migrat a SDL3

source/ball.cpp

@@ -12,7 +12,7 @@ Ball::Ball(int x, int y, int w, int h, int vx, int vy, Texture *texture)
     sprite = new Sprite(texture);
     sprite->setPos({x, y});
     sprite->setSize(w, h);
-    sprite->setClip({0, 0, w, h});
+    sprite->setClip({0, 0, static_cast<float>(w), static_cast<float>(h)});
     color = {(rand() % 192) + 32, (rand() % 192) + 32, (rand() % 192) + 32};
 }
 
@@ -45,9 +45,9 @@ void Ball::update()
         collision = true;
     }
 
-    if (x + w > SCREEN_WIDTH)
+    if (x + w > DEMO_WIDTH)
     {
-        x = SCREEN_WIDTH - w;
+        x = DEMO_WIDTH - w;
         vx = -luckyX;
         collision = true;
     }
@@ -59,9 +59,9 @@ void Ball::update()
         collision = true;
     }
 
-    if (y + h > SCREEN_HEIGHT)
+    if (y + h > DEMO_HEIGHT)
     {
-        y = SCREEN_HEIGHT - h;
+        y = DEMO_HEIGHT - h;
         vy = -luckyY;
         collision = true;
     }