54 lines
1.5 KiB
Lua
54 lines
1.5 KiB
Lua
require("class")
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local sides=require("sides")
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SignReader=class("SignReader")
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function SignReader:ctor(sign)
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self.s=sign
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end
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function SignReader:countSigns()
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local cnt=0
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if(self:get(sides.north) ~= nil) then cnt=cnt+1 end
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if(self:get(sides.south) ~= nil) then cnt=cnt+1 end
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if(self:get(sides.east) ~= nil) then cnt=cnt+1 end
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if(self:get(sides.west) ~= nil) then cnt=cnt+1 end
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if(self:get(sides.up) ~= nil) then cnt=cnt+1 end
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if(self:get(sides.down) ~= nil) then cnt=cnt+1 end
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return cnt
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end
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function SignReader:getFirstSignSide()
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if(self:get(sides.north)~=nil) then return sides.north end
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if(self:get(sides.south)~=nil) then return sides.south end
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if(self:get(sides.east)~=nil) then return sides.east end
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if(self:get(sides.west)~=nil) then return sides.west end
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if(self:get(sides.up)~=nil) then return sides.up end
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if(self:get(sides.down)~=nil) then return sides.down end
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return -1
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end
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function SignReader:get(side)
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if(side == nil) then -- Try Smart Choice
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if(self:countSigns() == 1) then
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return self.s.getValue(self:getFirstSignSide())
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else
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return nil -- Cannot choose
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end
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else
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return self.s.getValue(side)
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end
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end
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function SignReader:set(val,side)
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if(side == nil) then -- Try Smart Choice
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if(self:countSigns() == 1) then
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return self.s.setValue(self:getFirstSignSide(),val)
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else
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return nil -- Cannot choose
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end
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else
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return self.s.setValue(side,val)
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end
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end
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