public Boolean IsAppleEaten(SnakeChain snakeChain, Apple apple)
{
return(snakeChain.GetCoords().SequenceEqual(apple.GetCoords()));
}
public void Start()
{
snake.AddFirst(new SnakeChain(graphics));
Apple apple = new Apple();
apple.Update(this);
// Game loop.
while (true)
{
// Snake Loop
int i = 0;
foreach (var snakeChain in snake)
{
if (i == 0)
{
snakeChain.SetFirst();
}
snakeChain.Update(this, snake);
i++;
}
// clearing screen before painting new frame
graphics.FillRectangle(0xFF000000, 0, 0, 655, 656);
graphics.DrawRectangle(0xFFA9A9A9, 10, 10, 640, 640, 20); // FFA9A9A9-dark grey
// Thus, we have a matrix 34x34 for a game.
// But as we have a frame which has the same h/w as a snake - this reduces the playable zone to 32x32.
int[] snakeHeadCoords = snake.First().GetCoords(); /// !!!!!!!!!!!!!!!!!!!!!!!!!!
if (
(snakeHeadCoords[0] == 0 || snakeHeadCoords[0] >= 640) ||
(snakeHeadCoords[1] == 0 || snakeHeadCoords[1] >= 640)
)
{
GameOver("out-of-frame");
return;
}
// Let's paint the apple
apple.Render(graphics);
// Have we eaten an apple?
if (IsAppleEaten(snake.First(), apple))
{
applesEaten++;
Console.WriteLine(" Apples eaten: " + applesEaten);
SaveNextSnakeChain();
// Regenerate apple coords.
apple.Update(this);
}
foreach (var snakeChain in snake)
{
snakeChain.Render(graphics);
}
// double buffering technique is used
graphics.FlipPages();
Thread.Sleep(100);
}
}