core/movie: Add future event and timeline check

As specified in TASVideos [Laws of TAS](http://tasvideos.org/LawsOfTAS/OnSavestates.html)
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zhupengfei 2020-07-08 21:24:50 +08:00
parent b6f8cc884f
commit e188f86582
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@ -2,6 +2,7 @@
// Licensed under GPLv2 or any later version // Licensed under GPLv2 or any later version
// Refer to the license.txt file included. // Refer to the license.txt file included.
#include <algorithm>
#include <cstring> #include <cstring>
#include <stdexcept> #include <stdexcept>
#include <string> #include <string>
@ -182,10 +183,16 @@ void Movie::serialize(Archive& ar, const unsigned int file_version) {
if (play_mode == PlayMode::Recording) { if (play_mode == PlayMode::Recording) {
SaveMovie(); SaveMovie();
} }
if (current_byte >= recorded_input.size()) { if (recorded_input_.size() >= recorded_input.size()) {
throw std::runtime_error( throw std::runtime_error("Future event savestate not allowed in R/O mode");
"This savestate was created at a later point and must be loaded in R+W mode");
} }
// Ensure that the current movie and savestate movie are in the same timeline
if (std::mismatch(recorded_input_.begin(), recorded_input_.end(),
recorded_input.begin())
.first != recorded_input_.end()) {
throw std::runtime_error("Timeline mismatch not allowed in R/O mode");
}
play_mode = PlayMode::Playing; play_mode = PlayMode::Playing;
total_input = GetInputCount(recorded_input); total_input = GetInputCount(recorded_input);
} else { } else {