Space Invaders Blog Post

GameState.java

import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.tcg.spaceinvaders.managers.GameStateManager;

public abstract class GameState {

	protected GameStateManager gsm;
	
	public GameState(GameStateManager gsm) {
		this.gsm = gsm;
		init();
	}
	
	protected abstract void init();
	public abstract void handleInput();
	public abstract void update(float dt);
	public abstract void draw(float dt, SpriteBatch sb, ShapeRenderer sr);
	public abstract void resize(int width, int height);
	public abstract void dispose();
	
}

GameState2.java

package com.tcg.spaceinvaders.gamestates;

import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.tcg.spaceinvaders.managers.GameStateManager;

public abstract class GameState {

	protected GameStateManager gsm;
	
	public GameState(GameStateManager gsm) {
		this.gsm = gsm;
		init();
	}
	
	protected abstract void init();
	public abstract void handleInput();
	public abstract void update(float dt);
	public abstract void draw(float dt, SpriteBatch sb, ShapeRenderer sr);
	public abstract void resize(int width, int height);
	public abstract void dispose();
	
}