renamed package

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

@@ -0,0 +1,86 @@
+package de.miaurizius.jgame2d.core;
+
+import de.miaurizius.jgame2d.entity.Player;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class GamePanel extends JPanel implements Runnable {
+
+    // SCREEN SETTINGS
+    final int originalTileSize = 16; //16x16 tile
+    final int scale = 3;
+
+    public final int tileSize = originalTileSize * scale; //48x48 tile
+    // 4:3 ratio
+    final int maxScreenCol = 16;
+    final int maxScreenRow = 12;
+    final int screenWidth = tileSize * maxScreenCol; // 768 pixels
+    final int screenHeight = tileSize * maxScreenRow; // 576 pixels
+
+    //FPS
+    int FPS = 60;
+
+    KeyHandler keyH = new KeyHandler();
+    Thread gameThread;
+    Player player = new Player(this, keyH);
+
+    //Default position
+    int playerX = 100;
+    int playerY = 100;
+    int playerSpeed = 4;
+
+    public GamePanel() {
+        this.setPreferredSize(new Dimension(screenWidth, screenHeight));
+        this.setBackground(Color.black);
+        this.setDoubleBuffered(true);
+        this.addKeyListener(keyH);
+        this.setFocusable(true);
+    }
+
+    public void startGameThread() {
+        gameThread = new Thread(this);
+        gameThread.start();
+    }
+
+    @Override
+    public void run() {
+        double drawInterval = 1000000000 / FPS;
+        double delta = 0;
+        double lastTime = System.nanoTime();
+        long currentTime;
+        long timer = 0;
+        int drawCount = 0;
+
+        while(gameThread != null) {
+            currentTime = System.nanoTime();
+            delta += (currentTime - lastTime) / drawInterval;
+            timer += currentTime - lastTime;
+            lastTime = currentTime;
+
+            if(delta >= 1) {
+                update();
+                repaint();
+                delta--;
+                drawCount++;
+            }
+            if(timer >= 1000000000) {
+                System.out.println("FPS: " + drawCount);
+                drawCount = 0;
+                timer = 0;
+            }
+        }
+    }
+
+    public void update() {
+        player.update();
+    }
+
+    public void paintComponent(Graphics graphics) {
+        super.paintComponent(graphics);
+        Graphics2D graphics2d = (Graphics2D) graphics;
+        player.draw(graphics2d);
+        graphics.dispose();
+    }
+
+}