in preparation of new demoworld creation for future version

src/net/torvald/terrarum/blockproperties/Block.kt

@@ -6,6 +6,7 @@ package net.torvald.terrarum.blockproperties
 object Block {
 
     const val AIR = "basegame:0" // hard coded; this is the standard
+    const val UPDATE = "basegame:1" // hard coded
 
     const val STONE = "basegame:16"
     const val STONE_QUARRIED = "basegame:17"

src/net/torvald/terrarum/blockproperties/BlockProp.kt

@@ -22,7 +22,7 @@ class BlockProp {
     var shadeColB = 0f
     var shadeColA = 0f
 
-    lateinit var opacity: Cvec
+    var opacity = Cvec()
 
     fun getOpacity(channel: Int) = when (channel) {
         0 -> shadeColR