/// <summary>
/// Possibly adds an animal at a grid position, by reading a given symbol.
/// If the symbol does not represent an animal, then nothnig happens.
/// </summary>
/// <param name="x">The x-coordinate of the tile.</param>
/// <param name="y">The y-coordinate of the tile.</param>
/// <param name="symbol">The symbol to read.</param>
void AddAnimal(int x, int y, char symbol)
{
Animal result = null;
// a shark?
if (symbol == '@')
{
result = new Shark(this, new Point(x, y));
}
// a penguin or seal, possibly inside a hole?
if (result == null)
{
int animalIndex = GetAnimalIndex(symbol);
if (animalIndex < 0)
{
animalIndex = GetAnimalInHoleIndex(symbol);
}
if (animalIndex >= 0)
{
result = new MovableAnimal(this, new Point(x, y), animalIndex);
}
}
}
protected override void ApplyCurrentPosition()
{
// set the position in the game world
LocalPosition = level.GetCellPosition(currentGridPosition.X, currentGridPosition.Y);
// stop moving
velocity = Vector2.Zero;
// If the current tile already contains another animal, then both animals should disappear!
Animal otherAnimal = level.GetAnimal(currentGridPosition);
if (otherAnimal != null)
{
level.RemoveAnimalFromGrid(currentGridPosition);
Visible = false;
otherAnimal.Visible = false;
// if the other animal matches, notify the game that we've made a pair
if (otherAnimal is MovableAnimal)
{
MovableAnimal other = (MovableAnimal)otherAnimal;
level.PairFound(this, other);
}
// otherwise, the animal is touching a shark: play a sound
else
{
ExtendedGame.AssetManager.PlaySoundEffect("Sounds/snd_eat");
}
return;
}
// if the current tile has the "empty" type, let the animal die
Tile.Type tileType = level.GetTileType(currentGridPosition);
if (tileType == Tile.Type.Empty)
{
// the animal has fallen into the water: play a sound
ExtendedGame.AssetManager.PlaySoundEffect("Sounds/snd_eat");
Visible = false;
return;
}
// In all other cases, the animal shouldn't disappear yet, so it's still part of the level.
// Add the animal to the level's grid.
level.AddAnimalToGrid(this, currentGridPosition);
// if the current tile is a hole, mark this animal as "inside a hole"
if (tileType == Tile.Type.Hole)
{
IsInHole = true;
}
}
bool IsPairWith(MovableAnimal other)
{
// if one animal is a seal, then there's no match
if (IsSeal || other.IsSeal)
{
return(false);
}
// if one animal is a multi-colored penguin, then there's always a match
if (IsMultiColoredPenguin || other.IsMultiColoredPenguin)
{
return(true);
}
// otherwise, there's a match if both animals are the same type of penguin
return(AnimalIndex == other.AnimalIndex);
}
/// <summary>
/// Updates the game's status after a pair of matching penguins has been created.
/// </summary>
/// <param name="penguin1">The first penguin.</param>
/// <param name="penguin2">The second penguin.</param>
public void PairFound(MovableAnimal penguin1, MovableAnimal penguin2)
{
int penguinType = MathHelper.Max(penguin1.AnimalIndex, penguin2.AnimalIndex);
pairList.AddPair(penguinType);
// if the level has been completed, notify the playing state
if (pairList.Completed)
{
PlayingState playingState = (PlayingState)ExtendedGame
.GameStateManager.GetGameState(PenguinPairs.StateName_Playing);
playingState.LevelCompleted(LevelIndex);
}
else
{
ExtendedGame.AssetManager.PlaySoundEffect("Sounds/snd_pair");
}
}
/// <summary>
/// Possibly adds an animal at a grid position, by reading a given symbol.
/// If the symbol does not represent an animal, then nothnig happens.
/// </summary>
/// <param name="x">The x-coordinate of the tile.</param>
/// <param name="y">The y-coordinate of the tile.</param>
/// <param name="symbol">The symbol to read.</param>
void AddAnimal(int x, int y, char symbol)
{
Animal result = null;
// a shark?
if (symbol == '@')
{
result = new Shark(this);
}
// a penguin or seal that is not in a hole?
if (result == null)
{
int animalIndex = GetAnimalIndex(symbol);
if (animalIndex >= 0)
{
result = new MovableAnimal(this, animalIndex, false);
}
}
// a penguin or seal that *is* in a hole?
if (result == null)
{
int animalIndex = GetAnimalInHoleIndex(symbol);
if (animalIndex >= 0)
{
result = new MovableAnimal(this, animalIndex, true);
}
}
// if we've loaded an animal now, add it to the grid
if (result != null)
{
result.LocalPosition = GetCellPosition(x, y);
animalsOnTiles[x, y] = result;
}
}
public override void Reset()
{
base.Reset();
SelectedAnimal = null;
}
/// <summary>
/// Updates the game's status after a pair of matching penguins has been created.
/// </summary>
/// <param name="penguin1">The first penguin.</param>
/// <param name="penguin2">The second penguin.</param>
public void PairFound(MovableAnimal penguin1, MovableAnimal penguin2)
{
int penguinType = MathHelper.Max(penguin1.AnimalIndex, penguin2.AnimalIndex);
pairList.AddPair(penguinType);
}
/// <summary>
/// Marks the given animal as the selected one.
/// </summary>
/// <param name="animal">The animal to select.</param>
public void SelectAnimal(MovableAnimal animal)
{
selector.SelectedAnimal = animal;
}
