in doom_py/src/vizdoom/src/p_interaction.cpp [934:1557]
int P_DamageMobj (AActor *target, AActor *inflictor, AActor *source, int damage, FName mod, int flags)
{
unsigned ang;
player_t *player = NULL;
fixed_t thrust;
int temp;
int painchance = 0;
FState * woundstate = NULL;
PainChanceList * pc = NULL;
bool justhit = false;
bool plrDontThrust = false;
bool invulpain = false;
bool fakedPain = false;
bool forcedPain = false;
int fakeDamage = 0;
int holdDamage = 0;
int rawdamage = damage;
if (damage < 0) damage = 0;
if (target == NULL || !((target->flags & MF_SHOOTABLE) || (target->flags6 & MF6_VULNERABLE)))
{ // Shouldn't happen
return -1;
}
//Rather than unnecessarily call the function over and over again, let's be a little more efficient.
fakedPain = (isFakePain(target, inflictor, damage));
forcedPain = (MustForcePain(target, inflictor));
// Spectral targets only take damage from spectral projectiles.
if (target->flags4 & MF4_SPECTRAL && damage < TELEFRAG_DAMAGE)
{
if (inflictor == NULL || !(inflictor->flags4 & MF4_SPECTRAL))
{
return -1;
}
}
if (target->health <= 0)
{
if (inflictor && mod == NAME_Ice && !(inflictor->flags7 & MF7_ICESHATTER))
{
return -1;
}
else if (target->flags & MF_ICECORPSE) // frozen
{
target->tics = 1;
target->flags6 |= MF6_SHATTERING;
target->velx = target->vely = target->velz = 0;
}
return -1;
}
// [MC] Changed it to check rawdamage here for consistency, even though that doesn't actually do anything
// different here. At any rate, invulnerable is being checked before type factoring, which is then being
// checked by player cheats/invul/buddha followed by monster buddha. This is inconsistent. Don't let the
// original telefrag damage CHECK (rawdamage) be influenced by outside factors when looking at cheats/invul.
if ((target->flags2 & MF2_INVULNERABLE) && (rawdamage < TELEFRAG_DAMAGE) && (!(flags & DMG_FORCED)))
{ // actor is invulnerable
if (target->player == NULL)
{
if (inflictor == NULL || (!(inflictor->flags3 & MF3_FOILINVUL) && !(flags & DMG_FOILINVUL)))
{
if (fakedPain)
{
// big mess here: What do we use for the pain threshold?
// We cannot run the various damage filters below so for consistency it needs to be 0.
damage = 0;
invulpain = true;
goto fakepain;
}
else
return -1;
}
}
else
{
// Players are optionally excluded from getting thrust by damage.
if (static_cast<APlayerPawn *>(target)->PlayerFlags & PPF_NOTHRUSTWHENINVUL)
{
if (fakedPain)
plrDontThrust = 1;
else
return -1;
}
}
}
if (inflictor != NULL)
{
if (inflictor->flags5 & MF5_PIERCEARMOR)
flags |= DMG_NO_ARMOR;
}
MeansOfDeath = mod;
// [RH] Andy Baker's Stealth monsters
if (target->flags & MF_STEALTH)
{
target->alpha = OPAQUE;
target->visdir = -1;
}
if (target->flags & MF_SKULLFLY)
{
target->velx = target->vely = target->velz = 0;
}
player = target->player;
if (!(flags & DMG_FORCED)) // DMG_FORCED skips all special damage checks, TELEFRAG_DAMAGE may not be reduced at all
{
if (target->flags2 & MF2_DORMANT)
{
// Invulnerable, and won't wake up
return -1;
}
if ((rawdamage < TELEFRAG_DAMAGE) || (target->flags7 & MF7_LAXTELEFRAGDMG)) // TELEFRAG_DAMAGE may only be reduced with LAXTELEFRAGDMG or it may not guarantee its effect.
