class Grid():
    def __init__(self):
        self.sandCount = 0
        self._grid = []
        for _ in range(maxY):
            self._grid.append([])
        for line in self._grid:
            for _ in range(maxX):
                line.append('.')
        for i in range(len(self._grid[-1])):
            self._grid[-1][i] = '#'

    def drawRocks(self, start, end):
        if start[0] == end[0]:
            _min = min(start[1], end[1])
            _max = max(start[1], end[1])
            for i in range(_max - _min + 1):
                self._grid[_min + i][start[0]-modifier] = '#'
        if start[1] == end[1]:
            _min = min(start[0], end[0]) - modifier
            _max = max(start[0], end[0]) - modifier
            for i in range(_max - _min + 1):
                self._grid[start[1]][_min + i] = '#'

    def printGrid(self):
        for line in self._grid:
            tempA = ''
            for coord in line:
                tempA += coord
            print(tempA)

    def sand(self):
        while True:
            posX = 500 - modifier
            posY = 0
            while True:
                if posX == 0:
                    self.expand('left')
                    posX += 1
                if posX == len(self._grid[0]) - 1:
                    self.expand('rigth')
                if self._grid[posY + 1][posX] == '.':
                    posY += 1
                elif self._grid[posY +1][posX - 1] == '.':
                    posY += 1
                    posX -= 1
                elif self._grid[posY +1][posX + 1] == '.':
                    posY += 1
                    posX += 1
                else:
                    self._grid[posY][posX] = 'o'
                    self.sandCount += 1
                    if posY == 0 and posX == 500 - modifier:
                        return
                    break
    
    def expand(self, direction):
        global modifier
        if direction == 'left':
            for i in (range(len(self._grid)-1)):
                self._grid[i].insert(0, '.')
            self._grid[-1].insert(0, '#')
            modifier -= 1
        if direction == 'rigth':
            for i in (range(len(self._grid)-1)):
                self._grid[i].append('.')
            self._grid[-1].append('#')


    def evaluate(self):
        return self.sandCount

with open('input14.txt','r') as f:
    inp = f.read().splitlines(keepends=False)

lines = []

for line in inp:
    lines.append(line.split(' -> '))
for i in range(len(lines)):
    for j in range(len(lines[i])):
        lines[i][j] = tuple(map(int, lines[i][j].split(',')))

maxY = None
modifier = None
maxX = None
for line in lines:
    for point in line:
        if modifier is None or modifier > point[0]:
            modifier = point[0]
        if maxX is None or maxX < point[0]:
            maxX = point[0]
        if maxY is None or maxY < point[1]:
            maxY = point[1]
maxX = maxX - (modifier - 3)
modifier -= 1
maxY += 3

cave = Grid()
cave.printGrid()

for line in lines:
    for j in range(len(line)-1):
        cave.drawRocks(line[j], line[j+1])



print('---------------')
cave.printGrid()

print('---------------')
cave.sand()
cave.printGrid()

print('---------------')
print(cave.evaluate())