ilikecats/stk-code_catmod
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Fixed world update to be fixed at the physics frame rate.

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This commit is contained in:
hiker 2018-02-12 09:54:46 +11:00
parent 4d03fbd1fb
commit c7bc47f2e3
3 changed files with 41 additions and 54 deletions
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91
src/main_loop.cpp
View File

@ -62,6 +62,7 @@ MainLoop::~MainLoop()
*/
float MainLoop::getLimitedDt()
{
m_prev_time = m_curr_time;
float dt = 0;
// If we are doing a replay, use the dt from the history file
if (World::getWorld() && history->replayHistory() )
@ -79,7 +80,6 @@ float MainLoop::getLimitedDt()
}
IrrlichtDevice* device = irr_driver->getDevice();
m_prev_time = m_curr_time;
while( 1 )
{
@ -227,82 +227,69 @@ void MainLoop::run()
IrrlichtDevice* device = irr_driver->getDevice();
m_curr_time = device->getTimer()->getRealTime();
// DT keeps track of the leftover time, since the race update
// happens in fixed timesteps
float left_over_time = 0;
while(!m_abort)
{
PROFILER_PUSH_CPU_MARKER("Main loop", 0xFF, 0x00, 0xF7);
m_prev_time = m_curr_time;
float dt = getLimitedDt();
left_over_time += getLimitedDt();
int num_steps = int(left_over_time * stk_config->m_physics_fps);
float dt = 1.0f / stk_config->m_physics_fps;
left_over_time -= num_steps * dt ;
if (!m_abort && !ProfileWorld::isNoGraphics())
{
float frame_duration = num_steps * dt;
// Render the previous frame, and also handle all user input.
PROFILER_PUSH_CPU_MARKER("IrrDriver update", 0x00, 0x00, 0x7F);
irr_driver->update(dt);
irr_driver->update(frame_duration);
PROFILER_POP_CPU_MARKER();
}
if (World::getWorld()) // race is active if world exists
{
PROFILER_PUSH_CPU_MARKER("Update race", 0, 255, 255);
updateRace(dt);
PROFILER_POP_CPU_MARKER();
} // if race is active
// We need to check again because update_race may have requested
// the main loop to abort; and it's not a good idea to continue
// since the GUI engine is no more to be called then.
// Also only do music, input, and graphics update if graphics are
// enabled.
if (!m_abort && !ProfileWorld::isNoGraphics())
{
PROFILER_PUSH_CPU_MARKER("Input/GUI", 0x7F, 0x00, 0x00);
input_manager->update(dt);
#ifdef ENABLE_WIIUSE
wiimote_manager->update();
#endif
GUIEngine::update(dt);
#ifdef ENABLE_WIIUSE
wiimote_manager->update();
#endif
input_manager->update(frame_duration);
GUIEngine::update(frame_duration);
PROFILER_POP_CPU_MARKER();
// Update sfx and music after graphics, so that graphics code
// can use as many threads as possible without interfering
// with audio
PROFILER_PUSH_CPU_MARKER("Music", 0x7F, 0x00, 0x00);
SFXManager::get()->update();
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("Protocol manager update", 0x7F, 0x00, 0x7F);
if (STKHost::existHost())
{
if (STKHost::get()->requestedShutdown())
STKHost::get()->shutdown();
else
ProtocolManager::getInstance()->update(dt);
}
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("Database polling update", 0x00, 0x7F, 0x7F);
Online::RequestManager::get()->update(dt);
Online::RequestManager::get()->update(frame_duration);
PROFILER_POP_CPU_MARKER();
}
else if (!m_abort && ProfileWorld::isNoGraphics())
for(int i=0; i<num_steps; i++)
{
PROFILER_PUSH_CPU_MARKER("Protocol manager update", 0x7F, 0x00, 0x7F);
if(NetworkConfig::get()->isNetworking())
PROFILER_PUSH_CPU_MARKER("Update race", 0, 255, 255);
if (World::getWorld()) updateRace(dt);
PROFILER_POP_CPU_MARKER();
// We need to check again because update_race may have requested
// the main loop to abort; and it's not a good idea to continue
// since the GUI engine is no more to be called then.
if (m_abort) break;
if (!ProfileWorld::isNoGraphics() && STKHost::existHost() &&
STKHost::get()->requestedShutdown())
{
STKHost::get()->shutdown();
}
PROFILER_PUSH_CPU_MARKER("Protocol manager update",
0x7F, 0x00, 0x7F);
if (NetworkConfig::get()->isNetworking())
ProtocolManager::getInstance()->update(dt);
PROFILER_POP_CPU_MARKER();
PROFILER_PUSH_CPU_MARKER("Database polling update", 0x00, 0x7F, 0x7F);
Online::RequestManager::get()->update(dt);
PROFILER_POP_CPU_MARKER();
}
if (World::getWorld() )
{
World::getWorld()->updateTime(dt);
}
if (World::getWorld()) World::getWorld()->updateTime(dt);
} // while dt > time_step_size
PROFILER_POP_CPU_MARKER();
PROFILER_SYNC_FRAME();

2
src/physics/physics.cpp
View File

@ -152,7 +152,7 @@ void Physics::update(float dt)
// Maximum of three substeps. This will work for framerate down to
// 20 FPS (bullet default frequency is 60 HZ).
m_dynamics_world->stepSimulation(dt, max_num_steps,
m_dynamics_world->stepSimulation(dt, stk_config->m_physics_fps / 20,
1.0f / stk_config->m_physics_fps);
// Now handle the actual collision. Note: flyables can not be removed