Add infinite rectangles, make scene move when player gets near the screen's edge

main.cpp

@@ -89,8 +89,10 @@ void addStuff(SDLPP::Scene &scene, std::shared_ptr<SDLPP::Renderer> &r) {
     x->setId(PLAYER_ID);
     scene.addObject(x);
     player = x;
-    auto z = std::make_shared<SDLPP::RectangleRender>(0,2.5,100,100,r);
-    z->addCollision(SDLPP::Rect(0,0,1,1));
+    auto z = std::make_shared<SDLPP::RectangleRender>(0,2.5,0,0,r);
+    auto z_col = SDLPP::Rect(-1,0,-1,-1);
+    z_col.setInfinite();
+    z->addCollision(z_col);
     z->setId(DEATH);
     scene.addObject(z);
 }
@@ -203,6 +205,16 @@ void doInput(std::shared_ptr<SDLPP::Scene> scene) {
             }
         }
         player->setGravity(gravity);
+        auto playerX = player->getRect().x;
+        auto width = scene->getWidth();
+        auto rightBarrier = width * 0.7;
+        auto leftBarrier = width * 0.3;
+        auto rightmostX = scene->rightmost()->getRect().x + scene->rightmost()->getRect().w;
+        auto leftmostX = scene->leftmost()->getRect().x;
+        scene->moveEverything(
+            (playerX > rightBarrier && rightmostX > width) * (rightBarrier - playerX)/width, 0);
+        scene->moveEverything(
+            (playerX < leftBarrier && leftmostX < 0) * (leftBarrier - playerX)/width, 0);
     }
 }
 
@@ -229,7 +241,7 @@ int main() {
     SDL_setFramerate(&gFPS, 60);
     std::thread inputThread(doInput, main_scene);
     while( !quit ) {
-        SDL_framerateDelay(&gFPS);
+//        SDL_framerateDelay(&gFPS);
         main_scene->renderScene();
         main_scene->presentScene();
         frames++;