/
g_combat.c
2110 lines (1734 loc) · 56.2 KB
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g_combat.c
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/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2000-2009 Darklegion Development
This file is part of Tremulous.
Tremulous 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.
Tremulous 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 Tremulous; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
/*
===========================================================================
TREMULOUS EDGE MOD SRC FILE
===========================================================================
*/
#include "g_local.h"
damageRegion_t g_damageRegions[ PCL_NUM_CLASSES ][ MAX_DAMAGE_REGIONS ];
int g_numDamageRegions[ PCL_NUM_CLASSES ];
damageRegion_t g_armourRegions[ UP_NUM_UPGRADES ][ MAX_DAMAGE_REGIONS ];
int g_numArmourRegions[ UP_NUM_UPGRADES ];
/*
============
AddScore
Adds score to the client
============
*/
void AddScore( gentity_t *ent, int score )
{
if( !ent->client )
return;
// scale values down to fit the scoreboard better
score = rint( ((float)score) / 50.0f );
switch( ent->client->pers.teamSelection ) {
case TEAM_ALIENS:
// make alien and human scores equivalent
score = rint( ((float)score) / 2.0f );
level.alienRewardScore += score;
break;
case TEAM_HUMANS:
level.humanRewardScore += score;
break;
default:
break;
}
ent->client->ps.persistant[ PERS_SCORE ] += score;
G_admin_add_score( ent, score );
CalculateRanks( );
}
/*
==================
LookAtKiller
==================
*/
void LookAtKiller( gentity_t *self, gentity_t *inflictor, gentity_t *attacker )
{
if ( attacker && attacker != self )
self->client->ps.stats[ STAT_VIEWLOCK ] = attacker - g_entities;
else if( inflictor && inflictor != self )
self->client->ps.stats[ STAT_VIEWLOCK ] = inflictor - g_entities;
else
self->client->ps.stats[ STAT_VIEWLOCK ] = self - g_entities;
}
// these are just for logging, the client prints its own messages
char *modNames[ ] =
{
#define MOD(a,b) #a
#include "bg_mod.h"
#undef MOD
};
/*
==================
G_CamperRewardBonus
Function to compute additional reward bonus for the attacker if this killed
entity was a player near one of his/her defensive structures.
Returns a factor for multiplying the reward.
==================
*/
float G_CamperRewardBonus( gentity_t *self )
{
int maxCounted = 10;
float bonusMax = 2.0f; // Must positive!
float bonus1 = 1.0f; // Must positive!
int maxDistance = 0;
float multiplier = 0.0;
float mod = 1.0;
vec3_t temp_v;
gentity_t *ent;
int i;
int team = self->client->ps.stats[ STAT_TEAM ];
int defences = 0;
int distance = 0;
float value = 0.0f;
// exclude builders:
switch( BG_GetPlayerWeapon( &self->client->ps ) )
{
case WP_ABUILD:
case WP_HBUILD: return 1.0f;
default: ;
}
if( team == TEAM_ALIENS ) {
bonusMax = g_alienAnticampBonusMax.value;
bonus1 = g_alienAnticampBonus1.value;
maxDistance = g_alienAnticampRange.integer;
} else if( team == TEAM_HUMANS ) {
bonusMax = g_humanAnticampBonusMax.value;
bonus1 = g_humanAnticampBonus1.value;
maxDistance = g_humanAnticampRange.integer;
}
if( bonusMax <= 0.01f )
return 1.0f;
// Ensures that the denominator is positive:
bonus1 = MAX(bonus1, bonusMax / (maxCounted - 1));
// Ensures that the numerator is non-negative:
bonus1 = MIN(bonus1, bonusMax);
mod = (bonusMax - bonus1) / (bonus1 - bonusMax / maxCounted);
multiplier = bonus1 * (1 + mod);
// Look for buildables,
for( i = MAX_CLIENTS, ent = g_entities + i; i < level.num_entities; i++, ent++ )
{
