45 lines
886 B
Lua
45 lines
886 B
Lua
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pattern=klass()
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function pattern:init(p)
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self.pflags=pflags:new(p)
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self.nflags={}
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for i=0,31 do -- because the user could change the length
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self.nflags[i]=nflags:new{}
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end
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end
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function pattern:plot(ix, n)
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assert_range(ix,0,self.pflags.len,"ix")
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self.nflags[ix]=nflags:new(n)
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end
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function pattern:silent()
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for i=0,31 do
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if (self.nflags[i].v!=0) return
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end
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return true
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end
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function pattern:key()
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local key=0
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for i=0,self.pflags.len-1 do
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key ^= self.nflags[i]:encode()>>(i%16)
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end
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return key
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end
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function pattern:eq(other)
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if (self.pflags:encode() != other.pflags:encode()) return
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for i=0,self.pflags.len-1 do
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if (self.nflags[i]:encode()!= other.nflags[i]:encode()) return
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end
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return true
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end
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function pattern:map_to(ix)
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self.map_ix=ix
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local at=0x3200+ix*68
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poke4(at+64,self.pflags:encode())
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for i=0,31 do
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poke2(at+i*2,self.nflags[i]:encode())
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end
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end
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