2-1/main.go

@@ -1,95 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"fmt"
-	"os"
-	"strconv"
-	"strings"
-)
-
-type Instruction struct {
-	instr int // forward = 0, up = 1, down = 2
-	value int
-}
-
-func (in *Instruction) execute(x, depth int) (int, int) {
-	switch in.instr {
-	case 0: // Forward
-		x += in.value
-	case 1: // Up
-		depth -= in.value
-	case 2: // Down
-		depth += in.value
-	}
-
-	return x, depth
-}
-
-func newInstruction(str string, val int) Instruction {
-	instr := 0
-
-	switch str {
-	case "forward":
-		instr = 0
-	case "up":
-		instr = 1
-	case "down":
-		instr = 2
-	}
-
-	in := Instruction{
-		instr: instr,
-		value: val,
-	}
-	return in
-}
-
-func parseInstruction(instruction string) (Instruction, error) {
-	instr := strings.Split(instruction, " ")
-	part1 := instr[0]
-	part2, err := strconv.Atoi(instr[1])
-	if err != nil {
-		return Instruction{}, err
-	}
-
-	return newInstruction(part1, part2), nil
-}
-
-func readInput(filename string) ([]Instruction, error) {
-	file, err := os.Open(filename)
-	if err != nil {
-		return nil, err
-	}
-	defer file.Close()
-
-	scanner := bufio.NewScanner(file)
-	instructions := make([]Instruction, 0)
-
-	for scanner.Scan() {
-		in, err := parseInstruction(scanner.Text())
-		if err != nil {
-			return nil, err
-		}
-		instructions = append(instructions, in)
-	}
-
-	return instructions, nil
-}
-
-func main() {
-	ins, err := readInput("input")
-	if err != nil {
-		fmt.Printf("%s", err.Error())
-		return
-	}
-
-	xPos := 0
-	depth := 0
-
-	for i := 0; i < len(ins); i++ {
-		xPos, depth = ins[i].execute(xPos, depth)
-	}
-
-	fmt.Printf("X is now: %d\nDepth is now: %d\nMultiplied is: %d", xPos, depth, (xPos * depth))
-}