(mkosarek) Working undamped spring motion

1 files changed, 11 insertions, 0 deletions

diff --git a/shared_cpp/mathlib.cpp b/shared_cpp/mathlib.cpp
index 3402f0e..5996ba3 100644
--- a/shared_cpp/mathlib.cpp
+++ b/shared_cpp/mathlib.cpp
@@ -12,6 +12,13 @@
 
 // ***************************************
 // Vector2
+Vector2::Vector2() { }
+
+Vector2::Vector2(float inX, float inY) {
+    x = inX;
+    y = inY;
+}
+
 Vector2 getRandomNormalVector2() {
     Vector2 retval = {
 		static_cast<float>(rand()) / static_cast<float>(RAND_MAX),
@@ -291,6 +298,10 @@ Vector4 Vector4::cross(const Vector4& other) {
 	};
 }
 
+Vector4 lerp(Vector4 start, Vector4 end, float t) {
+    return (end - start) * t + start;
+}
+
 Vector4 Vector4::operator+(const Vector4& v2) {
     return add(v2);
 }