add pause shortcut

include/td/display/state/DebugWorldState.h

@@ -21,6 +21,8 @@ class DebugWorldState : public DisplayState {
 	std::vector<std::unique_ptr<client::Client>> m_FakeClients;
 	std::shared_ptr<server::FakeSocket> m_ServerSocket;
 
+	unsigned int m_PlaySpeed = 1;
+
   public:
 	DebugWorldState(Display& a_Display);
 	~DebugWorldState();

src/td/display/state/DebugWorldState.cpp

@@ -75,8 +75,8 @@ DebugWorldState::DebugWorldState(Display& a_Display) : DisplayState(a_Display) {
 }
 
 void DebugWorldState::Update(float a_Delta) {
-	m_Server->Update(a_Delta);
-	m_Client->Update(a_Delta);
+	m_Server->Update(a_Delta * m_PlaySpeed);
+	m_Client->Update(a_Delta * m_PlaySpeed);
 	if (m_ClientState)
 		m_Renderer.Render(m_ClientState->GetCurrentLerp());
 }
@@ -102,6 +102,10 @@ void DebugWorldState::OnKeyDown(SDL_Keycode a_Key) {
 			m_Client->Update(SECONDS);
 			break;
 
+		case SDLK_P:
+			m_PlaySpeed = 1 - m_PlaySpeed;
+			break;
+
 		default:
 			break;
 	}