public static WorldState CreateNewWorldState(int width, int height, int maxRockets, int aliensWidth, int aliensHeight, int initialLives)
{
GameConfigState gameConfigState = new GameConfigState(width, height, maxRockets, aliensWidth, aliensHeight);
PlayerState playerState = new PlayerState(width / 2);
AliensState aliensState = CreateNewAliensState(width, height, aliensWidth, aliensHeight);
AliensMovementState aliensMovementState = new AliensMovementState(AliensMovementState.MovementDirection.Right);
RocketsState rocketsState = new RocketsState(new List <Vector2i>());
BombsState bombsState = new BombsState(new List <Vector2i>());
GameProgressState gameProgressState = new GameProgressState(0, initialLives, false);
WorldState worldState = new WorldState(gameConfigState, playerState, aliensState, aliensMovementState, rocketsState, bombsState, gameProgressState);
return(worldState);
}
public WorldState(GameConfigState gameConfigState, PlayerState playerState, AliensState aliensState, AliensMovementState aliensMovementState,
RocketsState rocketsState, BombsState bombsState, GameProgressState gameProgressState)
{
GameConfigState = gameConfigState;
PlayerState = playerState;
AliensState = aliensState;
AliensMovementState = aliensMovementState;
RocketsState = rocketsState;
BombsState = bombsState;
GameProgressState = gameProgressState;
}
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 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));
}
private static AliensMovementState.MovementDirection ChooseNewAliensMovementDirection(GameConfigState gameConfigState, AliensMovementState aliensMovementState, Vector2i topLeft, Vector2i bottomRight)
{
switch (aliensMovementState.PreviousMovementDirection)
{
case AliensMovementState.MovementDirection.Left:
if (topLeft.X == 0)
{
return(AliensMovementState.MovementDirection.Down);
}
else
{
return(aliensMovementState.PreviousMovementDirection);
}
case AliensMovementState.MovementDirection.Right:
if (bottomRight.X == gameConfigState.Width)
{
return(AliensMovementState.MovementDirection.Down);
}
else
{
return(aliensMovementState.PreviousMovementDirection);
}
case AliensMovementState.MovementDirection.Down:
if (topLeft.X == 0)
{
return(AliensMovementState.MovementDirection.Right);
}
else
{
return(AliensMovementState.MovementDirection.Left);
}
default:
throw new NotImplementedException();
}
}
