update to current Kotlin
This commit is contained in:
Dmitry Jemerov
@@ -1,239 +0,0 @@
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namespace ColossalCave;
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import java.util.*
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import java.io.*
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/*
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fun <T> ArrayList<T>.findAll(predicate: {(T) : Boolean}): ArrayList<T> {
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val result = ArrayList<T>()
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for(val t in this) {
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if (predicate(t)) result.add(t)
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}
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return result
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}
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*/
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fun print(s: String) { System.out?.println(s) }
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namespace World {
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class Thing(val name: String) {
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val ldesc: String get() = "This is a nondescript thing"
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}
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class Room(val name: String): Thing(name) {
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val west: Room? get() = null
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val east: Room? get() = null
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val north: Room? get() = null
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val south: Room? get() = null
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var seen: Boolean = false
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}
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public val items: ArrayList<Item> = ArrayList<Item>()
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class Item(val name: String, var room: Room?): Thing(name) {
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val isFixed: Boolean get() = false
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val isListed: Boolean get() = true
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{
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items.add(this)
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}
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}
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class FixedItem(val name: String, var room: Room?): Item(name, room) {
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val isFixed: Boolean get() = true
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val isListed: Boolean get() = false
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}
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fun describeRoom(room: Room) {
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print(room.name)
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if (!room.seen) {
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print(room.ldesc)
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room.seen = true
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}
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for(val item in items) {
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if (item.room === room && item.isListed) {
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print("You see " + item.name)
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}
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}
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}
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object AtEndOfRoad: Room("At End of Road") {
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val ldesc: String = "You are standing at the end of the road before a small brick building." +
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" Around you is a forest. A small stream flows out of the building and down a gully."
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val west: Room? get() = AtHillInRoad
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val east: Room? get() = InsideBuilding
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val south: Room? get() = InAValley
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}
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object AtHillInRoad: Room("At Hill in Road") {
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val ldesc: String = "You have walked up a hill, still in the forest. The road slopes back down " +
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"the other side of the hill. There is a building in the distance."
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val east: Room? get() = AtEndOfRoad
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}
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val Hill = object: FixedItem("Hill", AtHillInRoad) {
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val ldesc: String = "It's just a typical hill."
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}
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object InsideBuilding: Room("Inside Building") {
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val ldesc: String = "You are inside a building, a well house for a large spring."
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val west: Room? get() = AtEndOfRoad
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}
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object InAValley: Room("In A Valley") {
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val ldesc: String = "You are in a valley in the forest beside a stream tumbling along a rocky bed."
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val north: Room get() = AtEndOfRoad
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val south: Room get() = AtSlitInStreambed
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}
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object AtSlitInStreambed: Room("At Slit In Streambed") {
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val ldesc: String = "At your feet all the water of the stream splashs into a 2-inch slit in the rock." +
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" Downstream the streambed is bare rock."
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val north: Room get() = InAValley
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val south: Room get() = OutsideGrate
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}
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object OutsideGrate: Room("Outside Grate") {
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val ldesc: String = "You are in a 20-foot depression floored with bare dirt. Set into the dirt " +
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"is a strong steel grate mounted in concrete. A dry streambed leads into the depression."
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val north: Room get() = AtSlitInStreambed
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}
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val brassLantern = object: Item("Brass Lantern", InsideBuilding) {
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}
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val setOfKeys = object: Item("A Set of Keys", InsideBuilding) {
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}
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fun startRoom() = AtEndOfRoad
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}
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class Player(var room: World.Room) {
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val inventory: ArrayList<World.Item> = ArrayList<World.Item>()
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}
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class Command {
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abstract fun execute(p: Player): Unit
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}
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object QuitCommand : Command {
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fun execute(p: Player) {
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System.exit(0)
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}
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}
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class MoveCommand: Command {
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fun moveTo(p: Player, room: World.Room?) {
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if (room === null) {
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System.out?.println("You can't go that way")
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return
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}
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p.room = room as World.Room
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World.describeRoom(p.room)
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}
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}
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object NorthCommand: MoveCommand {
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fun execute(p: Player) {
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moveTo(p, p.room.north)
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}
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}
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object SouthCommand: MoveCommand {
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fun execute(p: Player) {
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moveTo(p, p.room.south)
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}
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}
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object WestCommand: MoveCommand {
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fun execute(p: Player) {
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moveTo(p, p.room.west)
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}
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}
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object EastCommand: MoveCommand {
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fun execute(p: Player) {
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moveTo(p, p.room.east)
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}
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}
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class CommandOnObject(val target: String): Command {
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fun execute(p: Player) {
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for(val item in World.items) {
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if (item.name.equalsIgnoreCase(target) && item.room == p.room) {
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executeOn(p, item)
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return
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}
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}
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System.out?.println("I don't see any " + target + " here.")
