1 files changed, 90 insertions, 0 deletions

diff --git a/src/BoundingBox.h b/src/BoundingBox.h
new file mode 100644
index 000000000..ff9963989
--- /dev/null
+++ b/src/BoundingBox.h
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+
+// BoundingBox.h
+
+// Declares the cBoundingBox class representing an axis-aligned bounding box with floatingpoint coords
+
+
+
+
+#pragma once
+
+#include "Vector3d.h"
+
+
+
+
+
+// tolua_begin
+
+/** Represents two sets of coords, minimum and maximum for each direction.
+All the coords within those limits (inclusive the edges) are considered "inside" the box.
+For intersection purposes, though, if the intersection is "sharp" in any coord (i. e. zero volume),
+the boxes are considered non-intersecting.
+*/
+class cBoundingBox
+{
+public:
+	cBoundingBox(double a_MinX, double a_MaxX, double a_MinY, double a_MaxY, double a_MinZ, double a_MaxZ);
+	cBoundingBox(const Vector3d & a_Min, const Vector3d & a_Max);
+	cBoundingBox(const Vector3d & a_Pos, double a_Radius, double a_Height);
+	cBoundingBox(const cBoundingBox & a_Orig);
+	
+	/// Moves the entire boundingbox by the specified offset
+	void Move(double a_OffX, double a_OffY, double a_OffZ);
+	
+	/// Moves the entire boundingbox by the specified offset
+	void Move(const Vector3d & a_Off);
+	
+	/// Expands the bounding box by the specified amount in each direction (so the box becomes larger by 2 * Expand in each direction)
+	void Expand(double a_ExpandX, double a_ExpandY, double a_ExpandZ);
+	
+	/// Returns true if the two bounding boxes intersect
+	bool DoesIntersect(const cBoundingBox & a_Other);
+	
+	/// Returns the union of the two bounding boxes
+	cBoundingBox Union(const cBoundingBox & a_Other);
+	
+	/// Returns true if the point is inside the bounding box
+	bool IsInside(const Vector3d & a_Point);
+	
+	/// Returns true if the point is inside the bounding box
+	bool IsInside(double a_X, double a_Y,double a_Z);
+	
+	/// Returns true if a_Other is inside this bounding box
+	bool IsInside(cBoundingBox & a_Other);
+	
+	/// Returns true if a boundingbox specified by a_Min and a_Max is inside this bounding box
+	bool IsInside(const Vector3d & a_Min, const Vector3d & a_Max);
+	
+	/// Returns true if the specified point is inside the bounding box specified by its min/max corners
+	static bool IsInside(const Vector3d & a_Min, const Vector3d & a_Max, const Vector3d & a_Point);
+	
+	/// Returns true if the specified point is inside the bounding box specified by its min/max corners
+	static bool IsInside(const Vector3d & a_Min, const Vector3d & a_Max, double a_X, double a_Y, double a_Z);
+	
+	/** Returns true if this bounding box is intersected by the line specified by its two points
+	Also calculates the distance along the line in which the intersection occurs (0 .. 1)
+	Only forward collisions (a_LineCoeff >= 0) are returned.
+	*/
+	bool CalcLineIntersection(const Vector3d & a_Line1, const Vector3d & a_Line2, double & a_LineCoeff, char & a_Face);
+	
+	/** Returns true if the specified bounding box is intersected by the line specified by its two points
+	Also calculates the distance along the line in which the intersection occurs (0 .. 1) and the face hit (BLOCK_FACE_ constants)
+	Only forward collisions (a_LineCoeff >= 0) are returned.
+	*/
+	static bool CalcLineIntersection(const Vector3d & a_Min, const Vector3d & a_Max, const Vector3d & a_Line1, const Vector3d & a_Line2, double & a_LineCoeff, char & a_Face);
+	
+	// tolua_end
+	
+	/// Calculates the intersection of the two bounding boxes; returns true if nonempty
+	bool Intersect(const cBoundingBox & a_Other, cBoundingBox & a_Intersection);
+	
+protected:
+	Vector3d m_Min;
+	Vector3d m_Max;
+	
+} ;  // tolua_export
+
+
+
+