Quake!

This ports id Software's Quake to run on the SDL plugin runtime. The
source code originated from id under the GPLv2 license. I used
https://github.com/ahefner/sdlquake as the base of my port.

Performance is, unsurprisingly, not on par with what you're probably
used to on PC. I average about 10FPS on ipod6g, but it's still
playable.

Sound works well enough, but in-game music is not supported. I've
written ARM assembly routines for the inner sound loop. Make sure you
turn the "brightness" all the way down, or colors will look funky.

To run, extract Quake's data files to /.rockbox/quake. Have fun!

Change-Id: I4285036e967d7f0722802d43cf2096c808ca5799

1 files changed, 1936 insertions, 0 deletions

diff --git a/apps/plugins/sdl/progs/quake/pr_cmds.c b/apps/plugins/sdl/progs/quake/pr_cmds.c
new file mode 100644
index 0000000000..9036afa899
--- /dev/null
+++ b/apps/plugins/sdl/progs/quake/pr_cmds.c
@@ -0,0 +1,1936 @@
+/*
+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.
+
+*/
+
+#include "quakedef.h"
+
+#define RETURN_EDICT(e) (((int *)pr_globals)[OFS_RETURN] = EDICT_TO_PROG(e))
+
+/*
+===============================================================================
+
+                                                BUILT-IN FUNCTIONS
+
+===============================================================================
+*/
+
+char *PF_VarString (int first)
+{
+        int             i;
+        static char out[256];
+        
+        out[0] = 0;
+        for (i=first ; i<pr_argc ; i++)
+        {
+                strcat (out, G_STRING((OFS_PARM0+i*3)));
+        }
+        return out;
+}
+
+
+/*
+=================
+PF_errror
+
+This is a TERMINAL error, which will kill off the entire server.
+Dumps self.
+
+error(value)
+=================
+*/
+void PF_error (void)
+{
+        char    *s;
+        edict_t *ed;
+        
+        s = PF_VarString(0);
+        Con_Printf ("======SERVER ERROR in %s:\n%s\n"
+        ,pr_strings + pr_xfunction->s_name,s);
+        ed = PROG_TO_EDICT(pr_global_struct->self);
+        ED_Print (ed);
+
+        Host_Error ("Program error");
+}
+
+/*
+=================
+PF_objerror
+
+Dumps out self, then an error message.  The program is aborted and self is
+removed, but the level can continue.
+
+objerror(value)
+=================
+*/
+void PF_objerror (void)
+{
+        char    *s;
+        edict_t *ed;
+        
+        s = PF_VarString(0);
+        Con_Printf ("======OBJECT ERROR in %s:\n%s\n"
+        ,pr_strings + pr_xfunction->s_name,s);
+        ed = PROG_TO_EDICT(pr_global_struct->self);
+        ED_Print (ed);
+        ED_Free (ed);
+        
+        Host_Error ("Program error");
+}
+
+
+
+/*
+==============
+PF_makevectors
+
+Writes new values for v_forward, v_up, and v_right based on angles
+makevectors(vector)
+==============
+*/
+void PF_makevectors (void)
+{
+        AngleVectors (G_VECTOR(OFS_PARM0), pr_global_struct->v_forward, pr_global_struct->v_right, pr_global_struct->v_up);
+}
+
+/*
+=================
+PF_setorigin
+
+This is the only valid way to move an object without using the physics of the world (setting velocity and waiting).  Directly changing origin will not set internal links correctly, so clipping would be messed up.  This should be called when an object is spawned, and then only if it is teleported.
+
+setorigin (entity, origin)
+=================
+*/
+void PF_setorigin (void)
+{
+    
+        edict_t *e;
+        float   *org;
+        
+        e = G_EDICT(OFS_PARM0);
+        org = G_VECTOR(OFS_PARM1);
+        //printf("SetOrigin %f %f %f", org[0], org[1], org[2]);
+        VectorCopy (org, e->v.origin);
+        SV_LinkEdict (e, false);
+}
+
+
+void SetMinMaxSize (edict_t *e, float *min, float *max, qboolean rotate)
+{
+        float   *angles;
+        vec3_t  rmin, rmax;
+        float   bounds[2][3];
+        float   xvector[2], yvector[2];
+        float   a;
+        vec3_t  base, transformed;
+        int             i, j, k, l;
+        
+        for (i=0 ; i<3 ; i++)
+                if (min[i] > max[i])
+                        PR_RunError ("backwards mins/maxs");
+
+        rotate = false;         // FIXME: implement rotation properly again
+
+        if (!rotate)
+        {
+                VectorCopy (min, rmin);
+                VectorCopy (max, rmax);
+        }
+        else
+        {
+        // find min / max for rotations
+                angles = e->v.angles;
+                
+                a = angles[1]/180 * M_PI;
+                
+                xvector[0] = cos(a);
+                xvector[1] = sin(a);
+                yvector[0] = -sin(a);
+                yvector[1] = cos(a);
+                
+                VectorCopy (min, bounds[0]);
+                VectorCopy (max, bounds[1]);
+                
+                rmin[0] = rmin[1] = rmin[2] = 9999;
+                rmax[0] = rmax[1] = rmax[2] = -9999;
+                
+                for (i=0 ; i<= 1 ; i++)
+                {
+                        base[0] = bounds[i][0];
+                        for (j=0 ; j<= 1 ; j++)
+                        {
+                                base[1] = bounds[j][1];
+                                for (k=0 ; k<= 1 ; k++)
+                                {
+                                        base[2] = bounds[k][2];
+                                        
+                                // transform the point
+                                        transformed[0] = xvector[0]*base[0] + yvector[0]*base[1];
+                                        transformed[1] = xvector[1]*base[0] + yvector[1]*base[1];
+                                        transformed[2] = base[2];
+                                        
+                                        for (l=0 ; l<3 ; l++)
+                                        {
+                                                if (transformed[l] < rmin[l])
+                                                        rmin[l] = transformed[l];
+                                                if (transformed[l] > rmax[l])
+                                                        rmax[l] = transformed[l];
+                                        }
+                                }
+                        }
+                }
+        }
+        
+// set derived values
+        VectorCopy (rmin, e->v.mins);
+        VectorCopy (rmax, e->v.maxs);
+        VectorSubtract (max, min, e->v.size);
+        
+        SV_LinkEdict (e, false);
+}
+
+/*
+=================
+PF_setsize
+
+the size box is rotated by the current angle
+
+setsize (entity, minvector, maxvector)
+=================
+*/
+void PF_setsize (void)
+{
+        edict_t *e;
+        float   *min, *max;
+        
+        e = G_EDICT(OFS_PARM0);
+        min = G_VECTOR(OFS_PARM1);
+        max = G_VECTOR(OFS_PARM2);
+        SetMinMaxSize (e, min, max, false);
+}
+
+
+/*
+=================
+PF_setmodel
+
+setmodel(entity, model)
+=================
+*/
+void PF_setmodel (void)
+{
+        edict_t *e;
+        char    *m, **check;
+        model_t *mod;
