still wip modularisation, game somehow boots

src/net/torvald/terrarum/modulebasegame/console/Zoom.kt

@@ -0,0 +1,44 @@
+package net.torvald.terrarum.modulebasegame.console
+
+import net.torvald.terrarum.Terrarum
+import net.torvald.terrarum.console.ConsoleCommand
+import net.torvald.terrarum.console.Echo
+
+/**
+ * Created by minjaesong on 2016-01-25.
+ */
+internal object Zoom : ConsoleCommand {
+    override fun execute(args: Array<String>) {
+        if (args.size == 2) {
+
+            var zoom: Float
+            try {
+                zoom = args[1].toFloat()
+            }
+            catch (e: NumberFormatException) {
+                Echo("Wrong number input.")
+                return
+            }
+
+            if (zoom < Terrarum.ingame!!.ZOOM_MINIMUM) {
+                zoom = Terrarum.ingame!!.ZOOM_MINIMUM
+            }
+            else if (zoom > Terrarum.ingame!!.ZOOM_MAXIMUM) {
+                zoom = Terrarum.ingame!!.ZOOM_MAXIMUM
+            }
+
+            Terrarum.ingame!!.screenZoom = zoom
+
+            System.gc()
+
+            Echo("Set screen zoom to " + zoom.toString())
+        }
+        else {
+            printUsage()
+        }
+    }
+
+    override fun printUsage() {
+        Echo("Usage: zoom [zoom]")
+    }
+}