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33f98990df
SqMod/source/Base/AABB.hpp
Sandu Liviu Catalin 33f98990df Initial implementation of the AABB bounding box type.
2016-11-13 08:32:04 +02:00

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#ifndef _BASE_AABB_HPP_
#define _BASE_AABB_HPP_
// ------------------------------------------------------------------------------------------------
#include "Base/Vector3.hpp"
// ------------------------------------------------------------------------------------------------
namespace SqMod {
/* ------------------------------------------------------------------------------------------------
* Class used to represent an axis aligned bounding box in three-dimensional space.
*/
struct AABB
{
/* --------------------------------------------------------------------------------------------
* The type of value used by components of type.
*/
typedef float Value;
/* --------------------------------------------------------------------------------------------
* Helper instances for common values mostly used as return types or comparison.
*/
static const AABB NIL;
static const AABB MIN;
static const AABB MAX;
/* --------------------------------------------------------------------------------------------
* The delimiter character to be used when extracting values from strings.
*/
static SQChar Delim;
/* --------------------------------------------------------------------------------------------
* The minimum and maximum components of this type.
*/
Vector3 min, max;
/* --------------------------------------------------------------------------------------------
* Construct with zero size.
*/
AABB();
/* --------------------------------------------------------------------------------------------
* Construct a an equally sized and perfectly shaped box from scalar values.
*/
explicit AABB(Value mins, Value maxs);
/* --------------------------------------------------------------------------------------------
* Construct a an equally sized but imperfectly shaped box from individual components of a
* three-dimensional point.
*/
AABB(Value xv, Value yv, Value zv);
/* --------------------------------------------------------------------------------------------
* Construct a an unequally sized and imperfectly shaped box from individual components of two
* three-dimensional points.
*/
AABB(Value xmin, Value ymin, Value zmin, Value xmax, Value ymax, Value zmax);
/* --------------------------------------------------------------------------------------------
* Construct a an unequally sized and imperfectly shaped box from two three-dimensional
* vectors representing two three-dimensional points.
*/
AABB(const Vector3 & vmin, const Vector3 & vmax);
/* --------------------------------------------------------------------------------------------
* Copy constructor.
*/
AABB(const AABB & o) = default;
/* --------------------------------------------------------------------------------------------
* Move constructor.
*/
AABB(AABB && o) = default;
/* --------------------------------------------------------------------------------------------
* Destructor.
*/
~AABB() = default;
/* --------------------------------------------------------------------------------------------
* Copy assignment operator.
*/
AABB & operator = (const AABB & o) = default;
/* --------------------------------------------------------------------------------------------
* Move assignment operator.
*/
AABB & operator = (AABB && o) = default;
/* --------------------------------------------------------------------------------------------
* Three-dimensional vector assignment operator.
*/
AABB & operator = (const Vector3 & v);
/* --------------------------------------------------------------------------------------------
* Addition assignment operator.
*/
AABB & operator += (const AABB & b);
/* --------------------------------------------------------------------------------------------
* Subtraction assignment operator.
*/
AABB & operator -= (const AABB & b);
/* --------------------------------------------------------------------------------------------
* Multiplication assignment operator.
*/
AABB & operator *= (const AABB & b);
/* --------------------------------------------------------------------------------------------
* Division assignment operator.
*/
AABB & operator /= (const AABB & b);
/* --------------------------------------------------------------------------------------------
* Modulo assignment operator.
*/
AABB & operator %= (const AABB & b);
/* --------------------------------------------------------------------------------------------
* Scalar value addition assignment operator.
*/
AABB & operator += (Value s);
/* --------------------------------------------------------------------------------------------
* Scalar value subtraction assignment operator.
*/
AABB & operator -= (Value s);
/* --------------------------------------------------------------------------------------------
* Scalar value multiplication assignment operator.
*/
AABB & operator *= (Value s);
/* --------------------------------------------------------------------------------------------
* Scalar value division assignment operator.
*/
AABB & operator /= (Value s);
/* --------------------------------------------------------------------------------------------
* Scalar value modulo assignment operator.
*/
AABB & operator %= (Value s);
/* --------------------------------------------------------------------------------------------
* Pre-increment operator.
*/
AABB & operator ++ ();
/* --------------------------------------------------------------------------------------------
* Pre-decrement operator.
