#include "Scene.h"

float WORLD::GetCurrentFocale()
{
	return CurrentFocale;
}

void WORLD::SetCurrentFocale(float focale)
{
	if (focale)
		CurrentFocale = focale;
	else
		CurrentFocale = 2.5f; //Default focale value
}

Vector WORLD::Project_2_Screen(Vector V,MAP *RefMap, float focale)
{
	Vector Ret;
	float Ooz;
	if (focale == 0)
		focale = GetCurrentFocale();
	if (V.z > 0.001f)
	{
		Ooz = 1.0f / V.z;
		Ret.x = 0.5f*(focale * V.x * Ooz * RefMap->SX + RefMap->SX);
		Ret.y = 0.5f*(focale * V.y * Ooz * RefMap->SX + RefMap->SY);
		Ret.z = Ooz;
	} else Ret.z = -1.0f;
	return Ret;
}