From 1e715272b6d7f0aa11347b21048ad301f908850a Mon Sep 17 00:00:00 2001
From: Jesse Talavera-Greenberg <jesse@jesse.tg>
Date: Tue, 7 Mar 2023 09:21:43 -0500
Subject: [PATCH] Add some directories to environment

---
 src/libretro/environment.hpp |  5 +++++
 src/libretro/libretro.cpp    | 17 ++++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/libretro/environment.hpp b/src/libretro/environment.hpp
index d793e9e..7657d8c 100644
--- a/src/libretro/environment.hpp
+++ b/src/libretro/environment.hpp
@@ -5,6 +5,8 @@
 #ifndef MELONDS_DS_ENVIRONMENT_HPP
 #define MELONDS_DS_ENVIRONMENT_HPP
 
+#include <string>
+
 namespace retro {
     /// For use by other parts of the core
     bool environment(unsigned cmd, void *data);
@@ -12,6 +14,9 @@ namespace retro {
     void log(enum retro_log_level level, const char *fmt, ...);
 
     bool supports_bitmasks();
+
+    const std::string& base_directory();
+    const std::string& save_directory();
 }
 
 #endif //MELONDS_DS_ENVIRONMENT_HPP
diff --git a/src/libretro/libretro.cpp b/src/libretro/libretro.cpp
index 3c0ec74..530c6b8 100644
--- a/src/libretro/libretro.cpp
+++ b/src/libretro/libretro.cpp
@@ -1,9 +1,24 @@
 #include <libretro.h>
 
+#include "environment.hpp"
 #include "libretro.hpp"
 
-PUBLIC_SYMBOL void retro_init(void) {
+namespace retro {
 
+    static std::string _base_directory;
+    static std::string _save_directory;
+}
+
+
+PUBLIC_SYMBOL void retro_init(void) {
+    const char *dir = nullptr;
+
+    srand(time(nullptr));
+    if (retro::environment(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
+        retro::_base_directory = dir;
+
+    if (retro::environment(RETRO_ENVIRONMENT_GET_SAVE_DIRECTORY, &dir) && dir)
+        retro::_save_directory = dir;
 }
 
 PUBLIC_SYMBOL void retro_deinit(void) {