| 摘要 |
PROBLEM TO BE SOLVED: To enhance a possibility of recognition of presence of an object in an area even if a detection means assumed to detect presence of the object in the area differs from a detection means for actually detecting presence of the object in the area.SOLUTION: When an object exists in each area on a game board, a sensor outputting a detection signal to be turned on is stored as area identification information. When receiving a detection signal from a sensor, a lamp control CPU reads a line of area identification information (step 3204) when the lamp control CPU cannot determine an area where the object exists based on the area identification information (No for step 3202), removes sensors from sensors (steps 3206-3210) when the number of the sensors, where the detection signal is on in the line, is 3 or more (Yes for step 3205), and determines the area in the line as an area where the object exists when the area can be determined (step 3203). |
