2019 Day 11 Complete

2019/day11/input

@@ -0,0 +1 @@
+3,8,1005,8,301,1106,0,11,0,0,0,104,1,104,0,3,8,102,-1,8,10,1001,10,1,10,4,10,1008,8,0,10,4,10,1002,8,1,29,1,1103,7,10,3,8,102,-1,8,10,101,1,10,10,4,10,108,1,8,10,4,10,1002,8,1,54,2,103,3,10,2,1008,6,10,1006,0,38,2,1108,7,10,3,8,102,-1,8,10,1001,10,1,10,4,10,108,1,8,10,4,10,1001,8,0,91,3,8,1002,8,-1,10,1001,10,1,10,4,10,1008,8,0,10,4,10,101,0,8,114,3,8,1002,8,-1,10,101,1,10,10,4,10,1008,8,1,10,4,10,1001,8,0,136,3,8,1002,8,-1,10,1001,10,1,10,4,10,1008,8,1,10,4,10,1002,8,1,158,1,1009,0,10,2,1002,18,10,3,8,102,-1,8,10,101,1,10,10,4,10,108,0,8,10,4,10,1002,8,1,187,2,1108,6,10,3,8,1002,8,-1,10,1001,10,1,10,4,10,108,0,8,10,4,10,1002,8,1,213,3,8,1002,8,-1,10,101,1,10,10,4,10,1008,8,1,10,4,10,1001,8,0,236,1,104,10,10,1,1002,20,10,2,1008,9,10,3,8,102,-1,8,10,101,1,10,10,4,10,108,0,8,10,4,10,101,0,8,269,1,102,15,10,1006,0,55,2,1107,15,10,101,1,9,9,1007,9,979,10,1005,10,15,99,109,623,104,0,104,1,21102,1,932700598932,1,21102,318,1,0,1105,1,422,21102,1,937150489384,1,21102,329,1,0,1105,1,422,3,10,104,0,104,1,3,10,104,0,104,0,3,10,104,0,104,1,3,10,104,0,104,1,3,10,104,0,104,0,3,10,104,0,104,1,21101,46325083227,0,1,21102,376,1,0,1106,0,422,21102,3263269927,1,1,21101,387,0,0,1105,1,422,3,10,104,0,104,0,3,10,104,0,104,0,21102,988225102184,1,1,21101,410,0,0,1105,1,422,21101,868410356500,0,1,21102,1,421,0,1106,0,422,99,109,2,21202,-1,1,1,21102,1,40,2,21102,1,453,3,21102,1,443,0,1105,1,486,109,-2,2106,0,0,0,1,0,0,1,109,2,3,10,204,-1,1001,448,449,464,4,0,1001,448,1,448,108,4,448,10,1006,10,480,1102,1,0,448,109,-2,2106,0,0,0,109,4,1201,-1,0,485,1207,-3,0,10,1006,10,503,21101,0,0,-3,22101,0,-3,1,21201,-2,0,2,21102,1,1,3,21101,0,522,0,1105,1,527,109,-4,2106,0,0,109,5,1207,-3,1,10,1006,10,550,2207,-4,-2,10,1006,10,550,22102,1,-4,-4,1105,1,618,21201,-4,0,1,21201,-3,-1,2,21202,-2,2,3,21102,569,1,0,1106,0,527,22101,0,1,-4,21101,0,1,-1,2207,-4,-2,10,1006,10,588,21102,1,0,-1,22202,-2,-1,-2,2107,0,-3,10,1006,10,610,21201,-1,0,1,21101,610,0,0,105,1,485,21202,-2,-1,-2,22201,-4,-2,-4,109,-5,2105,1,0

