public PointF[] head(Direction compass, Coordinates _position)
{
PointF[] _points;
switch (compass) {
case Direction.East:
_points = new[] {
new PointF (_position.X, _position.Y),
new PointF (_position.X + 8, _position.Y),
new PointF (_position.X + 12, _position.Y + 6),
new PointF (_position.X + 8, _position.Y + 12),
new PointF (_position.X, _position.Y + 12),
new PointF (_position.X, _position.Y)
};
break;
case Direction.West:
_points = new[] {
new PointF (_position.X, _position.Y + 6),
new PointF (_position.X + 4, _position.Y),
new PointF (_position.X + 12, _position.Y),
new PointF (_position.X + 12, _position.Y + 12),
new PointF (_position.X + 4, _position.Y + 12),
new PointF (_position.X, _position.Y + 6)
};
break;
case Direction.North:
_points = new[] {
new PointF (_position.X + 6, _position.Y),
new PointF (_position.X + 12, _position.Y + 4),
new PointF (_position.X + 12, _position.Y + 12),
new PointF (_position.X, _position.Y + 12),
new PointF (_position.X, _position.Y + 4),
new PointF (_position.X + 6, _position.Y)
};
break;
case Direction.South:
_points = new[] {
new PointF (_position.X, _position.Y),
new PointF (_position.X + 12, _position.Y),
new PointF (_position.X + 12, _position.Y + 8),
new PointF (_position.X + 6, _position.Y + 12),
new PointF (_position.X, _position.Y + 8),
new PointF (_position.X, _position.Y)
};
break;
default:
_points = new[] {
new PointF (_position.X + 6, _position.Y),
new PointF (_position.X + 12, _position.Y + 4),
new PointF (_position.X + 12, _position.Y + 12),
new PointF (_position.X, _position.Y + 12),
new PointF (_position.X, _position.Y + 4),
new PointF (_position.X + 6, _position.Y)
};
break;
}
return _points;
}
public PointF[] body(Coordinates _position)
{
PointF[] _points;
_points = new[] {
new PointF (_position.X, _position.Y),
new PointF (_position.X + 12, _position.Y),
new PointF (_position.X + 12, _position.Y + 12),
new PointF (_position.X, _position.Y + 12),
new PointF (_position.X, _position.Y)
};
return _points;
}
public PointF[] apple(Coordinates _position)
{
PointF[] _points = new[] {
new PointF (_position.X, _position.Y + 2),
new PointF (_position.X + 2, _position.Y),
new PointF (_position.X + 3, _position.Y),
new PointF (_position.X + 6, _position.Y + 3),
new PointF (_position.X + 9, _position.Y),
new PointF (_position.X + 10, _position.Y),
new PointF (_position.X + 12, _position.Y + 2),
new PointF (_position.X + 12, _position.Y + 10),
new PointF (_position.X + 10, _position.Y + 12),
new PointF (_position.X + 2, _position.Y + 12),
new PointF (_position.X, _position.Y + 10),
new PointF (_position.X, _position.Y + 2)
};
return _points;
}
private void BuildApples()
{
Coordinates newApple = null;
bool collision = true;
while (collision) {
int newX = 1;
int newY = 1;
while (newX % 12 != 0)
newX = 12 + random.Next (xMax - 24);
while (newY % 12 != 0)
newY = 12 + random.Next (yMax - 24);
newApple = new Coordinates (newX, newY);
collision = false;
foreach (Coordinates position in snake) {
if (position == newApple)
collision = true;
}
}
apple.Add (newApple);
_applePoints.Add (drawObjects.apple (newApple));
}
private void BuildWalls()
{
_wallPoints = new List<PointF[]> ();
Coordinates _position;
for (int x = 0; x < xMax; x += 12) {
_position = new Coordinates (x, 0);
_wallPoints.Add (drawObjects.wall (_position));
_position = new Coordinates (x, yMax - 12);
_wallPoints.Add (drawObjects.wall (_position));
}
for (int y = 1; y < yMax; y += 12) {
_position = new Coordinates (0, y);
_wallPoints.Add (drawObjects.wall (_position));
_position = new Coordinates (xMax - 12, y);
_wallPoints.Add (drawObjects.wall (_position));
}
}
private void AddApple()
{
Coordinates coordinates = null;
bool invalidCoordinate = true;
while (invalidCoordinate) {
int randomX = 1 + random.Next (xMax - 2);
int randomY = 1 + random.Next (yMax - 2);
coordinates = new Coordinates (randomX, randomY);
foreach (Coordinates _snake in snake) {
if (_snake.X.Equals (coordinates.X) && _snake.Y.Equals (coordinates.Y))
invalidCoordinate = true;
}
invalidCoordinate = false;
}
apples.Add (coordinates);
}
private void BuildSnake()
{
bool isGrowing = false;
Coordinates head = snake [0];
Coordinates newHead = new Coordinates (1, 1);
switch (direction) {
case Direction.East:
newHead = new Coordinates (head.X + 1, head.Y);
break;
case Direction.West:
newHead = new Coordinates (head.X - 1, head.Y);
break;
case Direction.North:
newHead = new Coordinates (head.X, head.Y - 1);
break;
case Direction.South:
newHead = new Coordinates (head.X, head.Y + 1);
break;
}
if ((newHead.X < 1) || (newHead.Y < 1) || (newHead.X > xMax - 2)
|| (newHead.Y > yMax - 2)) {
playing = false;
return;
}
foreach (Coordinates _snake in snake) {
if (_snake.X.Equals (newHead.X) && _snake.Y.Equals (newHead.Y)) {
playing = false;
return;
}
}
foreach (Coordinates apple in apples) {
if (apple.X.Equals (newHead.X) && apple.Y.Equals (newHead.Y)) {
apples.Remove (apple);
AddApple ();
Score++;
textScore.Text = string.Format ("Score: {0} ", Score.ToString ());
delayMove -= 20;
isGrowing = true;
break;
}
}
snake.Insert (0, newHead);
if (!isGrowing)
snake.RemoveAt (snake.Count - 1);
int index = 0;
foreach (Coordinates c in snake) {
if (index == 0) {
switch (direction) {
case Direction.East:
SetObject (GameObjects.HeadRight, c.X, c.Y);
break;
case Direction.West:
SetObject (GameObjects.HeadLeft, c.X, c.Y);
break;
case Direction.North:
SetObject (GameObjects.HeadUP, c.X, c.Y);
break;
case Direction.South:
SetObject (GameObjects.HeadDown, c.X, c.Y);
break;
}
} else if (direction == Direction.East || direction == Direction.West)
SetObject (GameObjects.BodyH, c.X, c.Y);
else
SetObject (GameObjects.BodyV, c.X, c.Y);
index++;
}
}
