Counter Strike : Global Offensive Source Code
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//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose: Basic BOT handling.
//
// $Workfile: $
// $Date: $
//
//-----------------------------------------------------------------------------
// $Log: $
//
// $NoKeywords: $
//=============================================================================//
#include "cbase.h"
#include "cs_player.h"
#include "in_buttons.h"
#include "movehelper_server.h"
#include "team.h"
#include "cs_gamerules.h"
#include "client.h"
void Bot_Think( CCSPlayer *pBot );
ConVar bot_forcefireweapon( "bot_forcefireweapon", "", 0, "Force bots with the specified weapon to fire." );
ConVar bot_forceattack2( "bot_forceattack2", "0", 0, "When firing, use attack2." );
ConVar bot_forceattackon( "bot_forceattackon", "0", 0, "When firing, don't tap fire, hold it down." );
ConVar bot_flipout( "bot_flipout", "0", 0, "When on, all bots fire their guns." );
ConVar bot_mimic( "bot_mimic", "0", 0, "Bot uses usercmd of player by index." );
static ConVar bot_mimic_yaw_offset( "bot_mimic_yaw_offset", "0", 0, "Offsets the bot yaw." );
static int BotNumber = 1;
static int g_iNextBotTeam = -1;
typedef struct
{
bool backwards;
float nextturntime;
bool lastturntoright;
float nextstrafetime;
float sidemove;
QAngle forwardAngle;
QAngle lastAngles;
int m_WantedTeam;
float m_flJoinTeamTime;
bool m_bTempBot; // Is this slot a dump temp bot or a real bot?
} botdata_t;
static botdata_t g_BotData[ MAX_PLAYERS ];
//-----------------------------------------------------------------------------
// Purpose: Create a new Bot and put it in the game.
// Output : Pointer to the new Bot, or NULL if there's no free clients.
//-----------------------------------------------------------------------------
CBasePlayer *BotPutInServer( bool bFrozen, int iTeam )
{
g_iNextBotTeam = iTeam;
char botname[ 64 ];
Q_snprintf( botname, sizeof( botname ), "Bot%02i", BotNumber );
edict_t *pEdict = engine->CreateFakeClient( botname );
if (!pEdict)
{
Msg( "Failed to create Bot.\n");
return NULL;
}
// Allocate a CBasePlayer for the bot, and call spawn
//ClientPutInServer( pEdict, botname );
//ClientActive( pEdict, false );
CCSPlayer *pPlayer = ((CCSPlayer *)CBaseEntity::Instance( pEdict ));
pPlayer->ClearFlags();
pPlayer->AddFlag( FL_CLIENT | FL_FAKECLIENT );
if ( bFrozen )
pPlayer->AddEFlags( EFL_BOT_FROZEN );
if ( iTeam == -1 )
iTeam = ( pPlayer->entindex() & 1 ) ? TEAM_TERRORIST : TEAM_CT;
botdata_t *pData = &g_BotData[pPlayer->entindex()-1];
pData->m_WantedTeam = iTeam;
pData->m_flJoinTeamTime = gpGlobals->curtime + 0.3;
pData->m_bTempBot = true;
BotNumber++;
return pPlayer;
}
bool IsTempBot( CBaseEntity *pEnt )
{
if ( !pEnt )
return false;
if ( !(pEnt->GetFlags() & FL_FAKECLIENT) )
return false;
int i = pEnt->entindex();
if ( i >= 1 && i < MAX_PLAYERS )
return g_BotData[i-1].m_bTempBot;
else
return false;
}
//-----------------------------------------------------------------------------
// Purpose: Run through all the Bots in the game and let them think.
