/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
#ifndef PL_RTLIGHT_BASE_H
#define PL_RTLIGHT_BASE_H

// Max related headers
#include "max.h"
#include "iparamb2.h"
#include "iparamm2.h"

// Our generic headers
#include "hsTypes.h"
#include "../MaxPlasmaMtls/Layers/plLayerTex.h"


extern TCHAR *GetString(int id);



extern HINSTANCE hInstance;

#define RTOMNI_LIGHT_CLASSID    Class_ID(0x57cf7089, 0x282e5b71)
#define RTSPOT_LIGHT_CLASSID    Class_ID(0x2b263fdd, 0x19c4351f)
#define RTTSPOT_LIGHT_CLASSID   Class_ID(0x48cb06ab, 0x3c142832)
#define RTDIR_LIGHT_CLASSID     Class_ID(0x5a6d278c, 0x780a78b1)
// Projected Directional Light
#define RTPDIR_LIGHT_CLASSID    Class_ID(0x2f611934, 0x3681ff0)



#define FOREVER Interval(TIME_NegInfinity, TIME_PosInfinity)

#define DEF_TDIST       240.0f // 160.0f

#define NUM_HALF_ARC    5
#define NUM_ARC_PTS     (2*NUM_HALF_ARC+1)
#define NUM_CIRC_PTS    28
#define SEG_INDEX       7

#define ATTEN_START     2  // far
#define ATTEN_END       3  // far


#define WM_SET_TYPE     WM_USER + 0x04002


inline float MaxF(float a, float b) { return a>b?a:b; }
inline float MinF(float a, float b) { return a<b?a:b; }

class plMaxNode;
class ClassDesc2;


///////////////////////////////////////////////////////////////////////////////
//// Base LightDlgProc ////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////

class plRTLightBase;

class plBaseLightProc : public ParamMap2UserDlgProc
{
    protected:
        void            ILoadComboBox( HWND hComboBox, const char *names[] );
        void            IBuildLightMesh( plRTLightBase *base, float coneSize );

    public:
        virtual BOOL    DlgProc( TimeValue t, IParamMap2 *map, HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam );
};

///////////////////////////////////////////////////////////////////////////////
//// plLightTexPBAccessor /////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////

class plLightTexPBAccessor : public PBAccessor
{
    public:
        void Set( PB2Value& val, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t );
        void Get( PB2Value& v, ReferenceMaker* owner, ParamID id, int tabIndex, TimeValue t, Interval &valid );

        static plLightTexPBAccessor *Instance( void ) { return &fAccessor; }

    protected:

        static plLightTexPBAccessor fAccessor;
};

///////////////////////////////////////////////////////////////////////////////
//// plRTLightBase Class //////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////

class plRTLightBase : public GenLight
{

protected:
    ClassDesc2   *fClassDesc;   // Must set in derived classes constructor
    Color        fColor;        // Color of mesh
    Mesh         fMesh;         // Mesh to draw
    IParamBlock2 *fLightPB;     // The derived component's paramblock (optional)
    plLayerTex*  fTex;


    virtual hsBool  IHasAttenuation( void ) { return false; }
    virtual void    IBuildMeshes( BOOL isNew ) {}

    void    BuildStaticMeshes();
    void    BuildSpotMesh(float coneSize);
    int     meshBuilt;
    int     extDispFlags;

    
    Mesh    staticMesh[2];
    Mesh    spotMesh;


public:
    friend class plBaseLightProc;
    friend class plLightTexPBAccessor;
    friend class SetTypeRest;

    ExclList exclList;
    IObjParam    *fIP;



    enum LightType
    {
        RT_OMNI,
        RT_TARGET_SPOT,
        RT_FREE_SPOT,
        RT_TARGET_DIR,
        RT_FREE_DIR
    };


    //// NOTE /////////////////////////////////////////////////////////////////////
    //  I would've overhauled this entire system to be far more sane, but doing
    //  so would break every scene with RT lights that the artists have (as in
    //  they would crash and burn, or at best just not read in). As a result,
    //  as much as it annoys me to death, we can't do a damn thing about it.
    //  Hopefully, in the future we will be able to clean all of this out somehow
    //  (a conversion utility might come in handy, dunno). 
    //
    //  For reference, the setup SHOULD have separate paramBlocks for each rollout,
    //  using the P_USE_PARAMS to duplicate the shared ones, and all the rollouts
    //  should have *IDENTICAL* block and ref #s, so the shared code actually looks
    //  sane. The final block/ref #s needed would be kBlkMain, kBlkAnim, kBlkProj 
    //  (for spots and proj dir) and kBlkAttenuation (projMaps don't need ref #s, 
    //  since they're part of the paramBlocks).
    ///////////////////////////////////////////////////////////////////////////////

