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bot.cpp
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bot.cpp
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/**
* RealBot : Artificial Intelligence
* Version : Work In Progress
* Author : Stefan Hendriks
* Url : http://realbot.bots-united.com
**
* DISCLAIMER
*
* History, Information & Credits:
* RealBot is based partially upon the HPB-Bot Template #3 by Botman
* Thanks to Ditlew (NNBot), Pierre Marie Baty (RACCBOT), Tub (RB AI PR1/2/3)
* Greg Slocum & Shivan (RB V1.0), Botman (HPB-Bot) and Aspirin (JOEBOT). And
* everybody else who helped me with this project.
* Storage of Visibility Table using BITS by Cheesemonster.
*
* Some portions of code are from other bots, special thanks (and credits) go
* to (in no specific order):
*
* Pierre Marie Baty
* Count - Floyd
*
* !! BOTS-UNITED FOREVER !!
*
* This project is open-source, it is protected under the GPL license;
* By using this source-code you agree that you will ALWAYS release the
* source-code with your project.
*
**/
/*
//=========================================================
// Returns if enemy can be shoot through some obstacle
//=========================================================
bool CBaseBot::IsShootableThruObstacle(Vector vecDest)
{
if (!WeaponShootsThru(m_iCurrentWeapon))
return FALSE;
Vector vecSrc = EyePosition();
Vector vecDir = (vecDest - vecSrc).Normalize(); // 1 unit long
Vector vecPoint = g_vecZero;
int iThickness = 0;
int iHits = 0;
edict_t *pentIgnore = pev->pContainingEntity;
TraceResult tr;
UTIL_TraceLine(vecSrc, vecDest, ignore_monsters, ignore_glass, pentIgnore, &tr);
while (tr.flFraction != 1.0 && iHits < 3)
{
iHits++;
iThickness++;
vecPoint = tr.vecEndPos + vecDir;
while (POINT_CONTENTS(vecPoint) == CONTENTS_SOLID && iThickness < 64)
{
vecPoint = vecPoint + vecDir;
iThickness++;
}
UTIL_TraceLine(vecPoint, vecDest, ignore_monsters, ignore_glass, pentIgnore, &tr);
}
if (iHits < 3 && iThickness < 64)
{
if (LengthSquared(vecDest - vecPoint) < 12544)
return TRUE;
}
return FALSE;
}
*/
#include <string.h>
#include <extdll.h>
#include <dllapi.h>
#include <meta_api.h>
#include <entity_state.h>
#include "bot.h"
#include "bot_weapons.h"
#include "bot_func.h"
#include "game.h"
#include "NodeMachine.h"
#include "ChatEngine.h"
#include <sys/types.h>
#include <sys/stat.h>
extern edict_t *pHostEdict;
extern int mod_id;
extern bool internet_play;
extern cGame Game;
extern cNodeMachine NodeMachine;
extern cChatEngine ChatEngine;
extern int counterstrike;
//static FILE *fp;
extern bool autoskill;
/* Radio issue
Credit by Ditlew (NNBOT - Rest In Peace) */
bool radio_message = false;
char *message = (char *) malloc(64 * sizeof(char));
char radio_messenger[30];
// random boundries
extern int random_max_skill;
extern int random_min_skill;
cBot bots[32]; // max of 32 bots in a game
// External added variables
extern bool end_round; // End round
#ifndef _WIN32
#define _snprintf snprintf
#endif
cBot::cBot() {
pBotHostage = NULL;
fMoveToNodeTime = -1;
clearHostages();
}
/******************************************************************************
Function purpose: Initializes bot vars on spawn
