Add weight calculation heuristic

src/classes/Heuristic.py

@@ -0,0 +1,38 @@
+class ReversiHeuristic():
+    def __init__(self, logger, weight = [1, 2, 10, 20]):
+        self.logger = logger
+        self.weight = weight
+
+    def get(self, board):
+        size = board.get_board_size()
+        score = 0
+        weights = self._get_weight(size)
+        for pos_x in range(size):
+            for pos_y in range(size):
+                if board._board[pos_x][pos_y] == board._nextPlayer:
+                    score += weights[pos_x][pos_y]
+                else:
+                    score -= weights[pos_x][pos_y]
+        return score
+        
+    def _get_weight(self, size):
+        w = [[ 0 for _ in range(size)] for _ in range(size)]
+
+        for pos_y in range(size):
+            for pos_x in range(size):
+
+                # Elements in the corner
+                if pos_x in [0, size -1] and pos_y in [0,size - 1]:
+                    w[pos_x][pos_y] = self.weight[3]
+                
+                # Elements on the border
+                elif pos_x in [0, size -1] or pos_y in [0, size -1]:
+                    w[pos_x][pos_y] = self.weight[2]
+                
+                # Element the center
+                elif pos_x in range( int(size // 2 - 2), size // 2 + 2) and pos_y in range( size // 2 - 2, size // 2 + 2):
+                    w[pos_x][pos_y] = self.weight[1]
+
+                else:
+                    w[pos_x][pos_y] = self.weight[0]
+        return w