{
if (player && damage > 1)
{
// Take half damage in trainer mode
damage = FixedMul(damage, G_SkillProperty(SKILLP_DamageFactor));
}
// Special damage types
if (inflictor)
{
if (inflictor->flags4 & MF4_SPECTRAL)
{
if (player != NULL)
{
if (!deathmatch && inflictor->FriendPlayer > 0)
return -1;
}
else if (target->flags4 & MF4_SPECTRAL)
{
if (inflictor->FriendPlayer == 0 && !target->IsHostile(inflictor))
return -1;
}
}
damage = inflictor->DoSpecialDamage(target, damage, mod);
if (damage < 0)
{
return -1;
}
}
int olddam = damage;
if (damage > 0 && source != NULL)
{
damage = FixedMul(damage, source->DamageMultiply);
// Handle active damage modifiers (e.g. PowerDamage)
if (damage > 0 && source->Inventory != NULL)
{
source->Inventory->ModifyDamage(damage, mod, damage, false);
}
}
// Handle passive damage modifiers (e.g. PowerProtection), provided they are not afflicted with protection penetrating powers.
if (damage > 0 && (target->Inventory != NULL) && !(flags & DMG_NO_PROTECT))
{
target->Inventory->ModifyDamage(damage, mod, damage, true);
}
if (damage > 0 && !(flags & DMG_NO_FACTOR))
{
damage = FixedMul(damage, target->DamageFactor);
if (damage > 0)
{
damage = DamageTypeDefinition::ApplyMobjDamageFactor(damage, mod, target->GetClass()->ActorInfo->DamageFactors);
}
}
if (damage >= 0)
{
damage = target->TakeSpecialDamage(inflictor, source, damage, mod);
}
// '<0' is handled below. This only handles the case where damage gets reduced to 0.
if (damage == 0 && olddam > 0)
{
{ // Still allow FORCEPAIN
if (forcedPain)
{
goto dopain;
}
else if (fakedPain)
{
goto fakepain;
}
return -1;
}
}
}
if (target->flags5 & MF5_NODAMAGE)
{
damage = 0;
}
}
if (damage < 0)
{
// any negative value means that something in the above chain has cancelled out all damage and all damage effects, including pain.
return -1;
}
// Push the target unless the source's weapon's kickback is 0.
// (i.e. Gauntlets/Chainsaw)
if (!plrDontThrust && inflictor && inflictor != target // [RH] Not if hurting own self
&& !(target->flags & MF_NOCLIP)
&& !(inflictor->flags2 & MF2_NODMGTHRUST)
&& !(flags & DMG_THRUSTLESS)
&& !(target->flags7 & MF7_DONTTHRUST)
&& (source == NULL || source->player == NULL || !(source->flags2 & MF2_NODMGTHRUST)))
{
int kickback;
if (inflictor && inflictor->projectileKickback)
kickback = inflictor->projectileKickback;
else if (!source || !source->player || !source->player->ReadyWeapon)
kickback = gameinfo.defKickback;
else
kickback = source->player->ReadyWeapon->Kickback;
if (kickback)
{
AActor *origin = (source && (flags & DMG_INFLICTOR_IS_PUFF))? source : inflictor;
// If the origin and target are in exactly the same spot, choose a random direction.
// (Most likely cause is from telefragging somebody during spawning because they
// haven't moved from their spawn spot at all.)
if (origin->X() == target->X() && origin->Y() == target->Y())
{
ang = pr_kickbackdir.GenRand32();
}
else
{
ang = origin->AngleTo(target);
}
// Calculate this as float to avoid overflows so that the
// clamping that had to be done here can be removed.
