Faster portal detection

TODO

@@ -7,3 +7,4 @@
 * teleport everyone inside the portal, not just the person who closed the door
 * interrupt teleportation if portal is destroyed mid-teleportation
 * save any effects that would be overwritten by teleportation (including to disk!), and put them back when the player opens the door or arrives
+* add portal particles and ambient sounds to the teleporter

src/main/kotlin/net/deliciousreya/minecraftportal/MinecraftPortalPlugin.kt

@@ -31,11 +31,11 @@ class MinecraftPortalPlugin() : JavaPlugin(), Listener
     fun onBlockPlaced(e: BlockPlaceEvent) {
         if (e.block.type in PortalFrame.State.INACTIVE.allValidBlocks) {
             val portalScanResults = findPortalFrameConnectedTo(e.block, PortalFrame.State.INACTIVE)
-            if (portalScanResults.frame != null) {
+            if (portalScanResults != null) {
                 logger.info("found portal frame, creating portal")
-                portalScanResults.frame.color()
+                portalScanResults.color()
-                e.block.world.playSound(portalScanResults.frame.portalCenter, Sound.BLOCK_BEACON_ACTIVATE, 20f, 1f)
+                e.block.world.playSound(portalScanResults.portalCenter, Sound.BLOCK_BEACON_ACTIVATE, 20f, 1f)
-                e.block.world.spawnParticle(Particle.SPELL, portalScanResults.frame.portalCenter, 40)
+                e.block.world.spawnParticle(Particle.SPELL, portalScanResults.portalCenter, 40)
             } else {
                 logger.info("no portal frame found matching placed block, ignoring")
             }
@@ -68,11 +68,6 @@ class MinecraftPortalPlugin() : JavaPlugin(), Listener
         onDestroyedBlock(e.block)
     }
 
-    @EventHandler
-    fun onSpongeAbsorb(e: SpongeAbsorbEvent) {
-        e.blocks.forEach { blockstate -> onDestroyedBlock(blockstate.location.block) }
-    }
-
     @EventHandler
     fun onBlockBreak(e:BlockBreakEvent) {
         onDestroyedBlock(e.block)
@@ -83,11 +78,6 @@ class MinecraftPortalPlugin() : JavaPlugin(), Listener
         onDestroyedBlock(e.block)
     }
 
-    @EventHandler
-    fun onPlayerFillBucket(e: PlayerBucketFillEvent) {
-        onDestroyedBlock(e.blockClicked)
-    }
-
     @EventHandler
     fun onPlayerInteract(e: PlayerInteractEvent) {
         if (e.clickedBlock == null || e.action != Action.RIGHT_CLICK_BLOCK) {
@@ -97,42 +87,39 @@ class MinecraftPortalPlugin() : JavaPlugin(), Listener
         if(block.type !in DOOR_TYPES) {
             return
         }
-        val portalScanResults = findPortalFrameConnectedTo(block, PortalFrame.State.ACTIVE)
+        val portalScanResults = findPortalFrameConnectedTo(block, PortalFrame.State.ACTIVE) ?: return
-        if (portalScanResults.frame == null) {
-            return
-        }
         val door = block.blockData as Door
-
+        if (!portalScanResults.isStandingInPortal(e.player.location)) {
-        if (!portalScanResults.frame.isStandingInPortal(e.player.location)) {
             e.isCancelled = true
             return
         }
-        if (door.isOpen) {
+        if (!door.isOpen) {
-            // door is about to be closed, so drug the player
-            e.player.playSound(e.player.location, Sound.BLOCK_PORTAL_TRIGGER, 20f, 1f)
-            e.player.addPotionEffect(PotionEffect(PotionEffectType.CONFUSION, 200, 10, false, false, false))
-            e.player.addPotionEffect(PotionEffect(PotionEffectType.BLINDNESS, 200, 1, false, false, false))
-            e.player.addPotionEffect(PotionEffect(PotionEffectType.INVISIBILITY, 200, 1, false, false, false))
-        } else {
             // door is about to be opened, so undrug the player
             e.player.stopSound(Sound.BLOCK_PORTAL_TRIGGER)
             e.player.removePotionEffect(PotionEffectType.BLINDNESS)
             e.player.removePotionEffect(PotionEffectType.CONFUSION)
             e.player.removePotionEffect(PotionEffectType.INVISIBILITY)
+        } else {
+            // door is about to be closed, so drug the player
+            e.player.playSound(e.player.location, Sound.BLOCK_PORTAL_TRIGGER, 20f, 1f)
+            e.player.addPotionEffect(PotionEffect(PotionEffectType.CONFUSION, 200, 1, false, false, false))
+            e.player.addPotionEffect(PotionEffect(PotionEffectType.BLINDNESS, 200, 1, false, false, false))
+            e.player.addPotionEffect(PotionEffect(PotionEffectType.INVISIBILITY, 200, 1, false, false, false))
         }
     }
 