******************************************************************************/
void cBot::SpawnInit() {
rprint_trace("SpawnInit()", "START");
// ------------------------
// TIMERS
// ------------------------
fUpdateTime = gpGlobals->time;
fLastRunPlayerMoveTime = gpGlobals->time - 0.1f;
fButtonTime = gpGlobals->time;
fChatTime = gpGlobals->time + RANDOM_FLOAT(0.5, 5);
fMemoryTime = gpGlobals->time;
fDoRadio = gpGlobals->time;
float freezeTimeCVAR = CVAR_GET_FLOAT("mp_freezetime");
fNotStuckTime = gpGlobals->time + freezeTimeCVAR + 0.5f;
f_shoot_wait_time = gpGlobals->time;
f_goback_time = gpGlobals->time;
f_may_jump_time = gpGlobals->time;
fCheckHostageStatusTimer = gpGlobals->time;
f_defuse = gpGlobals->time;
f_allow_keypress = gpGlobals->time;
f_use_timer = gpGlobals->time;
f_light_time = gpGlobals->time;
f_sec_weapon = gpGlobals->time;
f_prim_weapon = gpGlobals->time;
f_gren_time = gpGlobals->time;
f_walk_time = gpGlobals->time;
f_hear_time = gpGlobals->time;
freezeTime = gpGlobals->time - 1;
f_cover_time = gpGlobals->time;
f_c4_time = gpGlobals->time;
f_update_weapon_time = gpGlobals->time;
f_follow_time = gpGlobals->time;
f_jump_time = 0.0;
f_hold_duck = gpGlobals->time;
f_camp_time = gpGlobals->time;
f_wait_time = gpGlobals->time;
f_bot_see_enemy_time = gpGlobals->time;
f_bot_find_enemy_time = gpGlobals->time;
f_shoot_time = gpGlobals->time;
fMoveToNodeTime = -1;
nodeTimeIncreasedAmount = 0;
distanceMovedTimer = gpGlobals->time;
distanceMoved = 0;
fBlindedTime = gpGlobals->time;
f_console_timer = gpGlobals->time + RANDOM_FLOAT(0.1, 0.9);
fWanderTime = gpGlobals->time;
f_strafe_time = gpGlobals->time;
// Personality Related (these gets changed when loading personality file)
fpXOffset = 0.0;
fpYOffset = 0.0;
fpZOffset = 0.0;
fpMinReactTime = 0.0;
fpMaxReactTime = 0.0;
// ------------------------
// POINTERS
// ------------------------
pButtonEdict = NULL;
pBotHostage = NULL;
clearHostages();
pEnemyEdict = NULL;
// chat
memset(chChatSentence, 0, sizeof(chChatSentence));
// ------------------------
// INTEGERS
// ------------------------
iGoalNode = -1;
goalIndex = -1;
iPreviousGoalNode = -1;
iCloseNode = -1;
iDiedNode = -1;
iTeam = -1;
bot_class = -1;
i_camp_style = 0;
iPrimaryWeapon = -1;
iSecondaryWeapon = -1;
zoomed = ZOOM_NONE;
play_rounds = RANDOM_LONG(Game.GetMinPlayRounds(), Game.GetMaxPlayRounds());
bot_health = 0;
prev_health = 0;
bot_armor = 0;
bot_weapons = 0;
bot_use_special = 0 + RANDOM_LONG(0, 2);
console_nr = 0;
pathIndex = -1;
iPathFlags = PATH_DANGER;
// Smarter Stuck stuff
iDuckTries = 0;
iJumpTries = 0;
// ------------------------
// BOOLEANS
// ------------------------
vip = UTIL_IsVip(pEdict);
bWalkKnife = false;
buy_ammo_primary = true;
buy_ammo_secondary = true;
buy_primary = (Game.bPistols ? false : true); //30/07/04: Josh, handle the pistols only mode
buy_secondary = (Game.bPistols ? true : false);
buy_armor = false;
buy_defusekit = false;
bFirstOutOfSight = false;
buy_grenade = false;
buy_smokegrenade = false;
buy_flashbang = 0;
if (RANDOM_LONG(0, 100) < ipWalkWithKnife) {
bWalkKnife = true;
}
if (UTIL_GetTeam(pEdict) == 1) {
if (RANDOM_LONG(0, 100) < ipBuyDefuseKit) {
buy_defusekit = true;
}
}
