basic gameplay for cooperative

src/graphics/renderers/GameRenderer.h

@@ -3,6 +3,7 @@
 #include <vector>
 #include <string>
 #include "../../gameplay/core/Game.h"
+#include "../../gameplay/coop/CoopGame.h"
 
 // Forward declarations
 class FontAtlas;
@@ -61,6 +62,23 @@ public:
         int selectedButton
     );
 
+    static void renderCoopPlayingState(
+        SDL_Renderer* renderer,
+        CoopGame* game,
+        FontAtlas* pixelFont,
+        LineEffect* lineEffect,
+        SDL_Texture* blocksTex,
+        SDL_Texture* statisticsPanelTex,
+        SDL_Texture* scorePanelTex,
+        SDL_Texture* nextPanelTex,
+        SDL_Texture* holdPanelTex,
+        float logicalW,
+        float logicalH,
+        float logicalScale,
+        float winW,
+        float winH
+    );
+
     // Public wrapper that forwards to the private tile-drawing helper. Use this if
     // calling from non-member helper functions (e.g. visual effects) that cannot
     // access private class members.