2020 Day 12 Complete

2020/day12/main.go

@@ -0,0 +1,43 @@
+package main
+
+import (
+	"fmt"
+
+	h "git.bullercodeworks.com/brian/adventofcode/helpers"
+)
+
+const (
+	N = iota
+	E
+	S
+	W
+)
+
+func main() {
+	fmt.Println("# Day 12")
+	inp := h.StdinToStringSlice()
+	part1(inp)
+	part2(inp)
+}
+
+func part1(inp []string) {
+	s := Ship{
+		Pos: h.Coordinate{X: 0, Y: 0},
+		Dir: E,
+	}
+	s.Navigate(inp)
+	fmt.Println("## Part 1")
+	fmt.Println(s.Pos.Distance(h.Coordinate{X: 0, Y: 0}))
+}
+
+func part2(inp []string) {
+	s := Ship{
+		Pos:        h.Coordinate{X: 0, Y: 0},
+		Dir:        E,
+		Waypoint:   h.Coordinate{X: 10, Y: -1},
+		ByWaypoint: true,
+	}
+	s.Navigate(inp)
+	fmt.Println("## Part 2")
+	fmt.Println(s.Pos.Distance(h.Coordinate{X: 0, Y: 0}))
+}