void MouseButtonCallback(int aIndex, int aState)
{
if (aState == GLFW_PRESS)
input.OnPress(Input::TYPE_MOUSE_BUTTON, 0, aIndex);
else
input.OnRelease(Input::TYPE_MOUSE_BUTTON, 0, aIndex);
}
void KeyCallback(int aIndex, int aState)
{
if (aState == GLFW_PRESS)
{
input.OnPress(Input::TYPE_KEYBOARD, 0, aIndex);
switch (aIndex)
{
case GLFW_KEY_F4:
if (glfwGetKey(GLFW_KEY_LALT) || glfwGetKey(GLFW_KEY_RALT))
setgamestate = STATE_QUIT;
break;
case GLFW_KEY_ENTER:
if (glfwGetKey(GLFW_KEY_LALT) || glfwGetKey(GLFW_KEY_RALT))
{
CloseWindow();
SCREEN_FULLSCREEN = !SCREEN_FULLSCREEN;
OpenWindow();
}
break;
case GLFW_KEY_ESC:
if (curgamestate == STATE_PLAY)
{
if (escape)
EscapeMenuExit();
else
EscapeMenuEnter();
}
break;
case 'P':
if (glfwGetKey(GLFW_KEY_LSHIFT) || glfwGetKey(GLFW_KEY_RSHIFT))
{
paused = true;
singlestep = true;
}
else
{
paused = !paused;
}
if (paused)
Pause();
else
Resume();
break;
}
}
else
{
input.OnRelease(Input::TYPE_KEYBOARD, 0, aIndex);
}
}
// common run state
void RunState()
{
#if defined(USE_SDL)
// last ticks
unsigned int ticks = SDL_GetTicks();
#elif defined(USE_SFML)
// timer
sf::Clock timer;
// start timer
timer.Reset();
#elif defined(USE_GLFW)
double prevtime = glfwGetTime();
#endif
// input logging
TiXmlDocument inputlog(RECORD_CONFIG.c_str());
TiXmlElement *inputlogroot;
TiXmlElement *inputlognext;
if (playback)
{
if (!inputlog.LoadFile())
DebugPrint("error loading recording file \"%s\": %s\n", RECORD_CONFIG.c_str(), inputlog.ErrorDesc());
inputlogroot = inputlog.RootElement();
inputlognext = inputlogroot->FirstChildElement();
}
else if (record)
{
inputlogroot = inputlog.LinkEndChild(new TiXmlElement("journal"))->ToElement();
inputlognext = NULL;
}
else
{
inputlogroot = NULL;
inputlognext = NULL;
}
#ifdef GET_PERFORMANCE_DETAILS
PerfTimer::Init();
PerfTimer control_timer;
PerfTimer simulate_timer;
PerfTimer collide_timer;
PerfTimer update_timer;
PerfTimer render_timer;
PerfTimer overlay_timer;
PerfTimer display_timer;
PerfTimer total_timer;
total_timer.Stamp();
#endif
#ifdef COLLECT_DEBUG_DRAW
// create a new draw list
GLuint debugdraw = glGenLists(1);
#endif
// wait for user exit
do
{
#ifdef GET_PERFORMANCE_DETAILS
PerfTimer::Next();
control_timer.Clear();
simulate_timer.Clear();
collide_timer.Clear();
update_timer.Clear();
render_timer.Clear();
overlay_timer.Clear();
display_timer.Clear();
total_timer.Clear();
#endif
// INPUT PHASE
#if defined(USE_SDL)
// event handler
SDL_Event event;
// process events
while( SDL_PollEvent( &event ) )
{
/* Give the console first dibs on event processing */
if (OGLCONSOLE_SDLEvent(&event))
continue;
switch (event.type)
{
case SDL_KEYDOWN:
input.OnPress( Input::TYPE_KEYBOARD, event.key.which, event.key.keysym.sym );
switch (event.key.keysym.sym)
{
case SDLK_F4:
if (event.key.keysym.mod & KMOD_ALT)
setgamestate = STATE_QUIT;
break;
case SDLK_RETURN:
if (event.key.keysym.mod & KMOD_ALT)
{
CloseWindow();
