Refactor code into separate modules.

doric/map.py

@@ -0,0 +1,39 @@
+from math import ceil
+
+
+class Coordinates(object):
+    def __init__(self, row, col):
+        self.row = row
+        self.col = col
+
+        # set the cube coordinates of the hexagon as [x, y, z]
+        self.cube_coords = self.even_r_to_cube(self.row, self.col)
+
+    @staticmethod
+    def even_r_to_cube(row, col):
+        """compute cube coordinates from even-r hex coordinates"""
+        x = int(col - ceil(float(row) / 2))
+        z = row
+        y = - x - z
+        return [x, y, z]
+
+    @staticmethod
+    def cube_to_even_r(x, y, z):
+        row = int(x + ceil(z / 2))
+        col = z
+        return [row, col]
+
+    @property
+    def even_r_coords(self):
+        """return even-r coordinates of the hexagon."""
+        return self.cube_to_even_r(*self.cube_coords)
+
+    @even_r_coords.setter
+    def even_r_coords(self, value):
+        self.cube_coords = self.even_r_to_cube(*value)
+
+    def even_r_coordinate_text(self):
+        return '{}'.format(self.even_r_coords)
+
+    def cube_coordinate_text(self):
+        return '{!r}'.format(self.cube_coords)

doric/tiles.py

@@ -1,26 +1,19 @@
-import collections
-from math import ceil
-
+import kivy.utils
+from kivy.graphics import Color, Line, Ellipse
 from kivy.logger import Logger
 from kivy.uix.label import Label
-from kivy.graphics import Color, Line, Ellipse
-import kivy.utils
 from kivy.vector import Vector
 
-from terrain import choose_random_terrain, Terrains
-
-MapCoords = collections.namedtuple('MapCoords', ['row', 'col'])
+from doric.map import Coordinates
+from doric.terrain import choose_random_terrain, Terrains
 
 
-class Tile(Label):
+class MapTile(Label):
     def __init__(self, row=0, col=0, **kwargs):
-        super(Tile, self).__init__(**kwargs)
-        self.coords = MapCoords(row, col)
-        # set the cube coordinates of the hexagon
-        # as [x, y, z]
-        self.cube_coords = self.even_r_to_cube(self.coords.row, self.coords.col)
-        self.selected = False
+        super(MapTile, self).__init__(**kwargs)
+        self.coords = Coordinates(row, col)
 
+        self.selected = False
         # Pick a random terrain for each hex.
         self.terrain = choose_random_terrain()
         self.terrain_colour = kivy.utils.get_color_from_hex(Terrains[self.terrain]['color'])
@@ -39,41 +32,13 @@ class Tile(Label):
 
             Color(0, 0, 0, 1)
             self.coord_label = Label(
-                text=self.even_r_coordinate_text(),
+                text=self.coords.even_r_coordinate_text(),
                 center_x=self.center_x,
                 center_y=self.center_y)
 
-    @staticmethod
-    def even_r_to_cube(row, col):
-        """compute cube coordinates from even-r hex coordinates"""
-        x = int(col - ceil(float(row)/2))
-        z = row
-        y = - x - z
-        return [x, y, z]
-
-    @staticmethod
-    def cube_to_even_r(x, y, z):
-        row = int(x + ceil(z / 2))
-        col = z
-        return [row, col]
-
-    @property
-    def even_r_coords(self):
-        """return even-r coordinates of the hexagon."""
-        return self.cube_to_even_r(*self.cube_coords)
-
-    @even_r_coords.setter
-    def even_r_coords(self, value):
-        self.cube_coords = self.even_r_to_cube(*value)
-
-    def even_r_coordinate_text(self):
-        return '{}'.format(self.even_r_coords)
-
-    def cube_coordinate_text(self):
-        return '{!r}'.format(self.cube_coords)
-
     def map_display_text(self):
-        return "{}\n{} \n {}".format(self.even_r_coordinate_text(), self.cube_coordinate_text(), self.terrain)
+        return "{}\n{} \n {}".format(
+            self.coords.even_r_coordinate_text(), self.coords.cube_coordinate_text(), self.terrain)
 
     def update_pos(self, instance, value):
 
@@ -92,10 +57,10 @@ class Tile(Label):
         self.coord_label.center_y = self.center_y
 
     def on_touch_down(self, touch):
-        if super(Tile, self).on_touch_down(touch):
+        if super(MapTile, self).on_touch_down(touch):
             return False
 
-        coord_x, coord_y = self.even_r_coords
+        coord_x, coord_y = self.coords.even_r_coords
 
         with self.canvas.after:
             Color(*kivy.utils.get_color_from_hex('#000000'))
@@ -127,3 +92,8 @@ class Tile(Label):
         Logger.debug('({}, {}) -> ({}, {})'.format(self.x, self.y, coord_x, coord_y))
         Logger.debug('Dist: {} Diff: {}'.format(dist, dist - radius))
         return dist - radius <= 0
+
+
+class SpacerTile(Label):
+    def __init__(self):
+        super(SpacerTile, self).__init__(size_hint=(0.5, 1), text=':)')

main.py

@@ -1,14 +1,8 @@
 from kivy import app, properties
-from kivy.uix.label import Label
 from kivy.uix.boxlayout import BoxLayout
 from kivy.graphics import Color, Rectangle
 
-from hexmap import Tile
-
-
-class HexSpace(Label):
-    def __init__(self):
-        super(HexSpace, self).__init__(size_hint=(0.5, 1), text=':)')
+from doric.tiles import MapTile, SpacerTile
 
 
 class StrategyGame(BoxLayout):
@@ -25,14 +19,14 @@ class StrategyGame(BoxLayout):
             hex_map_row = BoxLayout(orientation='horizontal')
 
             if row % 2 == 1:
-                hex_map_row.add_widget(HexSpace())
+                hex_map_row.add_widget(SpacerTile())
 
             for col in range(0, self.map_cols):
-                map_tile = Tile(row=row, col=col)
+                map_tile = MapTile(row=row, col=col)
                 hex_map_row.add_widget(map_tile)
 
             if row % 2 == 0:
-                hex_map_row.add_widget(HexSpace())
+                hex_map_row.add_widget(SpacerTile())
 
             self.main_map.add_widget(hex_map_row)