From 59c3b18a6f53edffbb3422c646ac6e0d3bf3dbf1 Mon Sep 17 00:00:00 2001
From: Redstonneur1256 <29004178+Redstonneur1256@users.noreply.github.com>
Date: Sun, 28 Dec 2025 03:37:03 +0100
Subject: [PATCH] Allow markers to use content/displays as textures (#11142)

* Allow markers to use content/displays as textures

* Don't process empty commands

* Allow canvases to be used as marker textures

* Proper Json serialization

---------

Co-authored-by: Anuken <arnukren@gmail.com>
---
 .../mindustry/editor/MapObjectivesDialog.java |   5 +
 core/src/mindustry/game/MapObjectives.java    | 124 ++++++++++++++----
 core/src/mindustry/logic/LExecutor.java       |   6 +-
 .../world/blocks/logic/CanvasBlock.java       |   3 +-
 .../world/blocks/logic/LogicDisplay.java      |  21 +--
 5 files changed, 118 insertions(+), 41 deletions(-)

diff --git a/core/src/mindustry/editor/MapObjectivesDialog.java b/core/src/mindustry/editor/MapObjectivesDialog.java
index 36c513478f..408a09a25d 100644
--- a/core/src/mindustry/editor/MapObjectivesDialog.java
+++ b/core/src/mindustry/editor/MapObjectivesDialog.java
@@ -290,6 +290,11 @@ public class MapObjectivesDialog extends BaseDialog{
             }, () -> {});
         });
 
+        setInterpreter(TextureHolder.class, (cont, name, type, field, remover, indexer, get, set) -> {
+            name(cont, name, remover, indexer);
+            cont.field(String.valueOf(get.get().value), s -> get.get().value = s).growX();
+        });
+
         // Types that use the default interpreter. It would be nice if all types could use it, but I don't know how to reliably prevent classes like [? extends Content] from using it.
         for(var obj : MapObjectives.allObjectiveTypes) setInterpreter(obj.get().getClass(), defaultInterpreter());
         for(var mark : MapObjectives.allMarkerTypes) setInterpreter(mark.get().getClass(), defaultInterpreter());
diff --git a/core/src/mindustry/game/MapObjectives.java b/core/src/mindustry/game/MapObjectives.java
index 1cf552149c..7cbd9612de 100644
--- a/core/src/mindustry/game/MapObjectives.java
+++ b/core/src/mindustry/game/MapObjectives.java
@@ -10,6 +10,9 @@ import arc.math.geom.*;
 import arc.scene.ui.layout.*;
 import arc.struct.*;
 import arc.util.*;
+import arc.util.io.*;
+import arc.util.serialization.*;
+import arc.util.serialization.Json.*;
 import mindustry.*;
 import mindustry.content.*;
 import mindustry.core.*;
@@ -21,8 +24,12 @@ import mindustry.io.*;
 import mindustry.logic.*;
 import mindustry.type.*;
 import mindustry.world.*;
+import mindustry.world.blocks.logic.CanvasBlock.*;
+import mindustry.world.blocks.logic.LogicDisplay.*;
 
+import java.io.*;
 import java.lang.annotation.*;
+import java.nio.*;
 import java.util.*;
 
 import static java.lang.annotation.ElementType.*;
@@ -665,7 +672,7 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
     }
 
     /** Marker used for drawing various content to indicate something along with an objective. Mostly used as UI overlay. */
-    public static abstract class ObjectiveMarker{
+    public static abstract class ObjectiveMarker implements JsonSerializable{
         /** Internal use only! Do not access. */
         public transient int arrayIndex;
 
@@ -694,7 +701,7 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
 
         public void setText(String text, boolean fetch){}
 
-        public void setTexture(String textureName){}
+        public void setTexture(Object texture){}
 
         /** @return The localized type-name of this objective, defaulting to the class simple name without the "Marker" prefix. */
         public String typeName(){
@@ -727,6 +734,17 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
                 return UI.formatIcons(text);
             }
         }
+
+        @Override
+        public void write(Json json){
+            json.writeFields(this);
+        }
+
+        @Override
+        public void read(Json json, JsonValue jsonData){
+            json.readFields(this, jsonData);
+            if(jsonData.has("textureName")) setTexture(jsonData.getString("textureName"));
+        }
     }
 
     /** A marker that has a position in the world in world coordinates. */
@@ -1127,20 +1145,20 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
     /** Displays a texture with specified name. */
     public static class TextureMarker extends PosMarker{
         public float rotation = 0f, width = 0f, height = 0f; // Zero width/height scales marker to original texture's size
-        public String textureName = "";
+        public final TextureHolder texture = new TextureHolder();
         public Color color = Color.white.cpy();
 
         private transient TextureRegion fetchedRegion;
 
