added gamestates and started pause screen

src/de/miaurizius/jgame2d/core/GamePanel.java

@@ -31,7 +31,7 @@ public class GamePanel extends JPanel implements Runnable {
 
     // SYSTEM
     TileManager tileM = new TileManager(this);
-    KeyHandler keyH = new KeyHandler();
+    KeyHandler keyH = new KeyHandler(this);
     Sound se = new Sound();
     Sound music = new Sound();
     public CollisionHandler collisionH = new CollisionHandler(this);
@@ -43,6 +43,9 @@ public class GamePanel extends JPanel implements Runnable {
     public Player player = new Player(this, keyH);
     public SuperObject[] obj = new SuperObject[10];
 
+    // GAME STATE
+    public GameState gameState;
+
     public GamePanel() {
         this.setPreferredSize(new Dimension(screenWidth, screenHeight));
         this.setBackground(Color.black);
@@ -54,6 +57,7 @@ public class GamePanel extends JPanel implements Runnable {
     public void setupGame() {
         assetSetter.setObject();
         playMusic(0); //Play main theme
+        gameState = GameState.PLAY;
     }
 
     public void startGameThread() {
@@ -91,7 +95,13 @@ public class GamePanel extends JPanel implements Runnable {
     }
 
     public void update() {
-        player.update();
+        switch(gameState) {
+            case PLAY:
+                player.update();
+                break;
+            case PAUSE:
+                break;
+        }
     }
 
     public void paintComponent(Graphics graphics) {

src/de/miaurizius/jgame2d/core/GameState.java

@@ -0,0 +1,8 @@
+package de.miaurizius.jgame2d.core;
+
+public enum GameState {
+
+    PLAY,
+    PAUSE;
+
+}

src/de/miaurizius/jgame2d/core/KeyHandler.java

@@ -6,9 +6,14 @@ import java.awt.event.KeyListener;
 public class KeyHandler implements KeyListener {
 
     public boolean upPressed, downPressed, leftPressed, rightPressed;
+    public GamePanel panel;
     // DEBUG
     public boolean checkDrawTime = false;
 
+    public KeyHandler(GamePanel panel) {
+        this.panel = panel;
+    }
+
     @Override
     public void keyTyped(KeyEvent e) {}
 
@@ -16,11 +21,17 @@ public class KeyHandler implements KeyListener {
     public void keyPressed(KeyEvent e) {
         int code = e.getKeyCode();
         switch (code) {
+            // CONTROLS
             case KeyEvent.VK_W, KeyEvent.VK_UP -> upPressed = true;
             case KeyEvent.VK_S, KeyEvent.VK_DOWN -> downPressed = true;
             case KeyEvent.VK_A, KeyEvent.VK_LEFT -> leftPressed = true;
             case KeyEvent.VK_D, KeyEvent.VK_RIGHT -> rightPressed = true;
+
+            // DEBUG OPTIONS
             case KeyEvent.VK_T -> checkDrawTime = !checkDrawTime;
+
+            // GAME STATES
+            case KeyEvent.VK_ESCAPE -> panel.gameState = (panel.gameState == GameState.PAUSE) ? GameState.PLAY : GameState.PAUSE;
         }
     }
 

src/de/miaurizius/jgame2d/core/UI.java

@@ -1,29 +1,26 @@
 package de.miaurizius.jgame2d.core;
 
-import de.miaurizius.jgame2d.object.KeyObj;
-
 import java.awt.*;
-import java.awt.image.BufferedImage;
 import java.text.DecimalFormat;
 
 public class UI {
 
     GamePanel panel;
+    Graphics graphics2d;
     Font arial_40, arial_80B;
-    BufferedImage keyImage;
+    DecimalFormat df = new DecimalFormat("#0.00");
+
     public boolean messageOn = false;
     public String message;
-    int msgC = 0;
     public boolean gameFinished = false;
 
+    int msgC = 0;
     double playTime;
-    DecimalFormat df = new DecimalFormat("#0.00");
 
     public UI(GamePanel panel) {
         this.panel = panel;
         arial_40 = new Font("Arial", Font.PLAIN, 40);
         arial_80B = new Font("Arial", Font.BOLD, 80);
-        keyImage = new KeyObj(panel).image;
     }
 
     public void showMessage(String text) {
@@ -32,52 +29,28 @@ public class UI {
     }
 
     public void draw(Graphics graphics2d) {
-        if(gameFinished) {
+        this.graphics2d = graphics2d;
-            graphics2d.setFont(arial_40);
-            graphics2d.setColor(Color.white);
-            String text = "You found the treasure!";
-            int textLength = (int) graphics2d.getFontMetrics().getStringBounds(text, graphics2d).getWidth();
-            int x,y;
-            x = panel.screenWidth/2 - textLength/2;
-            y = panel.screenHeight/2 - (panel.tileSize*3);
-            graphics2d.drawString(text, x, y);
-
-            text = "Your time is: " + df.format(playTime) + "!";
-            textLength = (int) graphics2d.getFontMetrics().getStringBounds(text, graphics2d).getWidth();
-            x = panel.screenWidth/2 - textLength/2;
-            y = panel.screenHeight/2 + (panel.tileSize*4);
-            graphics2d.drawString(text, x, y);
-
-            graphics2d.setFont(arial_80B);
-            graphics2d.setColor(Color.yellow);
-            text = "Congratulations!";
-            textLength = (int) graphics2d.getFontMetrics().getStringBounds(text, graphics2d).getWidth();
-            x = panel.screenWidth/2 - textLength/2;
-            y = panel.screenHeight/2 + (panel.tileSize*2);
-            graphics2d.drawString(text, x, y);
-
-            panel.gameThread = null;
-            return;
-        }
-
-        // MESSAGE
         graphics2d.setFont(arial_40);
         graphics2d.setColor(Color.white);
-        graphics2d.drawImage(keyImage, panel.tileSize/2, panel.tileSize/2, panel.tileSize,  panel.tileSize, null);
-        graphics2d.drawString("x " + panel.player.hasKey, 74, 65);
 
-        // TIME
+        switch (panel.gameState) {
-        playTime += (double) 1/panel.FPS;
+            case PLAY:
-        graphics2d.drawString("Time: " + df.format(playTime), panel.tileSize*11, 65);
 
-        if(messageOn) {
+                break;
-            graphics2d.setFont(panel.getFont().deriveFont(30F));
+            case PAUSE:
-            graphics2d.drawString(message, panel.tileSize/2, panel.tileSize*5);
+                drawPauseScreen();
-            msgC++;
+                break;
-            if(msgC <= 120) return; //text stays 2 seconds
-            msgC = 0;
-            messageOn = false;
         }
     }
 
+    public void drawPauseScreen() {
+        String text = "PAUSED";
+        int y = panel.screenHeight / 2;
+        graphics2d.drawString(text, getCenteredX(text), y);
+    }
+
+    public int getCenteredX(String text) {
+        return panel.screenWidth / 2 - (int) graphics2d.getFontMetrics().getStringBounds(text, graphics2d).getWidth() / 2;
+    }
+
 }