Is there a way to append an array of objects in processing?-CodePudding

According to Processing's documentation, you can append an array of objects the same way, as you append any other array. I'm doing exactly that, but I get an error:

cannot convert from Object to sketch_220416a.planet[]

Here is a minimal, reproducible example:

planet[] PLANETS = new planet[1];

void setup() {
   PLANETS[0] = new planet(100, 10, 10);
   planet tb = new planet(200,3,1);
   PLANETS = append(PLANETS, tb);
   size(800, 800);
}
class planet{
   planet(float r, float x, float y)
   {
   }
   /*Some code*/
}

CodePudding user response：

From the docs page you linked in your question:

When using an array of objects, the data returned from the function must be cast to the object array's data type. For example: SomeClass[] items = (SomeClass[]) append(originalArray, element).

In your example that would look like this:

PLANETS = (planet[]) append(PLANETS, tb);

The (planet[]) part is just telling Processing to cast the element returned from append as an array of planet objects.