Pause menu reachable after very much pain

src/main/kotlin/group/ouroboros/potrogue/entity/systems/InputReceiver.kt

@@ -8,10 +8,9 @@ import org.hexworks.amethyst.api.entity.Entity
 import org.hexworks.amethyst.api.entity.EntityType
 import org.hexworks.zircon.api.uievent.KeyCode
 import org.hexworks.zircon.api.uievent.KeyboardEvent
-import kotlin.system.exitProcess
 
 // InputReceiver is pretty simple, it just checks for WASD, and acts accordingly
-object InputReceiver  : BaseBehavior<GameContext>() {
+object InputReceiver : BaseBehavior<GameContext>() {
 
     override suspend fun update(entity: Entity<EntityType, GameContext>, context: GameContext): Boolean {
         // We destructure our context object so its properties are easy to access.
@@ -20,6 +19,7 @@ object InputReceiver  : BaseBehavior<GameContext>() {
         val currentPos = player.position
         // We only want KeyboardEvents for now so we check with the is operator.
         // This is similar as the instanceof operator in Java but a bit more useful.
+
         if (uiEvent is KeyboardEvent) {
             // We use when which is similar to switch in Java to check which key was pressed.
             // Zircon has a KeyCode for all keys which can be pressed. when in Kotlin is also an expression,
@@ -30,8 +30,6 @@ object InputReceiver  : BaseBehavior<GameContext>() {
                 KeyCode.KEY_A -> currentPos.withRelativeX(-1)
                 KeyCode.KEY_S -> currentPos.withRelativeY(1)
                 KeyCode.KEY_D -> currentPos.withRelativeX(1)
-
-                KeyCode.ESCAPE -> exitProcess(0)
                 else -> {
                     // If some key is pressed other than WASD, then we just return the current position, so no movement will happen
                     currentPos

src/main/kotlin/group/ouroboros/potrogue/view/PauseView.kt

@@ -8,7 +8,7 @@ import org.hexworks.zircon.api.component.ComponentAlignment
 import org.hexworks.zircon.api.grid.TileGrid
 import org.hexworks.zircon.api.view.base.BaseView
 
-class PauseView   (private val grid: TileGrid, theme: ColorTheme = GameConfig.THEME) : BaseView(grid, theme) {
+class PauseView(public val grid: TileGrid, theme: ColorTheme = GameConfig.THEME) : BaseView(grid, theme) {
     init {
         val msg = "Pre-Game Configuration"
 

src/main/kotlin/group/ouroboros/potrogue/view/PlayView.kt

@@ -13,8 +13,7 @@ import org.hexworks.zircon.api.component.ColorTheme
 import org.hexworks.zircon.api.component.ComponentAlignment
 import org.hexworks.zircon.api.game.ProjectionMode
 import org.hexworks.zircon.api.grid.TileGrid
-import org.hexworks.zircon.api.uievent.KeyboardEventType
+import org.hexworks.zircon.api.uievent.*
-import org.hexworks.zircon.api.uievent.Processed
 import org.hexworks.zircon.api.view.base.BaseView
 import org.hexworks.zircon.internal.game.impl.GameAreaComponentRenderer
 
@@ -50,10 +49,23 @@ class PlayView (private val grid: TileGrid, private val game: Game = GameBuilder
         screen.addComponents(sidebar, logArea, gameComponent)
 
         // modify our PlayView to update our world whenever the user presses a key
-        screen.handleKeyboardEvents(KeyboardEventType.KEY_PRESSED) {event, _ ->
+        screen.handleKeyboardEvents(KeyboardEventType.KEY_PRESSED) { event, _ ->
             game.world.update(screen, event, game)
             Processed
         }
 
+        grid.handleKeyboardEvents(KeyboardEventType.KEY_PRESSED) label@{ event: KeyboardEvent, phase: UIEventPhase? ->
+            // we filter for KeyCode.ESCAPE only
+            if (event.code == KeyCode.ESCAPE) {
+                // only prints it when we press Arrow Up
+                replaceWith(PauseView(grid))
+                return@label UIEventResponse.processed()
+            } else {
+                // otherwise we just pass on it
+                return@label UIEventResponse.pass() // we didn't handle it so we pass on the event
+            }
+        }
+
+
     }
 }