add basic timer

src/td/display/state/DebugWorldState.cpp

@@ -7,6 +7,7 @@
 #include <td/protocol/packet/Packets.h>
 #include <td/render/renderer/EntityRenderer.h>
 #include <td/render/renderer/PlayerListRenderer.h>
+#include <td/render/renderer/TimerRenderer.h>
 #include <td/render/renderer/TowerRenderer.h>
 #include <td/render/renderer/WorldRenderer.h>
 
@@ -41,6 +42,7 @@ DebugWorldState::DebugWorldState(Display& a_Display) : DisplayState(a_Display) {
 			m_Renderer.AddRenderer<render::WorldRenderer>(m_Camera, clientWorld);
 			m_Renderer.AddRenderer<render::EntityRenderer>(m_Camera, clientWorld);
 			m_Renderer.AddRenderer<render::TowerRenderer>(m_Camera, clientWorld);
+			m_Renderer.AddRenderer<render::TimerRenderer>(*gameState);
 
 			auto& list = m_Renderer.AddRenderer<render::PlayerListRenderer>(m_Client->GetPlayers());
 

src/td/render/renderer/TimerRenderer.cpp

@@ -0,0 +1,18 @@
+#include <client/state/GameState.h>
+#include <td/render/renderer/TimerRenderer.h>
+
+#include <imgui.h>
+
+namespace td {
+namespace render {
+
+void TimerRenderer::Render(float a_Lerp) {
+	ImGui::Begin("Timer");
+	ImGui::Text("Time : %02d:%02d", static_cast<int>(m_State.GetElapsedTime()) / 60, static_cast<int>(m_State.GetElapsedTime()) % 60);
+	ImGui::End();
+}
+
+TimerRenderer::TimerRenderer(const client::GameState& a_State) : m_State(a_State) {}
+
+}  // namespace render
+}  // namespace td