From aff49954bf116162d440c48e29bf35fb116d1dd6 Mon Sep 17 00:00:00 2001 From: belugas Date: Fri, 4 May 2007 16:27:13 +0000 Subject: (svn r9779) -Feature: Add the possiblity to choose different road patterns for towns to use. Possible patterns are : No Road (not available in scenario editor) Original (for the nostalgics) Better Roads (same as original, but based on distance of 2 tiles instead of one) 2x2 grids 3x3 grids Patch by skiddl13 --- src/map.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'src/map.h') diff --git a/src/map.h b/src/map.h index 5b11e2627..b97eca52a 100644 --- a/src/map.h +++ b/src/map.h @@ -209,6 +209,23 @@ static inline TileIndex AddTileIndexDiffCWrap(TileIndex tile, TileIndexDiffC dif return TileXY(x, y); } +/** + * Returns the diff between two tiles + * + * @param tile_a from tile + * @param tile_b to tile + * @return the difference between tila_a and tile_b + */ +static inline TileIndexDiffC TileIndexToTileIndexDiffC(TileIndex tile_a, TileIndex tile_b) +{ + TileIndexDiffC difference; + + difference.x = TileX(tile_a) - TileX(tile_b); + difference.y = TileY(tile_a) - TileY(tile_b); + + return difference; +} + /* Functions to calculate distances */ uint DistanceManhattan(TileIndex, TileIndex); ///< also known as L1-Norm. Is the shortest distance one could go over diagonal tracks (or roads) uint DistanceSquare(TileIndex, TileIndex); ///< euclidian- or L2-Norm squared -- cgit v1.2.3-54-g00ecf