void EndGame()
{
startGame = false;
snakeDirection = (int)SNAKE_DIRECTION.STOP;
MessageBox.Show("Game over!");
snakeBackgroundWorker.CancelAsync();
startGameButton.Enabled = true;
this.InvokeIfNeeded(() => startGameButton.Show());
}
void StartGameButton_Click(object sender, EventArgs e)
{
startGameButton.Hide();
snakePanel.Show();
resLabel.Text = "0";
resLabel.Show();
score = 0;
scoreLabel.Show();
pauseGameButton.Show();
endGameButton.Show();
startSpeed = 400;
snakeDirection = (int)SNAKE_DIRECTION.STOP;
snakePanelCanvas = snakePanel.CreateGraphics();
snakePanel.Invalidate();
Point startBlock = CreateStartSnakeBlocks();
Rectangle snake;
snakeBlocks = new List <Point>();
for (int i = 0; i < initialSnakeSize; i++)
{
startBlock.X = startBlock.X - BLOCK_SIZE;
snakeBlocks.Add(startBlock);//храним координаты блоков
snake = new Rectangle(startBlock, new Size(BLOCK_SIZE, BLOCK_SIZE));
if (i == 0)
{
snakePanelCanvas.FillEllipse(Brushes.DarkCyan, snake);
snakePanelCanvas.DrawEllipse(Pens.DarkCyan, snake);
}
else
{
snakePanelCanvas.DrawEllipse(Pens.DarkCyan, snake);
}
}
CreateFood();
startGame = true;
snakePanel.Focus();
snakeBackgroundWorker.RunWorkerAsync();
}
void SnakePanel_PreviewKeyDown(object sender, PreviewKeyDownEventArgs e)
{
switch (e.KeyCode)
{
case Keys.A:
case Keys.Left:
{
e.IsInputKey = true;
if (snakeDirection == SNAKE_DIRECTION.RIGHT ||
snakeDirection == SNAKE_DIRECTION.STOP)
{
break;
}
snakeDirection = SNAKE_DIRECTION.LEFT;
break;
}
case Keys.D:
case Keys.Right:
{
e.IsInputKey = true;
if (snakeDirection == SNAKE_DIRECTION.LEFT)
{
break;
}
snakeDirection = SNAKE_DIRECTION.RIGHT;
break;
}
case Keys.S:
case Keys.Down:
{
e.IsInputKey = true;
if (snakeDirection == SNAKE_DIRECTION.UP)
{
break;
}
snakeDirection = SNAKE_DIRECTION.DOWN;
break;
}
case Keys.W:
case Keys.Up:
{
e.IsInputKey = true;
if (snakeDirection == SNAKE_DIRECTION.DOWN)
{
break;
}
snakeDirection = SNAKE_DIRECTION.UP;
break;
}
default: {
break;
}
}
}
