630 lines
13 KiB
C
630 lines
13 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// sv_user.c -- server code for moving users
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#include "quakedef.h"
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edict_t *sv_player;
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extern cvar_t sv_friction;
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cvar_t sv_edgefriction = {"edgefriction", "2"};
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extern cvar_t sv_stopspeed;
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static vec3_t forward, right, up;
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vec3_t wishdir;
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float wishspeed;
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// world
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float *angles;
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float *origin;
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float *velocity;
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qboolean onground;
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usercmd_t cmd;
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cvar_t sv_idealpitchscale = {"sv_idealpitchscale","0.8"};
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/*
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===============
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SV_SetIdealPitch
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===============
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*/
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#define MAX_FORWARD 6
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void SV_SetIdealPitch (void)
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{
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float angleval, sinval, cosval;
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trace_t tr;
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vec3_t top, bottom;
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float z[MAX_FORWARD];
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int i, j;
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int step, dir, steps;
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if (!((int)sv_player->v.flags & FL_ONGROUND))
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return;
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angleval = sv_player->v.angles[YAW] * M_PI*2 / 360;
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sinval = sin(angleval);
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cosval = cos(angleval);
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for (i=0 ; i<MAX_FORWARD ; i++)
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{
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top[0] = sv_player->v.origin[0] + cosval*(i+3)*12;
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top[1] = sv_player->v.origin[1] + sinval*(i+3)*12;
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top[2] = sv_player->v.origin[2] + sv_player->v.view_ofs[2];
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bottom[0] = top[0];
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bottom[1] = top[1];
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bottom[2] = top[2] - 160;
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tr = SV_Move (top, vec3_origin, vec3_origin, bottom, 1, sv_player);
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if (tr.allsolid)
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return; // looking at a wall, leave ideal the way is was
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if (tr.fraction == 1)
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return; // near a dropoff
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z[i] = top[2] + tr.fraction*(bottom[2]-top[2]);
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}
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dir = 0;
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steps = 0;
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for (j=1 ; j<i ; j++)
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{
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step = z[j] - z[j-1];
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if (step > -ON_EPSILON && step < ON_EPSILON)
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continue;
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if (dir && ( step-dir > ON_EPSILON || step-dir < -ON_EPSILON ) )
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return; // mixed changes
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steps++;
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dir = step;
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}
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if (!dir)
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{
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sv_player->v.idealpitch = 0;
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return;
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}
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if (steps < 2)
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return;
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sv_player->v.idealpitch = -dir * sv_idealpitchscale.value;
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}
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/*
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==================
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SV_UserFriction
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==================
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*/
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void SV_UserFriction (void)
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{
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float *vel;
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float speed, newspeed, control;
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vec3_t start, stop;
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float friction;
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trace_t trace;
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vel = velocity;
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speed = sqrt(vel[0]*vel[0] +vel[1]*vel[1]);
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if (!speed)
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return;
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// if the leading edge is over a dropoff, increase friction
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start[0] = stop[0] = origin[0] + vel[0]/speed*16;
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start[1] = stop[1] = origin[1] + vel[1]/speed*16;
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start[2] = origin[2] + sv_player->v.mins[2];
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stop[2] = start[2] - 34;
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trace = SV_Move (start, vec3_origin, vec3_origin, stop, true, sv_player);
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if (trace.fraction == 1.0)
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friction = sv_friction.value*sv_edgefriction.value;
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else
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friction = sv_friction.value;
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// apply friction
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control = speed < sv_stopspeed.value ? sv_stopspeed.value : speed;
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newspeed = speed - host_frametime*control*friction;
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if (newspeed < 0)
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newspeed = 0;
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newspeed /= speed;
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vel[0] = vel[0] * newspeed;
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vel[1] = vel[1] * newspeed;
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vel[2] = vel[2] * newspeed;
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}
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/*
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==============
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SV_Accelerate
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==============
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*/
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cvar_t sv_maxspeed = {"sv_maxspeed", "320", false, true};
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cvar_t sv_accelerate = {"sv_accelerate", "10"};
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#if 0
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void SV_Accelerate (vec3_t wishvel)
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{
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int i;
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float addspeed, accelspeed;
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vec3_t pushvec;
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if (wishspeed == 0)
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return;
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VectorSubtract (wishvel, velocity, pushvec);
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addspeed = VectorNormalize (pushvec);
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accelspeed = sv_accelerate.value*host_frametime*addspeed;
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if (accelspeed > addspeed)
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accelspeed = addspeed;
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for (i=0 ; i<3 ; i++)
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velocity[i] += accelspeed*pushvec[i];
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}
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#endif
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void SV_Accelerate (void)
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{
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int i;
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float addspeed, accelspeed, currentspeed;
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currentspeed = DotProduct (velocity, wishdir);
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addspeed = wishspeed - currentspeed;
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if (addspeed <= 0)
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return;
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accelspeed = sv_accelerate.value*host_frametime*wishspeed;
