Add some experimental message definitions to the main library.

library/CMakeLists.txt

@@ -141,6 +141,26 @@ ELSE()
     LIST(APPEND PROJECT_SRCS ${PROJECT_SRCS_WINDOWS})
 ENDIF()
 
+# Protobuf
+
+FILE(GLOB PROJECT_PROTOS ${CMAKE_CURRENT_SOURCE_DIR}/proto/*.proto)
+
+STRING(REPLACE ".proto" ".pb.cc" PROJECT_PROTO_SRCS ${PROJECT_PROTOS})
+STRING(REPLACE ".proto" ".pb.h" PROJECT_PROTO_HDRS ${PROJECT_PROTOS})
+
+LIST(APPEND PROJECT_HDRS ${PROJECT_PROTO_HDRS})
+LIST(APPEND PROJECT_SRCS ${PROJECT_PROTO_SRCS})
+
+ADD_CUSTOM_COMMAND(
+    OUTPUT ${PROJECT_PROTO_SRCS} ${PROJECT_PROTO_HDRS}
+    COMMAND protoc-bin -I=${CMAKE_CURRENT_SOURCE_DIR}/proto/
+            --cpp_out=dllexport_decl=DFHACK_EXPORT:${CMAKE_CURRENT_SOURCE_DIR}/proto/
+            ${PROJECT_PROTOS}
+    DEPENDS protoc-bin ${PROJECT_PROTOS}
+)
+
+#
+
 SET_SOURCE_FILES_PROPERTIES( ${PROJECT_HDRS} PROPERTIES HEADER_FILE_ONLY TRUE )
 
 LIST(APPEND PROJECT_SRCS ${PROJECT_HDRS})
@@ -193,6 +213,12 @@ else()
     ENDIF()
 endif()
 
+IF(WIN32)
+    SET_TARGET_PROPERTIES(dfhack PROPERTIES COMPILE_FLAGS "/FI\"Export.h\"" )
+ELSE()
+    SET_TARGET_PROPERTIES(dfhack PROPERTIES COMPILE_FLAGS "-include Export.h" )
+ENDIF()
+
 #effectively disables debug builds...
 SET_TARGET_PROPERTIES(dfhack  PROPERTIES DEBUG_POSTFIX "-debug" )
 

library/proto/.gitignore

@@ -0,0 +1,2 @@
+*.pb.cc
+*.pb.h

library/proto/CoreProtocol.proto

@@ -0,0 +1,59 @@
+package dfproto;
+
+option optimize_for = LITE_RUNTIME;
+
+message CoreTextFragment {
+    required string text = 1;
+
+    enum Color {
+        COLOR_BLACK = 0;
+        COLOR_BLUE = 1;
+        COLOR_GREEN = 2;
+        COLOR_CYAN = 3;
+        COLOR_RED = 4;
+        COLOR_MAGENTA = 5;
+        COLOR_BROWN = 6;
+        COLOR_GREY = 7;
+        COLOR_DARKGREY = 8;
+        COLOR_LIGHTBLUE = 9;
+        COLOR_LIGHTGREEN = 10;
+        COLOR_LIGHTCYAN = 11;
+        COLOR_LIGHTRED = 12;
+        COLOR_LIGHTMAGENTA = 13;
+        COLOR_YELLOW = 14;
+        COLOR_WHITE = 15;
+    };
+    optional Color color = 2;
+}
+
+message CoreTextNotification {
+    repeated CoreTextFragment fragments = 1;
+}
+
+message CoreErrorNotification {
+    enum ErrorCode {
+        CR_WOULD_BREAK = -2;
+        CR_NOT_IMPLEMENTED = -1;
+        CR_FAILURE = 0;
+        CR_OK = 1;
+        CR_WRONG_USAGE = 2;
+    };
+
+    required ErrorCode code = 1;
+}
+
+message CoreBindRequest {
+    required string method = 1;
+    optional string plugin = 2;
+    optional int32 min_version = 3;
+}
+
+message CoreBindReply {
+    required int32 assigned_id = 1;
+    required int32 version = 2;
+}
+
+message CoreRunStringRequest {
+    required string command = 1;
+    repeated string arguments = 2;
+}