2019/day11/main.go

@@ -0,0 +1,188 @@
+package main
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strings"
+	"sync"
+	"time"
+
+	intcode "git.bullercodeworks.com/brian/adventofcode/2019/intcode-processor"
+	helpers "git.bullercodeworks.com/brian/adventofcode/helpers"
+)
+
+// Pass the program name and the problem part number in parameters
+// Default: "input", and part 2
+func main() {
+	progFileName := "input"
+	part := 2
+	if len(os.Args) > 1 {
+		progFileName = os.Args[1]
+		if len(os.Args) == 3 {
+			part = helpers.Atoi(os.Args[2])
+		}
+	}
+	dat, err := ioutil.ReadFile(progFileName)
+	if err != nil {
+		fmt.Println("Error reading program file:", err.Error())
+		os.Exit(1)
+	}
+	var prog []int
+	stringDat := strings.TrimSpace(string(dat))
+	for _, v := range strings.Split(stringDat, ",") {
+		prog = append(prog, helpers.Atoi(v))
+	}
+	// Pass the program and the problem part to solve:
+	solve(prog, part)
+}
+
+func solve(inp []int, pt int) {
+	painter := NewPainter()
+	if pt == 2 {
+		painter.Paint(1)
+	}
+	p := intcode.NewProgram(inp)
+	go func() {
+		for {
+			for !p.NeedsInput() {
+				time.Sleep(1)
+			}
+			p.Input(painter.GetPanelColor())
+			for !p.NeedsOutput() {
+				time.Sleep(1)
+			}
+			painter.Paint(p.Output())
+			for !p.NeedsOutput() {
+				time.Sleep(1)
+			}
+			painter.Turn(p.Output())
+			switch p.State() {
+			case intcode.RET_ERR:
+				panic(p.Error())
+			case intcode.RET_DONE:
+				break
+			}
+		}
+	}()
+	res := p.Run()
+	if res == intcode.RET_DONE {
+		fmt.Println("DONE")
+	} else if res == intcode.RET_ERR {
+		fmt.Println("ERROR")
+	}
+	painter.Print()
+	fmt.Println("Painted Panels:", len(painter.panels))
+	fmt.Println("Paint Used:", painter.paintCount)
+}
+
+const (
+	DIR_N = iota
+	DIR_E
+	DIR_S
+	DIR_W
+)
+
+type Painter struct {
+	dir        int
+	loc        helpers.Coordinate
+	panels     map[string]int
+	paintCount int
+	minX, minY int
+	maxX, maxY int
+
+	panelMutex *sync.Mutex
+}
+
+func NewPainter() *Painter {
+	p := Painter{
+		dir:        DIR_N,
+		loc:        helpers.Coordinate{X: 0, Y: 0},
+		panels:     make(map[string]int),
+		panelMutex: &sync.Mutex{},
+	}
+	return &p
+}
+
+func (p *Painter) GetPanelColor() int {
+	if v, ok := p.panels[p.loc.String()]; ok {
+		return v
+	}
+	return 0
+}
+
+func (p *Painter) Paint(color int) {
+	p.panelMutex.Lock()
+	p.panels[p.loc.String()] = color
+	p.paintCount++
+	p.panelMutex.Unlock()
+}
+
+func (p *Painter) Turn(dir int) {
+	if dir == 0 {
+		p.dir--
+	} else {
+		p.dir++
+	}
+	if p.dir == DIR_W+1 {
+		p.dir = DIR_N
+	} else if p.dir == DIR_N-1 {
+		p.dir = DIR_W
+	}
+	// After turning we move forward
+	switch p.dir {
+	case DIR_N:
+		p.loc.Y--
+	case DIR_E:
+		p.loc.X++
+	case DIR_S:
+		p.loc.Y++
+	case DIR_W:
+		p.loc.X--
+	}
+	if p.loc.X < p.minX {
+		p.minX = p.loc.X
+	}
+	if p.loc.X > p.maxX {
+		p.maxX = p.loc.X
+	}
+	if p.loc.Y < p.minY {
+		p.minY = p.loc.Y
+	}
+	if p.loc.Y > p.maxY {
+		p.maxY = p.loc.Y
+	}
+}
+
+func (p *Painter) Print() {
+	for x := p.minX; x <= p.maxX; x++ {
+		for y := p.minY; y <= p.maxY; y++ {
+			c := helpers.Coordinate{x, y}
+			if c.X == p.loc.X && c.Y == p.loc.Y {
+				switch p.dir {
+				case DIR_N:
+					fmt.Print("^")
+				case DIR_E:
+					fmt.Print(">")
+				case DIR_S:
+					fmt.Print("v")
+				case DIR_W:
+					fmt.Print("<")
+				}
+			} else {
+				p.panelMutex.Lock()
+				if v, ok := p.panels[c.String()]; ok {
+					if v == 1 {
+						fmt.Print("#")
+					} else {
+						fmt.Print(".")
+					}
+				} else {
+					fmt.Print(".")
+				}
+				p.panelMutex.Unlock()
+			}
+		}
+		fmt.Println()
+	}
+}