Properly link flecs library

engine/libs/flecs/examples/cpp/reflection/nested_struct/include/nested_struct.h

@@ -0,0 +1,16 @@
+#ifndef NESTED_STRUCT_H
+#define NESTED_STRUCT_H
+
+/* This generated file contains includes for project dependencies */
+#include "nested_struct/bake_config.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+

engine/libs/flecs/examples/cpp/reflection/nested_struct/include/nested_struct/bake_config.h

@@ -0,0 +1,24 @@
+/*
+                                   )
+                                  (.)
+                                  .|.
+                                  | |
+                              _.--| |--._
+                           .-';  ;`-'& ; `&.
+                          \   &  ;    &   &_/
+                           |"""---...---"""|
+                           \ | | | | | | | /
+                            `---.|.|.|.---'
+
+ * This file is generated by bake.lang.c for your convenience. Headers of
+ * dependencies will automatically show up in this file. Include bake_config.h
+ * in your main project file. Do not edit! */
+
+#ifndef NESTED_STRUCT_BAKE_CONFIG_H
+#define NESTED_STRUCT_BAKE_CONFIG_H
+
+/* Headers of public dependencies */
+#include <flecs.h>
+
+#endif
+

engine/libs/flecs/examples/cpp/reflection/nested_struct/project.json

@@ -0,0 +1,11 @@
+{
+    "id": "nested_struct",
+    "type": "application",
+    "value": {
+        "use": [
+            "flecs"
+        ],
+        "language": "c++",
+        "public": false
+    }
+}

engine/libs/flecs/examples/cpp/reflection/nested_struct/src/main.cpp

@@ -0,0 +1,34 @@
+#include <nested_struct.h>
+#include <iostream>
+
+struct Point {
+    float x;
+    float y;
+};
+
+struct Line {
+    Point start;
+    Point stop;
+};
+
+int main(int, char *[]) {
+    flecs::world ecs;
+
+    // Register components with reflection data
+    ecs.component<Point>()
+        .member<float>("x")
+        .member<float>("y");
+
+    ecs.component<Line>()
+        .member<Point>("start")
+        .member<Point>("stop");
+
+    // Create entity with Position as usual
+    flecs::entity e = ecs.entity()
+        .set<Line>({{10, 20}, {30, 40}});
+
+    // Convert position component to flecs expression string
+    const Line *ptr = e.get<Line>();
+    std::cout << ecs.to_expr(ptr).c_str() << std::endl;
+    // {start: {x: 10.00, y: 20.00}, stop: {x: 30.00, y: 40.00}}
+}