flewkey/cuberite-2a
1
0
Fork 0
Code Releases Activity

Hardened cCuboid with asserts for its assumptions.

Browse Source
This commit is contained in:
madmaxoft 2014-03-09 22:02:08 +01:00
parent 81bf846e64
commit dacb6cef1d
2 changed files with 11 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/Cuboid.cpp
View File

@ -72,6 +72,9 @@ int cCuboid::GetVolume(void) const
bool cCuboid::DoesIntersect(const cCuboid & a_Other) const
{
ASSERT(IsSorted());
ASSERT(a_Other.IsSorted());
// In order for cuboids to intersect, each of their coord intervals need to intersect
return (
DoIntervalsIntersect(p1.x, p2.x, a_Other.p1.x, a_Other.p2.x) &&
@ -86,6 +89,9 @@ bool cCuboid::DoesIntersect(const cCuboid & a_Other) const
bool cCuboid::IsCompletelyInside(const cCuboid & a_Outer) const
{
ASSERT(IsSorted());
ASSERT(a_Outer.IsSorted());
return (
(p1.x >= a_Outer.p1.x) &&
(p2.x <= a_Outer.p2.x) &&

8
src/Cuboid.h
View File

@ -34,7 +34,8 @@ public:
Works on unsorted cuboids, too. */
int GetVolume(void) const;
/** Returns true if the cuboids have at least one voxel in common. Both coords are considered inclusive. */
/** Returns true if the cuboids have at least one voxel in common. Both coords are considered inclusive.
Assumes both cuboids are sorted. */
bool DoesIntersect(const cCuboid & a_Other) const;
bool IsInside(const Vector3i & v) const
@ -64,7 +65,8 @@ public:
);
}
/** Returns true if this cuboid is completely inside the specifie cuboid (in all 6 coords) */
/** Returns true if this cuboid is completely inside the specifie cuboid (in all 6 coords).
Assumes both cuboids are sorted. */
bool IsCompletelyInside(const cCuboid & a_Outer) const;
/** Moves the cuboid by the specified offsets in each direction */
@ -72,7 +74,7 @@ public:
/** Expands the cuboid by the specified amount in each direction.
Works on unsorted cuboids as well.
Note that this function doesn't check for underflows. */
Note that this function doesn't check for underflows when using negative amounts. */
void Expand(int a_SubMinX, int a_AddMaxX, int a_SubMinY, int a_AddMaxY, int a_SubMinZ, int a_AddMaxZ);
/** Clamps both X coords to the specified range. Works on unsorted cuboids, too. */