Ninja Library - Motion Function

njSimpleDrawShapeMotionLink

Links motion with shape

FORMAT

void njSimpleDrawShapeMotionLink( *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 structure 
 shapelink  Pointer to motion structure (apex animation) 
 frame  Frame number (0 to 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 frames) 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;
	:
njSimpleDrawShapeMotionLink( OBJECT, &motionlink, &shapelink, ff/STEPS ); 
/* Frame specifies 0 - 1 */
ff+=0.2f;
if( ff >= STEPS - 1 ) ff=0.f;
	:

NOTE

This drawing function is exactly the same as model drawing, except for the fact that motion and shape (apex animation) have been added. The njControl3D settings therefore are all identical. Because the model functions correspond to njSimpleDrawObject() function, the light source is a single parallel light source.

REFERENCE

njInitShape()
njDrawShapeMotionLink()
njFastDrawShapeMotionLink()

njSimpleDrawShapeMotionLink
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