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}
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fun executeOn(p: Player, item: World.Item)
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}
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class TakeCommand(val target: String): CommandOnObject(target) {
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fun executeOn(p: Player, item: World.Item) {
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if (item.isFixed) {
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print("You can't have " + item.name)
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return
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}
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item.room = null
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p.inventory.add(item)
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System.out?.println("Taken")
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}
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}
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class ExamineCommand(val target: String): CommandOnObject(target) {
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fun executeOn(p: Player, item: World.Item) {
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print(item.ldesc)
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}
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}
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object InventoryCommand: Command {
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fun execute(p: Player) {
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if (p.inventory.size() == 0)
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print("You are empty-handed.")
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else {
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print("You are carrying:")
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for(val item in p.inventory) {
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print(item.name)
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}
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}
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}
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}
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fun parse(cmd: String): Command? {
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if (cmd == "quit") return QuitCommand
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if (cmd == "north") return NorthCommand
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if (cmd == "south") return SouthCommand
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if (cmd == "west") return WestCommand
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if (cmd == "east") return EastCommand
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if (cmd == "inventory") return InventoryCommand
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if (cmd.startsWith("take")) {
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val target = cmd.substring(4).trim()
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return TakeCommand(target)
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}
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if (cmd.startsWith("examine")) {
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val target = cmd.substring(7).trim()
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return ExamineCommand(target)
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}
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return null
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}
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fun main(args: Array<String>) {
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val p = Player(World.startRoom())
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World.describeRoom(p.room)
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val reader = BufferedReader(InputStreamReader(System.`in`))
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while(true) {
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System.out?.print("> ")
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val cmd = reader.readLine() as String
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val command = parse(cmd)
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if (command === null)
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System.out?.println("Unrecognized command");
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else
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command.execute(p)
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}
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}
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@@ -0,0 +1,225 @@
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package ColossalCave
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import java.util.*
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import java.io.*
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open class Thing(val name : String) {
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open val ldesc : String get() = "This is a nondescript thing"
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}
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open class Room(name : String) : Thing(name) {
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open val west : Room? get() = null
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open val east : Room? get() = null
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open val north : Room? get() = null
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open val south : Room? get() = null
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var seen : Boolean = false
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}
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public val items : ArrayList<Item> = ArrayList<Item>()
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open class Item(name : String, var room : Room?) : Thing(name) {
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open val isFixed : Boolean get() = false
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open val isListed : Boolean get() = true
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{
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items.add(this)
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}
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}
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open class FixedItem(name : String, room : Room?) : Item(name, room) {
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override val isFixed : Boolean get() = true
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override val isListed : Boolean get() = false
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}
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fun describeRoom(room : Room) {
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println(room.name)
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if (!room.seen) {
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println(room.ldesc)
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room.seen = true
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}
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for(val item in items) {
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if (item.room === room && item.isListed) {
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println("You see " + item.name)
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}
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}
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}
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object AtEndOfRoad: Room("At End of Road") {
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override val ldesc : String = "You are standing at the end of the road before a small brick building." +
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" Around you is a forest. A small stream flows out of the building and down a gully."
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override val west : Room? get() = AtHillInRoad
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override val east : Room? get() = InsideBuilding
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override val south : Room? get() = InAValley
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}
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object AtHillInRoad: Room("At Hill in Road") {
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override val ldesc : String = "You have walked up a hill, still in the forest. The road slopes back down " +
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"the other side of the hill. There is a building in the distance."
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override val east : Room? get() = AtEndOfRoad
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}
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val Hill = object: FixedItem("Hill", AtHillInRoad) {
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override val ldesc : String = "It's just a typical hill."
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}
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object InsideBuilding: Room("Inside Building") {
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override val ldesc : String = "You are inside a building, a well house for a large spring."