if (RANDOM_LONG(0, 100) < ipBuyGrenade) {
buy_grenade = true;
}
// 31.08.04 Frashman added Support for Smoke Grenade
if (RANDOM_LONG(0, 100) < ipBuySmokeGren) {
buy_smokegrenade = true;
}
if (RANDOM_LONG(0, 100) < ipBuyFlashBang) {
buy_flashbang = 2;
}
if (RANDOM_LONG(0, 100) < 15 || Game.bPistols)
buy_secondary = true;
// ------------------------
// HUD
// ------------------------
bHUD_C4_plantable = false; // Get's init'ed anyway... // BERKED
// ------------------------
// FLOATS
// ------------------------
f_strafe_speed = 0.0;
f_max_speed = CVAR_GET_FLOAT("sv_maxspeed");
// ------------------------
// VECTORS
// ------------------------
prevOrigin = Vector(9999.0, 9999.0, 9999.0);
lastSeenEnemyVector = Vector(0, 0, 0);
vEar = Vector(9999, 9999, 9999);
// ------------------------
// CHAR
// ------------------------
arg1[0] = 0;
arg2[0] = 0;
arg3[0] = 0;
memset(&(current_weapon), 0, sizeof(current_weapon));
memset(&(m_rgAmmo), 0, sizeof(m_rgAmmo));
rprint_trace("SpawnInit()", "END");
}
/******************************************************************************
Function purpose: Initializes bot vars on new round
******************************************************************************/
void cBot::NewRound() {
rprint_trace("NewRound()", "START");
// ------------------------
// TIMERS
// ------------------------
fUpdateTime = gpGlobals->time;
fLastRunPlayerMoveTime = gpGlobals->time;
fCheckHostageStatusTimer = gpGlobals->time;
fButtonTime = gpGlobals->time;
fChatTime = gpGlobals->time + RANDOM_FLOAT(0.5, 5);
fMemoryTime = gpGlobals->time;
fDoRadio = gpGlobals->time;
float freezeTimeCVAR = CVAR_GET_FLOAT("mp_freezetime");
fNotStuckTime = gpGlobals->time + freezeTimeCVAR + 0.5f;
f_shoot_wait_time = gpGlobals->time;
f_goback_time = gpGlobals->time;
f_may_jump_time = gpGlobals->time;
f_defuse = gpGlobals->time;
f_allow_keypress = gpGlobals->time;
f_use_timer = gpGlobals->time;
f_light_time = gpGlobals->time;
f_sec_weapon = gpGlobals->time;
f_prim_weapon = gpGlobals->time;
f_gren_time = gpGlobals->time;
f_walk_time = gpGlobals->time;
f_hear_time = gpGlobals->time;
freezeTime = gpGlobals->time - 1;
f_cover_time = gpGlobals->time;
f_c4_time = gpGlobals->time;
f_update_weapon_time = gpGlobals->time;
f_follow_time = gpGlobals->time;
f_jump_time = 0.0;
f_hold_duck = gpGlobals->time - 1;
f_camp_time = gpGlobals->time;
f_wait_time = gpGlobals->time;
f_bot_see_enemy_time = gpGlobals->time;
f_bot_find_enemy_time = gpGlobals->time;
f_shoot_time = gpGlobals->time;
fMoveToNodeTime = -1;
nodeTimeIncreasedAmount = 0;
distanceMovedTimer = gpGlobals->time;
distanceMoved = 0;
fBlindedTime = gpGlobals->time;
f_console_timer = gpGlobals->time + RANDOM_FLOAT(0.1, 0.9);
fWanderTime = gpGlobals->time;
f_strafe_time = gpGlobals->time;
// ------------------------
// POINTERS
// ------------------------
pButtonEdict = NULL;
pBotHostage = NULL;
clearHostages();
pEnemyEdict = NULL;
// ------------------------
// INTEGERS
// ------------------------
i_camp_style = 0;
iPrimaryWeapon = -1;
iSecondaryWeapon = -1;
zoomed = ZOOM_NONE;
bot_health = 0;
prev_health = 0;
bot_armor = 0;
// bot_weapons = 0; // <- stefan: prevent from buying new stuff every round!