     fun onDestroyedBlock(block: Block) {
-        if (block.type in PortalFrame.State.ACTIVE.allValidBlocks) {
+        if (block.type !in PortalFrame.State.ACTIVE.allValidBlocks) {
+            return
+        }
         val portalScanResults = findPortalFrameConnectedTo(block, PortalFrame.State.ACTIVE)
-            if (portalScanResults.frame != null) {
+        if (portalScanResults != null) {
             logger.info("found portal frame matching destroyed block, deactivating")
-                portalScanResults.frame.uncolor()
+            portalScanResults.uncolor()
-                block.world.playSound(portalScanResults.frame.portalCenter, Sound.BLOCK_BEACON_DEACTIVATE, 20f, 1f)
+            block.world.playSound(portalScanResults.portalCenter, Sound.BLOCK_BEACON_DEACTIVATE, 20f, 1f)
-                block.world.spawnParticle(Particle.SMOKE_NORMAL, portalScanResults.frame.portalCenter, 40)
+            block.world.spawnParticle(Particle.SMOKE_NORMAL, portalScanResults.portalCenter, 40)
         } else {
             logger.info("no portal frame found matching destroyed block, ignoring")
         }
     }
-    }
 }

src/main/kotlin/net/deliciousreya/minecraftportal/PortalFrame.kt

@@ -10,6 +10,7 @@ import net.deliciousreya.minecraftportal.extensions.*
 import org.bukkit.Material
 import org.bukkit.Material.*
 import org.bukkit.block.BlockFace
+import org.bukkit.material.Directional
 
 val MINERAL_TYPES: ImmutableMap<Material, Material> = ImmutableMap.Builder<Material, Material>()
     .put(COAL_BLOCK, BLACK_STAINED_GLASS)
@@ -24,129 +25,137 @@ val MINERAL_TYPES: ImmutableMap<Material, Material> = ImmutableMap.Builder<Mater
 
 val DOOR_TYPES: ImmutableSet<Material> = ImmutableSet.of(ACACIA_DOOR, BIRCH_DOOR, DARK_OAK_DOOR, IRON_DOOR, JUNGLE_DOOR, OAK_DOOR, SPRUCE_DOOR)
 
-fun findPortalFrameConnectedTo(block:Block, state:PortalFrame.State): PortalScanResults {
+fun findPortalFrameConnectedTo(block:Block, state:PortalFrame.State): PortalFrame? {
-    var bestScan:PortalScanResults? = null
     when {
         block.type in state.glassBlocks -> for (direction in PortalFrame.EntranceDirection.values()) {
             for (vector in direction.glassOffsets) {
                 val scanResult = checkPortalFrameAt(block.location.subtract(vector), direction, state)
-                if (scanResult.frame != null) {
+                if (scanResult != null) {
                     return scanResult
-                } else if (bestScan == null || scanResult > bestScan) {
-                    bestScan = scanResult
                 }
             }
         }
-        block.type in state.airBlocks -> for (direction in PortalFrame.EntranceDirection.values()) {
+        block.type in state.doorBlocks -> for (direction in PortalFrame.EntranceDirection.values()) {
-            for (vector in direction.airOffsets) {
+            for (vector in direction.doorOffsets) {
                 val scanResult = checkPortalFrameAt(block.location.subtract(vector), direction, state)
-                if (scanResult.frame != null) {
+                if (scanResult != null) {
                     return scanResult
-                } else if (bestScan == null || scanResult > bestScan) {
-                    bestScan = scanResult
                 }
             }
         }
         block.type in state.mineralBlocks -> for (direction in PortalFrame.EntranceDirection.values()) {
             val scanResult = checkPortalFrameAt(block.location.subtract(direction.mineralOffset), direction, state)
-            if (scanResult.frame != null) {
+            if (scanResult != null) {
                 return scanResult
-            } else if (bestScan == null || scanResult > bestScan) {
-                bestScan = scanResult
             }
         }
     }
-    return bestScan!!
+    return null
 }
 
