shorter share code if allowed; flickering teleporter beams

src/net/torvald/spriteanimation/SpriteAnimation.kt

@@ -34,6 +34,10 @@ abstract class SpriteAnimation(@Transient val parentActor: ActorWithBody) : Disp
 
 /**
  * This class should not be serialised; save its Animation Description Language instead.
+ *
+ * Maximum rows: 64
+ *
+ * Maximum frames: unlimited
  */
 class SheetSpriteAnimation(parentActor: ActorWithBody) : SpriteAnimation(parentActor) {
 

src/net/torvald/terrarum/modulebasegame/gameactors/FixtureWorldPortal.kt

@@ -1,6 +1,8 @@
 package net.torvald.terrarum.modulebasegame.gameactors
 
+import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import net.torvald.random.XXHash64
+import net.torvald.spriteanimation.SheetSpriteAnimation
 import net.torvald.terrarum.*
 import net.torvald.terrarum.App.printdbg
 import net.torvald.terrarum.gameactors.AVKey
@@ -48,7 +50,7 @@ class FixtureWorldPortal : Electric {
         density = 2900.0
         setHitboxDimension(80, 32, 0, 0)
         makeNewSprite(TextureRegionPack(itemImage.texture, 80, 32)).let {
-            it.setRowsAndFrames(1,1)
+            it.setRowsAndFrames(1,3)
         }
 
         actorValue[AVKey.BASEMASS] = FixtureLogicSignalEmitter.MASS
@@ -58,8 +60,9 @@ class FixtureWorldPortal : Electric {
 
     @Transient internal var teleportRequest: TeleportRequest? = null
 
-    override fun update(delta: Float) {
-        super.update(delta)
+    override fun drawBody(batch: SpriteBatch) {
+        (sprite as SheetSpriteAnimation).currentFrame = (Math.random() * 3).toInt()
+        super.drawBody(batch)
     }
 
     override fun onRisingEdge(readFrom: BlockBoxIndex) {

src/net/torvald/terrarum/modulebasegame/ui/UIShare.kt

@@ -7,7 +7,9 @@ import net.torvald.terrarum.App
 import net.torvald.terrarum.INGAME
 import net.torvald.terrarum.imagefont.BigAlphNum
 import net.torvald.terrarum.langpack.Lang
+import net.torvald.terrarum.serialise.Common
 import net.torvald.terrarum.serialise.toBig64
+import net.torvald.terrarum.serialise.toUint
 import net.torvald.terrarum.ui.Toolkit
 import net.torvald.terrarum.ui.UICanvas
 import net.torvald.terrarum.utils.PasswordBase32
@@ -28,15 +30,9 @@ class UIShare : UICanvas() {
     }
 
     private var shareCode = ""
-    private var dash = ' '
 
     override fun show() {
-        shareCode = PasswordBase32.encode(
-            INGAME.world.worldIndex.mostSignificantBits.toBig64() +
-                    INGAME.world.worldIndex.leastSignificantBits.toBig64()
-        ).let {
-            "${it.substring(0..3)}$dash${it.substring(4..5)}$dash${it.substring(6..10)}$dash${it.substring(11..15)}$dash${it.substring(16..20)}$dash${it.substring(21)}"
-        }
+        shareCode = Common.encodeUUID(INGAME.world.worldIndex)
 
         App.printdbg(this, shareCode)
         App.printdbg(this, INGAME.world.worldIndex)

src/net/torvald/terrarum/modulebasegame/ui/UIWorldPortalShare.kt

@@ -9,6 +9,7 @@ import net.torvald.terrarum.INGAME
 import net.torvald.terrarum.gamecontroller.TerrarumKeyboardEvent
 import net.torvald.terrarum.imagefont.BigAlphNum
 import net.torvald.terrarum.langpack.Lang
+import net.torvald.terrarum.serialise.Common
 import net.torvald.terrarum.serialise.toBig64
 import net.torvald.terrarum.ui.Toolkit
 import net.torvald.terrarum.ui.UICanvas
@@ -47,15 +48,10 @@ class UIWorldPortalShare(private val full: UIWorldPortal) : UICanvas() {
     }
 
     private var shareCode = ""
-    private var dash = ' '
 
     override fun show() {
-        shareCode = PasswordBase32.encode(
-            INGAME.world.worldIndex.mostSignificantBits.toBig64() +
-                    INGAME.world.worldIndex.leastSignificantBits.toBig64()
-        ).let {
-            "${it.substring(0..3)}$dash${it.substring(4..5)}$dash${it.substring(6..10)}$dash${it.substring(11..15)}$dash${it.substring(16..20)}$dash${it.substring(21)}"
-        }
+        shareCode = Common.encodeUUID(INGAME.world.worldIndex)
+
 
