Initial import: LibreForts (M0-M5 in progress)

Open-source Forts clone: custom C++20 engine + data-driven (Lua) 2D physics
artillery RTS.

- Building: node/strut graph on a stiff mass-spring solver (canon Forts model),
  triangulation rigidity, axial + 30-degree angle-stress breaking, cascading
  collapse, fire (DoT + spread), ground destroys debris.
- Weapons (M4): cannon (ballistic) + laser (beam/ignite) with select-and-aim-in-
  arc UX; splash / beam damage; bg-brace passthrough.
- Devices + economy (M5): reactors + win/loss + restart, mines/turbines/battery,
  metal deposits, storage caps, per-shot energy cost.
- Data-driven via Lua/sol2 with a layered mod loader; enemy-fort scenario mod.
- Renderer: SDL3 + textures + ImGui dev UI. stb_image + ImGui vendored.
- Assets: CC0 placeholders only; real game art loaded at runtime from the user's
  own install via forts: paths (bring-your-own; nothing copyrighted committed).

See README.md / CLAUDE.md and research/ + requirements/ for detail.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/engine/script.cpp b/src/engine/script.cpp
new file mode 100644
index 0000000..13d7cf5
--- /dev/null
+++ b/src/engine/script.cpp
@@ -0,0 +1,18 @@
+#include "engine/script.hpp"
+#include <cstdio>
+
+ScriptEngine::ScriptEngine() {
+    lua_.open_libraries(sol::lib::base, sol::lib::table, sol::lib::string,
+                        sol::lib::math, sol::lib::os);
+}
+
+bool ScriptEngine::run_file(const std::string& path) {
+    sol::protected_function_result r =
+        lua_.safe_script_file(path, sol::script_pass_on_error);
+    if (!r.valid()) {
+        sol::error err = r;
+        fprintf(stderr, "Lua error (%s): %s\n", path.c_str(), err.what());
+        return false;
+    }
+    return true;
+}