private void timerSnakeGame_Tick(object sender, EventArgs e)
{
MovementResult movementResult = this.snake.Move(
this.pictureBoxSnakeGame.Width,
this.pictureBoxSnakeGame.Height,
this.apple);
if (movementResult == MovementResult.Wall ||
movementResult == MovementResult.SelfBite)
{
timerSnakeGame.Stop();
// Game is over
MessageBox.Show(string.Format("Game over!!! Your points: {0}", snake.Length));
this.Close();
}
if (movementResult == MovementResult.OnApple)
{
do
{
this.apple = this.appleGenerator.CreateApple();
}while (this.snake.IsOn(apple));
}
this.Invalidate(true);
}
private void timerSnakeGame_Tick(object sender, EventArgs e)
{
MovementResult movementResult = this.snake.Move(
this.pictureBoxSnakeGame.Width,
this.pictureBoxSnakeGame.Height,
this.apple);
if (movementResult == MovementResult.Wall ||
movementResult == MovementResult.SelfBite)
{
timerSnakeGame.Stop();
// Game is over
MessageBox.Show(string.Format("Game over!!! Your points: {0}", snake.Length));
this.Close();
}
if (movementResult == MovementResult.OnApple)
{
do
{
this.apple = this.appleGenerator.CreateApple();
}
while (this.snake.IsOn(apple));
}
this.Invalidate(true);
}
public UIApple CreateApple()
{
UIApple apple = new UIApple(
randomGenerator.Next(1, this.fieldWidth / this.appleWidth) * this.appleWidth,
randomGenerator.Next(1, this.fieldHeight / this.appleHeight) * this.appleHeight,
this.appleWidth,
this.appleHeight,
Pens.Red);
return(apple);
}
public FormSnakeGame()
{
InitializeComponent();
this.snake = new UISnake(snakeLength, segmentSize, segmentSize, Direction.Right, Pens.Green);
this.appleGenerator = new UIAppleGenerator(
this.pictureBoxSnakeGame.Width,
this.pictureBoxSnakeGame.Height,
this.appleSize,
this.appleSize);
do
{
this.apple = this.appleGenerator.CreateApple();
}while (this.snake.IsOn(apple));
this.timerSnakeGame.Start();
}
public FormSnakeGame()
{
InitializeComponent();
this.snake = new UISnake(snakeLength, segmentSize, segmentSize, Direction.Right, Pens.Green);
this.appleGenerator = new UIAppleGenerator(
this.pictureBoxSnakeGame.Width,
this.pictureBoxSnakeGame.Height,
this.appleSize,
this.appleSize);
do
{
this.apple = this.appleGenerator.CreateApple();
}
while (this.snake.IsOn(apple));
this.timerSnakeGame.Start();
}
public MovementResult Move(int fieldWidth, int fieldHeight, UIApple apple)
{
UISegment oldHead = this.body.Last();
UISegment newHead = new UISegment(
oldHead.X + this.deltas[this.direction].X * oldHead.Width,
oldHead.Y + this.deltas[this.direction].Y * oldHead.Height,
oldHead.Width,
oldHead.Height,
oldHead.Pen);
if (newHead.X >= fieldWidth || newHead.X < 0 ||
newHead.Y >= fieldHeight || newHead.Y < 0)
{
return MovementResult.Wall;
}
if (this.IsOn(newHead))
{
return MovementResult.SelfBite;
}
// the following two operations create the effect of motion:
// 1. add the new head in front of the old one
this.body.Enqueue(newHead);
// if the snake is on the apple
if (this.IsOn(apple))
{
// increase the length by 1, i.e. don't remove the last segment
this.removedSegment = null;
return MovementResult.OnApple;
}
else
{
// 2. remove the last segment
this.removedSegment = this.body.Dequeue();
}
return MovementResult.OK;
}
public MovementResult Move(int fieldWidth, int fieldHeight, UIApple apple)
{
UISegment oldHead = this.body.Last();
UISegment newHead = new UISegment(
oldHead.X + this.deltas[this.direction].X * oldHead.Width,
oldHead.Y + this.deltas[this.direction].Y * oldHead.Height,
oldHead.Width,
oldHead.Height,
oldHead.Pen);
if (newHead.X >= fieldWidth || newHead.X < 0 ||
newHead.Y >= fieldHeight || newHead.Y < 0)
{
return(MovementResult.Wall);
}
if (this.IsOn(newHead))
{
return(MovementResult.SelfBite);
}
// the following two operations create the effect of motion:
// 1. add the new head in front of the old one
this.body.Enqueue(newHead);
// if the snake is on the apple
if (this.IsOn(apple))
{
// increase the length by 1, i.e. don't remove the last segment
this.removedSegment = null;
return(MovementResult.OnApple);
}
else
{
// 2. remove the last segment
this.removedSegment = this.body.Dequeue();
}
return(MovementResult.OK);
}
