private void TickExpand()
{
if (PendingExpand)
{
PendingExpand = false;
if (Snake.Head.NextComponent == null)
{
var tp = Snake.Head.Direction.GetTransformPoint();
var point = Snake.Head.Point.Add(new Point(-tp.X, -tp.Y));
var body = new SnakeBody();
Snake.Head.NextComponent = body;
Grid.Set(point, body);
}
}
else
{
var components = Snake.ToArray();
var i = components.Length - 2;
if (i >= 0)
{
components[i].NextComponent = null;
Grid.Set(components[i + 1].Point, null);
}
}
}
private bool TickMove()
{
var nextPoint = Snake.GetNextPoint();
var obj = Grid.Get(nextPoint);
if (Grid.IsOutOfGrid(nextPoint) || obj is SnakeComponent)
{
return(false);
}
if (obj is Food)
{
PendingExpand = true;
}
var currentPoint = Snake.Head.Point;
var previousObj = Snake.Head.NextComponent;
Grid.Set(nextPoint, Snake.Head);
if (Snake.Head.NextComponent == null)
{
Grid.Set(currentPoint, null);
return(true);
}
var newBody = new SnakeBody {
NextComponent = previousObj
};
Grid.Set(currentPoint, newBody);
Snake.Head.NextComponent = newBody;
return(true);
}
public Form1()
{
InitializeComponent();
DoubleBuffered = true;
graphics = pictureBox1.CreateGraphics();
snake = new SnakeBody(30, 30);
food = new Food();
}
public void RemoveSnakeBody()
{
for (int i = 0; i < SnakeBody.Count(); i++)
{
Console.SetCursorPosition(SnakeBodyY[i], SnakeBodyX[i]);
Console.Write(" ");
}
}
public void TrainingBorder()
{
if (snake.GetX() < 0 || snake.GetY() < 0 || snake.GetX() > pictureBox1.Width || snake.GetY() > pictureBox1.Height)
{
snake = new SnakeBody(30, 30);
food = new Food();
}
}
private static void Initialize()
{
Console.Clear();
_area.Print();
_area.Score = 0;
_area.PrintScore();
_snake = new SnakeBody(15, 12, 10);
_input.Clear();
_food.SpawnNew(_area, _snake);
_stopwatch.Restart();
}
public bool DetectBodyCollision()
{
for (int i = 0; i < SnakeBody.Count(); i++)
{
if (XPosition == SnakeBodyX[i] && YPosition == SnakeBodyY[i])
{
return(false);
}
}
return(true);
}
/// <summary>
/// 根据指定的参数清除一个"点"
/// </summary>
/// <param name="bdy">蛇身点</param>
private void _SnakeClearPoint(SnakeBody bdy)
{
int x = 0, y = 0;
_ToRealPoint(bdy.x, bdy.y, out x, out y);
Rectangle rect = new Rectangle(x, y, _BodySize, _BodySize);
SolidBrush brush = new SolidBrush(_Windows.BackColor);//用背景颜色覆盖当前点
if (bdy.exist)
{
//不需要考虑形状，全部用正方形填充
_Graphics.FillRectangle(brush, rect);
}
}
/// <summary>
/// 贪吃蛇游戏初始化
/// </summary>
public void SnakeGameRenew()
{
SnakeBody _body;
_SnakeList.Clear();//清空所有数据
//初始化游戏运行数据
_Direction = SnakeDirection.Right;
_Life = SnakeLife.Live;
_Score = 0;
//初始化蛇头
_body = new SnakeBody(0, 0, _SColor, true, SnakeProperty.Head);
_SnakeList.Add(_body);
//创建初始蛇身
int initLength = 3;
if (initLength > 1)
{
int dx = 0, dy = 0;
int x = _SnakeList[0].x, y = _SnakeList[0].y;
_GetVariation(_Direction, out dy, out dy);
for (int i = 1; i < initLength; i++)
{
x -= (dx * _BodySize);
y -= (dy * _BodySize);
_body = new SnakeBody(x, y, _SColor, true, SnakeProperty.Body);
_SnakeList.Add(_body);
}
}
//初始化食物
int fx = 0, fy = 0;
_Food.color = _SColor;
_Food.exist = true;
_Food.proty = SnakeProperty.Food;
_SnakeGetRandomXY(out fx, out fy);
_Food.x = fx;
_Food.y = fy;
//重绘游戏画面
_SnakeClearWindow();
_SnakeReDrawGame();
}
public void DrawSnake()
{
Console.SetCursorPosition(GetPreviousYPosition(), GetPreviousXPosition());
Console.Write(" ");