-        public TextureMarker(String textureName, float x, float y, float width, float height){
-            this.textureName = textureName;
+        public TextureMarker(Object texture, float x, float y, float width, float height){
+            this.texture.value = texture;
             this.pos.set(x, y);
             this.width = width;
             this.height = height;
         }
 
-        public TextureMarker(String textureName, float x, float y){
-            this.textureName = textureName;
+        public TextureMarker(Object texture, float x, float y){
+            this.texture.value = texture;
             this.pos.set(x, y);
         }
 
@@ -1167,9 +1185,8 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
 
         @Override
         public void draw(float scaleFactor){
-            if(textureName.isEmpty()) return;
-
-            if(fetchedRegion == null) setTexture(textureName);
+            if(fetchedRegion == null) setTexture(texture.value);
+            prepareTexture(this, texture.value);
 
             // Zero width/height scales marker to original texture's size
             if(Mathf.equal(width, 0f)) width = fetchedRegion.width * fetchedRegion.scl() * Draw.xscl;
@@ -1181,18 +1198,17 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
         }
 
         @Override
-        public void setTexture(String textureName){
-            this.textureName = textureName;
+        public void setTexture(Object texture){
+            this.texture.value = texture;
 
             if(headless) return;
             if(fetchedRegion == null) fetchedRegion = new TextureRegion();
-            lookupRegion(textureName, fetchedRegion);
+            lookupRegion(texture, fetchedRegion);
         }
-
     }
 
     public static class QuadMarker extends ObjectiveMarker{
-        public String textureName = "white";
+        public final TextureHolder texture = new TextureHolder();
         public @Vertices float[] vertices = new float[24];
         private boolean mapRegion = true;
 
@@ -1207,7 +1223,8 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
 
         @Override
         public void draw(float scaleFactor){
-            if(fetchedRegion == null) setTexture(textureName);
+            if(fetchedRegion == null) setTexture(texture.value);
+            prepareTexture(this, texture.value);
 
             Draw.z(drawLayer);
             Draw.vert(fetchedRegion.texture, vertices, 0, vertices.length);
@@ -1243,8 +1260,8 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
         }
 
         @Override
-        public void setTexture(String textureName){
-            this.textureName = textureName;
+        public void setTexture(Object texture){
+            this.texture.value = texture;
             if(headless) return;
 
             boolean firstUpdate = fetchedRegion == null;
@@ -1252,7 +1269,7 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
             if(firstUpdate) fetchedRegion = new TextureRegion();
             Tmp.tr1.set(fetchedRegion);
 
-            lookupRegion(textureName, fetchedRegion);
+            lookupRegion(texture, fetchedRegion);
 
             if(firstUpdate){
                 if(mapRegion){
@@ -1290,7 +1307,7 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
             if(headless) return;
 
             if(i >= 0 && i < 4){
-                if(fetchedRegion == null) setTexture(textureName);
+                if(fetchedRegion == null) setTexture(texture);
 
                 if(!Double.isNaN(u)){
                     boolean clampU = fetchedRegion.texture.getUWrap() != TextureWrap.mirroredRepeat && fetchedRegion.texture.getUWrap() != TextureWrap.repeat;
@@ -1304,16 +1321,71 @@ public class MapObjectives implements Iterable<MapObjective>, Eachable<MapObject
         }
     }
 
-    private static void lookupRegion(String name, TextureRegion out){
-        TextureRegion region = Core.atlas.find(name);
-        if(region.found()){
-            out.set(region);
-        }else{
-            if(Core.assets.isLoaded(name, Texture.class)){
+    private static void lookupRegion(Object texture, TextureRegion out){
+        if(texture instanceof String name){
+            TextureRegion region = Core.atlas.find(name);
+            if(region.found()){
+                out.set(region);
+            }else if(Core.assets.isLoaded(name, Texture.class)){
                 out.set(Core.assets.get(name, Texture.class));
             }else{
                 out.set(Core.atlas.find("error"));
             }
+        }else if(texture instanceof UnlockableContent u){
+            out.set(u.fullIcon);
+        }else if(texture instanceof LogicDisplayBuild d){
+            d.ensureBuffer();
+            out.set(d.buffer.getTexture());
+        }else if(texture instanceof CanvasBuild c){
+            if(c.texture == null) c.updateTexture();
+            out.set(c.texture);
+        }else{
+            out.set(Core.atlas.find("error"));
+        }
+    }
+
+    private static void prepareTexture(ObjectiveMarker marker, Object texture){
+        if(texture instanceof LogicDisplayBuild d){
+            if(d.buffer == null || d.buffer.isDisposed()){
+                marker.setTexture("error");
+            }else{
+                d.processCommands();
+            }
+        }else if(texture instanceof CanvasBuild c){
+            if(c.texture == null || c.texture.isDisposed()){
+                marker.setTexture("error");
+            }else if(c.updated){
+                c.updated = false;
+                c.updateTexture();
+            }
+        }
+    }
+
+    public static class TextureHolder implements JsonSerializable{
+        public Object value = "white";
+
+        @Override
+        public void write(Json json){
+            if(value instanceof String s){
+                json.writeValue("string", s);
+            }else if(value instanceof UnlockableContent c){
+                json.writeValue("content", c.name);
+            }else if(value instanceof Building b){
+                json.writeValue("building", b.pos());
+            }
+        }
+
+        @Override
+        public void read(Json json, JsonValue jsonData){
+            if(jsonData.has("string")){
+                value = jsonData.get("string").asString();
+            }else if(jsonData.has("content")){
+                value = content.byName(jsonData.get("content").asString());
+            }else if(jsonData.has("building")){
+                value = world.build(jsonData.get("building").asInt());
+            }else{
+                value = "white";
+            }
         }
     }
 
