求助！如何让显示的图片消失？（非事件） - Project1

class Scene_YC_CG
#--------------------------------------------------------------------------
# ● 初始化对像
# menu_index : 命令光标的初期位置
#--------------------------------------------------------------------------
def initialize(menu_index = 0)
@menu_index = menu_index
@parameter = []
@cg=0
@cg_index=[]
end
#--------------------------------------------------------------------------
# ● 主处理
#--------------------------------------------------------------------------
def main
# 生成命令窗口
s1 = "CG1"
s2 = "CG2"
s3 = "CG3"
s4 = "CG4"
s5 = "CG5"
s6 = "CG6"
s7 = "CG7"
s8 = "CG8"
s9 = "CG9"
s10 = "CG10"
s11 = "CG11"
s12 = "CG12"
s13 = "CG13"
s14 = "CG14"
@command_window = Window_Command.new(192, [s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14])
@command_window.index = @menu_index
@command_window.x = 0
@command_window.y = 0
# @cg_show_window=Window_Cg_Show.new
# 执行过渡
Graphics.transition
# 主循环
loop do
# 刷新游戏画面
Graphics.update
# 刷新输入情报
Input.update
# 刷新画面
update
# 如果画面切换的话就中断循环
if $scene != self
break
end
end
# 准备过渡
Graphics.freeze
# 执行过度
Graphics.transition(40)
# 准备过渡
Graphics.freeze
# 释放窗口
@command_window.dispose
# 如果在标题画面切换中的情况下
if $scene.is_a?(Scene_Title)
# 淡入淡出画面
Graphics.transition
Graphics.freeze
end
end
#--------------------------------------------------------------------------
# ● 刷新画面
#--------------------------------------------------------------------------
def update
# 刷新命令窗口
@command_window.update
case @command_window.index
when 0 # Cg1
$game_variables[50]=1
cg_update
when 1 # Cg2
$game_variables[50]=2
cg_update
when 2 # 取消
$game_variables[50]=3
cg_update
when 3 # 取消
$game_variables[50]=4
cg_update
end
# 按下 B 键的情况下
if Input.trigger?(Input::B)
# 演奏取消 SE
$game_system.se_play($data_system.cancel_se)
# 切换到菜单画面
$scene = Scene_YC_Menu.new(1)
return
end
end
#--------------------------------------------------------------------------
# ● 刷新CG画面时的处理
#--------------------------------------------------------------------------
def cg_update
cg = Sprite.new
cg.bitmap = Bitmap.new("Graphics/CG/#{$game_variables[50]}")
end
#--------------------------------------------------------------------------
# ● 选择命令 [取消] 时的处理
#--------------------------------------------------------------------------
def command_cancel
# 演奏确定 SE
$game_system.se_play($data_system.decision_se)
# 切换到菜单画面
$scene = Scene_YC_Menu.new(1)
end
end

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