Parallax and Viewport compatibilities

[jamillosantos]

Now the trait :viewport and Parallax can be used together.

Without Viewport

The example3_parallax.rb default examples works.

With Viewport

class GameStateTest < Chingu::GameState
    traits :timer, :viewport

    def initialize(options)
        super(options)

        self.viewport.lag = 0
        self.viewport.game_area = [0.0, 0.0, 1000.0, 1000.0]

        @parallaxes = []

        tmp = Chingu::Parallax.create(:x => 0, :y => 0, :rotation_center => :top_left, :zorder => 1)
        tmp.add_layer(:image => "grass.png", :damping => 10, :center => 0)
        @parallaxes << tmp

        tmp = Chingu::Parallax.create(:x => 0, :y => 283, :rotation_center => :top_left, :zorder => 2)
        tmp << {:image => "grassfg.png", :y=>100, :damping => 1, :center => 0}
        @parallaxes << tmp

        tmp = Chingu::Parallax.create(:x => 0, :y => tmp.y-30, :rotation_center => :top_left, :zorder => 2)
        tmp << {:image => "grassfg2.png", :y=>-100, :damping => 1, :center => 0}
        @parallaxes << tmp


        @bird = Player.create(:x => 200, :y => 0, :image => "player.png")
    end
    ...
    def update
        self.viewport.center_around(@bird)
        @parallaxes.each do |parallax|
            parallax.camera_x = self.viewport.x
            parallax.camera_y = self.viewport.y
        end
        super
    end
    ...
end

[ippa]

Hi, thanks for taking the time to make this pullrequest! Have you done any other testing then that single example? Would it be possible with a few testcases? I don't want to brake anyones game.

[jamillosantos]

Thanks. All right, I will collect some examples on google and make a bunch of testcases.