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cuberite-2a/src/Entities/Pickup.cpp

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#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#ifndef _WIN32
#include <cstdlib>
#endif
#include "Pickup.h"
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#include "Player.h"
#include "../ClientHandle.h"
#include "../World.h"
#include "../Server.h"
#include "../Bindings/PluginManager.h"
#include "../Root.h"
#include "../Chunk.h"
class cPickupCombiningCallback :
public cEntityCallback
{
public:
cPickupCombiningCallback(Vector3d a_Position, cPickup * a_Pickup) :
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m_FoundMatchingPickup(false),
m_Position(a_Position),
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m_Pickup(a_Pickup)
{
}
virtual bool Item(cEntity * a_Entity) override
{
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if (!a_Entity->IsPickup() || (a_Entity->GetUniqueID() <= m_Pickup->GetUniqueID()) || a_Entity->IsDestroyed())
{
return false;
}
Vector3d EntityPos = a_Entity->GetPosition();
double Distance = (EntityPos - m_Position).Length();
cItem & Item = ((cPickup *)a_Entity)->GetItem();
if ((Distance < 1.2) && Item.IsEqual(m_Pickup->GetItem()))
{
short CombineCount = Item.m_ItemCount;
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if ((CombineCount + m_Pickup->GetItem().m_ItemCount) > Item.GetMaxStackSize())
{
CombineCount = Item.GetMaxStackSize() - m_Pickup->GetItem().m_ItemCount;
}
if (CombineCount <= 0)
{
return false;
}
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m_Pickup->GetItem().AddCount((char)CombineCount);
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Item.m_ItemCount -= CombineCount;
if (Item.m_ItemCount <= 0)
{
a_Entity->Destroy();
}
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else
{
a_Entity->GetWorld()->BroadcastEntityMetadata(*a_Entity);
}
m_FoundMatchingPickup = true;
}
return false;
}
inline bool FoundMatchingPickup()
{
return m_FoundMatchingPickup;
}
protected:
bool m_FoundMatchingPickup;
Vector3d m_Position;
cPickup * m_Pickup;
};
cPickup::cPickup(double a_PosX, double a_PosY, double a_PosZ, const cItem & a_Item, bool IsPlayerCreated, float a_SpeedX /* = 0.f */, float a_SpeedY /* = 0.f */, float a_SpeedZ /* = 0.f */)
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: cEntity(etPickup, a_PosX, a_PosY, a_PosZ, 0.2, 0.2)
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, m_Timer(0.f)
, m_Item(a_Item)
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, m_bCollected(false)
, m_bIsPlayerCreated(IsPlayerCreated)
{
SetGravity(-10.5f);
SetMaxHealth(5);
SetHealth(5);
SetSpeed(a_SpeedX, a_SpeedY, a_SpeedZ);
}
void cPickup::SpawnOn(cClientHandle & a_Client)
{
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a_Client.SendPickupSpawn(*this);
}
void cPickup::Tick(float a_Dt, cChunk & a_Chunk)
{
super::Tick(a_Dt, a_Chunk);
BroadcastMovementUpdate(); // Notify clients of position
m_Timer += a_Dt;
if (!m_bCollected)
{
int BlockY = POSY_TOINT;
int BlockX = POSX_TOINT;
int BlockZ = POSZ_TOINT;
if ((BlockY >= 0) && (BlockY < cChunkDef::Height)) // Don't do anything except for falling when outside the world
{
// Position might have changed due to physics. So we have to make sure we have the correct chunk.