    // Blk Numbers
    enum BlkNumber
    {
        // Old numbers. Phase out when possible
        kBlkGeneralLightProp,
        kBlkAttenLightProp,
        kBlkOmniLightProp,
        kBlkOtherLightProp,
        kBlkOmniLight,
        kBlkSpotLight,
        kBlkTSpotLight,
        kBlkDirLight,
        kBlkTDirLight,

        // New ones
        kBlkMain = 0,
        kBlkAnim = 9,

        kBlkDerivedStart = 20
    };

    // Ref numbers
    enum    RefNumber
    {
        kRefGeneralLightProp,
        kRefProjMap,
        kRefShadowProjMap,
        kRefShadowType,
        kRefOmniLight,
        kRefSpotLight,
        kRefTSpotLight,
        kRefDirLight,
        kRefTDirLight,
        kRefProjDirLight,
        kRefAnimParams_DEAD,

        kNumRefs,

        kRefDerivedStart = 30
    };

    //Multimap Support?
    enum    MapChoice
    {
        kLightMap1,
        kLightMap2,
        kLightMap3,
        kLightMap4,
        kLightMap5,
        kLightMap6
    };

    enum    ParamVals
    {
        kLightType,         //Inserted in v1, Removed in v4
        kAffectDiffuse,     //Inserted in v1
        kLightColor,        //Inserted in v1
        kLightExclude,      //Inserted in v1
        kCastShadows,       //Inserted in v2, OBSOLETE
        kIntensity,         //Inserted in v1
        kContrast,          //Inserted in v1
        kDiffSoft,          //Inserted in v1
        kDiffOn,            //Inserted in v1
        kSpec,              //Inserted in v1
        kAmbiOnly,          //Inserted in v1
        kStartAttenNear,     //Inserted in v1, Removed in v3
        kEndAttenNear,       //Inserted in v1, Removed in v3
        kUseNearAtten,       //Inserted in v1, Removed in v3
        kShowNearAttenRanges,//Inserted in v1, Removed in v3
        kStartAttenFar,      //Inserted in v1, Removed in v3
        kEndAttenFar,        //Inserted in v1, Removed in v3
        kUseFarAtten,        //Inserted in v1, Removed in v3
        kShowFarAttenRanges, //Inserted in v1, Removed in v3
        kLightDecay,         //Inserted in v1, Removed in v3
        kDecayEdit,          //Inserted in v1, Removed in v3
        kShowDecay,          //Inserted in v1, Removed in v3
        kUseProjectBool,    //Inserted in v1
        kProjMapTexButton,  //Inserted in v1
        kShowConeBool,      //Inserted in v1
        kOvershootBool,     //Inserted in v1, Removed in v2
        kHotSpot,           //Inserted in v1
        kFallOff,           //Inserted in v1
        kLightShapeRadio,   //Inserted in v1, Removed in v2
        kAspect,            //Inserted in v1, Removed in v2
        kUseProjectorBool,  //Inserted in v1
        kProjMapTexButton2, //Inserted in v1
        kTargetDist,        //Inserted in v1
        
        kShadowOn,          //Inserted in v2
        kShadowChoice,      //Inserted in v2
        kUseShadGlobal,     //Inserted in v2
        kShadowColor,       //Inserted in v2
        kShadowDensity,     //Inserted in v2
        kUseShadMapBool,    //Inserted in v2
        kShadMapButton,     //Inserted in v2
        kLightColorEffects, //Inserted in v2
        kAtmosShadowsBool,  //Inserted in v2
        kAtmosShadOpacity,  //Inserted in v2
        kAtmosShadColor,    //Inserted in v2
        kShadMapBias,       //Inserted in v2
        kShadMapSize,       //Inserted in v2
        kShadSampleRange,   //Inserted in v2
        kAbsoluteShadBias,  //Inserted in v2

        kUseAttenuationBool,//Inserted in v3
        kAttenMaxFalloffEdit, //Inserted in v3
        kAttenTypeRadio,    //Inserted in v3
        kSpecularColorSwatch,//Inserted in v3

        kAttenSlider,
        kLightOn,
        kAmbientOnlyStub,

        kProjTypeRadio,
        kProjNoCompress,
        kProjNoMip
    };

