sv_bot.c

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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code 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.

Quake III Arena source code 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
// sv_bot.c

#include "server.h"
#include "../game/botlib.h"

typedef struct bot_debugpoly_s
{
	int inuse;
	int color;
	int numPoints;
	vec3_t points[128];
} bot_debugpoly_t;

static bot_debugpoly_t *debugpolygons;
int bot_maxdebugpolys;

extern botlib_export_t	*botlib_export;
int	bot_enable;


/*
==================
SV_BotAllocateClient
==================
*/
int SV_BotAllocateClient(void) {
	int			i;
	client_t	*cl;

	// find a client slot
	for ( i = 0, cl = svs.clients; i < sv_maxclients->integer; i++, cl++ ) {
		if ( cl->state == CS_FREE ) {
			break;
		}
	}

	if ( i == sv_maxclients->integer ) {
		return -1;
	}

	cl->gentity = SV_GentityNum( i );
	cl->gentity->s.number = i;
	cl->state = CS_ACTIVE;
	cl->lastPacketTime = svs.time;
	cl->netchan.remoteAddress.type = NA_BOT;
	cl->rate = 16384;

	return i;
}

/*
==================
SV_BotFreeClient
==================
*/
void SV_BotFreeClient( int clientNum ) {
	client_t	*cl;

	if ( clientNum < 0 || clientNum >= sv_maxclients->integer ) {
		Com_Error( ERR_DROP, "SV_BotFreeClient: bad clientNum: %i", clientNum );
	}
	cl = &svs.clients[clientNum];
	cl->state = CS_FREE;
	cl->name[0] = 0;
	if ( cl->gentity ) {
		cl->gentity->r.svFlags &= ~SVF_BOT;
	}
}

/*
==================
BotDrawDebugPolygons
==================
*/
void BotDrawDebugPolygons(void (*drawPoly)(int color, int numPoints, float *points), int value) {
	static cvar_t *bot_debug, *bot_groundonly, *bot_reachability, *bot_highlightarea;
	bot_debugpoly_t *poly;
	int i, parm0;

	if (!debugpolygons)
		return;
	//bot debugging
	if (!bot_debug) bot_debug = Cvar_Get("bot_debug", "0", 0);
	//
	if (bot_enable && bot_debug->integer) {
		//show reachabilities
		if (!bot_reachability) bot_reachability = Cvar_Get("bot_reachability", "0", 0);
		//show ground faces only
		if (!bot_groundonly) bot_groundonly = Cvar_Get("bot_groundonly", "1", 0);
		//get the hightlight area
		if (!bot_highlightarea) bot_highlightarea = Cvar_Get("bot_highlightarea", "0", 0);
		//
		parm0 = 0;
		if (svs.clients[0].lastUsercmd.buttons & BUTTON_ATTACK) parm0 |= 1;
		if (bot_reachability->integer) parm0 |= 2;
		if (bot_groundonly->integer) parm0 |= 4;
		botlib_export->BotLibVarSet("bot_highlightarea", bot_highlightarea->string);
		botlib_export->Test(parm0, NULL, svs.clients[0].gentity->r.currentOrigin, 
			svs.clients[0].gentity->r.currentAngles);
	} //end if
	//draw all debug polys
	for (i = 0; i < bot_maxdebugpolys; i++) {
		poly = &debugpolygons[i];
		if (!poly->inuse) continue;
		drawPoly(poly->color, poly->numPoints, (float *) poly->points);
		//Com_Printf("poly %i, numpoints = %d\n", i, poly->numPoints);
	}
}

/*
==================
BotImport_Print
==================
*/
void QDECL BotImport_Print(int type, char *fmt, ...)
{
	char str[2048];
	va_list ap;

	va_start(ap, fmt);
	vsprintf(str, fmt, ap);
	va_end(ap);

	switch(type) {
		case PRT_MESSAGE: {
			Com_Printf("%s", str);
			break;
		}
		case PRT_WARNING: {
			Com_Printf(S_COLOR_YELLOW "Warning: %s", str);
			break;
		}
		case PRT_ERROR: {
			Com_Printf(S_COLOR_RED "Error: %s", str);
			break;
		}
		case PRT_FATAL: {
			Com_Printf(S_COLOR_RED "Fatal: %s", str);
			break;
		}
		case PRT_EXIT: {
			Com_Error(ERR_DROP, S_COLOR_RED "Exit: %s", str);
			break;
		}
		default: {
			Com_Printf("unknown print type\n");
			break;
		}
	}
}

