crown-engine/lua/QuatBinds.cpp

#include "Device.h"
#include "ScriptSystem.h"

namespace crown
{

/// Lightweight bind for Quat

extern "C"
{
	Quat&		quat(float angle, const Vec3& v);

	void		quat_negate(Quat& self);

	void		quat_load_identity(Quat& self);

	float		quat_length(Quat& self);	

	void		quat_conjugate(Quat& self);

	Quat&		quat_inverse(Quat& self);			

	Quat&		quat_cross(Quat& self, const Quat& b);

	Quat&		quat_multiply(Quat& self, const float& k);

	Quat&		quat_power(Quat& self, float exp);
}

Quat& quat(float angle, const Vec3& v)
{
	return device()->script_system()->next_quat(angle, v);
}

void quat_negate(Quat& self)
{
	self.negate();
}

void quat_load_identity(Quat& self)
{
	self.load_identity();
}

float quat_length(Quat& self)
{
	return self.length();
}

void quat_conjugate(Quat& self)
{
	self.conjugate();
}

Quat& quat_inverse(Quat& self)
{
	self.conjugate(); 
	
	self = self * (1.0f / self.length());

	return self;
}

Quat& quat_cross(Quat& self, const Quat& b)
{
	self = self * b;

	return self;
}

Quat& quat_multiply(Quat& self, const float& k)
{
	self = self * k;

	return self;
}

Quat& quat_power(Quat& self, float exp)
{
	self.power(exp);

	return self;
}

} //namespace crown