+        int             i;
+
+        e = G_EDICT(OFS_PARM0);
+        m = G_STRING(OFS_PARM1);
+
+// check to see if model was properly precached
+        for (i=0, check = sv.model_precache ; *check ; i++, check++)
+                if (!strcmp(*check, m))
+                        break;
+                        
+        if (!*check)
+                PR_RunError ("no precache: %s\n", m);
+                
+
+        e->v.model = m - pr_strings;
+        e->v.modelindex = i; //SV_ModelIndex (m);
+
+        mod = sv.models[ (int)e->v.modelindex];  // Mod_ForName (m, true);
+        
+        if (mod)
+                SetMinMaxSize (e, mod->mins, mod->maxs, true);
+        else
+                SetMinMaxSize (e, vec3_origin, vec3_origin, true);
+}
+
+/*
+=================
+PF_bprint
+
+broadcast print to everyone on server
+
+bprint(value)
+=================
+*/
+void PF_bprint (void)
+{
+        char            *s;
+
+        s = PF_VarString(0);
+        SV_BroadcastPrintf ("%s", s);
+}
+
+/*
+=================
+PF_sprint
+
+single print to a specific client
+
+sprint(clientent, value)
+=================
+*/
+void PF_sprint (void)
+{
+        char            *s;
+        client_t        *client;
+        int                     entnum;
+        
+        entnum = G_EDICTNUM(OFS_PARM0);
+        s = PF_VarString(1);
+        
+        if (entnum < 1 || entnum > svs.maxclients)
+        {
+                Con_Printf ("tried to sprint to a non-client\n");
+                return;
+        }
+                
+        client = &svs.clients[entnum-1];
+                
+        MSG_WriteChar (&client->message,svc_print);
+        MSG_WriteString (&client->message, s );
+}
+
+
+/*
+=================
+PF_centerprint
+
+single print to a specific client
+
+centerprint(clientent, value)
+=================
+*/
+void PF_centerprint (void)
+{
+        char            *s;
+        client_t        *client;
+        int                     entnum;
+        
+        entnum = G_EDICTNUM(OFS_PARM0);
+        s = PF_VarString(1);
+        
+        if (entnum < 1 || entnum > svs.maxclients)
+        {
+                Con_Printf ("tried to sprint to a non-client\n");
+                return;
+        }
+                
+        client = &svs.clients[entnum-1];
+                
+        MSG_WriteChar (&client->message,svc_centerprint);
+        MSG_WriteString (&client->message, s );
+}
+
+
+/*
+=================
+PF_normalize
+
+vector normalize(vector)
+=================
+*/
+void PF_normalize (void)
+{
+        float   *value1;
+        vec3_t  newvalue;
+        float   new;
+        
+        value1 = G_VECTOR(OFS_PARM0);
+
+        new = value1[0] * value1[0] + value1[1] * value1[1] + value1[2]*value1[2];
+        new = sqrt(new);
+        
+        if (new == 0)
+                newvalue[0] = newvalue[1] = newvalue[2] = 0;
+        else
+        {
+                new = 1/new;
+                newvalue[0] = value1[0] * new;
+                newvalue[1] = value1[1] * new;
+                newvalue[2] = value1[2] * new;
+        }
+        
+        VectorCopy (newvalue, G_VECTOR(OFS_RETURN));    
+}
+
+/*
+=================
+PF_vlen
+
+scalar vlen(vector)
+=================
+*/
+void PF_vlen (void)
+{
+        float   *value1;
+        float   new;
+        
+        value1 = G_VECTOR(OFS_PARM0);
+
+        new = value1[0] * value1[0] + value1[1] * value1[1] + value1[2]*value1[2];
+        new = sqrt(new);
+        
+        G_FLOAT(OFS_RETURN) = new;
+}
+
+/*
+=================
+PF_vectoyaw
+
+float vectoyaw(vector)
+=================
+*/
+void PF_vectoyaw (void)
+{
+        float   *value1;
+        float   yaw;
+        
+        value1 = G_VECTOR(OFS_PARM0);
+
+        if (value1[1] == 0 && value1[0] == 0)
+                yaw = 0;
+        else
+        {
+                yaw = (int) (atan2(value1[1], value1[0]) * 180 / M_PI);
+                if (yaw < 0)
+                        yaw += 360;
+        }
+
+        G_FLOAT(OFS_RETURN) = yaw;
+}
+
+
+/*
+=================
+PF_vectoangles
+
+vector vectoangles(vector)
+=================
+*/
+void PF_vectoangles (void)
+{
+        float   *value1;
+        float   forward;
+        float   yaw, pitch;
+        
+        value1 = G_VECTOR(OFS_PARM0);
+
+        if (value1[1] == 0 && value1[0] == 0)
+        {
+                yaw = 0;
+                if (value1[2] > 0)
+                        pitch = 90;
+                else
+                        pitch = 270;
+        }
+        else
+        {
+                yaw = (int) (atan2(value1[1], value1[0]) * 180 / M_PI);
+                if (yaw < 0)
+                        yaw += 360;
+
+                forward = sqrt (value1[0]*value1[0] + value1[1]*value1[1]);
+                pitch = (int) (atan2(value1[2], forward) * 180 / M_PI);
+                if (pitch < 0)
+                        pitch += 360;
+        }
+
+        G_FLOAT(OFS_RETURN+0) = pitch;
+        G_FLOAT(OFS_RETURN+1) = yaw;
+        G_FLOAT(OFS_RETURN+2) = 0;
+}
+
+/*
+=================
+PF_Random
+
+Returns a number from 0<= num < 1
+
+random()
+=================
+*/
+void PF_random (void)
+{
+        float           num;
+                
+        num = (rand ()&0x7fff) / ((float)0x7fff);
+        
+        G_FLOAT(OFS_RETURN) = num;
+}
+
+/*
+=================
+PF_particle
+
+particle(origin, color, count)
+=================
+*/
+void PF_particle (void)
+{
+        float           *org, *dir;
+        float           color;
+        float           count;
+                        
+        org = G_VECTOR(OFS_PARM0);
+        dir = G_VECTOR(OFS_PARM1);
+        color = G_FLOAT(OFS_PARM2);
+        count = G_FLOAT(OFS_PARM3);
+        SV_StartParticle (org, dir, color, count);
+}
+
+
+/*
+=================
+PF_ambientsound
+
+=================
+*/
+void PF_ambientsound (void)
+{
+        char            **check;
+        char            *samp;
+        float           *pos;
+        float           vol, attenuation;
+        int                     i, soundnum;
+
+        pos = G_VECTOR (OFS_PARM0);                     
+        samp = G_STRING(OFS_PARM1);
+        vol = G_FLOAT(OFS_PARM2);
+        attenuation = G_FLOAT(OFS_PARM3);
+        
+// check to see if samp was properly precached
+        for (soundnum=0, check = sv.sound_precache ; *check ; check++, soundnum++)
+                if (!strcmp(*check,samp))
+                        break;
+                        
+        if (!*check)
+        {
+                Con_Printf ("no precache: %s\n", samp);
+                return;
+        }
+
+// add an svc_spawnambient command to the level signon packet
+
+        MSG_WriteByte (&sv.signon,svc_spawnstaticsound);
+        for (i=0 ; i<3 ; i++)
+                MSG_WriteCoord(&sv.signon, pos[i]);
+
+        MSG_WriteByte (&sv.signon, soundnum);
+
+        MSG_WriteByte (&sv.signon, vol*255);
+        MSG_WriteByte (&sv.signon, attenuation*64);
+
+}
+
+/*
+=================
+PF_sound
+
+Each entity can have eight independant sound sources, like voice,
+weapon, feet, etc.
