Eric Wieser / LEDMatrix

A library to manipulate 2D arrays, and output them to an LED Dot Matrix Display. The display must be wired up using a shift register combined with a nor latch.

Locations.h

Committer:
EricWieser
Date:
2012-02-13
Revision:
0:1deae5ffe9ed
Child:
1:44819562ea31

File content as of revision 0:1deae5ffe9ed:

#ifndef LOCATIONS_H
#define LOCATIONS_H
class FloatLocation;
class IntLocation {
public:
    IntLocation(int x = 0, int y = 0) : x(x), y(y) { }
    int x, y;
    operator FloatLocation();
    bool operator==(IntLocation l) { return l.x == x && l.y == y; }
    IntLocation operator+(IntLocation l) { return IntLocation(l.x + x, l.y + y); }
};

class FloatLocation {
public:
    FloatLocation(float x = 0, float y = 0) : x(x), y(y) { }
    float x, y;
    operator IntLocation() {
        return IntLocation((int) (x + 0.5), (int) (y + 0.5));
    }
    FloatLocation lerp(FloatLocation to, float alpha) {
        return FloatLocation(
                   x*(1 - alpha) + to.x*alpha,
                   y*(1 - alpha) + to.y*alpha
               );
    }
    bool operator==(FloatLocation l) { return l.x == x && l.y == y; }
};
IntLocation::operator FloatLocation() {
    return FloatLocation(x, y);
}
#endif