Map resize dialog shift options

core/src/mindustry/core/World.java

@@ -174,7 +174,7 @@ public class World{
         return x + y * tiles.width;
     }
 
-    private void clearTileEntities(){
+    public void clearBuildings(){
         for(Tile tile : tiles){
             if(tile != null && tile.build != null){
                 tile.build.remove();
@@ -187,7 +187,7 @@ public class World{
      * Only use for loading saves!
      */
     public Tiles resize(int width, int height){
-        clearTileEntities();
+        clearBuildings();
 
         if(tiles.width != width || tiles.height != height){
             tiles = new Tiles(width, height);

core/src/mindustry/editor/MapEditor.java

@@ -284,14 +284,17 @@ public class MapEditor{
         }
     }
 
-    public void resize(int width, int height){
+    public void resize(int width, int height, int shiftX, int shiftY){
         clearOp();
 
         Tiles previous = world.tiles;
-        int offsetX = (width() - width) / 2, offsetY = (height() - height) / 2;
+        int offsetX = (width() - width) / 2 - shiftX, offsetY = (height() - height) / 2 - shiftY;
         loading = true;
 
-        Tiles tiles = world.resize(width, height);
+        world.clearBuildings();
+
+        Tiles tiles = world.tiles = new Tiles(width, height);
+
         for(int x = 0; x < width; x++){
             for(int y = 0; y < height; y++){
                 int px = offsetX + x, py = offsetY + y;

core/src/mindustry/editor/MapEditorDialog.java

@@ -188,10 +188,10 @@ public class MapEditorDialog extends Dialog implements Disposable{
             menu.hide();
         }).padTop(!steam && !experimental ? -3 : 1).size(swidth * 2f + 10, 60f);
 
-        resizeDialog = new MapResizeDialog((x, y) -> {
+        resizeDialog = new MapResizeDialog((width, height, shiftX, shiftY) -> {
-            if(!(editor.width() == x && editor.height() == y)){
+            if(!(editor.width() == width && editor.height() == height && shiftX == 0 && shiftY == 0)){
                 ui.loadAnd(() -> {
-                    editor.resize(x, y);
+                    editor.resize(width, height, shiftX, shiftY);
                 });
             }
         });

core/src/mindustry/editor/MapResizeDialog.java

@@ -1,19 +1,19 @@
 package mindustry.editor;
 
-import arc.func.*;
 import arc.math.*;
 import arc.scene.ui.TextField.*;
 import arc.scene.ui.layout.*;
 import arc.util.*;
 import mindustry.ui.dialogs.*;
+
 import static mindustry.Vars.*;
 
 public class MapResizeDialog extends BaseDialog{
     public static int minSize = 50, maxSize = 600, increment = 50;
 
-    int width, height;
+    int width, height, shiftX, shiftY;
 
-    public MapResizeDialog(Intc2 cons){
+    public MapResizeDialog(ResizeListener cons){
         super("@editor.resizemap");
 
         closeOnBack();
@@ -35,6 +35,19 @@ public class MapResizeDialog extends BaseDialog{
 
                 table.row();
             }
+
+            for(boolean x : Mathf.booleans){
+                table.add(x ? "@editor.shiftx" : "@editor.shifty").padRight(8f);
+                table.defaults().height(60f).padTop(8);
+
+                table.field((x ? shiftX : shiftY) + "", value -> {
+                    int val = Integer.parseInt(value);
+                    if(x) shiftX = val; else shiftY = val;
+                }).valid(Strings::canParseInt).maxTextLength(3);
+
+                table.row();
+            }
+
             cont.row();
             cont.add(table);
 
@@ -43,8 +56,12 @@ public class MapResizeDialog extends BaseDialog{
         buttons.defaults().size(200f, 50f);
         buttons.button("@cancel", this::hide);
         buttons.button("@ok", () -> {
-            cons.get(width, height);
+            cons.get(width, height, shiftX, shiftY);
             hide();
         });
     }
+
+    public interface ResizeListener{
+        void get(int width, int height, int shiftX, int shiftY);
+    }
 }