add getShopBySignLocation(Location signLocation) to api

api/src/main/java/com/alttd/playershops/api/ShopHandler.java

@@ -19,6 +19,14 @@ public interface ShopHandler { // TODO finish docs
      */
     Shop getShop(Location location);
 
+    /**
+     * Get the shop at a given location
+     *
+     * @param signLocation Location of the shopSign
+     * @return Shop at the given location or <b>null</b> if no shop is found there
+     */
+    Shop getShopBySignLocation(Location signLocation);
+
     /**
      * Checks whether there is a shop at a given location
      * @param location Location to check

api/src/main/java/com/alttd/playershops/api/events/PlayerCreateShopEvent.java

@@ -2,15 +2,12 @@ package com.alttd.playershops.api.events;
 
 import com.alttd.playershops.api.Shop;
 import org.bukkit.entity.Player;
-import org.bukkit.event.Cancellable;
-import org.bukkit.event.Event;
 import org.bukkit.event.HandlerList;
 import org.jetbrains.annotations.NotNull;
 
 public class PlayerCreateShopEvent extends ShopEvent {
     private static final HandlerList handlers = new HandlerList();
     private final Player player;
-    private boolean cancelled;
 
     public PlayerCreateShopEvent(Player player, Shop shop) {
         super(shop);
@@ -21,16 +18,6 @@ public class PlayerCreateShopEvent extends ShopEvent {
         return player;
     }
 
-    @Override
-    public boolean isCancelled() {
-        return cancelled;
-    }
-
-    @Override
-    public void setCancelled(boolean set) {
-        cancelled = set;
-    }
-
     @NotNull
     @Override
     public HandlerList getHandlers() {

api/src/main/java/com/alttd/playershops/api/events/PlayerDestroyShopEvent.java

@@ -2,8 +2,6 @@ package com.alttd.playershops.api.events;
 
 import com.alttd.playershops.api.Shop;
 import org.bukkit.entity.Player;
-import org.bukkit.event.Cancellable;
-import org.bukkit.event.Event;
 import org.bukkit.event.HandlerList;
 import org.jetbrains.annotations.NotNull;
 
@@ -11,7 +9,6 @@ public class PlayerDestroyShopEvent extends ShopEvent {
 
     private static final HandlerList handlers = new HandlerList();
     private final Player player;
-    private boolean cancelled;
 
     public PlayerDestroyShopEvent(Player player, Shop shop) {
         super(shop);
@@ -22,16 +19,6 @@ public class PlayerDestroyShopEvent extends ShopEvent {
         return player;
     }
 
-    @Override
-    public boolean isCancelled() {
-        return cancelled;
-    }
-
-    @Override
-    public void setCancelled(boolean set) {
-        cancelled = set;
-    }
-
     @NotNull
     @Override
     public HandlerList getHandlers() {

api/src/main/java/com/alttd/playershops/api/events/PlayerExchangeShopEvent.java

@@ -2,8 +2,6 @@ package com.alttd.playershops.api.events;
 
 import com.alttd.playershops.api.Shop;
 import org.bukkit.entity.Player;
-import org.bukkit.event.Cancellable;
-import org.bukkit.event.Event;
 import org.bukkit.event.HandlerList;
 import org.jetbrains.annotations.NotNull;
 
@@ -11,7 +9,6 @@ public class PlayerExchangeShopEvent extends ShopEvent {
 
     private static final HandlerList handlers = new HandlerList();
     private final Player player;
-    private boolean cancelled;
 
     public PlayerExchangeShopEvent(Player player, Shop shop) {
         super(shop);
@@ -22,16 +19,6 @@ public class PlayerExchangeShopEvent extends ShopEvent {
         return player;
     }
 
-    @Override
-    public boolean isCancelled() {
-        return cancelled;
-    }
-
-    @Override
-    public void setCancelled(boolean set) {
-        cancelled = set;
-    }
-
     @NotNull
     @Override
     public HandlerList getHandlers() {

api/src/main/java/com/alttd/playershops/api/events/PlayerInitializeShopEvent.java

@@ -2,8 +2,6 @@ package com.alttd.playershops.api.events;
 
 import com.alttd.playershops.api.Shop;
 import org.bukkit.entity.Player;
-import org.bukkit.event.Cancellable;
-import org.bukkit.event.Event;
 import org.bukkit.event.HandlerList;
 import org.jetbrains.annotations.NotNull;
 
@@ -11,7 +9,6 @@ public class PlayerInitializeShopEvent extends ShopEvent {
 
     private static final HandlerList handlers = new HandlerList();
     private final Player player;
-    private boolean cancelled;
 
     public PlayerInitializeShopEvent(Player player, Shop shop) {
         super(shop);
@@ -22,16 +19,6 @@ public class PlayerInitializeShopEvent extends ShopEvent {
         return player;
     }
 
-    @Override
-    public boolean isCancelled() {
-        return cancelled;
-    }
-
-    @Override
-    public void setCancelled(boolean set) {
-        cancelled = set;
-    }
-
     @NotNull
     @Override
     public HandlerList getHandlers() {

api/src/main/java/com/alttd/playershops/api/events/ShopBalanceChangeEvent.java

@@ -0,0 +1,41 @@
+package com.alttd.playershops.api.events;
+
+import com.alttd.playershops.api.Shop;
+import org.bukkit.event.HandlerList;
+import org.jetbrains.annotations.NotNull;
+
+public class ShopBalanceChangeEvent extends ShopEvent {
+    private static final HandlerList handlers = new HandlerList();
+    private final ChangeReason changeReason;
+
+    public ShopBalanceChangeEvent(Shop shop, ChangeReason reason) {
+        super(shop);
+        this.changeReason = reason;
+    }
+
+    @NotNull
+    @Override
+    public HandlerList getHandlers() {
+        return handlers;
+    }
+
+    @NotNull
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
+
+    public ChangeReason getChangeReason() {
+        return changeReason;
+    }
+
+    public enum ChangeReason {
+
+        DEPOSIT,
+        WIDRAW,
+        SELL,
+        BUY,
+        UPKEEP
+
+    }
+
+}

plugin/src/main/java/com/alttd/playershops/listener/ShopListener.java

@@ -1,6 +1,15 @@
 package com.alttd.playershops.listener;
 
 import com.alttd.playershops.PlayerShops;
+import com.alttd.playershops.api.Shop;
+import com.alttd.playershops.config.Config;
+import org.bukkit.Location;
+import org.bukkit.Tag;
+import org.bukkit.block.Block;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.entity.EntityExplodeEvent;
+
+import java.util.Iterator;
 
 public class ShopListener extends EventListener {
 
@@ -10,4 +19,26 @@ public class ShopListener extends EventListener {
         this.plugin = plugin;
         this.register(this.plugin);
     }
+
+    @EventHandler(ignoreCancelled = true)
+    public void onEntityExplosion(EntityExplodeEvent event) {
+        if(!this.isRegistered) return;
+
+        Iterator<Block> blockIterator = event.blockList().iterator();
+        Shop shop = null;
+        while (blockIterator.hasNext()) {
+
+            Block block = blockIterator.next();
+            Location location = block.getLocation();
+            if (Tag.WALL_SIGNS.isTagged(block.getType())) {
+                shop = plugin.getShopHandler().getShopBySignLocation(location);
+            } else if (plugin.getShopHandler().isShopMaterial(block)) {
+                shop = plugin.getShopHandler().getShop(location);
+            }
+
+            if (shop != null) {
+                blockIterator.remove();
+            }
+        }
+    }
 }