#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#include "Player.h"
#include "ArrowEntity.h"
#include "../Chunk.h"
#include "FastRandom.h"
cArrowEntity::cArrowEntity(cEntity * a_Creator, double a_X, double a_Y, double a_Z, const Vector3d & a_Speed) :
super(pkArrow, a_Creator, a_X, a_Y, a_Z, 0.5, 0.5),
m_PickupState(psNoPickup),
m_DamageCoeff(2),
m_IsCritical(false),
m_Timer(0),
m_HitGroundTimer(0),
m_HasTeleported(false),
m_bIsCollected(false),
m_Creator(a_Creator),
m_HitBlockPos(Vector3i(0, 0, 0))
{
SetSpeed(a_Speed);
SetMass(0.1);
SetYawFromSpeed();
SetPitchFromSpeed();
LOGD("Created arrow %d with speed {%.02f, %.02f, %.02f} and rot {%.02f, %.02f}",
m_UniqueID, GetSpeedX(), GetSpeedY(), GetSpeedZ(),
GetYaw(), GetPitch()
);
}
cArrowEntity::cArrowEntity(cPlayer & a_Player, double a_Force) :
super(pkArrow, &a_Player, a_Player.GetThrowStartPos(), a_Player.GetThrowSpeed(a_Force * 1.5 * 20), 0.5, 0.5),
m_PickupState(psInSurvivalOrCreative),
m_DamageCoeff(2),
m_IsCritical((a_Force >= 1)),
m_Timer(0),
m_HitGroundTimer(0),
m_HasTeleported(false),
m_bIsCollected(false),
m_Creator(&a_Player),
m_HitBlockPos(0, 0, 0)
{
if (a_Player.IsGameModeCreative())
{
m_PickupState = psInCreative;
}
}
bool cArrowEntity::CanPickup(const cPlayer & a_Player) const
{
switch (m_PickupState)
{
case psNoPickup: return false;
case psInSurvivalOrCreative: return (a_Player.IsGameModeSurvival() || a_Player.IsGameModeCreative());
case psInCreative: return a_Player.IsGameModeCreative();
}
ASSERT(!"Unhandled pickup state");
return false;
}
void cArrowEntity::OnHitSolidBlock(const Vector3d & a_HitPos, eBlockFace a_HitFace)
{
if (GetSpeed().EqualsEps(Vector3d(0, 0, 0), 0.0000001))
{
SetSpeed(GetLookVector().NormalizeCopy() * 0.1); // Ensure that no division by zero happens later
}
Vector3d Hit = a_HitPos;
Vector3d SinkMovement = (GetSpeed() / 1000);
Hit += SinkMovement * (0.0005 / SinkMovement.Length()); // Make arrow sink into block a centimetre so it lodges (but not to far so it goes black clientside)
super::OnHitSolidBlock(Hit, a_HitFace);
Vector3i BlockHit = Hit.Floor();
int X = BlockHit.x, Y = BlockHit.y, Z = BlockHit.z;
m_HitBlockPos = Vector3i(X, Y, Z);
// Broadcast arrow hit sound
m_World->BroadcastSoundEffect("random.bowhit", (double)X, (double)Y, (double)Z, 0.5f, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
if ((m_World->GetBlock(Hit) == E_BLOCK_TNT) && (m_TicksLeftBurning > 0))
{
m_World->SetBlock(X, Y, Z, E_BLOCK_AIR, 0);
m_World->SpawnPrimedTNT(X, Y, Z);
}
}
void cArrowEntity::OnHitEntity(cEntity & a_EntityHit, const Vector3d & a_HitPos)
{
int Damage = (int)(GetSpeed().Length() / 20 * m_DamageCoeff + 0.5);
if (m_IsCritical)
{
Damage += m_World->GetTickRandomNumber(Damage / 2 + 2);
}
int PowerLevel = m_Creator->GetEquippedWeapon().m_Enchantments.GetLevel(cEnchantments::enchPower);
if (PowerLevel > 0)
{
int ExtraDamage = 0.25 * (PowerLevel + 1);
Damage += ceil(ExtraDamage);
}