+
+Channel 0 is an auto-allocate channel, the others override anything
+allready running on that entity/channel pair.
+
+An attenuation of 0 will play full volume everywhere in the level.
+Larger attenuations will drop off.
+
+=================
+*/
+void PF_sound (void)
+{
+        char            *sample;
+        int                     channel;
+        edict_t         *entity;
+        int             volume;
+        float attenuation;
+                
+        entity = G_EDICT(OFS_PARM0);
+        channel = G_FLOAT(OFS_PARM1);
+        sample = G_STRING(OFS_PARM2);
+        volume = G_FLOAT(OFS_PARM3) * 255;
+        attenuation = G_FLOAT(OFS_PARM4);
+        
+        if (volume < 0 || volume > 255)
+                Sys_Error ("SV_StartSound: volume = %i", volume);
+
+        if (attenuation < 0 || attenuation > 4)
+                Sys_Error ("SV_StartSound: attenuation = %f", attenuation);
+
+        if (channel < 0 || channel > 7)
+                Sys_Error ("SV_StartSound: channel = %i", channel);
+
+        SV_StartSound (entity, channel, sample, volume, attenuation);
+}
+
+/*
+=================
+PF_break
+
+break()
+=================
+*/
+void PF_break (void)
+{
+Con_Printf ("break statement\n");
+*(int *)-4 = 0; // dump to debugger
+//      PR_RunError ("break statement");
+}
+
+/*
+=================
+PF_traceline
+
+Used for use tracing and shot targeting
+Traces are blocked by bbox and exact bsp entityes, and also slide box entities
+if the tryents flag is set.
+
+traceline (vector1, vector2, tryents)
+=================
+*/
+void PF_traceline (void)
+{
+        float   *v1, *v2;
+        trace_t trace;
+        int             nomonsters;
+        edict_t *ent;
+
+        v1 = G_VECTOR(OFS_PARM0);
+        v2 = G_VECTOR(OFS_PARM1);
+        nomonsters = G_FLOAT(OFS_PARM2);
+        ent = G_EDICT(OFS_PARM3);
+
+        trace = SV_Move (v1, vec3_origin, vec3_origin, v2, nomonsters, ent);
+
+        pr_global_struct->trace_allsolid = trace.allsolid;
+        pr_global_struct->trace_startsolid = trace.startsolid;
+        pr_global_struct->trace_fraction = trace.fraction;
+        pr_global_struct->trace_inwater = trace.inwater;
+        pr_global_struct->trace_inopen = trace.inopen;
+        VectorCopy (trace.endpos, pr_global_struct->trace_endpos);
+        VectorCopy (trace.plane.normal, pr_global_struct->trace_plane_normal);
+        pr_global_struct->trace_plane_dist =  trace.plane.dist; 
+        if (trace.ent)
+                pr_global_struct->trace_ent = EDICT_TO_PROG(trace.ent);
+        else
+                pr_global_struct->trace_ent = EDICT_TO_PROG(sv.edicts);
+}
+
+
+#ifdef QUAKE2
+extern trace_t SV_Trace_Toss (edict_t *ent, edict_t *ignore);
+
+void PF_TraceToss (void)
+{
+        trace_t trace;
+        edict_t *ent;
+        edict_t *ignore;
+
+        ent = G_EDICT(OFS_PARM0);
+        ignore = G_EDICT(OFS_PARM1);
+
+        trace = SV_Trace_Toss (ent, ignore);
+
+        pr_global_struct->trace_allsolid = trace.allsolid;
+        pr_global_struct->trace_startsolid = trace.startsolid;
+        pr_global_struct->trace_fraction = trace.fraction;
+        pr_global_struct->trace_inwater = trace.inwater;
+        pr_global_struct->trace_inopen = trace.inopen;
+        VectorCopy (trace.endpos, pr_global_struct->trace_endpos);
+        VectorCopy (trace.plane.normal, pr_global_struct->trace_plane_normal);
+        pr_global_struct->trace_plane_dist =  trace.plane.dist; 
+        if (trace.ent)
+                pr_global_struct->trace_ent = EDICT_TO_PROG(trace.ent);
+        else
+                pr_global_struct->trace_ent = EDICT_TO_PROG(sv.edicts);
+}
+#endif
+
+
+/*
+=================
+PF_checkpos
+
+Returns true if the given entity can move to the given position from it's
+current position by walking or rolling.
+FIXME: make work...
+scalar checkpos (entity, vector)
+=================
+*/
+void PF_checkpos (void)
+{
+}
+
+//============================================================================
+
+byte    checkpvs[MAX_MAP_LEAFS/8];
+
+int PF_newcheckclient (int check)
+{
+        int             i;
+        byte    *pvs;
+        edict_t *ent;
+        mleaf_t *leaf;
+        vec3_t  org;
+
+// cycle to the next one
+
+        if (check < 1)
+                check = 1;
+        if (check > svs.maxclients)
+                check = svs.maxclients;
+
+        if (check == svs.maxclients)
+                i = 1;
+        else
+                i = check + 1;
+
+        for ( ;  ; i++)
+        {
+                if (i == svs.maxclients+1)
+                        i = 1;
+
+                ent = EDICT_NUM(i);
+
+                if (i == check)
+                        break;  // didn't find anything else
+
+                if (ent->free)
+                        continue;
+                if (ent->v.health <= 0)
+                        continue;
+                if ((int)ent->v.flags & FL_NOTARGET)
+                        continue;
+
+        // anything that is a client, or has a client as an enemy
+                break;
+        }
+
+// get the PVS for the entity
+        VectorAdd (ent->v.origin, ent->v.view_ofs, org);
+        leaf = Mod_PointInLeaf (org, sv.worldmodel);
+        pvs = Mod_LeafPVS (leaf, sv.worldmodel);
+        memcpy (checkpvs, pvs, (sv.worldmodel->numleafs+7)>>3 );
+
+        return i;
+}
+
+/*
+=================
+PF_checkclient
+
+Returns a client (or object that has a client enemy) that would be a
+valid target.
+
+If there are more than one valid options, they are cycled each frame
+
+If (self.origin + self.viewofs) is not in the PVS of the current target,
+it is not returned at all.