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if (accelspeed > addspeed)
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accelspeed = addspeed;
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for (i=0 ; i<3 ; i++)
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velocity[i] += accelspeed*wishdir[i];
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}
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void SV_AirAccelerate (vec3_t wishveloc)
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{
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int i;
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float addspeed, wishspd, accelspeed, currentspeed;
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wishspd = VectorNormalize (wishveloc);
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if (wishspd > 30)
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wishspd = 30;
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currentspeed = DotProduct (velocity, wishveloc);
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addspeed = wishspd - currentspeed;
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if (addspeed <= 0)
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return;
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// accelspeed = sv_accelerate.value * host_frametime;
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accelspeed = sv_accelerate.value*wishspeed * host_frametime;
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if (accelspeed > addspeed)
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accelspeed = addspeed;
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for (i=0 ; i<3 ; i++)
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velocity[i] += accelspeed*wishveloc[i];
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}
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void DropPunchAngle (void)
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{
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float len;
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len = VectorNormalize (sv_player->v.punchangle);
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len -= 10*host_frametime;
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if (len < 0)
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len = 0;
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VectorScale (sv_player->v.punchangle, len, sv_player->v.punchangle);
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}
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/*
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===================
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SV_WaterMove
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===================
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*/
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void SV_WaterMove (void)
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{
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int i;
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vec3_t wishvel;
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float speed, newspeed, wishspeed, addspeed, accelspeed;
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//
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// user intentions
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//
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AngleVectors (sv_player->v.v_angle, forward, right, up);
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for (i=0 ; i<3 ; i++)
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wishvel[i] = forward[i]*cmd.forwardmove + right[i]*cmd.sidemove;
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if (!cmd.forwardmove && !cmd.sidemove && !cmd.upmove)
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wishvel[2] -= 60; // drift towards bottom
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else
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wishvel[2] += cmd.upmove;
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wishspeed = Length(wishvel);
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if (wishspeed > sv_maxspeed.value)
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{
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VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel);
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wishspeed = sv_maxspeed.value;
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}
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wishspeed *= 0.7;
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//
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// water friction
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//
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speed = Length (velocity);
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if (speed)
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{
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newspeed = speed - host_frametime * speed * sv_friction.value;
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if (newspeed < 0)
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newspeed = 0;
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VectorScale (velocity, newspeed/speed, velocity);
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}
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else
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newspeed = 0;
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//
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// water acceleration
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//
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if (!wishspeed)
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return;
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addspeed = wishspeed - newspeed;
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if (addspeed <= 0)
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return;
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VectorNormalize (wishvel);
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accelspeed = sv_accelerate.value * wishspeed * host_frametime;
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if (accelspeed > addspeed)
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accelspeed = addspeed;
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for (i=0 ; i<3 ; i++)
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velocity[i] += accelspeed * wishvel[i];
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}
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void SV_WaterJump (void)
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{
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if (sv.time > sv_player->v.teleport_time
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|| !sv_player->v.waterlevel)
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{
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sv_player->v.flags = (int)sv_player->v.flags & ~FL_WATERJUMP;
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sv_player->v.teleport_time = 0;
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}
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sv_player->v.velocity[0] = sv_player->v.movedir[0];
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sv_player->v.velocity[1] = sv_player->v.movedir[1];
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}
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/*
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===================
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SV_AirMove
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===================
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*/
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void SV_AirMove (void)
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{
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int i;
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vec3_t wishvel;
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float fmove, smove;
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AngleVectors (sv_player->v.angles, forward, right, up);
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fmove = cmd.forwardmove;
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smove = cmd.sidemove;
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// hack to not let you back into teleporter
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if (sv.time < sv_player->v.teleport_time && fmove < 0)
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fmove = 0;
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for (i=0 ; i<3 ; i++)
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wishvel[i] = forward[i]*fmove + right[i]*smove;
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if ( (int)sv_player->v.movetype != MOVETYPE_WALK)
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wishvel[2] = cmd.upmove;
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else
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wishvel[2] = 0;
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VectorCopy (wishvel, wishdir);
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wishspeed = VectorNormalize(wishdir);
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if (wishspeed > sv_maxspeed.value)
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{
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VectorScale (wishvel, sv_maxspeed.value/wishspeed, wishvel);
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wishspeed = sv_maxspeed.value;
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}
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if ( sv_player->v.movetype == MOVETYPE_NOCLIP)
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{ // noclip
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VectorCopy (wishvel, velocity);
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}
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else if ( onground )
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{
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SV_UserFriction ();
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SV_Accelerate ();
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}
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else
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{ // not on ground, so little effect on velocity
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SV_AirAccelerate (wishvel);
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}
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}
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/*
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===================
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SV_ClientThink
