adding endermite (#5460)

* First Draft of adding endermite

* Update src/Mobs/Endermite.h

Co-authored-by: x12xx12x <44411062+12xx12@users.noreply.github.com>

* Adding Protocols + SpawnEgg

TODO: don't forget to put the endermite in core plugin for the summon
command

* Adding endermite to monster.ini

* Adding 5% change of spawning endermite when throwing enderpearl

* Spawn endermite at last position instead of Hit Position + .cache to .gitignore

* fixup! Spawn endermite at last position instead of Hit Position + .cache to .gitignore

* destroy endermite if 2 min, not if name is set

* Syntax

* Adding Enderman targeting endermite + fixing syntax

* Fixing compile error + return error [but crash on enderman spawn]

* Fix crash but enderman doesn't target

* Enderman targeting endermite finished

* checking style because i'm a noob at git...

* fixup! checking style because i'm a noob at git...

* Added endermite egg meta to docs

* Final touches

Removed unnecesary imports
fixed callback to run only in sight distance and actually check sigtlines

* Fixed error after not pulling branch

---------

Co-authored-by: x12xx12x <44411062+12xx12@users.noreply.github.com>
Co-authored-by: Debucquoy <debucqquoy.anthony@gmail.com>

.gitignore

@@ -46,6 +46,8 @@ GPUCache
 *.cbp
 ## KDevelop
 *.kdev*
+## Vim
+.cache/
 
 # world inside source
 ChunkWorx.ini

Server/Plugins/APIDump/APIDesc.lua

@@ -17849,6 +17849,10 @@ end
 				{
 					Notes = "A mask that indicates the bits of the metadata that specify the facing of redstone repeaters.",
 				},
+				E_META_SPAWN_EGG_ENDERMITE =
+				{
+					Notes = "",
+				},
 				E_META_SPAWN_EGG_WITHER_SKELETON =
 				{
 					Notes = ""

Server/monsters.ini

@@ -48,6 +48,13 @@ AttackRate=1.0
 MaxHealth=200
 SightDistance=25.0
 
+[Endermite]
+AttackDamage=2.0
+AttackRange=0.75
+AttackRate=1.0
+MaxHealth=8
+SightDistance=16.0
+
 [Enderman]
 AttackDamage=4.0
 AttackRange=1.0

src/BlockType.h

@@ -1130,6 +1130,7 @@ enum ENUM_ITEM_META : short
 	E_META_SPAWN_EGG_WITHER           = 64,
 	E_META_SPAWN_EGG_BAT              = 65,
 	E_META_SPAWN_EGG_WITCH            = 66,
+	E_META_SPAWN_EGG_ENDERMITE        = 67,
 	E_META_SPAWN_EGG_GUARDIAN         = 68,
 	E_META_SPAWN_EGG_PIG              = 90,
 	E_META_SPAWN_EGG_SHEEP            = 91,

src/Entities/Entity.cpp

@@ -494,6 +494,7 @@ bool cEntity::DoTakeDamage(TakeDamageInfo & a_TDI)
 					case mtSpider:
 					case mtCaveSpider:
 					case mtSilverfish:
+					case mtEndermite:
 					{
 						MagicalCriticalHit = true;
 						a_TDI.FinalDamage += 2.5f * BaneOfArthropodsLevel;

src/Entities/ThrownEnderPearlEntity.cpp

@@ -1,6 +1,8 @@
 
 #include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
 
+#include "FastRandom.h"
+#include "Mobs/MonsterTypes.h"
 #include "ThrownEnderPearlEntity.h"
 #include "Player.h"
 
@@ -56,11 +58,25 @@ void cThrownEnderPearlEntity::TeleportCreator(Vector3d a_HitPos)
 		return;
 	}
 
