isoMath.hxx

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#ifndef ISOMATH_HXX_
#define ISOMATH_HXX_
 
#include <vector>
#include <algorithm>
#include <SDL.h>
 
#include "Point.hxx"
 
// calculate clicked column (x coordinate) without heigh taken into account.
Point calculateIsoCoordinates(const SDL_Point &screenCoordinates);
 
SDL_Point convertIsoToScreenCoordinates(const Point &isoCoordinates, bool calcWithoutOffset = false);
 
Point convertScreenToIsoCoordinates(const SDL_Point &screenCoordinates);
 
std::vector<Point> createBresenhamLine(const Point &isoCoordinatesStart, const Point &isoCoordinatesEnd);
 
std::vector<Point> getRectangleSelectionNodes(const Point &isoCoordinatesStart, const Point &isoCoordinatesEnd);
 
// bool isPointWithinMapBoundaries(int x, int y);
// bool isPointWithinMapBoundaries(const Point &isoCoordinates);
bool isPointWithinMapBoundaries(const std::vector<Point> &isoCoordinates);
 
//TODO: Remove this when switching to C++17 and use std::clamp instead
template <typename T> T clamp(const T &n, const T &lower, const T &upper) { return std::max(lower, std::min(n, upper)); }
 
#endif