1 files changed, 17 insertions, 0 deletions

diff --git a/src/math/math.cpp b/src/math/math.cpp
index eeb9d3fa..0cfc2ce9 100644
--- a/src/math/math.cpp
+++ b/src/math/math.cpp
@@ -60,6 +60,12 @@ CMatrix::RotateX(float x)
 }
 
 void
+CMatrix::RotateY(float y)
+{
+	Rotate(0.0f, y, 0.0f);
+}
+
+void
 CMatrix::RotateZ(float z)
 {
 	Rotate(0.0f, 0.0f, z);
@@ -178,6 +184,17 @@ CQuaternion::Slerp(const CQuaternion &q1, const CQuaternion &q2, float theta, fl
 }
 
 void
+CQuaternion::Set(RwV3d *axis, float angle)
+{
+	float halfCos = Cos(angle*0.5f);
+	float halfSin = Sin(angle*0.5f);
+	x = axis->x*halfSin;
+	y = axis->y*halfSin;
+	z = axis->z*halfSin;
+	w = halfCos;
+}
+
+void
 CQuaternion::Get(RwMatrix *matrix)
 {
 	float x2 = x+x;