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(svn r9730) -Feature: [NewGRF] Add support for miscellaneous grf feature bit 1 - paved roads on desert tiles.

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maedhros
2007-04-27 21:35:02 +00:00
parent 8491e15416
commit 1d05573950
3 changed files with 38 additions and 4 deletions
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25
src/road_cmd.cpp
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@@ -26,6 +26,7 @@
#include "sound.h"
#include "yapf/yapf.h"
#include "depot.h"
#include "newgrf.h"
static uint CountRoadBits(RoadBits r)
@@ -661,6 +662,23 @@ const byte _road_sloped_sprites[14] = {
0, 0
};
/**
* Whether to draw unpaved roads regardless of the town zone.
* By default, OpenTTD always draws roads as unpaved if they are on a desert
* tile or above the snowline. Newgrf files, however, can set a bit that allows
* paved roads to be built on desert tiles as they would be on grassy tiles.
*
* @param tile The tile the road is on
* @param roadside What sort of road this is
* @return True if the road should be drawn unpaved regardless of the roadside.
*/
static bool AlwaysDrawUnpavedRoads(TileIndex tile, Roadside roadside)
{
return (IsOnSnow(tile) &&
!(_opt.landscape == LT_TROPIC && HasGrfMiscBit(GMB_DESERT_PAVED_ROADS) &&
roadside != ROADSIDE_BARREN && roadside != ROADSIDE_GRASS && roadside != ROADSIDE_GRASS_ROAD_WORKS));
}
/**
* Draw ground sprite and road pieces
* @param ti TileInfo
@@ -687,7 +705,7 @@ static void DrawRoadBits(TileInfo* ti)
roadside = GetRoadside(ti->tile);
if (IsOnSnow(ti->tile)) {
if (AlwaysDrawUnpavedRoads(ti->tile, roadside)) {
image += 19;
} else {
switch (roadside) {
@@ -729,6 +747,7 @@ static void DrawTile_Road(TileInfo *ti)
case ROAD_TILE_CROSSING: {
SpriteID image;
SpriteID pal = PAL_NONE;
Roadside roadside = GetRoadside(ti->tile);
if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, ti->tileh);
@@ -737,10 +756,10 @@ static void DrawTile_Road(TileInfo *ti)
if (GetCrossingRoadAxis(ti->tile) == AXIS_X) image++;
if (IsCrossingBarred(ti->tile)) image += 2;
if (IsOnSnow(ti->tile)) {
if (AlwaysDrawUnpavedRoads(ti->tile, roadside)) {
image += 8;
} else {
switch (GetRoadside(ti->tile)) {
switch (roadside) {
case ROADSIDE_BARREN: pal = PALETTE_TO_BARE_LAND; break;
case ROADSIDE_GRASS: break;
default: image += 4; break; // Paved