Project1

标题: 位图wave效果 [打印本页]

---

作者: RPGzh500223    时间: 2022-4-28 18:35
标题: 位图wave效果


直接代码

RUBY 代码复制

class Bitmap
  def to_int
    self.object_id
  end
 
  # src_bitmap    源位图，必须与自身位图同尺寸
  # wave_length  【无符号整型】   波长对应一个Math::PI
  # wave_amp     【无符号整型】   波高
  # wave_speed   【基本整型】     影响波动快慢
  # wave_phase   【基本整型】     波动起始的角度值(一般0...360)
  def wave(src_bitmap, wave_length, wave_amp, wave_speed = 1, wave_phase = 0)
    @src_bitmap = src_bitmap
    @wave_length = wave_length
    @wave_amp = wave_amp
    @wave_speed = wave_speed    
    @wave_phase = wave_phase
    @waving = (wave_length * wave_amp * wave_speed != 0)
 
    # 说明用变量
    @wave_step = Math::PI / wave_length
    @wave_dcos = Math.cos(@wave_step) * 2
  end
 
  # 说明用方法： WaveH 的RGSS 实现
  def wave_update
    return unless @waving
    self.clear
 
    rad = @wave_phase * Math::A2R
    s0 = Math.sin(rad)
    s1 = Math.sin(rad + @wave_step)
    s2 = 0
 
    src_rect = Rect.new(0, 0, @src_bitmap.width, 1)
    self.blt((s0 * @wave_amp).round, 0, @src_bitmap, src_rect)
 
    src_rect.y += 1
    self.blt((s1 * @wave_amp).round, 1, @src_bitmap, src_rect)
 
    2.upto(self.height - 1) do |y|
      s2 = @wave_dcos * s1 - s0
      s0, s1 = s1, s2
 
      src_rect.y += 1
      self.blt((s2 * @wave_amp).round, y, @src_bitmap, src_rect)
    end
 
    @wave_phase = (@wave_phase + @wave_speed) % 360
  end
 
 
  dll = "Wave.dll"
  WaveH = Win32API.new(dll, 'bitmapWaveH', 'LLLLLL', 'V')
  def wave_update_dllH
    return unless @waving
    @wave_phase = WaveH.call(self, @src_bitmap, @wave_phase, 
      @wave_length, @wave_amp, @wave_speed)
  end
 
  # 适用于250 * 250大小以下的位图
  WaveV = Win32API.new(dll, 'bitmapWaveV', 'LLLLLL', 'L')
  def wave_update_dllV
    return unless @waving
    @wave_phase = WaveV.call(self, @src_bitmap, @wave_phase, 
      @wave_length, @wave_amp, @wave_speed)
  end
 
  WaveV_line4 = Win32API.new(dll, 'bitmapWaveV_line4', 'LLLLLL', 'L')
  def wave_update_dllV_line4
    return unless @waving
    @wave_phase = WaveV_line4.call(self, @src_bitmap, @wave_phase, 
      @wave_length, @wave_amp, @wave_speed)
  end
 
  WaveHV = Win32API.new(dll, 'bitmapWaveHV', 'LLLLLL', 'L')
  def wave_update_dllHV
    return unless @waving
    @wave_phase = WaveHV.call(self, @src_bitmap, @wave_phase, 
      @wave_length, @wave_amp, @wave_speed)
  end
end
 
 
 
src = Bitmap.new("temp2.jpeg")
#src.fill_rect(src.rect, Color.new(0, 255, 255))
 
sprite = Sprite.new
sprite.bitmap = Bitmap.new(src.width, src.height)
sprite.bitmap.wave(src, 50, 10, 2, 0)
sprite.x = 320
sprite.y = 240
sprite.ox = src.width / 2
sprite.oy = src.height / 2
 
 
str = "Bitmap(#{src.width} * #{src.height})\n"
count, t = 0, Time.now
loop do
  sprite.bitmap.wave_update_dllH
  break if Time.now - t >= 1.0
  count += 1
end
str << "Bitmap#wave_update_dllH => #{count} 次/秒\n"
 
count, t = 0, Time.now
loop do
  sprite.bitmap.wave_update_dllV
  break if Time.now - t >= 1.0
  count += 1
end
str << "Bitmap#wave_update_dllV => #{count} 次/秒\n"
 
count, t = 0, Time.now
loop do
  sprite.bitmap.wave_update_dllV_line4
  break if Time.now - t >= 1.0
  count += 1
end
str << "Bitmap#wave_update_dllV_line4 => #{count} 次/秒\n"
 
count, t = 0, Time.now
loop do
  sprite.bitmap.wave_update_dllHV
  break if Time.now - t >= 1.0
  count += 1
end
str << "Bitmap#wave_update_dllHV => #{count} 次/秒\n"
 
print str
 
 
loop do
  Graphics.update
  #sprite.bitmap.wave_update_dllH
  #sprite.bitmap.wave_update_dllV
  #sprite.bitmap.wave_update_dllV_line4
  sprite.bitmap.wave_update_dllHV
end

class Bitmap


  def to_int


    self.object_id


  end


 


  # src_bitmap    源位图，必须与自身位图同尺寸


  # wave_length  【无符号整型】   波长对应一个Math::PI


  # wave_amp     【无符号整型】   波高


  # wave_speed   【基本整型】     影响波动快慢


  # wave_phase   【基本整型】     波动起始的角度值(一般0...360)


  def wave(src_bitmap, wave_length, wave_amp, wave_speed = 1, wave_phase = 0)


