DiscoSheep/src/gibstick/bukkit/discosheep/DiscoParty.java

package gibstick.bukkit.discosheep;

import java.util.ArrayList;
import java.util.List;
import org.bukkit.DyeColor;
import org.bukkit.Location;
import org.bukkit.Sound;
import org.bukkit.World;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Player;
import org.bukkit.entity.Sheep;

/**
 *
 * @author Georgiy
 */
public class DiscoParty {

	private DiscoSheep ds;
	private Player player;
	private ArrayList<Sheep> sheepList= new ArrayList<Sheep>();
	private int duration, frequency = 20, numSheep = 5;
	private final int defaultDuration = 300; // ticks for entire party
	private final int defaultFrequency = 10; // ticks per state change
	private final int sheepSpawnRadius = 5;
	private final int defaultSheepAmount = 10;
	private int state = 0;
	private DiscoUpdater updater;
	private static final DyeColor[] discoColours = {
		DyeColor.RED,
		DyeColor.ORANGE,
		DyeColor.YELLOW,
		DyeColor.GREEN,
		DyeColor.BLUE,
		DyeColor.LIGHT_BLUE,
		DyeColor.PINK,
		DyeColor.MAGENTA,
		DyeColor.LIME,
		DyeColor.CYAN,
		DyeColor.PURPLE
	};

	public DiscoParty(DiscoSheep parent, Player player) {
		this.ds = parent;
		this.player = player;
	}

	List<Sheep> getSheep() {
		return sheepList;
	}

	void spawnSheep(World world, Location loc) {
		Sheep newSheep = (Sheep) world.spawnEntity(loc, EntityType.SHEEP);
		newSheep.setMaxHealth(10000);
		newSheep.setHealth(10000);
		newSheep.setColor(discoColours[(int) Math.round(Math.random() * (discoColours.length - 1))]);
		newSheep.setTarget(player);
		newSheep.setBreed(false);
		getSheep().add(newSheep);
	}

	// Spawn some number of sheep next to given player
	void spawnSheep(int num) {
		Location loc;
		World world = player.getWorld();

		for (int i = 0; i < num; i++) {
			double x, y, z;

			// random x and z coordinates within a 5 block radius
			// safe y-coordinate
			x = -sheepSpawnRadius + (Math.random() * ((sheepSpawnRadius * 2) + 1)) + player.getLocation().getX();
			z = -sheepSpawnRadius + (Math.random() * ((sheepSpawnRadius * 2) + 1)) + player.getLocation().getZ();
			y = world.getHighestBlockYAt((int) x, (int) z);
			loc = new Location(world, x, y, z);
			spawnSheep(world, loc);
		}
	}

	// Mark all sheep in the sheep array for removal, then clear the array
	void removeAllSheep() {
		for (Sheep sheep : getSheep()) {
			sheep.setHealth(0);
			sheep.remove();
		}
		getSheep().clear();
	}

	// Set a random colour for all sheep in array
	void randomizeSheepColour(Sheep sheep) {
			sheep.setColor(discoColours[(int) Math.round(Math.random() * (discoColours.length - 1))]);
	}
	
	void updateAllSheep() {
		for (Sheep sheep: getSheep()) {
			randomizeSheepColour(sheep);
		}
	}

	void playSounds() {
		player.playSound(player.getLocation(), Sound.NOTE_BASS_DRUM, 1.0f, 1.0f);
		if(this.state%2 == 0){
			player.playSound(player.getLocation(), Sound.NOTE_SNARE_DRUM, 1.0f, 1.0f);
		}
		if(this.state%3 == 0){
			player.playSound(player.getLocation(), Sound.NOTE_STICKS, 1.0f, 1.0f);
		}
		player.playSound(player.getLocation(), Sound.BURP, 0.5f, (float) Math.random() + 1);
	}

	void update() {
		if (duration > 0) {
			updateAllSheep();
			playSounds();
			duration -= frequency;
			this.scheduleUpdate();
			this.state++;
		} else {
			this.stopDisco();
		}
	}

	void scheduleUpdate() {
		updater = new DiscoUpdater(this);
		updater.runTaskLater(ds, this.frequency);
	}

	void startDisco(int duration) {
		if (this.duration > 0) {
			stopDisco();
		}
		this.spawnSheep(this.defaultSheepAmount);
		this.frequency = this.defaultFrequency;
		this.duration = this.defaultDuration;
		this.scheduleUpdate();
		ds.getPartyMap().put(this.player.getName(), this);
	}

	void startDisco() {
		this.startDisco(this.defaultDuration);
	}

	void stopDisco() {
		removeAllSheep();
		this.duration = 0;
		if (updater != null) {
			updater.cancel();
		}
		updater = null;
		ds.getPartyMap().remove(this.player.getName());
	}
}