*/
AABB & operator -- ();
/* --------------------------------------------------------------------------------------------
* Post-increment operator.
*/
AABB operator ++ (int);
/* --------------------------------------------------------------------------------------------
* Post-decrement operator.
*/
AABB operator -- (int);
/* --------------------------------------------------------------------------------------------
* Addition operator.
*/
AABB operator + (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Subtraction operator.
*/
AABB operator - (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Multiplication operator.
*/
AABB operator * (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Division operator.
*/
AABB operator / (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Modulo operator.
*/
AABB operator % (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Scalar value addition operator.
*/
AABB operator + (Value s) const;
/* --------------------------------------------------------------------------------------------
* Scalar value subtraction operator.
*/
AABB operator - (Value s) const;
/* --------------------------------------------------------------------------------------------
* Scalar value multiplication operator.
*/
AABB operator * (Value s) const;
/* --------------------------------------------------------------------------------------------
* Scalar value division operator.
*/
AABB operator / (Value s) const;
/* --------------------------------------------------------------------------------------------
* Scalar value modulo operator.
*/
AABB operator % (Value s) const;
/* --------------------------------------------------------------------------------------------
* Unary plus operator.
*/
AABB operator + () const;
/* --------------------------------------------------------------------------------------------
* Unary minus operator.
*/
AABB operator - () const;
/* --------------------------------------------------------------------------------------------
* Equality comparison operator.
*/
bool operator == (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Inequality comparison operator.
*/
bool operator != (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Less than comparison operator.
*/
bool operator < (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Greater than comparison operator.
*/
bool operator > (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Less than or equal comparison operator.
*/
bool operator <= (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Greater than or equal comparison operator.
*/
bool operator >= (const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare two instances of this type.
*/
Int32 Cmp(const AABB & b) const;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare an instance of this type with a scalar value.
*/
Int32 Cmp(SQFloat s) const
{
return Cmp(AABB(s, s, s, s, s, s));
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare an instance of this type with a scalar value.
*/
Int32 Cmp(SQInteger s) const
{
const Value v = static_cast< Value >(s);
return Cmp(AABB(v, v, v, v, v, v));
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare an instance of this type with a scalar value.
*/
Int32 Cmp(bool s) const
{
const Value v = static_cast< Value >(s);
return Cmp(AABB(v, v, v, v, v, v));
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to compare an instance of this type with a scalar value.
*/
Int32 Cmp(std::nullptr_t) const
{
const Value v = static_cast< Value >(0);
return Cmp(AABB(v, v, v, v, v, v));
}
/* --------------------------------------------------------------------------------------------
* Used by the script engine to convert an instance of this type to a string.
*/
CSStr ToString() const;
/* --------------------------------------------------------------------------------------------
* Used by the script engine to retrieve the name from instances of this type.
*/
static SQInteger Typename(HSQUIRRELVM vm);
/* --------------------------------------------------------------------------------------------
* Set the values extracted from the specified string using the specified delimiter.
*/
void SetStr(CSStr values, SQChar delim);
/* --------------------------------------------------------------------------------------------
* Clear the component values to default.
*/
void Clear();
/* --------------------------------------------------------------------------------------------
* Define from minimum and maximum floats (all dimensions same).
*/
void DefineScalar(Value mins, Value maxs);
/* --------------------------------------------------------------------------------------------
* Define from a point.
*/
void DefineVector3(const Vector3 & point);
/* --------------------------------------------------------------------------------------------
* Define from a point.
*/
void DefineVector3Ex(Value x, Value y, Value z);
/* --------------------------------------------------------------------------------------------
* Define from minimum and maximum vectors.
*/
void DefineAllVector3(const Vector3 & nmin, const Vector3 & nmax);
/* --------------------------------------------------------------------------------------------
* Define from minimum and maximum vectors.
*/
void DefineAllVector3Ex(Value xmin, Value ymin, Value zmin, Value xmax, Value ymax, Value zmax);
/* --------------------------------------------------------------------------------------------
* Define from another bounding box.
*/
void DefineAABB(const AABB & box);
/* --------------------------------------------------------------------------------------------
* Define from a sphere.
*/
void DefineSphere(const Sphere & sphere);
/* --------------------------------------------------------------------------------------------
* Define from a sphere.
