wires now appear connected in game

src/net/torvald/spriteanimation/SpriteAnimation.kt

@@ -130,7 +130,7 @@ class SpriteAnimation(@Transient val parentActor: ActorWithBody) {
             val region = textureRegion.get(currentFrame, currentRow)
             batch.color = colorFilter
 
-            val scale = parentActor.scale.toFloat()
+            //val scale = parentActor.scale.toFloat() // wtf?
 
             if (flipHorizontal && flipVertical) {
                 batch.draw(region,

src/net/torvald/terrarum/gameactors/WireActor.kt

@@ -1,20 +1,38 @@
 package net.torvald.terrarum.gameactors
 
+import net.torvald.terrarum.AppLoader.printdbg
 import net.torvald.terrarum.CommonResourcePool
+import net.torvald.terrarum.Point2i
+import net.torvald.terrarum.Terrarum
 import net.torvald.terrarum.TerrarumAppConfiguration.TILE_SIZE
 import net.torvald.terrarum.gameitem.ItemID
+import net.torvald.terrarum.gameworld.GameWorld
 
 /**
  * Created by minjaesong on 2021-07-30.
  */
 class WireActor(id: ActorID) : ActorWithBody(RenderOrder.WIRES, PhysProperties.IMMOBILE) {
 
+    companion object {
+        private val nearbyArr = arrayOf(
+                (-1 to 0), // tileL
+                (0 to +1), // tileB
+                (+1 to 0), // tileR
+                (0 to -1) // tileT
+        )
+    }
+
     init {
         referenceID = id
         setHitboxDimension(2, 2, 0, 0)
     }
 
     private var oldWireId = ""
+    private var worldX = 0
+    private var worldY = 0
+
+    private val world: GameWorld
+        get() = Terrarum.ingame!!.world
 
     /**
      * @param itemID must start with "wire@"
@@ -30,14 +48,32 @@ class WireActor(id: ActorID) : ActorWithBody(RenderOrder.WIRES, PhysProperties.I
 
             oldWireId = itemID
         }
+        this.worldX = worldX
+        this.worldY = worldY
         setPosition(worldX * TILE_SIZE + 1.0, (worldY + 1.0) * TILE_SIZE - 1.0) // what the fuck?
+
         sprite!!.currentRow = 1
-        sprite!!.currentFrame = 15
+
+        val nearbyTiles = getNearbyTilesPos(worldX, worldY).map { world.getAllWiresFrom(it.x, it.y) }
+        var ret = 0
+        for (i in nearbyTiles.indices) {
+            if (nearbyTiles[i]?.contains(itemID) == true) {
+                ret += (1 shl i) // add 1, 2, 4, 8 for i = 0, 1, 2, 3
+            }
+        }
+        sprite!!.currentFrame = ret
+    }
+
+    private fun getNearbyTilesPos(x: Int, y: Int): Array<Point2i> {
+        return arrayOf(
+                Point2i(x + 1, y),
+                Point2i(x, y - 1),
+                Point2i(x - 1, y),
+                Point2i(x, y + 1)
+        )
     }
 
     override fun update(delta: Float) {
-        // set autotiling here
-        // hint: manipulate `sprite!!.currentFrame`
 
     }