#include  <Ninja.h>
void   njDrawSprite2D( *sp, n, pri, attr )
NJS_SPRITE  *sp
Int         n
Float       pri
Uint32      attr

Sprite sructure

typedef struct {
  NJS_POINT3  p;       /* point            */
  NJS_VECTOR  v;       /* normal           */
  Float       sx,sy;   /* scale            */
  Angle       ang;     /* angle            */
  NJS_TEXLIST *tlist;  /* texture list     */
  NJS_TEXANIM *tanim;  /* animation list   */
} NJS_SPRITE;

p

sets drawing point.
p.x and p.y : set screen coordinate (upper left origin).

v

is not valid in the current version.

sx,sy

specify the magnifying rate in H and V.

ang

sets the rotate angle.
It is valid only when NJD_SPRITE_ANGLE is set.

tlist

sets texture list of all textures used for Sprite.
The texture list must be loaded by njLoadTexture() beforehand.

tanim

sets texture animation patterns.
The order of this structure accommodates texture numbers.

Texture animation structure

typedef struct {
  Sint16      sx,sy;   /* size             */
  Sint16      cx,cy;   /* center           */
  Sint16      u1,v1;   /* tex1             */
  Sint16      u2,v2;   /* tex2             */
  Sint16      texid;   /* texture id       */
  Sint16      attr;    /* attribute        */
} NJS_TEXANIM;

sy,sy

specify sprite size (irrelevant to texture size)

cx,cy

set the center coordinate for the texture.
specify by relative point from upper left.
This point corresponds to drawing point and the center of rotation.

u1,v1

set texture upper-left UV coordinate.
0 - 255 must be specified irrelevant with texture size.

u2,v2

set texture bottom-right UV coordinate.
0 - 255 must be specified irrelevant with texture size.

texid

specify which texture within the list is used.

attr

invalid at the current version.

NJS_TEXANIM  anim[] = {
  { 128,128, 64, 64,  0,  0,127,127,  0, 0 },
  { 128,128, 64, 64,128,  0,255,127,  0, 0 },
  { 128,128, 64, 64,  0,128,127,255,  0, 0 },
  { 128,128, 64, 64,128,128,255,255,  0, 0 },
  { 128,128, 64, 64,  0,  0,127,127,  1, 0 },
  { 128,128, 64, 64,128,  0,255,127,  1, 0 },
  { 128,128, 64, 64,  0,128,127,255,  1, 0 },
  { 128,128, 64, 64,128,128,255,255,  1, 0 },
};

main() {
  NJS_SPRITE  sprite;

         :
  Initial settings
         :

  sprite.tlist = &texlist;
  sprite.tanim = anim;
  sprite.ang = 0x4000;
  sprite.sx = 1.0f;
  sprite.sy = 1.0f;
  sprite.p.x = 320.0f;
  sprite.p.y = 240.0f;

  njLoadTexture( &texlist );
  njDrawSprite2D( &sprite, 2, -150.f, NJD_SPRITE_ANGLE );

    ......

}