From 12876e151de909eded81e2c2992f33abf5cf09f0 Mon Sep 17 00:00:00 2001
From: JDenu <jegatheeswarade84077>
Date: Wed, 22 Dec 2021 16:55:43 +0100
Subject: [PATCH] 4

---
 src/Life.java | 148 +++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 140 insertions(+), 8 deletions(-)

diff --git a/src/Life.java b/src/Life.java
index 84ab855..6c52a5d 100644
--- a/src/Life.java
+++ b/src/Life.java
@@ -1,11 +1,16 @@
+import java.util.Arrays;
+
 public class Life implements ILife {
-  
+
+  static String[] welt = new String[]{
+          "     ",
+          "     ",
+          " *** ",
+          "     ",
+          "     "};
+
   public static void main(String[] args) {
-    Life l = new Life(new String[] {  "     ",
-                                      "     ",
-                                      " *** ",
-                                      "     ",
-                                      "     " });
+    Life l = new Life(welt);
     l = (Life) l.nextGeneration();
   }
 
@@ -20,36 +25,163 @@ public class Life implements ILife {
       for (int x = 0; x < setup[y].length(); x++)
         if (setup[y].charAt(x) != ' ')
           setAlive(x, y);
+    printWelt();
   }
 
+  public void printWelt() {
+    for (int i = 0; i < welt.length; i++)
+      System.out.println(Arrays.toString(new String[]{welt[i]}));
+  }
 
   @Override
   public void nukeAll() {
     // TODO Auto-generated method stub
 
+    for (int y = 0; y < welt.length; y++)
+      for (int x = 0; x < welt[y].length(); x++)
+        setDead(x, y);
   }
 
   @Override
   public void setAlive(int x, int y) {
     // TODO Auto-generated method stub
 
+    welt[y] = welt[y].substring(0, x) + '*' + welt[y].substring(x + 1);
   }
 
   @Override
   public void setDead(int x, int y) {
     // TODO Auto-generated method stub
 
+    welt[y] = welt[y].substring(0, x) + ' ' + welt[y].substring(x + 1);
   }
 
   @Override
   public boolean isAlive(int x, int y) {
     // TODO Auto-generated method stub
-    return false;
+
+    if (welt[y].charAt(x) == '*')
+      return true;
+    else
+      return false;
   }
 
   @Override
   public ILife nextGeneration() {
     // TODO Auto-generated method stub
-    return null;
+
+    String[] neueWelt = new String[]{
+            "     ",
+            "     ",
+            "     ",
+            "     ",
+            "     "};
+
+    //Zellen einzeln betrachten
+    for (int y = 0; y < welt.length; y++)
+      for (int x = 0; x < welt[y].length(); x++) {
+
+        //anzahl der lebenden nachbarn
+        int nachbarn = lebendeNachbarn(y, x);
+
+        //neue Zelle
+        //TODO fehler wenn x = 0
+        if (nachbarn == 3) {
+          if (x > 0 && x < welt[0].length() - 1) {
+            neueWelt[y] = neueWelt[y].substring(0, x - 1) + '*' + neueWelt[y].substring(x);
+          } else if (x == 0) {
+            neueWelt[y] = '*' + neueWelt[y].substring(x);
+          } else {
+            neueWelt[y] = neueWelt[y].substring(0, x - 1) + '*';
+          }
+        }
+
+        //eine Zelle stirbt an überpopulation oder einsamkeit
+        //TODO fehler wenn x = 0
+        if (nachbarn < 2 || nachbarn > 3) {
+          if (x > 0 && x < welt[0].length() - 1) {
+            System.out.println(welt[0].length());
+            System.out.print(nachbarn);
+            System.out.print(", " + x);
+            System.out.println(", " + y);
+            neueWelt[y] = neueWelt[y].substring(0, x - 1) + ' ' + neueWelt[y].substring(x);
+          } else if (x == 0) {
+            neueWelt[y] = ' ' + neueWelt[y].substring(x);
+          } else {
+            neueWelt[y] = neueWelt[y].substring(0, x - 1) + ' ';
+          }
+        }
+
+        //eine Zelle bleibt am Leben
+        //TODO fehler wenn x = 0
+        if ((nachbarn == 2) && (welt[y].charAt(x) == '*')) {
+          if (x > 0 && x < welt[0].length() - 1) {
+            neueWelt[y] = neueWelt[y].substring(0, x - 1) + '*' + neueWelt[y].substring(x);
+          } else if (x == 0) {
+            neueWelt[y] = '*' + neueWelt[y].substring(x);
+          } else {
+            neueWelt[y] = neueWelt[y].substring(0, x - 1) + '*';
+          }
+        }
+      }
+    return new Life(neueWelt);
+  }
+
+  public int lebendeNachbarn(int y, int x) { // 1, 1
+
+    int nachbarn = 0;
+
+    //linke nachbars-spalte
+    if (x > 0) {
+      if (y > 0) {
+        if (welt[y - 1].charAt(x - 1) == '*') {
+          nachbarn++;
+        }
+      }
+      if (welt[y].charAt(x - 1) == '*') {
+        nachbarn++;
+      }
+      if (y < welt.length - 1) {
+        if (welt[y + 1].charAt(x - 1) == '*') {
+          nachbarn++;
+        }
+      }
+    }
+
+    //rechte nachbars-spalte
+    if (x < welt[0].length() - 1) {
+      if (y > 0) {
+        if (welt[y - 1].charAt(x + 1) == '*') {
+          nachbarn++;
+        }
+      }
+      if (welt[y].charAt(x + 1) == '*') {
+        nachbarn++;
+      }
+      if (y < welt.length - 1) {
+        if (welt[y + 1].charAt(x + 1) == '*') {
+          nachbarn++;
+        }
+      }
+    }
+
+    // mittlere Spalte
+    if (y > 0) {
+      if (welt[y - 1].charAt(x) == '*') {
+        nachbarn++;
+      }
+    }
+    if (y < welt.length - 1) {
+      if (welt[y + 1].charAt(x) == '*') {
+        nachbarn++;
+      }
+    }
+
+    return nachbarn;
+  }
+
+  @Override
+  public String toString() {
+    return super.toString();
   }
 }
\ No newline at end of file