         printdbg(this, shareCode)
 

src/net/torvald/terrarum/modulebasegame/ui/UIWorldPortalUseInvitation.kt

@@ -9,6 +9,7 @@ import net.torvald.terrarum.gamecontroller.TerrarumKeyboardEvent
 import net.torvald.terrarum.langpack.Lang
 import net.torvald.terrarum.printStackTrace
 import net.torvald.terrarum.savegame.VirtualDisk
+import net.torvald.terrarum.serialise.Common
 import net.torvald.terrarum.serialise.toBigInt64
 import net.torvald.terrarum.ui.*
 import net.torvald.terrarum.utils.PasswordBase32
@@ -68,10 +69,7 @@ class UIWorldPortalUseInvitation(val full: UIWorldPortal) : UICanvas() {
         { Lang["MENU_LABEL_CONFIRM_BUTTON"] }, buttonBaseX + (goButtonWidth + gridGap) * 2, buttonY, goButtonWidth, alignment = UIItemTextButton.Companion.Alignment.CENTRE, hasBorder = true).also {
 
         it.clickOnceListener = { _, _ ->
-            val code = codeInput.getText().replace(" ", "")
-            val uuid = PasswordBase32.decode(code, 16).let {
-                UUID(it.toBigInt64(0), it.toBigInt64(8))
-            }
+            val uuid = Common.decodeToUUID(codeInput.getText())
             val world = App.savegameWorlds[uuid]
 
             App.printdbg(this, "Decoded UUID=$uuid")

src/net/torvald/terrarum/serialise/Common.kt

@@ -503,6 +503,70 @@ object Common {
         return ByteArray64Reader(strToBytes(StringReader(s)), CHARSET).readText()
     }
 
+    fun encodeUUID(uuid: UUID): String {
+        val dash = ' '
+        val useShort = (uuid.mostSignificantBits.and(0xF000L) == 0x4000L && uuid.leastSignificantBits.ushr(62) == 0b10L)
+
+        /*(uuid.mostSignificantBits.toBig64() + uuid.leastSignificantBits.toBig64()).forEach {
+            print("${it.toUint().toString(2).padStart(8,'0')} ")
+        }
+        println()*/
+
+        val bytes = if (useShort) {
+            (uuid.mostSignificantBits.toBig64() +
+                    uuid.leastSignificantBits.toBig64()).let {
+                it.sliceArray(0..5) +
+                        (it[6].toUint().and(15).shl(4) or it[8].toUint().and(0x0F)).toByte() +
+                        it[7] +
+                        it.sliceArray(9..15) +
+                        (it[8].toUint().and(0x30).shl(2)).toByte()
+            }
+        }
+        else {
+            uuid.mostSignificantBits.toBig64() +
+                    uuid.leastSignificantBits.toBig64()
+        }
+
+        /*bytes.forEach {
+            print("${it.toUint().toString(2).padStart(8,'0')} ")
+        }
+        println()*/
+
+        return PasswordBase32.encode(bytes).let {
+            if (useShort)
+                "${it.substring(0..4)} ${it.substring(5..9)} ${it.substring(10..14)} ${it.substring(15..19)} ${it.substring(20..24)}"
+            else
+                "${it.substring(0..3)}$dash${it.substring(4..5)}$dash${it.substring(6..10)}$dash${it.substring(11..15)}$dash${it.substring(16..20)}$dash${it.substring(21)}"
+        }
+    }
+
+    fun decodeToUUID(str: String): UUID {
+        val code = str.replace(" ", "").trim()
+        val b = PasswordBase32.decode(code + (if (code.length == 25) "Y" else ""), 16)
+
+        /*b.forEach {
+            print("${it.toUint().toString(2).padStart(8,'0')} ")
+        }
+        println()*/
+
+        val bytes = if (code.length == 25) {
+            val b6 = b[6].toUint()
+            val jh = b[15].toUint().ushr(2) // 0b JJ00 0000 -> 0b 00JJ 0000
+            b.sliceArray(0..5) +
+            (b6.and(0xF0).ushr(4) or 0x40).toByte() +
+            b[7] +
+            (b6.and(0x0F) or jh or 0x80).toByte() +
+            b.sliceArray(8..14)
+        }
+        else b
+
+        /*bytes.forEach {
+            print("${it.toUint().toString(2).padStart(8,'0')} ")
+        }
+        println()*/
+
+        return UUID(bytes.toBigInt64(0), bytes.toBigInt64(8))
+    }
 }
 
 class SaveLoadError(file: File?, cause: Throwable) : RuntimeException("An error occured while loading save file '${file?.absolutePath}'", cause)