Add Peaceful Mode To Options Screen

mods/src/options/options.cpp

@@ -127,6 +127,12 @@ static void OptionsPane_unknown_toggle_creating_function_injection(OptionsPane *
         std::string cpp_string = "3D Anaglyph";
         OptionsPane_unknown_toggle_creating_function(options_pane, group_id, &cpp_string, &Options_Option_ANAGLYPH);
     }
+
+    // Add Peaceful Mode
+    if (option == &Options_Option_SERVER_VISIBLE) {
+        std::string cpp_string = "Peaceful mode";
+        OptionsPane_unknown_toggle_creating_function(options_pane, group_id, &cpp_string, &Options_Option_DIFFICULTY);
+    }
 }
 
 // Add Missing Options To Options::getBooleanValue
@@ -134,12 +140,28 @@ static bool Options_getBooleanValue_injection(Options *options, Options_Option *
     // Check
     if (option == &Options_Option_GRAPHICS) {
         return options->fancy_graphics;
+    } else if (option == &Options_Option_DIFFICULTY) {
+        return options->game_difficulty == 0;
     } else {
         // Call Original Method
         return Options_getBooleanValue(options, option);
     }
 }
 
+// Fix Difficulty When Toggling
+static void OptionButton_toggle_Options_save_injection(Options *self) {
+    // Fix Value
+    if (self->game_difficulty == 1) {
+        // Disable Peaceful
+        self->game_difficulty = 2;
+    } else if (self->game_difficulty == 3) {
+        // Switch To Peaceful
+        self->game_difficulty = 0;
+    }
+    // Call Original Method
+    Options_save(self);
+}
+
 // Init C++
 void _init_options_cpp() {
     // NOP
@@ -164,6 +186,9 @@ void _init_options_cpp() {
 
         // Add Missing Options To Options::getBooleanValue
         overwrite_calls((void *) Options_getBooleanValue, (void *) Options_getBooleanValue_injection);
+
+        // Fix Difficulty When Toggling
+        overwrite_call((void *) 0x1cd00, (void *) OptionButton_toggle_Options_save_injection);
     }
 
     // Actually Save options.txt

symbols/src/game/options/Options.def

@@ -3,6 +3,7 @@ size 0x110;
 method void initDefaultValue() = 0x18a54;
 method bool getBooleanValue(Options_Option *option) = 0x1cd74;
 method void addOptionToSaveOutput(std::vector<std::string> *data, std::string option, int value) = 0x195e4;
+method void save() = 0x1966c;
 
 property OptionsFile options_file = 0x10c;
 property bool fancy_graphics = 0x17;

symbols/src/game/options/Options_Option.def

@@ -1,3 +1,5 @@
 static-property Options_Option GRAPHICS = 0x136c2c;
 static-property Options_Option AMBIENT_OCCLUSION = 0x136c38;
 static-property Options_Option ANAGLYPH = 0x136c08;
+static-property Options_Option DIFFICULTY = 0x136c20;
+static-property Options_Option SERVER_VISIBLE = 0x136c68;