Add requirements and enable simple Python 2/3 compatibility.

hexmap.py

@@ -3,10 +3,12 @@ from math import ceil
 
 from kivy.logger import Logger
 from kivy.uix.label import Label
-from kivy.graphics import Color, Line
+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'])
 
 
@@ -19,8 +21,32 @@ class HexMapCell(Label):
         self.cube_coords = self.even_r_to_cube(self.coords.row / 3, self.coords.col / 2)
         self.selected = False
         self.visible_on_map = False
+
+        # Pick a random terrain for each hex.
+        self.terrain = choose_random_terrain()
         self.terrain_colour = Color(0, 0, 0, 1)
-        self.terrain = ''
+
+        # Determine the location of the solid hexagon cell.  Needs to be offset from the centre of the hex.
+        radius = self.height / 2
+        solid_x = self.x - self.height
+        solid_y = self.y - self.height
+        solid_size = (self.height, self.height)
+
+        with self.canvas.after:
+            # Create the solid background of the hexagon, from the bottom left coordinate of the hex.
+            self.terrain_colour = kivy.utils.get_color_from_hex(Terrains[self.terrain]['color'])
+            Color(*self.terrain_colour)
+            self.solid = Ellipse(pos=(solid_x, solid_y), size=solid_size, segments=6)
+
+            # Create the outline of hexagon, based off the centre of the hex.
+            Color(*kivy.utils.get_color_from_hex('#000000'))
+            self.ell = Line(circle=(self.x, self.y, radius, 0, 360, 6), width=2)
+
+            Color(0, 0, 0, 1)
+            self.coord_label = Label(
+                text=self.map_display_text(),
+                center_x=self.x,
+                center_y=self.y)
 
     @staticmethod
     def even_r_to_cube(row, col):

launch_app.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+python main.py --size=1280x700

main.py

@@ -1,12 +1,8 @@
 from kivy import app, properties
-from kivy.uix.label import Label
 from kivy.uix.floatlayout import FloatLayout
-from kivy.graphics import Color, Ellipse, Line, Rectangle
-import kivy.utils
-
+from kivy.graphics import Color, Rectangle
 
 from hexmap import HexMapCell
-from terrain import choose_random_terrain, Terrains
 
 
 class StrategyGame(FloatLayout):
@@ -33,31 +29,6 @@ class StrategyGame(FloatLayout):
                 hex_cell.disabled = False
                 hex_cell.visible_on_map = True
 
-                # Determine the location of the solid hexagon cell.  Needs to be offset from the centre of the hex.
-                radius = 2 * hex_cell.height
-                solid_x = hex_cell.x - hex_cell.height*2
-                solid_y = hex_cell.y - hex_cell.height*2
-                solid_size = (4*hex_cell.height, 4*hex_cell.height)
-
-                with hex_cell.canvas.after:
-                    # Pick a random terrain for each hex.
-                    hex_cell.terrain = choose_random_terrain()
-
-                    # Create the solid background of the hexagon, from the bottom left coordinate of the hex.
-                    hex_cell.terrain_colour = kivy.utils.get_color_from_hex(Terrains[hex_cell.terrain]['color'])
-                    Color(*hex_cell.terrain_colour)
-                    hex_cell.solid = Ellipse(pos=(solid_x, solid_y), size=solid_size, segments=6)
-
-                    # Create the outline of hexagon, based off the centre of the hex.
-                    Color(*kivy.utils.get_color_from_hex('#000000'))
-                    hex_cell.ell = Line(circle=(hex_cell.x, hex_cell.y, radius, 0, 360, 6), width=2)
-
-                    Color(0, 0, 0, 1)
-                    hex_cell.coord_label = Label(
-                        text=hex_cell.map_display_text(),
-                        center_x=hex_cell.x,
-                        center_y=hex_cell.y)
-
                 # Bind the cell code so as to update its position and size when the parent widget resizes.
                 hex_cell.bind(pos=hex_cell.update_pos, size=hex_cell.update_pos)
 

strategygame.kv

@@ -33,5 +33,5 @@
                 background_color: .75, .71, .99, 1
 
 <HexMapCell>:
-    size_hint: 1, None
-    height: self.width / math.sqrt(3)
+#    size_hint: 1, 1
+#    height: self.width / math.sqrt(3)