+
+name checkclient ()
+=================
+*/
+#define MAX_CHECK       16
+int c_invis, c_notvis;
+void PF_checkclient (void)
+{
+        edict_t *ent, *self;
+        mleaf_t *leaf;
+        int             l;
+        vec3_t  view;
+        
+// find a new check if on a new frame
+        if (sv.time - sv.lastchecktime >= 0.1)
+        {
+                sv.lastcheck = PF_newcheckclient (sv.lastcheck);
+                sv.lastchecktime = sv.time;
+        }
+
+// return check if it might be visible  
+        ent = EDICT_NUM(sv.lastcheck);
+        if (ent->free || ent->v.health <= 0)
+        {
+                RETURN_EDICT(sv.edicts);
+                return;
+        }
+
+// if current entity can't possibly see the check entity, return 0
+        self = PROG_TO_EDICT(pr_global_struct->self);
+        VectorAdd (self->v.origin, self->v.view_ofs, view);
+        leaf = Mod_PointInLeaf (view, sv.worldmodel);
+        l = (leaf - sv.worldmodel->leafs) - 1;
+        if ( (l<0) || !(checkpvs[l>>3] & (1<<(l&7)) ) )
+        {
+c_notvis++;
+                RETURN_EDICT(sv.edicts);
+                return;
+        }
+
+// might be able to see it
+c_invis++;
+        RETURN_EDICT(ent);
+}
+
+//============================================================================
+
+
+/*
+=================
+PF_stuffcmd
+
+Sends text over to the client's execution buffer
+
+stuffcmd (clientent, value)
+=================
+*/
+void PF_stuffcmd (void)
+{
+        int             entnum;
+        char    *str;
+        client_t        *old;
+        
+        entnum = G_EDICTNUM(OFS_PARM0);
+        if (entnum < 1 || entnum > svs.maxclients)
+                PR_RunError ("Parm 0 not a client");
+        str = G_STRING(OFS_PARM1);      
+        
+        old = host_client;
+        host_client = &svs.clients[entnum-1];
+        Host_ClientCommands ("%s", str);
+        host_client = old;
+}
+
+/*
+=================
+PF_localcmd
+
+Sends text over to the client's execution buffer
+
+localcmd (string)
+=================
+*/
+void PF_localcmd (void)
+{
+        char    *str;
+        
+        str = G_STRING(OFS_PARM0);      
+        Cbuf_AddText (str);
+}
+
+/*
+=================
+PF_cvar
+
+float cvar (string)
+=================
+*/
+void PF_cvar (void)
+{
+        char    *str;
+        
+        str = G_STRING(OFS_PARM0);
+        
+        G_FLOAT(OFS_RETURN) = Cvar_VariableValue (str);
+}
+
+/*
+=================
+PF_cvar_set
+
+float cvar (string)
+=================
+*/
+void PF_cvar_set (void)
+{
+        char    *var, *val;
+        
+        var = G_STRING(OFS_PARM0);
+        val = G_STRING(OFS_PARM1);
+        
+        Cvar_Set (var, val);
+}
+
+/*
+=================
+PF_findradius
+
+Returns a chain of entities that have origins within a spherical area
+
+findradius (origin, radius)
+=================
+*/
+void PF_findradius (void)
+{
+        edict_t *ent, *chain;
+        float   rad;
+        float   *org;
+        vec3_t  eorg;
+        int             i, j;
+
+        chain = (edict_t *)sv.edicts;
+        
+        org = G_VECTOR(OFS_PARM0);
+        rad = G_FLOAT(OFS_PARM1);
+
+        ent = NEXT_EDICT(sv.edicts);
+        for (i=1 ; i<sv.num_edicts ; i++, ent = NEXT_EDICT(ent))
+        {
+                if (ent->free)
+                        continue;
+                if (ent->v.solid == SOLID_NOT)
+                        continue;
+                for (j=0 ; j<3 ; j++)
+                        eorg[j] = org[j] - (ent->v.origin[j] + (ent->v.mins[j] + ent->v.maxs[j])*0.5);                  
+                if (Length(eorg) > rad)
+                        continue;
+                        
+                ent->v.chain = EDICT_TO_PROG(chain);
+                chain = ent;
+        }
+
+        RETURN_EDICT(chain);
+}
+
+
+/*
+=========
+PF_dprint
+=========
+*/
+void PF_dprint (void)
+{
+        Con_DPrintf ("%s",PF_VarString(0));
+}
+
+char    pr_string_temp[128];
+
+void PF_ftos (void)
+{
+        float   v;
+        v = G_FLOAT(OFS_PARM0);
+        
+        if (v == (int)v)
+                sprintf (pr_string_temp, "%d",(int)v);
+        else
+                sprintf (pr_string_temp, "%5.1f",v);
+        G_INT(OFS_RETURN) = pr_string_temp - pr_strings;
+}
+
+void PF_fabs (void)
+{
+        float   v;
+        v = G_FLOAT(OFS_PARM0);
+        G_FLOAT(OFS_RETURN) = fabs(v);
+}
+
+void PF_vtos (void)
+{
+        sprintf (pr_string_temp, "'%5.1f %5.1f %5.1f'", G_VECTOR(OFS_PARM0)[0], G_VECTOR(OFS_PARM0)[1], G_VECTOR(OFS_PARM0)[2]);
+        G_INT(OFS_RETURN) = pr_string_temp - pr_strings;
+}
+
+#ifdef QUAKE2
+void PF_etos (void)
+{
+        sprintf (pr_string_temp, "entity %i", G_EDICTNUM(OFS_PARM0));
+        G_INT(OFS_RETURN) = pr_string_temp - pr_strings;
+}
+#endif
+
+void PF_Spawn (void)
+{
+        edict_t *ed;
+        ed = ED_Alloc();
+        RETURN_EDICT(ed);
+}
+
+void PF_Remove (void)
+{
+        edict_t *ed;
+        
+        ed = G_EDICT(OFS_PARM0);
+        ED_Free (ed);
+}
+
+
+// entity (entity start, .string field, string match) find = #5;
+void PF_Find (void)
+#ifdef QUAKE2
+{
+        int             e;      
+        int             f;
+        char    *s, *t;
+        edict_t *ed;
+        edict_t *first;
+        edict_t *second;
+        edict_t *last;
+
+        first = second = last = (edict_t *)sv.edicts;
+        e = G_EDICTNUM(OFS_PARM0);
+        f = G_INT(OFS_PARM1);
+        s = G_STRING(OFS_PARM2);
+        if (!s)
+                PR_RunError ("PF_Find: bad search string");
+                
+        for (e++ ; e < sv.num_edicts ; e++)
+        {
+                ed = EDICT_NUM(e);
+                if (ed->free)
+                        continue;
+                t = E_STRING(ed,f);
+                if (!t)
+                        continue;
+                if (!strcmp(t,s))
+                {
+                        if (first == (edict_t *)sv.edicts)
+                                first = ed;
+                        else if (second == (edict_t *)sv.edicts)
+                                second = ed;
+                        ed->v.chain = EDICT_TO_PROG(last);
+                        last = ed;
+                }
+        }
+
+        if (first != last)
+        {
+                if (last != second)
+                        first->v.chain = last->v.chain;
+                else
+                        first->v.chain = EDICT_TO_PROG(last);
+                last->v.chain = EDICT_TO_PROG((edict_t *)sv.edicts);