Console.SetCursorPosition(GetYPosition(), GetXPosition());
Console.Write(GetSnakeHead());
for (int i = 0; i < PreviousBodyXPositions.Count(); i++)
{
Console.SetCursorPosition(PreviousBodyYPositions[i], PreviousBodyXPositions[i]);
Console.Write(" ");
}
for (int i = 0; i < SnakeBody.Count(); i++)
{
Console.SetCursorPosition(SnakeBodyY[i], SnakeBodyX[i]);
Console.Write(SnakeBody[i]);
}
}
private void aRestartButton_Click(object sender, EventArgs e)
{
SoundPlayer replay = new SoundPlayer(Properties.Resources.Replay);
replay.Play();
CheckForRecord();
for (int i = snake.tail.Count - 1; i > 0; i--)
{
Controls.Remove(snake.tail[i]);
}
InitializeSnake();
snake = new SnakeBody(aScoreLabel, aRecordLabel, this, aSnakeHead, aSegment1, aSegment2, aSegment3, aSegment4);
food = new Food(this, aSuperFood, aFood, snake);
food.picture.Visible = false;
aTimer.Enabled = false;
timeLeft = 10;
timeTick = 0;
}
public aForm()
{
_timeLeft = 30;
InitializeComponent();
snake = new SnakeBody(aScoreLabel, aRecordLabel, this, aSnakeHead, aSegment1, aSegment2, aSegment3, aSegment4);
food = new Food(this, aSuperFood, aFood, snake);
bordersEnabled = true;
timeModeEnabled = false;
timeLeft = 10;
if (!File.Exists("score.ini"))
{
using (StreamWriter writer = new StreamWriter("score.ini"))
{
writer.Write("0\n0\n0\n0");
writer.Close();
}
}
CheckForRecord();
}
public void Draw(Point currentPosition)
{
Ellipse e = new Ellipse();
e.Fill = Color;
e.Width = Size;
e.Height = Size;
//e.Stroke = Brushes.Black;
Canvas.SetTop(e, currentPosition.Y);
Canvas.SetLeft(e, currentPosition.X);
int count = gameCanvas.Children.Count;
this.gameCanvas.Children.Add(e);
this.SnakeBody.Add(currentPosition);
if (count > Length)
{
gameCanvas.Children.RemoveAt(count - Length + foodAmount - 1);
SnakeBody.RemoveAt(count - Length);
}
}
/// <summary>
/// IComparable的接口实现
/// </summary>
/// <param name="obj"></param>
/// <returns></returns>
public int CompareTo(object obj)
{
if (obj is SnakeBody)
{
SnakeBody snakeBody = obj as SnakeBody;
if (SnakeBodyScore < snakeBody.SnakeBodyScore)
{
return(1);
}
else if (SnakeBodyScore > snakeBody.SnakeBodyScore)
{
return(-1);
}
else
{
return(0);
}
}
else
{
throw new ArgumentException("Object to compare to is not a SnakeBody object");
}
}
private void MakeSuperFood(PictureBox super, SnakeBody snake)
{
bool remake;
do
{
remake = false;
x = rand.Next(26);
y = rand.Next(26);
super.Location = new Point(x * 20 + 10, y * 20 + 10);
form.Controls.Add(super);
super.BringToFront();
super.Visible = true;
superFoodLocator = new Rectangle(super.Location.X + super.Width / 2, super.Location.Y + super.Height / 2, 2, 2);
for (int i = 0; i < snake.tail.Count - 1; i++)
{
if (snake.tail[i].Bounds.IntersectsWith(superFoodLocator))
{
remake = true;
break;
}
}
} while (remake);
}
public void RemoveBody(SnakeBody body)
{
if (body != null && bodies != null)
bodies.Remove(body);
}
public SnakeObj()
{
Body = new SnakeBody();
}
/// <summary>
/// 蛇身前进一步
/// </summary>
/// <param name="dir">前进方向</param>
/// <returns>蛇生命值</returns>
private SnakeLife SnakeMoveStep(SnakeDirection dir)
{
SnakeBody tail = new SnakeBody(0, 0, _SColor, true, SnakeProperty.Body);
tail.x = _SnakeList[_SnakeList.Count - 1].x;//保存蛇尾坐标
tail.y = _SnakeList[_SnakeList.Count - 1].y;
SnakeBody body_t = new SnakeBody(0, 0, _SColor, true, SnakeProperty.Body);
