Update README

LICENSE

@@ -0,0 +1,18 @@
+Copyright 2014-2019 Alex Yatskov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -1,4 +1,4 @@
-# Tetrys #
+# Tetrys
 
 Tetrys is a minimalist Tetris clone written in Python. It is cross-platform compatible and has basic gamepad support.
 There is presently no way to configure what the buttons do; that is an exercise left to the reader.
@@ -8,15 +8,6 @@ When running the application you can press the <kbd>N</kbd> key to start a new g
 of the current piece, and <kbd>Space</kbd> drops it to the bottom of the well instantly. A small shadow tetrad at the
 bottom of the well indicates where the current piece will fall.
 
-## Requirements ##
+Tetrys requires [Python](http://www.python.org/) and [pygame](http://www.pygame.org/).
 
-*   [Python 2.7](http://www.python.org/download/releases/2.7/)
-*   [pygame](http://www.pygame.org/)
-
-## Screenshots ##
-
-[![Game window](https://foosoft.net/projects/tetrys/img/tetrys-thumb.png)](https://foosoft.net/projects/tetrys/img/tetrys.png)
-
-## License ##
-
-MIT
+![](img/tetrys.png)

tetrys.py

@@ -35,8 +35,8 @@ class Tetrad:
         layout = list()
 
         mask = self.block_configs[self.config][1] >> (16 * self.rotation)
-        for bit in xrange(16):
-            position = bit % 4, bit / 4
+        for bit in range(16):
+            position = bit % 4, bit // 4
             if mask & (1 << bit):
                 layout.append((self.position[0] + position[0], self.position[1] + position[1]))
 
@@ -60,7 +60,7 @@ class Tetrad:
 
 
     def centered(self, width):
-        return Tetrad((width / 2 - 2, 0), self.config, self.rotation)
+        return Tetrad((width // 2 - 2, 0), self.config, self.rotation)
 
 
     @staticmethod
@@ -113,8 +113,8 @@ class Board:
 
 
     def render_blocks(self, surface):
-        for y in xrange(self.grid_dims[1]):
-            for x in xrange(self.grid_dims[0]):
+        for y in range(self.grid_dims[1]):
+            for x in range(self.grid_dims[0]):
                 self.render_block(surface, self.blocks[y][x], (x, y))