private void Movement()
{
while (snakeElements.Count >= snakeLength)
{
GameBoard.Children.Remove(snakeElements[0].UiElement);
snakeElements.RemoveAt(0);
}
foreach (SnakeElement snakeElement in snakeElements)
{
(snakeElement.UiElement as System.Windows.Shapes.Rectangle).Fill = snakeBody;
snakeElement.IsHead = false;
}
SnakeElement head = snakeElements[snakeElements.Count - 1];
double nextXPosition = head.Position.X;
double nextYPosition = head.Position.Y;
switch (currentSnakeDirection)
{
case CurrentSnakeDirection.Up:
nextYPosition -= snakeSquareSize;
break;
case CurrentSnakeDirection.Down:
nextYPosition += snakeSquareSize;
break;
case CurrentSnakeDirection.Right:
nextXPosition += snakeSquareSize;
break;
case CurrentSnakeDirection.Left:
nextXPosition -= snakeSquareSize;
break;
}
snakeElements.Add(new SnakeElement()
{
Position = new System.Windows.Point(nextXPosition, nextYPosition),
IsHead = true
});
SpawnSnake();
CheckCollision();
}
private void CheckCollision()
{
SnakeElement head = snakeElements[snakeElements.Count - 1];
if ((head.Position.X == System.Windows.Controls.Canvas.GetLeft(food)) && (head.Position.Y == System.Windows.Controls.Canvas.GetTop(food)))
{
Eat();
GetRandomImage();
return;
}
if ((head.Position.Y < 0) || (head.Position.Y >= GameBoard.ActualHeight) || (head.Position.X < 0) || (head.Position.X >= (GameBoard.Width - ScoreBoard.Width) - 14))
{
EndGame();
}
foreach (SnakeElement snakeBodyElement in snakeElements.Take(snakeElements.Count - 1))
{
if ((head.Position.X == snakeBodyElement.Position.X) && (head.Position.Y == snakeBodyElement.Position.Y))
{
EndGame();
}
}
}
