setCollisions method
Implementation
void setCollisions(List<Rect> rect){
for(int i = 0; i < rect.length; i++){
Size size = Size(rect[i].width,rect[i].height);
Vector3 pos = Converter.toVector3(camera.position, Offset(rect[i].left,rect[i].top));
collisions.add(
Object(
position: pos,
size: size
)
);
}
}