if( ( ent->s.eType != ET_BUILDABLE ) ||
( !ent->spawned ) ||
( ent->health <= 0 ) )
continue;
// and filter the defensive ones in the victim's team:
switch (ent->s.modelindex) {
case BA_A_SPITEFUL_ABCESS:
case BA_A_INFESTATION_SLIME:
case BA_A_HIVE:
case BA_A_ACIDTUBE: if (team == TEAM_ALIENS) break; else continue;
case BA_H_MGTURRET2:
case BA_H_SHIELD:
case BA_H_TESLAGEN:
case BA_H_MGTURRET: if (team == TEAM_HUMANS) break; else continue;
default: continue;
}
VectorSubtract( self->client->ps.origin, ent->s.origin, temp_v );
distance = VectorLength( temp_v );
if( distance < maxDistance )
if (++defences >= maxCounted)
break;
}
if (defences > 0)
{
value = 1.0f + multiplier * (defences / (defences + mod));
value = MAX(value, 0.0f);
// G_LogPrintf( "Anti-camper bonus for killing %s near %d defences: %d%%\n",
// self->client->pers.netname, defences, (int)(value * 100.0f) );
return value;
}
else
return 1.0f;
}
float G_RewardScaleFactor( gentity_t *self, gentity_t *target )
{
float targetScore;
if( level.humanRewardScore <= 0.0f || level.alienRewardScore <= 0.0f ) return 1.0f;
switch( self->client->ps.stats[ STAT_TEAM ] ) {
case TEAM_ALIENS:
targetScore = level.humanRewardScore/level.alienRewardScore;
break;
case TEAM_HUMANS:
targetScore = level.alienRewardScore/level.humanRewardScore;
break;
default:
return 0.0f;
}
if ( target->client != NULL ) {
if( self->client->ps.persistant[ PERS_SCORE ] > 0 && target->client->ps.persistant[ PERS_SCORE ] > 0)
targetScore *= pow(target->client->ps.persistant[ PERS_SCORE ],g_RewardFactorPower.value)/pow(self->client->ps.persistant[ PERS_SCORE ],g_RewardFactorPower.value);
}
targetScore *= 1.0f-g_ConstantRewardFactor.value;
targetScore += g_ConstantRewardFactor.value;
if (targetScore < g_MinRewardFactor.value) targetScore = g_MinRewardFactor.value;
else if (targetScore > g_MaxRewardFactor.value) targetScore = g_MaxRewardFactor.value;
return targetScore;
}
/* Instantly reward the current attacker */
float G_InstantRewardAttacker( gentity_t *self, gentity_t *target, float damage )
{
float value;
int maxHealth,targetTeam;
if( damage <= 0.f ) return 0.0f;
if( !self->client ) return 0.0f;
if( target->client != NULL ) {
maxHealth = target->client->ps.stats[ STAT_MAX_HEALTH ];
targetTeam = target->client->ps.stats[ STAT_TEAM ];
} else {
maxHealth = BG_Buildable( target->s.modelindex )->health;
targetTeam = target->buildableTeam;
}
if( targetTeam == self->client->ps.stats[ STAT_TEAM ] ) return 0.0f;
value = damage / maxHealth;
if (value > 1.0f) value = 1.0f;
if( target->client != NULL ) {
value *= G_CamperRewardBonus( target );
value *= BG_GetValueOfPlayer( &target->client->ps );
} else {
value *= BG_Buildable( target->s.modelindex )->value;
value *= g_BuildingCreditsFactor.value;
}
if( targetTeam == TEAM_ALIENS) {
value *= g_InstantRewardMultiplierA.value;
} else if( targetTeam == TEAM_HUMANS ) {
value *= g_InstantRewardMultiplierH.value;
} else value = 0.f;
value *= G_RewardScaleFactor( self, target );
if( value > 0.f ) {
G_AddCreditToClient( self->client, value, qtrue );
if( self->client->ps.stats[ STAT_TEAM ] == TEAM_ALIENS ) {
trap_Cvar_Set( "g_alienCredits",
va( "%d", (int) (g_alienCredits.integer + value) ) );
trap_Cvar_Update( &g_alienCredits );
} else {
trap_Cvar_Set( "g_humanCredits",
va( "%d", (int) (g_humanCredits.integer + value) ) );
trap_Cvar_Update( &g_humanCredits );
}
}
return value;
}
/*
==================
G_RewardAttackers
Function to distribute rewards to entities that killed this one.
Returns the total damage dealt.
