PaperMC/paper-server/nms-patches/net/minecraft/world/level/block/BlockPressurePlateBinary.patch

--- a/net/minecraft/world/level/block/BlockPressurePlateBinary.java
+++ b/net/minecraft/world/level/block/BlockPressurePlateBinary.java
@@ -11,6 +11,11 @@
 import net.minecraft.world.level.block.state.properties.BlockSetType;
 import net.minecraft.world.level.block.state.properties.BlockStateBoolean;
 
+// CraftBukkit start
+import net.minecraft.world.entity.player.EntityHuman;
+import org.bukkit.event.entity.EntityInteractEvent;
+// CraftBukkit end
+
 public class BlockPressurePlateBinary extends BlockPressurePlateAbstract {
 
     public static final BlockStateBoolean POWERED = BlockProperties.POWERED;
@@ -34,7 +39,7 @@
 
     @Override
     protected int getSignalStrength(World world, BlockPosition blockposition) {
-        Class oclass;
+        Class<? extends Entity> oclass; // CraftBukkit
 
         switch (this.sensitivity) {
             case EVERYTHING:
@@ -49,7 +54,31 @@
 
         Class oclass1 = oclass;
 
-        return getEntityCount(world, BlockPressurePlateBinary.TOUCH_AABB.move(blockposition), oclass1) > 0 ? 15 : 0;
+        // CraftBukkit start - Call interact event when turning on a pressure plate
+        for (Entity entity : getEntities(world, BlockPressurePlateBinary.TOUCH_AABB.move(blockposition), oclass)) {
+            if (this.getSignalForState(world.getBlockState(blockposition)) == 0) {
+                org.bukkit.World bworld = world.getWorld();
+                org.bukkit.plugin.PluginManager manager = world.getCraftServer().getPluginManager();
+                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(), bworld.getBlockAt(blockposition.getX(), blockposition.getY(), blockposition.getZ()));
+                    manager.callEvent((EntityInteractEvent) cancellable);
+                }
+
+                // We only want to block turning the plate on if all events are cancelled
+                if (cancellable.isCancelled()) {
+                    continue;
+                }
+            }
+
+            return 15;
+        }
+
+        return 0;
+        // CraftBukkit end
     }
 
     @Override