double fltthrust;
fltthrust = mod == NAME_MDK ? 10 : 32;
if (target->Mass > 0)
{
fltthrust = clamp((damage * 0.125 * kickback) / target->Mass, 0., fltthrust);
}
thrust = FLOAT2FIXED(fltthrust);
// Don't apply ultra-small damage thrust
if (thrust < FRACUNIT/100) thrust = 0;
// make fall forwards sometimes
if ((damage < 40) && (damage > target->health)
&& (target->Z() - origin->Z() > 64*FRACUNIT)
&& (pr_damagemobj()&1)
// [RH] But only if not too fast and not flying
&& thrust < 10*FRACUNIT
&& !(target->flags & MF_NOGRAVITY)
&& (inflictor == NULL || !(inflictor->flags5 & MF5_NOFORWARDFALL))
)
{
ang += ANG180;
thrust *= 4;
}
ang >>= ANGLETOFINESHIFT;
if (source && source->player && (flags & DMG_INFLICTOR_IS_PUFF)
&& source->player->ReadyWeapon != NULL &&
(source->player->ReadyWeapon->WeaponFlags & WIF_STAFF2_KICKBACK))
{
// Staff power level 2
target->velx += FixedMul (10*FRACUNIT, finecosine[ang]);
target->vely += FixedMul (10*FRACUNIT, finesine[ang]);
if (!(target->flags & MF_NOGRAVITY))
{
target->velz += 5*FRACUNIT;
}
}
else
{
target->velx += FixedMul (thrust, finecosine[ang]);
target->vely += FixedMul (thrust, finesine[ang]);
}
}
}
// [RH] Avoid friendly fire if enabled
if (!(flags & DMG_FORCED) && source != NULL &&
((player && player != source->player) || (!player && target != source)) &&
target->IsTeammate (source))
{
//Use the original damage to check for telefrag amount. Don't let the now-amplified damagetypes do it.
if (rawdamage < TELEFRAG_DAMAGE || (target->flags7 & MF7_LAXTELEFRAGDMG))
{ // Still allow telefragging :-(
damage = (int)((float)damage * level.teamdamage);
if (damage < 0)
{
return damage;
}
else if (damage == 0)
{
if (forcedPain)
{
goto dopain;
}
else if (fakedPain)
{
goto fakepain;
}
return -1;
}
}
}
//
// player specific
//
if (player)
{
//Added by MC: Lets bots look allround for enemies if they survive an ambush.
if (player->Bot != NULL)
{
player->Bot->allround = true;
}
// end of game hell hack
if ((target->Sector->Flags & SECF_ENDLEVEL) && damage >= target->health)
{
damage = target->health - 1;
}
if (!(flags & DMG_FORCED))
{
// check the real player, not a voodoo doll here for invulnerability effects
if ((rawdamage < TELEFRAG_DAMAGE && ((player->mo->flags2 & MF2_INVULNERABLE) ||
(player->cheats & CF_GODMODE))) ||
(player->cheats & CF_GODMODE2) || (player->mo->flags5 & MF5_NODAMAGE))
//Absolutely no hurting if NODAMAGE is involved. Same for GODMODE2.
{ // player is invulnerable, so don't hurt him
//Make sure no godmodes and NOPAIN flags are found first.
//Then, check to see if the player has NODAMAGE or ALLOWPAIN, or inflictor has CAUSEPAIN.
if ((player->cheats & CF_GODMODE) || (player->cheats & CF_GODMODE2) || (player->mo->flags5 & MF5_NOPAIN))
return -1;
else if ((((player->mo->flags7 & MF7_ALLOWPAIN) || (player->mo->flags5 & MF5_NODAMAGE)) || ((inflictor != NULL) && (inflictor->flags7 & MF7_CAUSEPAIN))))
{
invulpain = true;
goto fakepain;
}
else
return -1;
}
if (!(flags & DMG_NO_ARMOR) && player->mo->Inventory != NULL)
{
int newdam = damage;
if (damage > 0)
{
player->mo->Inventory->AbsorbDamage(damage, mod, newdam);
}
if ((rawdamage < TELEFRAG_DAMAGE) || (player->mo->flags7 & MF7_LAXTELEFRAGDMG)) //rawdamage is never modified.
