Module: Tea::Event

Defined in:
lib/tea/m_event.rb,
lib/tea/m_event_app.rb,
lib/tea/m_event_mouse.rb,
lib/tea/m_event_dispatch.rb,
lib/tea/m_event_keyboard.rb

Overview

The Event module allows access to the event queue, and the classes of events that come out.

Defined Under Namespace

Modules: Dispatch

Constant Summary collapse

APPMOUSEFOCUS_ =

APP constants rubysdl is missing. For internal use only.

0x01
APPINPUTFOCUS_ = 
0x02
APPACTIVE_ = 
0x04
BUTTON_WHEELUP_ =

Missing mouse wheel button constants from rubysdl. For internal use only.

4
BUTTON_WHEELDOWN_ = 
5
@@event_queue =

Tea’s generated event queue. Add to the back, get from the front.

[]

Class Method Summary collapse

Class Method Details

.get(wait = false) ⇒ Object

Get the next event in the event queue. If wait is true and there are no events to return, this method will wait until there is one and return it. Otherwise, an empty event queue will return nil.

May raise Tea::Error if getting an event fails.



26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
 
# File 'lib/tea/m_event.rb', line 26

def Event.get(wait=false)
  if @@event_queue.length == 0
    if wait
      begin
        sdl_event = SDL::Event.wait
        if (out_events = translate_event(sdl_event))
          @@event_queue.push *out_events
        end
      end until @@event_queue.length > 0
    else
      if (out_events = translate_event(SDL::Event.poll))
        @@event_queue.push *out_events
      end
    end
  end

  tea_event = @@event_queue.shift
  [App, Mouse, Kbd].each { |state_holder| state_holder.update_state tea_event }
  tea_event
rescue SDL::Error => e
  raise Tea::Error, e.message, e.backtrace
end