(svn r26880) -Add: stub settings for limiting bridge and map height

src/cheat_type.h

@@ -36,6 +36,7 @@ struct Cheats {
 	Cheat change_date;      ///< changes date ingame
 	Cheat setup_prod;       ///< setup raw-material production in game
 	Cheat dummy3;           ///< empty cheat (enable running el-engines on normal rail)
+	Cheat edit_max_hl;      ///< edit the maximum heightlevel
 };
 
 extern Cheats _cheats;

src/saveload/afterload.cpp

@@ -583,6 +583,8 @@ bool AfterLoadGame()
 	}
 
 	if (IsSavegameVersionBefore(194)) {
+		_settings_game.construction.max_heightlevel = 15;
+
 		/* In old savegame versions, the heightlevel was coded in bits 0..3 of the type field */
 		for (TileIndex t = 0; t < map_size; t++) {
 			_m[t].height = GB(_m[t].type, 0, 4);

src/settings_type.h

@@ -296,9 +296,11 @@ struct GameCreationSettings {
 
 /** Settings related to construction in-game */
 struct ConstructionSettings {
+	uint8  max_heightlevel;                  ///< maximum allowed heightlevel
 	bool   build_on_slopes;                  ///< allow building on slopes
 	bool   autoslope;                        ///< allow terraforming under things
 	uint16 max_bridge_length;                ///< maximum length of bridges
+	byte   max_bridge_height;                ///< maximum height of bridges
 	uint16 max_tunnel_length;                ///< maximum length of tunnels
 	byte   train_signal_side;                ///< show signals on left / driving / right side
 	bool   extra_dynamite;                   ///< extra dynamite

src/table/settings.ini

@@ -377,6 +377,19 @@ proc     = CheckRoadSide
 
 ; Construction
 
+[SDT_VAR]
+base     = GameSettings
+var      = construction.max_heightlevel
+type     = SLE_UINT8
+from     = 194
+guiflags = SGF_NEWGAME_ONLY | SGF_NO_NETWORK
+def      = DEF_MAX_HEIGHTLEVEL
+min      = MIN_MAX_HEIGHTLEVEL
+max      = MAX_MAX_HEIGHTLEVEL
+interval = 1
+strval   = STR_JUST_INT
+cat      = SC_BASIC
+
 [SDT_BOOL]
 base     = GameSettings
 var      = construction.build_on_slopes
@@ -494,6 +507,19 @@ str      = STR_CONFIG_SETTING_MAX_BRIDGE_LENGTH
 strhelp  = STR_CONFIG_SETTING_MAX_BRIDGE_LENGTH_HELPTEXT
 strval   = STR_CONFIG_SETTING_TILE_LENGTH
 
+[SDT_VAR]
+base     = GameSettings
+var      = construction.max_bridge_height
+type     = SLE_UINT8
+from     = 194
+guiflags = SGF_NO_NETWORK
+def      = 12
+min      = 1
+max      = MAX_TILE_HEIGHT
+interval = 1
+strval   = STR_JUST_COMMA
+cat      = SC_EXPERT
+
 [SDT_VAR]
 base     = GameSettings
 var      = construction.max_tunnel_length

src/tile_type.h

@@ -19,6 +19,10 @@ static const uint TILE_HEIGHT    =  8;            ///< The standard height-diffe
 
 static const uint MAX_TILE_HEIGHT     = 15;                    ///< Maximum allowed tile height
 
+static const uint MIN_MAX_HEIGHTLEVEL = 15;                    ///< Lower bound of maximum allowed heightlevel (in the construction settings)
+static const uint DEF_MAX_HEIGHTLEVEL = 15;                    ///< Default maximum allowed heightlevel (in the construction settings)
+static const uint MAX_MAX_HEIGHTLEVEL = MAX_TILE_HEIGHT;       ///< Upper bound of maximum allowed heightlevel (in the construction settings)
+
 static const uint MIN_SNOWLINE_HEIGHT = 2;                     ///< Minimum snowline height
 static const uint DEF_SNOWLINE_HEIGHT = 7;                     ///< Default snowline height
 static const uint MAX_SNOWLINE_HEIGHT = (MAX_TILE_HEIGHT - 2); ///< Maximum allowed snowline height