Remove frog from the repository.

frog/await/samples/dartcombat/grids.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/** A boat in the grid. */
-class Boat {
-  final int startX;
-  final int startY;
-  final bool horizontal;
-  final int length;
-  int hitCount = 0;
-
-  Boat(this.startX, this.startY, this.horizontal, this.length) {}
-
-  bool get sunk() => length == hitCount;
-}
-
-/** Represents a grid configuration. */
-class BoatGrid {
-  List<List<Boat>> boatMap;
-
-  BoatGrid() : boatMap = new List(Constants.SIZE) {
-    for (int i = 0; i < Constants.SIZE; i++) {
-      boatMap[i] = new List(10);
-    }
-  }
-
-  void placeBoats(List<Boat> boats) {
-    for (int b = 0; b < boats.length; b++) {
-      Boat boat = boats[b];
-      for (int i = 0; i < boat.length; i++)  {
-        int x = boat.startX + (boat.horizontal ? i : 0);
-        int y = boat.startY + (boat.horizontal ? 0 : i);
-        boatMap[x][y] = boat;
-      }
-    }
-  }
-
-  List<int> shoot(GridState state, int x, int y) {
-    assert(x >= 0);
-    assert(y >= 0);
-    assert(x < Constants.SIZE);
-    assert(y < Constants.SIZE);
-    assert(state.valueAt(x, y) == null); // repeated shot
-    Boat b = boatMap[x][y];
-    if (b == null) {
-      state.miss(x, y);
-      return const [Constants.MISS];
-    } else {
-      state.hit(x, y);
-      b.hitCount++;
-      return b.sunk ? [Constants.SUNK, b.length] : const [Constants.HIT];
-    }
-  }
-}
-
-/** Represents the current state of a boat grid. */
-class GridState {
-  List<List<int>> cells;
-
-  GridState()
-      : cells = new List(Constants.SIZE) {
-    for (int i = 0; i < Constants.SIZE; i++) {
-      cells[i] = new List(10);
-    }
-  }
-
-  int valueAt(int x, int y) => cells[x][y];
-
-  void miss(int x, int y) {
-    cells[x][y] = Constants.MISS;
-  }
-
-  void hit(int x, int y) {
-    cells[x][y] = Constants.HIT;
-  }
-
-  void pending(int x, int y) {
-    cells[x][y] = Constants.PENDING;
-  }
-
-  void clear(int x, int y) {
-    cells[x][y] = null;
-  }
-}
-
-
-/** Static constants used by the game. */
-class Constants {
-  static final SIZE = 10;
-  static final MISS = 1;
-  static final HIT = 2;
-  static final SUNK = 3;
-  static final PENDING = 4;
-
-  Constants() {}
-}