//-----------------------------------------------------------------------------
void Bot_RunAll( void )
{
for ( int i = 1; i <= gpGlobals->maxClients; i++ )
{
CCSPlayer *pPlayer = ToCSPlayer( UTIL_PlayerByIndex( i ) );
if ( IsTempBot( pPlayer ) )
{
Bot_Think( pPlayer );
}
}
}
bool RunMimicCommand( CUserCmd& cmd )
{
if ( bot_mimic.GetInt() <= 0 )
return false;
if ( bot_mimic.GetInt() > gpGlobals->maxClients )
return false;
CBasePlayer *pPlayer = UTIL_PlayerByIndex( bot_mimic.GetInt() );
if ( !pPlayer )
return false;
if ( !pPlayer->GetLastUserCommand() )
return false;
cmd = *pPlayer->GetLastUserCommand();
cmd.viewangles[YAW] += bot_mimic_yaw_offset.GetFloat();
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Simulates a single frame of movement for a player
// Input : *fakeclient -
// *viewangles -
// forwardmove -
// sidemove -
// upmove -
// buttons -
// impulse -
// msec -
// Output : virtual void
//-----------------------------------------------------------------------------
static void RunPlayerMove( CCSPlayer *fakeclient, const QAngle& viewangles, float forwardmove, float sidemove, float upmove, unsigned short buttons, byte impulse, float frametime )
{
if ( !fakeclient )
return;
CUserCmd cmd;
// Store off the globals.. they're gonna get whacked
float flOldFrametime = gpGlobals->frametime;
float flOldCurtime = gpGlobals->curtime;
float flTimeBase = gpGlobals->curtime;
fakeclient->SetTimeBase( flTimeBase );
Q_memset( &cmd, 0, sizeof( cmd ) );
if ( !RunMimicCommand( cmd ) )
{
VectorCopy( viewangles, cmd.viewangles );
cmd.forwardmove = forwardmove;
cmd.sidemove = sidemove;
cmd.upmove = upmove;
cmd.buttons = buttons;
cmd.impulse = impulse;
cmd.random_seed = random->RandomInt( 0, 0x7fffffff );
}
MoveHelperServer()->SetHost( fakeclient );
fakeclient->PlayerRunCommand( &cmd, MoveHelperServer() );
// save off the last good usercmd
fakeclient->SetLastUserCommand( cmd );
// Clear out any fixangle that has been set
fakeclient->pl.fixangle = FIXANGLE_NONE;
// Restore the globals..
gpGlobals->frametime = flOldFrametime;
gpGlobals->curtime = flOldCurtime;
}
//-----------------------------------------------------------------------------
// Purpose: Run this Bot's AI for one frame.
//-----------------------------------------------------------------------------
void Bot_Think( CCSPlayer *pBot )
{
// Make sure we stay being a bot
pBot->AddFlag( FL_FAKECLIENT );
botdata_t *botdata = &g_BotData[ pBot->entindex() - 1 ];
float forwardmove = 0.0;
float sidemove = botdata->sidemove;
float upmove = 0.0;
unsigned short buttons = 0;
byte impulse = 0;
float frametime = gpGlobals->frametime;
if ( pBot->GetTeamNumber() == TEAM_UNASSIGNED && gpGlobals->curtime > botdata->m_flJoinTeamTime )
{
pBot->HandleCommand_JoinTeam( botdata->m_WantedTeam );
}
else if ( pBot->GetTeamNumber() != TEAM_UNASSIGNED && pBot->PlayerClass() == CS_CLASS_NONE )
{
// If they're on a team but haven't picked a class, choose a random class..
