advent-of-code/2022/python/day17.py

import matrix
import shared
from dataclasses import dataclass
from typing import Tuple
import operator


# ####
FLAT = ((0,0),(0,1),(0,2),(0,3))
# .#.
# ###
# .#.
CROSS = (
        (-2,1),
        (-1,0),(-1,1),(-1,2),
        (0,1))
# ..#
# ..#
# ###
J = ( (-2,2),
      (-1,2),
      (0,0),(0,1),(0,2))
# #
# #
# #
# #
I = ((0,0),(-1,0),(-2,0),(-3,0))
# ##
# ##
SQUARE = (
    (-1,0),(-1,1),
    (0,0),(0,1),
)

ORDER = (('-',FLAT), ('+',CROSS), ('j',J), ('I',I), ('□',SQUARE))

OPS = {'>':operator.add, '<':operator.sub}


@dataclass
class Shape:
    rock:int
    y:int
    x:int
    shape: Tuple[str,Tuple[Tuple[int,int]]] # ('j', ((0,0),....))
    moving: bool = True

    @property
    def char(self):
        if self.moving:
            return '@'
        return '#'

    @property
    def str(self):
        return self.shape[0]

    @property
    def offsets(self):
        return self.shape[1]

    @property
    def coords(self):
        actual_coords = []
        for y,x in self.shape[1]:
            actual_coords.append((y+self.y,x+self.x))
        return actual_coords


# TODO: check left/right movement into an object


def find_highest(shapes, default_height):
    if not shapes:
        return default_height
    all_y = []
    for s in shapes:
        for y,_ in s.coords:
            all_y.append(y)
    return min(all_y)

def all_coords(shapes):
    coords = set()
    for s in shapes:
        for c in s.coords:
            coords.add(c)
    return coords

def collision_at(shapes, row, col, shape):
    if shape is None:
        raise Exception("Please provide a list of coordinate offsets from Y,X to draw")

    # Take in all existing coordinates
    for y,x in shape.coords:
        if (y+row,x+col) in all_coords(shapes[:-1]):
            breakpoint()
            return True
    return False

def out_of_bounds(row, col, height, width, shape=None):
    if shape is None:
        raise Exception("Please provide a list of coordinate offsets from Y,X to draw")
    for y,x in shape:
        #print(f"\t{row}+{y} > {height}\t", f"{col}+{x} > {width}\t", f"{col}+{x} < 0")
        if row+y > height-1:
            return True
        if col+x >= width:
            return True
        if col+x < 0:
            return True
    return False




# @shared.profile
def part1(rows):
    print(rows)
    instructions = [r for r in rows]
    height = 8 
    #height = 2022*4+4
    width = 7
    view = height - 20

    rock = 0
    shapes = []
    spawning = True
    while rock < 2:
        if spawning:
            print("Spawn rock #", rock)
            X = 2
            Y = find_highest(shapes, height)  - 4
            shape = Shape(rock=rock, y=Y, x=X, shape=ORDER[rock%len(ORDER)])
            shapes.append(shape)
            spawning = False
        render(width, height, shapes)
        print("~"*20)


        # loop through instructions
        try:
            next_move = instructions.pop(0)
        except IndexError:
            instructions = [r for r in rows]
            next_move = instructions.pop(0)


        # Try to move right/left
        print("Jet of gas pushes rock", next_move)

        # TODO: make COLLISION_AT TAKE AN OFFSET
        next_x = OPS[next_move](shapes[-1].x, 1) # Try Move left or right
        if not out_of_bounds(shapes[-1].y, next_x, height, width, shapes[-1].offsets) and
            not collision_at(shapes, shapes[-1].y, next_x, shape):
                shapes[-1].x = next_x
        else:
            print("but nothing happens")

        # check if hit bottom
        next_y = shapes[-1].y + 1
        if out_of_bounds(next_y, next_x, height, width, shapes[-1].offsets):
            print("rock comes to rest")
            # hit bottom dont move down
            shapes[-1].moving = False
            spawning = True
            rock += 1

        if collision_at(shapes, next_y, next_x, shape):
            # Hit another Block dont move down
            shapes[-1].moving = False
            spawning = True
            rock += 1
        else:
            # can move down
            shapes[-1].y += 1
            print("rock falls one unit")

    print("-"*15)
    render(width, height, shapes)

    print(shapes[0], height, shapes[0].coords)

    print("LAST ROCK COUNT", rock+1)
    print(height - find_highest(shapes, height))
    

def render(width, height, shapes):
    print("-"*15)
    mx = matrix.matrix_of_size(width, height)
    for s in shapes:
        matrix.draw_shape_at(mx, s.y, s.x, s.offsets, s.char)
    print(matrix.ppmx(mx,pad=False,space=False))



# @shared.profile
def part2(rows):
    pass


def main():
    rows = [row for row in shared.load_rows(17)][0]
    with shared.elapsed_timer() as elapsed:
        part1(rows)
        print("🕒", elapsed())
    with shared.elapsed_timer() as elapsed:
        part2(rows)
        print("🕒", elapsed())


if __name__ == "__main__":
    main()