preliminary physics, sound, hud

[chaz/yoink] / src / Moof / Math.hh

diff --git a/src/Moof/Math.hh b/src/Moof/Math.hh
index 4e1cda8c1a25f3a4f57cffe616a56564040f45f6..a38af8b049dd77357c175aa79ecb2c5d5969c810 100644 (file)
--- a/src/Moof/Math.hh
+++ b/src/Moof/Math.hh
@@ -68,12 +68,27 @@ inline Vector3& demoteVector(Vector3& left, const Vector4& right)
        return left;
 }
 
-inline Vector4& promoteVector(Vector4& left, const Vector3& right)
+inline Vector2& demoteVector(Vector2& left, const Vector3& right)
+{
+       left[0] = right[0];
+       left[1] = right[1];
+       return left;
+}
+
+inline Vector4& promoteVector(Vector4& left, const Vector3& right, Scalar extra = 1.0)
 {
        left[0] = right[0];
        left[1] = right[1];
        left[2] = right[2];
-       left[3] = 1.0;
+       left[3] = extra;
+       return left;
+}
+
+inline Vector3& promoteVector(Vector3& left, const Vector2& right, Scalar extra = 1.0)
+{
+       left[0] = right[0];
+       left[1] = right[1];
+       left[3] = extra;
        return left;
 }
 
@@ -85,7 +100,7 @@ const Scalar EPSILON = 0.000001;
  * Check the equality of scalars with a certain degree of error allowed.
  */
 
-inline bool checkEquality(Scalar a, Scalar b, Scalar epsilon = EPSILON)
+inline bool isEqual(Scalar a, Scalar b, Scalar epsilon = EPSILON)
 {
        return std::abs(a - b) < epsilon;
 }