 /** Detects whether there is a portal frame in the given state at the given location, extending in the given direction. */
-fun checkPortalFrameAt(location:Location, direction:PortalFrame.EntranceDirection, state:PortalFrame.State): PortalScanResults {
+fun checkPortalFrameAt(location:Location, direction:PortalFrame.EntranceDirection, state:PortalFrame.State): PortalFrame? {
-    val matches = ImmutableList.Builder<Block>()
+    val mineral = (location + direction.mineralOffset).block
-    val nonmatches = ImmutableList.Builder<Block>()
+    if (mineral.type !in state.mineralBlocks) {
+        return null
+    }
     for (vector in direction.glassOffsets) {
         val block = (location + vector).block
-        (if (block.type in state.glassBlocks) matches else nonmatches).add(block)
+        if (block.type !in state.glassBlocks) {
+            return null
+        }
     }
-    for (vector in direction.airOffsets) {
+    for (vector in direction.doorOffsets) {
         val block = (location + vector).block
-        (if (block.type in state.airBlocks) matches else nonmatches).add(block)
+        if (block.type !in state.doorBlocks || (block.blockData is Directional && (block.blockData as Directional).facing != direction.doorDirection)) {
+            return null
         }
-    val block = (location + direction.mineralOffset).block
-    (if (block.type in state.mineralBlocks) matches else nonmatches).add(block)
-    val nonmatchesBuilt = nonmatches.build()
-    return PortalScanResults(if (nonmatchesBuilt.isEmpty()) {PortalFrame(location, direction)} else {null}, matches.build(), nonmatchesBuilt)
-}
-
-data class PortalScanResults(val frame: PortalFrame?, val matchingBlocks:List<Block>, val nonMatchingBlocks:List<Block>) : Comparable<PortalScanResults> {
-    override fun compareTo(other:PortalScanResults): Int {
-        return matchingBlocks.size - other.matchingBlocks.size
     }
+    return PortalFrame(location, direction)
 }
 
 /** Information about a portal frame. */
-data class PortalFrame(val lowerLeftCorner: Location, val direction: EntranceDirection) {
+data class PortalFrame(val lowerLeftFrontCorner: Location, val direction: EntranceDirection) {
-    val UP = Vector(0, 1, 0)
+    enum class State(val glassBlocks: ImmutableSet<Material>, val doorBlocks: ImmutableSet<Material>, val mineralBlocks: ImmutableSet<Material>) {
-    enum class State(val glassBlocks: ImmutableSet<Material>, val airBlocks: ImmutableSet<Material>, val mineralBlocks: ImmutableSet<Material>) {
         ACTIVE(ImmutableSet.copyOf(MINERAL_TYPES.values), DOOR_TYPES, ImmutableSet.copyOf(MINERAL_TYPES.keys)),
         INACTIVE(ImmutableSet.of(GLASS), DOOR_TYPES, ImmutableSet.copyOf(MINERAL_TYPES.keys));
 
-        val allValidBlocks = ImmutableSet.Builder<Material>().addAll(glassBlocks).addAll(airBlocks).addAll(mineralBlocks).build()
+        val allValidBlocks = ImmutableSet.Builder<Material>().addAll(glassBlocks).addAll(doorBlocks).addAll(mineralBlocks).build()
     }
     /** The direction along which a portal frame extends. */
-    enum class EntranceDirection(toRight: Vector, toBack: Vector, doorDirection: BlockFace) {
+    enum class EntranceDirection(toRight: Vector, toBack: Vector, val doorDirection: BlockFace) {
         NORTH(Vector(1, 0, 0), Vector(0, 0, 1), BlockFace.NORTH),
         SOUTH(Vector(1, 0, 0), Vector(0, 0, -1), BlockFace.SOUTH),
         EAST(Vector(0, 0, 1), Vector(-1, 0, 0), BlockFace.EAST),
         WEST(Vector(0, 0, 1), Vector(1, 0, 0), BlockFace.WEST);
 
