record and replay screen shifting while looking

src/game/boe.actions.cpp

@@ -1155,6 +1155,19 @@ static void handle_party_death() {
 }
 
 void screen_shift(int dx, int dy, bool& need_redraw) {
+	if(recording){
+		std::map<std::string,std::string> info;
+		std::ostringstream sstr;
+		sstr << dx;
+		info["dx"] = sstr.str();
+
+		sstr.str("");
+		sstr << dy;
+		info["dy"] = sstr.str();
+
+		record_action("screen_shift", info);
+	}
+
 	center.x += dx;
 	center.y += dy;
 

src/game/boe.main.cpp

@@ -412,6 +412,17 @@ static void replay_next_action() {
 		eKeyMod mods = static_cast<eKeyMod>(std::stoi(info["mods"]));
 
 		handle_look(destination, right_button, mods, need_redraw, need_reprint);
+	}else if(t == "screen_shift"){
+		auto info = info_from_action(next_action);
+		std::istringstream sstr(info["dx"]);
+		int dx = 0;
+		sstr >> dx;
+
+		sstr.str(info["dy"]);
+		int dy = 0;
+		sstr >> dy;
+
+		screen_shift(dx, dy, need_redraw);
 	}
 
 	// TODO some of these actions shouldn't call advance_time(). They should return