==================
*/
float G_RewardAttackers( gentity_t *self )
{
float value, totalDamage = 0;
int team, i, maxHealth = 0;
int alienCredits = 0, humanCredits = 0;
float teamFactor;
gentity_t *player;
// Total up all the damage done by non-teammates
for( i = 0; i < level.maxclients; i++ )
{
player = g_entities + i;
if( !OnSameTeam( self, player ) ||
self->buildableTeam != player->client->ps.stats[ STAT_TEAM ] )
totalDamage += (float)self->credits[ i ];
}
if( totalDamage <= 0.0f )
return 0.0f;
// Only give credits for killing players and buildables
if( self->client )
{
value = BG_GetValueOfPlayer( &self->client->ps );
value *= G_CamperRewardBonus( self );
team = self->client->pers.teamSelection;
maxHealth = self->client->ps.stats[ STAT_MAX_HEALTH ];
// trap_SendServerCommand( -1, va( "print \"^5You recieved%3i extra evos/credits.\n\"", value ) );
}
else if( self->s.eType == ET_BUILDABLE )
{
value = BG_Buildable( self->s.modelindex )->value;
// only give partial credits for a buildable not yet completed
if( !self->spawned )
{
value *= (float)( level.time - self->buildTime ) /
BG_Buildable( self->s.modelindex )->buildTime;
}
team = self->buildableTeam;
maxHealth = BG_Buildable( self->s.modelindex )->health;
}
else
return totalDamage;
// Give credits and empty the array
for( i = 0; i < level.maxclients; i++ )
{
int stageValue = value * self->credits[ i ] / totalDamage;
float killValue = self->credits[ i ] / maxHealth;
player = g_entities + i;
if( player->client->pers.teamSelection != team )
{
if( totalDamage < maxHealth )
stageValue *= totalDamage / maxHealth;
if( !self->credits[ i ] || player->client->ps.stats[ STAT_TEAM ] == team )
continue;
AddScore( player, stageValue );
// killing buildables earns score, but not credits unless g_BuildingCreditsFactor > 0
if( self->s.eType == ET_BUILDABLE ) stageValue *= g_BuildingCreditsFactor.value;
if( stageValue > 0 ) {
// Com_Printf(S_COLOR_YELLOW "Killer: kills = %f deaths = %f percent_of_damage = %f -> factor = %f\n",player->client->pers.kills,player->client->pers.deaths,killValue,G_RewardScaleFactor( player, self, teamFactor) );
stageValue *= G_RewardScaleFactor( player, self );
player->client->pers.kills += killValue; // NOTE: Building kills will increase this too if g_BuildingCreditsFactor > 0
// add to stage counters
if( player->client->ps.stats[ STAT_TEAM ] == TEAM_ALIENS ) {
G_AddCreditToClient( player->client, g_KillRewardMultiplierH.value*stageValue, qtrue );
alienCredits += g_KillRewardMultiplierH.value*stageValue;
} else if( player->client->ps.stats[ STAT_TEAM ] == TEAM_HUMANS ) {
G_AddCreditToClient( player->client, g_KillRewardMultiplierA.value*stageValue, qtrue );
humanCredits += g_KillRewardMultiplierA.value*stageValue;
}
}
}
self->credits[ i ] = 0;
}
// ++self->client->pers.deaths;
// Com_Printf(S_COLOR_YELLOW "Killed: kills = %f deaths = %d\n",self->client->pers.kills,self->client->pers.deaths);
// Com_Printf(S_COLOR_YELLOW "Team: kills = %f deaths = %f\n",level.alienRewardScore,level.humanRewardScore);
if( alienCredits )
{
trap_Cvar_Set( "g_alienCredits",
va( "%d", g_alienCredits.integer + alienCredits ) );
trap_Cvar_Update( &g_alienCredits );
}
if( humanCredits )
{
trap_Cvar_Set( "g_humanCredits",
va( "%d", g_humanCredits.integer + humanCredits ) );
trap_Cvar_Update( &g_humanCredits );
}
return totalDamage;
}
/*
==================
accidental_kill
Kills that are considered "accidental" and do not result in credit penalty.