{
// if we are telefragging don't let the damage value go below that magic value. Some further checks would fail otherwise.
damage = newdam;
}
if (damage <= 0)
{
// If MF6_FORCEPAIN is set, make the player enter the pain state.
if (!(target->flags5 & MF5_NOPAIN) && inflictor != NULL &&
(inflictor->flags6 & MF6_FORCEPAIN) && !(inflictor->flags5 & MF5_PAINLESS)
&& (!(player->mo->flags2 & MF2_INVULNERABLE)) && (!(player->cheats & CF_GODMODE)) && (!(player->cheats & CF_GODMODE2)))
{
goto dopain;
}
return damage;
}
}
if (damage >= player->health && rawdamage < TELEFRAG_DAMAGE
&& (G_SkillProperty(SKILLP_AutoUseHealth) || deathmatch)
&& !player->morphTics)
{ // Try to use some inventory health
P_AutoUseHealth (player, damage - player->health + 1);
}
}
player->health -= damage; // mirror mobj health here for Dave
// [RH] Make voodoo dolls and real players record the same health
target->health = player->mo->health -= damage;
if (player->health < 50 && !deathmatch && !(flags & DMG_FORCED))
{
P_AutoUseStrifeHealth (player);
player->mo->health = player->health;
}
if (player->health <= 0)
{
// [SP] Buddha cheat: if the player is about to die, rescue him to 1 health.
// This does not save the player if damage >= TELEFRAG_DAMAGE, still need to
// telefrag him right? ;) (Unfortunately the damage is "absorbed" by armor,
// but telefragging should still do enough damage to kill the player)
// Ignore players that are already dead.
// [MC]Buddha2 absorbs telefrag damage, and anything else thrown their way.
if (!(flags & DMG_FORCED) && (((player->cheats & CF_BUDDHA2) || (((player->cheats & CF_BUDDHA) || (player->mo->flags7 & MF7_BUDDHA)) && (rawdamage < TELEFRAG_DAMAGE))) && (player->playerstate != PST_DEAD)))
{
// If this is a voodoo doll we need to handle the real player as well.
player->mo->health = target->health = player->health = 1;
}
else
{
player->health = 0;
}
}
player->LastDamageType = mod;
player->attacker = source;
player->damagecount += damage; // add damage after armor / invuln
if (player->damagecount > 100)
{
player->damagecount = 100; // teleport stomp does 10k points...
}
temp = damage < 100 ? damage : 100;
if (player == &players[consoleplayer])
{
I_Tactile (40,10,40+temp*2);
}
}
else
{
// Armor for monsters.
if (!(flags & (DMG_NO_ARMOR|DMG_FORCED)) && target->Inventory != NULL && damage > 0)
{
int newdam = damage;
target->Inventory->AbsorbDamage (damage, mod, newdam);
damage = newdam;
if (damage <= 0)
{
if (fakedPain)
goto fakepain;
else
return damage;
}
}
target->health -= damage;
}
//
// the damage has been dealt; now deal with the consequences
//
target->DamageTypeReceived = mod;
// If the damaging player has the power of drain, give the player 50% of the damage
// done in health.
if ( source && source->player && source->player->cheats & CF_DRAIN && !(target->flags5 & MF5_DONTDRAIN))
{
if (!target->player || target->player != source->player)
{
if ( P_GiveBody( source, damage / 2 ))
{
S_Sound( source, CHAN_ITEM, "*drainhealth", 1, ATTN_NORM );
}
}
}
if (target->health <= 0)
{
//[MC]Buddha flag for monsters.
if (!(flags & DMG_FORCED) && ((target->flags7 & MF7_BUDDHA) && (rawdamage < TELEFRAG_DAMAGE) && ((inflictor == NULL || !(inflictor->flags7 & MF7_FOILBUDDHA)) && !(flags & DMG_FOILBUDDHA))))
{ //FOILBUDDHA or Telefrag damage must kill it.
target->health = 1;
}
else
{
// Death
target->special1 = damage;
// use inflictor's death type if it got one.
