Add `AHealthComponent` to AcediaCore

sources/Gameplay/BaseClasses/Frontend/Health/AHealthComponent.uc

@@ -0,0 +1,26 @@
+/**
+ *  Subset of functionality for dealing with everything related to pawns'
+ *  health.
+ *      Copyright 2022 Anton Tarasenko
+ *------------------------------------------------------------------------------
+ * This file is part of Acedia.
+ *
+ * Acedia 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, version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Acedia 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 Acedia.  If not, see <https://www.gnu.org/licenses/>.
+ */
+class AHealthComponent extends AcediaObject
+    abstract;
+
+defaultproperties
+{
+}

sources/Gameplay/BaseClasses/KillingFloor/Frontend/KFFrontend.uc

@@ -23,18 +23,26 @@ class KFFrontend extends BaseFrontend
 var private config class<ATradingComponent> tradingClass;
 var public ATradingComponent                trading;
 
+var private config class<AHealthComponent>  healthClass;
+var public AHealthComponent                 health;
+
 protected function Constructor()
 {
     super.Constructor();
     if (tradingClass != none) {
         trading = ATradingComponent(_.memory.Allocate(tradingClass));
     }
+    if (healthClass != none) {
+        health = AHealthComponent(_.memory.Allocate(healthClass));
+    }
 }
 
 protected function Finalizer()
 {
     _.memory.Free(trading);
+    _.memory.Free(health);
     trading = none;
+    health  = none;
 }
 
 /**
@@ -53,5 +61,6 @@ public function EItemTemplateInfo GetItemTemplateInfo(BaseText templateName)
 
 defaultproperties
 {
-    tradingClass = none
+    tradingClass    = none
+    healthClass     = none
 }

sources/Gameplay/KF1Frontend/Health/DummyDamageTypes/Dummy_DamTypeVomit.uc

@@ -0,0 +1,26 @@
+/**
+ *  Dummy replacer for bloat's `DamTypeVomit` damage type to avoid TWI's moronic
+ *  "This stuff cuts thru all the B.S" bullshit.
+ *      Copyright 2022 Anton Tarasenko
+ *------------------------------------------------------------------------------
+ * This file is part of Acedia.
+ *
+ * Acedia 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, version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Acedia 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 Acedia.  If not, see <https://www.gnu.org/licenses/>.
+ */
+class Dummy_DamTypeVomit extends DamTypeVomit
+    abstract;
+
+defaultproperties
+{
+}

sources/Gameplay/KF1Frontend/Health/DummyDamageTypes/Dummy_SirenScreamDamage.uc

@@ -0,0 +1,26 @@
+/**
+ *  Dummy replacer for bloat's `SirenScreamDamage` damage type to avoid TWI's
+ *  moronic "This stuff cuts thru all the B.S" bullshit.
+ *      Copyright 2022 Anton Tarasenko
+ *------------------------------------------------------------------------------
+ * This file is part of Acedia.
+ *
+ * Acedia 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, version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Acedia 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 Acedia.  If not, see <https://www.gnu.org/licenses/>.
+ */
+class Dummy_SirenScreamDamage extends SirenScreamDamage
+    abstract;
+
+defaultproperties
+{
+}