pBot->HandleCommand_JoinClass( 0 );
}
else
{
QAngle vecViewAngles;
vecViewAngles = pBot->GetLocalAngles();
// Create some random values
if ( pBot->IsAlive() && (pBot->GetSolid() == SOLID_BBOX) )
{
trace_t trace;
// Stop when shot
if ( !pBot->IsEFlagSet(EFL_BOT_FROZEN) )
{
if ( pBot->m_iHealth == 100 )
{
forwardmove = 600 * ( botdata->backwards ? -1 : 1 );
if ( botdata->sidemove != 0.0f )
{
forwardmove *= random->RandomFloat( 0.1, 1.0f );
}
}
else
{
forwardmove = 0;
}
}
// Only turn if I haven't been hurt
if ( !pBot->IsEFlagSet(EFL_BOT_FROZEN) && pBot->m_iHealth == 100 )
{
Vector vecEnd;
Vector forward;
QAngle angle;
float angledelta = 15.0;
int maxtries = (int)360.0/angledelta;
if ( botdata->lastturntoright )
{
angledelta = -angledelta;
}
angle = pBot->GetLocalAngles();
Vector vecSrc;
while ( --maxtries >= 0 )
{
AngleVectors( angle, &forward, NULL, NULL );
vecSrc = pBot->GetLocalOrigin() + Vector( 0, 0, 36 );
vecEnd = vecSrc + forward * 10;
UTIL_TraceHull( vecSrc, vecEnd, VEC_HULL_MIN, VEC_HULL_MAX,
MASK_PLAYERSOLID, pBot, COLLISION_GROUP_NONE, &trace );
if ( trace.fraction == 1.0 )
{
//if ( gpGlobals->curtime < botdata->nextturntime )
//{
break;
//}
}
angle.y += angledelta;
if ( angle.y > 180 )
angle.y -= 360;
else if ( angle.y < -180 )
angle.y += 360;
botdata->nextturntime = gpGlobals->curtime + 2.0;
botdata->lastturntoright = random->RandomInt( 0, 1 ) == 0 ? true : false;
botdata->forwardAngle = angle;
botdata->lastAngles = angle;
}
/*
if ( gpGlobals->curtime >= botdata->nextstrafetime )
{
botdata->nextstrafetime = gpGlobals->curtime + 1.0f;
if ( random->RandomInt( 0, 5 ) == 0 )
{
botdata->sidemove = -600.0f + 1200.0f * random->RandomFloat( 0, 2 );
}
else
{
botdata->sidemove = 0;
}
sidemove = botdata->sidemove;
if ( random->RandomInt( 0, 20 ) == 0 )
{
botdata->backwards = true;
}
else
{
botdata->backwards = false;
}
}
*/
pBot->SetLocalAngles( angle );
vecViewAngles = angle;
}
// If bots are being forced to fire a weapon, see if I have it
else if ( bot_forcefireweapon.GetString() )
{
CBaseCombatWeapon *pWeapon = pBot->Weapon_OwnsThisType( bot_forcefireweapon.GetString() );
if ( pWeapon )
{
// Switch to it if we don't have it out
CBaseCombatWeapon *pActiveWeapon = pBot->GetActiveWeapon();
// Switch?
if ( pActiveWeapon != pWeapon )
{
pBot->Weapon_Switch( pWeapon );
}
else
{
// Start firing
// Some weapons require releases, so randomise firing
if ( bot_forceattackon.GetBool() || (RandomFloat(0.0,1.0) > 0.5) )
{
buttons |= bot_forceattack2.GetBool() ? IN_ATTACK2 : IN_ATTACK;
}
}
}
}
if ( bot_flipout.GetInt() )
{
if ( bot_forceattackon.GetBool() || (RandomFloat(0.0,1.0) > 0.5) )
{
buttons |= bot_forceattack2.GetBool() ? IN_ATTACK2 : IN_ATTACK;
}
}
}
else
{
// Wait for Reinforcement wave
if ( !pBot->IsAlive() )
{
// Try hitting my buttons occasionally
if ( random->RandomInt( 0, 100 ) > 80 )
{
// Respawn the bot
if ( random->RandomInt( 0, 1 ) == 0 )
{
buttons |= IN_JUMP;
}
else
{
buttons = 0;
}
}
}
}
if ( bot_flipout.GetInt() >= 2 )
{
QAngle angOffset = RandomAngle( -1, 1 );
botdata->lastAngles += angOffset;
for ( int i = 0 ; i < 2; i++ )
{
if ( fabs( botdata->lastAngles[ i ] - botdata->forwardAngle[ i ] ) > 15.0f )
{
if ( botdata->lastAngles[ i ] > botdata->forwardAngle[ i ] )
{
botdata->lastAngles[ i ] = botdata->forwardAngle[ i ] + 15;
}
else
{
botdata->lastAngles[ i ] = botdata->forwardAngle[ i ] - 15;
}
}
}
botdata->lastAngles[ 2 ] = 0;
pBot->SetLocalAngles( botdata->lastAngles );
}
}
// Fix up the m_fEffects flags
pBot->PostClientMessagesSent();
pBot->SetPunchAngle( QAngle( 0, 0, 0 ) );
RunPlayerMove( pBot, pBot->GetLocalAngles(), forwardmove, sidemove, upmove, buttons, impulse, frametime );
}
// Handler for the "bot" command.
