IMPORTANT - This is necessary for these background data. This is a hashmap you know well such as Java, C#, and Python, etc. And the way you use is the same as those hashmap. When you wanna use HashMap[] objects, I suggest you set on keys like "identify.specific_key" and use only this object. But you have to take care of a hash collision and max elements count. Benchmarks Test Items Normal variables This HashMap Setter 1286.0ms 14383.9ms Getter 1141.3ms 10892.6ms A bottleneck in this process is a part to change a background image. And this is O(n) if n is the key length, so the shorter key is good than the longer one.