if (inflictor && inflictor->DeathType != NAME_None) mod = inflictor->DeathType;
// check for special fire damage or ice damage deaths
if (mod == NAME_Fire)
{
if (player && !player->morphTics)
{ // Check for flame death
if (!inflictor ||
((target->health > -50) && (damage > 25)) ||
!(inflictor->flags5 & MF5_SPECIALFIREDAMAGE))
{
target->DamageType = NAME_Fire;
}
}
else
{
target->DamageType = NAME_Fire;
}
}
else
{
target->DamageType = mod;
}
if (source && source->tracer && (source->flags5 & MF5_SUMMONEDMONSTER))
{ // Minotaur's kills go to his master
// Make sure still alive and not a pointer to fighter head
if (source->tracer->player && (source->tracer->player->mo == source->tracer))
{
source = source->tracer;
}
}
target->Die (source, inflictor, flags);
return damage;
}
}
woundstate = target->FindState(NAME_Wound, mod);
if (woundstate != NULL)
{
int woundhealth = RUNTIME_TYPE(target)->Meta.GetMetaInt (AMETA_WoundHealth, 6);
if (target->health <= woundhealth)
{
target->SetState (woundstate);
return damage;
}
}
fakepain: //Needed so we can skip the rest of the above, but still obey the original rules.
if (!(target->flags5 & MF5_NOPAIN) && (inflictor == NULL || !(inflictor->flags5 & MF5_PAINLESS)) &&
(target->player != NULL || !G_SkillProperty(SKILLP_NoPain)) && !(target->flags & MF_SKULLFLY))
{
pc = target->GetClass()->ActorInfo->PainChances;
painchance = target->PainChance;
if (pc != NULL)
{
int *ppc = pc->CheckKey(mod);
if (ppc != NULL)
{
painchance = *ppc;
}
}
if (((damage >= target->PainThreshold) && (pr_damagemobj() < painchance))
|| (inflictor != NULL && (inflictor->flags6 & MF6_FORCEPAIN)))
{
dopain:
if (mod == NAME_Electric)
{
if (pr_lightning() < 96)
{
justhit = true;
FState *painstate = target->FindState(NAME_Pain, mod);
if (painstate != NULL)
target->SetState(painstate);
}
else
{ // "electrocute" the target
target->renderflags |= RF_FULLBRIGHT;
if ((target->flags3 & MF3_ISMONSTER) && pr_lightning() < 128)
{
target->Howl ();
}
}
}
else
{
justhit = true;
FState *painstate = target->FindState(NAME_Pain, ((inflictor && inflictor->PainType != NAME_None) ? inflictor->PainType : mod));
if (painstate != NULL)
target->SetState(painstate);
if (mod == NAME_PoisonCloud)
{
if ((target->flags3 & MF3_ISMONSTER) && pr_poison() < 128)
{
target->Howl ();
}
}
}
}
}
//ALLOWPAIN and CAUSEPAIN can still trigger infighting, even if no pain state is worked out.
target->reactiontime = 0; // we're awake now...
if (source)
{
if (source == target->target)
{
target->threshold = BASETHRESHOLD;
if (target->state == target->SpawnState && target->SeeState != NULL)
{
target->SetState (target->SeeState);
}
}
else if (source != target->target && target->OkayToSwitchTarget (source))
{
// Target actor is not intent on another actor,
// so make him chase after source
// killough 2/15/98: remember last enemy, to prevent
// sleeping early; 2/21/98: Place priority on players
if (target->lastenemy == NULL ||
(target->lastenemy->player == NULL && target->TIDtoHate == 0) ||
target->lastenemy->health <= 0)
{
target->lastenemy = target->target; // remember last enemy - killough
}
target->target = source;
target->threshold = BASETHRESHOLD;
if (target->state == target->SpawnState && target->SeeState != NULL)
{
target->SetState (target->SeeState);
}
}
}
// killough 11/98: Don't attack a friend, unless hit by that friend.
if (justhit && (target->target == source || !target->target || !target->IsFriend(target->target)))
target->flags |= MF_JUSTHIT; // fight back!
if (invulpain) //Note that this takes into account all the cheats a player has, in terms of invulnerability.
{
return -1; //NOW we return -1!
}
return damage;
}