Initial work on implementing a network mode for communication with a server program.

lib/gtpsocket.py

@@ -0,0 +1,49 @@
+# A socket class for communicating in Go Text Protocol
+#
+# A simple connect method is defined, and everything else is
+# suffixed with _gtp, so that this can be subclassed easily,
+# e.g. for communicating with a server
+
+import socket
+
+class GTPSocket:
+    def __init__(self, info):
+        self.info = info
+        self.socket = None
+
+
+    def connect(self):
+        try:
+            self.socket = socket.create_connection(info)
+            return True
+        except:
+            return False
+
+
+    def get_gtp(self):
+        msg = None
+
+        while msg is None:
+            try:
+                msg = self.socket.recv(1024)
+                if not self._validate_gtp(msg):
+                    print 'Error: Incoming data was not a valid GTP message'
+                    msg = None
+            except:
+                pass
+
+
+    def send_gtp(self, msg):
+        try:
+            if _validate_gtp(msg):
+                self.socket.send(msg)
+                return True
+            else:
+                print 'Error: Outgoing data was not a valid GTP message'
+                return False
+        except:
+            return False
+
+
+    def _validate_gtp(self, gtp):
+        return True

pygo.py

@@ -86,11 +86,14 @@ def main():
     # Build the dict of image objects
     img_res = build_img_res()
 
+    # Data
+    gb = goban.Goban()
+    network_mode = False
+    our_color = None
+
     board_size = 800
     board_inc = board_size / 19
 
-    gb = goban.Goban()
-
     screen.fill((250, 250, 250))
     board = gb.draw_board(board_size, img_res)
     screen.blit(board, (0,0))
@@ -120,30 +123,34 @@ def main():
         if event.type == QUIT:
             return
 
-        # Hover a transparent stone over our
-        # cursor position, assuming play is legal
-        if event.type == MOUSEMOTION:
-            x, y = event.pos
-            row = y / board_inc
-            col = x / board_inc
+        
+        # This set of events should only be called if we can currently play
+        if network_mode == False or gb.to_move == our_color:
+            # Hover a transparent stone over our
+            # cursor position, assuming play is legal
+            if event.type == MOUSEMOTION:
+                x, y = event.pos
+                row = y / board_inc
+                col = x / board_inc
 
-            if magnitude(event.rel) < 3:
-                if x <= board_size:
-                    gb.set_hover((row,col))
-                else:
+                if magnitude(event.rel) < 3:
+                    if x <= board_size:
+                        gb.set_hover((row,col))
+                    else:
+                        gb.clear_hover()
+                elif gb.hover != gb._real_pos((row,col)):
                     gb.clear_hover()
-            elif gb.hover != gb._real_pos((row,col)):
-                gb.clear_hover()
 
-        # Place a stone on left-click
-        if event.type == MOUSEBUTTONDOWN:
-            x, y = event.pos
-            row = y / board_inc
-            col = x / board_inc
+            # Place a stone on left-click
+            if event.type == MOUSEBUTTONDOWN:
+                x, y = event.pos
+                row = y / board_inc
+                col = x / board_inc
+
+                if x <= board_size:
+                    if event.button == 1:
+                        gb.play_move((row, col))
 
-            if x <= board_size:
-                if event.button == 1:
-                    gb.play_move((row, col))
 
         # if event.type == USEREVENT:
         #     gb.elapsed_time += 1