From 1893a3e11aebd1c137d30418f8fb7b7ca0cd5e32 Mon Sep 17 00:00:00 2001
From: Ivar Scholten <ivar.scholten@protonmail.com>
Date: Sat, 30 Apr 2022 16:47:41 +0200
Subject: [PATCH] er-patcher: init at 1.04-1

---
 pkgs/tools/games/er-patcher/default.nix | 38 +++++++++++++++++++++++++
 pkgs/top-level/all-packages.nix         |  2 ++
 2 files changed, 40 insertions(+)
 create mode 100644 pkgs/tools/games/er-patcher/default.nix

diff --git a/pkgs/tools/games/er-patcher/default.nix b/pkgs/tools/games/er-patcher/default.nix
new file mode 100644
index 000000000000..0b4ff71c4a25
--- /dev/null
+++ b/pkgs/tools/games/er-patcher/default.nix
@@ -0,0 +1,38 @@
+{ lib
+, runCommandLocal
+, fetchFromGitHub
+, python3
+}:
+
+runCommandLocal "er-patcher" rec {
+  pname = "er-patcher";
+  version = "1.04-1";
+
+  src = fetchFromGitHub {
+    owner = "gurrgur";
+    repo = "er-patcher";
+    rev = "v${version}";
+    sha256 = "sha256-SnqYGtdtl1KMwUAWvdPK0heHMBtwpH2Jk6lieng6ngw=";
+  };
+
+  buildInputs = [
+    python3
+  ];
+
+  meta = with lib; {
+    homepage = "https://github.com/gurrgur/er-patcher";
+    changelog = "https://github.com/gurrgur/er-patcher/releases/tag/v${version}";
+    description = "Enhancement patches for Elden Ring adding ultrawide support, custom frame rate limits and more";
+    longDescription = ''
+      A tool aimed at enhancing the experience when playing the game on linux through proton or natively on windows.
+      This tool is based on patching the game executable through hex-edits. However it is done in a safe and non-destructive way,
+      that ensures the patched executable is never run with EAC enabled (unless explicity told to do so). Use at your own risk!
+    '';
+    license = licenses.mit;
+    maintainers = [ maintainers.ivar ];
+  };
+} ''
+  mkdir -p $out/bin
+  install -Dm755 $src/er-patcher $out/bin/er-patcher
+  patchShebangs $out/bin/er-patcher
+''
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ac2e861f227b..178b2e5c88d2 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3460,6 +3460,8 @@ with pkgs;
 
   envsubst = callPackage ../tools/misc/envsubst { };
 
+  er-patcher = callPackage ../tools/games/er-patcher { };
+
   errcheck = callPackage ../development/tools/errcheck {
     buildGoModule = buildGo118Module;
   };