1 files changed, 45 insertions, 0 deletions
diff --git a/robots/constants.py b/robots/constants.py
new file mode 100644
index 0000000..4c36cce
--- /dev/null
+++ b/robots/constants.py
@@ -0,0 +1,45 @@
+DIRECTIONS = {
+    'U': (0, -1),
+    'D': (0, 1),
+    'L': (-1, 0),
+    'R': (1, 0),
+}
+
+class City:
+    NORMAL = '.'
+    GHOST = 'X'
+    FACTORY = '+'
+
+    # Cities which can pledge allegiance.
+    # Allegiable is totally a real word.
+    # No, really, it is.
+    # Why doesn't anyone believe me?!!
+    # /sobs
+    allegiable = (NORMAL, FACTORY)
+
+    # Cities which robots can move into.
+    traversable = (NORMAL, FACTORY)
+
+class Action:
+    UP = 'U'
+    DOWN = 'D'
+    LEFT = 'L'
+    RIGHT = 'R'
+    PROMOTE = 'P'
+    NOTHING = '-'
+
+    all = (UP, DOWN, LEFT, RIGHT, PROMOTE, NOTHING)
+
+class Energy:
+    INITIAL = 6
+    MAXIMUM = 9
+    GAIN = 2
+
+ENERGY_BY_ACTION = {
+    Action.UP: 3,
+    Action.DOWN: 3,
+    Action.LEFT: 3,
+    Action.RIGHT: 3,
+    Action.PROMOTE: 4,
+    Action.NOTHING: 0,
+}