diff --git a/core/src/mindustry/logic/LExecutor.java b/core/src/mindustry/logic/LExecutor.java
index 8dcba5442c..9410a3d411 100644
--- a/core/src/mindustry/logic/LExecutor.java
+++ b/core/src/mindustry/logic/LExecutor.java
@@ -2067,7 +2067,7 @@ public class LExecutor{
                         marker.setTexture(exec.textBuffer.toString());
                         exec.textBuffer.setLength(0);
                     }else{
-                        marker.setTexture(PrintI.toString(p2.obj()));
+                        marker.setTexture(p2.obj());
                     }
                 }else{
                     marker.control(type, p1.numOrNan(), p2.numOrNan(), p3.numOrNan());
@@ -2138,10 +2138,10 @@ public class LExecutor{
     }
 
     @Remote(called = Loc.server, variants = Variant.both, unreliable = true)
-    public static void updateMarkerTexture(int id, String textureName){
+    public static void updateMarkerTexture(int id, Object texture){
         var marker = state.markers.get(id);
         if(marker != null){
-            marker.setTexture(textureName);
+            marker.setTexture(texture);
         }
     }
 
diff --git a/core/src/mindustry/world/blocks/logic/CanvasBlock.java b/core/src/mindustry/world/blocks/logic/CanvasBlock.java
index d88396f41a..a52e8f71ba 100644
--- a/core/src/mindustry/world/blocks/logic/CanvasBlock.java
+++ b/core/src/mindustry/world/blocks/logic/CanvasBlock.java
@@ -149,8 +149,7 @@ public class CanvasBlock extends Block{
         public @Nullable Texture texture;
         public byte[] data = new byte[Mathf.ceil(canvasSize * canvasSize * bitsPerPixel / 8f)];
         public int blending;
-
-        protected boolean updated = false;
+        public boolean updated = false;
 
         public void setPixel(int pos, int index){
             if(pos < canvasSize * canvasSize && pos >= 0 && index >= 0 && index < palette.length){
diff --git a/core/src/mindustry/world/blocks/logic/LogicDisplay.java b/core/src/mindustry/world/blocks/logic/LogicDisplay.java
index 393378f440..c238da05d3 100644
--- a/core/src/mindustry/world/blocks/logic/LogicDisplay.java
+++ b/core/src/mindustry/world/blocks/logic/LogicDisplay.java
@@ -89,15 +89,7 @@ public class LogicDisplay extends Block{
             //don't even bother processing anything when displays are off.
             if(!Vars.renderer.drawDisplays) return;
 
-            Draw.draw(Draw.z(), () -> {
-                if(buffer == null){
-                    buffer = new FrameBuffer(displaySize, displaySize);
-                    //clear the buffer - some OSs leave garbage in it
-                    buffer.begin(Pal.darkerMetal);
-                    buffer.end();
-                }
-            });
-
+            Draw.draw(Draw.z(), this::ensureBuffer);
             processCommands();
 
             Draw.blend(Blending.disabled);
@@ -129,11 +121,20 @@ public class LogicDisplay extends Block{
             operations++;
         }
 
+        public void ensureBuffer() {
+            if(buffer == null){
+                buffer = new FrameBuffer(displaySize, displaySize);
+                //clear the buffer - some OSs leave garbage in it
+                buffer.begin(Pal.darkerMetal);
+                buffer.end();
+            }
+        }
+
         public void processCommands(){
             //don't bother processing commands if displays are off
             if(!commands.isEmpty() && buffer != null){
                 Draw.draw(Draw.z(), () -> {
-                    if(buffer == null) return;
+                    if(buffer == null || commands.isEmpty()) return;
 
                     Tmp.m1.set(Draw.proj());
                     Tmp.m2.set(Draw.trans());