for (int i = (_SnakeList.Count - 1); i > 0; i--)
{//更新蛇身坐标
body_t.x = _SnakeList[i - 1].x;
body_t.y = _SnakeList[i - 1].y;
_SnakeList[i] = body_t;
}
int dx = 0, dy = 0;
_GetVariation(dir, out dx, out dy); //根据移动方向获取移动xy轴上的增量
SnakeBody body_h = new SnakeBody(0, 0, _SColor, true, SnakeProperty.Head); //更新蛇头坐标
body_h.x = _SnakeList[0].x + dx;
body_h.y = _SnakeList[0].y + dy;
//穿墙处理
int _maxX = _Windows.Size.Width / _BodySize;
int _maxY = _Windows.Size.Height / _BodySize;
if (_CrossWall == false)
{
if ((body_h.x >= _maxX) || (body_h.x < 0) ||
(body_h.y >= _maxY) || (body_h.y < 0))
{
_Life = SnakeLife.Die;
}
}
if (body_h.x >= _maxX)
{
body_h.x = 0;
}
if (body_h.x < 0)
{
body_h.x = _maxX - 1;
}
if (body_h.y >= _maxY)
{
body_h.y = 0;
}
if (body_h.y < 0)
{
body_h.y = _maxY - 1;
}
_SnakeList[0] = body_h;//更新蛇头坐标
//判断是否吃到食物或咬到自己（在未更新坐标之前预判）
int foodx = 0, foody = 0;
SnakeProperty p = _SnakeGetPointProperty(_SnakeList[0].x, _SnakeList[0].y);
switch (p)
{
case SnakeProperty.Food:
Console.WriteLine("SnakeProperty: " + p.ToString() + " SnakeLife: " + _Life.ToString());
//吃到食物后产生一个食物，蛇身长度增加
if (_SnakeGetRandomXY(out foodx, out foody)) //创建食物
{
_Food.x = foodx;
_Food.y = foody;
_SnakeList.Add(tail); //增加蛇身长度
_Score++; //得分增加
_Life = SnakeLife.Live;
}
else
{
_Life = SnakeLife.Win;
//return _Life;
}
break;
case SnakeProperty.Body:
case SnakeProperty.Wall:
Console.WriteLine("SnakeProperty: " + p.ToString() + " SnakeLife: " + _Life.ToString());
_Life = SnakeLife.Die; //死亡
//return _Life;
break;
case SnakeProperty.Head:
case SnakeProperty.Null:
default:
_Life = SnakeLife.Live;
break;
}
_SnakeClearPoint(tail); //清除蛇尾
_SnakeReDrawGame(); //更新显示蛇身
return(_Life);
}
public override void Update(GameTime gameTime)
{
if (Keyboard.GetState().IsKeyDown(Keys.Left) && snakeHeadActive.entityType != 7 && snakeHeadActive.textureImage != Game.Content.Load<Texture2D>(@"images\snakehead-right"))
{
snakeHeadActive = snakeHeadLeft;
}
if (Keyboard.GetState().IsKeyDown(Keys.Right) && snakeHeadActive.entityType != 6 && snakeHeadActive.textureImage != Game.Content.Load<Texture2D>(@"images\snakehead-left"))
{
snakeHeadActive = snakeHeadRight;
}
if (Keyboard.GetState().IsKeyDown(Keys.Up) && snakeHeadActive.entityType != 5 && snakeHeadActive.textureImage != Game.Content.Load<Texture2D>(@"images\snakehead-down"))
{
snakeHeadActive = snakeHeadUp;
}
if (Keyboard.GetState().IsKeyDown(Keys.Down) && snakeHeadActive.entityType != 4 && snakeHeadActive.textureImage != Game.Content.Load<Texture2D>(@"images\snakehead-up"))
{
snakeHeadActive = snakeHeadDown;
}
snakeHeadActive.Update(gameTime, Game.Window.ClientBounds);
// Update Snake Body
for (int i = 0; i < snakeLength - 1; i++)
{
snakeBody[i].Update(gameTime, Game.Window.ClientBounds);
snakeBody[i].position = new Vector2(Game1.spriteManager.snakeArray[i + 1].X * 16.0f, Game1.spriteManager.snakeArray[i + 1].Y * 16.0f);
}
// Copy the present location of the snake into a temporary location for reading
for (int i = 0; i < snakeLength; i++)
{
snakeCopyCurrentArray[i] = snakeArray[i];
}
// Overwrite the current snake location with the new snake location
for (int i = 0; i < snakeLength-1; i++)
{
snakeArray[i + 1] = snakeCopyCurrentArray[i];
}
//------
//The commented code below is a step-by-step example of how this process
//updates the snake, using only the initial snake pieces.
