Question

I use this method to add a Sprite to the screen randomly.

 private void addFace() {
     Random rand = new Random();

        float x = (int) mCamera.getHeight() + mBallTextureRegion.getHeight();
        float minY = mBallTextureRegion.getHeight();
        float maxY = (int)(mCamera.getWidth() - mBallTextureRegion.getWidth());
        float rangeY = maxY - minY;
        float y = rand.nextInt((int)rangeY) + minY;

     this.mFaceCount++;
     Log.e("Faces: ", "Face" + this.mFaceCount);

    Sprite face = null;
     Body body = null;

The only problem is i would like for the sprites to be added at the top of the screen(which is the camera) but instead they are added on the side of the screen.

Any suggestions on how to do this?

Answer 1

First of all, the (x,y) coordinates of an entity are on it’s top left. So, minY should be 0, or you could just do:

float y = rand.nextFloat(maxY);

You don’t need all of these (int) casts, you can delete them.

In order to make to position random, get a random X too:

float maxX = this.mCamera.getWidth() - this.mBallTextureRegion.getWidth();
float x = rand.nextFloat(maxX);

This should work.