From 0505a0868e61a0344713a8fdb93c733d492c28b9 Mon Sep 17 00:00:00 2001
From: Andrin Fassbind <fassband@students.zhaw.ch>
Date: Wed, 4 May 2022 21:08:34 +0200
Subject: [PATCH] rdy to do first tests

---
 src/TM.java | 47 ++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 40 insertions(+), 7 deletions(-)

diff --git a/src/TM.java b/src/TM.java
index 4db3fb3..f0ec42c 100644
--- a/src/TM.java
+++ b/src/TM.java
@@ -11,9 +11,11 @@ public class TM {
     private List<Character> band;
     private int leseKopf;
     private Map<Character, Integer> alphabet;
+    private int numberOfSteps;
 
 
     public TM(String codierung, String bandInitialisierung) {
+        numberOfSteps = 0;
         leseKopf = 0;
         band = new ArrayList<>();
         this.codierung = codierung;
@@ -24,32 +26,64 @@ public class TM {
 
     }
 
+    public void start() {
+        while (!checkWin()) {
+            try {
+                calcOneStep();
+                System.out.println("Step: "+numberOfSteps);
+                System.out.println(this);
+            } catch (TmException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
     private void calcOneStep() throws TmException {
         boolean found = false;
         for (String[] str : funktionen) {
             if (str[0].length() == aktuellerZustand && str[1].length() == alphabet.get(band.get(leseKopf))) {
                 found = true;
                 writeOnBand(str);
+                numberOfSteps++;
                 break;
             }
         }
-
         if (!found) {
             throw new TmException("Couldn't find matching function for Character on band");
         }
     }
 
     private void writeOnBand(String[] str) {
-        aktuellerZustand = str[2].length();
-
-        //TODO Find corect char from Integer value
         for (Character c : alphabet.keySet()) {
-            if(alphabet.get(c) == str[3].length()) {
+            if (alphabet.get(c) == str[3].length()) {
                 band.set(leseKopf, c);
             }
         }
+        if (str[4].length() == 2) {
+            leseKopf += 1;
+        } else {
+            leseKopf--;
+        }
+        aktuellerZustand = str[2].length();
+    }
 
-        //TODO Position von lesekopf
+    public String toString() {
+        StringBuilder stringBuilder = new StringBuilder();
+
+        for (int i = 0; i < 15 - leseKopf; i++) {
+            stringBuilder.append('_');
+        }
+        for (Character c : band) {
+            stringBuilder.append(c);
+        }
+        for (int i = 0; i < 15; i++) {
+            stringBuilder.append('_');
+        }
+        return stringBuilder.toString();
+    }
+
+    private boolean checkWin() {
+        return aktuellerZustand == endZustand;
     }
 
     private void parse() {
@@ -58,7 +92,6 @@ public class TM {
             funktionen[i] = liste[i].split("1");
         }
         aktuellerZustand = funktionen[0][0].length();
-        //TODO Startzustand wissen?
     }
 
     private void initBand(String bandInit) {