Create new branch. Goals: Make rocks size patches and frequency configruable. Optional but highly desired: Make rocks denser/more frequent the higher the altitude (make that an optional bool?)

Also the number display is screwed in the settings gui. Same problem as my other patch. Need to compare it to what I did for the other var I did recently (tiles width around rivers to make desert go away) and fix this. This will do to start with.

src/clear_cmd.cpp

@@ -365,7 +365,7 @@ void GenerateClearTile()
 
 		IncreaseGeneratingWorldProgress(GWP_ROUGH_ROCKY);
 		if (IsTileType(tile, MP_CLEAR) && !IsClearGround(tile, CLEAR_DESERT)) {
-			uint j = GB(r, 16, 4) + 5;
+			uint j = GB(r, 16, 4) + _settings_game.game_creation.amount_of_rocks;
 			for (;;) {
 				TileIndex tile_new;
 

src/lang/english.txt

@@ -1459,6 +1459,8 @@ STR_CONFIG_SETTING_VARIETY                                      :Variety distrib
 STR_CONFIG_SETTING_VARIETY_HELPTEXT                             :(TerraGenesis only) Control whether the map contains both mountainous and flat areas. Since this only makes the map flatter, other settings should be set to mountainous
 STR_CONFIG_SETTING_RIVER_AMOUNT                                 :River amount: {STRING2}
 STR_CONFIG_SETTING_RIVER_AMOUNT_HELPTEXT                        :Choose how many rivers to generate
+STR_CONFIG_SETTING_ROCKS_AMOUNT                                 :Rocks amount: {NUM}
+STR_CONFIG_SETTING_ROCKS_AMOUNT_HELPTEXT                        :Choose how many rocky patches to generate
 STR_CONFIG_SETTING_TREE_PLACER                                  :Tree placer algorithm: {STRING2}
 STR_CONFIG_SETTING_TREE_PLACER_HELPTEXT                         :Choose the distribution of trees on the map: 'Original' plants trees uniformly scattered, 'Improved' plants them in groups
 STR_CONFIG_SETTING_TREE_PLACER_NONE                             :None

src/settings_gui.cpp

@@ -1816,6 +1816,7 @@ static SettingsContainer &GetSettingsTree()
 			genworld->Add(new SettingEntry("game_creation.snow_line_height"));
 			genworld->Add(new SettingEntry("game_creation.rainforest_line_height"));
 			genworld->Add(new SettingEntry("game_creation.amount_of_rivers"));
+			genworld->Add(new SettingEntry("game_creation.amount_of_rocks"));
 			genworld->Add(new SettingEntry("game_creation.tree_placer"));
 			genworld->Add(new SettingEntry("vehicle.road_side"));
 			genworld->Add(new SettingEntry("economy.larger_towns"));

src/settings_type.h

@@ -375,6 +375,7 @@ struct GameCreationSettings {
 	byte   min_river_length;                 ///< the minimum river length
 	byte   river_route_random;               ///< the amount of randomicity for the route finding
 	byte   amount_of_rivers;                 ///< the amount of rivers
+	byte   amount_of_rocks;                  ///< the amoutn of rocks
 };
 
 /** Settings related to construction in-game */

src/table/settings.ini

@@ -3750,6 +3750,18 @@ str      = STR_CONFIG_SETTING_RIVER_AMOUNT
 strhelp  = STR_CONFIG_SETTING_RIVER_AMOUNT_HELPTEXT
 strval   = STR_RIVERS_NONE
 
+[SDT_VAR]
+base     = GameSettings
+var      = game_creation.amount_of_rocks
+type     = SLE_UINT8
+def      = 5
+min      = 1
+max      = 255
+interval = 1
+str      = STR_CONFIG_SETTING_ROCKS_AMOUNT
+strhelp  = STR_CONFIG_SETTING_ROCKS_AMOUNT_HELPTEXT
+strval   = STR_JUST_COMMA
+
 ;;game_creation.build_public_roads
 [SDT_NULL]
 length   = 1