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Day12

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This commit is contained in:
Karl Spickermann 2020-12-12 16:55:02 +01:00
parent 954538b7bf
commit d9b66adc94
4 changed files with 942 additions and 16 deletions
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41
.idea/workspace.xml
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@ -11,11 +11,8 @@
</component>
<component name="ChangeListManager">
<list default="true" id="400bdf61-8921-41d3-8f98-a0a1b0877f46" name="Default Changelist" comment="">
<change afterPath="$PROJECT_DIR$/day11/day11.go" afterDir="false" />
<change afterPath="$PROJECT_DIR$/day11/day11Test.txt" afterDir="false" />
<change afterPath="$PROJECT_DIR$/day11/day11Test2.txt" afterDir="false" />
<change afterPath="$PROJECT_DIR$/day11/day11Test3.txt" afterDir="false" />
<change afterPath="$PROJECT_DIR$/day11/everythingOccupied.txt" afterDir="false" />
<change afterPath="$PROJECT_DIR$/day12/day12.go" afterDir="false" />
<change afterPath="$PROJECT_DIR$/day12/day12Test.txt" afterDir="false" />
<change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
<change beforePath="$PROJECT_DIR$/helper/helper.go" beforeDir="false" afterPath="$PROJECT_DIR$/helper/helper.go" afterDir="false" />
</list>
@ -58,7 +55,7 @@
<recent name="C:\Users\karls\go\src\AoC2020" />
</key>
</component>
<component name="RunManager" selected="Go Build.go build day11.go">
<component name="RunManager" selected="Go Build.go build day12.go">
<configuration name="go build day10.go" type="GoApplicationRunConfiguration" factoryName="Go Application" nameIsGenerated="true">
<module name="AoC2020" />
<working_directory value="$PROJECT_DIR$/day10" />
@ -79,6 +76,16 @@
<directory value="$PROJECT_DIR$" />
<method v="2" />
</configuration>
<configuration name="go build day12.go" type="GoApplicationRunConfiguration" factoryName="Go Application" temporary="true" nameIsGenerated="true">
<module name="AoC2020" />
<working_directory value="$PROJECT_DIR$/day12" />
<parameters value="day12Input.txt" />
<kind value="FILE" />
<filePath value="$PROJECT_DIR$/day12/day12.go" />
<package value="AoC2020" />
<directory value="$PROJECT_DIR$" />
<method v="2" />
</configuration>
<configuration name="go build day1.go" type="GoApplicationRunConfiguration" factoryName="Go Application" nameIsGenerated="true">
<module name="AoC2020" />
<working_directory value="$PROJECT_DIR$/day1" />
@ -194,9 +201,11 @@
<item itemvalue="Go Build.go build day9.go" />
<item itemvalue="Go Build.go build day10.go" />
<item itemvalue="Go Build.go build day11.go" />
<item itemvalue="Go Build.go build day12.go" />
</list>
<recent_temporary>
<list>
<item itemvalue="Go Build.go build day12.go" />
<item itemvalue="Go Build.go build day1.go" />
</list>
</recent_temporary>
@ -218,11 +227,11 @@
<option name="oldMeFiltersMigrated" value="true" />
</component>
<component name="WindowStateProjectService">
<state x="351" y="0" width="1092" height="1003" key="#com.intellij.execution.impl.EditConfigurationsDialog" timestamp="1607708739295">
<state x="351" y="0" width="1092" height="1027" key="#com.intellij.execution.impl.EditConfigurationsDialog" timestamp="1607788436747">
<screen x="0" y="0" width="1920" height="1040" />
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<state x="351" y="0" width="1092" height="1003" key="#com.intellij.execution.impl.EditConfigurationsDialog/-1920.0.1920.1040/0.0.1920.1040@0.0.1920.1040" timestamp="1607708739295" />
<state x="351" y="0" width="1092" height="1027" key="#com.intellij.execution.impl.EditConfigurationsDialog/-1920.0.1920.1040/0.0.1920.1040@0.0.1920.1040" timestamp="1607788436747" />
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@ -231,26 +240,26 @@
<screen x="0" y="0" width="1920" height="1040" />
</state>
<state x="739" y="287" key="FileChooserDialogImpl/-1920.0.1920.1040/0.0.1920.1040@0.0.1920.1040" timestamp="1607278759015" />
<state width="1877" height="386" key="GridCell.Tab.0.bottom" timestamp="1607708721938">
<state width="1877" height="386" key="GridCell.Tab.0.bottom" timestamp="1607788420906">
<screen x="0" y="0" width="1920" height="1040" />
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<state width="1877" height="386" key="GridCell.Tab.0.bottom/-1920.0.1920.1040/0.0.1920.1040@-1920.0.1920.1040" timestamp="1607708629475" />
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<state width="1877" height="386" key="GridCell.Tab.0.center" timestamp="1607708721938">
<state width="1877" height="386" key="GridCell.Tab.0.bottom/-1920.0.1920.1040/0.0.1920.1040@0.0.1920.1040" timestamp="1607788420906" />
<state width="1877" height="386" key="GridCell.Tab.0.center" timestamp="1607788420906">
<screen x="0" y="0" width="1920" height="1040" />
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<state width="1877" height="386" key="GridCell.Tab.0.center/-1920.0.1920.1040/0.0.1920.1040@-1920.0.1920.1040" timestamp="1607708629474" />
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<state width="1877" height="386" key="GridCell.Tab.0.center/-1920.0.1920.1040/0.0.1920.1040@0.0.1920.1040" timestamp="1607788420906" />
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<state width="1877" height="386" key="GridCell.Tab.0.left/-1920.0.1920.1040/0.0.1920.1040@-1920.0.1920.1040" timestamp="1607708629474" />
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</state>

