gronod/OpenTTD
1
0
Fork 0
mirror of https://github.com/OpenTTD/OpenTTD.git synced 2025-01-23 15:44:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

(svn r3791) Replace home grown direction handling for placing lighthouses by standard DiagDir

Browse Source
This commit is contained in:
tron 2006-03-08 12:26:56 +00:00
parent e68120034c
commit 9b53fb9e03
1 changed files with 16 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
unmovable_cmd.c
View File

@ -308,12 +308,6 @@ static void ClickTile_Unmovable(TileIndex tile)
}
}
static const TileIndexDiffC _tile_add[] = {
{ 1, 0},
{ 0, 1},
{-1, 0},
{ 0, -1}
};
/* checks, if a radio tower is within a 9x9 tile square around tile */
static bool checkRadioTowerNearby(TileIndex tile)
@ -332,9 +326,9 @@ void GenerateUnmovables(void)
{
int i,j;
TileIndex tile;
uint32 r;
int dir;
uint h;
uint maxx;
uint maxy;
if (_opt.landscape == LT_CANDY) return;
@ -356,20 +350,26 @@ void GenerateUnmovables(void)
/* add lighthouses */
i = ScaleByMapSize1D((Random() & 3) + 7);
maxx = MapMaxX();
maxy = MapMaxY();
do {
uint32 r;
DiagDirection dir;
restart:
r = Random();
dir = r >> 30;
r %= (dir == 0 || dir == 2) ? MapMaxY() : MapMaxX();
tile =
(dir == 0) ? TileXY(0, r) : 0 + // left
(dir == 1) ? TileXY(r, 0) : 0 + // top
(dir == 2) ? TileXY(MapMaxX(), r) : 0 + // right
(dir == 3) ? TileXY(r, MapMaxY()) : 0; // bottom
dir = GB(r, 30, 2);
switch (dir) {
default:
case DIAGDIR_NE: tile = TileXY(maxx, r % maxy); break;
case DIAGDIR_SE: tile = TileXY(r % maxx, 0); break;
case DIAGDIR_SW: tile = TileXY(0, r % maxy); break;
case DIAGDIR_NW: tile = TileXY(r % maxx, maxy); break;
}
j = 20;
do {
if (--j == 0) goto restart;
tile = TILE_MASK(tile + ToTileIndexDiff(_tile_add[dir]));
tile = TILE_MASK(tile + TileOffsByDir(dir));
} while (!(IsTileType(tile, MP_CLEAR) && GetTileSlope(tile, &h) == 0 && h <= 16));
assert(tile == TILE_MASK(tile));