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the move fields specify an intended velocity in pix/sec
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the angle fields specify an exact angular motion in degrees
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===================
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*/
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void SV_ClientThink (void)
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{
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vec3_t v_angle;
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if (sv_player->v.movetype == MOVETYPE_NONE)
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return;
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onground = (int)sv_player->v.flags & FL_ONGROUND;
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origin = sv_player->v.origin;
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velocity = sv_player->v.velocity;
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DropPunchAngle ();
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//
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// if dead, behave differently
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//
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if (sv_player->v.health <= 0)
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return;
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//
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// angles
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// show 1/3 the pitch angle and all the roll angle
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cmd = host_client->cmd;
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angles = sv_player->v.angles;
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VectorAdd (sv_player->v.v_angle, sv_player->v.punchangle, v_angle);
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angles[ROLL] = V_CalcRoll (sv_player->v.angles, sv_player->v.velocity)*4;
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if (!sv_player->v.fixangle)
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{
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angles[PITCH] = -v_angle[PITCH]/3;
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angles[YAW] = v_angle[YAW];
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}
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if ( (int)sv_player->v.flags & FL_WATERJUMP )
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{
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SV_WaterJump ();
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return;
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}
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//
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// walk
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//
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if ( (sv_player->v.waterlevel >= 2)
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&& (sv_player->v.movetype != MOVETYPE_NOCLIP) )
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{
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SV_WaterMove ();
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return;
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}
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SV_AirMove ();
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}
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/*
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===================
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SV_ReadClientMove
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===================
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*/
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void SV_ReadClientMove (usercmd_t *move)
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{
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int i;
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vec3_t angle;
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int bits;
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// read ping time
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host_client->ping_times[host_client->num_pings%NUM_PING_TIMES]
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= sv.time - MSG_ReadFloat ();
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host_client->num_pings++;
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// read current angles
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for (i=0 ; i<3 ; i++)
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angle[i] = MSG_ReadAngle ();
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VectorCopy (angle, host_client->edict->v.v_angle);
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// read movement
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move->forwardmove = MSG_ReadShort ();
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move->sidemove = MSG_ReadShort ();
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move->upmove = MSG_ReadShort ();
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// read buttons
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bits = MSG_ReadByte ();
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host_client->edict->v.button0 = bits & 1;
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host_client->edict->v.button2 = (bits & 2)>>1;
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i = MSG_ReadByte ();
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if (i)
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host_client->edict->v.impulse = i;
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#ifdef QUAKE2
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// read light level
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host_client->edict->v.light_level = MSG_ReadByte ();
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#endif
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}
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/*
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===================
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SV_ReadClientMessage
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Returns false if the client should be killed
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===================
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*/
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qboolean SV_ReadClientMessage (void)
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{
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int ret;
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int cmd;
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char *s;
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do
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{
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nextmsg:
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ret = NET_GetMessage (host_client->netconnection);
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if (ret == -1)
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{
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Sys_Printf ("SV_ReadClientMessage: NET_GetMessage failed\n");
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return false;
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}
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if (!ret)
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return true;
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MSG_BeginReading ();
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while (1)
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{
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if (!host_client->active)
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return false; // a command caused an error
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if (msg_badread)
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{
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Sys_Printf ("SV_ReadClientMessage: badread\n");
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return false;
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}
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cmd = MSG_ReadChar ();
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switch (cmd)
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{
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case -1:
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goto nextmsg; // end of message
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default:
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Sys_Printf ("SV_ReadClientMessage: unknown command char\n");
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return false;
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case clc_nop:
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// Sys_Printf ("clc_nop\n");
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break;
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case clc_stringcmd:
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s = MSG_ReadString ();
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if (host_client->privileged)
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ret = 2;
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else
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ret = 0;
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if (Q_strncasecmp(s, "status", 6) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "god", 3) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "notarget", 8) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "fly", 3) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "name", 4) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "noclip", 6) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "say", 3) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "say_team", 8) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "tell", 4) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "color", 5) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "kill", 4) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "pause", 5) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "spawn", 5) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "begin", 5) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "prespawn", 8) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "kick", 4) == 0)
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ret = 1;
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else if (Q_strncasecmp(s, "ping", 4) == 0)
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|
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 ();
|
|
}
|
|
}
|
|
|