/* The main game loop */
GAMECODE gameLoop()
{
static uint32_t lastFlushTime = 0;
static int renderBudget = 0; // Scaled time spent rendering minus scaled time spent updating.
static bool previousUpdateWasRender = false;
const Rational renderFraction(2, 5); // Minimum fraction of time spent rendering.
const Rational updateFraction = Rational(1) - renderFraction;
countUpdate(false); // kick off with correct counts
while (true)
{
// Receive NET_BLAH messages.
// Receive GAME_BLAH messages, and if it's time, process exactly as many GAME_BLAH messages as required to be able to tick the gameTime.
recvMessage();
// Update gameTime and graphicsTime, and corresponding deltas. Note that gameTime and graphicsTime pause, if we aren't getting our GAME_GAME_TIME messages.
gameTimeUpdate(renderBudget > 0 || previousUpdateWasRender);
if (deltaGameTime == 0)
{
break; // Not doing a game state update.
}
ASSERT(!paused && !gameUpdatePaused(), "Nonsensical pause values.");
unsigned before = wzGetTicks();
syncDebug("Begin game state update, gameTime = %d", gameTime);
gameStateUpdate();
syncDebug("End game state update, gameTime = %d", gameTime);
unsigned after = wzGetTicks();
renderBudget -= (after - before) * renderFraction.n;
renderBudget = std::max(renderBudget, (-updateFraction * 500).floor());
previousUpdateWasRender = false;
ASSERT(deltaGraphicsTime == 0, "Shouldn't update graphics and game state at once.");
}
if (realTime - lastFlushTime >= 400u)
{
lastFlushTime = realTime;
NETflush(); // Make sure that we aren't waiting too long to send data.
}
unsigned before = wzGetTicks();
GAMECODE renderReturn = renderLoop();
unsigned after = wzGetTicks();
renderBudget += (after - before) * updateFraction.n;
renderBudget = std::min(renderBudget, (renderFraction * 500).floor());
previousUpdateWasRender = true;
return renderReturn;
}
/* The main game loop */
GAMECODE gameLoop(void)
{
static uint32_t lastFlushTime = 0;
bool didTick = false;
while (true)
{
// Receive NET_BLAH messages.
// Receive GAME_BLAH messages, and if it's time, process exactly as many GAME_BLAH messages as required to be able to tick the gameTime.
recvMessage();
// Update gameTime and graphicsTime, and corresponding deltas. Note that gameTime and graphicsTime pause, if we aren't getting our GAME_GAME_TIME messages.
gameTimeUpdate();
if (deltaGameTime == 0)
{
break; // Not doing a game state update.
}
didTick = true;
ASSERT(!paused && !gameUpdatePaused() && !editPaused(), "Nonsensical pause values.");
syncDebug("Begin game state update, gameTime = %d", gameTime);
gameStateUpdate();
syncDebug("End game state update, gameTime = %d", gameTime);
ASSERT(deltaGraphicsTime == 0, "Shouldn't update graphics and game state at once.");
}
if (didTick || realTime - lastFlushTime < 400u)
{
lastFlushTime = realTime;
NETflush(); // Make sure the game time tick message is really sent over the network, and that we aren't waiting too long to send data.
}
return renderLoop();
}
static void gameStateUpdate()
{
syncDebug("map = \"%s\", pseudorandom 32-bit integer = 0x%08X, allocated = %d %d %d %d %d %d %d %d %d %d, position = %d %d %d %d %d %d %d %d %d %d", game.map, gameRandU32(),
NetPlay.players[0].allocated, NetPlay.players[1].allocated, NetPlay.players[2].allocated, NetPlay.players[3].allocated, NetPlay.players[4].allocated, NetPlay.players[5].allocated, NetPlay.players[6].allocated, NetPlay.players[7].allocated, NetPlay.players[8].allocated, NetPlay.players[9].allocated,
NetPlay.players[0].position, NetPlay.players[1].position, NetPlay.players[2].position, NetPlay.players[3].position, NetPlay.players[4].position, NetPlay.players[5].position, NetPlay.players[6].position, NetPlay.players[7].position, NetPlay.players[8].position, NetPlay.players[9].position
);
for (unsigned n = 0; n < MAX_PLAYERS; ++n)
{
syncDebug("Player %d = \"%s\"", n, NetPlay.players[n].name);
}
// Add version string to desynch logs. Different version strings will not trigger a desynch dump per se, due to the syncDebug{Get, Set}Crc guard.
auto crc = syncDebugGetCrc();
syncDebug("My client version = %s", version_getVersionString());
syncDebugSetCrc(crc);
// Actually send pending droid orders.
sendQueuedDroidInfo();
sendPlayerGameTime();
NETflush(); // Make sure the game time tick message is really sent over the network.
if (!paused && !scriptPaused())
{
/* Update the event system */
if (!bInTutorial)
{
eventProcessTriggers(gameTime / SCR_TICKRATE);
}
else
{
eventProcessTriggers(realTime / SCR_TICKRATE);
}
updateScripts();
}
// Update abandoned structures
handleAbandonedStructures();
// Update the visibility change stuff
visUpdateLevel();
// Put all droids/structures/features into the grid.
gridReset();
// Check which objects are visible.
processVisibility();
// Update the map.
