public static void TickAliensFiring(AliensState aliensState, out AliensFiringInput newAliensFiringInput)
{
Random r = new Random();
if (r.Next(10) == 0)
{
List <int> bottomRow = aliensState.GetBottomRow();
newAliensFiringInput = new AliensFiringInput(true, bottomRow[r.Next(bottomRow.Count)]);
}
else
{
newAliensFiringInput = new AliensFiringInput(false, 0);
}
}
public static WorldState Tick(WorldState worldState, PlayerInput playerInput)
{
PlayerState newPlayerState = TickPlayer(worldState.GameConfigState, worldState.PlayerState, playerInput);
AliensState newAliensState;
AliensMovementState newAliensMovementState;
AliensFiringInput newAliensFiringInput;
bool createNewAliens = (worldState.AliensState.RelativePositions.Count == 0);
if (createNewAliens)
{
newAliensState = CreateNewAliensState(worldState.GameConfigState.Width, worldState.GameConfigState.Height,
worldState.GameConfigState.AliensWidth, worldState.GameConfigState.AliensHeight);
newAliensMovementState = new AliensMovementState(AliensMovementState.MovementDirection.Right);
newAliensFiringInput = new AliensFiringInput(false, 0);
}
else
{
TickAliens(worldState.GameConfigState, worldState.AliensState, worldState.AliensMovementState, out newAliensState, out newAliensMovementState, out newAliensFiringInput);
}
RocketsState newRocketsState = TickRockets(worldState.GameConfigState, worldState.RocketsState, worldState.PlayerState, playerInput);
BombsState newBombsState = TickBombs(worldState.GameConfigState, worldState.BombsState, worldState.PlayerState, worldState.AliensState, newAliensFiringInput);
List <Tuple <int, int> > alienRocketCollisions = FindAlienRocketCollisions(newAliensState, newRocketsState);
List <int> playerBombCollisions = FindPlayerBombCollisions(worldState.GameConfigState, newBombsState, newPlayerState);
AliensState newAliensState2 = ResolveAlienCollisions(newAliensState, alienRocketCollisions);
RocketsState newRocketsState2 = ResolveRocketCollisions(newRocketsState, alienRocketCollisions);
GameProgressState newGameProgressState = TickGameProgress(worldState.GameConfigState, worldState.GameProgressState, newAliensState2, alienRocketCollisions.Count, playerBombCollisions.Count != 0);
return(new WorldState(worldState.GameConfigState, newPlayerState, newAliensState2, newAliensMovementState, newRocketsState2, newBombsState, newGameProgressState));
}
public static void TickAliens(GameConfigState gameConfigState, AliensState aliensState, AliensMovementState aliensMovementState,
out AliensState newAliensState, out AliensMovementState newAliensMovementState, out AliensFiringInput newAliensFiringInput)
{
Vector2i topLeft, bottomRight;
aliensState.GetAbsoluteBoundingBox(out topLeft, out bottomRight);
AliensMovementState.MovementDirection nextMovementDirection = ChooseNewAliensMovementDirection(gameConfigState, aliensMovementState, topLeft, bottomRight);
Dictionary <AliensMovementState.MovementDirection, Vector2i> movementDirectionToDelta =
new Dictionary <AliensMovementState.MovementDirection, Vector2i>
{
{ AliensMovementState.MovementDirection.Left, new Vector2i(-1, 0) },
{ AliensMovementState.MovementDirection.Right, new Vector2i(1, 0) },
{ AliensMovementState.MovementDirection.Down, new Vector2i(0, 1) },
};
Vector2i movementDelta = movementDirectionToDelta[nextMovementDirection];
newAliensState = new AliensState(aliensState.TopLeft + movementDelta, aliensState.RelativePositions);
newAliensMovementState = new AliensMovementState(nextMovementDirection);
TickAliensFiring(aliensState, out newAliensFiringInput);
}
public static BombsState TickBombs(GameConfigState gameConfigState, BombsState bombsState, PlayerState playerState, AliensState aliensState, AliensFiringInput aliensFiringInput)
{
List <Vector2i> newPositions = bombsState.Positions.Select(position => position + new Vector2i(0, 1)).Where(position => position.Y < gameConfigState.Height).ToList();
if (aliensFiringInput.Fire)
{
newPositions.Add(aliensState.TopLeft + aliensState.RelativePositions[aliensFiringInput.AlienIndex]);
}
return(new BombsState(newPositions));
}