From f8be9ffe4cebe3bd544c8fb8271f246766217333 Mon Sep 17 00:00:00 2001
From: Wayward Heart <91356680+WaywardHeart@users.noreply.github.com>
Date: Thu, 26 Oct 2023 21:44:42 -0500
Subject: [PATCH] Add a "patches" option to the config.

---
 mkxp.json           | 8 ++++++++
 src/config.cpp      | 2 ++
 src/config.h        | 1 +
 src/sharedstate.cpp | 3 +++
 4 files changed, 14 insertions(+)

diff --git a/mkxp.json b/mkxp.json
index 8a3649c7..4e9efce9 100644
--- a/mkxp.json
+++ b/mkxp.json
@@ -332,6 +332,14 @@
     //         "/path/to/rtp2.zip",
     //         "/path/to/game.rgssad"],
 
+    // Similar to the RTP option, except items are loaded before
+    // the game archive and folder, for incremental game updates
+    // or modding.
+    // (default: none)
+    //
+    // "patches": ["/path/to/patch1.zip",
+    //         "/path/to/patch2"],
+
 
     // Use the script's name as filename in warnings and error messages
     // (default: enabled)
diff --git a/src/config.cpp b/src/config.cpp
index 58932abc..b66bebf9 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -181,6 +181,7 @@ void Config::read(int argc, char *argv[]) {
         {"useScriptNames", 1},
         {"preloadScript", json::array({})},
         {"RTP", json::array({})},
+        {"patches", json::array({})},
         {"fontSub", json::array({})},
         {"rubyLoadpath", json::array({})},
         {"JITEnable", false},
@@ -297,6 +298,7 @@ try { exp } catch (...) {}
     
     fillStringVec(opts["preloadScript"], preloadScripts);
     fillStringVec(opts["RTP"], rtps);
+    fillStringVec(opts["patches"], patches);
     fillStringVec(opts["fontSub"], fontSubs);
     fillStringVec(opts["rubyLoadpath"], rubyLoadpaths);
     
diff --git a/src/config.h b/src/config.h
index 328df348..9f7273be 100644
--- a/src/config.h
+++ b/src/config.h
@@ -107,6 +107,7 @@ struct Config {
     std::vector<std::string> launchArgs;
     std::vector<std::string> preloadScripts;
     std::vector<std::string> rtps;
+    std::vector<std::string> patches;
     
     std::vector<std::string> fontSubs;
     
diff --git a/src/sharedstate.cpp b/src/sharedstate.cpp
index c1ee14ab..f11153ec 100644
--- a/src/sharedstate.cpp
+++ b/src/sharedstate.cpp
@@ -125,6 +125,9 @@ struct SharedStatePrivate
 
 		std::string archPath = config.execName + gameArchExt();
 
+		for (size_t i = 0; i < config.patches.size(); ++i)
+			fileSystem.addPath(config.patches[i].c_str());
+
 		/* Check if a game archive exists */
 		FILE *tmp = fopen(archPath.c_str(), "rb");
 		if (tmp)