crystal.CameraController

Utility class to handle multiple cameras in a scene.

Constructor

crystal.CameraController:new()

Methods

Name	Description
camera	Returns the current camera.
cut_to	Cuts to another camera, playing transitions in-between.
draw	Executes a drawing function wrapped with active camera offset and transitions.
move_to	Interpolates to another camera.
offset	Returns the offset applied when drawing through the active camera.
update	Updates active camera movement or transitions.

Examples

local MyScene = Class("MyScene", crystal.Scene);

MyScene.init = function(self)
  self.camera_controller = crystal.CameraController:new();
end

MyScene.update = function(self, dt)
  self.camera_controller:update(dt);
end

MyScene.draw = function(self)
  self.camera_controller:draw(function()
    -- Scene drawing goes here
  end);
end

MyScene.play_cutscene = function(self)
  local new_camera = crystal.Camera:new();
  new_camera.position = function() return 100, 200; end;
  self.camera_controller:cut_to(
    new_camera,
    crystal.Transition.FadeToBlack:new(),
    crystal.Transition.FadeFromBlack:new()
  );
  -- More cutscene logic goes here
end