craftbukkit/nms-patches/net/minecraft/world/level/block/BlockPressurePlateWeighted.patch

--- a/net/minecraft/world/level/block/BlockPressurePlateWeighted.java
+++ b/net/minecraft/world/level/block/BlockPressurePlateWeighted.java
@@ -11,6 +11,11 @@
 import net.minecraft.world.level.block.state.properties.BlockSetType;
 import net.minecraft.world.level.block.state.properties.BlockStateInteger;
 
+// CraftBukkit start
+import net.minecraft.world.entity.player.EntityHuman;
+import org.bukkit.event.entity.EntityInteractEvent;
+// CraftBukkit end
+
 public class BlockPressurePlateWeighted extends BlockPressurePlateAbstract {
 
     public static final BlockStateInteger POWER = BlockProperties.POWER;
@@ -24,7 +29,31 @@
 
     @Override
     protected int getSignalStrength(World world, BlockPosition blockposition) {
-        int i = Math.min(world.getEntitiesOfClass(Entity.class, BlockPressurePlateWeighted.TOUCH_AABB.move(blockposition)).size(), this.maxWeight);
+        // CraftBukkit start
+        // int i = Math.min(world.getEntitiesOfClass(Entity.class, BlockPressurePlateWeighted.TOUCH_AABB.move(blockposition)).size(), this.maxWeight);
+        int i = 0;
+        java.util.Iterator iterator = world.getEntitiesOfClass(Entity.class, BlockPressurePlateWeighted.TOUCH_AABB.move(blockposition)).iterator();
+
+        while (iterator.hasNext()) {
+            Entity entity = (Entity) iterator.next();
+
+            org.bukkit.event.Cancellable cancellable;
+
+            if (entity instanceof EntityHuman) {
+                cancellable = org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent((EntityHuman) entity, org.bukkit.event.block.Action.PHYSICAL, blockposition, null, null, null);
+            } else {
+                cancellable = new EntityInteractEvent(entity.getBukkitEntity(), world.getWorld().getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ()));
+                world.getCraftServer().getPluginManager().callEvent((EntityInteractEvent) cancellable);
+            }
+
+            // We only want to block turning the plate on if all events are cancelled
+            if (!cancellable.isCancelled()) {
+                i++;
+            }
+        }
+
+        i = Math.min(i, this.maxWeight);
+        // CraftBukkit end
 
         if (i > 0) {
             float f = (float) Math.min(this.maxWeight, i) / (float) this.maxWeight;