/// <summary>
/// Shoot at a given row/column
/// </summary>
/// <param name="row">the row to attack</param>
/// <param name="col">the column to attack</param>
/// <returns>the result of the attack</returns>
internal AttackResult Shoot(int row, int col)
{
AttackResult result = default(AttackResult);
result = EnemyGrid.HitTile(row, col);
switch (result.Value)
{
case ResultOfAttack.Destroyed:
case ResultOfAttack.Hit:
_hits += 1;
_shots += 1;
break;
case ResultOfAttack.Miss:
_misses += 1;
_shots += 1;
break;
}
return(result);
}
/// <summary>
/// Shoot will swap between players and check if a player has been killed.
/// It also allows the current player to hit on the enemygrid.
/// </summary>
/// <param name="row">the row fired upon</param>
/// <param name="col">the column fired upon</param>
/// <returns>The result of the attack</returns>
public AttackResult Shoot(int row, int col)
{
AttackResult newAttack;
int otherPlayer = (_playerIndex + 1) % 2;
newAttack = Player.Shoot(row, col);
// Will exit the game when all players ships are destroyed
if (_players[otherPlayer].IsDestroyed)
{
newAttack = new AttackResult(ResultOfAttack.GameOver, newAttack.Ship, newAttack.Text, row, col);
}
AttackCompleted?.Invoke(this, newAttack);
// change player if the last hit was a miss
if (newAttack.Value == ResultOfAttack.Miss)
{
_playerIndex = otherPlayer;
}
return(newAttack);
}
/// <summary>
/// ProcessShot is able to process each shot that is made and call the right methods belonging
/// to that shot. For example, if its a miss = do nothing, if it's a hit = process that hit location
/// </summary>
/// <param name="row">the row that was shot at</param>
/// <param name="col">the column that was shot at</param>
/// <param name="result">the result from that hit</param>
protected override void ProcessShot(int row, int col, AttackResult result)
{
if (result.Value == ResultOfAttack.Miss)
{
_CurrentTarget = null;
}
else if (result.Value == ResultOfAttack.Hit)
{
ProcessHit(row, col);
}
else if (result.Value == ResultOfAttack.Destroyed)
{
ProcessDestroy(row, col, result.Ship);
}
else if (result.Value == ResultOfAttack.ShotAlready)
{
throw (new ApplicationException("Error in AI"));
}
if (_Targets.Count == 0)
{
_CurrentState = AIStates.Searching;
}
}
/// <summary>
/// The AI takes its attacks until its go is over.
/// </summary>
/// <returns>The result of the last attack</returns>
public override AttackResult Attack()
{
AttackResult result = default(AttackResult);
int row = 0;
int column = 0;
//take single turn, return result of shot
Delay();
GenerateCoords(ref row, ref column);
//generate coordinates for shot
result = _game.Shoot(row, column);
//take shot
ProcessShot(row, column, result);
if (result.Value == ResultOfAttack.Destroyed)
{
result.Text = "destroyed your";
Console.WriteLine(result.Text);
}
return(result);
}
/// <summary>
/// Gets the _ai to attack.
/// </summary>
/// <remarks>
/// Checks the attack result once the attack is complete.
/// </remarks>
private static void AIAttack()
{
AttackResult result = _myGame.Player.Attack();
CheckAttackResult(result);
}
/// <summary>
/// Gets the player to attack the indicated row and column.
/// </summary>
/// <param name="row">the row to attack</param>
/// <param name="col">the column to attack</param>
/// <remarks>
/// Checks the attack result once the attack is complete
/// </remarks>
public static void Attack(int row, int col)
{
AttackResult result = _myGame.Shoot(row, col);
CheckAttackResult(result);
}
/// <summary>
/// Listens for attacks to be completed.
