Class: Ruby2D::Camera::Sprite

Inherits:
Sprite
  • Object
show all
Defined in:
lib/ruby2d/camera/sprite.rb

Overview

Wraps existing variables as well as adding new methods so that it can be handled by the Camera Module

Instance Method Summary collapse

Constructor Details

#initialize(path, opts = {}) ⇒ Sprite

Returns a new instance of Sprite.



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# File 'lib/ruby2d/camera/sprite.rb', line 46

def initialize(path, opts = {})
  super(path, opts)
  Ruby2D::Camera << self
  Window.remove(self)
end

Instance Method Details

#_draw ⇒ Object

Recalculates real coordiantes Use after changing variables



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# File 'lib/ruby2d/camera/sprite.rb', line 10

def _draw
  return if @hide

  angle = Camera.angle * (Math::PI / 180)
  half_width = Window.width * 0.5
  half_height = Window.height * 0.5
  offset_x = @x + (width / 2)
  offset_y = @y + (height / 2)
  temp_x = (((offset_x - Camera.x) * Math.cos(angle)) - ((offset_y - Camera.y) * Math.sin(angle))) \
    * Camera.zoom + half_width - (width * Camera.zoom / 2)
  temp_y = (((offset_x - Camera.x) * Math.sin(angle)) + ((offset_y - Camera.y) * Math.cos(angle))) \
    * Camera.zoom + half_height - (height * Camera.zoom / 2)
  temp_rotate = rotate + Camera.angle
  temp_width = width * Camera.zoom
  temp_height = height * Camera.zoom
  case @flip
  when :both
    temp_x += temp_height
    temp_y += temp_width
    temp_width = -temp_width
    temp_height = -temp_height
    puts 'both'
  when :horizontal
    temp_y += temp_width
    temp_height = -temp_height
  when :vertical
    temp_width = -temp_width
    temp_x += temp_height
  end
  draw(x: temp_x, y: temp_y,
       width: temp_width,
       height: temp_height,
       rotate: temp_rotate)
  update
end

#add ⇒ Object 



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# File 'lib/ruby2d/camera/sprite.rb', line 61

def add
  @hide = false
end

#remove ⇒ Object 



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# File 'lib/ruby2d/camera/sprite.rb', line 57

def remove
  @hide = true
end

#z=(z) ⇒ Object 



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# File 'lib/ruby2d/camera/sprite.rb', line 52

def z=(z)
  super(z)
  Ruby2D::Camera._sort_by_z
end