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// BlockEntityWithItems.h
// Declares the cBlockEntityWithItems class representing a common ancestor for all block entities that have an ItemGrid
#pragma once
#include "BlockEntity.h"
#include "../ItemGrid.h"
// tolua_begin
class cBlockEntityWithItems :
public cBlockEntity
// tolua_end
// tolua doesn't seem to support multiple inheritance?
, public cItemGrid::cListener
// tolua_begin
{
typedef cBlockEntity super;
public:
// tolua_end
cBlockEntityWithItems(
BLOCKTYPE a_BlockType, // Type of the block that the entity represents
int a_BlockX, int a_BlockY, int a_BlockZ, // Position of the block entity
int a_ItemGridWidth, int a_ItemGridHeight, // Dimensions of the ItemGrid
cWorld * a_World // Optional world to assign to the entity
) :
super(a_BlockType, a_BlockX, a_BlockY, a_BlockZ, a_World),
m_Contents(a_ItemGridWidth, a_ItemGridHeight)
{
m_Contents.AddListener(*this);
}
virtual void Destroy(void) override
{
// Drop the contents as pickups:
ASSERT(m_World != NULL);
cItems Pickups;
m_Contents.CopyToItems(Pickups);
m_Contents.Clear();
m_World->SpawnItemPickups(Pickups, m_PosX + 0.5, m_PosY + 0.5, m_PosZ + 0.5); // Spawn in centre of block
}
// tolua_begin
const cItem & GetSlot(int a_SlotNum) const { return m_Contents.GetSlot(a_SlotNum); }
const cItem & GetSlot(int a_X, int a_Y) const { return m_Contents.GetSlot(a_X, a_Y); }
void SetSlot(int a_SlotNum, const cItem & a_Item) { m_Contents.SetSlot(a_SlotNum, a_Item); }
void SetSlot(int a_X, int a_Y, const cItem & a_Item) { m_Contents.SetSlot(a_X, a_Y, a_Item); }
/// Returns the ItemGrid used for storing the contents
cItemGrid & GetContents(void) { return m_Contents; }
// tolua_end
/// Const version of the GetContents() function for C++ type-safety
const cItemGrid & GetContents(void) const { return m_Contents; }
protected:
cItemGrid m_Contents;
// cItemGrid::cListener overrides:
virtual void OnSlotChanged(cItemGrid * a_Grid, int a_SlotNum)
{
UNUSED(a_SlotNum);
ASSERT(a_Grid == &m_Contents);
if (m_World != NULL)
{
m_World->MarkChunkDirty(GetChunkX(), GetChunkZ());
}
}
} ; // tolua_export
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