#include "Transform3.h"
#include "RenderState.h"
#include "ShaderProgram.h"


namespace CHCDemoEngine 
{


Transform3::Transform3()
{
	Reset();
}


Transform3::Transform3(const Matrix4x4 &trafo): 
mMatrix(trafo), mOldMatrix(trafo)
{
	mIsIdentity = false;
}


void Transform3::Load(RenderState *state)
{
	if (!mIsIdentity) 
	{
		glPushMatrix();
		glMultMatrixf((float *)mMatrix.x);
	}
}


void Transform3::Unload(RenderState *state)
{
	if (!mIsIdentity) glPopMatrix();
}


void Transform3::MultMatrix(const Matrix4x4 &trafo)
{
	mIsIdentity = false;
	mOldMatrix = mMatrix;
	mMatrix = trafo * mMatrix;
}


void Transform3::Reset()
{
	mIsIdentity = true;
	mMatrix = IdentityMatrix();
	mOldMatrix = mMatrix;
}


}