GET_AND_VERIFY_CURRENT_CHUNK(CurrentChunk, BlockX, BlockZ)
int RelBlockX = BlockX - (CurrentChunk->GetPosX() * cChunkDef::Width);
int RelBlockZ = BlockZ - (CurrentChunk->GetPosZ() * cChunkDef::Width);
// If the pickup is on the bottommost block position, make it think the void is made of air: (#131)
BLOCKTYPE BlockBelow = (BlockY > 0) ? CurrentChunk->GetBlock(RelBlockX, BlockY - 1, RelBlockZ) : E_BLOCK_AIR;
BLOCKTYPE BlockIn = CurrentChunk->GetBlock(RelBlockX, BlockY, RelBlockZ);
if (
IsBlockLava(BlockBelow) || (BlockBelow == E_BLOCK_FIRE) ||
IsBlockLava(BlockIn) || (BlockIn == E_BLOCK_FIRE)
)
{
m_bCollected = true;
m_Timer = 0; // We have to reset the timer.
m_Timer += a_Dt; // In case we have to destroy the pickup in the same tick.
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if (m_Timer > 500.f)
{
Destroy(true);
return;
}
}
// Try to combine the pickup with adjacent same-item pickups:
if (!IsDestroyed() && (m_Item.m_ItemCount < m_Item.GetMaxStackSize())) // Don't combine if already full
{
// By using a_Chunk's ForEachEntity() instead of cWorld's, pickups don't combine across chunk boundaries.
// That is a small price to pay for not having to traverse the entire world for each entity.
// The speedup in the tick thread is quite considerable.
cPickupCombiningCallback PickupCombiningCallback(GetPosition(), this);
a_Chunk.ForEachEntity(PickupCombiningCallback);
if (PickupCombiningCallback.FoundMatchingPickup())
{
m_World->BroadcastEntityMetadata(*this);
}
}
}
}
else
{
if (m_Timer > 500.f) // 0.5 second
{
Destroy(true);
return;
}
}
if (m_Timer > 1000 * 60 * 5) // 5 minutes
{
Destroy(true);
return;
}
if (GetPosY() < VOID_BOUNDARY) // Out of this world and no more visible!
{
Destroy(true);
return;
}
}
bool cPickup::CollectedBy(cPlayer & a_Dest)
{
if (m_bCollected)
{
// LOG("Pickup %d cannot be collected by \"%s\", because it has already been collected.", m_UniqueID, a_Dest->GetName().c_str());
return false; // It's already collected!
}
// Two seconds if player created the pickup (vomiting), half a second if anything else
if (m_Timer < (m_bIsPlayerCreated ? 2000.f : 500.f))
{
// LOG("Pickup %d cannot be collected by \"%s\", because it is not old enough.", m_UniqueID, a_Dest->GetName().c_str());
return false; // Not old enough
}
if (cRoot::Get()->GetPluginManager()->CallHookCollectingPickup(a_Dest, *this))
{
// LOG("Pickup %d cannot be collected by \"%s\", because a plugin has said no.", m_UniqueID, a_Dest->GetName().c_str());
return false;
}
int NumAdded = a_Dest.GetInventory().AddItem(m_Item);
if (NumAdded > 0)
{
// Check achievements
switch (m_Item.m_ItemType)
{
case E_BLOCK_LOG: a_Dest.AwardAchievement(achMineWood); break;
case E_ITEM_LEATHER: a_Dest.AwardAchievement(achKillCow); break;
case E_ITEM_DIAMOND: a_Dest.AwardAchievement(achDiamonds); break;
case E_ITEM_BLAZE_ROD: a_Dest.AwardAchievement(achBlazeRod); break;
default: break;
}
m_Item.m_ItemCount -= NumAdded;
m_World->BroadcastCollectEntity(*this, a_Dest);
// Also send the "pop" sound effect with a somewhat random pitch (fast-random using EntityID ;)
m_World->BroadcastSoundEffect("random.pop", GetPosX(), GetPosY(), GetPosZ(), 0.5, (float)(0.75 + ((float)((GetUniqueID() * 23) % 32)) / 64));
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if (m_Item.m_ItemCount <= 0)
{
// All of the pickup has been collected, schedule the pickup for destroying
m_bCollected = true;
}
m_Timer = 0;
return true;
}
// LOG("Pickup %d cannot be collected by \"%s\", because there's no space in the inventory.", a_Dest->GetName().c_str(), m_UniqueID);
return false;
}