DataManager.init
module Math
  def self.radian(degree)
    return (degree.to_f/180) * Math::PI
  end
  
  def self.degree(radian)
    return (radian.to_f/Math::PI) * 180
  end
  
  class << self
    alias theo_sin sin
    alias theo_cos cos
  end
  
  def self.sin(x)
    return theo_sin(x) if x % radian(180) != 0
    return 0.0
  end
  
  def self.cos(x)
    return theo_cos(x) if x % radian(0) != 0
    return 0.0
  end
end

class Window_BulletTest < Window_Base
  @@count = 0
  
  def initialize(x,y,width,height)
    super(x,y,width,height)
    @@count += 1
  end
  
  def update_movement
    self.y -= 3 unless disposed?
  end
  
  alias bullet_dispose dispose
  def dispose
    bullet_dispose
    @@count -= 1
  end
  
  def self.count
    @@count
  end
  
end  

def updates
  Graphics.update
  Input.update
  $bullet.each do |bullet|
    next if bullet.nil?
    bullet.update_movement
    if bullet.y <= 0
      $bullet.delete(bullet) 
      bullet.dispose
    end
  end
  $window.x = $pusat.x + (50*Math.cos(Math.radian($test)))
  $window.y = $pusat.y + (50*Math.sin(Math.radian($test)))
  if Input.press?(:UP)
    $pusat.y -= 3
  elsif Input.press?(:DOWN)
    $pusat.y += 3
  elsif Input.press?(:LEFT)
    $pusat.x -= 3
  elsif Input.press?(:RIGHT)
    $pusat.x += 3
  elsif Input.trigger?(:C)
    puts "shot!"
    $bullet.push(Window_BulletTest.new($pusat.x,$pusat.y,24,24))
  end
  $test += 10
end

$bullet = []
$test = 0
$pusat = Window_Base.new(100-12,200-12,24,24)
$window = Window_Base.new(100-12,200-12,24,24)
$window.viewport = Viewport.new

updates while true