int KnockbackAmount = 1;
int PunchLevel = m_Creator->GetEquippedWeapon().m_Enchantments.GetLevel(cEnchantments::enchPunch);
if (PunchLevel > 0)
{
Vector3f LookVector = m_Creator->GetLookVector();
Vector3f FinalSpeed = Vector3f(0, 0, 0);
switch (PunchLevel)
{
case 1: FinalSpeed = LookVector * Vector3d(5, 0.3, 5);
case 2: FinalSpeed = LookVector * Vector3d(8, 0.3, 8);
default: break;
}
a_EntityHit.SetSpeed(FinalSpeed);
}
a_EntityHit.TakeDamage(dtRangedAttack, this, Damage, KnockbackAmount);
if ((m_TicksLeftBurning > 0 && !a_EntityHit.IsSubmerged() && !a_EntityHit.IsSwimming()))
{
a_EntityHit.StartBurning(100);
}
// Broadcast successful hit sound
GetWorld()->BroadcastSoundEffect("random.successful_hit", GetPosX(), GetPosY(), GetPosZ(), 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
Destroy();
}
void cArrowEntity::CollectedBy(cPlayer * a_Dest)
{
if (m_IsInGround && !m_bIsCollected && CanPickup(*a_Dest))
{
// Do not add the arrow to the inventory when the player is in creative:
if (!a_Dest->IsGameModeCreative())
{
int NumAdded = a_Dest->GetInventory().AddItem(E_ITEM_ARROW);
if (NumAdded == 0)
{
// No space in the inventory
return;
}
}
GetWorld()->BroadcastCollectEntity(*this, *a_Dest);
GetWorld()->BroadcastSoundEffect("random.pop", GetPosX(), GetPosY(), GetPosZ(), 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
m_bIsCollected = true;
}
}
void cArrowEntity::Tick(float a_Dt, cChunk & a_Chunk)
{
super::Tick(a_Dt, a_Chunk);
m_Timer += a_Dt;
if (m_bIsCollected)
{
if (m_Timer > 500.f) // 0.5 seconds
{
Destroy();
return;
}
}
else if (m_Timer > 1000 * 60 * 5) // 5 minutes
{
Destroy();
return;
}
if (m_IsInGround)
{
// When an arrow hits, the client doesn't think its in the ground and keeps on moving, IF BroadcastMovementUpdate() and TeleportEntity was called during flight, AT ALL
// Fix is to simply not sync with the client and send a teleport to confirm pos after arrow has stabilised (around 1 sec after landing)
// We can afford to do this because xoft's algorithm for trajectory is near perfect, so things are pretty close anyway without sync
// Besides, this seems to be what the vanilla server does, note how arrows teleport half a second after they hit to the server position
if (!m_HasTeleported) // Sent a teleport already, don't do again
{
if (m_HitGroundTimer > 500.f) // Send after half a second, could be less, but just in case
{
m_World->BroadcastTeleportEntity(*this);
m_HasTeleported = true;
}
else
{
m_HitGroundTimer += a_Dt;
}
}
int RelPosX = m_HitBlockPos.x - a_Chunk.GetPosX() * cChunkDef::Width;
int RelPosZ = m_HitBlockPos.z - a_Chunk.GetPosZ() * cChunkDef::Width;
cChunk * Chunk = a_Chunk.GetRelNeighborChunkAdjustCoords(RelPosX, RelPosZ);
if (Chunk == NULL)
{
// Inside an unloaded chunk, abort
return;
}
if (Chunk->GetBlock(RelPosX, m_HitBlockPos.y, RelPosZ) == E_BLOCK_AIR) // Block attached to was destroyed?
{
m_IsInGround = false; // Yes, begin simulating physics again
}
}
}
