focalintent

// base GridMap class.  Allows from mapping from an X x Y grid of
// T values to an MX x MY grid of T values (where
// MX and MY are greater than X and Y respectively), using linear
// interpolation to fill in the gaps.  Optionally allows for rotating
// around the center point.  Subclasses should provide an implementation
// for the interpolate method, appropriate to the type of data being mapped
template<int X, int Y, int MX, int MY, class T> class AbstractGridMap {
	int revcosval,revsinval;
	uint8_t angle;