From eaf6a9de35b3f97fc203a804101ea82b0b36156b Mon Sep 17 00:00:00 2001 From: Brett Parker Date: Thu, 10 Dec 2020 03:10:05 +0000 Subject: [PATCH] And lo, we have completed day13 (it took a while for blockbuster to run - it did at least look "pretty" though! --- day13/summary.txt | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 day13/summary.txt diff --git a/day13/summary.txt b/day13/summary.txt new file mode 100644 index 0000000..9b2d77d --- /dev/null +++ b/day13/summary.txt @@ -0,0 +1,39 @@ +--- Day 13: Care Package --- +As you ponder the solitude of space and the ever-increasing three-hour roundtrip for messages between you and Earth, you notice that the Space Mail Indicator Light is blinking. To help keep you sane, the Elves have sent you a care package. + +It's a new game for the ship's arcade cabinet! Unfortunately, the arcade is all the way on the other end of the ship. Surely, it won't be hard to build your own - the care package even comes with schematics. + +The arcade cabinet runs Intcode software like the game the Elves sent (your puzzle input). It has a primitive screen capable of drawing square tiles on a grid. The software draws tiles to the screen with output instructions: every three output instructions specify the x position (distance from the left), y position (distance from the top), and tile id. The tile id is interpreted as follows: + +0 is an empty tile. No game object appears in this tile. +1 is a wall tile. Walls are indestructible barriers. +2 is a block tile. Blocks can be broken by the ball. +3 is a horizontal paddle tile. The paddle is indestructible. +4 is a ball tile. The ball moves diagonally and bounces off objects. +For example, a sequence of output values like 1,2,3,6,5,4 would draw a horizontal paddle tile (1 tile from the left and 2 tiles from the top) and a ball tile (6 tiles from the left and 5 tiles from the top). + +Start the game. How many block tiles are on the screen when the game exits? + +Your puzzle answer was 318. + +--- Part Two --- +The game didn't run because you didn't put in any quarters. Unfortunately, you did not bring any quarters. Memory address 0 represents the number of quarters that have been inserted; set it to 2 to play for free. + +The arcade cabinet has a joystick that can move left and right. The software reads the position of the joystick with input instructions: + +If the joystick is in the neutral position, provide 0. +If the joystick is tilted to the left, provide -1. +If the joystick is tilted to the right, provide 1. +The arcade cabinet also has a segment display capable of showing a single number that represents the player's current score. When three output instructions specify X=-1, Y=0, the third output instruction is not a tile; the value instead specifies the new score to show in the segment display. For example, a sequence of output values like -1,0,12345 would show 12345 as the player's current score. + +Beat the game by breaking all the blocks. What is your score after the last block is broken? + +Your puzzle answer was 16309. + +Both parts of this puzzle are complete! They provide two gold stars: ** + +At this point, you should return to your Advent calendar and try another puzzle. + +If you still want to see it, you can get your puzzle input. + +You can also [Share] this puzzle. -- 2.39.5