Added a plugin that starts up and shuts down protobufs. Will add actual map export functionality to it tomorrow.

plugins/CMakeLists.txt

@@ -35,6 +35,11 @@ if(BUILD_DF2MC)
     add_subdirectory (df2mc)
 endif()
 
+OPTION(BUILD_MAPEXPORT "Build map exporter." ON)
+if (BUILD_MAPEXPORT)
+    add_subdirectory (mapexport)
+endif()
+
 
 DFHACK_PLUGIN(reveal reveal.cpp)
 DFHACK_PLUGIN(probe probe.cpp)

plugins/mapexport/CMakeLists.txt

@@ -0,0 +1,35 @@
+PROJECT(mapexport)
+SET(MAPEXPORT_SOURCE_DIR ${dfhack_SOURCE_DIR}/plugins/mapexport)
+
+include_directories (
+    ${CMAKE_CURRENT_BINARY_DIR}
+    ${dfhack_SOURCE_DIR}/library/depends/protobuf/
+)
+
+#Generated protobuf files and the headers they will require
+SET(PROJECT_HDRS
+${dfhack_SOURCE_DIR}/library/depends/protobuf/google/protobuf/stubs/once.h
+${dfhack_SOURCE_DIR}/library/depends/protobuf/google/protobuf/stubs/common.h
+${dfhack_SOURCE_DIR}/library/depends/protobuf/google/protobuf/io/coded_stream.h
+${dfhack_SOURCE_DIR}/library/depends/protobuf/google/protobuf/wire_format_lite_inl.h
+${dfhack_SOURCE_DIR}/library/depends/protobuf/google/protobuf/generated_message_util.h
+${dfhack_SOURCE_DIR}/library/depends/protobuf/google/protobuf/repeated_field.h
+${dfhack_SOURCE_DIR}/library/depends/protobuf/google/protobuf/extension_set.h
+proto/Tile.pb.h
+)
+
+SET(PROJECT_SRCS
+mapexport.cpp
+proto/Tile.pb.cc
+)
+
+SET_SOURCE_FILES_PROPERTIES( ${PROJECT_HDRS} PROPERTIES HEADER_FILE_ONLY TRUE)
+LIST(APPEND PROJECT_SRCS ${PROJECT_HDRS})
+
+ADD_CUSTOM_COMMAND(
+OUTPUT proto/Tile.pb.cc proto/Tile.pb.h
+COMMAND protoc -I=${CMAKE_CURRENT_SOURCE_DIR}/proto --cpp_out=proto ${CMAKE_CURRENT_SOURCE_DIR}/proto/Tile.proto
+DEPENDS protoc ${CMAKE_CURRENT_SOURCE_DIR}/proto/Tile.proto
+)
+
+DFHACK_PLUGIN(mapexport ${PROJECT_SRCS} ${PROJECT_HDRS} LINK_LIBRARIES libprotobuf-lite)

plugins/mapexport/mapexport.cpp

@@ -0,0 +1,45 @@
+#include "Core.h"
+#include <Console.h>
+#include <Export.h>
+#include <PluginManager.h>
+#include "proto/Tile.pb.h"
+using namespace DFHack;
+
+DFhackCExport command_result mapexport (Core * c, std::vector <std::string> & parameters);
+
+DFhackCExport const char * plugin_name ( void )
+{
+    return "mapexport";
+}
+
+DFhackCExport command_result plugin_init ( Core * c, std::vector <PluginCommand> &commands)
+{
+	GOOGLE_PROTOBUF_VERIFY_VERSION;
+    commands.clear();
+    commands.push_back(PluginCommand("mapexport", "Starts up and shuts down protobufs.", mapexport, true));
+    return CR_OK;
+}
+
+DFhackCExport command_result plugin_shutdown ( Core * c )
+{
+	google::protobuf::ShutdownProtobufLibrary();
+    return CR_OK;
+}
+
+DFhackCExport command_result mapexport (Core * c, std::vector <std::string> & parameters)
+{
+    for(int i = 0; i < parameters.size();i++)
+    {
+        if(parameters[i] == "help" || parameters[i] == "?")
+        {
+            c->con.print("This doesn't do anything at all yet.\n");
+            return CR_OK;
+        }
+    }
+
+    c->Suspend();
+	dfproto::Tile tile;
+    c->con.print("Hold on, I'm working on it!\n");
+    c->Resume();
+    return CR_OK;
+}

plugins/mapexport/proto/Tile.proto

@@ -0,0 +1,10 @@
+package dfproto;
+option optimize_for = LITE_RUNTIME;
+
+message Tile
+{
+    required uint32 x = 1;
+    required uint32 y = 2;
+    required uint32 tiletype = 3;
+    optional uint32 material = 4;
+}