1 files changed, 35 insertions, 0 deletions
diff --git a/turtetris_master/led_output.py b/turtetris_master/led_output.py
index 1b3c435..ecc4d57 100644
--- a/turtetris_master/led_output.py
+++ b/turtetris_master/led_output.py
@@ -1,5 +1,6 @@
 import zmq
 import json
+import copy
 
 
 class Matrix:
@@ -35,3 +36,37 @@ class Matrix:
         for x in range(self.width):
             for y in range(self.height):
                 self.pixel(x, y, color)
+
+    def set_matrix(self, matrix):
+        "Set given matrix as matrix"
+        for x in range(self.width):
+            for y in range(self.height):
+                self.pixel(x, y, matrix[y][x])
+
+    def copy_matrix(self):
+        "Return copy of current matrix"
+        return copy.deepcopy(self.__mat__)
+
+    def matrix_diff(self, matrix):
+        """
+        Returns set of changes in matrix
+        Every item in set is dictionary with following items:
+            x: X position of led
+            y: Y position of led
+            color: string defining color of given led
+        """
+        change = list()
+        for x in range(self.width):
+            for y in range(self.height):
+                if matrix[y][x] != self.__mat__[y][x]:
+                    change.append({
+                        'x': x,
+                        'y': y,
+                        'color': self.__mat__[y][x]
+                        })
+        return change
+
+    def matrix_apply_diff(self, diff):
+        "Apply diff generated by matrix_diff"
+        for change in diff:
+            self.pixel(change['x'], change['y'], change['color'])