7 files changed, 75 insertions, 3 deletions
diff --git a/kurator/CMakeLists.txt b/kurator/CMakeLists.txt
index 82f0a3f..b97a8b5 100644
--- a/kurator/CMakeLists.txt
+++ b/kurator/CMakeLists.txt
@@ -7,6 +7,7 @@ add_executable(
 	src/colors.cpp
 	src/ForceBalance.cpp
 	src/Grid.cpp
+	src/inspect.cpp
 	src/lines.cpp
 	src/main.cpp
 	src/markers.cpp
diff --git a/kurator/src/Battle.cpp b/kurator/src/Battle.cpp
index 9df0b01..93a1444 100644
--- a/kurator/src/Battle.cpp
+++ b/kurator/src/Battle.cpp
@@ -1,6 +1,7 @@
 #include "Battle.h"
 
 #include <algorithm>
+#include <functional>
 #include <cmath>
 #include <limits>
 #include <memory>
@@ -19,6 +20,7 @@
 
 #include "components.h"
 #include "Grid.h"
+#include "inspect.h"
 #include "lines.h"
 #include "markers.h"
 #include "Pause.h"
@@ -95,7 +97,7 @@ Battle::update()
 		ctx.camera.scale = std::min(GetScreenWidth()/30000.0, GetScreenHeight()/30000.0);
 	ctx.clock.update();
 	simulation_base(ctx);
-	update_markers(ctx);
+	update_markers(ctx, std::bind(&InspectionWindow::select, &inspect, std::placeholders::_1));
 	progress_timers(ctx);
 	move_ui_pops(ctx);
 	blink_crosses(ctx);
@@ -106,6 +108,7 @@ Battle::update()
 	if (ImGui::Begin("Controls", nullptr, ImGuiWindowFlags_NoFocusOnAppearing))
 		time_controls("TimeControls", ctx.clock.time_factor);
 	ImGui::End();
+	inspect.show();
 }
 
 
diff --git a/kurator/src/Battle.h b/kurator/src/Battle.h
index f6ec8d6..0de492a 100644
--- a/kurator/src/Battle.h
+++ b/kurator/src/Battle.h
@@ -11,6 +11,7 @@
 #include <kurator/stats/events.h>
 
 #include "ForceBalance.h"
+#include "inspect.h"
 #include "Scene.h"
 #include "Session.h"
 
@@ -39,6 +40,7 @@ private:
 	ForceBalance balance;
 	stats::EventLog log;
 	Callback report;
+	InspectionWindow inspect;
 };
 
 
diff --git a/kurator/src/inspect.cpp b/kurator/src/inspect.cpp
new file mode 100644
index 0000000..9622fd7
--- /dev/null
+++ b/kurator/src/inspect.cpp
@@ -0,0 +1,41 @@
+#include "inspect.h"
+
+#include <utility>
+
+#include <entt/entity/handle.hpp>
+#include <imgui.h>
+
+#include <kurator/universe/UniqueIdentifier.h>
+
+
+namespace kurator
+{
+
+
+void
+InspectionWindow::show()
+{
+	if (!open)
+		return;
+	if (ImGui::Begin("Inspect", &open)) {
+		if (selected) {
+			const auto& identifier = selected.get<universe::UniqueIdentifier>();
+			ImGui::Text("Selected: %d", identifier.id);
+		}
+		else {
+			ImGui::Text("Nothing selected");
+		}
+	}
+	ImGui::End();
+}
+
+
+void
+InspectionWindow::select(entt::handle entity)
+{
+	selected = std::move(entity);
+	open = true;
+}
+
+
+}  // namespace kurator
diff --git a/kurator/src/inspect.h b/kurator/src/inspect.h
new file mode 100644
index 0000000..c48ee5e
--- /dev/null
+++ b/kurator/src/inspect.h
@@ -0,0 +1,19 @@
+#pragma once
+
+#include <entt/entity/handle.hpp>
+
+
+namespace kurator
+{
+
+
+struct InspectionWindow
+{
+	bool open = false;
+	entt::handle selected = {};
+	void show();
+	void select(entt::handle entity);
+};
+
+
+}  // namespace kurator
diff --git a/kurator/src/markers.cpp b/kurator/src/markers.cpp
index 436bd33..b92f7d3 100644
--- a/kurator/src/markers.cpp
+++ b/kurator/src/markers.cpp
@@ -1,10 +1,12 @@
 #include "markers.h"
 
 #include <cmath>
+#include <functional>
 #include <string>
 #include <utility>
 
 #include <entt/entity/entity.hpp>
+#include <entt/entity/handle.hpp>
 #include <raylib.h>
 
 #include <kurator/engine/Point.h>
@@ -36,7 +38,7 @@ attach_markers(sim::State& ctx)
 
 
 void
-update_markers(sim::State& ctx)
+update_markers(sim::State& ctx, std::function<void(entt::handle)> select)
 {
 	engine::Point mouse {static_cast<double>(GetMouseX()), static_cast<double>(GetMouseY())};
 	entt::entity hover {entt::null};
@@ -50,6 +52,8 @@ update_markers(sim::State& ctx)
 	if (ctx.registry.valid(hover)) {
 		auto& marker = ctx.registry.get<Marker>(hover);
 		marker.hovered = true;
+		if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT) && select)
+			select(entt::handle{ctx.registry, hover});
 	}
 }
 
diff --git a/kurator/src/markers.h b/kurator/src/markers.h
index f390ff6..600adc1 100644
--- a/kurator/src/markers.h
+++ b/kurator/src/markers.h
@@ -1,7 +1,9 @@
 #pragma once
 
+#include <functional>
 #include <string>
 
+#include <entt/entity/handle.hpp>
 #include <raylib.h>
 
 #include <kurator/engine/Point.h>
@@ -23,7 +25,7 @@ struct Marker
 
 
 void attach_markers(sim::State& ctx);
-void update_markers(sim::State& ctx);
+void update_markers(sim::State& ctx, std::function<void(entt::handle)> select);
 void draw_markers(const sim::State& ctx);