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

Returns a new instance of EnterName.


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# 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

#action ⇒ Object 


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# 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

#down ⇒ Object

Move cursor 1 step to the right


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

def down; move_cursor(@columns); end

#go ⇒ Object 


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

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

#left ⇒ Object

Move cursor 1 step to the left


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# 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()


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# 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

#right ⇒ Object

Move cursor 1 step to the right


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

def right; move_cursor(1); end

#up ⇒ Object

Move cursor 1 step to the left


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

def up; move_cursor(-@columns); end