Class: Chingu::GameStates::EnterName

Inherits:
Chingu::GameState show all
Defined in:
lib/chingu/game_states/enter_name.rb

Overview

A Chingu::GameState for showing a classic arcade “enter name” screen. Will let the user enter his alias or name with the keyboard or game_pad Intended to be minimalistic. If you wan't something flashy you probably want to do this class yourself.

Instance Attribute Summary

Attributes inherited from Chingu::GameState

#game_objects, #game_state_manager, #options, #previous_game_state

Attributes included from Helpers::InputDispatcher

#input_clients

Attributes included from Helpers::GameObject

#game_objects

Instance Method Summary collapse

Methods inherited from Chingu::GameState

#button_down, #button_up, #close, #close_game, #draw, #draw_trait, #filename, #setup, #setup_trait, #to_s, #to_sym, trait, #trait_options, traits, #update, #update_trait

Methods included from Helpers::ClassInheritableAccessor

included

Methods included from Helpers::InputClient

#add_inputs, #holding?, #holding_all?, #holding_any?, #input, #input=, #on_input

Methods included from Helpers::InputDispatcher

#add_input_client, #dispatch_button_down, #dispatch_button_up, #dispatch_input_for, #remove_input_client

Methods included from Helpers::GameObject

#game_objects_of_class, #load_game_objects, #save_game_objects

Methods included from Helpers::GFX

#draw_arc, #draw_circle, #draw_rect, #fill, #fill_arc, #fill_circle, #fill_gradient, #fill_rect

Constructor Details

#initialize(options = {}) ⇒ EnterName



31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
# File 'lib/chingu/game_states/enter_name.rb', line 31

def initialize(options = {})
  super
  
  #@title = options[:title] || "<u>Please enter your name</u>"
  #Text.create(@title, :rotation_center => :top_center, :x => $window.width/2, :y => 10, :size => 40)

  on_input([:holding_up, :holding_w, :holding_gamepad_up], :up)
  on_input([:holding_down, :holding_s, :holding_gamepad_down], :down)
  on_input([:holding_left, :holding_a, :holding_gamepad_left], :left)
  on_input([:holding_right, :holding_d, :holding_gamepad_right], :right)
  on_input([:space, :x, :enter, :gamepad_button_1, :return], :action)
  on_input(:esc, :pop_game_state)
  
  @callback = options[:callback]
  @columns = options[:columns] || 14
  
  @string = []
  @texts = []
  @index = 0
  @letter_size = 30
  @letters = %w[ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ! " # % & $ ( ) [ ] / \\ - + = * . 1 2 3 4 5 6 7 8 9 0 SPACE DEL ENTER ]

  @y = 140
  @x = ($window.width - 600)/2
  
  @letters.each_with_index do |letter, index|
    @texts << Text.create(letter, :x => @x, :y => @y, :size => @letter_size)
    @x += @texts.last.width + 20
    
    if (index+1) % @columns == 0
      @y += @letter_size
      @x = @texts.first.x
    end
  end

  @texts[@index].color = ::Gosu::Color::RED
  @name = Text.create("", :rotaion_center => :top_center, :x => $window.width/2, :y => 60, :size => 80)
end

Instance Method Details

#actionObject



103
104
105
106
107
108
109
110
111
112
113
# File 'lib/chingu/game_states/enter_name.rb', line 103

def action
  case @letters[@index]
    when "DEL"      then  @string.pop
    when "SPACE"    then  @string << " "
    when "ENTER"    then  go
    else            @string << @letters[@index]
  end
  
  @name.text = @string.join
  @name.x = $window.width/2 - @name.width/2
end

#downObject

Move cursor 1 step to the right



80
# File 'lib/chingu/game_states/enter_name.rb', line 80

def down; move_cursor(@columns); end

#goObject



115
116
117
118
# File 'lib/chingu/game_states/enter_name.rb', line 115

def go
  @callback.call(@name.text)
  pop_game_state
end

#leftObject

Move cursor 1 step to the left



71
# File 'lib/chingu/game_states/enter_name.rb', line 71

def left; move_cursor(-1); end

#move_cursor(amount = 1) ⇒ Object

Move cursor any given value (positive or negative). Used by left() and right()



83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
# File 'lib/chingu/game_states/enter_name.rb', line 83

def move_cursor(amount = 1)
  #
  # Curser will wrap
  #
  #@index += amount
  #@index = 0                if @index >= @letters.size
  #@index = @letters.size-1  if @index < 0
  
  #
  # Cursor won't wrap
  #
  new_value = @index + amount
  @index = new_value  if new_value < @letters.size && new_value >= 0
  
  @texts.each { |text| text.color = ::Gosu::Color::WHITE }
  @texts[@index].color = ::Gosu::Color::RED
  
  sleep(0.15)
end

#rightObject

Move cursor 1 step to the right



74
# File 'lib/chingu/game_states/enter_name.rb', line 74

def right; move_cursor(1); end

#upObject

Move cursor 1 step to the left



77
# File 'lib/chingu/game_states/enter_name.rb', line 77

def up; move_cursor(-@columns); end