         val glassOffsets: ImmutableList<Vector> = ImmutableList.of(
-            Vector(0, 0, 0),
+            // check corners first:
-            Vector(0, 1, 0),
+            // bottom left, front
-            Vector(0, 2, 0),
+            ZERO,
-            Vector(0, 3, 0),
+            // top right, back
-            Vector(0, 3, 0) + toRight,
+            UP * 3 + toBack + toRight * 2,
+            // bottom right, front
             toRight * 2,
-            Vector(0, 1, 0) + toRight * 2,
+            // top right, front
-            Vector(0, 2, 0) + toRight * 2,
+            UP * 3 + toRight * 2,
-            Vector(0, 3, 0) + toRight * 2,
+            // top left, front
-            Vector(0, 0, 0) + toBack,
+            UP * 3,
-            Vector(0, 1, 0) + toBack,
+            // bottom left, back
-            Vector(0, 2, 0) + toBack,
+            toBack,
-            Vector(0, 3, 0) + toBack,
+            // top left, back
-            Vector(0, 0, 0) + toBack + toRight,
+            UP * 3 + toBack,
-            Vector(0, 1, 0) + toBack + toRight,
+            // bottom right, back
-            Vector(0, 2, 0) + toBack + toRight,
+            toBack + toRight * 2,
-            Vector(0, 3, 0) + toBack + toRight,
+
-            Vector(0, 0, 0) + toBack + toRight * 2,
+            // then do front walls
-            Vector(0, 1, 0) + toBack + toRight * 2,
+            // left front wall
-            Vector(0, 2, 0) + toBack + toRight * 2,
+            UP,
-            Vector(0, 3, 0) + toBack + toRight * 2
+            UP * 2,
+            // top front wall
+            UP * 3 + toRight,
+            // right front wall
+            UP + toRight * 2,
+            UP * 2 + toRight * 2,
+
+            // now do the rest of the back
+            // left back wall
+            UP + toBack,
+            UP * 2 + toBack,
+            // center back wall
+            toBack + toRight,
+            UP + toBack + toRight,
+            UP * 2 + toBack + toRight,
+            UP * 3 + toBack + toRight,
+            // right back wall
+            UP + toBack + toRight * 2,
+            UP * 2 + toBack + toRight * 2
         )
 
         val mineralOffset: Vector = toRight
 
-        val airOffsets: ImmutableList<Vector> = ImmutableList.of(
+        val doorOffsets: ImmutableList<Vector> = ImmutableList.of(
             Vector(0, 1, 0) + toRight,
             Vector(0, 2, 0) + toRight
         )
     }
 
-    val portalCenter = lowerLeftCorner + direction.airOffsets[0]
+    val portalCenter = lowerLeftFrontCorner + direction.doorOffsets[0]
 
     fun isStandingInPortal(location: Location): Boolean {
-        return direction.airOffsets.any { offset -> location.block.location - offset == lowerLeftCorner }
+        return direction.doorOffsets.any { offset -> location.block.location - offset == lowerLeftFrontCorner }
     }
 
     fun color() {
-        val mineral = (lowerLeftCorner + direction.mineralOffset).block
+        val mineral = (lowerLeftFrontCorner + direction.mineralOffset).block
         for (offset in direction.glassOffsets) {
-            (lowerLeftCorner + offset).block.type = MINERAL_TYPES.getOrDefault(mineral.type, BROWN_STAINED_GLASS)
+            (lowerLeftFrontCorner + offset).block.type = MINERAL_TYPES.getOrDefault(mineral.type, BROWN_STAINED_GLASS)
         }
     }
 
     fun uncolor() {
         for (offset in direction.glassOffsets) {
-            (lowerLeftCorner + offset).block.type = GLASS
+            (lowerLeftFrontCorner + offset).block.type = GLASS
         }
     }
 }

src/main/kotlin/net/deliciousreya/minecraftportal/extensions/Vector.kt

@@ -2,6 +2,9 @@ package net.deliciousreya.minecraftportal.extensions
 
 import org.bukkit.util.Vector
 
+val ZERO = Vector(0, 0, 0)
+val UP = Vector(0, 1, 0)
+
 operator fun Vector.plus(v:Vector):Vector {
     return this.clone().add(v)
 }