json serialization beginnings, but still much to do

src/signal.h

@@ -9,7 +9,7 @@ class Signal : public Movable{
 	public:
 
 	Signal();
-	Signal(Vec2D<float> position, float r, float _speed, Color color) : Movable(position, Vec2D<float>(0,0), _speed), radius(r), color(color) {}
+	Signal(Vec2Df position, float r, float _speed, Color color) : Movable(position, Vec2Df(0,0), _speed), radius(r), color(color) {}
 	
 	SPTR_Node next;
 	SPTR_Node last;
@@ -32,7 +32,7 @@ class Signal : public Movable{
 		position += direction.norm() * speed * multiplier * (float)t_delta / 1000000.0f;
 	}
 
-	void draw(Vec2D<float> mouse, Camera2D cam) {
+	void draw(Vec2Df mouse, Camera2D cam) {
 		DrawCircle(position.x, position.y, radius, color);
 	}
 };