cpp/openttd-patchpack/source Changeset - r11863:a66d7566b05d

Changeset - r11863:a66d7566b05d

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yexo - 15 years ago 2009-05-09 19:45:02
yexo@openttd.org

(svn r16262) -Fix [NoAI]: Check slopes passed to the API better for validity

1 file changed with 3 insertions and 5 deletions:

src/ai/api/ai_tile.cpp

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src/ai/api/ai_tile.cpp

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@@ @@ -73,14 +73,14 @@ @@
 /* static */ bool AITile::IsSteepSlope(Slope slope)
+{
-	if (slope == SLOPE_INVALID) return false;
+	if ((slope & ~(SLOPE_ELEVATED | SLOPE_STEEP | SLOPE_HALFTILE_MASK)) != 0) return false;
 	return ::IsSteepSlope((::Slope)slope);
+}
 /* static */ bool AITile::IsHalftileSlope(Slope slope)
+{
-	if (slope == SLOPE_INVALID) return false;
+	if ((slope & ~(SLOPE_ELEVATED | SLOPE_STEEP | SLOPE_HALFTILE_MASK)) != 0) return false;
 	return ::IsHalftileSlope((::Slope)slope);
+}
@@ @@ -124,9 +124,7 @@ @@
 /* static */ AITile::Slope AITile::GetComplementSlope(Slope slope)
+{
 	if (slope == SLOPE_INVALID) return SLOPE_INVALID;
 	if (IsSteepSlope(slope)) return SLOPE_INVALID;
 	if (IsHalftileSlope(slope)) return SLOPE_INVALID;
 	if ((slope & ~SLOPE_ELEVATED) != 0) return SLOPE_INVALID;
 	return (Slope)::ComplementSlope((::Slope)slope);
+}

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