block breaking / active block entity API

src/main/java/carpet/fakes/ServerPlayerInteractionManagerInterface.java

@@ -0,0 +1,12 @@
+package carpet.fakes;
+
+import net.minecraft.util.math.BlockPos;
+
+public interface ServerPlayerInteractionManagerInterface
+{
+    BlockPos getCurrentBreakingBlock();
+
+    int getCurrentBlockBreakingProgress();
+
+    void setBlockBreakingProgress(int progress);
+}

src/main/java/carpet/mixins/ServerPlayerInteractionManager_scarpetEventsMixin.java

@@ -1,5 +1,6 @@
 package carpet.mixins;
 
+import carpet.fakes.ServerPlayerInteractionManagerInterface;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.block.entity.BlockEntity;
@@ -7,10 +8,12 @@ import net.minecraft.entity.player.PlayerEntity;
 import net.minecraft.item.ItemStack;
 import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.server.network.ServerPlayerInteractionManager;
+import net.minecraft.server.world.ServerWorld;
 import net.minecraft.util.ActionResult;
 import net.minecraft.util.Hand;
 import net.minecraft.util.hit.BlockHitResult;
 import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
 import net.minecraft.world.World;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.Shadow;
@@ -24,10 +27,18 @@ import static carpet.script.CarpetEventServer.Event.PLAYER_INTERACTS_WITH_BLOCK;
 
 
 @Mixin(ServerPlayerInteractionManager.class)
-public class ServerPlayerInteractionManager_scarpetEventsMixin
+public class ServerPlayerInteractionManager_scarpetEventsMixin implements ServerPlayerInteractionManagerInterface
 {
     @Shadow public ServerPlayerEntity player;
 
+    @Shadow private boolean mining;
+
+    @Shadow private BlockPos miningPos;
+
+    @Shadow private int blockBreakingProgress;
+
+    @Shadow public ServerWorld world;
+
     @Inject(method = "tryBreakBlock", locals = LocalCapture.CAPTURE_FAILHARD, at = @At(
             value = "INVOKE",
             target = "Lnet/minecraft/block/Block;onBreak(Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Lnet/minecraft/entity/player/PlayerEntity;)V",
@@ -46,4 +57,25 @@ public class ServerPlayerInteractionManager_scarpetEventsMixin
     {
         PLAYER_INTERACTS_WITH_BLOCK.onBlockHit(player, hand, blockHitResult);
     }
+
+    @Override
+    public BlockPos getCurrentBreakingBlock()
+    {
+        if (!mining) return null;
+        return miningPos;
+    }
+
+    @Override
+    public int getCurrentBlockBreakingProgress()
+    {
+        if (!mining) return -1;
+        return blockBreakingProgress;
+    }
+
+    @Override
+    public void setBlockBreakingProgress(int progress)
+    {
+        blockBreakingProgress = MathHelper.clamp(progress, -1, 10);
+        world.setBlockBreakingInfo(-1*this.player.getEntityId(), miningPos, blockBreakingProgress);
+    }
 }

src/main/java/carpet/script/value/EntityValue.java

@@ -5,6 +5,7 @@ import carpet.fakes.ItemEntityInterface;
 import carpet.fakes.LivingEntityInterface;
 import carpet.fakes.MobEntityInterface;
 import carpet.fakes.HungerManagerInterface;
+import carpet.fakes.ServerPlayerInteractionManagerInterface;
 import carpet.helpers.Tracer;
 import carpet.patches.EntityPlayerMPFake;
 import carpet.script.CarpetContext;
@@ -464,9 +465,32 @@ public class EntityValue extends Value
         put("selected_slot", (e, a) -> {
            if (e instanceof PlayerEntity)
                return new NumericValue(((PlayerEntity) e).inventory.selectedSlot);
-           return null;
+           return Value.NULL;
         });
 
+        put("active_block", (e, a) -> {
+            if (e instanceof ServerPlayerEntity)
+            {
+                ServerPlayerInteractionManagerInterface manager = (ServerPlayerInteractionManagerInterface) (((ServerPlayerEntity) e).interactionManager);
+                BlockPos pos = manager.getCurrentBreakingBlock();
+                if (pos == null) return Value.NULL;
+                return new BlockValue(null, ((ServerPlayerEntity) e).getServerWorld(), pos);
+            }
+            return Value.NULL;
+        });
+
+        put("breaking_progress", (e, a) -> {
+            if (e instanceof ServerPlayerEntity)
+            {
+                ServerPlayerInteractionManagerInterface manager = (ServerPlayerInteractionManagerInterface) (((ServerPlayerEntity) e).interactionManager);
+                int progress = manager.getCurrentBlockBreakingProgress();
+                if (progress < 0) return Value.NULL;
+                return new NumericValue(progress);
+            }
+            return Value.NULL;
+        });
+
+
         put("facing", (e, a) -> {
             int index = 0;
             if (a != null)
@@ -1033,6 +1057,15 @@ public class EntityValue extends Value
             if(e instanceof PlayerEntity) ((PlayerEntity) e).getHungerManager().setSaturationLevelClient((float)NumericValue.asNumber(v).getLong());
         });
 
+        put("breaking_progress", (e, a) -> {
+            if (e instanceof ServerPlayerEntity)
+            {
+                int progress = (a == null || a == Value.NULL)?-1:NumericValue.asNumber(a).getInt();
+                ServerPlayerInteractionManagerInterface manager = (ServerPlayerInteractionManagerInterface) (((ServerPlayerEntity) e).interactionManager);
+                manager.setBlockBreakingProgress(progress);
+            }
+        });
+
         put("nbt", (e, v) -> {
             if (!(e instanceof PlayerEntity))
             {