public Snake(int rowPosition, int columnPosition)
{
HeadPosition = new ArenaPosition(rowPosition, columnPosition);
HeadDirection = SnakeHeadDirerctionEnum.InPlace;
Body = new List <ArenaPosition>(); //object reference null hiba ellen!
Lenght = 6;
}
private void ItsTimeToDisplay(object sender, EventArgs e)
{
if (!isGameStarted)
{
return;
}
//megjegyezzük a fej pozicióját
CurrentPosition = new ArenaPosition(Snake.HeadPosition.RowPosition, Snake.HeadPosition.ColumnPosition);
//a fej új poziciója:
switch (Snake.HeadDirection)
{
case SnakeHeadDirerctionEnum.Up:
Snake.HeadPosition.RowPosition = Snake.HeadPosition.RowPosition - 1;
break;
case SnakeHeadDirerctionEnum.Down:
Snake.HeadPosition.RowPosition = Snake.HeadPosition.RowPosition + 1;
break;
case SnakeHeadDirerctionEnum.Left:
Snake.HeadPosition.ColumnPosition = Snake.HeadPosition.ColumnPosition - 1;
break;
case SnakeHeadDirerctionEnum.Right:
Snake.HeadPosition.ColumnPosition = Snake.HeadPosition.ColumnPosition + 1;
break;
case SnakeHeadDirerctionEnum.InPlace:
break;
}
//falnak ütközés detektálása:
if (Snake.HeadPosition.RowPosition < 0 || Snake.HeadPosition.RowPosition > RowCount - 1 ||
Snake.HeadPosition.ColumnPosition < 0 || Snake.HeadPosition.ColumnPosition > ColumnCount - 1)
{
EndOfGame();
return;
}
//testtel ütközés detektálása:
if (Snake.Body.Any(x => x.RowPosition == Snake.HeadPosition.RowPosition &&
x.ColumnPosition == Snake.HeadPosition.ColumnPosition))
{
EndOfGame();
Console.WriteLine("saját farkába harapott");
}
//testtel ütközés 2. (levél PG-nek)
//if (Snake.Body.Any(x => x == Snake.HeadPosition))
//{
// EndOfGame();
// Console.WriteLine("saj fark har");
//}
ShowSnakeHead(Snake.HeadPosition.RowPosition, Snake.HeadPosition.ColumnPosition, IconEnum.Head);
// a régi fejből test lett, belerakjuk a Body listába:
Snake.Body.Add(new ArenaPosition(CurrentPosition.RowPosition, CurrentPosition.ColumnPosition));
// töröljük a régi fejet, helytte test lesz:
ShowSnakeHead(CurrentPosition.RowPosition, CurrentPosition.ColumnPosition, IconEnum.Body);
if (Snake.Body.Count > Snake.Lenght)
{
var end = Snake.Body[0];
ShowSnakeHead(end.RowPosition, end.ColumnPosition, IconEnum.Empty);
Snake.Body.RemoveAt(0);
}
//van-e evés esemény
//ütközött-e a fej elemózsiával
var food = Foods.FoodPositions[0];
if (Snake.HeadPosition.RowPosition == food.RowPosition && Snake.HeadPosition.ColumnPosition == food.ColumnPosition)
{
Eating(food.RowPosition, food.ColumnPosition);
}
}