Adde camera class

cpp/src/camera.cpp

@@ -0,0 +1,16 @@
+#include "camera.hpp"
+#include "math.hpp"
+
+
+// for now only pass-through placeholder functions,
+// since we draw the whole map 
+
+WindowPos Camera::WorldToWindow(WorldPos world) const
+{
+  return WindowPos{world[0], world[1]};
+}
+
+WorldPos Camera::WindowToWorld(WindowPos window) const
+{
+    return WorldPos{window[0], window[1]};
+}

cpp/src/camera.hpp

@@ -0,0 +1,16 @@
+#pragma once
+
+#include "math.hpp"
+
+class Camera
+{
+public:
+  WindowPos WorldToWindow(WorldPos) const;
+  WorldPos WindowToWorld(WindowPos) const;
+
+private:
+  // TODO this should be replaced with a matrix
+  float m_Zoom;
+  WorldPos m_RectCorner; // upper left corner (0,0) of the drawn regios
+
+};