sources/Gameplay/KF1Frontend/Health/KF1_HealthComponent.uc

@@ -0,0 +1,187 @@
+/**
+ *  `AHealthComponent`'s implementation for `KF1_Frontend`.
+ *      Copyright 2022 Anton Tarasenko
+ *------------------------------------------------------------------------------
+ * This file is part of Acedia.
+ *
+ * Acedia 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, version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Acedia 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 Acedia.  If not, see <https://www.gnu.org/licenses/>.
+ */
+class KF1_HealthComponent extends AHealthComponent
+    dependson(ConnectionService)
+    config(AcediaSystem);
+
+var private const config bool replaceBloatAndSirenDamageTypes;
+
+var private LoggerAPI.Definition infoReplacingDamageTypes, errNoServerLevelCore;
+var private LoggerAPI.Definition infoRestoringReplacingDamageTypes;
+
+public function PresudoConstructor()
+{
+    local LevelCore core;
+    _.unreal.gameRules.OnNetDamage(self).connect = OnNetDamageHandler;
+    if (!replaceBloatAndSirenDamageTypes) {
+        return;
+    }
+    _.logger.Auto(infoReplacingDamageTypes);
+    core = class'ServerLevelCore'.static.GetInstance();
+    if (core != none)
+    {
+        ReplaceDamageTypes(core);
+        _.unreal.gameRules.OnScoreKill(self).connect = UpdateBileAchievement;
+        core.OnShutdown(self).connect = RestoreDamageTypes;
+    }
+    else {
+        _.logger.Auto(errNoServerLevelCore);
+    }
+}
+
+protected function Finalizer()
+{
+    _.unreal.gameRules.OnNetDamage(self).Disconnect();
+    if (replaceBloatAndSirenDamageTypes) {
+        RestoreDamageTypes();
+    }
+}
+
+private final function ReplaceDamageTypes(LevelCore core)
+{
+    local KFBloatVomit      nextVomit;
+    local ZombieSirenBase   nextSiren;
+
+    class'KFBloatVomit'.default.myDamageType = class'Dummy_DamTypeVomit';
+    class'ZombieSirenBase'.default.screamDamageType =
+        class'Dummy_SirenScreamDamage';
+    class'ZombieSirenBase'.default.screamDamageType =
+        class'Dummy_SirenScreamDamage';
+    class'ZombieSiren_STANDARD'.default.screamDamageType =
+        class'Dummy_SirenScreamDamage';
+    class'ZombieSiren_HALLOWEEN'.default.screamDamageType =
+        class'Dummy_SirenScreamDamage';
+    class'ZombieSiren_XMas'.default.screamDamageType =
+        class'Dummy_SirenScreamDamage';
+    class'ZombieSiren_CIRCUS'.default.screamDamageType =
+        class'Dummy_SirenScreamDamage';
+    foreach core.AllActors(class'KFBloatVomit', nextVomit) {
+        nextVomit.myDamageType = class'Dummy_DamTypeVomit';
+    }
+    foreach core.AllActors(class'ZombieSirenBase', nextSiren) {
+        nextSiren.screamDamageType = class'Dummy_SirenScreamDamage';
+    }
+}
+
+private final function RestoreDamageTypes()
+{
+    _.logger.Auto(infoRestoringReplacingDamageTypes);
+    class'KFBloatVomit'.default.myDamageType = class'DamTypeVomit';
+    class'ZombieSirenBase'.default.screamDamageType = class'SirenScreamDamage';
+    class'ZombieSirenBase'.default.screamDamageType = class'SirenScreamDamage';
+    class'ZombieSiren_STANDARD'.default.screamDamageType =
+        class'SirenScreamDamage';
+    class'ZombieSiren_HALLOWEEN'.default.screamDamageType =
+        class'SirenScreamDamage';
+    class'ZombieSiren_XMas'.default.screamDamageType = class'SirenScreamDamage';
+    class'ZombieSiren_CIRCUS'.default.screamDamageType =
+        class'SirenScreamDamage';
+}
+
+private function int OnNetDamageHandler(
+    int                 originalDamage,
+    int                 damage,
+    Pawn                injured,
+    Pawn                instigatedBy,
+    Vector              hitLocation,
+    out Vector          momentum,
+    class<DamageType>   damageType)
+{
+    if (damageType == class'Dummy_DamTypeVomit') {
+        damage = ReapplyNativeBileAdjustments(originalDamage, damage, injured);
+    }
+    if (damageType == class'Dummy_SirenScreamDamage') {
+        damage = ReapplyNativeScreamAdjustments(damage, injured, hitLocation);
+    }
+    return damage;
+}
+
+private function int ReapplyNativeBileAdjustments(
+    int     originalDamage,
+    int     damage,
+    Pawn    injured)
+{
+    local KFPlayerReplicationInfo kfPRI;
+
+    if (ZombieBloatBase(injured) != none) {
+        return 0;
+    }
+    if (ZombieFleshpoundBase(injured) != none) {
+        return 0;
+    }
+    if (injured != none && injured.controller != none)
+    {
+        kfPRI = KFPlayerReplicationInfo(
+            injured.controller.playerReplicationInfo);
+    }
+    return damage;
+}
+
+private function int ReapplyNativeScreamAdjustments(
+    int     damage,
+    Pawn    injured,
+    Vector  hitLocation)
+{
+    local KFPawn injuredPawn;
+
+    injuredPawn = KFPawn(injured);
+    if (injuredPawn != none)
+    {
+        //  TODO: `PlayHit()` is not informed about siren's damage!!!
+        //  TODO: Neither are bloody projectiles!
+        injuredPawn.lastHitDamType = class'SirenScreamDamage';
+    }
+    return damage;
+}
+
+private function UpdateBileAchievement(Controller killer, Controller killed)
+{
+    local int                                   i;
+    local KFMonster                             killedMonster;
+    local ConnectionService                     service;
+    local KFSteamStatsAndAchievements           kfSteamStats;
+    local array<ConnectionService.Connection>   activeConnections;
+
+    killedMonster = KFMonster(killed.pawn);
+    if (killedMonster == none)                                          return;
+    if (killedMonster.lastDamagedByType != class'Dummy_DamTypeVomit')   return;
+    service = ConnectionService(class'ConnectionService'.static.Require());
+    if (service == none)                                                return;
+
+    activeConnections = service.GetActiveConnections();
+    for (i = 0; i < activeConnections.length; i += 1)
+    {
+        kfSteamStats = KFSteamStatsAndAchievements(activeConnections[i]
+            .controllerReference
+            .steamStatsAndAchievements);
+        if (kfSteamStats != none) {
+            kfSteamStats.KilledEnemyWithBloatAcid();
+        }
+    }
+}
+
+
+defaultproperties
+{
+    replaceBloatAndSirenDamageTypes = true
+    infoReplacingDamageTypes            = (l=LOG_Info,m="Replacing bloat's and siren's damage types to dummy ones.")
+    infoRestoringReplacingDamageTypes   = (l=LOG_Info,m="Restoring bloat and siren's damage types to their original values.")
+    errNoServerLevelCore                = (l=LOG_Error,m="Server level core is missing. Either this isn't a server or Acedia was wrongly initialized. Bloat and siren damage type will not be replaced.")
+}

sources/Gameplay/KF1Frontend/KF1_Frontend.uc

@@ -2,7 +2,7 @@
  *  Frontend implementation for classic `KFGameType` that changes as little as
  *  possible and only on request from another mod, otherwise not altering
  *  gameplay at all.
- *      Copyright 2021 Anton Tarasenko
+ *      Copyright 2021-2022 Anton Tarasenko
  *------------------------------------------------------------------------------
  * This file is part of Acedia.
  *
@@ -35,4 +35,5 @@ defaultproperties
 {
     templatesClass  = class'KF1_TemplatesComponent'
     tradingClass    = class'KF1_TradingComponent'
+    healthClass     = class'KF1_HealthComponent'
 }