mapUpdate();
//update the findpath system
fpathUpdate();
// update the command droids
cmdDroidUpdate();
fireWaitingCallbacks(); //Now is the good time to fire waiting callbacks (since interpreter is off now)
for (unsigned i = 0; i < MAX_PLAYERS; i++)
{
//update the current power available for a player
updatePlayerPower(i);
DROID *psNext;
for (DROID *psCurr = apsDroidLists[i]; psCurr != nullptr; psCurr = psNext)
{
// Copy the next pointer - not 100% sure if the droid could get destroyed but this covers us anyway
psNext = psCurr->psNext;
droidUpdate(psCurr);
}
for (DROID *psCurr = mission.apsDroidLists[i]; psCurr != nullptr; psCurr = psNext)
{
/* Copy the next pointer - not 100% sure if the droid could
get destroyed but this covers us anyway */
psNext = psCurr->psNext;
missionDroidUpdate(psCurr);
}
// FIXME: These for-loops are code duplicationo
STRUCTURE *psNBuilding;
for (STRUCTURE *psCBuilding = apsStructLists[i]; psCBuilding != nullptr; psCBuilding = psNBuilding)
{
/* Copy the next pointer - not 100% sure if the structure could get destroyed but this covers us anyway */
psNBuilding = psCBuilding->psNext;
structureUpdate(psCBuilding, false);
}
for (STRUCTURE *psCBuilding = mission.apsStructLists[i]; psCBuilding != nullptr; psCBuilding = psNBuilding)
{
/* Copy the next pointer - not 100% sure if the structure could get destroyed but this covers us anyway. It shouldn't do since its not even on the map!*/
psNBuilding = psCBuilding->psNext;
structureUpdate(psCBuilding, true); // update for mission
}
}
missionTimerUpdate();
proj_UpdateAll();
FEATURE *psNFeat;
for (FEATURE *psCFeat = apsFeatureLists[0]; psCFeat; psCFeat = psNFeat)
{
psNFeat = psCFeat->psNext;
featureUpdate(psCFeat);
}
// Clean up dead droid pointers in UI.
hciUpdate();
// Free dead droid memory.
objmemUpdate();
// Must end update, since we may or may not have ticked, and some message queue processing code may vary depending on whether it's in an update.
gameTimeUpdateEnd();
// Must be at the beginning or end of each tick, since countUpdate is also called randomly (unsynchronised) between ticks.
countUpdate(true);
static int i = 0;
if (i++ % 10 == 0) // trigger every second
{
jsDebugUpdate();
}
}
// ///////////////// /////////////////////////////////////////////////
// Main Front end game loop.
TITLECODE titleLoop(void)
{
TITLECODE RetCode = TITLECODE_CONTINUE;
pie_SetDepthBufferStatus(DEPTH_CMP_ALWAYS_WRT_ON);
pie_SetFogStatus(false);
screen_RestartBackDrop();
wzShowMouse(true);
// When we first init the game, firstcall is true.
if (firstcall)
{
firstcall = false;
// First check to see if --host was given as a command line option, if not,
// then check --join and if neither, run the normal game menu.
if( hostlaunch )
{
ingame.bHostSetup = true;
bMultiPlayer = true;
bMultiMessages = true;
game.type = SKIRMISH; // needed?
changeTitleMode(MULTIOPTION);
hostlaunch = false; // reset the bool to default state.
}
else if(strlen(iptoconnect) )
{
joinGame(iptoconnect, 0);
}
else
{
changeTitleMode(TITLE); // normal game, run main title screen.
}
// Using software cursors (when on) for these menus due to a bug in SDL's SDL_ShowCursor()
wzSetCursor(CURSOR_DEFAULT);
}
if (titleMode != MULTIOPTION && titleMode != MULTILIMIT && titleMode != STARTGAME)
screen_disableMapPreview();
switch(titleMode) // run relevant title screen code.
{
// MULTIPLAYER screens
case PROTOCOL:
runConnectionScreen(); // multiplayer connection screen.
break;
case MULTIOPTION:
runMultiOptions();
break;
case GAMEFIND:
runGameFind();
break;
case MULTI:
runMultiPlayerMenu();
break;
case MULTILIMIT:
runLimitScreen();
break;
case KEYMAP:
runKeyMapEditor();
break;
case TITLE:
runTitleMenu();
break;
case SINGLE:
runSinglePlayerMenu();
break;
case TUTORIAL:
runTutorialMenu();
break;
// case GRAPHICS:
// runGraphicsOptionsMenu();
// break;
case CREDITS:
runCreditsScreen();
break;
// case DEMOMODE:
// runDemoMenu();
// break;
// case VIDEO:
// runVideoOptionsMenu();
// break;
case OPTIONS:
runOptionsMenu();
break;
case GAME:
runGameOptionsMenu();
break;
case GRAPHICS_OPTIONS:
runGraphicsOptionsMenu();
break;
case AUDIO_OPTIONS:
runAudioOptionsMenu();
break;
case VIDEO_OPTIONS:
runVideoOptionsMenu();
break;
case MOUSE_OPTIONS:
runMouseOptionsMenu();
break;
case QUIT:
RetCode = TITLECODE_QUITGAME;
break;
case STARTGAME:
case LOADSAVEGAME:
if (titleMode == LOADSAVEGAME)
{
RetCode = TITLECODE_SAVEGAMELOAD;
}
else
{
RetCode = TITLECODE_STARTGAME;
}
return RetCode; // don't flip!
case SHOWINTRO:
pie_SetFogStatus(false);
pie_ScreenFlip(CLEAR_BLACK);
changeTitleMode(TITLE);
RetCode = TITLECODE_SHOWINTRO;
break;
default:
debug( LOG_FATAL, "unknown title screen mode" );
abort();
}
NETflush(); // Send any pending network data.
audio_Update();
pie_SetFogStatus(false);
pie_ScreenFlip(CLEAR_BLACK);//title loop
if ((keyDown(KEY_LALT) || keyDown(KEY_RALT))
/* Check for toggling display mode */
&& keyPressed(KEY_RETURN)) {
wzToggleFullscreen();
}
return RetCode;
}