==================
*/
qboolean accidental_kill( gentity_t *self, int meansOfDeath )
{
// Trampling/crushing is only possible when the victim is a granger,
// and that's considered an accident.
return meansOfDeath == MOD_LEVEL4_TRAMPLE ||
meansOfDeath == MOD_LEVEL4_CRUSH;
}
/*
==================
player_die
==================
*/
void player_die( gentity_t *self, gentity_t *inflictor, gentity_t *attacker, int damage, int meansOfDeath )
{
gentity_t *ent;
int anim;
int killer;
int i;
char *killerName, *obit;
int killerhealth = attacker->health;
if( self->client->ps.pm_type == PM_DEAD )
return;
if( level.intermissiontime )
return;
self->client->ps.pm_type = PM_DEAD;
self->suicideTime = 0;
if( attacker )
{
killer = attacker->s.number;
if( attacker->client )
killerName = attacker->client->pers.netname;
else
killerName = "<world>";
}
else
{
killer = ENTITYNUM_WORLD;
killerName = "<world>";
}
if( meansOfDeath < 0 || meansOfDeath >= sizeof( modNames ) / sizeof( modNames[0] ) )
// fall back on the number
obit = va( "%d", meansOfDeath );
else
obit = modNames[ meansOfDeath ];
G_LogPrintf( "Die: %d %d %s: %s" S_COLOR_WHITE " killed %s\n",
killer,
self - g_entities,
obit,
killerName,
self->client->pers.netname );
// deactivate all upgrades
for( i = UP_NONE + 1; i < UP_NUM_UPGRADES; i++ )
BG_DeactivateUpgrade( i, self->client->ps.stats );
if( meansOfDeath == MOD_SLAP )
{
trap_SendServerCommand( -1,
va( "print \"%s^7 felt %s^7's authority\n\"",
self->client->pers.netname, killerName ) );
goto finish_dying;
}
// Parent node on player used for tracking the shield projectile
if( self->parentNode )
{
G_FreeEntity(self->parentNode);
}
// broadcast the death event to everyone
ent = G_TempEntity( self->r.currentOrigin, EV_OBITUARY );
ent->s.eventParm = meansOfDeath;
ent->s.otherEntityNum = self->s.number;
ent->s.otherEntityNum2 = killer;
ent->r.svFlags = SVF_BROADCAST; // send to everyone
self->enemy = attacker;
self->client->ps.persistant[ PERS_KILLED ]++;
if( attacker && attacker->client )
{
attacker->client->lastkilled_client = self->s.number;
if( killerhealth <= 0)
{
killerhealth = 0;
}
if( g_devmapKillerHP.integer )
{
trap_SendServerCommand( self-g_entities, va( "print \"^5Your killer, %s,^5 had %3i HP.\n\"", killerName, killerhealth ) );
}
if( ( attacker == self || OnSameTeam( self, attacker ) ) && meansOfDeath != MOD_HSPAWN && !accidental_kill( self, meansOfDeath ) )
{
//punish team kills and suicides
if( attacker->client->ps.stats[ STAT_TEAM ] == TEAM_ALIENS )
{
G_AddCreditToClient( attacker->client, -ALIEN_TK_SUICIDE_PENALTY, qtrue );
AddScore( attacker, -ALIEN_TK_SUICIDE_PENALTY );
}
else if( attacker->client->ps.stats[ STAT_TEAM ] == TEAM_HUMANS )
{
G_AddCreditToClient( attacker->client, -HUMAN_TK_SUICIDE_PENALTY, qtrue );
AddScore( attacker, -HUMAN_TK_SUICIDE_PENALTY );
}
}
}
else if( attacker->s.eType != ET_BUILDABLE )
{
if( self->client->ps.stats[ STAT_TEAM ] == TEAM_ALIENS )
AddScore( self, -ALIEN_TK_SUICIDE_PENALTY );
else if( self->client->ps.stats[ STAT_TEAM ] == TEAM_HUMANS )
AddScore( self, -HUMAN_TK_SUICIDE_PENALTY );
}
// give credits for killing this player
G_RewardAttackers( self );
//Show info about reward
// valueb *= G_CamperRewardBonus( self );
// valueb = G_CamperRewardBonus( self );
// trap_SendServerCommand( attacker-g_entities, va( "print \"^5You recieved +%d%% extra evos/credits for attacking.\n\"", (int)((valueb)) ));
// trap_SendServerCommand( attacker-g_entities, va( "print \"^5You recieved extra %3i evos/credits for attacking.\n\"" ,valueb ) );