console_nr = 0;
pathIndex = -1;
iGoalNode = -1;
goalIndex = -1;
iPreviousGoalNode = -1;
iCloseNode = -1;
// Smarter Stuck stuff
iDuckTries = 0;
iJumpTries = 0;
if (RANDOM_LONG(0, 100) < ipFearRate)
iPathFlags = PATH_DANGER;
else
iPathFlags = PATH_NONE;
// ------------------------
// BOOLEANS
// ------------------------
// chat
memset(chChatSentence, 0, sizeof(chChatSentence));
vip = UTIL_IsVip(pEdict);
// Every round consider
bWalkKnife = false;
if (RANDOM_LONG(0, 100) < ipWalkWithKnife)
bWalkKnife = true;
// Buying
buy_ammo_primary = true;
buy_ammo_secondary = true;
buy_primary = (Game.bPistols ? false : true);
buy_grenade = false;
buy_smokegrenade = false;
buy_flashbang = 0;
buy_secondary = (Game.bPistols ? true : false);
buy_armor = false;
buy_defusekit = false;
if (UTIL_GetTeam(pEdict) == 1)
if (RANDOM_LONG(0, 100) < ipBuyDefuseKit)
buy_defusekit = true;
if (RANDOM_LONG(0, 100) < ipBuyArmour)
buy_armor = true;
if (RANDOM_LONG(0, 100) < ipBuyGrenade)
buy_grenade = true;
if (RANDOM_LONG(0, 100) < ipBuySmokeGren)
buy_smokegrenade = true;
if (RANDOM_LONG(0, 100) < ipBuyFlashBang)
buy_flashbang = 2;
bFirstOutOfSight = false;
f_strafe_speed = 0.0;
// ------------------------
// VECTORS
// ------------------------
prevOrigin = Vector(9999.0, 9999.0, 9999.0);
lastSeenEnemyVector = Vector(0, 0, 0);
vEar = Vector(9999, 9999, 9999);
// ------------------------
// CHAR
// ------------------------
arg1[0] = 0;
arg2[0] = 0;
arg3[0] = 0;
// initalize a few other stuff
NodeMachine.path_clear(iBotIndex);
iPathFlags = PATH_NONE;
played_rounds++;
// hello dudes
if (played_rounds == 1) {
// do some chatting
if (RANDOM_LONG(0, 100) < (ipChatRate + 10)) {
// we should say something now?
int iMax = -1;
for (int tc = 0; tc < 50; tc++) {
if (ChatEngine.ReplyBlock[98].sentence[tc][0] != '\0')
iMax++;
}
int the_c = RANDOM_LONG(0, iMax);
if (the_c > -1 && iMax > -1) {
char chSentence[80];
memset(chSentence, 0, sizeof(chSentence));
sprintf(chSentence, "%s ",
ChatEngine.ReplyBlock[98].sentence[the_c]);
PrepareChat(chSentence);
}
}
}
clearHostages();
clearHostageToRescueTarget();
rprint("NewRound", "Initialization new round finished");
}
/******************************************************************************
Function purpose: Returns a random chat sentence and stores it into 'sentence'
******************************************************************************/
void cBot::PrepareChat(char sentence[128]) {
if (Game.iProducedSentences <= Game.iMaxSentences) {
// makes bot chat away
fChatTime = gpGlobals->time + RANDOM_FLOAT(0.1, 2.0);
strcpy(chChatSentence, sentence); // copy this
Game.iProducedSentences++;
}
}
/******************************************************************************
Function purpose: Return reaction time based upon skill
******************************************************************************/
float cBot::ReactionTime(int iSkill) {
float time = RANDOM_FLOAT(fpMinReactTime, fpMaxReactTime);
if (Game.messageVerbosity > 1) {
char msg[255];
sprintf(msg, "minReactTime %f, maxReactTime %f, skill %d, results into %f", fpMinReactTime, fpMaxReactTime, iSkill, time);
rprint_trace("ReactionTime()", msg);
}
return time;
}
/******************************************************************************
Function purpose: Finds a (new) enemy
******************************************************************************/
int cBot::FindEnemy() {
// When on ladder, do not search for enemies
if (isOnLadder())
return -1;
// When blinded we cannot search for enemies
if (fBlindedTime > gpGlobals->time)
return -1;
float fNearestDistance = 9999; // Nearest distance
edict_t *pNewEnemy = NULL; // New enemy found
// SEARCH PLAYERS FOR ENEMIES
for (int i = 1; i <= gpGlobals->maxClients; i++) {
edict_t *pPlayer = INDEXENT(i);
// skip invalid players and skip self (i.e. this bot)
if ((pPlayer) && (!pPlayer->free) && (pPlayer != pEdict)) {
// skip this player if not alive (i.e. dead or dying)
if (!IsAlive(pPlayer))
continue;
Vector vVecEnd = pPlayer->v.origin + pPlayer->v.view_ofs;
// if bot can see the player...