    // Projection types.
    enum
    {
        kIlluminate, 
        kAdd, 
        kMult, 
        kMADD
    };
    
    // Animation rollout parameters
    enum
    {
        kAnimName,
        kAnimAutoStart,
        kAnimLoop,
        kAnimLoopName
    };
    
    plRTLightBase() { }//meshBuilt = 0; fClassDesc = NULL;  fLightPB = NULL; fIP = NULL; BuildMeshes(true); }
    virtual ~plRTLightBase();
    void DeleteThis() { delete this; }

    static ParamBlockDesc2  *GetAnimPBDesc( void );

    TCHAR* GetObjectName()      { return (TCHAR*)fClassDesc->ClassName(); }
    void GetClassName(TSTR& s)  { s = fClassDesc->ClassName(); }

    virtual IParamBlock2 *GetParamBlock( int i );
    virtual IParamBlock2* GetParamBlock2();
    virtual IParamBlock2* GetParamBlockByID(short id);
    plLayerTex*   GetTex() { return fTex; }
    // So our animatables will show up in the trackview
    virtual int NumParamBlocks() { return 1; }
    virtual int NumSubs();
    virtual Animatable* SubAnim(int i);
    virtual TSTR SubAnimName(int i);

    // plug-in mouse creation callback
    CreateMouseCallBack* GetCreateMouseCallBack();
    RefTargetHandle Clone(RemapDir &remap = NoRemap()){ plRTLightBase* thisObj = TRACKED_NEW plRTLightBase(); BaseClone(this, thisObj, remap); return thisObj;}
    
    virtual void BeginEditParams(IObjParam *ip, ULONG flags, Animatable *prev);
    virtual void EndEditParams(IObjParam *ip, ULONG flags, Animatable *next);
    
    // main function that will build our mesh
    void FreeCaches();
    
    // retreives bounding box in object space/world space
    void GetLocalBoundBox(TimeValue t, INode *node, ViewExp *vpt, Box3 &box);
    void GetWorldBoundBox(TimeValue t, INode *node, ViewExp *vpt, Box3 &box);
    
    // main display function for this object
    int Display(TimeValue t, INode *node, ViewExp *vpt, int flags);
    virtual int DrawConeAndLine(TimeValue t, INode* inode, GraphicsWindow *gw, int drawing );
    void GetConePoints(TimeValue t, float aspect, float angle, float dist, Point3 *q);
    virtual void DrawCone(TimeValue t, GraphicsWindow *gw, float dist);
    int GetSpotShape(void){ return 0; }
    void SetExtendedDisplay(int flags){ extDispFlags = flags; }
    void BoxCircle(TimeValue t, float r, float d, Box3& box, int extraPt, Matrix3 *tm);
    void BoxDirPoints(TimeValue t, float angle, float dist, Box3 &box, Matrix3 *tm);
    void BoxPoints(TimeValue t, float angle, float dist, Box3 &box, Matrix3 *tm);

    void    DrawArrow( TimeValue t, GraphicsWindow *gw, Point3 &direction, float dist );
    
    void GetAttenPoints(TimeValue t, float rad, Point3 *q);
    int GetRectXPoints(TimeValue t, float angle, float dist, Point3 *q);
    int GetCirXPoints(TimeValue t, float angle, float dist, Point3 *q);
    void DrawSphereArcs(TimeValue t, GraphicsWindow *gw, float r, Point3 *q);
    
//
    void DrawX(TimeValue t, float asp, int npts, float dist, GraphicsWindow *gw, int indx); 
    void DrawCircleX(TimeValue t, GraphicsWindow *gw, float angle, float dist, Point3 *q);
    void DrawWarpRect(TimeValue t, GraphicsWindow *gw, float angle, float dist, Point3 *q);
    void DrawAttenCirOrRect(TimeValue t, GraphicsWindow *gw, float dist, BOOL froze, int uicol);
    int DrawAtten(TimeValue t, INode *inode, GraphicsWindow *gw);
    
