added getter for robot's name to the robot api

larger screens render further than smaller screens now (the max render distance setting applies to 1x1 screens)

src/main/resources/assets/opencomputers/lua/component/robot/lib/robot.lua

@@ -10,6 +10,10 @@ function robot.level()
   return component.robot.level()
 end
 
+function robot.name()
+  return component.robot.name()
+end
+
 -------------------------------------------------------------------------------
 -- World
 

src/main/scala/li/cil/oc/client/renderer/tileentity/ScreenRenderer.scala

@@ -45,7 +45,7 @@ object ScreenRenderer extends TileEntitySpecialRenderer with Callable[Int] with
       return
     }
 
-    val distance = playerDistanceSq()
+    val distance = playerDistanceSq() / math.min(screen.width, screen.height)
     if (distance > maxRenderDistanceSq) {
       return
     }

src/main/scala/li/cil/oc/server/component/robot/Robot.scala

@@ -54,6 +54,9 @@ class Robot(val robot: tileentity.Robot) extends ManagedComponent {
     result(robot.level + xpProgress / xpNeeded)
   }
 
+  @Callback
+  def name(context: Context, args: Arguments): Array[AnyRef] = result(robot.name)
+
   // ----------------------------------------------------------------------- //
 
   @Callback