+
+
 	GetWorld()->FindAndDoWithPlayer(m_CreatorData.m_Name, [=](cPlayer & a_Entity)
 	{
+
+		auto & Random = GetRandomProvider();
+
+		// 5% chance to spawn an endermite
+		if (Random.RandBool(0.05))
+		{
+			Vector3d PlayerPosition = a_Entity.GetPosition();
+			m_World->SpawnMob(PlayerPosition.x, PlayerPosition.y, PlayerPosition.z, mtEndermite);
+		}
+
+
 		// Teleport the creator here, make them take 5 damage:
 		a_Entity.TeleportToCoords(a_HitPos.x, a_HitPos.y + 0.2, a_HitPos.z);
 		a_Entity.TakeDamage(dtEnderPearl, this, 5, 0);
+
 		return false;
 	});
 }

src/Items/ItemSpawnEgg.h

@@ -72,6 +72,7 @@ public:
 			case E_META_SPAWN_EGG_COW:             return mtCow;
 			case E_META_SPAWN_EGG_CREEPER:         return mtCreeper;
 			case E_META_SPAWN_EGG_ENDERMAN:        return mtEnderman;
+			case E_META_SPAWN_EGG_ENDERMITE:       return mtEndermite;
 			case E_META_SPAWN_EGG_GHAST:           return mtGhast;
 			case E_META_SPAWN_EGG_GUARDIAN:        return mtGuardian;
 			case E_META_SPAWN_EGG_HORSE:           return mtHorse;

src/Items/ItemThrowable.h

@@ -3,6 +3,9 @@
 
 #pragma once
 
+#include "ItemHandler.h"
+#include "Entities/ProjectileEntity.h"
+
 
 
 

src/Mobs/AggressiveMonster.cpp

@@ -3,9 +3,9 @@
 
 #include "AggressiveMonster.h"
 
-#include "../World.h"
-#include "../Entities/Player.h"
-#include "../LineBlockTracer.h"
+#include "LineBlockTracer.h"
+#include "World.h"
+#include "Entities/Player.h"
 
 
 
@@ -46,6 +46,61 @@ void cAggressiveMonster::EventSeePlayer(cPlayer * a_Player, cChunk & a_Chunk)
 
 
 
+cMonster * cAggressiveMonster::GetMonsterOfTypeInSight(eMonsterType a_MobType, unsigned int a_SightDistance)
+{
+
+	cMonster * FoundTarget = nullptr;
+	auto MinimumDistance = static_cast<double>(a_SightDistance * a_SightDistance);
+
+	class cCallback : public cBlockTracer::cCallbacks
+	{
+		public:
+		bool OnNextBlock(Vector3i a_BlockPos, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, eBlockFace a_EntryFace) override
+		{
+			return a_BlockType != E_BLOCK_AIR;
+		}
+	};
+
+	auto Callbacks = cCallback();
+	auto Tracer = cLineBlockTracer(*GetWorld(), Callbacks);
+
+	cEntityCallback Callback = [&](cEntity & a_Entity)
+	{
+		if (!a_Entity.IsMob())
+		{
+			return false;
+		}
+
+		auto & Other = dynamic_cast<cMonster &>(a_Entity);
+		if (Other.GetMobType() != a_MobType)
+		{
+			return false;
+		}
+
+		Vector3d MyHeadPosition = GetPosition().addedY(GetHeight());
+		Vector3d TargetPosition = Other.GetPosition().addedY(Other.GetHeight());
+		double TargetDistance = (MyHeadPosition - TargetPosition).SqrLength();
+
+		if (
+			(MinimumDistance > TargetDistance) &&
+			(TargetDistance < (a_SightDistance * a_SightDistance))
+		)
+		{
+			FoundTarget = & Other;
+			return true;
+		}
+		return false;
+	};
+
+	cBoundingBox CheckZone(GetPosition().addedXZ(-a_SightDistance, -a_SightDistance), GetPosition().addedXZ(a_SightDistance, a_SightDistance));
+	m_World->ForEachEntityInBox(CheckZone, Callback);
+	return FoundTarget;
+}
+
+
+
+
+
 void cAggressiveMonster::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
 {
 	Super::Tick(a_Dt, a_Chunk);

src/Mobs/AggressiveMonster.h

@@ -30,12 +30,18 @@ public:
 
 	virtual void EventSeePlayer(cPlayer * a_Player, cChunk & a_Chunk) override;
 