    
    
    
    //void SetType(int tp);

    

    // hit testing of this object
    int HitTest(TimeValue t, INode *node, int type, int crossing, int flags, IPoint2 *p, ViewExp *vpt);
    
    void Snap(TimeValue t, INode* inode, SnapInfo *snap, IPoint2 *p, ViewExp *vpt);
    void GetDeformBBox(TimeValue t, Box3& box, Matrix3 *tm, BOOL useSel );


    //Internal routines
    void BoxLight(TimeValue t, INode *inode, Box3& box, Matrix3 *tm);
    void GetMat(TimeValue t, INode* inode, ViewExp *vpt, Matrix3& tm);

    virtual RefTargetHandle GetReference(int i);
    virtual void SetReference(int ref, RefTargetHandle rtarg);
    virtual int NumRefs() { return kNumRefs;}
    
    RefResult NotifyRefChanged(Interval changeInt, RefTargetHandle hTarget, PartID& partID, RefMessage message);

    // Called to retreive the state of this object at the specified time.
    ObjectState Eval(TimeValue t) { return ObjectState(this); }

    const char *GetCategory(){ return fClassDesc->Category(); }

    //
    //  LightObject Specific Stuff below
    //
    //

    virtual BOOL IsSpot( void ) { return FALSE; }
    virtual BOOL IsDir( void )  { return FALSE; }

    RefResult EvalLightState(TimeValue time, Interval& valid, LightState *ls);
    ObjLightDesc *CreateLightDesc(INode *n, BOOL forceShadowBuffer=FALSE);
    void SetUseLight(int onOff) { fLightPB->SetValue(kLightOn, 0, onOff); NotifyDependents(FOREVER, PART_OBJ, REFMSG_CHANGE); }
    BOOL GetUseLight(void) { BOOL v; fLightPB->GetValue(kLightOn, 0, v, FOREVER); return v; }
    void SetHotspot(TimeValue time, float f); 
    float GetHotspot(TimeValue t, Interval& valid = Interval(0,0));
    void SetFallsize(TimeValue time, float f); 
    float GetFallsize(TimeValue t, Interval& valid = Interval(0,0));
    void SetAtten(TimeValue time, int which, float f);
    float GetAtten(TimeValue t, int which, Interval& valid = Interval(0,0));
    
    // TDist funcs needs implementation  as of 31/5/01
    void SetTDist(TimeValue time, float f); 
    float GetTDist(TimeValue t, Interval& valid = Interval(0,0));

    void SetConeDisplay(int s, int notify=TRUE);
    BOOL GetConeDisplay(void);

    void SetRGBColor(TimeValue t, Point3& rgb); //fLightPB->SetValue(kRGB, t, rgb); NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);}
    Point3 GetRGBColor(TimeValue t, Interval &valid = Interval(0,0)); //return fLightPB->GetPoint3(kRGB, t); }        
    void SetIntensity(TimeValue t, float f) { fLightPB->SetValue(kIntensity, t, f); NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);}
    float GetIntensity(TimeValue t, Interval& valid = Interval(0,0)) {return fLightPB->GetFloat(kIntensity, t); }
    void SetAspect(TimeValue t, float f) {}
    float GetAspect(TimeValue t, Interval& valid = Interval(0,0)) { return 0.0; }    
    void SetUseAtten(int s){ fLightPB->SetValue(kUseAttenuationBool, 0, s); NotifyDependents(FOREVER, PART_OBJ, REFMSG_CHANGE); }
    BOOL GetUseAtten(void) {return fLightPB->GetInt(kUseAttenuationBool, 0);}
    void SetUseAttenNear(int s) {  }
    BOOL GetUseAttenNear(void) {return false;}
    void SetAttenDisplay(int s){  }
    BOOL GetAttenDisplay(void) {return fLightPB->GetInt(kUseAttenuationBool, 0);}      
    void SetAttenDisplayNear(int s){ }
    BOOL GetAttenDisplayNear(void){return false;}      
    void Enable(int enab) { fLightPB->SetValue(kLightOn, 0, enab); }
    void SetMapBias(TimeValue t, float f) {}
    float GetMapBias(TimeValue t, Interval& valid = Interval(0,0)){return 0.0f;}
    void SetMapRange(TimeValue t, float f) {}
    float GetMapRange(TimeValue t, Interval& valid = Interval(0,0)) {return 0.0f;}
    void SetMapSize(TimeValue t, int f) {}
    int GetMapSize(TimeValue t, Interval& valid = Interval(0,0)){return 0;}
    void SetRayBias(TimeValue t, float f) {}
    float GetRayBias(TimeValue t, Interval& valid = Interval(0,0)) {return 0.0;} //{return 0.0f;}
    int GetAbsMapBias() {return 0;}
    void SetAbsMapBias(int a) {}
    int GetOvershoot(){return 0;}
    void SetOvershoot(int a){}
    virtual int GetProjector() { return 0; }
    void SetProjector(int a){fLightPB->SetValue(kUseProjectorBool, 0, a); }
    ExclList* GetExclList(){return NULL;}
    BOOL Include() {return false;}
    virtual Texmap* GetProjMap(); //{ Interval valid = Interval(0,0); Texmap* MyMap; fLightPB->GetValue(kProjMapTexButton, 0, MyMap, valid); return MyMap; }
    void SetProjMap(BitmapInfo* pmap);
    void UpdateTargDistance(TimeValue t, INode* inode);

