// Use this for initialization
void Start()
{
Head = new SnakeElement();
Head.Element = HeadElement;
Head.Direction = Direction;
Head.Speed = Speed;
Head.TargetPoint = Head.Element.transform.localPosition+Direction*Speed*TimeBetweenChangeDirection;
Body = new List<SnakeElement>();
foreach(var t in Elements)
{
var element = new SnakeElement
{
Direction = Direction,
Element = t,
Speed = Speed
};
Body.Add(element);
}
Body[0].TargetPoint =Head.Element.transform.localPosition;
for(int i=1;i<Body.Count;i++)
{
Body[i].TargetPoint = Body[i-1].Element.transform.position;
}
LastUpdateTime = Time.time;
HeadDirection = Direction;
}
private void CheckColisionWitchSelf()
{
SnakeElement snakeHead = GetSnakeHead();
bool hasCollision = false;
if (snakeHead != null)
{
foreach (var snakeElement in snakeElements)
{
if (!snakeElement.IsHead)
{
if (snakeElement.X == snakeHead.X && snakeElement.Y == snakeHead.Y)
{
hasCollision = true;
break;
}
}
}
}
if (hasCollision)
{
if (points > 1 && points < 5)
{
MessageBox.Show("Wąż uderzył głową w samego siebie, koniec gry. Zdobyto " + points + " punkty. Kliknij OK, by zagrać ponownie.");
}
else
{
MessageBox.Show("Wąż uderzył głową w samego siebie, koniec gry. Zdobyto " + points + " punktów. Kliknij OK, by zagrać ponownie.");
}
ResetGame();
InitializeGame();
}
}
private void CheckColisionWitchWorldItems()
{
if (apple == null)
{
return;
}
SnakeElement head = snakeElements[0];
if (head.X == apple.X && head.Y == apple.Y)
{
pictureNumer = RandomNumber.Next(0, 4);
while (pictureNumer == oldPictureNumer)
{
pictureNumer = RandomNumber.Next(0, 4);
}
oldPictureNumer = pictureNumer;
BitmapImage src = new BitmapImage();
src.BeginInit();
src.UriSource = new Uri(listUrl[pictureNumer], UriKind.Absolute);
src.EndInit();
SnakePicture.Source = src;
GameWorld.Children.Remove(apple.UIElement);
GrowSnake();
apple = null;
MakeGameFaster();
points++;
}
}
public void ChangeDirectionThrowsArgumentOutOfRangeExceptionWhenInvalidEnumValueTest()
{
// arrange
var snakeElement = new SnakeElement(1, 1, DirectionOfMove.Up);
// act
// assert
Assert.Throws <ArgumentOutOfRangeException>(() => snakeElement.ChangeDirection((DirectionOfMove)100));
}
void SmoothMovement()
{
transform.Translate(0, 0, 2 / movementSmoothing);
for (int i = 1; i < tailList.Count; i++)
{
SnakeElement temp = tailList[i];
temp.segment.transform.Translate((tailList[i - 1].lastPosition - temp.lastPosition) / movementSmoothing);
}
}
// Start is called before the first frame update
void Start()
{
// Add the first existing element to our snake queue
//snake.Add(new SnakeElement(firstSnakeElement, DIRECTION.UP));
SnakeElement snakeElement = firstSnakeElement.GetComponent <SnakeElement>();
snakeElement.direction = DIRECTION.UP;
snake.Add(snakeElement);
ChangeDirection(DIRECTION.RIGHT);
}
private bool CollisionWithApple()
{
if (Apple == null || Snake == null || Snake.Head == null)
{
return(false);
}
SnakeElement head = Snake.Head;
return(head.X == Apple.X && head.Y == Apple.Y);
}
// Update is called once per frame
/*<summary>
* Update is responsible for movement, ar for instantiation of special food.
