Expand night powers

Signed-off-by: Bobloy <alboblexloy@gmail.com>

werewolf/night_powers.py

@@ -3,3 +3,21 @@ from werewolf.role import Role
 
 def night_immune(role: Role):
     role.player.alive = True
+
+
+async def pick_target(role: Role, ctx, data):
+    if not role.player.alive:  # FixMe: Game handles this?
+        await role.player.send_dm("You're already dead!")
+        return None
+
+    target_id = int(data)
+    try:
+        target = role.game.players[target_id]
+    except IndexError:
+        target = None
+
+    if target is None:
+        await ctx.send("Not a valid ID")
+        return None
+
+    return target_id, target

werewolf/roles/seer.py

@@ -1,3 +1,4 @@
+from werewolf.night_powers import pick_target
 from werewolf.role import Role
 
 
@@ -83,19 +84,7 @@ class Seer(Role):
 
     async def choose(self, ctx, data):
         """Handle night actions"""
-        if not self.player.alive:  # FixMe: Game handles this?
-            await self.player.send_dm("You're already dead!")
-            return
+        await super().choose(ctx, data)
 
-        target_id = int(data)
-        try:
-            target = self.game.players[target_id]
-        except IndexError:
-            target = None
-
-        if target is None:
-            await ctx.send("Not a valid ID")
-            return
-
-        self.see_target = target_id
+        self.see_target, target = await pick_target(self, ctx, data)
         await ctx.send("**You will attempt to see the role of {} tonight...**".format(target.member.display_name))