From fab3c08ddb977d49727bc35716108d806a89a3a1 Mon Sep 17 00:00:00 2001
From: Anuken <arnukren@gmail.com>
Date: Sun, 20 Jul 2025 20:05:32 -0400
Subject: [PATCH] Mobile improvements

---
 core/src/mindustry/editor/MapEditorDialog.java |  4 +++-
 core/src/mindustry/editor/MapRenderer.java     | 13 +++++++++----
 core/src/mindustry/editor/MapView.java         |  3 ++-
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/core/src/mindustry/editor/MapEditorDialog.java b/core/src/mindustry/editor/MapEditorDialog.java
index 47e1a979c8..5e617806f4 100644
--- a/core/src/mindustry/editor/MapEditorDialog.java
+++ b/core/src/mindustry/editor/MapEditorDialog.java
@@ -834,7 +834,9 @@ public class MapEditorDialog extends Dialog implements Disposable{
 
             if(i == 0) editor.drawBlock = block;
 
-            if(++i % 6 == 0){
+            int cols = mobile ? 4 : 6;
+
+            if(++i % cols == 0){
                 blockSelection.row();
             }
         }
diff --git a/core/src/mindustry/editor/MapRenderer.java b/core/src/mindustry/editor/MapRenderer.java
index a4b32967ab..311e4c8876 100644
--- a/core/src/mindustry/editor/MapRenderer.java
+++ b/core/src/mindustry/editor/MapRenderer.java
@@ -67,7 +67,10 @@ public class MapRenderer implements Disposable{
 
         Draw.flush();
 
-        renderer.blocks.floor.checkChanges();
+        //don't process terrain updates every frame (helps with lag on low end devices)
+        boolean doUpdate = Core.graphics.getFrameId() % 2 == 0;
+
+        if(doUpdate) renderer.blocks.floor.checkChanges();
 
         boolean prev = renderer.animateWater;
         renderer.animateWater = false;
@@ -84,7 +87,7 @@ public class MapRenderer implements Disposable{
         //scissors are always enabled because this is drawn clipped in UI, make sure they don't interfere with drawing shadow events
         Gl.disable(Gl.scissorTest);
 
-        renderer.blocks.processShadows();
+        if(doUpdate) renderer.blocks.processShadows();
 
         Gl.enable(Gl.scissorTest);
 
@@ -102,8 +105,10 @@ public class MapRenderer implements Disposable{
 
         if(chunks == null) return;
 
-        recacheChunks.each(i -> recacheChunk(Point2.x(i), Point2.y(i)));
-        recacheChunks.clear();
+        if(doUpdate){
+            recacheChunks.each(i -> recacheChunk(Point2.x(i), Point2.y(i)));
+            recacheChunks.clear();
+        }
 
         shader.bind();
         shader.setUniformMatrix4("u_projTrans", Core.camera.mat);
diff --git a/core/src/mindustry/editor/MapView.java b/core/src/mindustry/editor/MapView.java
index 55c40faee4..e030350238 100644
--- a/core/src/mindustry/editor/MapView.java
+++ b/core/src/mindustry/editor/MapView.java
@@ -11,6 +11,7 @@ import arc.scene.*;
 import arc.scene.event.*;
 import arc.scene.ui.layout.*;
 import arc.util.*;
+import mindustry.*;
 import mindustry.graphics.*;
 import mindustry.input.*;
 import mindustry.ui.*;
@@ -18,7 +19,7 @@ import mindustry.ui.*;
 import static mindustry.Vars.*;
 
 public class MapView extends Element implements GestureListener{
-    EditorTool tool = EditorTool.pencil;
+    EditorTool tool = Vars.mobile ? EditorTool.zoom : EditorTool.pencil;
     private float offsetx, offsety;
     private float zoom = 1f;
     private boolean grid = false;