230 lines
4.0 KiB
C++
230 lines
4.0 KiB
C++
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// CommandBlockEntity.cpp
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// Implements the cCommandBlockEntity class representing a single command block in the world
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#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
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#include "json/json.h"
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#include "CommandBlockEntity.h"
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#include "../Entities/Player.h"
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#include "../WorldStorage/FastNBT.h"
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#include "../CommandOutput.h"
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#include "../Root.h"
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#include "../Server.h" // ExecuteConsoleCommand()
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cCommandBlockEntity::cCommandBlockEntity(int a_X, int a_Y, int a_Z, cWorld * a_World) :
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super(E_BLOCK_COMMAND_BLOCK, a_X, a_Y, a_Z, a_World),
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m_ShouldExecute(false),
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m_IsPowered(false)
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{}
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void cCommandBlockEntity::UsedBy(cPlayer * a_Player)
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{
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// Nothing to do
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UNUSED(a_Player);
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}
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void cCommandBlockEntity::SetCommand(const AString & a_Cmd)
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{
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m_Command = a_Cmd;
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/*
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Vanilla requires that the server send a Block Entity Update after a command has been set
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Therefore, command blocks don't support on-the-fly (when window is open) updating of a command and therefore...
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...the following code can't be put in UsedBy just before the window opens
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Just documenting my experience in getting this to work :P
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*/
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m_World->BroadcastBlockEntity(GetPosX(), GetPosY(), GetPosZ());
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}
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void cCommandBlockEntity::SetLastOutput(const AString & a_LastOut)
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{
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m_LastOutput = a_LastOut;
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}
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void cCommandBlockEntity::SetResult(const NIBBLETYPE a_Result)
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{
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m_Result = a_Result;
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}
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const AString & cCommandBlockEntity::GetCommand(void) const
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{
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return m_Command;
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}
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const AString & cCommandBlockEntity::GetLastOutput(void) const
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{
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return m_LastOutput;
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}
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NIBBLETYPE cCommandBlockEntity::GetResult(void) const
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{
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return m_Result;
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}
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void cCommandBlockEntity::Activate(void)
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{
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m_ShouldExecute = true;
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}
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void cCommandBlockEntity::SetRedstonePower(bool a_IsPowered)
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{
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if (a_IsPowered && !m_IsPowered)
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{
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Activate();
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}
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m_IsPowered = a_IsPowered;
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}
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bool cCommandBlockEntity::Tick(float a_Dt, cChunk & a_Chunk)
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{
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if (!m_ShouldExecute)
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{
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return false;
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}
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m_ShouldExecute = false;
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Execute();
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return true;
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}
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void cCommandBlockEntity::SendTo(cClientHandle & a_Client)
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{
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cFastNBTWriter Writer;
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Writer.AddByte("TrackOutput", 1); // Neither I nor the MC wiki has any idea about this
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Writer.AddInt("SuccessCount", GetResult());
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Writer.AddInt("x", GetPosX());
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Writer.AddInt("y", GetPosY());
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Writer.AddInt("z", GetPosZ());
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Writer.AddString("Command", GetCommand().c_str());
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// You can set custom names for windows in Vanilla
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// For a command block, this would be the 'name' prepended to anything it outputs into global chat
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// MCS doesn't have this, so just leave it @ '@'. (geddit?)
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Writer.AddString("CustomName", "@");
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Writer.AddString("id", "Control"); // "Tile Entity ID" - MC wiki; vanilla server always seems to send this though
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if (!GetLastOutput().empty())
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{
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AString Output;
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Printf(Output, "{\"text\":\"%s\"}", GetLastOutput().c_str());
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Writer.AddString("LastOutput", Output.c_str());
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}
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Writer.Finish();
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a_Client.SendUpdateBlockEntity(GetPosX(), GetPosY(), GetPosZ(), 2, Writer);
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}
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bool cCommandBlockEntity::LoadFromJson(const Json::Value & a_Value)
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{
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m_Command = a_Value.get("Command", "").asString();
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m_LastOutput = a_Value.get("LastOutput", "").asString();
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return true;
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}
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void cCommandBlockEntity::SaveToJson(Json::Value & a_Value)
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{
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a_Value["Command"] = m_Command;
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a_Value["LastOutput"] = m_LastOutput;
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}
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void cCommandBlockEntity::Execute()
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{
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class CommandBlockOutCb :
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public cCommandOutputCallback
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{
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cCommandBlockEntity* m_CmdBlock;
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public:
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CommandBlockOutCb(cCommandBlockEntity* a_CmdBlock) : m_CmdBlock(a_CmdBlock) {}
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virtual void Out(const AString & a_Text)
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{
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ASSERT(m_CmdBlock != NULL);
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// Overwrite field
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m_CmdBlock->SetLastOutput(a_Text);
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}
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} CmdBlockOutCb(this);
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LOGD("cCommandBlockEntity: Executing command %s", m_Command.c_str());
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cServer* Server = cRoot::Get()->GetServer();
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Server->ExecuteConsoleCommand(m_Command, CmdBlockOutCb);
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// TODO 2014-01-18 xdot: Update the signal strength.
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m_Result = 0;
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}
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