// if( valueb > 1300000000 )
//{
// trap_SendServerCommand( attacker-g_entities, va( "print \"^5You recieved extra evos/credits for attacking.\n\"" ) );
//}
ScoreboardMessage( self ); // show scores
// send updated scores to any clients that are following this one,
// or they would get stale scoreboards
for( i = 0 ; i < level.maxclients ; i++ )
{
gclient_t *client;
client = &level.clients[ i ];
if( client->pers.connected != CON_CONNECTED )
continue;
if( client->sess.spectatorState == SPECTATOR_NOT )
continue;
if( client->sess.spectatorClient == self->s.number )
ScoreboardMessage( g_entities + i );
}
finish_dying: // from MOD_SLAP
VectorCopy( self->s.origin, self->client->pers.lastDeathLocation );
self->takedamage = qfalse; // can still be gibbed
self->s.weapon = WP_NONE;
self->r.contents = CONTENTS_CORPSE;
self->s.angles[ PITCH ] = 0;
self->s.angles[ ROLL ] = 0;
self->s.angles[ YAW ] = self->s.apos.trBase[ YAW ];
LookAtKiller( self, inflictor, attacker );
VectorCopy( self->s.angles, self->client->ps.viewangles );
self->s.loopSound = 0;
self->r.maxs[ 2 ] = -8;
// don't allow respawn until the death anim is done
// g_forcerespawn may force spawning at some later time
self->client->respawnTime = level.time + 1700;
// clear misc
memset( self->client->ps.misc, 0, sizeof( self->client->ps.misc ) );
{
// normal death
static int i;
if( !( self->client->ps.persistant[ PERS_STATE ] & PS_NONSEGMODEL ) )
{
switch( i )
{
case 0:
anim = BOTH_DEATH1;
break;
case 1:
anim = BOTH_DEATH2;
break;
case 2:
default:
anim = BOTH_DEATH3;
break;
}
}
else
{
switch( i )
{
case 0:
anim = NSPA_DEATH1;
break;
case 1:
anim = NSPA_DEATH2;
break;
case 2:
default:
anim = NSPA_DEATH3;
break;
}
}
self->client->ps.legsAnim =
( ( self->client->ps.legsAnim & ANIM_TOGGLEBIT ) ^ ANIM_TOGGLEBIT ) | anim;
if( !( self->client->ps.persistant[ PERS_STATE ] & PS_NONSEGMODEL ) )
{
self->client->ps.torsoAnim =
( ( self->client->ps.torsoAnim & ANIM_TOGGLEBIT ) ^ ANIM_TOGGLEBIT ) | anim;
}
// use own entityid if killed by non-client to prevent uint8_t overflow
{
int param = ( killer < MAX_CLIENTS ) ? killer : self - g_entities;
if( self->client->damage_headshot )
param |= EVENT_HEADSHOT_BIT;
G_AddEvent( self, EV_DEATH1 + i, param );
}
// globally cycle through the different death animations
i = ( i + 1 ) % 3;
}
trap_LinkEntity( self );
}
/*
===============
G_ParseDmgScript
===============
*/
static int G_ParseDmgScript( damageRegion_t *regions, char *buf )
{
char *token;
float angleSpan, heightSpan;
int count;
for( count = 0; ; count++ )
{
token = COM_Parse( &buf );
if( !token[ 0 ] )
break;
if( strcmp( token, "{" ) )
{
COM_ParseError( "Missing {" );
break;
}
if( count >= MAX_DAMAGE_REGIONS )
{
COM_ParseError( "Max damage regions exceeded" );
break;
}
// defaults
regions[ count ].name[ 0 ] = '\0';
regions[ count ].minHeight = 0.0f;
regions[ count ].maxHeight = 1.0f;
regions[ count ].minAngle = 0.0f;
regions[ count ].maxAngle = 360.0f;
regions[ count ].modifier = 1.0f;
regions[ count ].crouch = qfalse;
while( 1 )
{
token = COM_ParseExt( &buf, qtrue );
if( !token[ 0 ] )
{
COM_ParseError( "Unexpected end of file" );
break;
}
if( !Q_stricmp( token, "}" ) )
{
break;
}
else if( !strcmp( token, "name" ) )
{
token = COM_ParseExt( &buf, qfalse );
if( token[ 0 ] )
Q_strncpyz( regions[ count ].name, token,
sizeof( regions[ count ].name ) );
}
else if( !strcmp( token, "minHeight" ) )
{
token = COM_ParseExt( &buf, qfalse );
if( !token[ 0 ] )
strcpy( token, "0" );
regions[ count ].minHeight = atof( token );
}
else if( !strcmp( token, "maxHeight" ) )
