Truncate messages if they are too large

squirrelbattle/display/display.py

@@ -19,7 +19,20 @@ class Display:
     def newpad(self, height: int, width: int) -> Union[FakePad, Any]:
         return curses.newpad(height, width) if self.screen else FakePad()
 
+    def truncate(self, msg: str, height: int, width: int) -> str:
+        lines = msg.split("\n")
+        lines = lines[:height]
+        lines = [line[:width] for line in lines]
+        return "\n".join(lines)
+
     def addstr(self, pad: Any, y: int, x: int, msg: str, *options) -> None:
+        """
+        Display a message onto the pad.
+        If the message is too large, it is truncated vertically and horizontally
+        """
+        height, width = pad.getmaxyx()
+        msg = self.truncate(msg, height - y, width - x)
+        if msg.replace("\n", ""):
             return pad.addstr(y, x, msg, *options)
 
     def init_pair(self, number: int, foreground: int, background: int) -> None: