What a mess... but now with some actual snake logic!
Self-collision is in Food is in (currently will cause lag with very large snakes due to re-rolling rng if position occupied by snake segment) Wall pass-through is in as well, right wall is a bit iffy because of the scroll bar and the auto-advance of the cursor on write
This commit is contained in:
morpha
parent
1ae55c0484
commit
f948626cd0
@ -1,4 +1,6 @@
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namespace ConsoleSnake
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using System.ComponentModel.Design;
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namespace ConsoleSnake
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{
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internal class Program
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{
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@ -10,24 +12,166 @@
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Right
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}
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private struct PlayArea
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{
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public PlayArea(Int32 left, Int32 top, Int32 right, Int32 bottom)
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{
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LeftEdge = left;
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TopEdge = top;
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RightEdge = right;
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BottomEdge = bottom;
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}
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public Int32 LeftEdge { get; set; }
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public Int32 TopEdge { get; set; }
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public Int32 RightEdge { get; set; }
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public Int32 BottomEdge { get; set; }
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}
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private struct Position2D
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{
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public Position2D(Int32 x, Int32 y) { X = x; Y = y; }
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public Int32 X { get; set; }
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public Int32 Y { get; set; }
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}
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private static PlayArea _playArea;
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private static bool _running = true;
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private static bool _growing = false;
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private static Direction _direction = Direction.Up;
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private static List<Position2D> _snakeSegments = new List<Position2D>();
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private static Position2D _food = new Position2D(-1,-1);
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private static Random rng = new Random();
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static void Main(string[] args)
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{
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Console.SetCursorPosition(Console.WindowWidth/2, Console.WindowHeight/2);
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Console.ReadKey();
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Console.WindowWidth -= Console.WindowWidth % 2;
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Console.WindowHeight -= Console.WindowHeight % 2;
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Console.SetBufferSize(Console.WindowWidth, Console.WindowHeight);
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DrawPlayArea();
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//Console.WindowWidth -= 1;
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Console.ReadKey(true);
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Reset();
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while (_running)
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{
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HandleInput();
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ProcessMovement();
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DrawSnake();
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Thread.Sleep(100);
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AllSnakeThings();
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Thread.Sleep(50);
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}
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}
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private static void DrawSnake()
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private static void DrawPlayArea()
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{
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Console.BackgroundColor = ConsoleColor.DarkGray;
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for(Int32 top = 0; top < Console.WindowHeight; ++top)
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{
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Console.CursorTop = top;
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Console.CursorLeft = 0;
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if (top == 0 || top == Console.WindowHeight - 1)
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for (Int32 row = 0; row < Console.WindowWidth; ++row)
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Console.Write(' ');
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else
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{
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Console.Write(' ');
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Console.CursorLeft = Console.WindowWidth-1;
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Console.Write(' ');
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}
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}
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/*for (Int32 top = _playArea.Top; top < _playArea.Height; ++top)
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{
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}
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for (Int32 left = _playArea.Left; left < _playArea.Width; ++left)
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{
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Console.SetCursorPosition(left, top);
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Console.Write(' ');
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}*/
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Console.BackgroundColor = ConsoleColor.Black;
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}
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private static void Reset()
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{
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_playArea = new PlayArea(1, 1, Console.WindowWidth - 2, Console.WindowHeight - 2);
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_running = true;
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_growing = false;
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_direction = Direction.Up;
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_snakeSegments.Clear();
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// Set up anew
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_snakeSegments.Add(new Position2D(Console.BufferWidth / 2, Console.BufferHeight / 2));
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SpawnFood();
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MoveCursor(_snakeSegments.Last());
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}
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private static void SpawnFood()
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{
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Position2D oldCursorPos = new Position2D(Console.CursorLeft, Console.CursorTop);
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do
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{
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_food = new Position2D(rng.Next(3, Console.WindowWidth - 10), rng.Next(3, Console.WindowHeight - 3));
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} while (_snakeSegments.Contains(_food));
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MoveCursor(_food);
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Console.ForegroundColor = ConsoleColor.Red;
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Console.Write('@');
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Console.ForegroundColor = ConsoleColor.Green;
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MoveCursor(oldCursorPos);
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}
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private static void MoveCursor(Position2D pos) => MoveCursor(pos.X, pos.Y);
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private static void MoveCursor(Int32 left, Int32 top)
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{
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Console.SetCursorPosition(left, top);
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Console.CursorVisible = false;
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}
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private static void GrowSnake() => GrowSnake(Console.CursorLeft, Console.CursorTop);
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private static void GrowSnake(Int32 x, Int32 y)
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{
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_snakeSegments.Add(new Position2D(x, y));
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}
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private static void DeleteAt(Position2D pos) => DeleteAt(pos.X, pos.Y);
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private static void DeleteAt(Int32 x, Int32 y)
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{
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Int32 curX = Console.CursorLeft;
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Int32 curY = Console.CursorTop;
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MoveCursor(x, y);
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Console.Write(' ');
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MoveCursor(curX, curY);
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}
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private static bool Collision(Position2D pos1, Position2D pos2)
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{
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return (pos1.X == pos2.X && pos1.Y == pos2.Y);
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}
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private static void AllSnakeThings()
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{
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if (!_growing)
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{
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DeleteAt(_snakeSegments.First());
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_snakeSegments.Remove(_snakeSegments.First());
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}
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else
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_growing = false;
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ProcessMovement();
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if (_snakeSegments.Contains(new Position2D(Console.CursorLeft, Console.CursorTop)))
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{
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_running = false;
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return;
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}
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GrowSnake();
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Console.Write('#');
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--Console.CursorLeft;
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if(_food.X == Console.CursorLeft && _food.Y == Console.CursorTop)
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{
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_growing = true;
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SpawnFood();
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}
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}
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private static void ProcessMovement()
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@ -35,17 +179,29 @@
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switch (_direction)
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{
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case Direction.Up:
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if (Console.CursorTop - 1 < _playArea.TopEdge)
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Console.CursorTop = _playArea.BottomEdge;
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else
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--Console.CursorTop;
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break;
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case Direction.Down:
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if (Console.CursorTop + 1 > _playArea.BottomEdge)
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Console.CursorTop = _playArea.TopEdge;
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else
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++Console.CursorTop;
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break;
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case Direction.Right:
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++Console.CursorLeft;
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break;
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case Direction.Left:
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if (Console.CursorLeft - 1 < _playArea.LeftEdge)
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Console.CursorLeft = _playArea.RightEdge;
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else
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--Console.CursorLeft;
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break;
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case Direction.Right:
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if (Console.CursorLeft + 1 > _playArea.RightEdge)
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Console.CursorLeft = _playArea.LeftEdge;
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else
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++Console.CursorLeft;
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break;
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}
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}
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@ -57,23 +213,30 @@
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{
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case ConsoleKey.UpArrow:
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case ConsoleKey.W:
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if(_direction != Direction.Down)
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_direction = Direction.Up;
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break;
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case ConsoleKey.DownArrow:
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case ConsoleKey.S:
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if (_direction != Direction.Up)
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_direction = Direction.Down;
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break;
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case ConsoleKey.LeftArrow:
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case ConsoleKey.A:
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if (_direction != Direction.Right)
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_direction = Direction.Left;
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break;
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case ConsoleKey.RightArrow:
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case ConsoleKey.D:
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if (_direction != Direction.Left)
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_direction = Direction.Right;
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break;
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case ConsoleKey.Escape:
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_running = false;
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break;
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case ConsoleKey.G:
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_growing = !_growing;
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break;
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}
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}
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}
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