Class: Wads::WadsApp

Inherits:
Gosu::Window
  • Object
show all
Defined in:
lib/wads/app.rb

Overview

The WadsApp class provides a simple starting point to quickly build a native Ruby application using Gosu as an underlying library. It provides all the necessary hooks to get started. All you need to do is supply the parent Wads widget using the set_display(widget) method. See one of the Wads samples for example usage.

Instance Method Summary collapse

Constructor Details

#initialize(width, height, caption, widget) ⇒ WadsApp

Returns a new instance of WadsApp.



12
13
14
15
16
17
18
19
20
 
# File 'lib/wads/app.rb', line 12

def initialize(width, height, caption, widget)
    super(width, height)
    self.caption = caption
    @update_count = 0
    WadsConfig.instance.set_window(self)
    set_display(widget) 
    WadsConfig.instance.set_log_level("info")
    @registered_hold_down_buttons = []
end

Instance Method Details

#button_down(id) ⇒ Object 



58
59
60
61
62
63
64
65
66
67
 
# File 'lib/wads/app.rb', line 58

def button_down id
    close if id == Gosu::KbEscape
    # Delegate button events to the primary display widget
    result = @main_widget.button_down id, mouse_x, mouse_y
    if not result.nil? and result.is_a? WidgetResult
        if result.close_widget
            close
        end
    end
end

#button_up(id) ⇒ Object 



69
70
71
 
# File 'lib/wads/app.rb', line 69

def button_up id
    @main_widget.button_up id, mouse_x, mouse_y
end

#draw ⇒ Object 



54
55
56
 
# File 'lib/wads/app.rb', line 54

def draw
    @main_widget.draw
end

#get_display ⇒ Object 



30
31
32
 
# File 'lib/wads/app.rb', line 30

def get_display
    @main_widget
end

#register_hold_down_key(id) ⇒ Object

Register a key (identified by the Gosu id) to check if it is being held down. If so, the handle_key_held_down callback will be invoked on widgets For example, register_hold_down_key(Gosu::KbLeft)



37
38
39
 
# File 'lib/wads/app.rb', line 37

def register_hold_down_key(id)
    @registered_hold_down_buttons << id 
end

#set_display(widget) ⇒ Object

This method must be invoked with any Wads::Widget instance. It then handles delegating all events and drawing all child widgets.



26
27
28
 
# File 'lib/wads/app.rb', line 26

def set_display(widget) 
    @main_widget = widget 
end

#update ⇒ Object 



41
42
43
44
45
46
47
48
49
50
51
52
 
# File 'lib/wads/app.rb', line 41

def update
    @main_widget.update(@update_count, mouse_x, mouse_y)

    # Look for keys that are held down and delegate those events
    @registered_hold_down_buttons.each do |id|
        if button_down?(id)
            @main_widget.handle_key_held_down id, mouse_x, mouse_y 
        end
    end

    @update_count = @update_count + 1
end