initial commit

src/core/Logger.lua

@@ -0,0 +1,19 @@
+-- Minimal logger; warnings are collected so debug overlays can show them.
+
+local Logger = { history = {} }
+
+local function emit(level, fmt, ...)
+  local msg = select("#", ...) > 0 and string.format(fmt, ...) or fmt
+  local line = string.format("[%s] %s", level, msg)
+  print(line)
+  table.insert(Logger.history, line)
+  if #Logger.history > 200 then
+    table.remove(Logger.history, 1)
+  end
+end
+
+function Logger.info(fmt, ...) emit("info", fmt, ...) end
+function Logger.warn(fmt, ...) emit("warn", fmt, ...) end
+function Logger.error(fmt, ...) emit("error", fmt, ...) end
+
+return Logger