if (FInViewCone(&vVecEnd, pEdict) && FVisible(vVecEnd, pEdict)) {
int player_team = UTIL_GetTeam(pPlayer);
int bot_team = UTIL_GetTeam(pEdict);
if (player_team == bot_team)
continue; // do not target teammates
// Its not a friend, track enemy
float fDistance =
(pPlayer->v.origin - pEdict->v.origin).Length();
bool bCanSee = true;
// The further away, the less chance we see this enemy
//if (RANDOM_FLOAT(0,1.0) < (fDistance/4096))
// bCanSee=false;
if (CarryWeaponType() == SNIPER)
bCanSee = true;
if (fDistance < fNearestDistance && bCanSee) {
fNearestDistance = fDistance;
pNewEnemy = pPlayer;
}
continue;
}
} // valid player
} // FOR
// We found a new enemy & the new enemy is different then previous pointer
if (pNewEnemy && pNewEnemy != pEnemyEdict) {
int iCurrentNode = determineCurrentNode();
// Add 'contact' data
if (iCurrentNode > -1) {
NodeMachine.contact(iCurrentNode, UTIL_GetTeam(pEdict));
}
// We have a reaction time to this new enemy
rememberEnemyFound();
f_shoot_time = gpGlobals->time + ReactionTime(bot_skill);
pEnemyEdict = pNewEnemy; // Update pointer
// We did not have an enemy before
if (pEnemyEdict == NULL) {
rprint_trace("FindEnemy()", "Found new enemy");
// RADIO: When we found a NEW enemy but NOT via a friend
if (FUNC_DoRadio(this)) {
UTIL_BotRadioMessage(this, 3, "2", "");
}
// We found a new enemy
return 0;
} else {
// we found an enemy that is newer/more dangerous then previous
rprint_trace("FindEnemy()", "Found 'newer' enemy");
return 3;
}
}
// nothing found
return -1; // return result
}
void cBot::rememberEnemyFound() {
f_bot_find_enemy_time = gpGlobals->time + REMEMBER_ENEMY_TIME;
}
/******************************************************************************
Function purpose: Sets vHead to aim at vector
******************************************************************************/
void cBot::setHeadAiming(Vector vTarget) {
vHead = vTarget;
}
/**
* Returns true / false wether enemy is alive.
* @return
*/
bool cBot::isEnemyAlive() {
return IsAlive(pEnemyEdict);
}
bool cBot::isSeeingEnemy() {
if (!hasEnemy()) {
this->rprint("canSeeEnemy called without having enemy?");
return false;
}
if (isBlindedByFlashbang()) {
return false;
}
Vector vBody = pEnemyEdict->v.origin;
Vector vHead = pEnemyEdict->v.origin + pEnemyEdict->v.view_ofs;
bool bodyInFOV = FInViewCone(&vBody, pEdict) && FVisible(vBody, pEdict);
bool headInFOV = FInViewCone(&vHead, pEdict) && FVisible(vHead, pEdict);
if (bodyInFOV || headInFOV) {
return true;
}
return false;
}
/******************************************************************************
Function purpose: Aims at enemy, only when valid. Based upon skill how it 'aims'
******************************************************************************/
void cBot::AimAtEnemy() {
if (!hasEnemy())
return;
// We cannot see our enemy? -> bail out
if (isSeeingEnemy()) {
setHeadAiming(lastSeenEnemyVector); // look at last known vector of enemy
return;
}
// ------------------------ we can see enemy -------------------------
float fDistance;
// Distance to enemy
fDistance = (pEnemyEdict->v.origin - pEdict->v.origin).Length() + 1; // +1 to make sure we never divide by zero
