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cuberite-2a/src/Blocks/BlockSnow.h
Tiger Wang ab382ef6b4 Fixed thin snow CanBeAt checking
Now takes into account the possibility that thin snow can be on top of
full thin snow.
2013-11-30 11:45:23 +00:00

101 lines
2.2 KiB
C++

#pragma once
#include "BlockHandler.h"
class cBlockSnowHandler :
public cBlockHandler
{
public:
cBlockSnowHandler(BLOCKTYPE a_BlockType)
: cBlockHandler(a_BlockType)
{
}
virtual bool GetPlacementBlockTypeMeta(
cWorld * a_World, cPlayer * a_Player,
int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace,
int a_CursorX, int a_CursorY, int a_CursorZ,
BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
) override
{
a_BlockType = m_BlockType;
BLOCKTYPE BlockBeforePlacement;
NIBBLETYPE MetaBeforePlacement;
a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, BlockBeforePlacement, MetaBeforePlacement);
if ((BlockBeforePlacement == E_BLOCK_SNOW) && (MetaBeforePlacement < 7))
{
// Only increment if:
// A snow block was already there (not first time placement) AND
// Height is smaller than 7, the maximum possible height
MetaBeforePlacement++;
}
a_BlockMeta = MetaBeforePlacement;
return true;
}
virtual bool DoesIgnoreBuildCollision(cPlayer * a_Player, NIBBLETYPE a_Meta) override
{
if ((a_Player->GetEquippedItem().m_ItemType == E_BLOCK_SNOW) && (a_Meta < 7))
{
return true; // If a player is holding a (thin) snow block and it's size can be increased, return collision ignored
}
if (a_Meta == 0)
{
return true; // If at normal snowfall height (lowest), we ignore collision
}
return false;
}
virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
{
a_Pickups.push_back(cItem(E_ITEM_SNOWBALL, 1, 0));
}
virtual bool CanBeAt(int a_RelX, int a_RelY, int a_RelZ, const cChunk & a_Chunk) override
{
if (a_RelY > 0)
{
BLOCKTYPE BlockBelow = a_Chunk.GetBlock(a_RelX, a_RelY - 1, a_RelZ);
NIBBLETYPE MetaBelow = a_Chunk.GetMeta(a_RelX, a_RelY - 1, a_RelZ);
if (g_BlockIsSnowable[BlockBelow] || ((BlockBelow == E_BLOCK_SNOW) && (MetaBelow == 7)))
{
// If block below is snowable, or it is a thin slow block and has a meta of 7 (full thin snow block), say yay
return true;
}
}
return false;
}
virtual bool DoesDropOnUnsuitable(void) override
{
return false;
}
virtual const char * GetStepSound(void) override
{
return "step.cloth";
}
} ;