{
token = COM_ParseExt( &buf, qfalse );
if( !token[ 0 ] )
strcpy( token, "100" );
regions[ count ].maxHeight = atof( token );
}
else if( !strcmp( token, "minAngle" ) )
{
token = COM_ParseExt( &buf, qfalse );
if( !token[ 0 ] )
strcpy( token, "0" );
regions[ count ].minAngle = atoi( token );
}
else if( !strcmp( token, "maxAngle" ) )
{
token = COM_ParseExt( &buf, qfalse );
if( !token[ 0 ] )
strcpy( token, "360" );
regions[ count ].maxAngle = atoi( token );
}
else if( !strcmp( token, "modifier" ) )
{
token = COM_ParseExt( &buf, qfalse );
if( !token[ 0 ] )
strcpy( token, "1.0" );
regions[ count ].modifier = atof( token );
}
else if( !strcmp( token, "crouch" ) )
{
regions[ count ].crouch = qtrue;
}
else
{
COM_ParseWarning("Unknown token \"%s\"", token);
}
}
// Angle portion covered
angleSpan = regions[ count ].maxAngle - regions[ count ].minAngle;
if( angleSpan < 0.0f )
angleSpan += 360.0f;
angleSpan /= 360.0f;
// Height portion covered
heightSpan = regions[ count ].maxHeight - regions[ count ].minHeight;
if( heightSpan < 0.0f )
heightSpan = -heightSpan;
if( heightSpan > 1.0f )
heightSpan = 1.0f;
regions[ count ].area = angleSpan * heightSpan;
if( !regions[ count ].area )
regions[ count ].area = 0.00001f;
}
return count;
}
/*
============
GetRegionDamageModifier
============
*/
static float GetRegionDamageModifier( gentity_t *targ, int class, int piece )
{
damageRegion_t *regions, *overlap;
float modifier = 0.0f, areaSum = 0.0f;
int j, i;
qboolean crouch;
crouch = targ->client->ps.pm_flags & PMF_DUCKED;
overlap = &g_damageRegions[ class ][ piece ];
if( g_debugDamage.integer > 2 )
G_Printf( "GetRegionDamageModifier():\n"
". bodyRegion = [%d %d %f %f] (%s)\n"
". modifier = %f\n",
overlap->minAngle, overlap->maxAngle,
overlap->minHeight, overlap->maxHeight,
overlap->name, overlap->modifier );
// Find the armour layer modifier, assuming that none of the armour regions
// overlap and that any areas that are not covered have a modifier of 1.0
for( j = UP_NONE + 1; j < UP_NUM_UPGRADES; j++ )
{
if( !BG_InventoryContainsUpgrade( j, targ->client->ps.stats ) ||
!g_numArmourRegions[ j ] )
continue;
regions = g_armourRegions[ j ];
for( i = 0; i < g_numArmourRegions[ j ]; i++ )
{
float overlapMaxA, regionMinA, regionMaxA, angleSpan, heightSpan, area;
if( regions[ i ].crouch != crouch )
continue;
// Convert overlap angle to 0 to max
overlapMaxA = overlap->maxAngle - overlap->minAngle;
if( overlapMaxA < 0.0f )
overlapMaxA += 360.0f;
// Convert region angles to match overlap
regionMinA = regions[ i ].minAngle - overlap->minAngle;
if( regionMinA < 0.0f )
regionMinA += 360.0f;
regionMaxA = regions[ i ].maxAngle - overlap->minAngle;
if( regionMaxA < 0.0f )
regionMaxA += 360.0f;
// Overlapping Angle portion
if( regionMinA <= regionMaxA )
{
angleSpan = 0.0f;
if( regionMinA < overlapMaxA )
{
if( regionMaxA > overlapMaxA )
regionMaxA = overlapMaxA;
angleSpan = regionMaxA - regionMinA;
}
}
else
{
if( regionMaxA > overlapMaxA )
regionMaxA = overlapMaxA;
angleSpan = regionMaxA;
if( regionMinA < overlapMaxA )
angleSpan += overlapMaxA - regionMinA;
}
angleSpan /= 360.0f;
// Overlapping height portion
heightSpan = MIN( overlap->maxHeight, regions[ i ].maxHeight ) -
MAX( overlap->minHeight, regions[ i ].minHeight );
if( heightSpan < 0.0f )
heightSpan = 0.0f;
if( heightSpan > 1.0f )
heightSpan = 1.0f;
if( g_debugDamage.integer > 2 )
G_Printf( ". armourRegion = [%d %d %f %f] (%s)\n"
". . modifier = %f\n"
". . angleSpan = %f\n"
". . heightSpan = %f\n",
regions[ i ].minAngle, regions[ i ].maxAngle,