// factor in distance, the further away the more deviation - which is based on skill
int skillReversed = (10 - bot_skill) + 1;
float fScale = 0.5 + (fDistance / (64 *
skillReversed)); // a good skilled bot is less impacted by distance than a bad skilled bot
if (CarryWeaponType() == SNIPER) fScale *= 0.80; // sniping improves aiming
// Set target here
Vector vTarget;
if (bot_skill <= 1)
vTarget = pEnemyEdict->v.origin + pEnemyEdict->v.view_ofs * RANDOM_FLOAT(-0.5, 1.1); // aim for the head
else if (bot_skill > 1 && bot_skill < 4)
vTarget = pEnemyEdict->v.origin +
pEnemyEdict->v.view_ofs * RANDOM_FLOAT(-2.5, 2.5); // aim for the head more fuzzy
else
vTarget = pEnemyEdict->v.origin; // aim for body
// Based upon how far, we make this fuzzy
float fDx, fDy, fDz;
fDx = fDy = fDz = ((bot_skill + 1) * fScale);
// Example 1:
// Super skilled bot (bot_skill 1), with enemy of 2048 units away. Results into:
// skillReversed = (10 - 0 + 1) == 11
// fScale = 2048 / (128 * 11) -> 2048 / 1408 => 1.454545
// fd* = 0.5 + 1 * 1,95
// Example 2, less skilled bot (skill = 3) same enemy
// skillReversed = (10 - 3 + 1) == 8
// fScale = 2048 / (128 * 8) -> 2048 / 1024 => 2
// fd* = 3 * 2
vTarget = vTarget + Vector(
RANDOM_FLOAT(-fDx, fDx),
RANDOM_FLOAT(-fDy, fDy),
RANDOM_FLOAT(-fDz, fDz)
);
// Add Offset
fDx = fpXOffset;
fDy = fpYOffset;
fDz = fpZOffset;
// increase offset with personality x,y,z offsets randomly
vTarget = vTarget + Vector(
RANDOM_FLOAT(-fDx, fDx),
RANDOM_FLOAT(-fDy, fDy),
RANDOM_FLOAT(-fDz, fDz)
);
if (isHoldingGrenadeOrFlashbang()) {
// aim a bit higher
vTarget = vTarget + Vector(0, 0, 50);
}
setHeadAiming(vTarget);
}
bool cBot::isBlindedByFlashbang() const {
return fBlindedTime > gpGlobals->time;
}
bool cBot::isHoldingGrenadeOrFlashbang() const {
return current_weapon.iId == CS_WEAPON_HEGRENADE || current_weapon.iId == CS_WEAPON_FLASHBANG;
}
/******************************************************************************
Function purpose: Perform fighting actions
******************************************************************************/
void cBot::FightEnemy() {
// We can see our enemy
if (!isBlindedByFlashbang() && isSeeingEnemy()) {
// GET OUT OF CAMP MODE
if (f_camp_time > gpGlobals->time) {
f_camp_time = gpGlobals->time;
}
// Next time our enemy gets out of sight, it will be the 'first' time
// of all 'frame times'.
bFirstOutOfSight = false;
// Remember last seen enemy position
lastSeenEnemyVector = pEnemyEdict->v.origin; // last seen enemy position
// FIXME: Fix the darn zoom bug
// zoom in with sniper gun
if (CarryWeaponType() == SNIPER) {
if (zoomed < ZOOM_TWICE && f_allow_keypress < gpGlobals->time) {
UTIL_BotPressKey(this, IN_ATTACK2);
f_allow_keypress = gpGlobals->time + 0.7;
zoomed++;
if (zoomed > ZOOM_TWICE)
zoomed = ZOOM_NONE;
}
} else if (FUNC_BotHoldsZoomWeapon(this)) {
if (zoomed < ZOOM_ONCE && f_allow_keypress < gpGlobals->time) {
UTIL_BotPressKey(this, IN_ATTACK2);
f_allow_keypress = gpGlobals->time + 0.7;
zoomed++;
}
}
// NOT blinded by flashbang, try to find cover?
if (f_cover_time < gpGlobals->time) {
// COVER: Not taking cover now, fight using fightstyles.
// when vip, we always take cover.
if (vip) {
// Camp, take cover, etc.
