prototype for grief detection

src/main/java/eu/mhsl/craftattack/spawn/appliances/tooling/antiGrief/AntiGrief.java

@@ -0,0 +1,49 @@
+package eu.mhsl.craftattack.spawn.appliances.tooling.antiGrief;
+
+import eu.mhsl.craftattack.spawn.appliance.Appliance;
+import eu.mhsl.craftattack.spawn.appliances.tooling.antiGrief.player.PlayerGriefListener;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.entity.BlockDisplay;
+import org.bukkit.entity.ItemDisplay;
+import org.bukkit.event.Listener;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.util.Transformation;
+import org.jetbrains.annotations.NotNull;
+
+import javax.annotation.Nullable;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+public class AntiGrief extends Appliance {
+    private final Map<Block, UUID> blockRegistry = new HashMap<>();
+
+    public void addTracking(Block block, UUID player) {
+        this.blockRegistry.put(block, player);
+        block.getLocation().getWorld().spawn(block.getLocation(), ItemDisplay.class, itemDisplay -> {
+            itemDisplay.setItemStack(ItemStack.of(Material.FIRE_CHARGE));
+            itemDisplay.teleport(block.getLocation().add(0.5, 0.5, 0.5));
+        });
+    }
+
+    public @Nullable UUID getTracked(Block block) {
+        return this.blockRegistry.get(block);
+    }
+
+    public void addDestroyed(Block block, UUID player) {
+        block.getLocation().getWorld().spawn(block.getLocation().add(0.5, 0.5, 0.5), BlockDisplay.class, blockDisplay -> {
+            blockDisplay.setBlock(Material.GOLD_BLOCK.createBlockData());
+
+            Transformation transformation = blockDisplay.getTransformation();
+            transformation.getScale().set(0.3);
+            blockDisplay.setTransformation(transformation);
+        });
+    }
+
+    @Override
+    protected @NotNull List<Listener> listeners() {
+        return List.of(new PlayerGriefListener());
+    }
+}

src/main/java/eu/mhsl/craftattack/spawn/appliances/tooling/antiGrief/player/PlayerGriefListener.java

@@ -0,0 +1,51 @@
+package eu.mhsl.craftattack.spawn.appliances.tooling.antiGrief.player;
+
+import eu.mhsl.craftattack.spawn.appliance.ApplianceListener;
+import eu.mhsl.craftattack.spawn.appliances.tooling.antiGrief.AntiGrief;
+import net.kyori.adventure.text.Component;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.block.BlockBurnEvent;
+import org.bukkit.event.block.BlockIgniteEvent;
+import org.bukkit.event.block.BlockSpreadEvent;
+
+import java.util.UUID;
+
+public class PlayerGriefListener extends ApplianceListener<AntiGrief> {
+    @EventHandler
+    public void onIgnite(BlockIgniteEvent event) {
+        Bukkit.broadcast(Component.text(event.getCause().toString()));
+        switch(event.getCause()) {
+            case LAVA:
+            case SPREAD:
+            case EXPLOSION:
+                if(event.getIgnitingBlock() == null) return;
+                UUID ignitedBy = this.getAppliance().getTracked(event.getIgnitingBlock());
+                this.getAppliance().addTracking(event.getBlock(), ignitedBy);
+                break;
+
+            case FLINT_AND_STEEL:
+            case ENDER_CRYSTAL:
+            case ARROW:
+            case FIREBALL:
+                if(event.getPlayer() == null) return;
+                this.getAppliance().addTracking(event.getBlock(), event.getPlayer().getUniqueId());
+                break;
+        }
+    }
+
+    @EventHandler
+    public void onSpread(BlockSpreadEvent event) {
+        if(!event.getBlock().getType().equals(Material.FIRE)) return;
+        UUID ignitedBy = this.getAppliance().getTracked(event.getBlock());
+        this.getAppliance().addTracking(event.getBlock(), ignitedBy);
+    }
+
+    @EventHandler
+    public void onDestroy(BlockBurnEvent event) {
+        UUID ignitedBy = this.getAppliance().getTracked(event.getIgnitingBlock());
+        if(ignitedBy == null) return;
+        this.getAppliance().addDestroyed(event.getBlock(), ignitedBy);
+    }
+}