#include <stdio.h>
#include "BulletObject.h"

BulletObject::BulletObject(Environment *bullet)
{
	m_bullet = bullet;
}


btRigidBody* BulletObject::localCreateRigidBody (btScalar mass, const btTransform& startTransform, btCollisionShape* shape) {
	bool isDynamic = (mass != 0.f);

	btVector3 localInertia(0,0,0);
	if (isDynamic)
		shape->calculateLocalInertia(mass,localInertia);

	btDefaultMotionState* myMotionState = new btDefaultMotionState(startTransform);
	btRigidBody::btRigidBodyConstructionInfo rbInfo(mass,myMotionState,shape,localInertia);
	btRigidBody* body = new btRigidBody(rbInfo);

	m_bullet->getDynamicsWorld()->addRigidBody(body);

	return body;
}

btRigidBody* BulletObject::createBulletObject(btCollisionShape* colShape, btVector3 position, btScalar mass)
{
	m_bullet->getCollisionShapes().push_back(colShape);

	btTransform startTransform;
	startTransform.setIdentity();
	startTransform.setOrigin(SCALING*position);

	btRigidBody *body = localCreateRigidBody(mass, startTransform, colShape);
	body->setActivationState(ISLAND_SLEEPING);

	return body;
}


btRigidBody* BulletObject::createBulletObject(btCollisionShape* colShape, btTransform transform, btScalar mass)
{
	m_bullet->getCollisionShapes().push_back(colShape);

	btRigidBody *body = localCreateRigidBody(mass, transform, colShape);
	body->setActivationState(ISLAND_SLEEPING);

	return body;
}