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authorglx <glx@openttd.org>2008-02-28 00:10:08 +0000
committerglx <glx@openttd.org>2008-02-28 00:10:08 +0000
commite9bddd2b4737b91d28ba41a67188bc278363156f (patch)
tree8f346ea0968b32d22e1d885edda375a17c2dfe93 /src
parent19b0f752265c4525784ff89d506fd228f614e0b7 (diff)
downloadopenttd-e9bddd2b4737b91d28ba41a67188bc278363156f.tar.xz
(svn r12303) -Codechange: move IsValidTile() in a more suitable place and make it static inline
Diffstat (limited to 'src')
-rw-r--r--src/landscape.cpp5
-rw-r--r--src/landscape.h2
-rw-r--r--src/tile_map.h29
3 files changed, 19 insertions, 17 deletions
diff --git a/src/landscape.cpp b/src/landscape.cpp
index 6bad6e8a4..957f7b185 100644
--- a/src/landscape.cpp
+++ b/src/landscape.cpp
@@ -919,8 +919,3 @@ TileIndex AdjustTileCoordRandomly(TileIndex a, byte rng)
TileY(a) + (GB(r, 8, 8) * rn * 2 >> 8) - rn
));
}
-
-bool IsValidTile(TileIndex tile)
-{
- return (tile < MapSizeX() * MapMaxY() && TileX(tile) != MapMaxX());
-}
diff --git a/src/landscape.h b/src/landscape.h
index 178579efb..00fe99706 100644
--- a/src/landscape.h
+++ b/src/landscape.h
@@ -26,8 +26,6 @@ byte GetSnowLine(void);
byte HighestSnowLine(void);
void ClearSnowLine(void);
-bool IsValidTile(TileIndex tile);
-
uint GetPartialZ(int x, int y, Slope corners);
uint GetSlopeZ(int x, int y);
void GetSlopeZOnEdge(Slope tileh, DiagDirection edge, int *z1, int *z2);
diff --git a/src/tile_map.h b/src/tile_map.h
index 2723443fb..108cc5adb 100644
--- a/src/tile_map.h
+++ b/src/tile_map.h
@@ -107,6 +107,17 @@ static inline bool IsTileType(TileIndex tile, TileType type)
}
/**
+ * Checks if a tile is valid
+ *
+ * @param tile The tile to check
+ * @return True if the tile is on the map and not one of MP_VOID.
+ */
+static inline bool IsValidTile(TileIndex tile)
+{
+ return tile < MapSize() && !IsTileType(tile, MP_VOID);
+}
+
+/**
* Returns the owner of a tile
*
* This function returns the owner of a tile. This cannot used
@@ -115,14 +126,13 @@ static inline bool IsTileType(TileIndex tile, TileType type)
*
* @param tile The tile to check
* @return The owner of the tile
- * @pre tile < MapSize()
- * @pre The type of the tile must not be MP_HOUSE, MP_VOID and MP_INDUSTRY
+ * @pre IsValidTile(tile)
+ * @pre The type of the tile must not be MP_HOUSE and MP_INDUSTRY
*/
static inline Owner GetTileOwner(TileIndex tile)
{
- assert(tile < MapSize());
+ assert(IsValidTile(tile));
assert(!IsTileType(tile, MP_HOUSE));
- assert(!IsTileType(tile, MP_VOID));
assert(!IsTileType(tile, MP_INDUSTRY));
return (Owner)_m[tile].m1;
@@ -136,14 +146,13 @@ static inline Owner GetTileOwner(TileIndex tile)
*
* @param tile The tile to change the owner status.
* @param owner The new owner.
- * @pre tile < MapSize()
- * @pre The type of the tile must not be MP_HOUSE, MP_VOID and MP_INDUSTRY
+ * @pre IsValidTile(tile)
+ * @pre The type of the tile must not be MP_HOUSE and MP_INDUSTRY
*/
static inline void SetTileOwner(TileIndex tile, Owner owner)
{
- assert(tile < MapSize());
+ assert(IsValidTile(tile));
assert(!IsTileType(tile, MP_HOUSE));
- assert(!IsTileType(tile, MP_VOID));
assert(!IsTileType(tile, MP_INDUSTRY));
_m[tile].m1 = owner;
@@ -165,7 +174,7 @@ static inline bool IsTileOwner(TileIndex tile, Owner owner)
* Set the tropic zone
* @param tile the tile to set the zone of
* @param type the new type
- * @pre assert(tile < MapSize());
+ * @pre tile < MapSize()
*/
static inline void SetTropicZone(TileIndex tile, TropicZone type)
{
@@ -176,7 +185,7 @@ static inline void SetTropicZone(TileIndex tile, TropicZone type)
/**
* Get the tropic zone
* @param tile the tile to get the zone of
- * @pre assert(tile < MapSize());
+ * @pre tile < MapSize()
* @return the zone type
*/
static inline TropicZone GetTropicZone(TileIndex tile)