"""
Represents the current state of the game.
Contains : 
- Player coins
- stopGame flag
- Player position
"""
class GameState:
    PLAYER_MOVEMENTS = ["left_down", "left", "left_up", "up", "right_up", "right", "right_down"]
    PLAYER_VELOCITIES = [*PLAYER_MOVEMENTS, "down"]
    
    def __init__(self):
        self.playerPosition = (0, 0)
        self.stopGame = False
        self.movesCount = 0
        self.playerVelocity = -1 # -1 means no velocity
        self.gameWon = False
        self.coins = 0
        
    def set_player_position(self, x, y):
        self.playerPosition = (x, y)
        
    def set_player_position(self, position: tuple):
        self.playerPosition = position
        
    def get_player_position(self):
        return self.playerPosition
        
    def set_player_velocity(self, velocity):
        """Set the player velocity, meaning where the player is currently going
        """
        if velocity not in self.PLAYER_VELOCITIES and velocity != -1:
            raise ValueError(f"Invalid player velocity: {velocity}. Must be one of {self.PLAYER_VELOCITIES} or -1.")
        self.playerVelocity = velocity
        
    def add_move_count(self, nb=1):
        self.movesCount += nb
        
    def set_stop_game(self, stop):
        self.stopGame = stop
        
    def set_game_won(self, won):
        self.gameWon = won
    
    def add_coin(self):
        self.coins += 1