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override val west : Room? get() = AtEndOfRoad
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}
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object InAValley: Room("In A Valley") {
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override val ldesc : String = "You are in a valley in the forest beside a stream tumbling along a rocky bed."
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override val north : Room get() = AtEndOfRoad
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override val south : Room get() = AtSlitInStreambed
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}
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object AtSlitInStreambed: Room("At Slit In Streambed") {
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override val ldesc : String = "At your feet all the water of the stream splashs into a 2-inch slit in the rock." +
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" Downstream the streambed is bare rock."
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override val north : Room get() = InAValley
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override val south : Room get() = OutsideGrate
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}
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object OutsideGrate: Room("Outside Grate") {
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override val ldesc : String = "You are in a 20-foot depression floored with bare dirt. Set into the dirt " +
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"is a strong steel grate mounted in concrete. A dry streambed leads into the depression."
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override val north : Room get() = AtSlitInStreambed
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}
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val brassLantern = object: Item("Brass Lantern", InsideBuilding) {
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}
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val setOfKeys = object: Item("A Set of Keys", InsideBuilding) {
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}
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fun startRoom() = AtEndOfRoad
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class Player(var room : Room) {
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val inventory : ArrayList<Item> = ArrayList<Item>()
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}
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abstract class Command {
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abstract fun execute(p : Player) : Unit
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}
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object QuitCommand : Command() {
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override fun execute(p : Player) {
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System.exit(0)
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}
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}
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abstract class MoveCommand : Command() {
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fun moveTo(p : Player, room : Room?) {
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if (room === null) {
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println("You can't go that way")
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return
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}
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p.room = room as Room
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describeRoom(p.room)
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}
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}
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object NorthCommand: MoveCommand() {
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override fun execute(p : Player) {
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moveTo(p, p.room.north)
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}
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}
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object SouthCommand: MoveCommand() {
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override fun execute(p : Player) {
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moveTo(p, p.room.south)
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}
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}
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object WestCommand: MoveCommand() {
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override fun execute(p : Player) {
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moveTo(p, p.room.west)
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}
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}
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object EastCommand: MoveCommand() {
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override fun execute(p : Player) {
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moveTo(p, p.room.east)
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}
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}
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abstract class CommandOnObject(val target : String) : Command() {
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override fun execute(p : Player) {
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for(val item in items) {
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if (item.name.equalsIgnoreCase(target) && item.room == p.room) {
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executeOn(p, item)
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return
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}
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}
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println("I don't see any " + target + " here.")
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}
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abstract fun executeOn(p : Player, item : Item)
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}
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class TakeCommand(target : String) : CommandOnObject(target) {
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override fun executeOn(p : Player, item : Item) {
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if (item.isFixed) {
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print("You can't have " + item.name)
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return
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}
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item.room = null
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p.inventory.add(item)
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println("Taken")
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}
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}
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class ExamineCommand(target : String) : CommandOnObject(target) {
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override fun executeOn(p : Player, item : Item) {
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println(item.ldesc)
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}
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}
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object InventoryCommand: Command() {
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override fun execute(p : Player) {
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if (p.inventory.size() == 0)
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println("You are empty-handed.")
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else {
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println("You are carrying:")
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for(val item in p.inventory) {
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println(item.name)
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}
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}
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}
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}
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fun parse(cmd : String) : Command? {
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if (cmd == "quit") return QuitCommand
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if (cmd == "north") return NorthCommand
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if (cmd == "south") return SouthCommand
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if (cmd == "west") return WestCommand
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if (cmd == "east") return EastCommand
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if (cmd == "inventory") return InventoryCommand
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if (cmd.startsWith("take")) {
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val target = cmd.substring(4).trim()
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return TakeCommand(target)
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}
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if (cmd.startsWith("examine")) {
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val target = cmd.substring(7).trim()
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return ExamineCommand(target)
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}
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return null
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}
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fun main(args : Array<String>) {
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val p = Player(startRoom())
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describeRoom(p.room)
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val reader = BufferedReader(InputStreamReader(System.`in`))
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while(true) {
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print("> ")
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val cmd = reader.readLine() as String
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val command = parse(cmd)
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if (command === null)
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println("Unrecognized command");
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else
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command.execute(p)
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}
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}
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Reference in New Issue
Block a user