Added Special Stones

lib/game/board.dart

@@ -1,6 +1,8 @@
 import 'dart:math';
 
+import 'package:bubbletwist/game/stone/quad_special_stone.dart';
 import 'package:bubbletwist/game/stone/special_stone.dart';
+import 'package:bubbletwist/game/stone/triple_special_stone.dart';
 
 import '../enums/stone_color.dart';
 import 'game.dart';
@@ -11,13 +13,16 @@ import 'stone/stone_location.dart';
 class Board {
   static const int boardSize = 8;
   final Game game;
-  late final List<List<Stone?>> stones = List.generate(boardSize, (i) => List.generate(boardSize, (j) => Stone()));
+  late final List<List<Stone?>> stones =
+      List.generate(boardSize, (i) => List.generate(boardSize, (j) => Stone()));
+  bool specialStonesEnabled = false;
 
   Board(this.game) {
     // The map generates with pairs of 3+ stones already in place.
     // To fix that we just let the game remove all 3+ stone pairs until none are left
     while (checkBoard()) {}
   }
+
   void updateBoard() {
     game.updateBoard();
   }
@@ -99,13 +104,13 @@ class Board {
               removeStone(st);
               stuffDeleted = true;
             }
-            if (counter == 3 && game.isRunning()) {
-              //stones[row][startPosition] = TripleSpecialStone(this);
+            if (counter == 3 && game.isRunning() && specialStonesEnabled) {
+              stones[row][startPosition] = TripleSpecialStone(this);
             }
-            if (counter == 4 && game.isRunning()) {
-              //stones[row][startPosition] = QuadSpecialStone(this, false);
+            if (counter == 4 && game.isRunning() && specialStonesEnabled) {
+              stones[row][startPosition] = QuadSpecialStone(this, false);
             }
-            if (counter == 5 && game.isRunning()) {
+            if (counter == 5 && game.isRunning() && specialStonesEnabled) {
               stones[row][startPosition] = PentaSpecialStone(this);
             }
           }
@@ -148,13 +153,13 @@ class Board {
               removeStone(st);
               stuffDeleted = true;
             }
-            if (counter == 3 && game.isRunning()) {
-              //stones[startPosition][column] = TripleSpecialStone(this);
+            if (counter == 3 && game.isRunning() && specialStonesEnabled) {
+              stones[startPosition][column] = TripleSpecialStone(this);
             }
-            if (counter == 4 && game.isRunning()) {
-              //stones[startPosition][column] = QuadSpecialStone(this, true);
+            if (counter == 4 && game.isRunning() && specialStonesEnabled) {
+              stones[startPosition][column] = QuadSpecialStone(this, true);
             }
-            if (counter == 5 && game.isRunning()) {
+            if (counter == 5 && game.isRunning() && specialStonesEnabled) {
               stones[startPosition][column] = PentaSpecialStone(this);
             }
           }

lib/game/game.dart

@@ -1,5 +1,7 @@
 import 'dart:async';
 
+import 'package:bubbletwist/game/stone/triggerable_special_stone.dart';
+
 import '../enums/stone_color.dart';
 import 'board.dart';
 import 'i_game_consumer.dart';
@@ -108,12 +110,12 @@ class Game {
   }
 
   bool performSpecialStone(StoneLocation sl) {
-    /*Stone? s = getStone(sl);
+    Stone? s = getStone(sl);
     if (s is TriggerableSpecialStone) {
       s.setActivationLocation(sl);
       board.performSpecialStone(s, sl);
       return true;
-    }*/
+    }
     return false;
   }
 }

lib/game/stone/quad_special_stone.dart

@@ -0,0 +1,40 @@
+import 'package:bubbletwist/game/stone/stone_location.dart';
+import 'package:bubbletwist/game/stone/triggerable_special_stone.dart';
+
+import '../board.dart';
+
+class QuadSpecialStone extends TriggerableSpecialStone {
+  bool vertical;
+
+  QuadSpecialStone(super.board, this.vertical);
+
+  @override
+  int getSpecialStoneNumber() {
+    return 4;
+  }
+
+  @override
+  void performSpecialStoneAction() {
+    StoneLocation sl = StoneLocation(row: 0, column: 0);
+    if (vertical) {
+      for (int i = 0; i < Board.boardSize; ++i) {
+        if (i == row) {
+          continue; // Skip Stone itself to prevent self deleting
+        }
+        sl.row = i;
+        sl.column = column;
+
+        board.removeStone(sl);
+      }
+    } else {
+      for (int i = 0; i < Board.boardSize; ++i) {
+        if (i == column) {
+          continue; // Skip Stone itself to prevent self deleting
+        }
+        sl.row = row;
+        sl.column = i;
+        board.removeStone(sl);
+      }
+    }
+  }
+}

lib/game/stone/special_stone.dart

@@ -1,10 +1,14 @@
+import 'package:bubbletwist/enums/stone_color.dart';
+
 import '../board.dart';
 import 'stone.dart';
 
 abstract class SpecialStone extends Stone {
   final Board board;
 
-  SpecialStone(this.board);
+  SpecialStone(this.board) {
+    setColor(StoneColors.special);
+  }
 
   /// Returns the associated number of the special stone
   int getSpecialStoneNumber();

lib/game/stone/triggerable_special_stone.dart

@@ -0,0 +1,14 @@
+import 'package:bubbletwist/game/stone/special_stone.dart';
+import 'package:bubbletwist/game/stone/stone_location.dart';
+
+abstract class TriggerableSpecialStone extends SpecialStone {
+  late int row;
+  late int column;
+
+  TriggerableSpecialStone(super.board);
+
+  void setActivationLocation(StoneLocation sl) {
+    row = sl.row;
+    column = sl.column;
+  }
+}

lib/game/stone/triple_special_stone.dart

@@ -0,0 +1,25 @@
+import 'package:bubbletwist/game/stone/stone_location.dart';
+import 'package:bubbletwist/game/stone/triggerable_special_stone.dart';
+
+class TripleSpecialStone extends TriggerableSpecialStone {
+  TripleSpecialStone(super.board);
+
+  @override
+  int getSpecialStoneNumber() {
+    return 3;
+  }
+
+  @override
+  void performSpecialStoneAction() {
+    // remove stone checks the array bounds
+    board.removeStone(StoneLocation(row: row + 1, column: column));
+    board.removeStone(StoneLocation(row: row + 1, column: column + 1));
+    board.removeStone(StoneLocation(row: row + 1, column: column - 1));
+    board.removeStone(StoneLocation(row: row, column: column));
+    board.removeStone(StoneLocation(row: row, column: column + 1));
+    board.removeStone(StoneLocation(row: row, column: column - 1));
+    board.removeStone(StoneLocation(row: row - 1, column: column));
+    board.removeStone(StoneLocation(row: row - 1, column: column + 1));
+    board.removeStone(StoneLocation(row: row - 1, column: column - 1));
+  }
+}

lib/main.dart

@@ -360,8 +360,15 @@ class _MyHomePageState extends State<MyHomePage> implements IGameConsumer {
 
   void handleTap(int row, int col) {
     if (sl1 == null) {
+      if (game.getStoneColor(StoneLocation(row: row, column: col)) ==
+          StoneColors.special) {
+        game.performSpecialStone(StoneLocation(row: row, column: col));
+        sl1 = null;
+        return;
+      } else {
         sl1 = StoneLocation(row: row, column: col);
         return;
+      }
     } else {
       game.swapStones(sl1!, StoneLocation(row: row, column: col));
       sl1 = null;