libtthimage/Lib/turtle.c

63 lines
1.3 KiB
C

/*
turtle.c
---------------
*/
#include <stdio.h>
#include <math.h>
#include "../tthimage.h"
/*::------------------------------------------------------------------::*/
int
Image_turtle_infos(Image_Desc *img, int flags)
{
#if DEBUG_LEVEL
fprintf(stderr, "Image turtle infos: flags = %04x\n", flags);
#endif
if ( flags & 1 )
Image_dump_descriptor(img, "turtle infos");
return FUNC_IS_ALPHA;
}
/*::------------------------------------------------------------------::*/
/*
* changer la couleur de l'encre de la tortue.
*
* Q: pourquoi le canal alpha n'est pas pris en compte ?
* A: parce que :)
*/
int
Image_turtle_setcolors(Image_Desc *img, int r, int g, int b)
{
img->rt = r; img->gt = g; img->bt = b;
img->at = 0; /* ? bonne valeur ? */
return FUNC_IS_ALPHA;
}
/*::------------------------------------------------------------------::*/
int
Image_turtle_move(Image_Desc *img, double xt, double yt)
{
img->xt = xt;
img->yt = yt;
fprintf(stderr, ">>> %s ( %p %f %f )\n", __func__, img, xt, yt);
return FUNC_NOT_FINISH;
}
/*::------------------------------------------------------------------::*/
int
Image_turtle_draw(Image_Desc *img, double xt, double yt)
{
fprintf(stderr, ">>> %s ( %p %f %f )\n", __func__, img, xt, yt);
return FUNC_NOT_FINISH;
}
/*::------------------------------------------------------------------::*/