*/
void DefineSphereEx(Value x, Value y, Value z, Value r);
/* --------------------------------------------------------------------------------------------
* Merge a point into this bounding box.
*/
void MergeVector3(const Vector3 & point);
/* --------------------------------------------------------------------------------------------
* Merge a point into this bounding box.
*/
void MergeVector3Ex(Value x, Value y, Value z);
/* --------------------------------------------------------------------------------------------
* Merge another bounding box into this bounding box.
*/
void MergeAABB(const AABB & box);
/* --------------------------------------------------------------------------------------------
* Merge another bounding box into this bounding box.
*/
void MergeAABBEx(Value xmin, Value ymin, Value zmin, Value xmax, Value ymax, Value zmax);
/* --------------------------------------------------------------------------------------------
* Merge a sphere into this bounding box.
*/
void MergeSphere(const Sphere & sphere);
/* --------------------------------------------------------------------------------------------
* Merge a sphere into this bounding box.
*/
void MergeSphereEx(Value x, Value y, Value z, Value r);
/* --------------------------------------------------------------------------------------------
* Check if the box is empty. This means that there is no space between the min and max edge.
*/
bool Empty() const;
/* --------------------------------------------------------------------------------------------
* Return true if this bounding box is defined via a previous call to Define() or Merge().
*/
bool Defined() const;
/* --------------------------------------------------------------------------------------------
* Return center.
*/
Vector3 Center() const;
/* --------------------------------------------------------------------------------------------
* Get size/extent of the box (maximal distance of two points in the box).
*/
Vector3 Size() const;
/* --------------------------------------------------------------------------------------------
* Return half-size.
*/
Vector3 HalfSize() const;
/* --------------------------------------------------------------------------------------------
* Get radius of the bounding sphere.
*/
Value Radius() const;
/* --------------------------------------------------------------------------------------------
* Get the volume enclosed by the box in cubed units.
*/
Value Volume() const;
/* --------------------------------------------------------------------------------------------
* Get the surface area of the box in squared units.
*/
Value Area() const;
/* --------------------------------------------------------------------------------------------
* Test if a point is inside.
*/
Int32 IsVector3Inside(const Vector3 & point) const;
/* --------------------------------------------------------------------------------------------
* Test if a point is inside.
*/
Int32 IsVector3InsideEx(Value x, Value y, Value z) const;
/* --------------------------------------------------------------------------------------------
* Test if another bounding box is inside, outside or intersects.
*/
Int32 IsAABBInside(const AABB & box) const;
/* --------------------------------------------------------------------------------------------
* Test if another bounding box is inside, outside or intersects.
*/
Int32 IsAABBInsideEx(Value xmin, Value ymin, Value zmin, Value xmax, Value ymax, Value zmax) const;
/* --------------------------------------------------------------------------------------------
* Test if another bounding box is (partially) inside or outside.
*/
Int32 IsAABBInsideFast(const AABB & box) const;
/* --------------------------------------------------------------------------------------------
* Test if another bounding box is (partially) inside or outside.
*/
Int32 IsAABBInsideFastEx(Value xmin, Value ymin, Value zmin, Value xmax, Value ymax, Value zmax) const;
/* --------------------------------------------------------------------------------------------
* Test if a sphere is inside, outside or intersects.
*/
Int32 IsSphereInside(const Sphere & sphere) const;
/* --------------------------------------------------------------------------------------------
* Test if a sphere is inside, outside or intersects.
*/
Int32 IsSphereInsideEx(Value x, Value y, Value z, Value r) const;
/* --------------------------------------------------------------------------------------------
* Test if a sphere is (partially) inside or outside.
*/
Int32 IsSphereInsideFast(const Sphere & sphere) const;
/* --------------------------------------------------------------------------------------------
* Test if a sphere is (partially) inside or outside.
*/
Int32 IsSphereInsideFastEx(Value x, Value y, Value z, Value r) const;
/* --------------------------------------------------------------------------------------------
* Extract the values for components of the AABB type from a string.
*/
static const AABB & Get(CSStr str);
/* --------------------------------------------------------------------------------------------
* Extract the values for components of the AABB type from a string.
*/
static const AABB & Get(CSStr str, SQChar delim);
};
} // Namespace:: SqMod
#endif // _BASE_AABB_HPP_
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