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// CommandBlockEntity.cpp
// Implements the cCommandBlockEntity class representing a single command block in the world
#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
#include "json/json.h"
#include "CommandBlockEntity.h"
#include "../Entities/Player.h"
#include "../WorldStorage/FastNBT.h"
#include "../CommandOutput.h"
#include "../Root.h"
#include "../Server.h" // ExecuteConsoleCommand()
#include "../Chunk.h"
#include "../ChatColor.h"
cCommandBlockEntity::cCommandBlockEntity(int a_X, int a_Y, int a_Z, cWorld * a_World) :
super(E_BLOCK_COMMAND_BLOCK, a_X, a_Y, a_Z, a_World),
m_ShouldExecute(false),
m_IsPowered(false),
m_Result(0)
{}
void cCommandBlockEntity::UsedBy(cPlayer * a_Player)
{
// Nothing to do
UNUSED(a_Player);
}
void cCommandBlockEntity::SetCommand(const AString & a_Cmd)
{
m_Command = a_Cmd;
/*
Vanilla requires that the server send a Block Entity Update after a command has been set
Therefore, command blocks don't support on-the-fly (when window is open) updating of a command and therefore...
...the following code can't be put in UsedBy just before the window opens
Just documenting my experience in getting this to work :P
*/
m_World->BroadcastBlockEntity(GetPosX(), GetPosY(), GetPosZ());
}
void cCommandBlockEntity::SetLastOutput(const AString & a_LastOut)
{
m_World->BroadcastBlockEntity(GetPosX(), GetPosY(), GetPosZ());
m_LastOutput = a_LastOut;
}
void cCommandBlockEntity::SetResult(const NIBBLETYPE a_Result)
{
m_Result = a_Result;
}
const AString & cCommandBlockEntity::GetCommand(void) const
{
return m_Command;
}
const AString & cCommandBlockEntity::GetLastOutput(void) const
{
return m_LastOutput;
}
NIBBLETYPE cCommandBlockEntity::GetResult(void) const
{
return m_Result;
}
void cCommandBlockEntity::Activate(void)
{
m_ShouldExecute = true;
}
void cCommandBlockEntity::SetRedstonePower(bool a_IsPowered)
{
if (a_IsPowered && !m_IsPowered)
{
Activate();
}
m_IsPowered = a_IsPowered;
}
bool cCommandBlockEntity::Tick(float a_Dt, cChunk & a_Chunk)
{
UNUSED(a_Dt);
UNUSED(a_Chunk);
if (!m_ShouldExecute)
{
return false;
}
m_ShouldExecute = false;
Execute();
return true;
}
void cCommandBlockEntity::SendTo(cClientHandle & a_Client)
{
a_Client.SendUpdateBlockEntity(*this);
}
bool cCommandBlockEntity::LoadFromJson(const Json::Value & a_Value)
{
m_PosX = a_Value.get("x", 0).asInt();
m_PosY = a_Value.get("y", 0).asInt();
m_PosZ = a_Value.get("z", 0).asInt();
m_Command = a_Value.get("Command", "").asString();
m_LastOutput = a_Value.get("LastOutput", "").asString();
m_Result = (NIBBLETYPE)a_Value.get("SuccessCount", 0).asInt();
return true;
}
void cCommandBlockEntity::SaveToJson(Json::Value & a_Value)
{
a_Value["x"] = m_PosX;
a_Value["y"] = m_PosY;
a_Value["z"] = m_PosZ;
a_Value["Command"] = m_Command;
a_Value["LastOutput"] = m_LastOutput;
a_Value["SuccessCount"] = m_Result;
}
void cCommandBlockEntity::Execute()
{
ASSERT(m_World != NULL); //Execute should not be called before the command block is attached to a world
if (!m_World->AreCommandBlocksEnabled())
{
return;
}
class CommandBlockOutCb :
public cCommandOutputCallback
{
cCommandBlockEntity * m_CmdBlock;
public:
CommandBlockOutCb(cCommandBlockEntity * a_CmdBlock) : m_CmdBlock(a_CmdBlock) {}
virtual void Out(const AString & a_Text)
{
// Overwrite field
m_CmdBlock->SetLastOutput(cClientHandle::FormatChatPrefix(m_CmdBlock->GetWorld()->ShouldUseChatPrefixes(), "SUCCESS", cChatColor::Green, cChatColor::White) + a_Text);
}
} CmdBlockOutCb(this);
// Administrator commands are not executable by command blocks:
if (
(m_Command != "stop") &&
(m_Command != "restart") &&
(m_Command != "kick") &&
(m_Command != "ban") &&
(m_Command != "ipban")
)
{
cServer * Server = cRoot::Get()->GetServer();
LOGD("cCommandBlockEntity: Executing command %s", m_Command.c_str());
Server->ExecuteConsoleCommand(m_Command, CmdBlockOutCb);
}
else
{
SetLastOutput(cClientHandle::FormatChatPrefix(GetWorld()->ShouldUseChatPrefixes(), "FAILURE", cChatColor::Rose, cChatColor::White) + "Adminstration commands can not be executed");
LOGD("cCommandBlockEntity: Prevented execution of administration command %s", m_Command.c_str());
}
// TODO 2014-01-18 xdot: Update the signal strength.
m_Result = 0;
}
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