Class: Ruby2D::Camera::Circle

Inherits:
Ruby2D::Circle
  • Object
show all
Defined in:
lib/ruby2d/camera/circle.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(opts = {}) ⇒ Circle

Returns a new instance of Circle.



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# File 'lib/ruby2d/camera/circle.rb', line 25

def initialize(opts = {})
  super(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/circle.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
  temp_radius = @radius * Camera.zoom
  temp_x = (((@x - Ruby2D::Camera.x + radius) * Math.cos(angle)) - ((@y - Ruby2D::Camera.y + radius) * Math.sin(angle))) * Ruby2D::Camera.zoom + half_width
  temp_y = (((@x - Ruby2D::Camera.x + radius) * Math.sin(angle)) + ((@y - Ruby2D::Camera.y + radius) * Math.cos(angle))) * Ruby2D::Camera.zoom + half_height
  Ruby2D::Circle.draw(x: temp_x, y: temp_y,
                      radius: temp_radius,
                      sectors: sectors,
                      color: [color.r, color.g, color.b, color.a])
end

#add ⇒ Object 



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# File 'lib/ruby2d/camera/circle.rb', line 40

def add
  @hide = false
end

#remove ⇒ Object 



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# File 'lib/ruby2d/camera/circle.rb', line 36

def remove
  @hide = true
end

#z=(z) ⇒ Object 



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# File 'lib/ruby2d/camera/circle.rb', line 31

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