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.World/HellDimension.cpp

@@ -23,9 +23,9 @@ Vec3 *HellDimension::getFogColor(float td, float a) const
 	byte greenComponent = ((colour>>8)&0xFF);
 	byte blueComponent = ((colour)&0xFF);
 
-	float rr = (float)redComponent/256;//0.2f;
-	float gg = (float)greenComponent/256;//0.03f;
-	float bb = (float)blueComponent/256;//0.03f;
+	float rr = static_cast<float>(redComponent)/256;//0.2f;
+	float gg = static_cast<float>(greenComponent)/256;//0.03f;
+	float bb = static_cast<float>(blueComponent)/256;//0.03f;
 	return Vec3::newTemp(rr, gg, bb);
 }
 
@@ -34,7 +34,7 @@ void HellDimension::updateLightRamp()
     float ambientLight = 0.10f;
     for (int i = 0; i <= Level::MAX_BRIGHTNESS; i++)
 	{
-        float v = (1 - i / (float) (Level::MAX_BRIGHTNESS));
+        float v = (1 - i / static_cast<float>(Level::MAX_BRIGHTNESS));
         brightnessRamp[i] = ((1 - v) / (v * 3 + 1)) * (1 - ambientLight) + ambientLight;
     }
 }
@@ -85,5 +85,5 @@ bool HellDimension::isFoggyAt(int x, int z)
 
 int HellDimension::getXZSize()
 {
-	return ceil((float)level->getLevelData()->getXZSize() / level->getLevelData()->getHellScale());
+	return ceil(static_cast<float>(level->getLevelData()->getXZSize()) / level->getLevelData()->getHellScale());
 }