hortiloaders 1.0.3.0 bug fix (#6233)

* hortiloaders 1.0.3.0 bug fix

it didnt unload from StackConveyors/Storage when they had the same loadfactor as the factory

* unloader fix, using fields

core/src/mindustry/world/Block.java

@@ -265,6 +265,8 @@ public class Block extends UnlockableContent{
     public boolean quickRotate = true;
     /** Main subclass. Non-anonymous. */
     public @Nullable Class<?> subclass;
+    /** Determines if this block gets a higher unloader priority. */
+    public boolean highUnloadPriority = false;
 
     public float selectScroll; //scroll position for certain blocks
     public Prov<Building> buildType = null; //initialized later

core/src/mindustry/world/blocks/distribution/StackConveyor.java

@@ -42,6 +42,7 @@ public class StackConveyor extends Block implements Autotiler{
         hasItems = true;
         itemCapacity = 10;
         conveyorPlacement = true;
+        highUnloadPriority = true;
 
         ambientSound = Sounds.conveyor;
         ambientSoundVolume = 0.004f;

core/src/mindustry/world/blocks/storage/StorageBlock.java

@@ -25,6 +25,7 @@ public class StorageBlock extends Block{
         flags = EnumSet.of(BlockFlag.storage);
         allowResupply = true;
         envEnabled = Env.any;
+        highUnloadPriority = true;
     }
 
     @Override

core/src/mindustry/world/blocks/storage/Unloader.java

@@ -11,7 +11,6 @@ import mindustry.gen.*;
 import mindustry.type.*;
 import mindustry.world.*;
 import mindustry.world.blocks.*;
-import mindustry.world.blocks.distribution.*;
 import mindustry.world.meta.*;
 
 import static mindustry.Vars.*;
@@ -139,7 +138,7 @@ public class Unloader extends Block{
 
                 //sort so it gives full priority to blocks that can give but not receive (stackConveyors and Storage), and then by load
                 possibleBlocks.sort(Structs.comps(
-                    Structs.comparingBool(e -> e.building.block instanceof StorageBlock || e.building.block instanceof StackConveyor),
+                    Structs.comparingBool(e -> e.building.block.highUnloadPriority),
                     Structs.comparingFloat(e -> e.loadFactor)
                 ));
 
@@ -163,7 +162,7 @@ public class Unloader extends Block{
                 }
 
                 //trade the items
-                if(dumpingFrom != null && dumpingTo != null && dumpingFrom.loadFactor != dumpingTo.loadFactor){
+                if(dumpingFrom != null && dumpingTo != null && (dumpingFrom.loadFactor != dumpingTo.loadFactor || dumpingFrom.building.block.highUnloadPriority)){
                     dumpingTo.building.handleItem(this, item);
                     dumpingFrom.building.removeStack(item, 1);
                     any = true;