Method CalcScreenParams

src/engine/graphics.cpp:4–29

helper functions

// helper functions
void IGraphics::CalcScreenParams(float Aspect, float Zoom, float *pWidth, float *pHeight) const
{
	const float Amount = 1150 * 1000;
	const float WMax = 1500;
	const float HMax = 1050;

	const float f = std::sqrt(Amount) / std::sqrt(Aspect);
	*pWidth = f * Aspect;
	*pHeight = f;

	// limit the view
	if(*pWidth > WMax)
	{
		*pWidth = WMax;
		*pHeight = *pWidth / Aspect;
	}

	if(*pHeight > HMax)
	{
		*pHeight = HMax;
		*pWidth = *pHeight * Aspect;
	}

	*pWidth *= Zoom;
	*pHeight *= Zoom;
}

void IGraphics::MapScreenToWorld(float CenterX, float CenterY, float ParallaxX, float ParallaxY,
	float ParallaxZoom, float OffsetX, float OffsetY, float Aspect, float Zoom, float *pPoints) const