Fix VLD_301 for multiple snipes in a row

Resolves #31

Author: HSZemi

src/__tests__/models/Validator.test.tsx

@@ -418,6 +418,24 @@ it('Snipe globally banned civ', () => {
     expect(errors).toEqual([]);
 });
 
+it('Double Snipe', () => {
+    let preset = new Preset("test", Civilisation.ALL, [
+        new Turn(Player.HOST, Action.PICK, Exclusivity.GLOBAL),
+        new Turn(Player.HOST, Action.PICK, Exclusivity.GLOBAL),
+        new Turn(Player.HOST, Action.PICK, Exclusivity.GLOBAL),
+        new Turn(Player.GUEST, Action.SNIPE, Exclusivity.GLOBAL),
+        new Turn(Player.GUEST, Action.SNIPE, Exclusivity.GLOBAL),
+    ]);
+    const validator = new Validator(prepareReadyStore(preset, [
+        new PlayerEvent(Player.HOST, ActionType.PICK, Civilisation.AZTECS),
+        new PlayerEvent(Player.HOST, ActionType.PICK, Civilisation.BRITONS),
+        new PlayerEvent(Player.HOST, ActionType.PICK, Civilisation.CHINESE),
+        new PlayerEvent(Player.GUEST, ActionType.SNIPE, Civilisation.BRITONS),
+    ]));
+    const errors: ValidationId[] = validator.validateAndApply(DRAFT_ID, new PlayerEvent(Player.GUEST, ActionType.SNIPE, Civilisation.CHINESE));
+    expect(errors).toEqual([]);
+});
+
 
 const prepareStore = (preset: Preset, events: DraftEvent[] = []): DraftsStore => {
     const draft = new Draft(NAME_HOST, NAME_GUEST, preset);

src/models/Validation.ts

@@ -170,7 +170,7 @@ export class Validation {
                         return false;
                     }
                     const index = Validation.indexOfSnipe(picksByOpponent, sniped);
-                    picksByOpponent.splice(index);
+                    picksByOpponent.splice(index, 1);
                 }
             }
         }