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#ifndef SIM_CORE_H
#define SIM_CORE_H
#include <type_traits>
#include "fixed_point.h"
struct SimState {
fp_t stage_width;
fp_t stage_height;
fp_t camera_x;
fp_t camera_y;
};
static_assert(std::is_trivially_copyable_v<SimState>, "SimState must be trivially copyable for rollback");
static_assert(sizeof(SimState) == 16, "SimState size changed unexpectedly");
#endif // !SIM_CORE_H
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