问题拆分
An imported aim, build, or traversal mode often steals buttons, changes camera assumptions, or makes a player stop moving at the wrong moment.
记录预期结果和第一次失败的位置，并确保每次修改都可以撤销。
实践步骤
List the base controls, reserve one context transition, define how the camera behaves in that state, and give the player visible feedback when the imported system is active.
使用原创占位素材和离线测试环境，开始前先备份。
验证与记录
Test the mechanic while moving, during a camera transition, after a pause, and after a reload. The control contract should remain predictable in all four cases.
记录版本、步骤、结果和恢复方式，形成短小的现场笔记。