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Plummeting player numbers
，更多细节参见新收录的资料
A hashmap lookup or a simple *(pointer + offset) both fit the bill.。新收录的资料对此有专业解读
Uniform regions (solid backgrounds, smooth gradients) get stored as large blocks. Detailed regions (edges, textures) get subdivided into smaller blocks. You end up with a compressed representation that preserves detail where it exists and simplifies where it can.
The builder supports: