Modernize project codebase (#906)

* Fixed boats falling and a TP glitch #266

* Replaced every C-style cast with C++ ones

* Replaced every C-style cast with C++ ones

* Fixed boats falling and a TP glitch #266

* Updated NULL to nullptr and fixing some type issues

* Modernized and fixed a few bugs

- Replaced most instances of `NULL` with `nullptr`.
- Replaced most `shared_ptr(new ...)` with `make_shared`.
- Removed the `nullptr` macro as it was interfering with the actual nullptr keyword in some instances.

* Fixing more conflicts

* Replace int loops with size_t and start work on overrides

* Add safety checks and fix a issue with vector going OOR

1 files changed, 2 insertions, 2 deletions

diff --git a/Minecraft.World/SitGoal.cpp b/Minecraft.World/SitGoal.cpp
index b79b2df7..7b04a5f6 100644
--- a/Minecraft.World/SitGoal.cpp
+++ b/Minecraft.World/SitGoal.cpp
@@ -21,9 +21,9 @@ bool SitGoal::canUse()
 	if (!mob->onGround) return false;
 
 	shared_ptr<LivingEntity> owner = dynamic_pointer_cast<LivingEntity>( mob->getOwner() );
-	if (owner == NULL) return true; // owner not on level
+	if (owner == nullptr) return true; // owner not on level
 
-	if (mob->distanceToSqr(owner) < FollowOwnerGoal::TeleportDistance * FollowOwnerGoal::TeleportDistance && owner->getLastHurtByMob() != NULL) return false;
+	if (mob->distanceToSqr(owner) < FollowOwnerGoal::TeleportDistance * FollowOwnerGoal::TeleportDistance && owner->getLastHurtByMob() != nullptr) return false;
 
 	return _wantToSit;
 }