InputGeom.h

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//
// Copyright (c) 2009-2010 Mikko Mononen memon@inside.org
//
// This software is provided 'as-is', without any express or implied
// warranty.  In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
//    claim that you wrote the original software. If you use this software
//    in a product, an acknowledgment in the product documentation would be
//    appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
//    misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
//

#ifndef INPUTGEOM_H
#define INPUTGEOM_H

#include "ChunkyTriMesh.h"
#include "MeshLoaderObj.h"

static const int MAX_CONVEXVOL_PTS = 12;
struct ConvexVolume
{
        float verts[MAX_CONVEXVOL_PTS*3];
        float hmin, hmax;
        int nverts;
        int area;
};

class InputGeom
{
        rcChunkyTriMesh* m_chunkyMesh;
        rcMeshLoaderObj* m_mesh;
        float m_meshBMin[3], m_meshBMax[3];
        
        static const int MAX_OFFMESH_CONNECTIONS = 256;
        float m_offMeshConVerts[MAX_OFFMESH_CONNECTIONS*3*2];
        float m_offMeshConRads[MAX_OFFMESH_CONNECTIONS];
        unsigned char m_offMeshConDirs[MAX_OFFMESH_CONNECTIONS];
        unsigned char m_offMeshConAreas[MAX_OFFMESH_CONNECTIONS];
        unsigned short m_offMeshConFlags[MAX_OFFMESH_CONNECTIONS];
        unsigned int m_offMeshConId[MAX_OFFMESH_CONNECTIONS];
        int m_offMeshConCount;

        static const int MAX_VOLUMES = 256;
        ConvexVolume m_volumes[MAX_VOLUMES];
        int m_volumeCount;
        
public:
        InputGeom();
        ~InputGeom();
        
        bool loadMesh(class rcContext* ctx, const char* filepath);
        
        bool load(class rcContext* ctx, const char* filepath);
        bool save(const char* filepath);
        
        inline const rcMeshLoaderObj* getMesh() const { return m_mesh; }
        inline const float* getMeshBoundsMin() const { return m_meshBMin; }
        inline const float* getMeshBoundsMax() const { return m_meshBMax; }
        inline const rcChunkyTriMesh* getChunkyMesh() const { return m_chunkyMesh; }
        bool raycastMesh(float* src, float* dst, float& tmin);

        int getOffMeshConnectionCount() const { return m_offMeshConCount; }
        const float* getOffMeshConnectionVerts() const { return m_offMeshConVerts; }
        const float* getOffMeshConnectionRads() const { return m_offMeshConRads; }
        const unsigned char* getOffMeshConnectionDirs() const { return m_offMeshConDirs; }
        const unsigned char* getOffMeshConnectionAreas() const { return m_offMeshConAreas; }
        const unsigned short* getOffMeshConnectionFlags() const { return m_offMeshConFlags; }
        const unsigned int* getOffMeshConnectionId() const { return m_offMeshConId; }
        void addOffMeshConnection(const float* spos, const float* epos, const float rad,
                                                          unsigned char bidir, unsigned char area, unsigned short flags);
        void deleteOffMeshConnection(int i);
        void drawOffMeshConnections(struct duDebugDraw* dd, bool hilight = false);

        int getConvexVolumeCount() const { return m_volumeCount; }
        const ConvexVolume* getConvexVolumes() const { return m_volumes; }
        void addConvexVolume(const float* verts, const int nverts,
                                                 const float minh, const float maxh, unsigned char area);
        void deleteConvexVolume(int i);
        void drawConvexVolumes(struct duDebugDraw* dd, bool hilight = false);
};

#endif // INPUTGEOM_H