actors are now active/dormant depending on the distance to the player, only the active actors are to be updated. Actors outside of the camera (actually a distance to the player) are not rendered

Former-commit-id: 5f80c2ef3592aab5567723087c264e05458e98b3
Former-commit-id: 7714c6f5a6d7a48d4f5adfe8f6990b249bdb80b0

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

@@ -19,6 +19,6 @@ abstract class Actor : Comparable<Actor> {
 
     override fun equals(other: Any?) = referenceID == (other as Actor).referenceID
     override fun hashCode() = referenceID
-    override fun toString() = "ActorID: ${hashCode()}"
+    override fun toString() = "ID: ${hashCode()}"
     override fun compareTo(other: Actor): Int = this.referenceID - other.referenceID
 }

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

@@ -35,7 +35,7 @@ object CollisionSolver {
             }
         }
 
-        // sort list x (will use Timsort with Java SE >= 8, Mergesort otherwise)
+        // sort list x
         collListX.sortBy { it.pos }
 
         // set candidateX