+	/**
+	* Check if a monster of certain type is in sight
+	*
+	* @param a_mobtype the mob type to find
+	* @param SightDistance max distance to check
+	*
+	* @return pointer to the mob found
+	*/
+	cMonster * GetMonsterOfTypeInSight(eMonsterType a_mobtype, unsigned int SightDistance=16);
+
 	/** Try to perform attack
 	returns true if attack was deemed successful (hit player, fired projectile, creeper exploded, etc.) even if it didn't actually do damage
 	return false if e.g. the mob is still in cooldown from a previous attack */
 	virtual bool Attack(std::chrono::milliseconds a_Dt);
 } ;
-
-
-
-

src/Mobs/CMakeLists.txt

@@ -9,6 +9,7 @@ target_sources(
 	Cow.cpp
 	Creeper.cpp
 	EnderDragon.cpp
+	Endermite.cpp
 	Enderman.cpp
 	Ghast.cpp
 	Giant.cpp
@@ -49,6 +50,7 @@ target_sources(
 	Cow.h
 	Creeper.h
 	EnderDragon.h
+	Endermite.h
 	Enderman.h
 	Ghast.h
 	Giant.h

src/Mobs/Enderman.cpp

@@ -149,6 +149,29 @@ void cEnderman::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
 		return;
 	}
 
+	if (m_EMState != CHASING)
+	{
+		cMonster * EndermiteFound = GetMonsterOfTypeInSight(mtEndermite, 64);
+		if (EndermiteFound != nullptr)
+		{
+			SetTarget(EndermiteFound);
+			m_EMState = CHASING;
+			m_bIsScreaming = true;
+		}
+	}
+	else
+	{
+		const auto Target = GetTarget();
+		if (Target != nullptr)
+		{
+			if (!Target->IsTicking())
+			{
+				m_EMState = IDLE;
+				m_bIsScreaming = false;
+			}
+		}
+	}
+
 	PREPARE_REL_AND_CHUNK(GetPosition().Floor(), a_Chunk);
 	if (!RelSuccess)
 	{

src/Mobs/Endermite.cpp

@@ -0,0 +1,41 @@
+
+#include "Globals.h"
+
+#include "Endermite.h"
+
+#include "../World.h"
+#include "../Chunk.h"
+#include "../Blocks/BlockHandler.h"
+#include "../Blocks/BlockInfested.h"
+
+
+
+
+
+cEndermite::cEndermite() :
+	Super("Endermite", mtEndermite, "entity.endermite.hurt", "entity.endermite.death", "entity.endermite.ambient", 0.4f, 0.3f),
+	m_Timer(0),
+	m_Lifetime(2 * 1000 * 60)  // 2 minutes (2 * 1000 (mili to sec) * 60 (sec to min) * 2 because tick = 0.5 sec)
+{
+}
+
+
+
+
+
+void cEndermite::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
+{
+	Super::Tick(a_Dt, a_Chunk);
+
+	// Not destroying the endermite if a name is set
+	if (m_CustomName.empty())
+	{
+		m_Timer += a_Dt;
+		// Destroy the endermite after 2 minutes
+		if (m_Timer > m_Lifetime)
+		{
+			Destroy();
+		}
+
+	}
+}

src/Mobs/Endermite.h

@@ -0,0 +1,24 @@
+
+#pragma once
+
+#include "AggressiveMonster.h"
+
+
+
+class cEndermite:
+	public cAggressiveMonster
+{
+	using Super = cAggressiveMonster;
+
+	// Endermite should despawn in two minutes
+	std::chrono::milliseconds m_Timer;
+	std::chrono::milliseconds m_Lifetime;
+
+public:
+
+	cEndermite();
+
+	CLASS_PROTODEF(cEndermite)
+
+	void Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk) override;
+} ;

src/Mobs/IncludeAllMonsters.h

@@ -5,6 +5,7 @@
 #include "Cow.h"
 #include "Creeper.h"
 #include "Enderman.h"
+#include "Endermite.h"
 #include "EnderDragon.h"
 #include "Ghast.h"
 #include "Giant.h"

src/Mobs/Monster.cpp

@@ -45,6 +45,7 @@ static const struct
 	{mtCow,            "cow",            "Cow",            "cow"},
 	{mtCreeper,        "creeper",        "Creeper",        "creeper"},
 	{mtEnderman,       "enderman",       "Enderman",       "enderman"},
+	{mtEndermite,      "endermite",      "Endermite",      "endermite"},
 	{mtEnderDragon,    "enderdragon",    "EnderDragon",    "ender_dragon"},
 	{mtGhast,          "ghast",          "Ghast",          "ghast"},
 	{mtGiant,          "giant",          "Giant",          "giant"},
@@ -653,6 +654,11 @@ void cMonster::KilledBy(TakeDamageInfo & a_TDI)
 			Reward = GetRandomProvider().RandInt(6, 8);
 			break;
 		}
+		case mtEndermite:
+		{
+			Reward = 3;
+			break;
+		}
 		case mtBlaze:
 		{
 			Reward = 10;
@@ -1286,6 +1292,7 @@ std::unique_ptr<cMonster> cMonster::NewMonsterFromType(eMonsterType a_MobType)
 		case mtCow:            return std::make_unique<cCow>();
 		case mtCreeper:        return std::make_unique<cCreeper>();
 		case mtEnderDragon:    return std::make_unique<cEnderDragon>();
+		case mtEndermite:      return std::make_unique<cEndermite>();
 		case mtEnderman:       return std::make_unique<cEnderman>();
 		case mtGhast:          return std::make_unique<cGhast>();
 		case mtGiant:          return std::make_unique<cGiant>();

