eaa17b6a84
git-svn-id: http://mc-server.googlecode.com/svn/trunk@252 0a769ca7-a7f5-676a-18bf-c427514a06d6
92 lines
2.0 KiB
C++
92 lines
2.0 KiB
C++
|
||
#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
|
||
|
||
#include "cSandSimulator.h"
|
||
#include "cWorld.h"
|
||
#include "Vector3i.h"
|
||
#include "BlockID.h"
|
||
#include "Defines.h"
|
||
|
||
|
||
|
||
|
||
|
||
cSandSimulator::cSandSimulator( cWorld* a_World )
|
||
: cSimulator(a_World)
|
||
, m_Blocks(new BlockList)
|
||
, m_Buffer(new BlockList)
|
||
{
|
||
|
||
}
|
||
|
||
cSandSimulator::~cSandSimulator()
|
||
{
|
||
delete m_Buffer;
|
||
delete m_Blocks;
|
||
}
|
||
|
||
void cSandSimulator::Simulate( float a_Dt )
|
||
{
|
||
m_Buffer->clear();
|
||
std::swap( m_Blocks, m_Buffer );
|
||
|
||
for( BlockList::iterator itr = m_Buffer->begin(); itr != m_Buffer->end(); ++itr )
|
||
{
|
||
Vector3i Pos = *itr;
|
||
char BlockID = m_World->GetBlock(Pos.x, Pos.y, Pos.z);
|
||
if(!IsAllowedBlock(BlockID))
|
||
continue;
|
||
|
||
char BottomBlock = m_World->GetBlock( Pos.x, Pos.y - 1, Pos.z );
|
||
|
||
if( IsPassable(BottomBlock) )
|
||
{
|
||
m_World->SetBlock( Pos.x, Pos.y, Pos.z, E_BLOCK_AIR, 0 );
|
||
m_World->SetBlock( Pos.x, Pos.y - 1, Pos.z, BlockID, 0 );
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
|
||
bool cSandSimulator::IsAllowedBlock( char a_BlockID )
|
||
{
|
||
return a_BlockID == E_BLOCK_SAND
|
||
|| a_BlockID == E_BLOCK_GRAVEL;
|
||
}
|
||
|
||
void cSandSimulator::AddBlock(int a_X, int a_Y, int a_Z)
|
||
{
|
||
if(!IsAllowedBlock(m_World->GetBlock(a_X, a_Y, a_Z))) //This should save very much time because it doesn´t have to iterate through all blocks
|
||
return;
|
||
|
||
Vector3i Block(a_X, a_Y, a_Z);
|
||
|
||
//check for duplicates
|
||
for( BlockList::iterator itr = m_Blocks->begin(); itr != m_Blocks->end(); ++itr )
|
||
{
|
||
Vector3i Pos = *itr;
|
||
if( Pos.x == a_X && Pos.y == a_Y && Pos.z == a_Z )
|
||
return;
|
||
}
|
||
|
||
m_Blocks->push_back(Block);
|
||
|
||
}
|
||
|
||
bool cSandSimulator::IsPassable( char a_BlockID )
|
||
{
|
||
return a_BlockID == E_BLOCK_AIR
|
||
|| IsBlockWater(a_BlockID)
|
||
|| IsBlockLava(a_BlockID)
|
||
|| a_BlockID == E_BLOCK_FIRE;
|
||
|
||
}
|
||
|
||
void cSandSimulator::WakeUp( int a_X, int a_Y, int a_Z )
|
||
{
|
||
//Nothing else needs to be simulated :D (Bugs not included :s)
|
||
AddBlock( a_X, a_Y+1, a_Z );
|
||
AddBlock( a_X, a_Y, a_Z );
|
||
}
|