Finish map editor core functionality

core/src/io/anuke/mindustry/ui/BorderImage.java

@@ -1,6 +1,7 @@
 package io.anuke.mindustry.ui;
 
 import com.badlogic.gdx.graphics.Colors;
+import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.Batch;
 
 import io.anuke.ucore.core.Draw;
@@ -8,6 +9,18 @@ import io.anuke.ucore.scene.ui.Image;
 import io.anuke.ucore.scene.ui.layout.Unit;
 
 public class BorderImage extends Image{
+	private float thickness = 3f;
+	
+	public BorderImage(){}
+	
+	public BorderImage(Texture texture){
+		super(texture);
+	}
+	
+	public BorderImage(Texture texture, float thick){
+		super(texture);
+		thickness = thick;
+	}
 	
 	@Override
 	public void draw(Batch batch, float alpha){
@@ -17,7 +30,7 @@ public class BorderImage extends Image{
 		float scaleY = getScaleY();
 		
 		Draw.color(Colors.get("accent"));
-		Draw.thick(Unit.dp.inPixels(3f));
+		Draw.thick(Unit.dp.inPixels(thickness));
 		Draw.linerect(x + imageX, y + imageY, imageWidth * scaleX, imageHeight * scaleY);
 		Draw.reset();
 	}

core/src/io/anuke/mindustry/ui/LevelDialog.java

@@ -23,11 +23,16 @@ public class LevelDialog extends FloatingDialog{
 		super("Level Select");
 		getTitleTable().getCell(title()).growX().center();
 		getTitleTable().center();
+		addCloseButton();
+		setup();
+	}
+	
+	public void reload(){
+		content().clear();
 		setup();
 	}
 	
 	void setup(){
-		addCloseButton();
 		Table maps = new Table();
 		ScrollPane pane = new ScrollPane(maps);
 		pane.setFadeScrollBars(false);