summaryrefslogtreecommitdiffstats
path: root/src/BlockEntities/CommandBlockEntity.cpp
blob: fe2f5e60ac1b4f2562d08040b2968ad82a2e46d5 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238

// 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()
{
	if (m_World != NULL)
	{
		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);

	if (  // Administrator commands are not executable by command blocks
		(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;
}