and again

include/td/render/Renderer.h

@@ -10,7 +10,8 @@ namespace render {
 
 class BasicRenderer {
   public:
-	virtual void Render() = 0;
+	virtual void Render(float a_Lerp) = 0;
+	virtual ~BasicRenderer() {}
 
 	void Render(const GL::VertexArray& a_Vao);
 };
@@ -24,6 +25,11 @@ class Renderer : public BasicRenderer {
   public:
 	Renderer(Camera& a_Camera);
 	virtual ~Renderer() {}
+
+	template <typename T>
+	float Lerp(const T& a_Mob, float a_LerpFactor, const std::function<float(const T&)>& a_MemberGetter) {
+		return static_cast<float>(maths::Lerp(a_MemberGetter(a_Mob), a_MemberGetter(*a_Mob.m_Next), a_LerpFactor));
+	}
 };
 
 class RenderPipeline {
@@ -32,7 +38,7 @@ class RenderPipeline {
 
   public:
 	RenderPipeline();
-	~RenderPipeline() = default;
+	virtual ~RenderPipeline() {}
 
 	template <typename T, typename... Args>
 	void AddRenderer(Args&&... args) {
@@ -43,9 +49,9 @@ class RenderPipeline {
 		m_Renderers.clear();
 	}
 
-	void Render() {
+	void Render(float a_Lerp) {
 		for (auto& renderer : m_Renderers) {
-			renderer->Render();
+			renderer->Render(a_Lerp);
 		}
 	}
 };