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(svn r20125) -Change: [NewGRF] If a tile has a snow-flag in the map array, use that for Terrain Type variables, instead of always only using the tile Z position. Also use the maximum Z of a tile for tiles which usually have levelling foundations (stations, houses, industries, unmovables).

This commit is contained in:
frosch 2010-07-11 17:11:14 +00:00
parent 987417e665
commit 19fb8ba6f8
1 changed files with 45 additions and 1 deletions
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46
src/newgrf_commons.cpp
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@ -17,8 +17,10 @@
#include "industrytype.h"
#include "newgrf.h"
#include "newgrf_commons.h"
#include "clear_map.h"
#include "station_map.h"
#include "tree_map.h"
#include "tunnelbridge_map.h"
#include "core/mem_func.hpp"
/** Constructor of generic class
@ -284,7 +286,49 @@ uint32 GetTerrainType(TileIndex tile)
{
switch (_settings_game.game_creation.landscape) {
case LT_TROPIC: return GetTropicZone(tile);
case LT_ARCTIC: return GetTileZ(tile) > GetSnowLine() ? 4 : 0;
case LT_ARCTIC: {
bool has_snow;
switch (GetTileType(tile)) {
case MP_CLEAR:
has_snow = IsSnowTile(tile);
break;
case MP_RAILWAY: {
RailGroundType ground = GetRailGroundType(tile);
has_snow = (ground == RAIL_GROUND_ICE_DESERT);
break;
}
case MP_ROAD:
has_snow = IsOnSnow(tile);
break;
case MP_TREES: {
TreeGround ground = GetTreeGround(tile);
has_snow = (ground == TREE_GROUND_SNOW_DESERT || ground == TREE_GROUND_ROUGH_SNOW);
break;
}
case MP_TUNNELBRIDGE:
has_snow = HasTunnelBridgeSnowOrDesert(tile);
break;
case MP_STATION:
case MP_HOUSE:
case MP_INDUSTRY:
case MP_UNMOVABLE:
/* These tiles usually have a levelling foundation. So use max Z */
has_snow = (GetTileMaxZ(tile) > GetSnowLine());
break;
case MP_WATER:
has_snow = (GetTileZ(tile) > GetSnowLine());
break;
default: NOT_REACHED();
}
return has_snow ? 4 : 0;
}
default: return 0;
}
}