Project modernization (#630)

* 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

Minecraft.Client/SpiderModel.cpp

@@ -11,48 +11,48 @@ SpiderModel::SpiderModel() : Model()
 
     head = new ModelPart(this, 32, 4);
     head->addBox(-4, -4, -8, 8, 8, 8, g); // Head
-    head->setPos(0, (float)(0+yo), -3);
+    head->setPos(0, static_cast<float>(0 + yo), -3);
 
     body0 = new ModelPart(this, 0, 0);
     body0->addBox(-3, -3, -3, 6, 6, 6, g); // Body
-    body0->setPos(0,(float)(yo), 0);
+    body0->setPos(0,static_cast<float>(yo), 0);
 
     body1 = new ModelPart(this, 0, 12);
     body1->addBox(-5, -4, -6, 10, 8, 12, g); // Body
-    body1->setPos(0, (float)(0+yo), 3 + 6);
+    body1->setPos(0, static_cast<float>(0 + yo), 3 + 6);
 
 
     leg0 = new ModelPart(this, 18, 0);
     leg0->addBox(-15, -1, -1, 16, 2, 2, g); // Leg0
-    leg0->setPos(-4, (float)(0+yo), 2);
+    leg0->setPos(-4, static_cast<float>(0 + yo), 2);
 
     leg1 = new ModelPart(this, 18, 0);
     leg1->addBox(-1, -1, -1, 16, 2, 2, g); // Leg1
-    leg1->setPos(4, (float)(0+yo), 2);
+    leg1->setPos(4, static_cast<float>(0 + yo), 2);
 
     leg2 = new ModelPart(this, 18, 0);
     leg2->addBox(-15, -1, -1, 16, 2, 2, g); // Leg2
-    leg2->setPos(-4, (float)(0+yo), 1);
+    leg2->setPos(-4, static_cast<float>(0 + yo), 1);
 
     leg3 = new ModelPart(this, 18, 0);
     leg3->addBox(-1, -1, -1, 16, 2, 2, g); // Leg3
-    leg3->setPos(4, (float)(0+yo), 1);
+    leg3->setPos(4, static_cast<float>(0 + yo), 1);
 
     leg4 = new ModelPart(this, 18, 0);
     leg4->addBox(-15, -1, -1, 16, 2, 2, g); // Leg0
-    leg4->setPos(-4, (float)(0+yo), 0);
+    leg4->setPos(-4, static_cast<float>(0 + yo), 0);
 
     leg5 = new ModelPart(this, 18, 0);
     leg5->addBox(-1, -1, -1, 16, 2, 2, g); // Leg1
-    leg5->setPos(4, (float)(0+yo), 0);
+    leg5->setPos(4, static_cast<float>(0 + yo), 0);
 
     leg6 = new ModelPart(this, 18, 0);
     leg6->addBox(-15, -1, -1, 16, 2, 2, g); // Leg2
-    leg6->setPos(-4, (float)(0+yo), -1);
+    leg6->setPos(-4, static_cast<float>(0 + yo), -1);
 
     leg7 = new ModelPart(this, 18, 0);
     leg7->addBox(-1, -1, -1, 16, 2, 2, g); // Leg3
-    leg7->setPos(4, (float)(0+yo), -1);
+    leg7->setPos(4, static_cast<float>(0 + yo), -1);
 
 	// 4J added - compile now to avoid random performance hit first time cubes are rendered
     head->compile(1.0f/16.0f);