session.cpp

game/session.cpp

@@ -0,0 +1,74 @@
+#include "session.hpp"
+#include "game.hpp"
+#include "state/commands.hpp"
+
+#include <iostream>
+
+using namespace std;
+
+bool Session::parse(string s)
+{
+    s.erase(std::find_if(s.rbegin(), s.rend(),
+            std::not1(std::ptr_fun<int, int>(std::isspace))).base(), s.end());
+
+    if(s.size()==1&&s[0]=='q'){
+        //quit
+        m_socket.close();
+        m_state->quitPlayer(m_pid);
+        return false;
+    }else if(s.size()==1&&s[0]=='c'){
+        //clear
+        m_state->clear(m_pid);
+    }else if(s.size()>=3&&s[0]=='n'&&s[1]==' '){
+        //set name
+        m_state->setName(m_pid, s.substr(2));
+    }else if(s.size()>=3&&s[0]=='v'&&s[1]==' '){
+        //set speed
+        double speed = atof(s.substr(2).c_str());
+        m_state->setSpeed(m_pid, speed);
+    }else{
+        //shoot
+        double angle = atof(s.c_str());
+        m_state->commandForPlayer(m_pid, new game::ShootCommand(angle));
+    }
+    return true;
+}
+
+void Session::start()
+{
+    if(m_started) return;
+    m_started=true;
+    m_pid = m_state->addPlayer();
+    char hello[] = "\nUse \"n name\" to change name, \"v velocity\" to change velocity, \"c\" to clear past shots or \"q\" to close the connection.\nEverything else is interpreted as a shooting angle.\n\n> ";
+    do_write(hello, strlen(hello));
+}
+
+void Session::do_read()
+{
+    auto self(shared_from_this());
+    m_socket.async_read_some(asio::buffer(m_rcv_data, max_length),
+        [this, self](std::error_code ec, std::size_t length)
+        {
+            if (!ec)
+            {
+                std::string s(m_rcv_data,length);
+                if(parse(s)){
+                    char c[]="> ";
+                    do_write(c,strlen(c));
+                }
+            }
+        });
+}
+
+void Session::do_write(char m_snd_data[], std::size_t length)
+{
+    auto self(shared_from_this());
+    asio::async_write(m_socket, asio::buffer(m_snd_data, length),
+        [this, self](std::error_code ec, std::size_t /*length*/)
+        {
+            if (!ec)
+            {
+                do_read();
+            }
+        });
+}