BOT_DecideTakeCover(this);
if (FUNC_DoRadio(this)) {
UTIL_BotRadioMessage(this, 3, "3", ""); // need backup
}
} else {
// DECIDE: Should we take cover or not.
if (FUNC_ShouldTakeCover(this)) {
FindCover();
}
}
} else {
}
// Keep timer updated for enemy
f_bot_find_enemy_time = gpGlobals->time + REMEMBER_ENEMY_TIME;
}
else // ---- CANNOT SEE ENEMY
{
if (f_bot_find_enemy_time < gpGlobals->time) {
pEnemyEdict = NULL;
lastSeenEnemyVector = Vector(0, 0, 0);
rprint_trace("FightEnemy()", "Lost enemy out of sight, forgetting path and goal");
forgetPath();
forgetGoal();
} else {
// When we have the enemy for the first time out of sight
// we calculate a path to the last seen position
if (!bFirstOutOfSight) {
rprint_trace("FightEnemy()", "Enemy out of sight, calculating path towards it.");
// Only change path when we update our information here
int iGoal = NodeMachine.getClosestNode(lastSeenEnemyVector, NODE_ZONE, pEdict);
if (iGoal > -1) {
setGoalNode(iGoal);
forgetPath();
}
bFirstOutOfSight = true;
} else {
if (!hasGoal()) {
rprint("Enemy out of sight and no goal, forgetting enemy");
forgetEnemy();
}
}
}
} // visible
}
void cBot::pickWeapon(int weaponId) {
UTIL_SelectItem(pEdict, UTIL_GiveWeaponName(weaponId));
f_c4_time = gpGlobals->time - 1; // reset C4 timer data
// give Counter-Strike time to switch weapon (animation, update state, etc)
f_update_weapon_time = gpGlobals->time + 0.7;
}
bool cBot::ownsFavoritePrimaryWeapon() {
return hasFavoritePrimaryWeaponPreference() && isOwningWeapon(ipFavoPriWeapon);
}
bool cBot::ownsFavoriteSecondaryWeapon() {
return hasFavoriteSecondaryWeaponPreference() && isOwningWeapon(ipFavoSecWeapon);
}
/**
* Returns true if bot has weapon (id) in possession
* @param weaponId
* @return
*/
bool cBot::isOwningWeapon(int weaponId) {
return bot_weapons & (1 << weaponId);
}
/**
* Returns true if bot carries weapon right now
* @param weaponId
* @return
*/
bool cBot::isHoldingWeapon(int weaponId) {
return (current_weapon.iId == weaponId);
}
bool cBot::hasFavoritePrimaryWeaponPreference() {
return ipFavoPriWeapon > -1;
}
bool cBot::hasFavoriteSecondaryWeaponPreference() {
return ipFavoSecWeapon > -1;
}
bool cBot::canAfford(int price) {
return this->bot_money > price;
}
/******************************************************************************
Function purpose: Based upon several events pick the best weapon
******************************************************************************/
void cBot::PickBestWeapon() {
// does Timer allow to change weapon? (only when f_update_weapon_time < gpGlobals->time
if (f_update_weapon_time > gpGlobals->time)
return;
// Distance to enemy
float fDistance = func_distance(pEdict->v.origin, lastSeenEnemyVector);
float knifeDistance = 300;
// ----------------------------
// In this function all we do is decide what weapon to pick
// if we don't pick another weapon the current weapon is okay
// ----------------------------
// First we handle situations which are bad, no matter the distance
// or any other circumstance.
// BAD: Carrying C4 or knife
if (CarryWeapon(CS_WEAPON_C4) || // carrying C4
(CarryWeapon(CS_WEAPON_KNIFE) && fDistance > knifeDistance)) { // carrying knife and too far
if (hasPrimaryWeaponEquiped()) {
pickWeapon(iPrimaryWeapon);
return;
} else if (hasSecondaryWeaponEquiped()) {
pickWeapon(iSecondaryWeapon);
return;
}
}
// At this point we do not update weapon information. And we did not 'switch back' to primary / secondary
if (hasEnemy() && !isSeeingEnemy()) {
// decision to pull HE grenade
if (isOwningWeapon(CS_WEAPON_HEGRENADE) && // we have a grenade
func_distance(pEdict->v.origin, lastSeenEnemyVector) < 900 && // we are close
func_distance(pEdict->v.origin, lastSeenEnemyVector) > 200 && // but not to close
RANDOM_LONG(0, 100) < 10 && // only randomly we pick a grenade in the heat of the battle
current_weapon.iId != CS_WEAPON_HEGRENADE && current_weapon.iId != CS_WEAPON_FLASHBANG &&
f_gren_time + 15 < gpGlobals->time) // and dont hold it yet
{
UTIL_SelectItem(pEdict, "weapon_hegrenade"); // select grenade
f_wait_time = gpGlobals->time + 1; // wait 1 second (stand still 1 sec)
f_gren_time =
gpGlobals->time + (1.0 + RANDOM_FLOAT(0.5, 1.5)); // and determine how long we should hold it
zoomed = ZOOM_NONE; // Counter-Strike resets zooming when choosing another weapon
return;
}
// OR we pull a flashbang?
