-
Notifications
You must be signed in to change notification settings - Fork 0
/
bot_combat.cpp
128 lines (104 loc) · 4.58 KB
/
bot_combat.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
/*
* The GINA Bot - a computer opponent for Valve's FPS game Half-Life
* Copyright (c) 2011, Wei Mingzhi <whistler_wmz@users.sf.net>
*
* This file is part of The GINA Bot.
*
* The GINA Bot 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 3 of the License, or (at
* your option) any later version.
*
* The GINA Bot 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 The GINA Bot; if not, visit <http://www.gnu.org/licenses>.
*
* In addition, as a special exception, the author gives permission to
* link the code of this program with the Half-Life Game Engine ("HL
* Engine") and Modified Game Libraries ("MODs") developed by Valve,
* L.L.C ("Valve"). You must obey the GNU General Public License in all
* respects for all of the code used other than the HL Engine and MODs
* from Valve. If you modify this file, you may extend this exception
* to your version of the file, but you are not obligated to do so. If
* you do not wish to do so, delete this exception statement from your
* version.
*/
//
// bot_combat.cpp
//
#include "main.h"
bool CBaseBot::FindEnemy()
{
// check if the health is decreased
bool fHealthDecreased = m_iPrevHealth > GetHealth();
m_iPrevHealth = GetHealth(); // store away the current health value
float cur_dist;
if (m_pEnemy && (!m_pEnemy->IsValid() || !m_pEnemy->IsAlive()))
m_pEnemy = NULL; // null out the enemy pointer as it's no longer valid
Vector vecHisPos;
unsigned char cHit;
// see if we can still see the current enemy...
if (m_pEnemy) {
if (FBoxVisible(m_pEnemy, &vecHisPos, &cHit)) {
m_vecEnemy = vecHisPos;
m_ucVisibility = cHit;
} else {
m_pEnemy = NULL; // we can no longer see this enemy
}
}
// if we already have an enemy...
if (m_pEnemy) {
// don't discard important enemies (bomb/flag/hostage carrier, VIP, etc)
if (g_pServer->ClientIsImportant(EnemyClient()))
return false;
// calculate the distance to the enemy
cur_dist = (m_pEnemy->GetOrigin() - GetOrigin()).Length();
} else {
cur_dist = FLT_MAX; // just some crazy value
}
// loop through all the clients...
for (int i = 0; i < g_pServer->GetMaxClients(); i++) {
if (i == entindex() - 1 || (m_pEnemy && i == m_pEnemy->entindex() - 1))
continue; // skip myself and the current enemy
CClient *pClient = g_pServer->m_rgpClients[i];
if (!pClient || !pClient->IsValid() || !pClient->IsAlive())
continue;
float dist = (pClient->GetOrigin() - GetOrigin()).Length();
// if this enemy is further away than the current one...
if (dist > cur_dist && !g_pServer->ClientIsImportant(pClient))
continue; // skip it
if (dist > 900 + 4000 * ((GetDifficulty() - 1) / 4.0))
continue; // enemy is too far
if (g_pServer->IsTeamplay() && GetTeam() == g_pServer->GetTeam(pClient))
continue; // skip our teammates
float fov;
// if the bot's health decreased or the enemy is shooting
if (!m_pEnemy && (fHealthDecreased || pClient->IsShooting()))
fov = 360;
else
fov = GetFov() * 2 - (GetFov() - (dist > GetFov() * 9 ? GetFov() * 9 : dist) / 9);
// check if enemy is in the view cone
if (!FInViewCone(pClient, fov))
continue; // enemy isn't in bot's view cone
// check if enemy is visible
if (!FBoxVisible(pClient, &vecHisPos, &cHit)) {
continue; // skip this enemy
}
// if the enemy is quite far away, not shooting and the bot is not damaged
if (!m_pEnemy && dist > 200 && !fHealthDecreased && !pClient->IsShooting()) {
// if the bot isn't in the fov of the enemy and the bot doesn't really want to fight
if (!pClient->FInViewCone(this, 120) /*&& BotWantsToRetreat()*/)
continue; // skip this enemy
}
m_pEnemy = pClient; // found a new enemy
m_vecEnemy = vecHisPos;
m_ucVisibility = cHit;
DebugMsg(DEBUG_BOTCOMBAT, "Found new enemy: %s", m_pEnemy->GetNetName());
return true;
}
return false; // no new enemy is found
}