##### Ninja Library - Motion Function

# njDrawShapeMotionLink

Links motion with shape

### FORMAT

`

  void njDrawShapeMotionLink( *object, *motionlink, *shapelink, frame )
  NJS_OBJECT *object
  NJS_MOTION_LINK *motionlink
  NJS_MOTION_LINK *shapelink
  Float frame

`

### PARAMETER

  `*object` | Pointer to object structure
  `*motionlink` | Pointer to motion link structure
  `*shapelink` | Pointer to motion link structure (apex animation)
  `frame` | Frame number (between 0 and 1)

### RETURN

  None

### DESCRIPTION

  Links two motion structures.

  The motion link structure contains two motion frames, from the link source and link target. When the parameter frame is 0, the motion is of the source frame, and when it is 1, the motion is of the link target frame. Other frames (0 < ff < 1) are interpolated. The same applies for shape (apex animation).

### EXAMPLE

      #include <Shinobi.h>
      #define	OBJECT	object_sample
      #define	MOTION1	motion_sample1 /* Entered in NAM file */
      #define	MOTION2	motion_sample2 /* Entered in NAM file */
      #define	SHAPE1	shape_sample1 /* Entered in NAS file */
      #define	SHAPE2	shape_sample2 /* Entered in NAS file */
      #define	STEPS	60
      extern NJS_MOTION	MOTION1[];
      extern NJS_MOTION	MOTION2[];
      extern NJS_MOTION	SHAPE1[];
      extern NJS_MOTION	SHAPE2[];
      NJS_MOTION_LINK	motionlink;
      NJS_MOTION_LINK	shapelink;
      	:
      motionlink.motion[0] = MOTION1;/* Link source */
      motionlink.motion[1] = MOTION2;/* Link target */
      shapelink.motion[0] = SHAPE1;/* Link source */
      shapelink.motion[1] = SHAPE2;/* Link target */
      /* Interpolate from last frame of MOTION1 to 1.5 frames of MOTION2 */
      motionlink.frame[0] =
      shapelink.frame[0] = MOTION1->nbFrame-1;
      motionlink.frame[1] =
      shapelink.frame[1] = 1.5;
      	:
      njDrawShapeMotionLink( OBJECT, &motionlink, &shapelink, ff/STEPS );
      /* Frame specifies 0 - 1 */
      ff+=0.2f;
      if( ff >= STEPS - 1 ) ff=0.f;
      	:

### NOTE

  The drawing performed by this function is identical to model drawing, except that motion and shape (apex animation) have been added. In other words, all of the `njControl3D()` settings are identical. This function corresponds to the model drawing function `njDrawObject(),` so the light source is normal light.

### REFERENCE

  `njInitShape()
  njFastDrawShapeMotionLink()
  njSimpleDrawShapeMotionLink()
  `

njDrawShapeMotionLink

COPYRIGHT © SEGA ENTERPRISES, LTD., 1998,1999