Playing around with shaders for effects on the scene.

raycaster.hpp

@@ -44,7 +44,9 @@ struct Raycaster {
   std::vector<int> spriteOrder;
   std::vector<double> spriteDistance;
   std::vector<double> ZBuffer; // width
-  Animator $anim{256, 256, 10, 0};
+  Animator $anim;
+  sf::Shader $paused;
+  sf::Shader* $active_shader = nullptr;
 
   Raycaster(sf::RenderWindow& window, Matrix &map, int width, int height);
 
@@ -63,6 +65,8 @@ struct Raycaster {
   void position_camera(float player_x, float player_y);
 
   void set_position(int x, int y);
+  void init_shaders();
+
   inline size_t pixcoord(int x, int y) {
     if(!(x >=0 && x < $width)) {
       dbc::sentinel(fmt::format("pixcoord x={} but $width={}", x, $width));