Add Hex map capabilities.

[plomrogue2-experiments] / new2 / plomrogue / mapping.py

diff --git a/new2/plomrogue/mapping.py b/new2/plomrogue/mapping.py
index 2edbea84809acbfc759aed7993e603ffdb9c74e6..e0a59d8e225f56af79b0b516bb7f6e366de164a4 100644 (file)
--- a/new2/plomrogue/mapping.py
+++ b/new2/plomrogue/mapping.py
@@ -1,4 +1,5 @@
 import collections
+from plomrogue.errors import ArgError
 
 
 
@@ -63,6 +64,38 @@ class MapGeometrySquare(MapGeometryWithLeftRightMoves):
 
 
 
+class MapGeometryHex(MapGeometryWithLeftRightMoves):
+
+    def move_UPLEFT(self, start_pos):
+        start_indented = start_pos.y % 2
+        if start_indented:
+            return YX(start_pos.y - 1, start_pos.x)
+        else:
+            return YX(start_pos.y - 1, start_pos.x - 1)
+
+    def move_UPRIGHT(self, start_pos):
+        start_indented = start_pos.y % 2
+        if start_indented:
+            return YX(start_pos.y - 1, start_pos.x + 1)
+        else:
+            return YX(start_pos.y - 1, start_pos.x)
+
+    def move_DOWNLEFT(self, start_pos):
+        start_indented = start_pos.y % 2
+        if start_indented:
+            return YX(start_pos.y + 1, start_pos.x)
+        else:
+            return YX(start_pos.y + 1, start_pos.x - 1)
+
+    def move_DOWNRIGHT(self, start_pos):
+        start_indented = start_pos.y % 2
+        if start_indented:
+            return YX(start_pos.y + 1, start_pos.x + 1)
+        else:
+            return YX(start_pos.y + 1, start_pos.x)
+
+
+
 class Map():
 
     def __init__(self, map_size):
@@ -89,8 +122,8 @@ class Map():
         if y >= height_map:
             raise ArgError('too large row number %s' % y)
         width_line = len(line)
-        if width_line > width_map:
-            raise ArgError('too large map line width %s' % width_line)
+        if width_line != width_map:
+            raise ArgError('map line width %s unequal map width %s' % (width_line, width_map))
         self.terrain = self.terrain[:y * width_map] + line +\
                        self.terrain[(y + 1) * width_map:]