advent-of-code/2022/python/day10.py

import shared
from anim import Animate
import matrix

cycles = {
    "noop": 1,
    "addx": 2,
}


def part1(x):
    X = 1
    cycle_count = 0
    signal_strength = []
    for step, instruction in enumerate(x):
        val = None
        if instruction.startswith("addx"):
            opcode, val = instruction.split(" ")
            val = int(val)
        else:
            opcode = instruction

        for x in range(cycles[opcode]):
            cycle_count += 1

            if cycle_count == 20 or ((cycle_count - 20) % 40 == 0):
                signal_strength.append(cycle_count * X)

        if opcode == "addx":
            X += val
    print(sum(signal_strength))


def part2(x):
    def cycle_to_xy(cycle):
        x = cycle % 40
        y = cycle // 40
        return x, y

    screen = matrix.matrix_of_size(40, 6)
    X = 1
    cycle_count = 0
    for step, instruction in enumerate(x):
        val = None
        if instruction.startswith("addx"):
            opcode, val = instruction.split(" ")
            val = int(val)
        else:
            opcode = instruction

        for x in range(cycles[opcode]):
            _x, y = cycle_to_xy(cycle_count)
            criteria = (X - 1, X, X + 1)
            cycle_count += 1
            if _x in criteria:
                screen[y][_x] = 1

        if opcode == "addx":
            X += val

    matrix.ppmx(screen, pad=False, space=False)
    anim = Animate(screen, day="10")
    anim.add_frame(screen)
    print("wrote gif-10/day10.gif")


def main():
    rows = [row for row in shared.load(10)]
    part1(rows)
    print("%" * 40)
    part2(rows)


if __name__ == "__main__":
    main()