4 files changed, 24 insertions, 0 deletions
diff --git a/core/math/a_star.cpp b/core/math/a_star.cpp
index 838fec22f0..04e4383f03 100644
--- a/core/math/a_star.cpp
+++ b/core/math/a_star.cpp
@@ -123,6 +123,12 @@ void AStar::disconnect_points(int p_id, int p_with_id) {
 	a->neighbours.erase(b);
 	b->neighbours.erase(a);
 }
+
+bool AStar::has_point(int p_id) const {
+
+	return points.has(p_id);
+}
+
 bool AStar::are_points_connected(int p_id, int p_with_id) const {
 
 	Segment s(p_id, p_with_id);
@@ -400,6 +406,7 @@ void AStar::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("get_point_pos", "id"), &AStar::get_point_pos);
 	ClassDB::bind_method(D_METHOD("get_point_weight_scale", "id"), &AStar::get_point_weight_scale);
 	ClassDB::bind_method(D_METHOD("remove_point", "id"), &AStar::remove_point);
+	ClassDB::bind_method(D_METHOD("has_point", "id"), &AStar::has_point);
 
 	ClassDB::bind_method(D_METHOD("connect_points", "id", "to_id", "bidirectional"), &AStar::connect_points, DEFVAL(true));
 	ClassDB::bind_method(D_METHOD("disconnect_points", "id", "to_id"), &AStar::disconnect_points);
diff --git a/core/math/a_star.h b/core/math/a_star.h
index 34a5358344..ebf1407c17 100644
--- a/core/math/a_star.h
+++ b/core/math/a_star.h
@@ -104,6 +104,7 @@ public:
 	Vector3 get_point_pos(int p_id) const;
 	real_t get_point_weight_scale(int p_id) const;
 	void remove_point(int p_id);
+	bool has_point(int p_id) const;
 
 	void connect_points(int p_id, int p_with_id, bool bidirectional = true);
 	void disconnect_points(int p_id, int p_with_id);
diff --git a/core/math/audio_frame.h b/core/math/audio_frame.h
index 5ccc9d9e5e..d54f622197 100644
--- a/core/math/audio_frame.h
+++ b/core/math/audio_frame.h
@@ -102,6 +102,16 @@ struct AudioFrame {
 		r = ::undenormalise(r);
 	}
 
+	_FORCE_INLINE_ AudioFrame linear_interpolate(const AudioFrame &p_b, float p_t) const {
+
+		AudioFrame res = *this;
+
+		res.l += (p_t * (p_b.l - l));
+		res.r += (p_t * (p_b.r - r));
+
+		return res;
+	}
+
 	_ALWAYS_INLINE_ AudioFrame(float p_l, float p_r) {
 		l = p_l;
 		r = p_r;
diff --git a/core/math/vector3.h b/core/math/vector3.h
index 7dfcedd0da..6a7974681e 100644
--- a/core/math/vector3.h
+++ b/core/math/vector3.h
@@ -100,6 +100,7 @@ struct Vector3 {
 
 	_FORCE_INLINE_ Vector3 abs() const;
 	_FORCE_INLINE_ Vector3 floor() const;
+	_FORCE_INLINE_ Vector3 sign() const;
 	_FORCE_INLINE_ Vector3 ceil() const;
 
 	_FORCE_INLINE_ real_t distance_to(const Vector3 &p_b) const;
@@ -187,6 +188,11 @@ Vector3 Vector3::abs() const {
 	return Vector3(Math::abs(x), Math::abs(y), Math::abs(z));
 }
 
+Vector3 Vector3::sign() const {
+
+	return Vector3(SGN(x), SGN(y), SGN(z));
+}
+
 Vector3 Vector3::floor() const {
 
 	return Vector3(Math::floor(x), Math::floor(y), Math::floor(z));