if (isOwningWeapon(CS_WEAPON_FLASHBANG) && // we have a grenade
func_distance(pEdict->v.origin, lastSeenEnemyVector) < 200 && // we are close
func_distance(pEdict->v.origin, lastSeenEnemyVector) > 300 && // but not to close
RANDOM_LONG(0, 100) < 15 && // only randomly we pick a grenade in the heat of the battle
current_weapon.iId != CS_WEAPON_FLASHBANG && current_weapon.iId != CS_WEAPON_HEGRENADE &&
f_gren_time + 15 < gpGlobals->time) // and dont hold it yet
{
UTIL_SelectItem(pEdict, "weapon_flashbang"); // select grenade
f_wait_time = gpGlobals->time + 1; // wait 1 second (stand still 1 sec)
f_gren_time =
gpGlobals->time + (1.0 + RANDOM_FLOAT(0.5, 1.5)); // and determine how long we should hold it
zoomed = ZOOM_NONE; // Counter-Strike resets zooming when choosing another weapon
return;
}
}
// When we are here, we did not decide to switch to grenade/flashbang. Now we look
// if the bot has to reload or switch weapon based upon ammo.
// ----------------------------------------
// More complex bad things that can happen:
// ----------------------------------------
int iTotalAmmo = current_weapon.iAmmo1;
int iCurrentAmmo = current_weapon.iClip;
//char msg[80];
//sprintf(msg, "BOT: ICLIP %d, TOTALAMMO %d\n", iCurrentAmmo, iTotalAmmo);
// Clip is out of ammo
if (iCurrentAmmo < 1
&& (CarryWeaponType() == PRIMARY || CarryWeaponType() == SECONDARY)) {
// Camp, take cover, etc.
BOT_DecideTakeCover(this);
// We still have ammo!
if (iTotalAmmo > 0) {
UTIL_BotPressKey(this, IN_RELOAD);
f_update_weapon_time = gpGlobals->time + 0.7; // update timer
return;
} else {
// Thanks to dstruct2k for easy ctrl-c/v, i optimized the code
// a bit though. Btw, distance 600 is too far for slashing :)
// at here the bot does not have ammo of the current weapon, so
// switch to another weapon.
if (iPrimaryWeapon > -1 && // we have a primary
current_weapon.iId != iPrimaryWeapon && // that's not the current, empty gun
func_distance(pEdict->v.origin, lastSeenEnemyVector) > 300) // and we are not close enough to knife
{
// select primary weapon
UTIL_SelectItem(pEdict, UTIL_GiveWeaponName(iPrimaryWeapon)); // select the primary
return;
} else {
if (iSecondaryWeapon > -1 && current_weapon.iId != iSecondaryWeapon &&
// that's not the current, empty gun
func_distance(pEdict->v.origin, lastSeenEnemyVector) > 300) // and we are not close enough to knife
{
UTIL_SelectItem(pEdict, UTIL_GiveWeaponName(iSecondaryWeapon)); // select the secondary
return;
} else {
if (isOwningWeapon(CS_WEAPON_KNIFE) && // we have a knife (for non-knife maps)
!isHoldingWeapon(CS_WEAPON_KNIFE)) // but we do not carry it
{
UTIL_SelectItem(pEdict, "weapon_knife");
return;
}
}
} // end if
} // no ammo
}
}
/******************************************************************************
Function purpose: Fire weapon (burst; or do not fire when not allowed)
******************************************************************************/
void cBot::FireWeapon() {
// We may not shoot!
if (f_shoot_time > gpGlobals->time ||
f_update_weapon_time > gpGlobals->time)
return;
if (!isSeeingEnemy()) {
return;
}
// ------------------------------------------------------------
float fDistance = 50;