lesson2

BattleFieldTemplate.java

/*
 * Copyright (c) 2014 kademika.com
 */
package lesson2;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.WindowConstants;

public class BattleFieldTemplate extends JPanel {

	boolean COLORDED_MODE = true;
	
	int tankX = 0;
	int tankY = 0;
	
	long speed = 225;
	
	/**
	 * Write your code here.
	 */
	void runTheGame() throws Exception {
		
		while (true) {
			for (int i = 0; i < 9; i ++) {
				tankX += 64;
				repaint();
				Thread.sleep(speed);
				if (tankX < 512) {
					continue;
				}
				break;
			}
			for (int i = 0; i < 8; i ++) {
				tankX -= 64;
				repaint();
				Thread.sleep(speed);
			}
		}
	}
	
	void move(int direction) throws Exception {
		
		repaint();
		Thread.sleep(speed);
		
		if (direction == 1) {
			if (tankY !=0) {
				tankY -= 64;
				repaint();
				System.out.println("Up: " + tankX + "_" + tankY);
				Thread.sleep(speed * 2);
			}
			else System.out.println("Wrong direction");
		}
			
		else if (direction == 2) {
			if (tankY != 512) {
				tankY += 64;
				repaint();
				System.out.println("Down: " + tankX + "_" + tankY);
				Thread.sleep(speed * 2);
			}
			else System.out.println("Wrong direction");
		}
		
		else if (direction == 3) {
			if (tankX != 0) {
				tankX -= 64;
				repaint();
				System.out.println("Left: " + tankX + "_" + tankY);
				Thread.sleep(speed * 2);
			}
			else System.out.println("Wrong direction");
		}
		
		else if (direction == 4) {
			if (tankX != 512) {
				tankX += 64;
				repaint();
				System.out.println("Right: " + tankX + "_" + tankY);
				Thread.sleep(speed * 2);
			}
			else System.out.println("Wrong direction");
		}
	}
	
	
	// Magic bellow. Do not worry about this now, you will understand everything in this course.
	// Please concentrate on your tasks only.

	final int BF_WIDTH = 576;
	final int BF_HEIGHT = 576;
	
	public static void main(String[] args) throws Exception {
		BattleFieldTemplate bf = new BattleFieldTemplate();
//		bf.runTheGame();
		bf.move(1);
		bf.move(2);
		bf.move(3);
		bf.move(4);
		bf.move(4);
		bf.move(1);
		bf.move(2);
		bf.move(2);
	}

	public BattleFieldTemplate() throws Exception {
		JFrame frame = new JFrame("BATTLE FIELD, DAY 2");
		frame.setLocation(500, 150);
		frame.setMinimumSize(new Dimension(BF_WIDTH, BF_HEIGHT + 22));
		frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
		frame.getContentPane().add(this);
		frame.pack();
		frame.setVisible(true);
	}

	@Override
	protected void paintComponent(Graphics g) {
		super.paintComponent(g);
		
		int i = 0;
		Color cc;
		for (int v = 0; v < 9; v++) {
			for (int h = 0; h < 9; h++) {
				if (COLORDED_MODE) {
					if (i % 2 == 0) {
						cc = new Color(252, 241, 177);
					} else {
						cc = new Color(233, 243, 255);
					}
				} else {
					cc = new Color(180, 180, 180);
				}
				i++;
				g.setColor(cc);
				g.fillRect(h * 64, v * 64, 64, 64);
			}
		}
		
		g.setColor(new Color(255, 0, 0));
		g.fillRect(tankX, tankY, 64, 64);
	}
}

Frame17.java

package lesson2;

public class Frame17 {

	public static void main(String[] args) {
		
		System.out.println(oldEnough(2));
	}
	
	static boolean oldEnough(int age) {
		
		if (age >= 21){
			return true;
		}
		return false;
	}
}

Frame19.java

package lesson2;

public class Frame19 {

	public static void main(String[] args) {
		
		System.out.println(min(3, -377, -111));
	}
	
	static int min(int a, int b, int c) {
		
		int min = a;
		if (min > b){
			min = b;
		}
		if (min > c){
			min = c;
		}
		return min;
	}
}