    // GenLight Specific Stuff below

    BOOL GetUseGlobal() { return false; }   //Global Shadow param
    void SetUseGlobal(int a) {}
    BOOL GetShadow();
    void SetShadow(int a);
    BOOL GetShadowType() { return -1; } //No Shadows generated ....
    void SetShadowType(int a) {}        //Until implemented....
    GenLight* NewLight(int type) { return NULL;} 
    int Type()  {return -1;}
    void SetSpotShape(int a) {}
    void SetHSVColor(TimeValue t, class Point3 &b);
    Point3 GetHSVColor(TimeValue t, Interval& b);
    void SetContrast(int a, float other) {} // fLightPB->SetValue(kContrast, a, other); NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);}
    float GetContrast(int a, Interval &valid) {return 0.0;} //float f; f = fLightPB->GetFloat(kContrast, a); return f;}
    void SetAttenNearDisplay(int a) {}
    BOOL GetAttenNearDisplay() {return false;}
    ExclList& GetExclusionList() {return exclList;}
    void SetExclusionList(ExclList & a) {}
    BOOL SetHotSpotControl(Control* a) {fLightPB->SetController(ParamID(kHotSpot),0, a); return true;}
    BOOL SetFalloffControl(Control* a) {fLightPB->SetController(ParamID(kFallOff),0, a); return true;}
    Control* GetHotSpotControl() {return fLightPB->GetController(ParamID(kHotSpot));}
    Control* GetFalloffControl() {return fLightPB->GetController(ParamID(kFallOff));}
    BOOL SetColorControl(Control * a) {fLightPB->SetController(ParamID(kLightColor),0, a); return true;}
    Control* GetColorControl() {return fLightPB->GetController(ParamID(kLightColor)); }

    BOOL GetDecayType() { return fLightPB->GetInt(kAttenTypeRadio, 0) + 1;} //Offset for the radio.
    void SetDecayType(BOOL onOff) {if (!onOff) return; else {fLightPB->SetValue(kAttenTypeRadio, 0, ((int) onOff - 1)); return;} } 
    void SetDecayRadius(TimeValue time, float f) { fLightPB->SetValue(kAttenMaxFalloffEdit, time, f); }
    float GetDecayRadius(TimeValue t, Interval& valid = Interval(0,0)) {return fLightPB->GetFloat(kAttenMaxFalloffEdit, t); }

    void SetDiffuseSoft(TimeValue time, float f) {}//fLightPB->SetValue(kDiffSoft, time, f);}
    float GetDiffuseSoft(TimeValue t, Interval& valid = Interval(0,0)) {return 0.0;} //return fLightPB->GetFloat(kDiffSoft, t);}
    void SetAffectDiffuse(BOOL onOff) {}//fLightPB->SetValue(kDiffOn, 0, onOff); }
    BOOL GetAffectDiffuse() {return false; } //fLightPB->GetInt(kDiffOn, 0); }

    LRESULT CALLBACK TrackViewWinProc( HWND hwnd,  UINT message, 
            WPARAM wParam,   LPARAM lParam ){return(0);}
};

#endif