Implemented walker class and methods random_turn, next_pos, move_in_bounds

dungeonbattle/mapgeneration/randomwalk.py

@@ -1,9 +1,46 @@
+from enum import Enum
 from random import choice, random, randint
 from dungeonbattle.interfaces import Map, Tile
 
+
+
+
+class Directions(Enum):
+    up = auto()
+    down = auto()
+    left = auto()
+    right = auto()
+
+
+class Walker:
+
+    def __init__(self, x, y):
+        self.x = x
+        self.y = y
+        self.dir = choice(list(Directions))
+
+    def random_turn(self):
+        self.dir = choice(list(Directions))
+
+    def next_pos(self):
+        if self.dir == Directions.up:
+            return self.x, self.y + 1
+        elif self.dir == Directions.down:
+            return self.x, self.y - 1
+        elif self.dir == Directions.right:
+            return self.x + 1, self.y
+        elif self.dir == Directions.left:
+            return self.x - 1, self.y
+
+    def move_in_bounds(self, width, height):
+        nx, ny = self.next_pos()
+        if 0 < nx < width and 0 < ny < height:
+            self.x, self.y = nx, ny
+
+
 class Generator:
 
-    def __init__(self, params):
+    def __init__(self, params = DEFAULT_PARAMS):
         self.params = params
 
     def run(self):