craftbukkit/nms-patches/net/minecraft/world/entity/ambient/EntityBat.patch

--- a/net/minecraft/world/entity/ambient/EntityBat.java
+++ b/net/minecraft/world/entity/ambient/EntityBat.java
@@ -30,6 +30,10 @@
 import net.minecraft.world.level.levelgen.HeightMap;
 import net.minecraft.world.phys.Vec3D;
 
+// CraftBukkit start
+import org.bukkit.craftbukkit.event.CraftEventFactory;
+// CraftBukkit end
+
 public class EntityBat extends EntityAmbient {
 
     public static final float FLAP_LENGTH_SECONDS = 0.5F;
@@ -144,13 +148,13 @@
                     this.yHeadRot = (float) this.random.nextInt(360);
                 }
 
-                if (worldserver.getNearestPlayer(EntityBat.BAT_RESTING_TARGETING, this) != null) {
+                if (worldserver.getNearestPlayer(EntityBat.BAT_RESTING_TARGETING, this) != null && CraftEventFactory.handleBatToggleSleepEvent(this, true)) { // CraftBukkit - Call BatToggleSleepEvent
                     this.setResting(false);
                     if (!flag) {
                         worldserver.levelEvent((EntityHuman) null, 1025, blockposition, 0);
                     }
                 }
-            } else {
+            } else if (CraftEventFactory.handleBatToggleSleepEvent(this, true)) { // CraftBukkit - Call BatToggleSleepEvent
                 this.setResting(false);
                 if (!flag) {
                     worldserver.levelEvent((EntityHuman) null, 1025, blockposition, 0);
@@ -177,7 +181,7 @@
 
             this.zza = 0.5F;
             this.setYRot(this.getYRot() + f1);
-            if (this.random.nextInt(100) == 0 && worldserver.getBlockState(blockposition1).isRedstoneConductor(worldserver, blockposition1)) {
+            if (this.random.nextInt(100) == 0 && worldserver.getBlockState(blockposition1).isRedstoneConductor(worldserver, blockposition1) && CraftEventFactory.handleBatToggleSleepEvent(this, false)) { // CraftBukkit - Call BatToggleSleepEvent
                 this.setResting(true);
             }
         }
@@ -202,7 +206,7 @@
         if (this.isInvulnerableTo(worldserver, damagesource)) {
             return false;
         } else {
-            if (this.isResting()) {
+            if (this.isResting() && CraftEventFactory.handleBatToggleSleepEvent(this, true)) { // CraftBukkit - Call BatToggleSleepEvent
                 this.setResting(false);
             }