//snakeCopyCurrentArray[0] = snakeArray[0];
//snakeCopyCurrentArray[1] = snakeArray[1];
//snakeCopyCurrentArray[2] = snakeArray[2];
//snakeArray[1] = snakeCopyCurrentArray[0];
//snakeArray[2] = snakeCopyCurrentArray[1];
//------
// Update Fruit
currentFruit.Update(gameTime, Game.Window.ClientBounds);
// Check for fruit collision
// Update Score, Update Fruit Location
if (new Vector2((snakeHeadActive.position.X) / 16,(snakeHeadActive.position.Y) / 16) == (new Vector2((int)(currentFruit.position.X) / 16, (int)(currentFruit.position.Y) / 16)))
{
Game1.audioEating.Play();
System.Console.WriteLine("Fruit collected!");
//Update Score
switch (currentFruit.entityType)
{
case(0):
score += 100;
break;
case(1):
score += 250;
break;
case(2):
score += 500;
break;
}
// Add Snake Bit
snakeLength++;
snakeArray[snakeLength - 1] = snakeArray[snakeLength - 2];
snakeBody[snakeLength - 2] = new SnakeBody(Game.Content.Load<Texture2D>(@"images\snakebody"),
new Vector2(snakeArray[snakeLength - 1].X * 16, snakeArray[snakeLength - 1].Y * 16), new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 8);
// Replace fruit location with snake's head
if(snakeHeadActive.textureImage == Game.Content.Load<Texture2D>(@"images\snakehead-right")){
snakeHeadActive = new SnakeHead(Game.Content.Load<Texture2D>(@"images\snakehead-right"),
new Vector2(snakeHeadPosition.X, snakeHeadPosition.Y),
new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 7);
}
if(snakeHeadActive.textureImage == Game.Content.Load<Texture2D>(@"images\snakehead-left")){
snakeHeadActive = new SnakeHead(Game.Content.Load<Texture2D>(@"images\snakehead-left"),
new Vector2(snakeHeadPosition.X, snakeHeadPosition.Y),
new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 6);
}
if(snakeHeadActive.textureImage == Game.Content.Load<Texture2D>(@"images\snakehead-up")){
snakeHeadActive = new SnakeHead(Game.Content.Load<Texture2D>(@"images\snakehead-up"),
new Vector2(snakeHeadPosition.X, snakeHeadPosition.Y),
new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 4);
}
if(snakeHeadActive.textureImage == Game.Content.Load<Texture2D>(@"images\snakehead-down")){
snakeHeadActive = new SnakeHead(Game.Content.Load<Texture2D>(@"images\snakehead-down"),
new Vector2(snakeHeadPosition.X, snakeHeadPosition.Y),
new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 5);
}
// Replace fruit location with snake's current head
snakeArray[0] = (new Vector2((int)(currentFruit.position.X) / 16, (int)(currentFruit.position.Y) / 16));
// Regenerate Fruit
chooseFruit();
}
base.Update(gameTime);
}
// Load snake head assets
public void snakeAssets()
{
snakeHeadUp = new SnakeHead(Game.Content.Load<Texture2D>(@"images\snakehead-up"),
snakeHeadPosition, new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 4);
snakeHeadDown = new SnakeHead(Game.Content.Load<Texture2D>(@"images\snakehead-down"),
snakeHeadPosition, new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 5);
snakeHeadLeft = new SnakeHead(Game.Content.Load<Texture2D>(@"images\snakehead-left"),
snakeHeadPosition, new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 6);
snakeHeadRight = new SnakeHead(Game.Content.Load<Texture2D>(@"images\snakehead-right"),
snakeHeadPosition, new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 7);
initialSnakeBody = new SnakeBody(Game.Content.Load<Texture2D>(@"images\snakebody"),
new Vector2(0,16), new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 8);
initialSnakeTail = new SnakeBody(Game.Content.Load<Texture2D>(@"images\snakebody"),
new Vector2(0,0), new Point(16, 16), new Vector2(4f, 4f), new Vector2(1, 1), Color.CornflowerBlue, new Vector2(0, 0), 8);
}
public void AddBody(SnakeBody body)
{
if (body != null && bodies != null)
bodies.Add(body);
}
public void AddSnakeBody()
{
SnakeBody.Add("*");
}