随手瞎写的

1. def draw_actor_hp1_bar(actor, x, y,height=60)
   
2.     ar = []
   
3.     data = actor.hp
   
4.     names = ["xue4","xue3","xue2","xue1"]
   
5.     n = actor.maxhp / 4
   
6.     4.times do
   
7.       nhp = [[n, data].min, 0].max
   
8.       data -= nhp
   
9.       ar << nhp
   
10.     end
    
11.     for i in 0..3
    
12.       next if i != 3 and ar[i+1] == n
    
13.       bitmap = Bitmap.new("Graphics/Pictures/#{names[i]}")
    
14.       w = 1.0 * ar[i] / n * height
    
15.       src_rect = Rect.new(0, 0, 60, w)
    
16.       self.contents.blt(x, y, bitmap, src_rect)
    
17.     end
    
18.   end

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