/// </summary>
/// <param name="sender">the game</param>
/// <param name="result">the result of the attack</param>
/// <remarks>
/// Displays a message, plays sound and redraws the screen
/// </remarks>
private static void AttackCompleted(object sender, AttackResult result)
{
bool isHuman = _myGame.Player == HumanPlayer;
if (isHuman)
{
UtilityFunctions.Message = "You " + result.ToString();
}
else
{
UtilityFunctions.Message = "The _ai " + result.ToString();
}
switch (result.Value)
{
case ResultOfAttack.Destroyed: {
PlayHitSequence(result.Row, result.Column, isHuman);
if (Extentions.MusicPlaying == true)
{
Audio.PlaySoundEffect(GameResources.GetSound("Sink"));
}
else if (Extentions.MusicPlaying == false)
{
}
break;
}
case ResultOfAttack.GameOver: {
PlayHitSequence(result.Row, result.Column, isHuman);
Audio.PlaySoundEffect(GameResources.GetSound("Sink"));
while (Audio.SoundEffectPlaying(GameResources.GetSound("Sink")))
{
SwinGame.Delay(10);
SwinGame.RefreshScreen();
}
if (HumanPlayer.IsDestroyed)
{
if (Extentions.MusicPlaying == true)
{
Audio.PlaySoundEffect(GameResources.GetSound("Lose"));
}
}
else
{
if (Extentions.MusicPlaying == true)
{
Audio.PlaySoundEffect(GameResources.GetSound("Winner"));
}
}
break;
}
case ResultOfAttack.Hit: {
PlayHitSequence(result.Row, result.Column, isHuman);
break;
}
case ResultOfAttack.Miss: {
PlayMissSequence(result.Row, result.Column, isHuman);
break;
}
case ResultOfAttack.ShotAlready: {
if (Extentions.MusicPlaying == true)
{
Audio.PlaySoundEffect(GameResources.GetSound("Error"));
}
break;
}
}
}
/// <summary>
/// Checks the results of the attack and switches to
/// Ending the Game if the result was game over.
/// </summary>
/// <param name="result">the result of the last
/// attack</param>
/// <remarks>Gets the AI to attack if the result switched
/// to the AI player.</remarks>
private static void CheckAttackResult(AttackResult result)
{
switch (result.Value) {
case ResultOfAttack.Miss:
if (object.ReferenceEquals(_theGame.Player, ComputerPlayer))
AIAttack();
break;
case ResultOfAttack.GameOver:
SwitchState(GameState.EndingGame);
break;
case ResultOfAttack.Hit:
if (object.ReferenceEquals(_theGame.Player, ComputerPlayer))
AIAttack();
break;
case ResultOfAttack.Destroyed:
if (object.ReferenceEquals(_theGame.Player, ComputerPlayer))
AIAttack();
break;
}
}
/// <summary>
/// Listens for attacks to be completed.
/// </summary>
/// <param name="sender">the game</param>
/// <param name="result">the result of the attack</param>
/// <remarks>
/// Displays a message, plays sound and redraws the screen
/// </remarks>
private static void AttackCompleted(object sender, AttackResult result)
{
bool isHuman = false;
isHuman = object.ReferenceEquals(_theGame.Player, HumanPlayer);
if (isHuman) {
UtilityFunctions.Message = "You " + result.ToString();
} else {
UtilityFunctions.Message = "The AI " + result.ToString();
}
switch (result.Value) {
case ResultOfAttack.Destroyed:
PlayHitSequence(result.Row, result.Column, isHuman);
Audio.PlaySoundEffect(GameResources.GameSound("Sink"));
break;
case ResultOfAttack.GameOver:
PlayHitSequence(result.Row, result.Column, isHuman);
Audio.PlaySoundEffect(GameResources.GameSound("Sink"));
while (Audio.SoundEffectPlaying(GameResources.GameSound("Sink"))) {
SwinGame.Delay(10);
SwinGame.RefreshScreen();
}
if (HumanPlayer.IsDestroyed) {
Audio.PlaySoundEffect(GameResources.GameSound("Lose"));
} else {
Audio.PlaySoundEffect(GameResources.GameSound("Winner"));
}
break;
case ResultOfAttack.Hit:
PlayHitSequence(result.Row, result.Column, isHuman);
break;
case ResultOfAttack.Miss:
PlayMissSequence(result.Row, result.Column, isHuman);
break;
case ResultOfAttack.ShotAlready:
Audio.PlaySoundEffect(GameResources.GameSound("Error"));
break;
}
}
/// <summary> /// The last shot had the following result. Child classes can use this /// to prepare for the next shot. /// </summary> /// <param name="result">The result of the shot</param> /// <param name="row">the row shot</param> /// <param name="col">the column shot</param> protected abstract void ProcessShot(int row, int col, AttackResult result);