141
day12/day12.go Normal file
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@ -0,0 +1,141 @@
package main
import (
"AoC2020/helper"
"fmt"
"os"
"strconv"
)
var Pointing rune
func main() {
args := os.Args[1:]
input, err := helper.GetInput(args[0])
if err != nil {
fmt.Println(err)
}
fmt.Printf("%v",input)
runPart2(input)
}
func run(input []string) {
Pointing = 'E'
position := [2]int{0,0}
for _, val := range input {
fmt.Println(val)
position = move(position,val)
fmt.Printf("Positon %v, Direction %v \n", position, string(Pointing))
}
}
func runPart2(input []string) {
positionBoat := [2]int{0,0}
positionWayPoint := [2]int{10,1}
for _, val := range input {
fmt.Println(val)
positionBoat, positionWayPoint = movePart2(positionBoat,positionWayPoint,val)
fmt.Printf("PositonBoat: %v, PositionWaypoint %v \n", positionBoat, positionWayPoint)
}
}
func move(position [2]int, command string) [2]int{
direction := rune(command[0])
distance, _ := strconv.Atoi(command[1:])
if direction == 'L' || direction == 'R' {
Pointing = turnByDegree(Pointing,direction,distance)
return position
}
if direction == 'F'{
newCommand := string(Pointing) + command[1:]
return move(position,newCommand)
}
return moveCompass(position,direction,distance)
}
func movePart2(positionBoat [2]int, positionWayPoint [2]int, command string) ([2]int, [2]int){
direction := rune(command[0])
if direction == 'F'{
distance, _ := strconv.Atoi(command[1:])
var newPositionBoat [2]int
newPositionBoat[0] = positionBoat[0] + distance * positionWayPoint[0]
newPositionBoat[1] = positionBoat[1] + distance * positionWayPoint[1]
positionBoat = newPositionBoat
}else {
newPositionWaypoint := moveWayPoint(positionWayPoint,command)
positionWayPoint = newPositionWaypoint
}
return positionBoat, positionWayPoint
}
func moveCompass(position [2]int, direction rune, distance int) [2]int {
switch direction {
case 'N':return [2]int{position[0], position[1] + distance}
case 'S':return [2]int{position[0], position[1] - distance}
case 'E':return [2]int{position[0] + distance, position[1]}
case 'W':return [2]int{position[0] - distance, position[1]}
}
return position
}
func moveWayPoint(position [2]int, command string) [2]int {
direction := rune(command[0])
distance, _ := strconv.Atoi(command[1:])
if direction == 'L' || direction == 'R' {
return turnWayPoint(position,direction,distance)
}
return moveCompass(position,direction,distance)
}
func turnWayPoint(position [2]int,turn rune, degree int) [2]int {
p0 := position[0]
p1 := position[1]
var newDs = make([]rune,2)
if p0 > 0 {
newDs[0] = turnByDegree('E', turn, degree)
}else {
newDs[0] = turnByDegree('W', turn, degree)
}
if p1 > 0 {
newDs[1] = turnByDegree('N', turn, degree)
}else {
newDs[1] = turnByDegree('S', turn, degree)
}
var newPosition [2]int
for i,val := range newDs {
switch val {
case 'N': newPosition[1] = Abs(position[i])
case 'S': newPosition[1] = -Abs(position[i])
case 'E': newPosition[0] = Abs(position[i])
case 'W': newPosition[0] = -Abs(position[i])
}
}
return newPosition
}
func turnByDegree(pointing rune, turn rune, degree int) rune {
directions := []rune{'N','E','S','W'}
move := degree / 90
if turn == 'L' {
move = -1 * move
}
for i, val := range directions {
if val == pointing {
newDirectionPointer := (i + move) % len(directions)
if newDirectionPointer < 0 {
newDirectionPointer = len(directions) + newDirectionPointer
}
return directions[newDirectionPointer]
}
}
return pointing
}
func Abs(x int) int {
if x < 0 {
return -x
}
return x
}

771
day12/day12Input.txt Normal file
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@ -0,0 +1,771 @@
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R180
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E1
F11
N4
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E4
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E3
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E5
F32
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S2
W5
N2
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L180
W3
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S5
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N5
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E2
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W3
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L270
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5
day12/day12Test.txt Normal file
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@ -0,0 +1,5 @@
F10
N3
F7
R90
F11