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- i_time: Add I_GetBuildTimeFrac().

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* Currently not needed, but adding for feature parity.
This commit is contained in:
Mitchell Richters 2020-08-25 17:50:09 +10:00 committed by Christoph Oelckers
parent 2231386830
commit be5419e77c
2 changed files with 16 additions and 1 deletions
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14
source/common/utility/i_time.cpp
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@ -79,6 +79,11 @@ static uint64_t TicToNS(int tic)
return static_cast<uint64_t>(tic) * 1'000'000'000 / GameTicRate;
}
static uint64_t BuildTicToNS(int tic)
{
return static_cast<uint64_t>(tic) * 1'000'000'000 / 120;
}
void I_SetFrameTime()
{
// Must only be called once per frame/swapbuffers.
@ -184,6 +189,15 @@ double I_GetTimeFrac()
return (CurrentFrameStartTime - ticStartTime) / (double)(ticNextTime - ticStartTime);
}
double I_GetBuildTimeFrac()
{
int currentTic = NSToBuildTic(CurrentFrameStartTime - FirstFrameStartTime);
uint64_t ticStartTime = FirstFrameStartTime + BuildTicToNS(currentTic);
uint64_t ticNextTime = FirstFrameStartTime + BuildTicToNS(currentTic + 1);
return (CurrentFrameStartTime - ticStartTime) / (double)(ticNextTime - ticStartTime);
}
void I_FreezeTime(bool frozen)
{
if (frozen)

3
source/common/utility/i_time.h
View file

@ -12,13 +12,14 @@ int I_GetTime();
// same, but using nanoseconds
uint64_t I_GetTimeNS();
// Called by Build games in liew of totalclock, returns current time in tics at ticrate of 120.
// Called by Build games in lieu of totalclock, returns current time in tics at ticrate of 120.
int I_GetBuildTime();
// Reset timer variables to zero when called.
void I_ResetTime();
double I_GetTimeFrac();
double I_GetBuildTimeFrac();
// like I_GetTime, except it waits for a new tic before returning
int I_WaitForTic(int);