Public API Reference

ivaria/collider.h

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/*
    Crystal Space 3D engine
    Copyright (C) 2000 by Jorrit Tyberghein

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#ifndef __CS_IVARIA_COLLIDER_H__
#define __CS_IVARIA_COLLIDER_H__

#include "csutil/scf_interface.h"
#include "csgeom/vector3.h"
#include "csutil/array.h"
#include "csutil/ref.h"

struct iPolygonMesh;
struct iTerraFormer;
struct iMeshObject;
class csReversibleTransform;

struct csCollisionPair
{

  csVector3 a1, b1, c1; 

  // Second triangle
  csVector3 a2, b2, c2; 
};

struct csIntersectingTriangle
{
  csVector3 a, b, c;
};



enum csColliderType
{
  CS_MESH_COLLIDER = 0,
  CS_TERRAFORMER_COLLIDER
};

struct iCollider : public virtual iBase
{
  SCF_INTERFACE (iCollider, 0, 2, 0);
  virtual csColliderType GetColliderType () = 0;
};

struct iCollideSystem : public virtual iBase
{
  SCF_INTERFACE (iCollideSystem, 2, 0, 0);
  virtual csPtr<iCollider> CreateCollider (iPolygonMesh* mesh) = 0;

  virtual csPtr<iCollider> CreateCollider (iTerraFormer* mesh) = 0;
  
  virtual bool Collide (
        iCollider* collider1, const csReversibleTransform* trans1,
        iCollider* collider2, const csReversibleTransform* trans2) = 0;

  virtual csCollisionPair* GetCollisionPairs () = 0;

  virtual size_t GetCollisionPairCount () = 0;

  virtual void ResetCollisionPairs () = 0;

  virtual bool CollideRay (
        iCollider* collider, const csReversibleTransform* trans,
        const csVector3& start, const csVector3& end) = 0;

  virtual bool CollideSegment (
        iCollider* collider, const csReversibleTransform* trans,
        const csVector3& start, const csVector3& end) = 0;

  virtual const csArray<csIntersectingTriangle>& GetIntersectingTriangles ()
        const = 0;

  virtual void SetOneHitOnly (bool o) = 0;

  virtual bool GetOneHitOnly () = 0;
};

#endif // __CS_IVARIA_COLLIDER_H__

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