Merge branch 'malte-ai' into 'master'

Malte ai

See merge request !8

src/player/MalteAI.java

@@ -1,26 +0,0 @@
-package player;
-
-import java.util.Random;
-
-public class MalteAI implements Player{
-
-    private String name;
-    private Random ran;
-
-    public MalteAI(String name){
-        this.name = name;
-        this.ran = new Random();
-    }
-
-    public int move(int[][] board){
-        int choice = ran.nextInt(7);
-        while (board[choice][0] != 0) {
-            choice = ran.nextInt(7);
-        }
-        return choice;
-    }
-
-    public String getName(){
-        return this.name;
-    }
-}

src/player/malte/MalteAI.java

@@ -0,0 +1,50 @@
+package player;
+
+import java.util.Random;
+import java.util.Set;
+import java.util.HashSet;
+import java.util.Arrays;
+
+public class MalteAI implements Player{
+
+    private String name;
+    private Random ran;
+
+    public MalteAI(String name){
+        this.name = name;
+        this.ran = new Random();
+    }
+
+    public int move(int[][] board){
+        Set<Integer> options = new HashSet<>(Arrays.asList(0,1,2,3,4,5,6));
+        for (Integer i: copySet(options)) {
+            if (board[i][0] != 0) {
+                options.remove(i);
+            }
+        }
+        // Set<Integer> preventions = getPreventionOptions(options, board);
+
+        return takeRandom(options).intValue();
+    }
+
+    private Set<Integer> copySet(Set<Integer> s) {
+        return new HashSet<Integer>(s);
+    }
+
+    private Integer takeRandom(Set<Integer> s) {
+        int item = ran.nextInt(s.size());
+        int i = 0;
+        for (Object obj: s) {
+            if (i == item) {
+                return (Integer) obj;
+            }
+            i++;
+        }
+        // TODO: Change this
+        return 0;
+    }
+
+    public String getName(){
+        return this.name;
+    }
+}