(svn r26884) -Change: scale the NewGRF's snow line level according to the configured maximum map height

src/newgrf.cpp

@@ -2696,13 +2696,13 @@ static ChangeInfoResult GlobalVarChangeInfo(uint gvid, int numinfo, int prop, By
 						for (uint j = 0; j < SNOW_LINE_DAYS; j++) {
 							table[i][j] = buf->ReadByte();
 							if (_cur.grffile->grf_version >= 8) {
-								if (table[i][j] != 0xFF) table[i][j] = table[i][j] * (1 + MAX_TILE_HEIGHT) / 256;
+								if (table[i][j] != 0xFF) table[i][j] = table[i][j] * (1 + _settings_game.construction.max_heightlevel) / 256;
 							} else {
 								if (table[i][j] >= 128) {
 									/* no snow */
 									table[i][j] = 0xFF;
 								} else {
-									table[i][j] = table[i][j] * (1 + MAX_TILE_HEIGHT) / 128;
+									table[i][j] = table[i][j] * (1 + _settings_game.construction.max_heightlevel) / 128;
 								}
 							}
 						}
@@ -5827,7 +5827,7 @@ bool GetGlobalVariable(byte param, uint32 *value, const GRFFile *grffile)
 
 		case 0x20: { // snow line height
 			byte snowline = GetSnowLine();
-			if (_settings_game.game_creation.landscape == LT_ARCTIC && snowline <= MAX_TILE_HEIGHT) {
+			if (_settings_game.game_creation.landscape == LT_ARCTIC && snowline <= _settings_game.construction.max_heightlevel) {
 				*value = Clamp(snowline * (grffile->grf_version >= 8 ? 1 : TILE_HEIGHT), 0, 0xFE);
 			} else {
 				/* No snow */
@@ -6484,7 +6484,7 @@ static uint32 GetPatchVariable(uint8 param)
 
 		/* The maximum height of the map. */
 		case 0x14:
-			return MAX_TILE_HEIGHT;
+			return _settings_game.construction.max_heightlevel;
 
 		/* Extra foundations base sprite */
 		case 0x15:

src/settings_type.h

@@ -278,7 +278,7 @@ struct GameCreationSettings {
 	uint8  map_y;                            ///< Y size of map
 	byte   land_generator;                   ///< the landscape generator
 	byte   oil_refinery_limit;               ///< distance oil refineries allowed from map edge
-	byte   snow_line_height;                 ///< a number 0-15 that configured snow line height
+	byte   snow_line_height;                 ///< the configured snow line height
 	byte   tgen_smoothness;                  ///< how rough is the terrain from 0-3
 	byte   tree_placer;                      ///< the tree placer algorithm
 	byte   heightmap_rotation;               ///< rotation director for the heightmap