/// <summary>
/// ProcessShot is able to process each shot that is made and call the right methods belonging
/// to that shot. For example, if its a miss = do nothing, if it's a hit = process that hit location
/// </summary>
/// <param name="row">the row that was shot at</param>
/// <param name="col">the column that was shot at</param>
/// <param name="result">the result from that hit</param>
protected override void ProcessShot(int row, int col, AttackResult result)
{
switch (result.Value) {
case ResultOfAttack.Miss:
_CurrentTarget = null;
break;
case ResultOfAttack.Hit:
ProcessHit(row, col);
break;
case ResultOfAttack.Destroyed:
ProcessDestroy(row, col, result.Ship);
break;
case ResultOfAttack.ShotAlready:
throw new ApplicationException("Error in AI");
}
if (_Targets.Count == 0)
_CurrentState = AIStates.Searching;
}
/// <summary> /// The last shot had the following result. Child classes can use this /// to prepare for the next shot. /// </summary> /// <param name="result">The result of the shot</param> /// <param name="row">the row shot</param> /// <param name="col">the column shot</param> protected abstract void ProcessShot(int row, int col, AttackResult result);
/// <summary>
/// ProcessShot will be called uppon when a ship is found.
/// It will create a stack with targets it will try to hit. These targets
/// will be around the tile that has been hit.
/// </summary>
/// <param name="row">the row it needs to process</param>
/// <param name="col">the column it needs to process</param>
/// <param name="result">the result og the last shot (should be hit)</param>
protected override void ProcessShot(int row, int col, AttackResult result)
{
}
/// <summary>
/// ProcessShot will be called uppon when a ship is found.
/// It will create a stack with targets it will try to hit. These targets
/// will be around the tile that has been hit.
/// </summary>
/// <param name="row">the row it needs to process</param>
/// <param name="col">the column it needs to process</param>
/// <param name="result">the result og the last shot (should be hit)</param>
protected override void ProcessShot(int row, int col, AttackResult result)
{
if (result.Value == ResultOfAttack.Hit) {
_CurrentState = AIStates.TargetingShip;
AddTarget(row - 1, col);
AddTarget(row, col - 1);
AddTarget(row + 1, col);
AddTarget(row, col + 1);
} else if (result.Value == ResultOfAttack.ShotAlready) {
throw new ApplicationException("Error in AI");
}
}
/// <summary>
/// Shoot will swap between players and check if a player has been killed.
/// It also allows the current player to hit on the enemygrid.
/// </summary>
/// <param name="row">the row fired upon</param>
/// <param name="col">the column fired upon</param>
/// <returns>The result of the attack</returns>
public AttackResult Shoot(int row, int col)
{
AttackResult newAttack = default(AttackResult);
int otherPlayer = (_playerIndex + 1) % 2;
newAttack = Player.Shoot(row, col);
//Will exit the game when all players ships are destroyed
if (_players[otherPlayer].IsDestroyed) {
newAttack = new AttackResult(ResultOfAttack.GameOver, newAttack.Ship, newAttack.Text, row, col);
}
if (AttackCompleted != null) {
AttackCompleted(this, newAttack);
// Console.WriteLine(newAttack.Text);
}
//change player
if (newAttack.Value == ResultOfAttack.Miss || newAttack.Value == ResultOfAttack.Hit || newAttack.Value == ResultOfAttack.Destroyed) {
_playerIndex = otherPlayer;
}
return newAttack;
}
/// <summary>
/// ProcessShot will be called uppon when a ship is found.
/// It will create a stack with targets it will try to hit. These targets
/// will be around the tile that has been hit.
/// </summary>
/// <param name="row">the row it needs to process</param>
/// <param name="col">the column it needs to process</param>
/// <param name="result">the result og the last shot (should be hit)</param>
protected override void ProcessShot(int row, int col, AttackResult result)
{
}