    @src_bitmap = src_bitmap


    @wave_length = wave_length


    @wave_amp = wave_amp


    @wave_speed = wave_speed    


    @wave_phase = wave_phase


    @waving = (wave_length * wave_amp * wave_speed != 0)


 


    # 说明用变量


    @wave_step = Math::PI / wave_length


    @wave_dcos = Math.cos(@wave_step) * 2


  end


 


  # 说明用方法： WaveH 的RGSS 实现


  def wave_update


    return unless @waving


    self.clear


 


    rad = @wave_phase * Math::A2R


    s0 = Math.sin(rad)


    s1 = Math.sin(rad + @wave_step)


    s2 = 0


 


    src_rect = Rect.new(0, 0, @src_bitmap.width, 1)


    self.blt((s0 * @wave_amp).round, 0, @src_bitmap, src_rect)


 


    src_rect.y += 1


    self.blt((s1 * @wave_amp).round, 1, @src_bitmap, src_rect)


 


    2.upto(self.height - 1) do |y|


      s2 = @wave_dcos * s1 - s0


      s0, s1 = s1, s2


 


      src_rect.y += 1


      self.blt((s2 * @wave_amp).round, y, @src_bitmap, src_rect)


    end


 


    @wave_phase = (@wave_phase + @wave_speed) % 360


  end


 


 


  dll = "Wave.dll"


  WaveH = Win32API.new(dll, 'bitmapWaveH', 'LLLLLL', 'V')


  def wave_update_dllH


    return unless @waving


    @wave_phase = WaveH.call(self, @src_bitmap, @wave_phase, 


      @wave_length, @wave_amp, @wave_speed)


  end


 


  # 适用于250 * 250大小以下的位图


  WaveV = Win32API.new(dll, 'bitmapWaveV', 'LLLLLL', 'L')


  def wave_update_dllV


    return unless @waving


    @wave_phase = WaveV.call(self, @src_bitmap, @wave_phase, 


      @wave_length, @wave_amp, @wave_speed)


  end


 


  WaveV_line4 = Win32API.new(dll, 'bitmapWaveV_line4', 'LLLLLL', 'L')


  def wave_update_dllV_line4


    return unless @waving


    @wave_phase = WaveV_line4.call(self, @src_bitmap, @wave_phase, 


      @wave_length, @wave_amp, @wave_speed)


  end


 


  WaveHV = Win32API.new(dll, 'bitmapWaveHV', 'LLLLLL', 'L')


  def wave_update_dllHV


    return unless @waving


    @wave_phase = WaveHV.call(self, @src_bitmap, @wave_phase, 


      @wave_length, @wave_amp, @wave_speed)


  end


end


 


 


 


src = Bitmap.new("temp2.jpeg")


#src.fill_rect(src.rect, Color.new(0, 255, 255))


 


sprite = Sprite.new


sprite.bitmap = Bitmap.new(src.width, src.height)


sprite.bitmap.wave(src, 50, 10, 2, 0)


sprite.x = 320


sprite.y = 240


sprite.ox = src.width / 2


sprite.oy = src.height / 2


 


 


str = "Bitmap(#{src.width} * #{src.height})\n"


count, t = 0, Time.now


loop do


  sprite.bitmap.wave_update_dllH


  break if Time.now - t >= 1.0


  count += 1


end


str << "Bitmap#wave_update_dllH => #{count} 次/秒\n"


 


count, t = 0, Time.now


loop do


  sprite.bitmap.wave_update_dllV


  break if Time.now - t >= 1.0


  count += 1


end


str << "Bitmap#wave_update_dllV => #{count} 次/秒\n"


 


count, t = 0, Time.now


loop do


  sprite.bitmap.wave_update_dllV_line4


  break if Time.now - t >= 1.0


  count += 1


end


str << "Bitmap#wave_update_dllV_line4 => #{count} 次/秒\n"


 


count, t = 0, Time.now


loop do


  sprite.bitmap.wave_update_dllHV


  break if Time.now - t >= 1.0


  count += 1


end


str << "Bitmap#wave_update_dllHV => #{count} 次/秒\n"


 


print str


 


 


loop do


  Graphics.update


  #sprite.bitmap.wave_update_dllH


  #sprite.bitmap.wave_update_dllV


  #sprite.bitmap.wave_update_dllV_line4


  sprite.bitmap.wave_update_dllHV


end

迭代计算正弦值（百度“快速计算正弦波”)，所以就没考虑周期（实际只能提速一丢丢）
最后还是希望能回复一下测试结果

temp.png (18.04 KB, 下载次数: 6)

下载附件  保存到相册

2022-4-28 18:33 上传

迭代计算的误差

waveHV.jpg (114.15 KB, 下载次数: 4)

下载附件  保存到相册

2022-4-28 18:33 上传

WaveHV的示意图

waveHV.gif (900.74 KB, 下载次数: 6)

下载附件  保存到相册

2022-4-29 13:10 上传

Wave.zip

2022-4-28 18:35 上传

点击文件名下载附件

4.31 KB, 下载次数: 5

Wave.dll

---

作者: 百里_飞柳    时间: 2022-4-28 20:29
整点gif看看啊，和va的wave的效果哪里不一样（）

gif录制工具

---

作者: guoxiaomi    时间: 2022-4-28 22:47
来了！

---

欢迎光临 Project1 (https://rpg.blue/)

Powered by Discuz! X3.1