src/Protocol/Protocol_1_10.cpp

@@ -937,8 +937,6 @@ void cProtocol_1_10_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_
 		}
 		case mtCat:
 
-		case mtEndermite:
-
 		case mtPolarBear:
 
 		case mtShulker:
@@ -955,6 +953,7 @@ void cProtocol_1_10_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_
 
 		case mtCaveSpider:
 		case mtEnderDragon:
+		case mtEndermite:
 		case mtGiant:
 		case mtIronGolem:
 		case mtMooshroom:

src/Protocol/Protocol_1_11.cpp

@@ -1230,8 +1230,6 @@ void cProtocol_1_11_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_
 		case mtDonkey:
 		case mtMule:
 
-		case mtEndermite:
-
 		case mtEvoker:
 
 		case mtLlama:
@@ -1254,6 +1252,7 @@ void cProtocol_1_11_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_
 
 		case mtCaveSpider:
 		case mtEnderDragon:
+		case mtEndermite:
 		case mtGiant:
 		case mtIronGolem:
 		case mtMooshroom:

src/Protocol/Protocol_1_12.cpp

@@ -935,8 +935,6 @@ void cProtocol_1_12::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mo
 		case mtDonkey:
 		case mtMule:
 
-		case mtEndermite:
-
 		case mtEvoker:
 
 		case mtHusk:
@@ -965,6 +963,7 @@ void cProtocol_1_12::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mo
 			break;
 		}
 
+		case mtEndermite:
 		case mtGiant:
 		case mtSilverfish:
 		case mtSquid:

src/Protocol/Protocol_1_13.cpp

@@ -1299,8 +1299,6 @@ void cProtocol_1_13::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mo
 
 		case mtDrowned:
 
-		case mtEndermite:
-
 		case mtEvoker:
 
 		case mtIllusioner:
@@ -1348,6 +1346,7 @@ void cProtocol_1_13::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mo
 			break;
 		}
 
+		case mtEndermite:
 		case mtGiant:
 		case mtSilverfish:
 		case mtSquid:

src/Protocol/Protocol_1_14.cpp

@@ -1602,8 +1602,6 @@ void cProtocol_1_14::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mo
 
 		case mtDrowned:
 
-		case mtEndermite:
-
 		case mtEvoker:
 
 		case mtIllusioner:
@@ -1651,6 +1649,7 @@ void cProtocol_1_14::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mo
 			break;
 		}
 
+		case mtEndermite:
 		case mtGiant:
 		case mtSilverfish:
 		case mtSquid:

src/Protocol/Protocol_1_8.cpp

@@ -3761,7 +3761,6 @@ void cProtocol_1_8_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_M
 
 		case mtCat:
 
-		case mtEndermite:
 
 		case mtDonkey:
 		case mtMule:
@@ -3779,6 +3778,7 @@ void cProtocol_1_8_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_M
 		case mtIronGolem:
 		case mtMooshroom:
 		case mtSilverfish:
+		case mtEndermite:
 		case mtSnowGolem:
 		case mtSpider:
 		case mtSquid:

src/Protocol/Protocol_1_9.cpp

@@ -2318,8 +2318,6 @@ void cProtocol_1_9_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_M
 
 		case mtDonkey:
 
-		case mtEndermite:
-
 		case mtMule:
 
 		case mtStray:
@@ -2336,6 +2334,7 @@ void cProtocol_1_9_0::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_M
 
 		case mtCaveSpider:
 		case mtEnderDragon:
+		case mtEndermite:
 		case mtGiant:
 		case mtIronGolem:
 		case mtMooshroom: