Turret1extended

import java.util.ArrayList;
import java.util.Iterator;

/**
 * Subclass inherits Tower data and methods for Tower1
 * @author Sina, Christian and Elliott
 * @version June 16,2014
 */
public class Tower1 extends Tower
{  
	/**
	 * Constructs a Tower1 object
	 * @param x the x coordinate of the Tower1
	 * @param y the y coordinate of the Tower1
	 * @param speed the speed of the Tower1 bullets
	 * @param firingRate the firing rate of the Tower1
	 */
	public Tower1(int x, int y, int speed, int firingRate)
	{
		super(x,y, firingRate, 500, 100,
				150, speed, 10, 20, 30, "tower1Drag");
		
		this.type=1;
		
	}
	/**
	 * Overrides the Tower alienSelect method for the Tower1 so it shoots Bombs if it has the explode upgrade
	 */
	public void alienSelect(ArrayList<Alien> aliens, ArrayList <Bullet> bullets)
	{
		// Increase the time of the tower by the time interval for the timerEventHandler
		this.time += 35;
		// Iterator to go through all the aliens
		Iterator<Alien> it = aliens.iterator();
		// If the tower doesn't have an alien to fire at, try to find one
		if (!this.hasAlien)
		{

			int index = 0;
			int indexOfClosestAlien = -1;
			// Goes through the aliens until there is one that is alive, on screen and in range
			while (!(this.hasAlien) && it.hasNext())
			{

				Alien nextAlien = it.next();
				if (this.alienInRange(nextAlien) && nextAlien.isAlive()&&nextAlien.onScreen())
				{
					indexOfClosestAlien = index;
					this.hasAlien = true;
				}
				index++;
			}
			// If no alien meets the condition, the tower doesn't have an alien to fire at

			if (indexOfClosestAlien == -1)
				this.hasAlien = false;
			// Otherwise, keep going until the closest alien is found
			else
			{
				// Initially the closest alien is the alien that was in range, alive and on screen from the previous loop
				closestAlien = aliens.get(indexOfClosestAlien);
				// Go through the remaining aliens and if the distance from the alien to the tower is less than the closest alien
				// it becomes the new closest alien

				while (it.hasNext())
				{
					Alien nextAlien = it.next();
					if ((nextAlien.xPos() - this.xPos)
							* (nextAlien.xPos() - this.xPos)
							+ (nextAlien.yPos() - this.yPos)
							* (nextAlien.yPos() - this.yPos) < (closestAlien
							.xPos() - this.xPos)
							* (closestAlien.xPos() - this.xPos)
							+ (closestAlien.yPos() - this.yPos)
							* (closestAlien.yPos() - this.yPos)
							&& nextAlien.isAlive()&&nextAlien.onScreen())
						closestAlien = nextAlien;
				}
				this.time = 0;
			}
		}
		if (this.hasAlien)
		{
			// If the alien is on the screen, alive, in range and the firingRate time has passed, then fire a bullet at the alien
			if (this.alienInRange(closestAlien) && closestAlien.isAlive()&&closestAlien.onScreen())
			{
				if (this.time % firingRate == 0)
				{
				// If the tower has an explode upgrade, fire a bullet, otherwise fire a bomb
					if (!explodeUpgrade)
					bullets.add(new Bullet(this.xPos, this.yPos, this.sizeOfBullets,
							this.speed, this.damage, this.closestAlien,this));
					else
						bullets.add(new Bomb(this.xPos, this.yPos, this.closestAlien,this));
				}
				
					
			}
			// Otherwise set the tower to find a new alien to fire at the next time the method is called
			else
				this.hasAlien = false;
		}

		

	}
	
	


/**
 * Overrides the Tower method and returns false since Tower1 can't have freeze upgrade
 */
	public boolean isFreezing()
	{
		return false;
	}
/**
 * Overrides the Tower method and returns false since Tower1 can't have laser upgrade	
 */
	public boolean isLaser()
	{
		return false;
	}

	

}