private void DiselectCurrentCell()
{
currentCell.SwitchSelection();
selectedCell = null;
}
private void SelectCurrentCell()
{
currentCell.SwitchSelection();
selectedCell?.SwitchSelection();
selectedCell = currentCell;
}
internal void UnswapBlocks()
{
currentCell.SwapWith(selectedCell, true);
selectedCell = null;
}
/// <summary>
/// Process user interactions. Highlight hovered over cells and selects clicked cells. Checks for swap action.
/// </summary>
/// <returns>Returns true if user swapped blocks</returns>
internal bool UserInput()
{
MouseState mouseState = Mouse.GetState();
if (Rectangle.Contains(mouseState.Position))
{
int i = (mouseState.Position.Y - Rectangle.Y) / CellSize.Y;
int j = (mouseState.Position.X - Rectangle.X) / CellSize.X;
if (currentCell != null && cells[i, j] != currentCell)
{
currentCell.State = GuiElementState.Normal;
}
currentCell = cells[i, j];
if (mouseState.LeftButton == ButtonState.Released && currentCell.State == GuiElementState.Pressed)
{
currentCell.State = GuiElementState.Hover;
if (currentCell.IsSelected)
{
DiselectCurrentCell();
}
else if (selectedCell != null && currentCell.IsCloseTo(selectedCell))
{
//Swap condition reached
return true;
}
else
{
SelectCurrentCell();
}
}
else if (mouseState.LeftButton == ButtonState.Pressed)
{
currentCell.State = GuiElementState.Pressed;
}
else
{
currentCell.State = GuiElementState.Hover;
}
}
else
{
if (currentCell != null)
{
currentCell.State = GuiElementState.Normal;
}
}
return false;
}
/// <summary>
/// Looks for horizontal and vertical matches, destroys matched blocks and spawns bonuses.
/// </summary>
/// <returns>Returns score points earned in this destroy cycle. Zero score means no match.</returns>
internal int MatchAndDestroy()
{
int score = 0;
List<Cell> toDestroy = new List<Cell>(64);
List<Cell> newBonuses = new List<Cell>();
for (int i = 0; i < cells.GetLength(0); i++)
{
List<Cell> temp = new List<Cell>(8) { cells[i, 0] };
for (int j = 1; j < cells.GetLength(1); j++)
{
bool stop = false;
if (cells[i, j].Shape == temp[0].Shape)
{
temp.Add(cells[i, j]);
}
else
{
stop = true;
}
if (stop || j == cells.GetLength(1) - 1)
{
if (temp.Count >= Consts.MATCH_MIN)
{
if (selectedCell != null)
{
newBonuses.Add(SpawnBonus(temp, Bonus.LineHorizontal));
}
toDestroy.AddRange(temp);
score += temp.Count * temp.Count * Consts.SCORE_BONUS;
}
temp.Clear();
temp.Add(cells[i, j]);
}
}
}
for (int j = 0; j < cells.GetLength(1); j++)
{
List<Cell> temp = new List<Cell>(8) { cells[0, j] };
for (int i = 1; i < cells.GetLength(0); i++)
{
bool stop = false;
if (cells[i, j].Shape == temp[0].Shape)
{
temp.Add(cells[i, j]);
}
else
{
stop = true;
}
if (stop || i == cells.GetLength(0) - 1)
{
if (temp.Count >= Consts.MATCH_MIN)
{
if (selectedCell != null)
{
newBonuses.Add(SpawnBonus(temp, Bonus.LineVertical));
}
var intersect = toDestroy.Intersect(temp);
List<Cell> intersectList = intersect.ToList();
foreach (var bonusCell in intersectList)
{
temp.Remove(bonusCell);
toDestroy.Remove(bonusCell);
bonusCell.Bonus = Bonus.Bomb;
}
toDestroy.AddRange(temp);
score += temp.Count * temp.Count * Consts.SCORE_BONUS;
}
temp.Clear();
temp.Add(cells[i, j]);
}
}
}
newBonuses.ForEach(c => toDestroy.Remove(c));
toDestroy.ForEach(cell => cell.Destroy());
if (selectedCell != null && score > 0)
{
selectedCell = null;
}
return score;
}
internal override void LoadContent(GraphicsDeviceManager graphics, ContentManager content)
{
shapesAtlas = new ShapesAtlas(content.Load<Texture2D>("shapes"));
backTexture = new Texture2D(graphics.GraphicsDevice, 1, 1);
backTexture.SetData(new[] { Color.White });
fireTexture = content.Load<Texture2D>("fire");
for (int i = 0; i < cells.GetLength(0); i++)
{
for (int j = 0; j < cells.GetLength(1); j++)
{
Cell cell = new Cell(this, Shape.Empty, shapesAtlas, backTexture, i, j);
cells[i, j] = cell;
}
}
}
public bool IsCloseTo(Cell cell)
{
return (Column == cell.Column && (Row == cell.Row - 1 || Row == cell.Row + 1)) ||
(Row == cell.Row && (Column == cell.Column - 1 || Column == cell.Column + 1)) ? true : false;
}
internal void SwapWith(Cell cell, bool unswap)
{
int swapSpeed = unswap ? SPEED_UNSWAP : SPEED_SWAP;
State = GuiElementState.Normal;
cell.State = GuiElementState.Normal;
Vector2 tempLocation = location;
location = cell.location;
cell.location = tempLocation;
cell.moveDestination = location;
moveDestination = cell.location;
Shape tempShape = Shape;
Shape = cell.Shape;
cell.Shape = tempShape;
Bonus tempBonus = Bonus;
Bonus = cell.Bonus;
cell.Bonus = tempBonus;
speed = swapSpeed;
cell.speed = swapSpeed;
opacity = 0.5f;
cell.opacity = 0.5f;
Animation = Animation.Swap;
cell.Animation = Animation.Swap;
}
internal void FallInto(Cell cell)
{
cell.State = GuiElementState.Normal;
cell.Shape = Shape;
Shape = Shape.Empty;
cell.Bonus = Bonus;
Bonus = Bonus.None;
cell.moveDestination = cell.location;
cell.location = location;
cell.speed = (cell.Row * SPEED_FALL_BASE) + SPEED_FALL_MOD;
cell.Animation = Animation.Fall;
}