first working implementation

common.py

@@ -0,0 +1,22 @@
+import numpy as np
+
+
+class Packet:
+    def __init__(self, x: int, y: int, array: np.ndarray):
+        self.x = x
+        self.y = y
+        self.array = array
+        
+    def to_bytestr(self) -> bytes:
+        bytestr = b""
+        bytestr += self.x.to_bytes(length=4, signed = False)
+        bytestr += self.y.to_bytes(length=4, signed = False)
+        bytestr += self.array.tobytes()
+        return bytestr
+
+def from_bytes(b: bytes) -> Packet:
+    x = int.from_bytes(b[0:4], signed = False)
+    y = int.from_bytes(b[4:8], signed = False)
+    array = np.frombuffer(b[8:], np.uint8).reshape(16, 16, 3)
+
+    return Packet(x, y, array)