cpp/openttd-patchpack/source Changeset - r16727:20d5ef5fc220

Changeset - r16727:20d5ef5fc220

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rubidium - 14 years ago 2010-12-11 19:48:31
rubidium@openttd.org

(svn r21470) -Codechange: add method to get the distance from the edge in a given direction

2 files changed with 18 insertions and 0 deletions:

src/map.cpp

src/map_func.h

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src/map.cpp

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@@ @@ -225,6 +225,23 @@ uint DistanceFromEdge(TileIndex tile) @@
+}
 /*!
  * Gets the distance to the edge of the map in given direction.
  * @param tile the tile to get the distance from
  * @param diagdir the direction of interest
  * @return the distance from the edge in tiles
  */
 uint DistanceFromEdgeDir(TileIndex tile, DiagDirection dir)
+{
 	switch (dir) {
 		case DIAGDIR_NE: return             TileX(tile) - (_settings_game.construction.freeform_edges ? 1 : 0);
 		case DIAGDIR_NW: return             TileY(tile) - (_settings_game.construction.freeform_edges ? 1 : 0);
 		case DIAGDIR_SW: return MapMaxX() - TileX(tile) - 1;
 		case DIAGDIR_SE: return MapMaxY() - TileY(tile) - 1;
 		default: NOT_REACHED();
+	}
+}
 /*!
  * Function performing a search around a center tile and going outward, thus in circle.
  * Although it really is a square search...
  * Every tile will be tested by means of the callback function proc,

src/map_func.h

➞

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@@ @@ -331,6 +331,7 @@ uint DistanceSquare(TileIndex, TileIndex @@
 uint DistanceMax(TileIndex, TileIndex); ///< also known as L-Infinity-Norm
 uint DistanceMaxPlusManhattan(TileIndex, TileIndex); ///< Max + Manhattan
 uint DistanceFromEdge(TileIndex); ///< shortest distance from any edge of the map
 uint DistanceFromEdgeDir(TileIndex, DiagDirection); ///< distance from the map edge in given direction
 /**
  * A loop which iterates to a square of tiles

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