src/graphics/Camera.cpp

   1 #include "Camera.h"
   2
   3 #include <cassert>
   4
   5 using geometry::Vector;
   6
   7 namespace graphics {
   8
   9 Camera::Camera(int width, int height, const Vector<float> *target)
  10 : target(target), halfWidth(width / 2), halfHeight(height / 2) {
  11
  12 }
  13
  14
  15 void Camera::SetTarget(const Vector<float> *t) {
  16         target = t;
  17 }
  18
  19
  20 Vector<int> Camera::CalculateOffset() const {
  21         if (target) {
  22                 return Vector<int>(
  23                                 (target->X() - halfWidth) * -1,
  24                                 (target->Y() - halfHeight) * -1);
  25         } else {
  26                 return Vector<int>();
  27         }
  28 }
  29
  30 }