From a1f5331d1b57175a29474e6c1465db9c9d56b5af Mon Sep 17 00:00:00 2001
From: erocs <github@erocs.org>
Date: Sun, 8 Sep 2013 12:06:15 -0700
Subject: [PATCH] Hopper Customisations

Allows editing hopper cooldowns and amount transferred per tick.

diff --git a/src/main/java/net/minecraft/server/TileEntityHopper.java b/src/main/java/net/minecraft/server/TileEntityHopper.java
index 72d067a..b3bf687 100644
--- a/src/main/java/net/minecraft/server/TileEntityHopper.java
+++ b/src/main/java/net/minecraft/server/TileEntityHopper.java
@@ -194,12 +194,18 @@ public class TileEntityHopper extends TileEntityContainer implements IHopper, IU
                 }
 
                 if (flag) {
-                    this.d(8);
+                    this.d(world.spigotConfig.hopperTransfer); // Spigot
                     this.update();
                     return true;
                 }
             }
 
+            // Spigot start
+            if ( !this.n() )
+            {
+                this.d( world.spigotConfig.hopperCheck );
+            }
+            // Spigot end
             return false;
         } else {
             return false;
@@ -253,7 +259,7 @@ public class TileEntityHopper extends TileEntityContainer implements IHopper, IU
                         // ItemStack itemstack1 = addItem(iinventory, this.splitStack(i, 1), enumdirection);
 
                         // CraftBukkit start - Call event when pushing items into other inventories
-                        CraftItemStack oitemstack = CraftItemStack.asCraftMirror(this.splitStack(i, 1));
+                        CraftItemStack oitemstack = CraftItemStack.asCraftMirror(this.splitStack(i, world.spigotConfig.hopperAmount)); // Spigot
 
                         Inventory destinationInventory;
                         // Have to special case large chests as they work oddly
@@ -267,9 +273,10 @@ public class TileEntityHopper extends TileEntityContainer implements IHopper, IU
                         this.getWorld().getServer().getPluginManager().callEvent(event);
                         if (event.isCancelled()) {
                             this.setItem(i, itemstack);
-                            this.d(8); // Delay hopper checks
+                            this.d(world.spigotConfig.hopperTransfer); // Spigot
                             return false;
                         }
+                        int origCount = event.getItem().getAmount(); // Spigot
                         ItemStack itemstack1 = addItem(iinventory, CraftItemStack.asNMSCopy(event.getItem()), enumdirection);
 
                         if (itemstack1 == null || itemstack1.count == 0) {
@@ -281,7 +288,7 @@ public class TileEntityHopper extends TileEntityContainer implements IHopper, IU
                             // CraftBukkit end
                             return true;
                         }
-
+                        itemstack.count -= origCount - itemstack1.count; // Spigot
                         this.setItem(i, itemstack);
                     }
                 }
@@ -391,7 +398,7 @@ public class TileEntityHopper extends TileEntityContainer implements IHopper, IU
             ItemStack itemstack1 = itemstack.cloneItemStack();
             // ItemStack itemstack2 = addItem(ihopper, iinventory.splitStack(i, 1), (EnumDirection) null);
             // CraftBukkit start - Call event on collection of items from inventories into the hopper
-            CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.splitStack(i, 1));
+            CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.splitStack(i, ihopper.getWorld().spigotConfig.hopperAmount)); // Spigot
 
             Inventory sourceInventory;
             // Have to special case large chests as they work oddly
@@ -408,13 +415,13 @@ public class TileEntityHopper extends TileEntityContainer implements IHopper, IU
                 iinventory.setItem(i, itemstack1);
 
                 if (ihopper instanceof TileEntityHopper) {
-                    ((TileEntityHopper) ihopper).d(8); // Delay hopper checks
+                    ((TileEntityHopper) ihopper).d(ihopper.getWorld().spigotConfig.hopperTransfer); // Spigot
                 } else if (ihopper instanceof EntityMinecartHopper) {
-                    ((EntityMinecartHopper) ihopper).m(4); // Delay hopper minecart checks
+                    ((EntityMinecartHopper) ihopper).m(ihopper.getWorld().spigotConfig.hopperTransfer / 2); // Spigot
                 }
-
                 return false;
             }
+            int origCount = event.getItem().getAmount(); // Spigot
             ItemStack itemstack2 = addItem(ihopper, CraftItemStack.asNMSCopy(event.getItem()), null);
 
             if (itemstack2 == null || itemstack2.count == 0) {
@@ -426,6 +433,7 @@ public class TileEntityHopper extends TileEntityContainer implements IHopper, IU
                 // CraftBukkit end
                 return true;
             }
+            itemstack1.count -= origCount - itemstack2.count; // Spigot
 
             iinventory.setItem(i, itemstack1);
         }
@@ -515,7 +523,7 @@ public class TileEntityHopper extends TileEntityContainer implements IHopper, IU
                     TileEntityHopper tileentityhopper = (TileEntityHopper) iinventory;
 
                     if (tileentityhopper.o()) {
-                        tileentityhopper.d(8);
+                        tileentityhopper.d(tileentityhopper.world.spigotConfig.hopperTransfer); // Spigot
                     }
 
                     iinventory.update();
diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
index 6421bf2..956c628 100644
--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
@@ -164,4 +164,19 @@ public class SpigotWorldConfig
         otherTrackingRange = getInt( "entity-tracking-range.other", otherTrackingRange );
         log( "Entity Tracking Range: Pl " + playerTrackingRange + " / An " + animalTrackingRange + " / Mo " + monsterTrackingRange + " / Mi " + miscTrackingRange + " / Other " + otherTrackingRange );
     }
+
+    public int hopperTransfer;
+    public int hopperCheck;
+    public int hopperAmount;
+    private void hoppers()
+    {
+        // Set the tick delay between hopper item movements
+        hopperTransfer = getInt( "ticks-per.hopper-transfer", 8 );
+        // Set the tick delay between checking for items after the associated
+        // container is empty. Default to the hopperTransfer value to prevent
+        // hopper sorting machines from becoming out of sync.
+        hopperCheck = getInt( "ticks-per.hopper-check", hopperTransfer );
+        hopperAmount = getInt( "hopper-amount", 1 );
+        log( "Hopper Transfer: " + hopperTransfer + " Hopper Check: " + hopperCheck + " Hopper Amount: " + hopperAmount );
+    }
 }
-- 
2.1.0