+                if (second && second != last)
+                        second->v.chain = EDICT_TO_PROG(last);
+        }
+        RETURN_EDICT(first);
+}
+#else
+{
+        int             e;      
+        int             f;
+        char    *s, *t;
+        edict_t *ed;
+
+        e = G_EDICTNUM(OFS_PARM0);
+        f = G_INT(OFS_PARM1);
+        s = G_STRING(OFS_PARM2);
+        if (!s)
+                PR_RunError ("PF_Find: bad search string");
+                
+        for (e++ ; e < sv.num_edicts ; e++)
+        {
+                ed = EDICT_NUM(e);
+                if (ed->free)
+                        continue;
+                t = E_STRING(ed,f);
+                if (!t)
+                        continue;
+                if (!strcmp(t,s))
+                {
+                        RETURN_EDICT(ed);
+                        return;
+                }
+        }
+
+        RETURN_EDICT(sv.edicts);
+}
+#endif
+
+void PR_CheckEmptyString (char *s)
+{
+        if (s[0] <= ' ')
+                PR_RunError ("Bad string");
+}
+
+void PF_precache_file (void)
+{       // precache_file is only used to copy files with qcc, it does nothing
+        G_INT(OFS_RETURN) = G_INT(OFS_PARM0);
+}
+
+void PF_precache_sound (void)
+{
+        char    *s;
+        int             i;
+        
+        if (sv.state != ss_loading)
+                PR_RunError ("PF_Precache_*: Precache can only be done in spawn functions");
+                
+        s = G_STRING(OFS_PARM0);
+        G_INT(OFS_RETURN) = G_INT(OFS_PARM0);
+        PR_CheckEmptyString (s);
+        
+        for (i=0 ; i<MAX_SOUNDS ; i++)
+        {
+                if (!sv.sound_precache[i])
+                {
+                        sv.sound_precache[i] = s;
+                        return;
+                }
+                if (!strcmp(sv.sound_precache[i], s))
+                        return;
+        }
+        PR_RunError ("PF_precache_sound: overflow");
+}
+
+void PF_precache_model (void)
+{
+        char    *s;
+        int             i;
+        
+        if (sv.state != ss_loading)
+                PR_RunError ("PF_Precache_*: Precache can only be done in spawn functions");
+                
+        s = G_STRING(OFS_PARM0);
+        G_INT(OFS_RETURN) = G_INT(OFS_PARM0);
+        PR_CheckEmptyString (s);
+
+        for (i=0 ; i<MAX_MODELS ; i++)
+        {
+                if (!sv.model_precache[i])
+                {
+                        sv.model_precache[i] = s;
+                        sv.models[i] = Mod_ForName (s, true);
+                        return;
+                }
+                if (!strcmp(sv.model_precache[i], s))
+                        return;
+        }
+        PR_RunError ("PF_precache_model: overflow");
+}
+
+
+void PF_coredump (void)
+{
+        ED_PrintEdicts ();
+}
+
+void PF_traceon (void)
+{
+        pr_trace = true;
+}
+
+void PF_traceoff (void)
+{
+        pr_trace = false;
+}
+
+void PF_eprint (void)
+{
+        ED_PrintNum (G_EDICTNUM(OFS_PARM0));
+}
+
+/*
+===============
+PF_walkmove
+
+float(float yaw, float dist) walkmove
+===============
+*/
+void PF_walkmove (void)
+{
+        edict_t *ent;
+        float   yaw, dist;
+        vec3_t  move;
+        dfunction_t     *oldf;
+        int     oldself;
+        
+        ent = PROG_TO_EDICT(pr_global_struct->self);
+        yaw = G_FLOAT(OFS_PARM0);
+        dist = G_FLOAT(OFS_PARM1);
+        
+        if ( !( (int)ent->v.flags & (FL_ONGROUND|FL_FLY|FL_SWIM) ) )
+        {
+                G_FLOAT(OFS_RETURN) = 0;
+                return;
+        }
+
+        yaw = yaw*M_PI*2 / 360;
+        
+        move[0] = cos(yaw)*dist;
+        move[1] = sin(yaw)*dist;
+        move[2] = 0;
+
+// save program state, because SV_movestep may call other progs
+        oldf = pr_xfunction;
+        oldself = pr_global_struct->self;
+        
+        G_FLOAT(OFS_RETURN) = SV_movestep(ent, move, true);
+        
+        
+// restore program state
+        pr_xfunction = oldf;
+        pr_global_struct->self = oldself;
+}
+
+/*
+===============
+PF_droptofloor
+
+void() droptofloor
+===============
+*/
+void PF_droptofloor (void)
+{
+        edict_t         *ent;
+        vec3_t          end;
+        trace_t         trace;
+        
+        ent = PROG_TO_EDICT(pr_global_struct->self);
+
+        VectorCopy (ent->v.origin, end);
+        end[2] -= 256;
+        
+        trace = SV_Move (ent->v.origin, ent->v.mins, ent->v.maxs, end, false, ent);
+
+        if (trace.fraction == 1 || trace.allsolid)
+                G_FLOAT(OFS_RETURN) = 0;
+        else
+        {
+                VectorCopy (trace.endpos, ent->v.origin);
+                SV_LinkEdict (ent, false);
+                ent->v.flags = (int)ent->v.flags | FL_ONGROUND;
+                ent->v.groundentity = EDICT_TO_PROG(trace.ent);
+                G_FLOAT(OFS_RETURN) = 1;
+        }
+}
+
+/*
+===============
+PF_lightstyle
+
+void(float style, string value) lightstyle
+===============
+*/
+void PF_lightstyle (void)
+{
+        int             style;
+        char    *val;
+        client_t        *client;
+        int                     j;
+        
+        style = G_FLOAT(OFS_PARM0);
+        val = G_STRING(OFS_PARM1);
+
+// change the string in sv
+        sv.lightstyles[style] = val;
+        
+// send message to all clients on this server
+        if (sv.state != ss_active)
+                return;
+        
+        for (j=0, client = svs.clients ; j<svs.maxclients ; j++, client++)
+                if (client->active || client->spawned)
+                {
+                        MSG_WriteChar (&client->message, svc_lightstyle);
+                        MSG_WriteChar (&client->message,style);
+                        MSG_WriteString (&client->message, val);
+                }
+}
+
+void PF_rint (void)
+{
+        float   f;
+        f = G_FLOAT(OFS_PARM0);
+        if (f > 0)
+                G_FLOAT(OFS_RETURN) = (int)(f + 0.5);
+        else
+                G_FLOAT(OFS_RETURN) = (int)(f - 0.5);
+}
+void PF_floor (void)
+{
+        G_FLOAT(OFS_RETURN) = floor(G_FLOAT(OFS_PARM0));
+}
+void PF_ceil (void)
+{
+        G_FLOAT(OFS_RETURN) = ceil(G_FLOAT(OFS_PARM0));
+}
+
+
+/*
+=============
+PF_checkbottom
+=============
+*/
+void PF_checkbottom (void)
+{
+        edict_t *ent;
+        
+        ent = G_EDICT(OFS_PARM0);
+
+        G_FLOAT(OFS_RETURN) = SV_CheckBottom (ent);
+}
+
+/*
+=============