Frame21.java

package lesson2;

public class Frame21 {

	public static void main(String[] args) {
		
		System.out.println(min(-73, -778, -111));
	}
	
	static int min(int a, int b, int c){
		if (a < b && a < c){
			return a;
		}
		else if (b < c){
			return b;
		}
		return c;
	}
}

Frame23.java

package lesson2;

public class Frame23 {

	public static void main(String[] args) {
		
		System.out.println(isSpring(-2));
		System.out.println(isSpring(2));
		System.out.println(isSpring(6));
	}
	
	static int isSpring(int month) {
		
		if (month == 4 || month == 5 || month ==6){
			return 1;
		}
		if (month <=0 || month > 12){
			return -1;
		}
		return 0;
	}
}

Frame25.java

package lesson2;

public class Frame25 {

	public static void main(String[] args) {
		
		//System.out.println(getQuadrant("b", "2"));
		printCoordinates("a", "2");
		printCoordinates("c", "1");
		printCoordinates("i", "9");
	}
	/**
	 * - TANKS-
	 * @param v
	 * @param h
	 * @return
	 */
	static String getQuadrant(String v, String h) {
		
		String x = null;
		String y = null;
		String [] vertical = {"a", "b", "c", "d", "e", "f", "g", "h", "i"};
		for (int i = 0; i < 9; i++){
			if (vertical[i] == v) {
				x = String.valueOf(i * 64);
			}
		}
		
		int j = Integer.parseInt(h);
		y = String.valueOf((j-1) * 64);
		
		return x + "_" + y;
	}
	
	static void printCoordinates(String v, String h){
		
		int dotIndex = getQuadrant(v, h).indexOf("_");
		String pix1 = getQuadrant(v, h).substring(0,dotIndex);
		String pix2 = getQuadrant(v, h).substring(dotIndex + 1);
		
		System.out.println(v + h + ":" + "(" + pix1 + "px;" + pix2 + "px)");
	}
}

Frame31.java

package lesson2;

public class Frame31 {

	public static void main(String[] args) {
		
		int i = 1;
		while (true){
			System.out.println(i);
			i++;
			if (i == 11) {
				break;
			}
		}
	}
}

Frame32.java

package lesson2;

public class Frame32 {

	public static void main(String[] args) {
		
		int i = 1;
		while (i <= 10){
			System.out.println(i);
			i++; 
			if (i <= 10) {
				continue;
			}
			break;
		}
	}
}

Frame4.java

package lesson2;

public class Frame4 {

	public static void main(String[] args) {
		
		hello("Agata");
	}
	
	public static void hello(String name) {
		
		System.out.println("Hello " + name);
	}
}

Frame5.java

package lesson2;

public class Frame5 {

	public static void main(String[] args) {
		
		sum(2, 4);
		sum(2, -4);
	}
	
	public static void sum(int num1, int num2) {
		
		System.out.println(num1 + num2);
	}
}

Frame6.java

package lesson2;

public class Frame6 {

	public static void main(String[] args) {
		
		System.out.println(square(7));
		System.out.println(square(8.0));
	}
	
	static double square(double number) {
		return number * number;
	}
	
	static int square(int number){
		return number * number;
	}
}

Homework4.java

package lesson2;

public class Homework4 {

	public static void main(String[] args) {
		
		start(9);
	}
	
	static void start(int number) {
		if (number > 0) {
			for (int i = number; i > 0; i--) {
				System.out.println(i);
			}
			System.out.println("Go!");
		}
		else {
			System.out.println("Start failed!");
		}
	}
}

Homework5.java

package lesson2;

public class Homework5 {

	public static void main(String[] args) {
		
		printNumbers(14, 60);
	}
	
	static void printNumbers(int i, int n) {
		
		while (i < n) {
			n++;
			i = i+2;
			System.out.println(i + ":" + n);
		}
	}
}