Spawning Enemies From ArrayList

Question

I have twelve enemies in an ArrayList and I want to delay the batch.draw for each enemy. I tried the following code in the render method but it just makes the sprites flicker. I am using libgdx. Please help ;(

for (int i = 0; i < list.size(); i++)
{
    fireDelay -= Gdx.graphics.getDeltaTime();
    if (fireDelay <= 0)
    {
        batch.draw(list.get(i)//..etc)                    
        fireDelay += 0.2;
    }
}

Answer 1

The following code will definitely work:

boolean spawnTime=0;

void spawnEnemy(){
  Rectangle rect = new Rectangle();
  rect.x = Gdx.graphics.getWidth()/2;
  rect.y = Gdx.graphics.getHeight();
  rect.setSize(50,50);
  myList.add(rect);
}

spawnTime+=Gdx.graphics.getDeltaTime();

//call spawnEnemy function every second
if(spawnTime>=1){
  spawnEnemy();
  spawnTime=0;
}

//draw all the rectangles to the batch you added in the list
for(Rectangle rect: myList){
  batch.draw(rect,rect.x,rect.y,rect.w,rect.h);
}

Note: Declare spawnTime globally.