#4129

core/src/mindustry/world/blocks/payloads/BuildPayload.java

@@ -57,4 +57,9 @@ public class BuildPayload implements Payload{
         Drawf.shadow(build.x, build.y, build.block.size * tilesize * 2f);
         Draw.rect(build.block.icon(Cicon.full), build.x, build.y);
     }
+
+    @Override
+    public TextureRegion icon(Cicon icon){
+        return block().icon(icon);
+    }
 }

core/src/mindustry/world/blocks/payloads/Payload.java

@@ -1,9 +1,11 @@
 package mindustry.world.blocks.payloads;
 
+import arc.graphics.g2d.*;
 import arc.util.*;
 import arc.util.io.*;
 import mindustry.game.*;
 import mindustry.gen.*;
+import mindustry.ui.*;
 import mindustry.world.*;
 
 import static mindustry.Vars.*;
@@ -33,6 +35,9 @@ public interface Payload{
     /** writes the payload for saving. */
     void write(Writes write);
 
+    /** @return icon describing the contents. */
+    TextureRegion icon(Cicon icon);
+
     static void write(@Nullable Payload payload, Writes write){
         if(payload == null){
             write.bool(false);

core/src/mindustry/world/blocks/payloads/UnitPayload.java

@@ -89,4 +89,9 @@ public class UnitPayload implements Payload{
             deactiveTime = Math.max(deactiveTime - Time.delta/deactiveDuration, 0f);
         }
     }
+
+    @Override
+    public TextureRegion icon(Cicon icon){
+        return unit.type.icon(icon);
+    }
 }

core/src/mindustry/world/blocks/power/Battery.java

@@ -45,8 +45,8 @@ public class Battery extends PowerDistributor{
 
         @Override
         public BlockStatus status(){
-            if(Mathf.equal(power.status, 0f, 0.01f)) return BlockStatus.noInput;
-            if(Mathf.equal(power.status, 1f, 0.01f)) return BlockStatus.active;
+            if(Mathf.equal(power.status, 0f, 0.001f)) return BlockStatus.noInput;
+            if(Mathf.equal(power.status, 1f, 0.001f)) return BlockStatus.active;
             return BlockStatus.noOutput;
         }
     }