wishspeed; + if (accelspeed > addspeed) + accelspeed = addspeed; + + for (i=0 ; i<3 ; i++) + velocity[i] += accelspeed*wishdir[i]; +} + +void SV_AirAccelerate (vec3_t wishveloc) +{ + int i; + float addspeed, wishspd, accelspeed, currentspeed; + + wishspd = VectorNormalize (wishveloc); + if (wishspd > 30) + wishspd = 30; + currentspeed = DotProduct (velocity, wishveloc); + addspeed = wishspd - currentspeed; + if (addspeed <= 0) + return; +// accelspeed = sv_accelerate.value * host_frametime; + accelspeed = sv_accelerate.value*wishspeed * host_frametime; + if (accelspeed > addspeed) + accelspeed = addspeed; + + for (i=0 ; i<3 ; i++) + velocity[i] += accelspeed*wishveloc[i]; +} + + +void DropPunchAngle (void) +{ + float len; + + len = VectorNormalize (sv_player->v.punchangle); + + len -= 10*host_frametime; + if (len < 0) + len = 0; + VectorScale (sv_player->v.punchangle, len, sv_player->v.punchangle); +} + +/* +=================== +SV_WaterMove + +=================== +*/ +void SV_WaterMove (void) +{ + int i; + vec3_t wishvel; + float speed, newspeed, wishspeed, addspeed, accelspeed; + +// +// user intentions +// + AngleVectors (sv_player->v.v_angle, forward, right, up); + + for (i=0 ; i<3 ; i++) + wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove; + + if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove) + wishvel[2] -= 60; // drift towards bottom + else + wishvel[2] += cmd.upmove; + + wishspeed = Length(wishvel); + if (wishspeed > sv_maxspeed.value) + { + VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel); + wishspeed = sv_maxspeed.value; + } + wishspeed *= 0.7; + +// +// water friction +// + speed = Length (velocity); + if (speed) + { + newspeed = speed - host_frametime * speed * sv_friction.value; + if (newspeed < 0) + newspeed = 0; + VectorScale (velocity, newspeed/speed, velocity); + } + else + newspeed = 0; + +// +// water acceleration +// + if (!wishspeed) + return; + + addspeed = wishspeed - newspeed; + if (addspeed <= 0) + return; + + VectorNormalizeNoRet (wishvel); + accelspeed = sv_accelerate.value * wishspeed * host_frametime; + if (accelspeed > addspeed) + accelspeed = addspeed; + + for (i=0 ; i<3 ; i++) + velocity[i] += accelspeed * wishvel[i]; +} + +void SV_WaterJump (void) +{ + if (sv.time > sv_player->v.teleport_time + || !sv_player->v.waterlevel) + { + sv_player->v.flags = (int)sv_player->v.flags & ~FL_WATERJUMP; + sv_player->v.teleport_time = 0; + } + sv_player->v.velocity[0] = sv_player->v.movedir[0]; + sv_player->v.velocity[1] = sv_player->v.movedir[1]; +} + + +/* +=================== +SV_AirMove + +=================== +*/ +void SV_AirMove (void) +{ + int i; + vec3_t wishvel; + float fmove, smove; + + AngleVectors (sv_player->v.angles, forward, right, up); + + fmove = cmd.forwardmove; + smove = cmd.sidemove; + +// hack to not let you back into teleporter + if (sv.time < sv_player->v.teleport_time && fmove < 0) + fmove = 0; + + for (i=0 ; i<3 ; i++) + wishvel[i] = forward[i]*fmove + right[i]*smove; + + if ( (int)sv_player->v.movetype != MOVETYPE_WALK) + wishvel[2] = cmd.upmove; + else + wishvel[2] = 0; + + VectorCopy (wishvel, wishdir); + wishspeed = VectorNormalize(wishdir); + if (wishspeed > sv_maxspeed.value) + { + VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel); + wishspeed = sv_maxspeed.value; + } + + if ( sv_player->v.movetype == MOVETYPE_NOCLIP) + { // noclip + VectorCopy (wishvel, velocity); + } + else if ( onground ) + { + SV_UserFriction (); + SV_Accelerate (); + } + else + { // not on ground, so little effect on velocity + SV_AirAccelerate (wishvel); + } +} + +/* +=================== +SV_ClientThink + +the move fields specify an intended velocity in pix/sec +the angle fields specify an exact angular motion in degrees +=================== +*/ +void SV_ClientThink (void) +{ + vec3_t v_angle; + + if (sv_player->v.movetype == MOVETYPE_NONE) + return; + + onground = (int)sv_player->v.flags & FL_ONGROUND; + + origin = sv_player->v.origin; + velocity = sv_player->v.velocity; + + DropPunchAngle (); + +// +// if dead, behave differently +// + if (sv_player->v.health <= 0) + return; + +// +// angles +// show 1/3 the pitch angle and all the roll angle + cmd = host_client->cmd; + angles = sv_player->v.angles; + + VectorAdd (sv_player->v.v_angle, sv_player->v.punchangle, v_angle); + angles[ROLL] = V_CalcRoll (sv_player->v.angles, sv_player->v.velocity)*4; + if (!sv_player->v.fixangle) + { + angles[PITCH] = -v_angle[PITCH]/3; + angles[YAW] = v_angle[YAW]; + } + + if ( (int)sv_player->v.flags & FL_WATERJUMP ) + { + SV_WaterJump (); + return; + } +// +// walk +// + if ( (sv_player->v.waterlevel >= 2) + && (sv_player->v.movetype != MOVETYPE_NOCLIP) ) + { + SV_WaterMove (); + return; + } + + SV_AirMove (); +} + + +/* +=================== +SV_ReadClientMove +=================== +*/ +void SV_ReadClientMove (usercmd_t *move) +{ + int i; + vec3_t angle; + int bits; + +// read ping time + host_client->ping_times[host_client->num_pings%NUM_PING_TIMES] + = sv.time - MSG_ReadFloat (); + host_client->num_pings++; + +// read current angles + for (i=0 ; i<3 ; i++) + angle[i] = MSG_ReadAngle (); + + VectorCopy (angle, host_client->edict->v.v_angle); + +// read movement + move->forwardmove = MSG_ReadShort (); + move->sidemove = MSG_ReadShort (); + move->upmove = MSG_ReadShort (); + +// read buttons + bits = MSG_ReadByte (); + host_client->edict->v.button0 = bits & 1; + host_client->edict->v.button2 = (bits & 2)>>1; + + i = MSG_ReadByte (); + if (i) + host_client->edict->v.impulse = i; + +#ifdef QUAKE2 +// read light level + host_client->edict->v.light_level = MSG_ReadByte (); +#endif +} + +/* +=================== +SV_ReadClientMessage + +Returns false if the client should be killed +=================== +*/ +qboolean SV_ReadClientMessage (void) +{ + int ret; + int cmd; + char *s; + + do + { +nextmsg: + ret = NET_GetMessage (host_client->netconnection); + if (ret == -1) + { + Sys_Printf ("SV_ReadClientMessage: NET_GetMessage failed\n"); + return false; + } + if (!ret) + return true; + + MSG_BeginReading (); + + while (1) + { + if (!host_client->active) + return false; // a command caused an error + + if (msg_badread) + { + Sys_Printf ("SV_ReadClientMessage: badread\n"); + return false; + } + + cmd = MSG_ReadChar (); + + switch (cmd) + { + case -1: + goto nextmsg; // end of message + + default: + Sys_Printf ("SV_ReadClientMessage: unknown command char\n"); + return false; + + case clc_nop: +// Sys_Printf ("clc_nop\n"); + break; + + case clc_stringcmd: + s = MSG_ReadString (); + if (host_client->privileged) + ret = 2; + else + ret = 0; + if (Q_strncasecmp(s, "status", 6) == 0) + ret = 1; + else if (Q_strncasecmp(s, "god", 3) == 0) + ret = 1; + else if (Q_strncasecmp(s, "notarget", 8) == 0) + ret = 1; + else if (Q_strncasecmp(s, "fly", 3) == 0) + ret = 1; + else if (Q_strncasecmp(s, "name", 4) == 0) + ret = 1; + else if (Q_strncasecmp(s, "noclip", 6) == 0) + ret = 1; + else if (Q_strncasecmp(s, "say", 3) == 0) + ret = 1; + else if (Q_strncasecmp(s, "say_team", 8) == 0) + ret = 1; + else if (Q_strncasecmp(s, "tell", 4) == 0) + ret = 1; + else if (Q_strncasecmp(s, "color", 5) == 0) + ret = 1; + else if (Q_strncasecmp(s, "kill", 4) == 0) + ret = 1; + else if (Q_strncasecmp(s, "pause", 5) == 0) + ret = 1; + else if (Q_strncasecmp(s, "spawn", 5) == 0) + ret = 1; + else if (Q_strncasecmp(s, "begin", 5) == 0) + ret = 1; + else if (Q_strncasecmp(s, "prespawn", 8) == 0) + ret = 1; + else if (Q_strncasecmp(s, "kick", 4) == 0) + ret = 1; + else if (Q_strncasecmp(s, "ping", 4) == 0) + ret = 1; + else if (Q_strncasecmp(s, "give", 4) == 0) + ret = 1; + else if (Q_strncasecmp(s, "ban", 3) == 0) + ret = 1; + if (ret == 2) + Cbuf_InsertText (s); + else if (ret == 1) + Cmd_ExecuteString (s, src_client); + else + Con_DPrintf("%s tried to %s\n", host_client->name, s); + break; + + case clc_disconnect: +// Sys_Printf ("SV_ReadClientMessage: client disconnected\n"); + return false; + + case clc_move: + SV_ReadClientMove (&host_client->cmd); + break; + } + } + } while (ret == 1); + + return true; +} + + +/* +================== +SV_RunClients +================== +*/ +void SV_RunClients (void) +{ + int i; + + for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++) + { + if (!host_client->active) + continue; + + sv_player = host_client->edict; + + if (!SV_ReadClientMessage ()) + { + SV_DropClient (false); // client misbehaved... + continue; + } + + if (!host_client->spawned) + { + // clear client movement until a new packet is received + memset (&host_client->cmd, 0, sizeof(host_client->cmd)); + continue; + } + +// always pause in single player if in console or menus + if (!sv.paused && (svs.maxclients > 1 || key_dest == key_game) ) + SV_ClientThink (); + } +} + |