Can now apply a shader using the animation's timer but not sure if there should be shaders on animations or outside or both.

animate2.hpp

@@ -3,6 +3,7 @@
 #include <chrono>
 #include <SFML/Graphics/Rect.hpp>
 #include <SFML/Graphics/Sprite.hpp>
+#include <SFML/Graphics/Shader.hpp>
 #include <SFML/System/Clock.hpp>
 #include <SFML/System/Time.hpp>
 #include <functional>
@@ -116,6 +117,7 @@ namespace animate2 {
       bool has_form(const std::string& as_form);
       void set_form(const std::string& form);
       void apply(sf::Sprite& sprite);
+      void apply_effect(std::shared_ptr<sf::Shader> effect);
       void update_frame();
       void update();
       void motion(sf::Sprite& sprite, sf::Vector2f pos, sf::Vector2f scale);