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Fix explosion knockback issues and tweak knockback strength (#4590)

This commit is contained in:
peterbell10 2020-04-02 08:29:42 +01:00 committed by GitHub
parent 25d5e1bfe1
commit 59e38d1a46
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 21 additions and 22 deletions
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26
src/ChunkMap.cpp
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@ -1313,18 +1313,19 @@ void cChunkMap::DoExplosionAt(double a_ExplosionSize, double a_BlockX, double a_
a_Entity.TakeDamage(dtExplosion, nullptr, static_cast<int>((1 / std::max(1.0, DistanceFromExplosion.Length())) * 8 * ExplosionSizeInt), 0);
}
double Length = DistanceFromExplosion.Length();
if (Length <= ExplosionSizeInt) // Entity is impacted by explosion
float EntityExposure = a_Entity.GetExplosionExposureRate(ExplosionPos, static_cast<float>(a_ExplosionSize));
// Exposure reduced by armor
EntityExposure = EntityExposure * (1.0f - a_Entity.GetEnchantmentBlastKnockbackReduction());
auto Impact = std::pow(std::max(0.2, DistanceFromExplosion.Length()), -1);
Impact *= EntityExposure * ExplosionSizeInt * 6.0;
if (Impact > 0.0)
{
float EntityExposure = a_Entity.GetExplosionExposureRate(ExplosionPos, static_cast<float>(a_ExplosionSize));
// Exposure reduced by armor
EntityExposure = EntityExposure * (1.0f - a_Entity.GetEnchantmentBlastKnockbackReduction());
double Impact = (1 - ((Length / ExplosionSizeInt) / 2)) * EntityExposure;
DistanceFromExplosion.Normalize();
DistanceFromExplosion *= Impact;
DistanceFromExplosion *= Vector3d{Impact, 0.0, Impact};
DistanceFromExplosion.y += 0.3 * Impact;
a_Entity.SetSpeed(DistanceFromExplosion);
}
@ -2315,8 +2316,3 @@ void cChunkMap::DelChunkStay(cChunkStay & a_ChunkStay)
} // for itr - Chunks[]
a_ChunkStay.OnDisabled();
}

2
src/Entities/Player.cpp
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@ -3080,7 +3080,7 @@ float cPlayer::GetExplosionExposureRate(Vector3d a_ExplosionPosition, float a_Ex
return 0; // No impact from explosion
}
return super::GetExplosionExposureRate(a_ExplosionPosition, a_ExlosionPower);
return super::GetExplosionExposureRate(a_ExplosionPosition, a_ExlosionPower) / 30.0f;
}

6
src/Entities/Player.h
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@ -581,6 +581,9 @@ public:
Otherwise it returns the dig speed (float GetDigSpeed(BLOCKTYPE a_Block)) divided by the block hardness (cBlockInfo::GetHardness(BLOCKTYPE a_Block)) divided by 30 if the player can harvest the block and divided by 100 if he can't. */
float GetPlayerRelativeBlockHardness(BLOCKTYPE a_Block);
/** get player explosion exposure rate */
virtual float GetExplosionExposureRate(Vector3d a_ExplosionPosition, float a_ExlosionPower) override;
protected:
typedef std::vector<std::vector<AString> > AStringVectorVector;
@ -759,9 +762,6 @@ protected:
/** Returns the filename for the player data based on the UUID given.
This can be used both for online and offline UUIDs. */
AString GetUUIDFileName(const cUUID & a_UUID);
/** get player explosion exposure rate */
virtual float GetExplosionExposureRate(Vector3d a_ExplosionPosition, float a_ExlosionPower) override;
private:
/** Pins the player to a_Location until Unfreeze() is called.

9
src/World.cpp
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@ -1417,17 +1417,20 @@ void cWorld::DoExplosionAt(double a_ExplosionSize, double a_BlockX, double a_Blo
BroadcastSoundEffect("entity.generic.explode", Vector3d(a_BlockX, a_BlockY, a_BlockZ), 4.0f, SoundPitchMultiplier * 0.7f);
Vector3d ExplosionPos(a_BlockX, a_BlockY, a_BlockZ);
{
cCSLock Lock(m_CSPlayers);
for (cPlayerList::iterator itr = m_Players.begin(); itr != m_Players.end(); ++itr)
for (auto Player : m_Players)
{
cClientHandle * ch = (*itr)->GetClientHandle();
cClientHandle * ch = Player->GetClientHandle();
if (ch == nullptr)
{
continue;
}
ch->SendExplosion(a_BlockX, a_BlockY, a_BlockZ, static_cast<float>(a_ExplosionSize), BlocksAffected, (*itr)->GetSpeed());
bool InRange = (Player->GetExplosionExposureRate(ExplosionPos, static_cast<float>(a_ExplosionSize)) > 0);
auto Speed = InRange ? Player->GetSpeed() : Vector3d{};
ch->SendExplosion(a_BlockX, a_BlockY, a_BlockZ, static_cast<float>(a_ExplosionSize), BlocksAffected, Speed);
}
}