Module: AuthorEngine::Part::Common

Included in:
Game
Defined in:
lib/author_engine/game/common/parts/common.rb

Instance Method Summary collapse

Instance Method Details

#distance(x1, y1, x2, y2) ⇒ Object 



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# File 'lib/author_engine/game/common/parts/common.rb', line 23

def distance(x1, y1, x2, y2)
  dx = x2 - x1
  dy = y2 - y1

  Math.sqrt(dx * dx + dy * dy)
end

#fps ⇒ Object

returns frames per seconds



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# File 'lib/author_engine/game/common/parts/common.rb', line 15

def fps
  if RUBY_ENGINE == "opal"
    AuthorEngine::GameRunner.instance.fps
  else
    Gosu.fps
  end
end

#height ⇒ Object

returns display height



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# File 'lib/author_engine/game/common/parts/common.rb', line 10

def height
  128
end

#levels ⇒ Object 



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# File 'lib/author_engine/game/common/parts/common.rb', line 30

def levels
  @authorengine_levels ? @authorengine_levels : AuthorEngine::GameRunner.instance.levels
end

#milliseconds ⇒ Object

returns number of milliseconds since game started



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# File 'lib/author_engine/game/common/parts/common.rb', line 35

def milliseconds
  if RUBY_ENGINE == "opal"
    @__initial_milliseconds ||= `performance.now()`
    (`performance.now()` - @__initial_milliseconds)
  else
    Gosu.milliseconds
  end
end

#width ⇒ Object

returns display width



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# File 'lib/author_engine/game/common/parts/common.rb', line 5

def width
  128
end