|  | @@ -681,6 +681,8 @@ const squareOne = {
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				|  |  |              0.7
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				|  |  |            );
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				|  |  |            floorFlag.anchor(0, 1);
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				|  |  | +          if (gameOperation === 'minus')
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				|  |  | +            floorFlag.x -= self.floor.list[0].width;
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				|  |  |          } else {
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				|  |  |            let min = self.floor.selectedIndex,
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				|  |  |              max = self.floor.correctIndex;
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				|  | @@ -704,15 +706,17 @@ const squareOne = {
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				|  |  |              0.7
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				|  |  |            );
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				|  |  |            floorFlag.anchor(0, 1);
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				|  |  | +          if (gameOperation === 'minus')
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				|  |  | +            floorFlag.x -= self.floor.list[0].width;
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				|  |  |          } else {
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				|  |  | -          let min = self.floor.selectedIndex,
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				|  |  | -            max = self.floor.curIndex;
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				|  |  | -          if (min < max) {
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				|  |  | -            for (let i = min + 1; i <= max; i++) {
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				|  |  | -              self.floor.list[i].fillColor = colors.red;
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				|  |  | -              self.floor.list[i].alpha = 1;
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				|  |  | -            }
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				|  |  | +          let max = self.floor.selectedIndex,
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				|  |  | +            min = self.floor.curIndex;
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				|  |  | +          //if (min < max) {
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				|  |  | +          for (let i = min + 1; i <= max; i++) {
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				|  |  | +            self.floor.list[i].fillColor = colors.red;
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				|  |  | +            self.floor.list[i].alpha = 1;
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				|  |  |            }
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				|  |  | +          //}
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				|  |  |          }
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				|  |  |        }
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				|  |  |  
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