lightning bolt WIP, player sprite declaration macro

Former-commit-id: d4999cda37bff2aa27615183aa125bfbc8cfa975
Former-commit-id: 224aee51d4fb7e5fe9d11bf3c0cc758a5604251d

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

@@ -23,8 +23,8 @@ open class ActorWithBody : Actor(), Visible {
     override var referenceID: Int = generateUniqueReferenceID()
     override var actorValue: ActorValue = ActorValue()
 
-    @Transient var sprite: SpriteAnimation? = null
-    @Transient var spriteGlow: SpriteAnimation? = null
+    @Transient internal var sprite: SpriteAnimation? = null
+    @Transient internal var spriteGlow: SpriteAnimation? = null
 
     @Transient private val world: GameWorld = Terrarum.ingame.world
 
@@ -229,6 +229,16 @@ open class ActorWithBody : Actor(), Visible {
         // some initialiser goes here...
     }
 
+    fun makeNewSprite(w: Int, h: Int) {
+        sprite = SpriteAnimation()
+        sprite!!.setDimension(w, h)
+    }
+
+    fun makeNewSpriteGlow(w: Int, h: Int) {
+        spriteGlow = SpriteAnimation()
+        spriteGlow!!.setDimension(w, h)
+    }
+
     /**
      * @param w
      * @param h
@@ -1016,6 +1026,7 @@ fun Double.roundInt(): Int = Math.round(this).toInt()
 fun Float.roundInt(): Int = Math.round(this).toInt()
 fun Double.abs() = Math.abs(this)
 fun Double.sqr() = this * this
+fun Double.sqrt() = Math.sqrt(this)
 fun Int.abs() = if (this < 0) -this else this
 fun Double.bipolarClamp(limit: Double) =
         if      (this > 0 && this > limit)   limit

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

@@ -17,8 +17,7 @@ object PlayerBuilderCynthia {
         p.actorValue["__selectedtile"] = 16
 
 
-        p.sprite = SpriteAnimation()
-        p.sprite!!.setDimension(26, 42)
+        p.makeNewSprite(26, 42)
         p.sprite!!.setSpriteImage("assets/graphics/sprites/test_player_2.png")
         p.sprite!!.setDelay(200)
         p.sprite!!.setRowsAndFrames(1, 1)

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

@@ -21,15 +21,13 @@ object PlayerBuilderSigrid {
 
         p.referenceID = 0x51621D // the only constant of this procedural universe
 
-        p.sprite = SpriteAnimation()
-        p.sprite!!.setDimension(28, 51)
+        p.makeNewSprite(28, 51)
         p.sprite!!.setSpriteImage("assets/graphics/sprites/test_player.png")
         p.sprite!!.setDelay(200)
         p.sprite!!.setRowsAndFrames(1, 1)
         p.sprite!!.setAsVisible()
 
-        p.spriteGlow = SpriteAnimation()
-        p.spriteGlow!!.setDimension(28, 51)
+        p.makeNewSpriteGlow(28, 51)
         p.spriteGlow!!.setSpriteImage("assets/graphics/sprites/test_player_glow.png")
         p.spriteGlow!!.setDelay(200)
         p.spriteGlow!!.setRowsAndFrames(1, 1)