SOP_Euclid.h

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/*
 * Copyright (c) 2025
 *      Side Effects Software Inc.  All rights reserved.
 *
 * Redistribution and use of Houdini Development Kit samples in source and
 * binary forms, with or without modification, are permitted provided that the
 * following conditions are met:
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 *    this list of conditions and the following disclaimer.
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 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
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 *
 *----------------------------------------------------------------------------
 * Defines sops that attach euclidean expressions to gdps.
 */

#ifndef __SOP_Euclid_h__
#define __SOP_Euclid_h__

#include <SOP/SOP_Node.h>

#include "EUC_Expression.h"

namespace HDK_Sample {

class SOP_EuclidBase : public SOP_Node
{
protected:
             SOP_EuclidBase(OP_Network *net, const char *name, OP_Operator *op);
            ~SOP_EuclidBase() override;

    OP_ERROR                     cookMySop(OP_Context &context) override;

    virtual EUC_Expression      *cookExpression(OP_Context &context) = 0;

    EUC_Expression              *getInputExpression(int idx) const;

protected:
    bool                         HIDE(fpreal t) { return (bool)evalInt(0, 0, t); }
    fpreal                       CR(fpreal t) { return evalFloat(1, 0, t); }
    fpreal                       CG(fpreal t) { return evalFloat(1, 1, t); }
    fpreal                       CB(fpreal t) { return evalFloat(1, 2, t); }
    
    EUC_Expression              *myExpression;
};

class SOP_EuclidPoint : public SOP_EuclidBase
{
public:
    static OP_Node              *myConstructor(OP_Network*, const char *,
                                                            OP_Operator *);
    static PRM_Template          myTemplateList[];
protected:
             SOP_EuclidPoint(OP_Network *net, const char *name, OP_Operator *op);
             
    EUC_Expression              *cookExpression(OP_Context &context) override;

    fpreal                       TX(fpreal t) { return evalFloat(2, 0, t); }
    fpreal                       TY(fpreal t) { return evalFloat(2, 1, t); }
};

class SOP_EuclidPointFromObject : public SOP_EuclidBase
{
public:
    static OP_Node              *myConstructor(OP_Network*, const char *,
                                                            OP_Operator *);
    static PRM_Template          myTemplateList[];
protected:
         SOP_EuclidPointFromObject(OP_Network *net, const char *name, OP_Operator *op);
             
    EUC_Expression              *cookExpression(OP_Context &context) override;

    int                          IDX(fpreal t) { return evalInt(2, 0, t); }
};

class SOP_EuclidLineFromPoints : public SOP_EuclidBase
{
public:
    static OP_Node              *myConstructor(OP_Network*, const char *,
                                                            OP_Operator *);
    static PRM_Template          myTemplateList[];
protected:
         SOP_EuclidLineFromPoints(OP_Network *net, const char *name, OP_Operator *op);
             
    EUC_Expression              *cookExpression(OP_Context &context) override;
};

class SOP_EuclidCircleFromPoints : public SOP_EuclidBase
{
public:
    static OP_Node              *myConstructor(OP_Network*, const char *,
                                                            OP_Operator *);
    static PRM_Template          myTemplateList[];
protected:
         SOP_EuclidCircleFromPoints(OP_Network *net, const char *name, OP_Operator *op);
             
    EUC_Expression              *cookExpression(OP_Context &context) override;
};

class SOP_EuclidIntersect : public SOP_EuclidBase
{
public:
    static OP_Node              *myConstructor(OP_Network*, const char *,
                                                            OP_Operator *);
    static PRM_Template          myTemplateList[];
protected:
         SOP_EuclidIntersect(OP_Network *net, const char *name, OP_Operator *op);
             
    EUC_Expression              *cookExpression(OP_Context &context) override;
};

class SOP_EuclidSelect : public SOP_EuclidBase
{
public:
    static OP_Node              *myConstructor(OP_Network*, const char *,
                                                            OP_Operator *);
    static PRM_Template          myTemplateList[];
protected:
         SOP_EuclidSelect(OP_Network *net, const char *name, OP_Operator *op);
             
    EUC_Expression              *cookExpression(OP_Context &context) override;

    int                          IDX(fpreal t) { return evalInt(2, 0, t); }
};

}

#endif