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Adding more customize options to mob spawners and improving the way to look for surrounding entities (#4955)

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* added nearly any customize option

* fixed unnecessary diff
added comments

* removed unnecessary const qualifier

* fixed build

* changed to ForEachEntityInBox

* added docs

* updated lua api description

* checkstyle

* added changes suggested by @peterbell10
And now the player may break the server by setting ridiculous ranges

* updated docs
changed cast to static cast

* fixed clang

* fixed clang on WSSAnvil.cpp

Co-authored-by: 12xx12 <12xx12100@gmail.com>
This commit is contained in:
12xx12
2020-10-10 21:31:44 +02:00
committed by GitHub
parent b0b1ccddd1
commit c0711407e9
5 changed files with 241 additions and 87 deletions
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92
src/BlockEntities/MobSpawnerEntity.cpp
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@@ -33,6 +33,12 @@ void cMobSpawnerEntity::CopyFrom(const cBlockEntity & a_Src)
m_Entity = src.m_Entity;
m_IsActive = src.m_IsActive;
m_SpawnDelay = src.m_SpawnDelay;
m_SpawnCount = src.m_SpawnCount;
m_SpawnRange = src.m_SpawnRange;
m_MinSpawnDelay = src.m_MinSpawnDelay;
m_MaxSpawnDelay = src.m_MaxSpawnDelay;
m_MaxNearbyEntities = src.m_MaxNearbyEntities;
m_RequiredPlayerRange = src.m_RequiredPlayerRange;
}
@@ -114,7 +120,7 @@ bool cMobSpawnerEntity::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
void cMobSpawnerEntity::ResetTimer(void)
{
m_SpawnDelay = GetRandomProvider().RandInt<short>(200, 800);
m_SpawnDelay = GetRandomProvider().RandInt<short>(m_MinSpawnDelay, m_MaxSpawnDelay);
m_World->BroadcastBlockEntity(GetPos());
}
@@ -125,7 +131,7 @@ void cMobSpawnerEntity::ResetTimer(void)
void cMobSpawnerEntity::SpawnEntity(void)
{
auto NearbyEntities = GetNearbyMonsterNum(m_Entity);
if (NearbyEntities >= 6)
if (NearbyEntities >= m_MaxNearbyEntities)
{
ResetTimer();
return;
@@ -136,18 +142,18 @@ void cMobSpawnerEntity::SpawnEntity(void)
auto & Random = GetRandomProvider();
bool HaveSpawnedEntity = false;
for (size_t i = 0; i < 4; i++)
for (short I = 0; I < m_SpawnCount; I++)
{
if (NearbyEntities >= 6)
if (NearbyEntities >= m_MaxNearbyEntities)
{
break;
}
auto SpawnRelPos(GetRelPos());
SpawnRelPos += Vector3i(
static_cast<int>((Random.RandReal<double>() - Random.RandReal<double>()) * 4.0),
static_cast<int>((Random.RandReal<double>() - Random.RandReal<double>()) * static_cast<double>(m_SpawnRange)),
Random.RandInt(-1, 1),
static_cast<int>((Random.RandReal<double>() - Random.RandReal<double>()) * 4.0)
static_cast<int>((Random.RandReal<double>() - Random.RandReal<double>()) * static_cast<double>(m_SpawnRange))
);
auto Chunk = a_Chunk.GetRelNeighborChunkAdjustCoords(SpawnRelPos);
@@ -191,39 +197,24 @@ void cMobSpawnerEntity::SpawnEntity(void)
int cMobSpawnerEntity::GetNearbyPlayersNum(void)
{
auto SpawnerPos = Vector3d(0.5, 0.5, 0.5) + m_Pos;
int NumPlayers = 0;
class cCallback : public cChunkDataCallback
auto Callback = [&] (cEntity & a_Entity)
{
public:
cCallback(Vector3d a_SpawnerPos, int & a_NumPlayers) :
m_SpawnerPos(a_SpawnerPos),
m_NumPlayers(a_NumPlayers)
if (!a_Entity.IsPlayer())
{
return false;
}
virtual void Entity(cEntity * a_Entity) override
if ((m_Pos - a_Entity.GetPosition()).Length() <= m_RequiredPlayerRange)
{
if (!a_Entity->IsPlayer())
{
return;
}
if ((m_SpawnerPos - a_Entity->GetPosition()).Length() <= 16)
{
m_NumPlayers++;
}
NumPlayers++;
}
return false;
};
protected:
Vector3d m_SpawnerPos;
int & m_NumPlayers;
} Callback(SpawnerPos, NumPlayers);
auto PlayerBoundingBox = cBoundingBox(Vector3d(m_Pos.x, m_Pos.y - m_RequiredPlayerRange, m_Pos.z), m_RequiredPlayerRange, m_RequiredPlayerRange * 2);
int ChunkX = GetChunkX();
int ChunkZ = GetChunkZ();
m_World->ForEachChunkInRect(ChunkX - 1, ChunkX + 1, ChunkZ - 1, ChunkZ + 1, Callback);
m_World->ForEachEntityInBox(PlayerBoundingBox, Callback);
return NumPlayers;
}
@@ -234,47 +225,26 @@ int cMobSpawnerEntity::GetNearbyPlayersNum(void)
int cMobSpawnerEntity::GetNearbyMonsterNum(eMonsterType a_EntityType)
{
auto SpawnerPos = Vector3d(0.5, 0.5, 0.5) + m_Pos;
int NumEntities = 0;
class cCallback : public cChunkDataCallback
auto Callback = [&] (cEntity & a_Entity)
{
public:
cCallback(Vector3d a_SpawnerPos, eMonsterType a_CallbackEntityType, int & a_NumEntities) :
m_SpawnerPos(a_SpawnerPos),
m_EntityType(a_CallbackEntityType),
m_NumEntities(a_NumEntities)
if (!a_Entity.IsMob())
{
return false;
}
virtual void Entity(cEntity * a_Entity) override
auto & Mob = static_cast<cMonster &>(a_Entity);
if (Mob.GetMobType() == m_Entity)
{
if (!a_Entity->IsMob())
{
return;
}
cMonster * Mob = static_cast<cMonster *>(a_Entity);
if (Mob->GetMobType() != m_EntityType)
{
return;
}
if ((Diff(m_SpawnerPos.x, a_Entity->GetPosX()) <= 8.0) && (Diff(m_SpawnerPos.y, a_Entity->GetPosY()) <= 4.0) && (Diff(m_SpawnerPos.z, a_Entity->GetPosZ()) <= 8.0))
{
m_NumEntities++;
}
NumEntities++;
}
return false;
};
protected:
Vector3d m_SpawnerPos;
eMonsterType m_EntityType;
int & m_NumEntities;
} Callback(SpawnerPos, a_EntityType, NumEntities);
auto EntityBoundingBox = cBoundingBox(Vector3d(m_Pos.x, m_Pos.y - 4, m_Pos.z), m_SpawnRange, 8);
int ChunkX = GetChunkX();
int ChunkZ = GetChunkZ();
m_World->ForEachChunkInRect(ChunkX - 1, ChunkX + 1, ChunkZ - 1, ChunkZ + 1, Callback);
m_World->ForEachEntityInBox(EntityBoundingBox, Callback);
return NumEntities;
}