+PF_pointcontents
+=============
+*/
+void PF_pointcontents (void)
+{
+        float   *v;
+        
+        v = G_VECTOR(OFS_PARM0);
+
+        G_FLOAT(OFS_RETURN) = SV_PointContents (v);     
+}
+
+/*
+=============
+PF_nextent
+
+entity nextent(entity)
+=============
+*/
+void PF_nextent (void)
+{
+        int             i;
+        edict_t *ent;
+        
+        i = G_EDICTNUM(OFS_PARM0);
+        while (1)
+        {
+                i++;
+                if (i == sv.num_edicts)
+                {
+                        RETURN_EDICT(sv.edicts);
+                        return;
+                }
+                ent = EDICT_NUM(i);
+                if (!ent->free)
+                {
+                        RETURN_EDICT(ent);
+                        return;
+                }
+        }
+}
+
+/*
+=============
+PF_aim
+
+Pick a vector for the player to shoot along
+vector aim(entity, missilespeed)
+=============
+*/
+cvar_t  sv_aim = {"sv_aim", "0.93"};
+void PF_aim (void)
+{
+        edict_t *ent, *check, *bestent;
+        vec3_t  start, dir, end, bestdir;
+        int             i, j;
+        trace_t tr;
+        float   dist, bestdist;
+        float   speed;
+        
+        ent = G_EDICT(OFS_PARM0);
+        speed = G_FLOAT(OFS_PARM1);
+
+        VectorCopy (ent->v.origin, start);
+        start[2] += 20;
+
+// try sending a trace straight
+        VectorCopy (pr_global_struct->v_forward, dir);
+        VectorMA (start, 2048, dir, end);
+        tr = SV_Move (start, vec3_origin, vec3_origin, end, false, ent);
+        if (tr.ent && tr.ent->v.takedamage == DAMAGE_AIM
+        && (!teamplay.value || ent->v.team <=0 || ent->v.team != tr.ent->v.team) )
+        {
+                VectorCopy (pr_global_struct->v_forward, G_VECTOR(OFS_RETURN));
+                return;
+        }
+
+
+// try all possible entities
+        VectorCopy (dir, bestdir);
+        bestdist = sv_aim.value;
+        bestent = NULL;
+        
+        check = NEXT_EDICT(sv.edicts);
+        for (i=1 ; i<sv.num_edicts ; i++, check = NEXT_EDICT(check) )
+        {
+                if (check->v.takedamage != DAMAGE_AIM)
+                        continue;
+                if (check == ent)
+                        continue;
+                if (teamplay.value && ent->v.team > 0 && ent->v.team == check->v.team)
+                        continue;       // don't aim at teammate
+                for (j=0 ; j<3 ; j++)
+                        end[j] = check->v.origin[j]
+                        + 0.5*(check->v.mins[j] + check->v.maxs[j]);
+                VectorSubtract (end, start, dir);
+                VectorNormalizeNoRet (dir);
+                dist = DotProduct (dir, pr_global_struct->v_forward);
+                if (dist < bestdist)
+                        continue;       // to far to turn
+                tr = SV_Move (start, vec3_origin, vec3_origin, end, false, ent);
+                if (tr.ent == check)
+                {       // can shoot at this one
+                        bestdist = dist;
+                        bestent = check;
+                }
+        }
+        
+        if (bestent)
+        {
+                VectorSubtract (bestent->v.origin, ent->v.origin, dir);
+                dist = DotProduct (dir, pr_global_struct->v_forward);
+                VectorScale (pr_global_struct->v_forward, dist, end);
+                end[2] = dir[2];
+                VectorNormalizeNoRet (end);
+                VectorCopy (end, G_VECTOR(OFS_RETURN)); 
+        }
+        else
+        {
+                VectorCopy (bestdir, G_VECTOR(OFS_RETURN));
+        }
+}
+
+/*
+==============
+PF_changeyaw
+
+This was a major timewaster in progs, so it was converted to C
+==============
+*/
+void PF_changeyaw (void)
+{
+        edict_t         *ent;
+        float           ideal, current, move, speed;
+        
+        ent = PROG_TO_EDICT(pr_global_struct->self);
+        current = anglemod( ent->v.angles[1] );
+        ideal = ent->v.ideal_yaw;
+        speed = ent->v.yaw_speed;
+        
+        if (current == ideal)
+                return;
+        move = ideal - current;
+        if (ideal > current)
+        {
+                if (move >= 180)
+                        move = move - 360;
+        }
+        else
+        {
+                if (move <= -180)
+                        move = move + 360;
+        }
+        if (move > 0)
+        {
+                if (move > speed)
+                        move = speed;
+        }
+        else
+        {
+                if (move < -speed)
+                        move = -speed;
+        }
+        
+        ent->v.angles[1] = anglemod (current + move);
+}
+
+#ifdef QUAKE2
+/*
+==============
+PF_changepitch
+==============
+*/
+void PF_changepitch (void)
+{
+        edict_t         *ent;
+        float           ideal, current, move, speed;
+        
+        ent = G_EDICT(OFS_PARM0);
+        current = anglemod( ent->v.angles[0] );
+        ideal = ent->v.idealpitch;
+        speed = ent->v.pitch_speed;
+        
+        if (current == ideal)
+                return;
+        move = ideal - current;
+        if (ideal > current)
+        {
+                if (move >= 180)
+                        move = move - 360;
+        }
+        else
+        {
+                if (move <= -180)
+                        move = move + 360;
+        }
+        if (move > 0)
+        {
+                if (move > speed)
+                        move = speed;
+        }
+        else
+        {
+                if (move < -speed)
+                        move = -speed;
+        }
+        
+        ent->v.angles[0] = anglemod (current + move);
+}
+#endif
+
+/*
+===============================================================================
+
+MESSAGE WRITING
+
+===============================================================================
+*/
+
+#define MSG_BROADCAST   0               // unreliable to all
+#define MSG_ONE                 1               // reliable to one (msg_entity)
+#define MSG_ALL                 2               // reliable to all
+#define MSG_INIT                3               // write to the init string
+
+sizebuf_t *WriteDest (void)
+{
+        int             entnum;
+        int             dest;
+        edict_t *ent;
+
+        dest = G_FLOAT(OFS_PARM0);
+        switch (dest)
+        {
+        case MSG_BROADCAST:
+                return &sv.datagram;
+        
+        case MSG_ONE:
+                ent = PROG_TO_EDICT(pr_global_struct->msg_entity);
+                entnum = NUM_FOR_EDICT(ent);
+                if (entnum < 1 || entnum > svs.maxclients)
+                        PR_RunError ("WriteDest: not a client");
+                return &svs.clients[entnum-1].message;
+                
+        case MSG_ALL:
+                return &sv.reliable_datagram;
+        
+        case MSG_INIT:
+                return &sv.signon;
+
+        default:
+                PR_RunError ("WriteDest: bad destination");
+                break;
+        }
+        
+        return NULL;
+}
+
+void PF_WriteByte (void)
+{
+        MSG_WriteByte (WriteDest(), G_FLOAT(OFS_PARM1));
+}
+
+void PF_WriteChar (void)
+{
+        MSG_WriteChar (WriteDest(), G_FLOAT(OFS_PARM1));
+}
+
+void PF_WriteShort (void)
+{
+        MSG_WriteShort (WriteDest(), G_FLOAT(OFS_PARM1));
+}
+
+void PF_WriteLong (void)
+{
+        MSG_WriteLong (WriteDest(), G_FLOAT(OFS_PARM1));
+}
+
+void PF_WriteAngle (void)
+{
+        MSG_WriteAngle (WriteDest(), G_FLOAT(OFS_PARM1));
+}
+
+void PF_WriteCoord (void)
+{
+        MSG_WriteCoord (WriteDest(), G_FLOAT(OFS_PARM1));
+}
+
+void PF_WriteString (void)
+{
+        MSG_WriteString (WriteDest(), G_STRING(OFS_PARM1));
+}
+
+
+void PF_WriteEntity (void)
+{
+        MSG_WriteShort (WriteDest(), G_EDICTNUM(OFS_PARM1));
+}
+
+//=============================================================================
+
+int SV_ModelIndex (char *name);
+
+void PF_makestatic (void)
+{
+        edict_t *ent;
+        int             i;
+        
+        ent = G_EDICT(OFS_PARM0);
+
+        MSG_WriteByte (&sv.signon,svc_spawnstatic);
+
+        MSG_WriteByte (&sv.signon, SV_ModelIndex(pr_strings + ent->v.model));
+
+        MSG_WriteByte (&sv.signon, ent->v.frame);
+        MSG_WriteByte (&sv.signon, ent->v.colormap);
+        MSG_WriteByte (&sv.signon, ent->v.skin);
+        for (i=0 ; i<3 ; i++)
+        {
+                MSG_WriteCoord(&sv.signon, ent->v.origin[i]);
+                MSG_WriteAngle(&sv.signon, ent->v.angles[i]);
+        }
+
+// throw the entity away now
+        ED_Free (ent);
+}
+
+//=============================================================================
+
+/*
+==============
+PF_setspawnparms
+==============
+*/
+void PF_setspawnparms (void)
+{
+        edict_t *ent;
+        int             i;
+        client_t        *client;
+
+        ent = G_EDICT(OFS_PARM0);
+        i = NUM_FOR_EDICT(ent);
+        if (i < 1 || i > svs.maxclients)
+                PR_RunError ("Entity is not a client");
+
+        // copy spawn parms out of the client_t
+        client = svs.clients + (i-1);
+
+        for (i=0 ; i< NUM_SPAWN_PARMS ; i++)
+                (&pr_global_struct->parm1)[i] = client->spawn_parms[i];
+}
+
+/*
+==============
+PF_changelevel
+==============
+*/
+void PF_changelevel (void)
+{
+#ifdef QUAKE2
+        char    *s1, *s2;
+
+        if (svs.changelevel_issued)
+                return;
+        svs.changelevel_issued = true;
+
+        s1 = G_STRING(OFS_PARM0);
+        s2 = G_STRING(OFS_PARM1);
+
+        if ((int)pr_global_struct->serverflags & (SFL_NEW_UNIT | SFL_NEW_EPISODE))
+                Cbuf_AddText (va("changelevel %s %s\n",s1, s2));
+        else
+                Cbuf_AddText (va("changelevel2 %s %s\n",s1, s2));
+#else
+        char    *s;
+
+// make sure we don't issue two changelevels
+        if (svs.changelevel_issued)
+                return;
+        svs.changelevel_issued = true;
+        
+        s = G_STRING(OFS_PARM0);
+        Cbuf_AddText (va("changelevel %s\n",s));
+#endif
+}
+
+
+#ifdef QUAKE2
+
+#define CONTENT_WATER   -3
+#define CONTENT_SLIME   -4
+#define CONTENT_LAVA    -5
+
+#define FL_IMMUNE_WATER 131072
+#define FL_IMMUNE_SLIME 262144
+#define FL_IMMUNE_LAVA  524288
+
+#define CHAN_VOICE      2
+#define CHAN_BODY       4
+
+#define ATTN_NORM       1
+
+void PF_WaterMove (void)
+{
+        edict_t         *self;
+        int                     flags;
+        int                     waterlevel;
+        int                     watertype;
+        float           drownlevel;
+        float           damage = 0.0;
+
+        self = PROG_TO_EDICT(pr_global_struct->self);
+
+        if (self->v.movetype == MOVETYPE_NOCLIP)
+        {
+                self->v.air_finished = sv.time + 12;
+                G_FLOAT(OFS_RETURN) = damage;
+                return;
+        }
+
+        if (self->v.health < 0)
+        {
+                G_FLOAT(OFS_RETURN) = damage;
+                return;
+        }
+
+        if (self->v.deadflag == DEAD_NO)
+                drownlevel = 3;
+        else
+                drownlevel = 1;
+
+        flags = (int)self->v.flags;
+        waterlevel = (int)self->v.waterlevel;
+        watertype = (int)self->v.watertype;
+
+        if (!(flags & (FL_IMMUNE_WATER + FL_GODMODE)))
+                if (((flags & FL_SWIM) && (waterlevel < drownlevel)) || (waterlevel >= drownlevel))
+                {
+                        if (self->v.air_finished < sv.time)
+                                if (self->v.pain_finished < sv.time)
+                                {
+                                        self->v.dmg = self->v.dmg + 2;
+                                        if (self->v.dmg > 15)
+                                                self->v.dmg = 10;
+//                                      T_Damage (self, world, world, self.dmg, 0, FALSE);
+                                        damage = self->v.dmg;
+                                        self->v.pain_finished = sv.time + 1.0;
+                                }
+                }
+                else
+                {
+                        if (self->v.air_finished < sv.time)
+//                              sound (self, CHAN_VOICE, "player/gasp2.wav", 1, ATTN_NORM);
+                                SV_StartSound (self, CHAN_VOICE, "player/gasp2.wav", 255, ATTN_NORM);
+                        else if (self->v.air_finished < sv.time + 9)
+//                              sound (self, CHAN_VOICE, "player/gasp1.wav", 1, ATTN_NORM);
+                                SV_StartSound (self, CHAN_VOICE, "player/gasp1.wav", 255, ATTN_NORM);
+                        self->v.air_finished = sv.time + 12.0;
+                        self->v.dmg = 2;
+                }
+        
+        if (!waterlevel)
+        {
+                if (flags & FL_INWATER)
+                {       
+                        // play leave water sound
+//                      sound (self, CHAN_BODY, "misc/outwater.wav", 1, ATTN_NORM);
+                        SV_StartSound (self, CHAN_BODY, "misc/outwater.wav", 255, ATTN_NORM);
+                        self->v.flags = (float)(flags &~FL_INWATER);
+                }
+                self->v.air_finished = sv.time + 12.0;
+                G_FLOAT(OFS_RETURN) = damage;
+                return;
+        }
+
+        if (watertype == CONTENT_LAVA)
+        {       // do damage
+                if (!(flags & (FL_IMMUNE_LAVA + FL_GODMODE)))
+                        if (self->v.dmgtime < sv.time)
+                        {
+                                if (self->v.radsuit_finished < sv.time)
+                                        self->v.dmgtime = sv.time + 0.2;
+                                else
+                                        self->v.dmgtime = sv.time + 1.0;
+//                              T_Damage (self, world, world, 10*self.waterlevel, 0, TRUE);
+                                damage = (float)(10*waterlevel);
+                        }
+        }
+        else if (watertype == CONTENT_SLIME)
+        {       // do damage
+                if (!(flags & (FL_IMMUNE_SLIME + FL_GODMODE)))
+                        if (self->v.dmgtime < sv.time && self->v.radsuit_finished < sv.time)
+                        {
+                                self->v.dmgtime = sv.time + 1.0;
+//                              T_Damage (self, world, world, 4*self.waterlevel, 0, TRUE);
+                                damage = (float)(4*waterlevel);
+                        }
+        }
+        
+        if ( !(flags & FL_INWATER) )
+        {       
+
+// player enter water sound
+                if (watertype == CONTENT_LAVA)
+//                      sound (self, CHAN_BODY, "player/inlava.wav", 1, ATTN_NORM);
+                        SV_StartSound (self, CHAN_BODY, "player/inlava.wav", 255, ATTN_NORM);
+                if (watertype == CONTENT_WATER)
+//                      sound (self, CHAN_BODY, "player/inh2o.wav", 1, ATTN_NORM);
+                        SV_StartSound (self, CHAN_BODY, "player/inh2o.wav", 255, ATTN_NORM);
+                if (watertype == CONTENT_SLIME)
+//                      sound (self, CHAN_BODY, "player/slimbrn2.wav", 1, ATTN_NORM);
+                        SV_StartSound (self, CHAN_BODY, "player/slimbrn2.wav", 255, ATTN_NORM);
+
+                self->v.flags = (float)(flags | FL_INWATER);
+                self->v.dmgtime = 0;
+        }
+        
+        if (! (flags & FL_WATERJUMP) )
+        {
+//              self.velocity = self.velocity - 0.8*self.waterlevel*frametime*self.velocity;
+                VectorMA (self->v.velocity, -0.8 * self->v.waterlevel * host_frametime, self->v.velocity, self->v.velocity);
+        }
+
+        G_FLOAT(OFS_RETURN) = damage;
+}
+
+
+void PF_sin (void)
+{
+        G_FLOAT(OFS_RETURN) = sin(G_FLOAT(OFS_PARM0));
+}
+
+void PF_cos (void)
+{
+        G_FLOAT(OFS_RETURN) = cos(G_FLOAT(OFS_PARM0));
+}
+
+void PF_sqrt (void)
+{
+        G_FLOAT(OFS_RETURN) = sqrt(G_FLOAT(OFS_PARM0));
+}
+#endif
+
+void PF_Fixme (void)
+{
+        PR_RunError ("unimplemented bulitin");
+}
+
+
+
+builtin_t pr_builtin[] =
+{
+PF_Fixme,
+PF_makevectors, // void(entity e)       makevectors             = #1;
+PF_setorigin,   // void(entity e, vector o) setorigin   = #2;
+PF_setmodel,    // void(entity e, string m) setmodel    = #3;
+PF_setsize,     // void(entity e, vector min, vector max) setsize = #4;
+PF_Fixme,       // void(entity e, vector min, vector max) setabssize = #5;
+PF_break,       // void() break                                         = #6;
+PF_random,      // float() random                                               = #7;
+PF_sound,       // void(entity e, float chan, string samp) sound = #8;
+PF_normalize,   // vector(vector v) normalize                   = #9;
+PF_error,       // void(string e) error                         = #10;
+PF_objerror,    // void(string e) objerror                              = #11;
+PF_vlen,        // float(vector v) vlen                         = #12;
+PF_vectoyaw,    // float(vector v) vectoyaw             = #13;
+PF_Spawn,       // entity() spawn                                               = #14;
+PF_Remove,      // void(entity e) remove                                = #15;
+PF_traceline,   // float(vector v1, vector v2, float tryents) traceline = #16;
+PF_checkclient, // entity() clientlist                                  = #17;
+PF_Find,        // entity(entity start, .string fld, string match) find = #18;
+PF_precache_sound,      // void(string s) precache_sound                = #19;
+PF_precache_model,      // void(string s) precache_model                = #20;
+PF_stuffcmd,    // void(entity client, string s)stuffcmd = #21;
+PF_findradius,  // entity(vector org, float rad) findradius = #22;
+PF_bprint,      // void(string s) bprint                                = #23;
+PF_sprint,      // void(entity client, string s) sprint = #24;
+PF_dprint,      // void(string s) dprint                                = #25;
+PF_ftos,        // void(string s) ftos                          = #26;
+PF_vtos,        // void(string s) vtos                          = #27;
+PF_coredump,
+PF_traceon,
+PF_traceoff,
+PF_eprint,      // void(entity e) debug print an entire entity
+PF_walkmove, // float(float yaw, float dist) walkmove
+PF_Fixme, // float(float yaw, float dist) walkmove
+PF_droptofloor,
+PF_lightstyle,
+PF_rint,
+PF_floor,
+PF_ceil,
+PF_Fixme,
+PF_checkbottom,
+PF_pointcontents,
+PF_Fixme,
+PF_fabs,
+PF_aim,
+PF_cvar,
+PF_localcmd,
+PF_nextent,
+PF_particle,
+PF_changeyaw,
+PF_Fixme,
+PF_vectoangles,
+
+PF_WriteByte,
+PF_WriteChar,
+PF_WriteShort,
+PF_WriteLong,
+PF_WriteCoord,
+PF_WriteAngle,
+PF_WriteString,
+PF_WriteEntity,
+
+#ifdef QUAKE2
+PF_sin,
+PF_cos,
+PF_sqrt,
+PF_changepitch,
+PF_TraceToss,
+PF_etos,
+PF_WaterMove,
+#else
+PF_Fixme,
+PF_Fixme,
+PF_Fixme,
+PF_Fixme,
+PF_Fixme,
+PF_Fixme,
+PF_Fixme,
+#endif
+
+SV_MoveToGoal,
+PF_precache_file,
+PF_makestatic,
+
+PF_changelevel,
+PF_Fixme,
+
+PF_cvar_set,
+PF_centerprint,
+
+PF_ambientsound,
+
+PF_precache_model,
+PF_precache_sound,              // precache_sound2 is different only for qcc
+PF_precache_file,
+
+PF_setspawnparms
+};
+
+builtin_t *pr_builtins = pr_builtin;
+int pr_numbuiltins = sizeof(pr_builtin)/sizeof(pr_builtin[0]);
+