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(svn r20418) -Fix [FS#4017](r20125): During world generation the snow-mapbits are not yet available, so test the snowline variable directly (as before).

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frosch 2010-08-08 21:34:19 +00:00
parent cd5180212e
commit cc8d0af77c
1 changed files with 12 additions and 0 deletions
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12
src/newgrf_commons.cpp
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@ -22,6 +22,7 @@
#include "station_map.h"
#include "tree_map.h"
#include "tunnelbridge_map.h"
#include "genworld.h"
#include "core/mem_func.hpp"
/**
@ -304,26 +305,36 @@ uint32 GetTerrainType(TileIndex tile, bool upper_halftile)
bool has_snow;
switch (GetTileType(tile)) {
case MP_CLEAR:
/* During map generation the snowstate may not be valid yet, as the tileloop may not have run yet. */
if (_generating_world) goto genworld;
has_snow = IsSnowTile(tile) && GetClearDensity(tile) >= 2;
break;
case MP_RAILWAY: {
/* During map generation the snowstate may not be valid yet, as the tileloop may not have run yet. */
if (_generating_world) goto genworld; // we do not care about foundations here
RailGroundType ground = GetRailGroundType(tile);
has_snow = (ground == RAIL_GROUND_ICE_DESERT || (upper_halftile && ground == RAIL_GROUND_HALF_SNOW));
break;
}
case MP_ROAD:
/* During map generation the snowstate may not be valid yet, as the tileloop may not have run yet. */
if (_generating_world) goto genworld; // we do not care about foundations here
has_snow = IsOnSnow(tile);
break;
case MP_TREES: {
/* During map generation the snowstate may not be valid yet, as the tileloop may not have run yet. */
if (_generating_world) goto genworld;
TreeGround ground = GetTreeGround(tile);
has_snow = (ground == TREE_GROUND_SNOW_DESERT || ground == TREE_GROUND_ROUGH_SNOW) && GetTreeDensity(tile) >= 2;
break;
}
case MP_TUNNELBRIDGE:
/* During map generation the snowstate may not be valid yet, as the tileloop may not have run yet. */
if (_generating_world) goto genworld; // we do not care about foundations here
has_snow = HasTunnelBridgeSnowOrDesert(tile);
break;
@ -337,6 +348,7 @@ uint32 GetTerrainType(TileIndex tile, bool upper_halftile)
case MP_VOID:
case MP_WATER:
genworld:
has_snow = (GetTileZ(tile) > GetSnowLine());
break;