Add GameState class

map0.txt

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+
+

map1.txt

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map3.txt

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\ No newline at end of file

src/GameState.java

+/*** In The Name of Allah ***/
+
+import java.awt.*;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+import java.awt.event.KeyListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+import java.awt.event.MouseMotionListener;
+import java.awt.geom.AffineTransform;
+import java.awt.image.BufferedImage;
+
+/**
+ * This class holds the state of game and all of its elements.
+ * This class also handles user inputs, which affect the game state.
+ *
+ * @author Seyed Mohammad Ghaffarian
+ */
+public class GameState {
+
+	public int locX, locY, diam;
+	public boolean gameOver;
+
+	private boolean keyUP, keyDOWN, keyRIGHT, keyLEFT;
+	private boolean mousePress;
+	private int mouseX, mouseY;
+	private KeyHandler keyHandler;
+	private MouseHandler mouseHandler;
+	public double rotateAmount;
+
+	public GameState() {
+		locX = 100;
+		locY = 100;
+		diam = 42;
+		rotateAmount = 0;
+		gameOver = false;
+		//
+		keyUP = false;
+		keyDOWN = false;
+		keyRIGHT = false;
+		keyLEFT = false;
+		//
+		mousePress = false;
+		mouseX = 0;
+		mouseY = 0;
+		//
+		keyHandler = new KeyHandler();
+		mouseHandler = new MouseHandler();
+	}
+
+	/**
+	 * The method which updates the game state.
+	 */
+	public void update() {
+		if (rotateAmount >= 360 || rotateAmount <= -360) rotateAmount = 0;
+		if (mousePress) {
+			locY = mouseY - diam / 2;
+			locX = mouseX - diam / 2;
+		}
+		if (keyUP) {
+			move(+5);
+
+		}
+		if (keyDOWN) {
+			move(-5);
+
+		}
+		if (keyLEFT)
+			rotateAmount -= 10;
+
+		if (keyRIGHT)
+			rotateAmount += 10;
+
+		locX = Math.max(locX, 42 );
+		locX = Math.min(locX, GameFrame.GAME_WIDTH - diam -160);
+		locY = Math.max(locY, 50);
+		locY = Math.min(locY, GameFrame.GAME_HEIGHT - diam-160);
+	}
+
+	public void move(int px) {
+		double d;
+
+		if (rotateAmount == 0) locX += px;
+		if (rotateAmount == 90 || rotateAmount == -270) locY += px;
+		if (rotateAmount == -90 || rotateAmount == 270) locY -= px;
+		if (rotateAmount == 180 || rotateAmount == -180) locX -= px;
+
+		if ((rotateAmount > 0 && rotateAmount < 90) || (rotateAmount < -270 && rotateAmount > -360)) {
+			if (px > 0) {
+				locX += px * Math.cos(rotateAmount * Math.PI / 180);
+				locY += px * Math.sin(rotateAmount * Math.PI / 180);
+			} else {
+				locX += px * Math.cos(rotateAmount * Math.PI / 180);
+				locY += px * Math.sin(rotateAmount * Math.PI / 180);
+			}
+		}
+		if ((rotateAmount > 90 && rotateAmount < 180) || (rotateAmount < -180 && rotateAmount > -270)) {
+			if (px > 0) {
+				d = rotateAmount - 90;
+				locX -= px * Math.sin(d * Math.PI / 180);
+				locY += px * Math.cos(d * Math.PI / 180);
+			} else {
+				d = rotateAmount + 270;
+				locX -= px * Math.sin(d * Math.PI / 180);
+				locY += px * Math.cos(d * Math.PI / 180);
+			}
+		}
+		if ((rotateAmount > 180 && rotateAmount < 270) || (rotateAmount < -90 && rotateAmount > -180)) {
+
+			if (px > 0) {
+				d = rotateAmount - 180;
+				locX -= px * Math.cos(d * Math.PI / 180);
+				locY -= px * Math.sin(d * Math.PI / 180);
+			} else {
+				d = rotateAmount + 180;
+				locX -= px * Math.cos(d * Math.PI / 180);
+				locY -= px * Math.sin(d * Math.PI / 180);
+			}
+		}
+		if ((rotateAmount > 270 && rotateAmount < 360) || (rotateAmount < 0 && rotateAmount > -90)) {
+
+			if (px > 0) {
+				d = rotateAmount - 270;
+				locX += px * Math.sin(d * Math.PI / 180);
+				locY -= px * Math.cos(d * Math.PI / 180);
+			} else {
+				d = rotateAmount + 90;
+				locX += px * Math.sin(d * Math.PI / 180);
+				locY -= px * Math.cos(d * Math.PI / 180);
+			}
+
+		}
+
+	}
+
+	public KeyListener getKeyListener() {
+		return keyHandler;
+	}
+
+	public MouseListener getMouseListener() {
+		return mouseHandler;
+	}
+
+	public MouseMotionListener getMouseMotionListener() {
+		return mouseHandler;
+	}
+
+
+	/**
+	 * The keyboard handler.
+	 */
+	class KeyHandler extends KeyAdapter {
+
+		@Override
+		public void keyPressed(KeyEvent e) {
+			switch (e.getKeyCode()) {
+				case KeyEvent.VK_UP:
+					keyUP = true;
+					break;
+				case KeyEvent.VK_DOWN:
+					keyDOWN = true;
+					break;
+				case KeyEvent.VK_LEFT:
+					keyLEFT = true;
+					break;
+				case KeyEvent.VK_RIGHT:
+					keyRIGHT = true;
+					break;
+				case KeyEvent.VK_ESCAPE:
+					gameOver = true;
+					break;
+			}
+		}
+
+		@Override
+		public void keyReleased(KeyEvent e) {
+			switch (e.getKeyCode()) {
+				case KeyEvent.VK_UP:
+					keyUP = false;
+					break;
+				case KeyEvent.VK_DOWN:
+					keyDOWN = false;
+					break;
+				case KeyEvent.VK_LEFT:
+					keyLEFT = false;
+					break;
+				case KeyEvent.VK_RIGHT:
+					keyRIGHT = false;
+					break;
+			}
+		}
+
+	}
+
+	/**
+	 * The mouse handler.
+	 */
+	class MouseHandler extends MouseAdapter {
+
+		@Override
+		public void mousePressed(MouseEvent e) {
+			mouseX = e.getX();
+			mouseY = e.getY();
+			mousePress = true;
+		}
+
+		@Override
+		public void mouseReleased(MouseEvent e) {
+			mousePress = false;
+		}
+
+		@Override
+		public void mouseDragged(MouseEvent e) {
+			mouseX = e.getX();
+			mouseY = e.getY();
+		}
+	}
+}
+