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(svn r9371) -Feature: Add support for variable snow lines in the arctic climate, supplied

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by newgrf files. When this is enabled forests cannot be built below the highest
snow line, and farms can't be built above it. Houses still use the
_opt.snow_line so they are all consistent, so to make them respect the snowline
you may want to use some newhouses features as well.
This commit is contained in:
maedhros
2007-03-20 13:47:00 +00:00
parent 7812f7fd0a
commit 48f2bf9bb1
13 changed files with 122 additions and 14 deletions
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7
src/industry_cmd.cpp
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@@ -12,6 +12,7 @@
#include "table/sprites.h"
#include "map.h"
#include "tile.h"
#include "landscape.h"
#include "viewport.h"
#include "command.h"
#include "industry.h"
@@ -814,7 +815,7 @@ static void PlantFarmField(TileIndex tile, IndustryID industry)
int type;
if (_opt.landscape == LT_HILLY) {
if (GetTileZ(tile) + TILE_HEIGHT * 2 >= _opt.snow_line)
if (GetTileZ(tile) + TILE_HEIGHT * 2 >= GetSnowLine())
return;
}
@@ -1016,7 +1017,7 @@ static bool CheckNewIndustry_NULL(TileIndex tile)
static bool CheckNewIndustry_Forest(TileIndex tile)
{
if (_opt.landscape == LT_HILLY) {
if (GetTileZ(tile) < _opt.snow_line + TILE_HEIGHT * 2U) {
if (GetTileZ(tile) < HighestSnowLine() + TILE_HEIGHT * 2U) {
_error_message = STR_4831_FOREST_CAN_ONLY_BE_PLANTED;
return false;
}
@@ -1048,7 +1049,7 @@ static bool CheckNewIndustry_OilRig(TileIndex tile)
static bool CheckNewIndustry_Farm(TileIndex tile)
{
if (_opt.landscape == LT_HILLY) {
if (GetTileZ(tile) + TILE_HEIGHT * 2 >= _opt.snow_line) {
if (GetTileZ(tile) + TILE_HEIGHT * 2 >= HighestSnowLine()) {
_error_message = STR_0239_SITE_UNSUITABLE;
return false;
}