snake

class SnakeGame:

    def __init__(self, width: int, height: int, foods: List[List[int]]):
        self.maxRow = height
        self.maxCol = width
        self.foodList = []
        self.currentX = 0
        self.currentY = 0
        self.score = 0

        for food in foods:
            x, y = food
            self.foodList.append((x,y))

        self.dir = {
            'L': (0, -1),
            'R': (0, 1),
            'D': (1, 0),
            'U': (-1, 0)
        }


    def move(self, direction: str) -> int:

        x = self.currentX + self.dir[direction][0]
        y = self.currentY + self.dir[direction][1]
        if (self.checkBoundary(self.maxRow, self.maxCol, x, y) == False):
            return -1

        self.currentX = x
        self.currentY = y
        if self.score < len(self.foodList) and self.foodList[self.score][0] == x and self.foodList[self.score][1] == y:
            self.score += 1
            return self.score
        else:
            return self.score


    def checkBoundary(self, r, c, posx, posy):
        if ( 0 <= posx < r and 0 <= posy < c):
            return True
        else:
            return False



# Your SnakeGame object will be instantiated and called as such:
# obj = SnakeGame(width, height, food)
# param_1 = obj.move(direction)