regions[ i ].minHeight, regions[ i ].maxHeight,
regions[ i ].name, regions[ i ].modifier,
angleSpan, heightSpan );
areaSum += area = angleSpan * heightSpan;
modifier += regions[ i ].modifier * area;
}
}
if( g_debugDamage.integer > 2 )
G_Printf( ". areaSum = %f\n"
". armourModifier = %f\n", areaSum, modifier );
return overlap->modifier * ( overlap->area + modifier - areaSum );
}
/*
============
GetNonLocDamageModifier
============
*/
static float GetNonLocDamageModifier( gentity_t *targ, int class )
{
float modifier = 0.0f, area = 0.0f, scale = 0.0f;
int i;
qboolean crouch;
// For every body region, use stretch-armor formula to apply armour modifier
// for any overlapping area that armour shares with the body region
crouch = targ->client->ps.pm_flags & PMF_DUCKED;
for( i = 0; i < g_numDamageRegions[ class ]; i++ )
{
damageRegion_t *region;
region = &g_damageRegions[ class ][ i ];
if( region->crouch != crouch )
continue;
modifier += GetRegionDamageModifier( targ, class, i );
scale += region->modifier * region->area;
area += region->area;
}
modifier = !scale ? 1.0f : 1.0f + ( modifier / scale - 1.0f ) * area;
if( g_debugDamage.integer > 1 )
G_Printf( "GetNonLocDamageModifier() modifier:%f, area:%f, scale:%f\n",
modifier, area, scale );
return modifier;
}
/*
============
GetPointDamageModifier
Returns the damage region given an angle and a height proportion
============
*/
static float GetPointDamageModifier( gentity_t *targ, damageRegion_t *regions,
int len, float angle, float height )
{
float modifier = 1.0f;
int i;
for( i = 0; i < len; i++ )
{
if( regions[ i ].crouch != ( targ->client->ps.pm_flags & PMF_DUCKED ) )
continue;
// Angle must be within range
if( ( regions[ i ].minAngle <= regions[ i ].maxAngle &&
( angle < regions[ i ].minAngle ||
angle > regions[ i ].maxAngle ) ) ||
( regions[ i ].minAngle > regions[ i ].maxAngle &&
angle > regions[ i ].maxAngle && angle < regions[ i ].minAngle ) )
continue;
// Height must be within range
if( height < regions[ i ].minHeight || height > regions[ i ].maxHeight )
continue;
modifier *= regions[ i ].modifier;
}
// if( g_debugDamage.integer )
if( g_debugDamage.integer )
G_Printf( "GetDamageRegionModifier(angle = %f, height = %f): %f\n",
angle, height, modifier );
return modifier;
}
/*
============
G_CalcDamageModifier
============
*/
static float G_CalcDamageModifier( vec3_t point, gentity_t *targ, gentity_t *attacker, int class, int dflags )
{
vec3_t targOrigin, bulletPath, bulletAngle, pMINUSfloor, floor, normal;
float clientHeight, hitRelative, hitRatio, modifier;
int hitRotation, i;
if( point == NULL )
return 1.0f;
// Don't need to calculate angles and height for non-locational damage
if( dflags & DAMAGE_NO_LOCDAMAGE )
{
const int mod = targ->client->lasthurt_mod;
// basi - flamer protection
if( ( ( mod == MOD_FLAMER ) || ( mod == MOD_FLAMER_SPLASH ) ) &&
( ( class == PCL_ALIEN_LEVEL1 ) || ( class == PCL_ALIEN_LEVEL1_UPG ) ) )
return 0.1f;
return GetNonLocDamageModifier( targ, class );
}
// Get the point location relative to the floor under the target
if( g_unlagged.integer && targ->client && targ->client->unlaggedCalc.used )
VectorCopy( targ->client->unlaggedCalc.origin, targOrigin );
else
VectorCopy( targ->r.currentOrigin, targOrigin );
BG_GetClientNormal( &targ->client->ps, normal );
VectorMA( targOrigin, targ->r.mins[ 2 ], normal, floor );
VectorSubtract( point, floor, pMINUSfloor );
// Get the proportion of the target height where the hit landed
clientHeight = targ->r.maxs[ 2 ] - targ->r.mins[ 2 ];