/*
==================
BotImport_Trace
==================
*/
void BotImport_Trace(bsp_trace_t *bsptrace, vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, int passent, int contentmask) {
	trace_t trace;

	SV_Trace(&trace, start, mins, maxs, end, passent, contentmask, qfalse);
	//copy the trace information
	bsptrace->allsolid = trace.allsolid;
	bsptrace->startsolid = trace.startsolid;
	bsptrace->fraction = trace.fraction;
	VectorCopy(trace.endpos, bsptrace->endpos);
	bsptrace->plane.dist = trace.plane.dist;
	VectorCopy(trace.plane.normal, bsptrace->plane.normal);
	bsptrace->plane.signbits = trace.plane.signbits;
	bsptrace->plane.type = trace.plane.type;
	bsptrace->surface.value = trace.surfaceFlags;
	bsptrace->ent = trace.entityNum;
	bsptrace->exp_dist = 0;
	bsptrace->sidenum = 0;
	bsptrace->contents = 0;
}

/*
==================
BotImport_EntityTrace
==================
*/
void BotImport_EntityTrace(bsp_trace_t *bsptrace, vec3_t start, vec3_t mins, vec3_t maxs, vec3_t end, int entnum, int contentmask) {
	trace_t trace;

	SV_ClipToEntity(&trace, start, mins, maxs, end, entnum, contentmask, qfalse);
	//copy the trace information
	bsptrace->allsolid = trace.allsolid;
	bsptrace->startsolid = trace.startsolid;
	bsptrace->fraction = trace.fraction;
	VectorCopy(trace.endpos, bsptrace->endpos);
	bsptrace->plane.dist = trace.plane.dist;
	VectorCopy(trace.plane.normal, bsptrace->plane.normal);
	bsptrace->plane.signbits = trace.plane.signbits;
	bsptrace->plane.type = trace.plane.type;
	bsptrace->surface.value = trace.surfaceFlags;
	bsptrace->ent = trace.entityNum;
	bsptrace->exp_dist = 0;
	bsptrace->sidenum = 0;
	bsptrace->contents = 0;
}


/*
==================
BotImport_PointContents
==================
*/
int BotImport_PointContents(vec3_t point) {
	return SV_PointContents(point, -1);
}

/*
==================
BotImport_inPVS
==================
*/
int BotImport_inPVS(vec3_t p1, vec3_t p2) {
	return SV_inPVS (p1, p2);
}

/*
==================
BotImport_BSPEntityData
==================
*/
char *BotImport_BSPEntityData(void) {
	return CM_EntityString();
}

/*
==================
BotImport_BSPModelMinsMaxsOrigin
==================
*/
void BotImport_BSPModelMinsMaxsOrigin(int modelnum, vec3_t angles, vec3_t outmins, vec3_t outmaxs, vec3_t origin) {
	clipHandle_t h;
	vec3_t mins, maxs;
	float max;
	int	i;

	h = CM_InlineModel(modelnum);
	CM_ModelBounds(h, mins, maxs);
	//if the model is rotated
	if ((angles[0] || angles[1] || angles[2])) {
		// expand for rotation

		max = RadiusFromBounds(mins, maxs);
		for (i = 0; i < 3; i++) {
			mins[i] = -max;
			maxs[i] = max;
		}
	}
	if (outmins) VectorCopy(mins, outmins);
	if (outmaxs) VectorCopy(maxs, outmaxs);
	if (origin) VectorClear(origin);
}

/*
==================
BotImport_GetMemory
==================
*/
void *BotImport_GetMemory(int size) {
	void *ptr;

	ptr = Z_TagMalloc( size, TAG_BOTLIB );
	return ptr;
}

/*
==================
BotImport_FreeMemory
==================
*/
void BotImport_FreeMemory(void *ptr) {
	Z_Free(ptr);
}

/*
=================
BotImport_HunkAlloc
=================
*/
void *BotImport_HunkAlloc( int size ) {
	if( Hunk_CheckMark() ) {
		Com_Error( ERR_DROP, "SV_Bot_HunkAlloc: Alloc with marks already set\n" );
	}
	return Hunk_Alloc( size, h_high );
}

/*
==================
BotImport_DebugPolygonCreate
==================
*/
int BotImport_DebugPolygonCreate(int color, int numPoints, vec3_t *points) {
	bot_debugpoly_t *poly;