1 files changed, 113 insertions, 0 deletions
diff --git a/Runtime/Physics2D/Physics2DManager.h b/Runtime/Physics2D/Physics2DManager.h
new file mode 100644
index 0000000..cef3917
--- /dev/null
+++ b/Runtime/Physics2D/Physics2DManager.h
@@ -0,0 +1,113 @@
+#pragma once
+
+#if ENABLE_2D_PHYSICS || DOXYGEN
+
+#include "Runtime/Interfaces/IPhysics2D.h"
+#include "Runtime/Math/Vector2.h"
+#include "Runtime/Math/Quaternion.h"
+#include "Runtime/Scripting/Backend/ScriptingTypes.h"
+#include "Runtime/Utilities/dynamic_array.h"
+#include "Runtime/Utilities/LinkedList.h"
+
+class Rigidbody2D;
+class Collider2D;
+class b2World;
+class b2Body;
+class Ray;
+struct Physics2DStats;
+
+#define PHYSICS_2D_RAYCAST_DISTANCE		(1e+5f)
+#define PHYSICS_2D_LARGE_RANGE_CLAMP	(1e+6f)
+#define PHYSICS_2D_SMALL_RANGE_CLAMP	(0.0001f)
+
+// --------------------------------------------------------------------------
+
+
+struct Rigidbody2DInterpolationInfo : public ListElement
+{
+	Vector3f		position;
+	Quaternionf		rotation;
+	Rigidbody2D*	body;
+	int				disabled;
+};
+
+
+// --------------------------------------------------------------------------
+
+
+struct RaycastHit2D
+{
+	Vector2f point;
+	Vector2f normal;
+	float fraction;
+	Collider2D* collider;
+};
+
+// --------------------------------------------------------------------------
+
+
+class Physics2DManager : public IPhysics2D
+{
+private:
+	typedef List<Rigidbody2DInterpolationInfo>	InterpolatedBodiesList;
+	typedef InterpolatedBodiesList::iterator	InterpolatedBodiesIterator;
+
+public:
+	Physics2DManager();
+	// ~Physics2DManager() // declared-by-macro
+
+	// IPhysics2D interface
+	virtual void FixedUpdate ();
+	virtual void DynamicUpdate ();
+	virtual void ResetInterpolations ();
+
+	// 2D line-casts.
+	int Linecast (const Vector2f& pointA, const Vector2f& pointB, const int layerMask, const float minDepth, const float maxDepth, RaycastHit2D* outHits, const int outHitsSize);
+	int LinecastAll (const Vector2f& pointA, const Vector2f& pointB, const int layerMask, const float minDepth, const float maxDepth, dynamic_array<RaycastHit2D>* outHits);
+
+	// 2D ray-casts.
+	int Raycast (const Vector2f& origin, const Vector2f& direction, const float distance, const int layerMask, const float minDepth, const float maxDepth, RaycastHit2D* outHits, const int outHitsSize);
+	int RaycastAll (const Vector2f& origin, const Vector2f& direction, const float distance, const int layerMask, const float minDepth, const float maxDepth, dynamic_array<RaycastHit2D>* outHits);
+
+	// 3D ray-intersections.
+	int GetRayIntersection(const Vector3f& origin, const Vector3f& direction, const float distance, const int layerMask, RaycastHit2D* outHits, const int outHitsSize);
+	int GetRayIntersectionAll(const Vector3f& origin, const Vector3f& direction, const float distance, const int layerMask, dynamic_array<RaycastHit2D>* outHits);
+
+	// 2D geometry overlaps.
+	int OverlapPoint (const Vector2f& point, const int layerMask, const float minDepth, const float maxDepth, Collider2D** outHits, const int outHitsSize);
+	int OverlapPointAll (const Vector2f& point, const int layerMask, const float minDepth, const float maxDepth, dynamic_array<Collider2D*>* outHits);
+	int OverlapCircle (const Vector2f& point, const float radius, const int layerMask, const float minDepth, const float maxDepth, Collider2D** outHits, const int outHitsSize);
+	int OverlapCircleAll (const Vector2f& point, const float radius, const int layerMask, const float minDepth, const float maxDepth, dynamic_array<Collider2D*>* outHits);
+	int OverlapArea (const Vector2f& pointA, const Vector2f& pointB, const int layerMask, const float minDepth, const float maxDepth, Collider2D** outHits, const int outHitsSize);
+	int OverlapAreaAll (const Vector2f& pointA, const Vector2f& pointB, const int layerMask, const float minDepth, const float maxDepth, dynamic_array<Collider2D*>* outHits);
+
+	void InvalidateColliderCollisions (Collider2D* collider);
+	void DestroyColliderCollisions (Collider2D* collider);
+
+	inline bool IsTransformMessageEnabled() const { return m_RigidbodyTransformMessageEnabled; }
+	inline List<Rigidbody2DInterpolationInfo>& GetInterpolatedBodies() { return m_InterpolatedBodies; }
+
+#if ENABLE_PROFILER
+	virtual void GetProfilerStats (Physics2DStats& stats);
+#endif
+
+private:
+	void SetTransformMessageEnabled (const bool enable);
+
+private:
+	std::vector<SInt32>		m_AllCollider2DTypes;
+	bool					m_RigidbodyTransformMessageEnabled;
+	InterpolatedBodiesList	m_InterpolatedBodies;
+};
+
+
+// --------------------------------------------------------------------------
+
+
+void InitializePhysics2DManager ();
+void CleanupPhysics2DManager ();
+b2World* GetPhysics2DWorld ();
+b2Body* GetPhysicsGroundBody ();
+Physics2DManager& GetPhysics2DManager ();
+
+#endif