diff options
Diffstat (limited to 'core/math')
| -rw-r--r-- | core/math/quaternion.cpp | 5 | ||||
| -rw-r--r-- | core/math/quaternion.h | 7 |
2 files changed, 9 insertions, 3 deletions
diff --git a/core/math/quaternion.cpp b/core/math/quaternion.cpp index 7037db7112..3f1d2c58e5 100644 --- a/core/math/quaternion.cpp +++ b/core/math/quaternion.cpp @@ -33,6 +33,11 @@ #include "core/math/basis.h" #include "core/string/print_string.h" +real_t Quaternion::angle_to(const Quaternion &p_to) const { + real_t d = dot(p_to); + return Math::acos(CLAMP(d * d * 2 - 1, -1, 1)); +} + // get_euler_xyz returns a vector containing the Euler angles in the format // (ax,ay,az), where ax is the angle of rotation around x axis, // and similar for other axes. diff --git a/core/math/quaternion.h b/core/math/quaternion.h index 796214b79e..35324323b3 100644 --- a/core/math/quaternion.h +++ b/core/math/quaternion.h @@ -28,8 +28,8 @@ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /*************************************************************************/ -#ifndef QUAT_H -#define QUAT_H +#ifndef QUATERNION_H +#define QUATERNION_H #include "core/math/math_defs.h" #include "core/math/math_funcs.h" @@ -62,6 +62,7 @@ public: bool is_normalized() const; Quaternion inverse() const; _FORCE_INLINE_ real_t dot(const Quaternion &p_q) const; + real_t angle_to(const Quaternion &p_to) const; Vector3 get_euler_xyz() const; Vector3 get_euler_yxz() const; @@ -235,4 +236,4 @@ _FORCE_INLINE_ Quaternion operator*(const real_t &p_real, const Quaternion &p_qu return p_quaternion * p_real; } -#endif // QUAT_H +#endif // QUATERNION_H |