Camera #2: Demo

[BlastWind]

Priority: Demo, so only after basic framework has been completed
Produce: A camera class that controls what is rendered and how much is rendered

Watch the first two minutes of this video:

Reasons for a camera class:

1. We need to follow the main character
2. We might need to follow other characters, during, for example, dialogues and cut scenes
3. Camera needs to stop panning and following at times (See in video, camera stops following when main character is in a room)

[BlastWind]

Some thoughts on the Camera class's API:

public method: 
 void follow (&Actor toFollow)
 void stopFollow()
 void startMovement(array specifying camera panning pattern, duration of each pan, etc, use during cut scenes) 
private field: 
 Actor* following; 

[aaronamk]

For reference, see the following method from user_view.cpp in Parryt, which is to be called after every draw update:

void UserView::viewFollow(const Actor &actor) {
	sf::View view = this->window->getView();

	b2Vec2 actorPosition = actor.getBody()->GetPosition();
	view.setCenter(actorPosition.x, -actorPosition.y);

	this->window->setView(view);
}