diguyAuthorVisualMultiline.h

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/*********************************************************************
 ** Copyright (c) 1992-2019 VT MAK
 ** All rights reserved. 
 *********************************************************************/

/*********************************************************************/

#ifndef __diguyAuthorVisualMultiline_H
#define __diguyAuthorVisualMultiline_H

#include <declspec_diguy.h>
#include <diguy_vector_classes.h>
class diguyAuthorVisualMaterial;
class diguyAuthorVisualMultiline;
class bdiGeometryMultilineData;

typedef diguyAuthorVisualMultiline* diguyAuthorVisualMultilineCreateFunc(void* internal_data, long visual_uid);


/*l
 **  Function for setting the create function for multiline visual subclass
 **  objects.  This should be called after diguy_author_initialize(), but
 **  before any scenario is created of loaded.
 */
BDI_DECLSPEC_diguy void diguy_author_set_multiline_visual_create_func(diguyAuthorVisualMultilineCreateFunc* func);


class BDI_DECLSPEC_diguy diguyAuthorVisualMultiline
{

public:

        /*l
         **  Returns the visual material to be used for rendering this object.
         **
         **  Because multilines have no polygons the brush color of the material
         **  is not used.
         */
        diguyAuthorVisualMaterial* get_visual_material();

        int  get_num_points();
        diguyVec3f get_point_position(int point_number);
        diguyVec3d get_point_position_double(int point_number);

        /*l
         **  Returns the uid (unique identifier) of this multiline.
         */
        long get_uid();

        /*l
         **  Returns 1 if this visual should be visible, else 0.
         */
        int get_visible();


/*****************************************************************************/
        /*l
         *b  Description:
         **
         **    See diguyAuthorVisualWaypoint::build() for general information
         **    about this function.
         **
         **    Multilines are mostly represented by renderer line primitives.
         */
        virtual void build();

        /*l
         *b  Description:
         **
         **    See diguyAuthorVisualWaypoint::unbuild() for general information
         **    about this function.
         */
        virtual void unbuild();

        /*l
         *b  Description:
         **
         **    See diguyAuthorVisualWaypoint::update() for general information
         **    about this function.
         **
         *i    DIGUY_GRAPHICS_VISUAL_UPDATE_GEOMETRY
         **
         **      The functions get_num_points(), get_point_position(), etc.,
         **      should be used to create line primitives.
         **
         *i    DIGUY_GRAPHICS_VISUAL_UPDATE_POSITION
         **
         **      Multiline visuals do not use this value.  The overall positions
         **      of line segment endpoints that make up the multiline are
         **      recomputed and applied during an overall geometry update
         **      operation.
         */
        virtual void update(int update_flags);

        /*l
         *b  Description:
         **
         **    See diguyAuthorVisualWaypoint::draw() for general information
         **    about this function.
         */
        virtual void draw();

        /*l
         *b  Description:
         **
         **    See diguyAuthorVisualWaypoint::show() for general information
         **    about this function.
         */
        virtual void show();

        /*l
         *b  Description:
         **
         **    See diguyAuthorVisualWaypoint::hide() for general information
         **    about this function.
         */
        virtual void hide();




/****************************************************************************/
/****************************************************************************/

        static diguyAuthorVisualMultilineCreateFunc* s_create_func;

protected:

        // protected constructor and destructor
        diguyAuthorVisualMultiline(void* internal_data, long uid);
        virtual ~diguyAuthorVisualMultiline();

        bdiGeometryMultilineData* m_scripted_object;
        bdiGeometryMultilineData* get_scripted_object() {return m_scripted_object;}

        diguyAuthorVisualMaterial* m_visual_material;
        long m_uid;

        friend class bdiPath;
        friend class bdiGeometryMultilineData;

};

#endif /* __diguyAuthorVisualMultiline_H */