optimise explosion damage further

and use the right entity for the dragon part damage

patches/server/Actually-optimise-explosions.patch

@@ -451,10 +451,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
                                      // Calculate damage separately for each EntityComplexPart
                                      if (list.contains(entityComplexPart)) {
 -                                        entityComplexPart.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entity));
-+                                        entityComplexPart.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entity, getSeenFraction(vec3d, entityComplexPart, blockCache, blockPos))); // Paper - actually optimise explosions
++                                        entityComplexPart.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entityComplexPart, getSeenFraction(vec3d, entityComplexPart, blockCache, blockPos))); // Paper - actually optimise explosions and use the right entity to calculate the damage
                                      }
                                  }
                              } else {
+-                                entity.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entity));
++                                entity.hurt(this.damageSource, this.damageCalculator.getEntityDamageAmount(this, entity, getSeenFraction(vec3d, entity, blockCache, blockPos))); // Paper - actually optimise explosions
+                             }
+ 
+                             CraftEventFactory.entityDamage = null;
 @@ -0,0 +0,0 @@ public class Explosion {
                              // CraftBukkit end
                          }
@@ -497,8 +502,10 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/world/level/ExplosionDamageCalculator.java
 +++ b/src/main/java/net/minecraft/world/level/ExplosionDamageCalculator.java
 @@ -0,0 +0,0 @@ public class ExplosionDamageCalculator {
+         return true;
      }
  
++    @io.papermc.paper.annotation.DoNotUse @Deprecated // Paper
      public float getEntityDamageAmount(Explosion explosion, Entity entity) {
 +        // Paper start - actually optimise explosions
 +        return this.getEntityDamageAmount(explosion, entity, Explosion.getSeenPercent(explosion.center(), entity));