GameInstance.java

package de.swagner.paxbritannica;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Preferences;
import com.badlogic.gdx.Application.ApplicationType;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.utils.Array;

import de.swagner.paxbritannica.bomber.Bomb;
import de.swagner.paxbritannica.bomber.Bomber;
import de.swagner.paxbritannica.factory.FactoryProduction;
import de.swagner.paxbritannica.fighter.Fighter;
import de.swagner.paxbritannica.fighter.Laser;
import de.swagner.paxbritannica.frigate.Frigate;
import de.swagner.paxbritannica.frigate.Missile;
import de.swagner.paxbritannica.particlesystem.BigBubbleParticleEmitter;
import de.swagner.paxbritannica.particlesystem.ExplosionParticleEmitter;
import de.swagner.paxbritannica.particlesystem.BubbleParticleEmitter;
import de.swagner.paxbritannica.particlesystem.SparkParticleEmitter;

public class GameInstance {
	
	public boolean debugMode = false;

	public Array<Ship> fighters = new Array<Ship>();
	public Array<Ship> factorys = new Array<Ship>();
	public Array<Ship> bombers = new Array<Ship>();
	public Array<Ship> frigates = new Array<Ship>();

	public Array<Bullet> bullets = new Array<Bullet>();

	public BubbleParticleEmitter bubbleParticles = new BubbleParticleEmitter();
	public BigBubbleParticleEmitter bigBubbleParticles = new BigBubbleParticleEmitter();

	public SparkParticleEmitter sparkParticles = new SparkParticleEmitter();
	public ExplosionParticleEmitter explosionParticles = new ExplosionParticleEmitter();
	public int difficultyConfig = 0;
	public int factoryHealthConfig = 0;
	public int antiAliasConfig = 0;	

	public static GameInstance instance;

	public static GameInstance getInstance() {
		if (instance == null) {
			instance = new GameInstance();
		}
		return instance;
	}
	
	public void resetGame() {
		fighters.clear();
		factorys.clear();
		bombers.clear();
		frigates.clear();
		bullets.clear();
		
		bubbleParticles.dispose();
		bigBubbleParticles.dispose();
		sparkParticles.dispose();
		explosionParticles.dispose();

		bubbleParticles = new BubbleParticleEmitter();
		bigBubbleParticles = new BigBubbleParticleEmitter();

		sparkParticles = new SparkParticleEmitter();
		explosionParticles = new ExplosionParticleEmitter();
		
		Preferences prefs = Gdx.app.getPreferences("paxbritannica");
		GameInstance.getInstance().difficultyConfig  = prefs.getInteger("difficulty",0);
		GameInstance.getInstance().factoryHealthConfig  = prefs.getInteger("factoryHealth",0);
		GameInstance.getInstance().antiAliasConfig  = prefs.getInteger("antiAliasConfig",1);
	}

	public void bulletHit(Ship ship, Bullet bullet) {
		bullet.facing.nor();
		float offset=0;
		if(ship instanceof FactoryProduction) offset = 50;
		if(ship instanceof Frigate) offset = 20;
		if(ship instanceof Bomber) offset = 10;
		if(ship instanceof Fighter) offset = 10;
		Vector2 pos = new Vector2().set(bullet.collisionCenter.x + (offset * bullet.facing.x), bullet.collisionCenter.y + (offset * bullet.facing.y));

		// ugh. . .
		Vector2 bullet_vel = new Vector2().set(bullet.velocity);

		Vector2 bullet_dir;
		if (bullet_vel.dot(bullet_vel) == 0) {
			bullet_dir = new Vector2();
		} else {
			bullet_dir = bullet_vel.nor();
		}
		Vector2 vel = new Vector2(bullet_dir.x * 1.5f, bullet_dir.y * 1.5f);

		if (bullet instanceof Laser) {
			laser_hit(pos, vel);
		} else if (bullet instanceof Bomb) {
			explosionParticles.addMediumExplosion(bullet.position);
		} else if (bullet instanceof Missile) {
			explosionParticles.addTinyExplosion(bullet.position);
		}
	}

	public void laser_hit(Vector2 pos, Vector2 vel) {
		sparkParticles.addLaserExplosion(pos, vel);
	}

	public void explode(Ship ship) {
		explode(ship, ship.collisionCenter);
	}

	public void explode(Ship ship, Vector2 pos) {

		if (ship instanceof FactoryProduction) {
			explosionParticles.addBigExplosion(pos);
		} else if (ship instanceof Bomber) {
			explosionParticles.addMediumExplosion(pos);
		} else if (ship instanceof Frigate) {
			explosionParticles.addMediumExplosion(pos);
		}else {
			explosionParticles.addSmallExplosion(pos);
		}
	}

}