* </summary>
*/
void Update()
{
//if game is over don't want snake to move
if (GameManager.instance.gameOver)
{
return;
}
//to be sure if game could be continued if for some reason food was not created
if (GameObject.FindGameObjectsWithTag("NormalFood").Length == 0)
{
foodPrefab.GetComponent <Food>().AddNewOne();
}
//counting time to instantiate new special food object
timeToNewSpecialFood -= Time.deltaTime;
if (timeToNewSpecialFood <= 0) // if all time has passed
{
//create new special food object
SpecialFood sf = specialFoodPrefab.GetComponent <SpecialFood>();
sf.AddNewOne();
//random new time to create new special food object
//range is selected to not create new object before old one is not expired
timeToNewSpecialFood = Random.Range(2 * sf.timeToDestroy, 2 * sf.timeToDestroy + maxTimeToNewSpecialFood);
}
//if there is not a time for a next move
if (Time.time < nextFrameTime)
{
return;
}
nextFrameTime += interval; // set up a new move time
SnakeElement.MoveTail(snake); //firstly move a snake tail
SnakeHead head = snake[0] as SnakeHead; // head will always be firs member
//check if rotation is set up
if (isTurningLeft)
{
isTurningLeft = false;
head.RotateHeadCounterClockwise();
}
else if (isTurningRight)
{
isTurningRight = false;
head.RotateHeadClockwise();
}
SnakeElement.MoveHead(snake); // move head including rotation
}
public void AddElement(GameObject obj)
{
var element = new SnakeElement
{
Direction = Direction,
Element = obj,
Speed = Speed
};
element.Direction = Body[Body.Count-1].Direction;
element.TargetPoint = Body[Body.Count-1].Element.transform.localPosition;
Body.Add(element);
}
public void MoveLeftTest()
{
// arrange
const int expected = 0;
var snakeElement = new SnakeElement(1, 1, DirectionOfMove.Left);
// act
snakeElement.Move();
// assert
Assert.AreEqual(expected, snakeElement.DistanceFromLeft);
}
public void MoveDownTest()
{
// arrange
const int expected = 1;
var snakeElement = new SnakeElement(1, 0, DirectionOfMove.Down);
// act
snakeElement.Move();
// assert
Assert.AreEqual(expected, snakeElement.DistanceFromTop);
}
public void ChangeDirectionToLeftWhenCurrentIsRightTest()
{
// arrange
const DirectionOfMove expected = DirectionOfMove.Right;
var snakeElement = new SnakeElement(1, 1, DirectionOfMove.Right);
// act
snakeElement.ChangeDirection(DirectionOfMove.Left);
snakeElement.Move();
// assert
Assert.AreEqual(expected, snakeElement.DirectionOfMove);
}
public void ChangeDirectionToUpValidConditionsTest()
{
// arrange
const DirectionOfMove expected = DirectionOfMove.Up;
var snakeElement = new SnakeElement(1, 1, DirectionOfMove.Right);
// act
snakeElement.ChangeDirection(expected);
snakeElement.Move();
// assert
Assert.AreEqual(expected, snakeElement.DirectionOfMove);
}
public void ChangeDirectionToDownWhenCurrentIsUpTest()
{
// arrange
const DirectionOfMove expected = DirectionOfMove.Up;
var snakeElement = new SnakeElement(1, 1, DirectionOfMove.Up);
// act
snakeElement.ChangeDirection(DirectionOfMove.Down);
snakeElement.Move();
// assert
Assert.AreEqual(expected, snakeElement.DirectionOfMove);
}
public void AddElement(GameObject obj)
{
var element = new SnakeElement
{
Direction = Direction,
Element = obj,
Speed = Speed
};
element.Direction = Body[Body.Count - 1].Direction;
element.TargetPoint = Body[Body.Count - 1].Element.transform.localPosition;
Body.Add(element);
}
public void ChangeDirectionToDownValidConditionsTest()
{
// arrange
const DirectionOfMove expected = DirectionOfMove.Down;
var snakeElement = new SnakeElement(0, 0, DirectionOfMove.Left);
// act
snakeElement.ChangeDirection(expected);
snakeElement.Move();
// assert
Assert.AreEqual(expected, snakeElement.DirectionOfMove);
}
private SnakeElement GetSnakeHead()
{
SnakeElement snakeHead = null;
foreach (var snakeElement in snakeElements)
{
if (snakeElement.IsHead)
{
snakeHead = snakeElement;
break;
}
}
return(snakeHead);
}
void UpdateSnake()
{
transform.rotation = currDirection;
for (int i = 0; i < tailList.Count; i++)
{
