#include <pfcave.h>
#include "bounceDCS.h"

/************************************************************************/
/* Performer type data
*/

pfType *bounceDCS::classType_ = NULL; 

void bounceDCS::init(void)
{
 if (classType_ == NULL)
	{
        pfDCS::init();				/* Initialize the parent class */
        classType_ =  new pfType(pfDCS::getClassType(), "bounceDCS");	/* Create the new pfType for this class, based on the parent class's type */
	}
}
/************************************************************************/



bounceDCS::bounceDCS(void)
{
 setType(classType_);  /* set the Performer type of this instance */
 position_.set(0,0,0);
 velocity_.set(0,0,0);
 gravity_ = 10.0f;
 prevTime_ = -1.0f;
}


void bounceDCS::setPosition(float x,float y,float z)
{
 position_.set(x,y,z);
}


void bounceDCS::setVelocity(float x,float y,float z)
{
 velocity_.set(x,y,z);
}


void bounceDCS::setGravity(float g)
{
 gravity_ = g;
}


int bounceDCS::app(pfTraverser *trav)
{
 float dt;
 dt = pfGetTime() - prevTime_;
 if (dt < 1.0f)
	{
	position_ += velocity_ * dt;
	if (position_[2] < 0.0f)
		{
		if (velocity_[2] < 0.0f)
			velocity_[2] *= -1.0f;
		}
	else
		velocity_[2] -= gravity_ * dt;
	}
 setTrans(position_[0],position_[1],position_[2]);
 prevTime_ = pfGetTime();
 return pfDCS::app(trav);
}

int bounceDCS::needsApp(void)
{
 return TRUE;
}