fix: .ncs will now show an error if setting a pixel fails

src/NadekoBot/Modules/Games/NCanvas/NCanvasCommands.cs

@@ -171,7 +171,23 @@ public partial class Games
                 return;
             }
 
-            await _service.SetPixel(position, clr.PackedValue, text, ctx.User.Id, pixel.Price);
+            var result = await _service.SetPixel(position, clr.PackedValue, text, ctx.User.Id, pixel.Price);
+
+            if (result == SetPixelResult.NotEnoughMoney) 
+            {
+                await Response().Error(strs.not_enough(_gcs.Data.Currency.Sign)).SendAsync();
+                return;
+            }
+            else if (result == SetPixelResult.InsufficientPayment)
+            {
+                await Response().Error(strs.nc_insuff_payment).SendAsync();
+                return;
+            }
+            else if (result == SetPixelResult.InvalidInput)
+            {
+                await Response().Error(strs.invalid_input).SendAsync();
+                return;
+            }
 
             using var img = await GetZoomImage(position);
             await using var stream = await img.ToStreamAsync();

src/NadekoBot/data/strings/responses/responses.en-US.json

@@ -1109,6 +1109,7 @@
   "invalid_color": "Color you've specified is invalid.",
   "nc_pixel_set_confirm": "Are you sure you want to set pixel {0}? It will cost you {1}",
   "nc_hint": "Use `{0}nczoom x y` command to zoom in. Image is {1}x{2} pixels.",
+  "nc_insuff_payment": "Invalid payment.",
   "invalid_img_size": "Image must to be {0}x{1} pixels.",
   "no_attach_found": "No attachment found. Please send the image along with this command." 
 }