SnakeElement temp = tailList[i];
temp.lastPosition = temp.segment.transform.position;
tailList[i] = temp;
}
if (food > 0)
{
tailList.Add(new SnakeElement(Instantiate(tailPrefab, tailList[tailList.Count - 1].segment.transform.position, Quaternion.identity, snakeParent.transform), tailList[tailList.Count - 1].segment.transform.position));
food--;
}
}
public SnakeViewModel()
{
snakeHead = new SnakeElement(0, 0, 20, 20);
collisionManager = new CollisionManager();
Timer = new Timer();
Timer.dispatcherTimer.Start();
Locator = new LocatorViewModel();
MovementManager = new MovementManager(this, Locator.Food);
leftCommand = new RelayCommand(LeftAction, () => true);
rightCommand = new RelayCommand(RightAction, () => true);
upCommand = new RelayCommand(UpAction, () => true);
downCommand = new RelayCommand(DownAction, () => true);
GuiTail = new ObservableCollection <SnakeElement>();
}
public void CreateSnakeElementBehindDirectionIsDownTest()
{
// arrange
const DirectionOfMove expectedDirection = DirectionOfMove.Down;
const int expectedDistanceFromLeft = 1;
const int expectedDistanceFromTop = 1;
var snakeElement = new SnakeElement(expectedDistanceFromLeft, expectedDistanceFromTop + 1, expectedDirection);
// act
var newSnakeElement = snakeElement.CreateSnakeElementBehind();
// assert
Assert.Multiple(() =>
{
Assert.AreEqual(expectedDistanceFromLeft, newSnakeElement.DistanceFromLeft);
Assert.AreEqual(expectedDistanceFromTop, newSnakeElement.DistanceFromTop);
Assert.AreEqual(expectedDirection, newSnakeElement.DirectionOfMove);
});
}
// Start is called before the first frame update
/*<summary>
* Starts creating a new gamefield, and creating first snake.
* Then it's adjusting an game speed interval, and special food time.
* </summary>
*/
void Start()
{
//to be sure if it's set up
GameManager.instance.gameOver = false;
//interval from options
interval = GameManager.instance.GameSpeed;
nextFrameTime = Time.time + interval;
timeToNewSpecialFood = Random.Range(0f, maxTimeToNewSpecialFood); //generating time to instantiate a new special food object
//generate GameField
Field field = fieldPrefab.gameObject.GetComponent <Field>();
field.CreateField();
//create wall;
Wall wall = wallPrefab.gameObject.GetComponent <Wall>();
wall.BuildWall(field);
//snake initialization
snake = new List <SnakeElement>();
SnakeElement head = headPrefab.gameObject.GetComponent <SnakeHead>();
head.AddElement(snake);
for (int i = 0; i < 4; i++)
{
SnakeElement tail = tailPrefab.gameObject.GetComponent <SnakeTail>();
tail.AddElement(snake);
SnakeElement.MoveTail(snake);
SnakeElement.MoveHead(snake);
}
//food creation
Food food = foodPrefab.gameObject.GetComponent <Food>();
food.AddNewOne();
}
void ResetGame()
{
if (gameLoopTimer != null)
{
gameLoopTimer.Stop();
gameLoopTimer.Tick -= MainGameLoop;
gameLoopTimer = null;
}
if (GameWorld != null)
{
GameWorld.Children.Clear();
}
apple = null;
if (snakeElements != null)
{
snakeElements.Clear();
snakeElements = null;
}
tailBackup = null;
points = 0;
}
private void MoveSnake()
{
SnakeElement head = snakeElements[0];
SnakeElement tail = snakeElements[snakeElements.Count - 1];
tailBackup = new SnakeElement(elementSize)
{
X = tail.X,
Y = tail.Y
};
head.IsHead = false;
tail.IsHead = true;
tail.X = head.X;
tail.Y = head.Y;
switch (currentDirection)
{
case Direction.Right:
tail.X += elementSize;
break;
case Direction.Left:
tail.X -= elementSize;
break;
case Direction.Up:
tail.Y -= elementSize;
break;
case Direction.Down:
tail.Y += elementSize;
break;
default:
break;
}
snakeElements.RemoveAt(snakeElements.Count - 1);
snakeElements.Insert(0, tail);
}
public Snake(Position SendPosition)
{
Head = new SnakeElement(SendPosition);
Direction = Direction.Up;
}
// First initializing of the snake
static void InitializeSnake()
{
var headPositionRow = snake.ElementAt(0).Row;
var headPositionCol = snake.ElementAt(0).Col;
for (int i = 1; i < 5; i++)
{
var part = new SnakeElement(new Position(headPositionRow + i, headPositionCol), '*');
snake.Enqueue(part);
}
}
