4gewinnt: added gui-layout and testing methods

src/main/java/de/tims/viergewinnt/ai/Logic.java

@@ -1,6 +1,42 @@
 package de.tims.viergewinnt.ai;
 
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+
 public class Logic {
+	
+	//only for testing, remove when finished
+	static JFrame content;
+	
+	static JPanel contentPanel;
+	static JPanel buttonPanel;
+	static JPanel playfieldPanel;
+	
+	public static JPanel create4gewinntGui() {
+		
+		//only for testing, remove when finished
+		content = new JFrame();
+		content.setSize(200,200);
+		
+		contentPanel = new JPanel();
+		
+		//only for testing, remove when finished
+		content.add(contentPanel);
+		
+		buttonPanel = new JPanel();
+		playfieldPanel = new JPanel();
+		contentPanel.add(buttonPanel);
+		contentPanel.add(playfieldPanel);
+		
+		return contentPanel;
+	}
+	
+	//only for testing, remove when finished
+	public static void main(String[] args) {
+		create4gewinntGui();
+		content.setVisible(true);
+	}
+	
 	public boolean testForWin(int[][] playfield, int player) {
 		int chain = 0;
 		for(int i = 0; i < playfield[0].length; i++) {