Initial commit: Final state of the master project

Research/scene/Octree/ChildMask.h

@@ -0,0 +1,52 @@
+#pragma once
+#include "../../core/Defines.h"
+#include "../../core/BitHelper.h"
+
+struct ChildBits
+{
+	unsigned8 c0 : 1, c1 : 1, c2 : 1, c3 : 1, c4 : 1, c5 : 1, c6 : 1, c7 : 1;
+};
+union ChildMask
+{
+	ChildBits children;
+	unsigned8 mask;
+
+	ChildMask() : ChildMask(0) {}
+	ChildMask(unsigned8 mask) { this->mask = mask; }
+
+	inline bool Get(ChildIndex index) const {
+		return BitHelper::GetLS(mask, index);
+		//switch (index)
+		//{
+		//case 0: return children.c0;
+		//case 1: return children.c1;
+		//case 2: return children.c2;
+		//case 3: return children.c3;
+		//case 4: return children.c4;
+		//case 5: return children.c5;
+		//case 6: return children.c6;
+		//case 7: return children.c7;
+		//}
+		//return false;
+	}
+
+	inline void Set(ChildIndex index, bool value)
+	{
+		BitHelper::SetLS(mask, index, value);
+		//switch (index)
+		//{
+		//case 0: children.c0 = value; break;
+		//case 1: children.c1 = value; break;
+		//case 2: children.c2 = value; break;
+		//case 3: children.c3 = value; break;
+		//case 4: children.c4 = value; break;
+		//case 5: children.c5 = value; break;
+		//case 6: children.c6 = value; break;
+		//case 7: children.c7 = value; break;
+		//}
+	}
+
+	// Use bit-tricks to count the number of set bits before a certain positions
+	inline unsigned8 GetSetBefore(ChildIndex pos) const { return BitHelper::GetHSSetBefore(mask, pos); }
+	inline unsigned8 GetSet() const { return BitHelper::GetSet(mask); }
+};