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Add methods to the Vector3 type to calculate the angle and check if between two points.

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This commit is contained in:
Sandu Liviu Catalin 2016-08-04 03:38:54 +03:00
parent cb819d417b
commit 26c0bc4872
2 changed files with 25 additions and 1 deletions
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15
source/Base/Vector3.cpp
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@ -545,6 +545,12 @@ Vector3 Vector3::CrossProduct(const Vector3 & vec) const
return Vector3((y * vec.z) - (z * vec.y), (z * vec.x) - (x * vec.z), (x * vec.y) - (y * vec.x)); return Vector3((y * vec.z) - (z * vec.y), (z * vec.x) - (x * vec.z), (x * vec.y) - (y * vec.x));
} }
// ------------------------------------------------------------------------------------------------
Vector3::Value Vector3::Angle(const Vector3 & vec) const
{
return std::acos(DotProduct(vec) / (GetLength() * vec.GetLength()));
}
// ------------------------------------------------------------------------------------------------ // ------------------------------------------------------------------------------------------------
Vector3::Value Vector3::GetDistanceTo(const Vector3 & vec) const Vector3::Value Vector3::GetDistanceTo(const Vector3 & vec) const
{ {
@ -557,6 +563,13 @@ Vector3::Value Vector3::GetSquaredDistanceTo(const Vector3 & vec) const
return (std::pow(vec.x - x, 2) + std::pow(vec.y - y, 2) + std::pow(vec.z - z, 2)); return (std::pow(vec.x - x, 2) + std::pow(vec.y - y, 2) + std::pow(vec.z - z, 2));
} }
// ------------------------------------------------------------------------------------------------
bool Vector3::IsBetweenPoints(const Vector3 & begin, const Vector3 & end) const
{
const Value length = (end - begin).GetLengthSquared();
return EpsLtEq(GetSquaredDistanceTo(begin), length) && EpsLtEq(GetSquaredDistanceTo(end), length);
}
// ------------------------------------------------------------------------------------------------ // ------------------------------------------------------------------------------------------------
const Vector3 & Vector3::Get(CSStr str) const Vector3 & Vector3::Get(CSStr str)
{ {
@ -676,8 +689,10 @@ void Register_Vector3(HSQUIRRELVM vm)
.Func(_SC("Dot"), &Vector3::DotProduct) .Func(_SC("Dot"), &Vector3::DotProduct)
.Func(_SC("AbsDot"), &Vector3::AbsDotProduct) .Func(_SC("AbsDot"), &Vector3::AbsDotProduct)
.Func(_SC("Cross"), &Vector3::CrossProduct) .Func(_SC("Cross"), &Vector3::CrossProduct)
.Func(_SC("Angle"), &Vector3::Angle)
.Func(_SC("DistanceTo"), &Vector3::GetDistanceTo) .Func(_SC("DistanceTo"), &Vector3::GetDistanceTo)
.Func(_SC("SqDistanceTo"), &Vector3::GetSquaredDistanceTo) .Func(_SC("SqDistanceTo"), &Vector3::GetSquaredDistanceTo)
.Func(_SC("IsBetweenPoints"), &Vector3::IsBetweenPoints)
// Member Overloads // Member Overloads
.Overload< void (Vector3::*)(void) >(_SC("Generate"), &Vector3::Generate) .Overload< void (Vector3::*)(void) >(_SC("Generate"), &Vector3::Generate)
.Overload< void (Vector3::*)(Val, Val) >(_SC("Generate"), &Vector3::Generate) .Overload< void (Vector3::*)(Val, Val) >(_SC("Generate"), &Vector3::Generate)

11
source/Base/Vector3.hpp
View File

@ -389,17 +389,26 @@ struct Vector3
*/ */
Vector3 CrossProduct(const Vector3 & vec) const; Vector3 CrossProduct(const Vector3 & vec) const;
/* --------------------------------------------------------------------------------------------
* Returns the angle between this vector and another vector in degrees.
*/
Value Angle(const Vector3 & vec) const;
/* -------------------------------------------------------------------------------------------- /* --------------------------------------------------------------------------------------------
* Return the distance between this vector and another vector. * Return the distance between this vector and another vector.
*/ */
Value GetDistanceTo(const Vector3 & vec) const; Value GetDistanceTo(const Vector3 & vec) const;
/* -------------------------------------------------------------------------------------------- /* --------------------------------------------------------------------------------------------
* Return the squared distance between this vector and another vector. * Return the squared distance between this vector and another vector.
*/ */
Value GetSquaredDistanceTo(const Vector3 & vec) const; Value GetSquaredDistanceTo(const Vector3 & vec) const;
/* --------------------------------------------------------------------------------------------
* Linear interpolation with another vector.
*/
bool IsBetweenPoints(const Vector3 & begin, const Vector3 & end) const;
/* -------------------------------------------------------------------------------------------- /* --------------------------------------------------------------------------------------------
* Extract the values for components of the Vector3 type from a string. * Extract the values for components of the Vector3 type from a string.
*/ */