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authorfrosch <frosch@openttd.org>2008-04-02 14:13:15 +0000
committerfrosch <frosch@openttd.org>2008-04-02 14:13:15 +0000
commitfa68e5f77026835b02e1dc3d8eef09b57aac8249 (patch)
tree1c88a7fa03add5b3c621da72df5f777b12fdd26c /src
parent5e5e074a5dc68ed495de3234fda15989db34e23d (diff)
downloadopenttd-fa68e5f77026835b02e1dc3d8eef09b57aac8249.tar.xz
(svn r12541) -Codechange: Declare Slope enum as bit set, and remove some (then) unneeded casts.
Diffstat (limited to 'src')
-rw-r--r--src/slope_func.h6
-rw-r--r--src/slope_type.h1
-rw-r--r--src/terraform_cmd.cpp12
-rw-r--r--src/water_cmd.cpp6
4 files changed, 13 insertions, 12 deletions
diff --git a/src/slope_func.h b/src/slope_func.h
index 6185d44d7..7bfa5e52d 100644
--- a/src/slope_func.h
+++ b/src/slope_func.h
@@ -54,7 +54,7 @@ static inline bool IsHalftileSlope(Slope s)
*/
static inline Slope RemoveHalftileSlope(Slope s)
{
- return (Slope)(s & ~SLOPE_HALFTILE_MASK);
+ return s & ~SLOPE_HALFTILE_MASK;
}
/**
@@ -71,7 +71,7 @@ static inline Slope RemoveHalftileSlope(Slope s)
static inline Slope ComplementSlope(Slope s)
{
assert(!IsSteepSlope(s) && !IsHalftileSlope(s));
- return (Slope)(0xF ^ s);
+ return s ^ SLOPE_ELEVATED;
}
/**
@@ -200,7 +200,7 @@ static inline Slope SlopeWithThreeCornersRaised(Corner corner)
*/
static inline Slope SteepSlope(Corner corner)
{
- return (Slope)(SLOPE_STEEP | SlopeWithThreeCornersRaised(OppositeCorner(corner)));
+ return SLOPE_STEEP | SlopeWithThreeCornersRaised(OppositeCorner(corner));
}
/**
diff --git a/src/slope_type.h b/src/slope_type.h
index a61a09182..2ba12bf38 100644
--- a/src/slope_type.h
+++ b/src/slope_type.h
@@ -70,6 +70,7 @@ enum Slope {
SLOPE_HALFTILE_E = SLOPE_HALFTILE | (CORNER_E << 6), ///< the east halftile is leveled (non continuous slope)
SLOPE_HALFTILE_N = SLOPE_HALFTILE | (CORNER_N << 6), ///< the north halftile is leveled (non continuous slope)
};
+DECLARE_ENUM_AS_BIT_SET(Slope)
/**
diff --git a/src/terraform_cmd.cpp b/src/terraform_cmd.cpp
index 27c8eb481..5e7e486b5 100644
--- a/src/terraform_cmd.cpp
+++ b/src/terraform_cmd.cpp
@@ -287,11 +287,11 @@ CommandCost CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
uint z_max = max(max(z_N, z_W), max(z_S, z_E));
/* Compute tile slope */
- uint tileh = (z_max > z_min + 1 ? SLOPE_STEEP : SLOPE_FLAT);
- if (z_W > z_min) tileh += SLOPE_W;
- if (z_S > z_min) tileh += SLOPE_S;
- if (z_E > z_min) tileh += SLOPE_E;
- if (z_N > z_min) tileh += SLOPE_N;
+ Slope tileh = (z_max > z_min + 1 ? SLOPE_STEEP : SLOPE_FLAT);
+ if (z_W > z_min) tileh |= SLOPE_W;
+ if (z_S > z_min) tileh |= SLOPE_S;
+ if (z_E > z_min) tileh |= SLOPE_E;
+ if (z_N > z_min) tileh |= SLOPE_N;
/* Check if bridge would take damage */
if (direction == 1 && MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) &&
@@ -305,7 +305,7 @@ CommandCost CmdTerraformLand(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
return_cmd_error(STR_1002_EXCAVATION_WOULD_DAMAGE);
}
/* Check tiletype-specific things, and add extra-cost */
- CommandCost cost = _tile_type_procs[GetTileType(tile)]->terraform_tile_proc(tile, flags | DC_AUTO, z_min * TILE_HEIGHT, (Slope) tileh);
+ CommandCost cost = _tile_type_procs[GetTileType(tile)]->terraform_tile_proc(tile, flags | DC_AUTO, z_min * TILE_HEIGHT, tileh);
if (CmdFailed(cost)) {
_terraform_err_tile = tile;
return cost;
diff --git a/src/water_cmd.cpp b/src/water_cmd.cpp
index 349d0cab8..eba83f1d3 100644
--- a/src/water_cmd.cpp
+++ b/src/water_cmd.cpp
@@ -1040,7 +1040,7 @@ void TileLoop_Water(TileIndex tile)
if (IsTileType(dest, MP_WATER)) continue;
uint z_dest;
- Slope slope_dest = (Slope)(GetFoundationSlope(dest, &z_dest) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP);
+ Slope slope_dest = GetFoundationSlope(dest, &z_dest) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP;
if (z_dest > 0) continue;
if (!HasBit(_flood_from_dirs[slope_dest], ReverseDir(dir))) continue;
@@ -1050,7 +1050,7 @@ void TileLoop_Water(TileIndex tile)
break;
case FLOOD_DRYUP: {
- Slope slope_here = (Slope)(GetFoundationSlope(tile, NULL) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP);
+ Slope slope_here = GetFoundationSlope(tile, NULL) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP;
uint check_dirs = _flood_from_dirs[slope_here];
uint dir;
FOR_EACH_SET_BIT(dir, check_dirs) {
@@ -1097,7 +1097,7 @@ void ConvertGroundTilesIntoWaterTiles()
uint dir;
FOR_EACH_SET_BIT(dir, check_dirs) {
TileIndex dest = TILE_ADD(tile, TileOffsByDir((Direction)dir));
- Slope slope_dest = (Slope)(GetTileSlope(dest, NULL) & ~SLOPE_STEEP);
+ Slope slope_dest = GetTileSlope(dest, NULL) & ~SLOPE_STEEP;
if (slope_dest == SLOPE_FLAT || IsSlopeWithOneCornerRaised(slope_dest)) {
MakeShore(tile);
break;