/// <summary>
/// Query the world for all fixtures that potentially overlap the provided AABB.
/// </summary>
/// <param name="callback">a user implemented callback class.</param>
/// <param name="aabb">the query box.</param>
public virtual void queryAABB(QueryCallback callback, AABB aabb)
{
wqwrapper.broadPhase = m_contactManager.m_broadPhase;
wqwrapper.callback = callback;
m_contactManager.m_broadPhase.query(wqwrapper, aabb);
}
/// <summary>
/// Copies from the given object
/// </summary>
/// <param name="copy">the object to copy from</param>
public AABB(AABB copy)
: this(copy.lowerBound, copy.upperBound)
{
}
/// <summary>
/// Query the world for all fixtures that potentially overlap the provided AABB.
/// </summary>
/// <param name="callback">a user implemented callback class.</param>
/// <param name="aabb">the query box.</param>
public void QueryAABB(IQueryCallback callback, AABB aabb)
{
wqwrapper.BroadPhase = ContactManager.BroadPhase;
wqwrapper.Callback = callback;
ContactManager.BroadPhase.Query(wqwrapper, aabb);
}
/// <summary>
/// Does this aabb contain the provided AABB.
/// </summary>
/// <returns></returns>
public bool contains(AABB aabb)
{
/*
* boolean result = true; result = result && lowerBound.x <= aabb.lowerBound.x; result = result
* && lowerBound.y <= aabb.lowerBound.y; result = result && aabb.upperBound.x <= upperBound.x;
* result = result && aabb.upperBound.y <= upperBound.y; return result;
*/
// djm: faster putting all of them together, as if one is false we leave the logic
// early
return lowerBound.x > aabb.lowerBound.x && lowerBound.y > aabb.lowerBound.y && aabb.upperBound.x > upperBound.x && aabb.upperBound.y > upperBound.y;
}
/// <summary>
/// Sets this object from the given object
/// </summary>
/// <param name="aabb">the object to copy from</param>
public void set_Renamed(AABB aabb)
{
Vec2 v = aabb.lowerBound;
lowerBound.x = v.x;
lowerBound.y = v.y;
Vec2 v1 = aabb.upperBound;
upperBound.x = v1.x;
upperBound.y = v1.y;
}
/// <summary>
/// Combine two AABBs into this one.
/// </summary>
/// <param name="aabb1"></param>
/// <param name="aab"></param>
public void combine(AABB aabb1, AABB aab)
{
lowerBound.x = aabb1.lowerBound.x < aab.lowerBound.x ? aabb1.lowerBound.x : aab.lowerBound.x;
lowerBound.y = aabb1.lowerBound.y < aab.lowerBound.y ? aabb1.lowerBound.y : aab.lowerBound.y;
upperBound.x = aabb1.upperBound.x > aab.upperBound.x ? aabb1.upperBound.x : aab.upperBound.x;
upperBound.y = aabb1.upperBound.y > aab.upperBound.y ? aabb1.upperBound.y : aab.upperBound.y;
}
/// <summary>
/// Combines another aabb with this one
/// </summary>
/// <param name="aabb"></param>
public void combine(AABB aabb)
{
lowerBound.x = lowerBound.x < aabb.lowerBound.x ? lowerBound.x : aabb.lowerBound.x;
lowerBound.y = lowerBound.y < aabb.lowerBound.y ? lowerBound.y : aabb.lowerBound.y;
upperBound.x = upperBound.x > aabb.upperBound.x ? upperBound.x : aabb.upperBound.x;
upperBound.y = upperBound.y > aabb.upperBound.y ? upperBound.y : aabb.upperBound.y;
}
/// <summary>
/// Copies from the given object
/// </summary>
/// <param name="copy">the object to copy from</param>
public AABB(AABB copy)
: this(copy.LowerBound, copy.UpperBound)
{
}
public static bool testOverlap(AABB a, AABB b)
{
if (b.lowerBound.x - a.upperBound.x > 0.0f || b.lowerBound.y - a.upperBound.y > 0.0f)
{
return false;
}
if (a.lowerBound.x - b.upperBound.x > 0.0f || a.lowerBound.y - b.upperBound.y > 0.0f)
{
return false;
}
return true;
}
/// <summary>
/// Sets this object from the given object
/// </summary>
/// <param name="aabb">the object to copy from</param>
public void Set(AABB aabb)
{
Vec2 v = aabb.LowerBound;
LowerBound.X = v.X;
LowerBound.Y = v.Y;
Vec2 v1 = aabb.UpperBound;
UpperBound.X = v1.X;
UpperBound.Y = v1.Y;
}
/// <summary>
/// Does this aabb contain the provided AABB.
/// </summary>
/// <returns></returns>
public bool Contains(AABB aabb)
{
/*
* boolean result = true; result = result && lowerBound.x <= aabb.lowerBound.x; result = result
* && lowerBound.y <= aabb.lowerBound.y; result = result && aabb.upperBound.x <= upperBound.x;
* result = result && aabb.upperBound.y <= upperBound.y; return result;
*/
// djm: faster putting all of them together, as if one is false we leave the logic
// early
return LowerBound.X > aabb.LowerBound.X && LowerBound.Y > aabb.LowerBound.Y && aabb.UpperBound.X > UpperBound.X && aabb.UpperBound.Y > UpperBound.Y;
}
/// <summary>
/// Combines another aabb with this one
/// </summary>
/// <param name="aabb"></param>
public void Combine(AABB aabb)
{
LowerBound.X = LowerBound.X < aabb.LowerBound.X ? LowerBound.X : aabb.LowerBound.X;
LowerBound.Y = LowerBound.Y < aabb.LowerBound.Y ? LowerBound.Y : aabb.LowerBound.Y;
UpperBound.X = UpperBound.X > aabb.UpperBound.X ? UpperBound.X : aabb.UpperBound.X;
UpperBound.Y = UpperBound.Y > aabb.UpperBound.Y ? UpperBound.Y : aabb.UpperBound.Y;
}
/// <summary>
/// Combine two AABBs into this one.
/// </summary>
/// <param name="aabb1"></param>
/// <param name="aab"></param>
public void Combine(AABB aabb1, AABB aab)
{
LowerBound.X = aabb1.LowerBound.X < aab.LowerBound.X ? aabb1.LowerBound.X : aab.LowerBound.X;
LowerBound.Y = aabb1.LowerBound.Y < aab.LowerBound.Y ? aabb1.LowerBound.Y : aab.LowerBound.Y;
UpperBound.X = aabb1.UpperBound.X > aab.UpperBound.X ? aabb1.UpperBound.X : aab.UpperBound.X;
UpperBound.Y = aabb1.UpperBound.Y > aab.UpperBound.Y ? aabb1.UpperBound.Y : aab.UpperBound.Y;
}
public static bool TestOverlap(AABB a, AABB b)
{
if (b.LowerBound.X - a.UpperBound.X > 0.0f || b.LowerBound.Y - a.UpperBound.Y > 0.0f)
{
return false;
}
if (a.LowerBound.X - b.UpperBound.X > 0.0f || a.LowerBound.Y - b.UpperBound.Y > 0.0f)
{
return false;
}
return true;
}
