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racing:: checksum to disable ghosts on incorrect tracks

This commit is contained in:
Zeno Rogue 2018-12-23 13:11:58 +01:00
parent 1d413a7d97
commit 9a47148ae7
1 changed files with 21 additions and 3 deletions
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24
racing.cpp
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@ -64,6 +64,7 @@ struct ghostmoment {
struct ghost {
charstyle cs;
int result;
int checksum;
time_t timestamp;
vector<ghostmoment> history;
};
@ -100,11 +101,11 @@ void hwrite(hstream& hs, const ghostmoment& m) {
}
void hread(hstream& hs, ghost& gh) {
hread(hs, gh.cs, gh.result, gh.timestamp, gh.history);
hread(hs, gh.cs, gh.result, gh.timestamp, gh.checksum, gh.history);
}
void hwrite(hstream& hs, const ghost& gh) {
hwrite(hs, gh.cs, gh.result, gh.timestamp, gh.history);
hwrite(hs, gh.cs, gh.result, gh.timestamp, gh.checksum, gh.history);
}
bool read_ghosts(string seed, int mcode) {
@ -181,6 +182,8 @@ race_cellinfo& get_info(cell *c) {
return rti[rti_id.at(c)];
}
int race_checksum;
ld start_line_width;
void generate_track() {
@ -553,6 +556,21 @@ void generate_track() {
*/
track_ready = true;
race_checksum = hrand(1000000);
auto& gh = race_ghosts[{track_code, modecode()}] [specialland];
int ngh = 0;
for(int i=0; i<isize(gh); i++) {
if(gh[i].checksum != race_checksum) {
println(hlog, "wrong checksum: %x, should be %x", gh[i].checksum, race_checksum);
}
else {
if(i != ngh)
gh[ngh] = move(gh[i]);
ngh++;
}
}
gh.resize(ngh);
race_start_tick = 0;
for(int i=0; i<MAXPLAYER; i++) race_finish_tick[i] = 0;
@ -946,7 +964,7 @@ void race_won() {
auto &subtrack = race_ghosts[{track_code, modecode()}] [specialland];
subtrack.emplace_back(ghost{gcs, ticks - race_start_tick, time(NULL), current_history[current_player]});
subtrack.emplace_back(ghost{gcs, ticks - race_start_tick, race_checksum, time(NULL), current_history[current_player]});
sort(subtrack.begin(), subtrack.end(), [] (const ghost &g1, const ghost &g2) { return g1.result > g2.result; });
if(isize(subtrack) > ghosts_to_save && ghosts_to_save > 0)
subtrack.resize(ghosts_to_save);