CON_COMMAND_F( "bot_old", "Add a bot.", FCVAR_CHEAT )
{
// Disable the CS bots, otherwise they'll interfere with the bot code here.
//extern bool g_bEnableCSBots;
//g_bEnableCSBots = false;
CCSPlayer *pPlayer = CCSPlayer::Instance( UTIL_GetCommandClientIndex() );
// The bot command uses switches like command-line switches.
// -count <count> tells how many bots to spawn.
// -team <index> selects the bot's team. Default is -1 which chooses randomly.
// Note: if you do -team !, then it
// -class <index> selects the bot's class. Default is -1 which chooses randomly.
// -frozen prevents the bots from running around when they spawn in.
int count = args.FindArgInt( "-count", 1 );
count = clamp( count, 1, 16 );
int iTeam = -1;
const char *pVal = args.FindArg( "-team" );
if ( pVal )
{
if ( pVal[0] == '!' )
{
if ( pPlayer->GetTeamNumber() == TEAM_TERRORIST )
iTeam = TEAM_CT;
else
iTeam = TEAM_TERRORIST;
}
else if ( pVal[0] == 't' || pVal[0] == 'T' )
{
iTeam = TEAM_TERRORIST;
}
else if ( pVal[0] == 'c' || pVal[0] == 'C' )
{
iTeam = TEAM_CT;
}
else
{
iTeam = atoi( pVal );
if ( iTeam == 1 )
iTeam = TEAM_TERRORIST;
else
iTeam = TEAM_CT;
}
}
// Look at -frozen.
bool bFrozen = !!args.FindArg( "-frozen" );
// Ok, spawn all the bots.
while ( --count >= 0 )
{
extern CBasePlayer *BotPutInServer( bool bFrozen, int iTeam );
BotPutInServer( bFrozen, iTeam );
}
}
// Handle the "PossessBot" command.
void PossessBot_f( const CCommand &args )
{
CCSPlayer *pPlayer = CCSPlayer::Instance( UTIL_GetCommandClientIndex() );
if ( !pPlayer )
return;
// Put the local player in control of this bot.
if ( args.ArgC() != 2 )
{
Warning( "PossessBot <client index>\n" );
return;
}
int iBotClient = atoi( args[1] );
int iBotEnt = iBotClient + 1;
if ( iBotClient < 0 ||
iBotClient >= gpGlobals->maxClients ||
pPlayer->entindex() == iBotEnt )
{
Warning( "PossessBot <client index>\n" );
}
else
{
edict_t *pPlayerData = pPlayer->edict();
edict_t *pBotData = INDEXENT( iBotEnt );
if ( pBotData && pBotData )
{
// SWAP EDICTS
// Backup things we don't want to swap.
edict_t oldPlayerData = *pPlayerData;
edict_t oldBotData = *pBotData;
// Swap edicts.
edict_t tmp = *pPlayerData;
*pPlayerData = *pBotData;
*pBotData = tmp;
// Restore things we didn't want to swap.
//pPlayerData->m_EntitiesTouched = oldPlayerData.m_EntitiesTouched;
//pBotData->m_EntitiesTouched = oldBotData.m_EntitiesTouched;
CBaseEntity *pPlayerBaseEnt = CBaseEntity::Instance( pPlayerData );
CBaseEntity *pBotBaseEnt = CBaseEntity::Instance( pBotData );
// Make the other a bot and make the player not a bot.
pPlayerBaseEnt->RemoveFlag( FL_FAKECLIENT );
pBotBaseEnt->AddFlag( FL_FAKECLIENT );
// Point the CBaseEntities at the right players.
pPlayerBaseEnt->NetworkProp()->SetEdict( pPlayerData );
pBotBaseEnt->NetworkProp()->SetEdict( pBotData );
// Freeze the bot.
pBotBaseEnt->AddEFlags( EFL_BOT_FROZEN );
}
}
}
ConCommand cc_PossessBot( "PossessBot", PossessBot_f, "Toggle. Possess a bot.\n\tArguments: <bot client number>", FCVAR_CHEAT );