move gui into ecs

.clang-tidy

@@ -2,6 +2,8 @@ Checks:
   - 'performance*,portability*,bugprone*,clang-analyzer*,cert*,concurrency*,readability*'
   - '-bugprone-easily-swappable-parameters'
   - '-performance-no-int-to-ptr'
+  - '-readability-braces-around-statements'
+  - '-readability-identifier-length'
 CheckOptions:
   - { key: readability-identifier-naming.VariableCase, value: lower_case }
   - { key: readability-identifier-naming.ParameterCase, value: lower_case }

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "data/scripts/ninjatracing"]
 	path = data/scripts/ninjatracing
 	url = https://github.com/nico/ninjatracing.git
+[submodule "subprojects/flecs"]
+	path = subprojects/flecs
+	url = https://github.com/apache-hb/flecs

src/frontend/gui/editor/include/editor/panels/editor.hpp

@@ -0,0 +1,36 @@
+#pragma once
+
+#include "imgui.h"
+#include "imgui_internal.h"
+
+#include "flecs.h"
+
+struct MainMenu { flecs::entity entity; };
+struct Window { };
+struct Menu { };
+struct MenuItem { };
+struct MenuSection { };
+
+struct Separator { };
+
+struct Title {
+    std::string title;
+    const char *c_str() const { return title.c_str(); }
+};
+
+struct ShortCut {
+    ImGuiKeyChord chord;
+    const char *c_str() const { return ImGui::GetKeyChordName(chord); }
+};
+
+struct Children {
+    flecs::query<> query;
+};
+
+struct Priority {
+    int value;
+
+    friend constexpr int cmp(const Priority &lhs, const Priority &rhs) {
+        return lhs.value - rhs.value;
+    }
+};

src/frontend/gui/editor/include/editor/panels/json.hpp

@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+#pragma once
+
+#include "editor/panels/panel.hpp"
+
+namespace ed
+{
+    IEditorPanel *create_json_panel();
+}

src/frontend/gui/editor/meson.build

@@ -10,23 +10,41 @@ src = [
     'src/panels/arena.cpp',
     'src/panels/demo.cpp',
     'src/panels/theme.cpp',
+    'src/panels/json.cpp',
 
     'src/utils/io.cpp',
 
     'src/main.cpp'
 ]
 
+flecs = subproject('flecs').get_variable('flecs_dep')
+
+deps = [
+    # render backend
+    draw,
+
+    # imgui deps and widgets
+    imgui, imfilebrowser, implot, memedit,
+
+    # cthulhu common deps
+    core, os, scan, io, arena, interop, backtrace,
+    notify, config,
+
+    # cthulhu runtime deps
+    setup, memory, broker, support, ssa, tree,
+
+    # extra utilities
+    json,
+
+    # ecs
+    flecs
+]
+
 executable('gui', src,
     cpp_args : gui_args,
     cpp_pch : 'src/stdafx.hpp',
     build_by_default : not meson.is_subproject(),
     install : not meson.is_subproject(),
     include_directories : [ 'include', 'src' ],
-    dependencies : [
-        draw, imgui, imfilebrowser, implot, memedit,
-        core, os, scan,
-        memory, notify, config, setup,
-        io, broker, support, ssa, tree, backtrace,
-        arena, interop
-    ]
-)
+    dependencies : deps
+)