SCREEN_FULLSCREEN = !SCREEN_FULLSCREEN;
OpenWindow();
}
break;
case SDLK_ESCAPE:
if (curgamestate == STATE_PLAY)
{
if (escape)
EscapeMenuExit();
else
EscapeMenuEnter();
}
break;
case SDLK_PAUSE:
if (event.key.keysym.mod & KMOD_SHIFT)
{
paused = true;
singlestep = true;
}
else
{
paused = !paused;
}
if (paused)
Pause();
else
Resume();
break;
case SDLK_PRINT:
Screenshot();
break;
}
break;
case SDL_KEYUP:
input.OnRelease( Input::TYPE_KEYBOARD, event.key.which, event.key.keysym.sym );
break;
case SDL_MOUSEMOTION:
input.OnAxis( Input::TYPE_MOUSE_AXIS, event.motion.which, 0, float(event.motion.x * 2 - SCREEN_WIDTH) / float(SCREEN_HEIGHT) );
input.OnAxis( Input::TYPE_MOUSE_AXIS, event.motion.which, 1, float(event.motion.y * 2 - SCREEN_HEIGHT) / float(SCREEN_HEIGHT) );
input.OnAxis( Input::TYPE_MOUSE_AXIS, event.motion.which, 2, event.motion.xrel / 32.0f );
input.OnAxis( Input::TYPE_MOUSE_AXIS, event.motion.which, 3, event.motion.yrel / 32.0f );
break;
case SDL_MOUSEBUTTONDOWN:
input.OnPress( Input::TYPE_MOUSE_BUTTON, event.button.which, event.button.button );
break;
case SDL_MOUSEBUTTONUP:
input.OnRelease( Input::TYPE_MOUSE_BUTTON, event.button.which, event.button.button );
break;
case SDL_JOYAXISMOTION:
input.OnAxis( Input::TYPE_JOYSTICK_AXIS, event.jaxis.which, event.jaxis.axis, event.jaxis.value / 32767.0f );
break;
case SDL_JOYBUTTONDOWN:
input.OnPress( Input::TYPE_JOYSTICK_BUTTON, event.jaxis.which, event.jbutton.button );
break;
case SDL_JOYBUTTONUP:
input.OnRelease( Input::TYPE_JOYSTICK_BUTTON, event.jbutton.which, event.jbutton.button );
break;
case SDL_QUIT:
setgamestate = STATE_QUIT;
break;
}
}
// get loop time in ticks
unsigned int nextticks = SDL_GetTicks();
float delta = (nextticks - ticks) / 1000.0f;
ticks = nextticks;
#elif defined(USE_SFML)
sf::Event event;
while (window.GetEvent(event))
{
/* Give the console first dibs on event processing */
if (OGLCONSOLE_SFMLEvent(&event))
continue;
// Some code for stopping application on close or when escape is pressed...
switch (event.Type)
{
case sf::Event::Resized:
glViewport(0, 0, event.Size.Width, event.Size.Height);
break;
case sf::Event::KeyPressed:
input.OnPress( Input::TYPE_KEYBOARD, 0, event.Key.Code );
switch(event.Key.Code)
{
case sf::Key::F4:
if (event.Key.Alt)
setgamestate = STATE_QUIT;
break;
case sf::Key::Return:
if (event.Key.Alt)
{
CloseWindow();
SCREEN_FULLSCREEN = !SCREEN_FULLSCREEN;
OpenWindow();
}
break;
case sf::Key::Escape:
if (curgamestate == STATE_PLAY)
{
if (escape)
EscapeMenuExit();
else
EscapeMenuEnter();
}
break;
case sf::Key::Pause:
if (event.Key.Shift)
{
paused = true;
singlestep = true;
}
else
{
paused = !paused;
}
if (paused)
Pause();
else
Resume();
break;
}
break;
case sf::Event::KeyReleased:
input.OnRelease( Input::TYPE_KEYBOARD, 0, event.Key.Code );
break;
case sf::Event::MouseMoved:
input.OnAxis( Input::TYPE_MOUSE_AXIS, 0, 0, float(int(event.MouseMove.X) * 2 - SCREEN_WIDTH) / float(SCREEN_HEIGHT) );
input.OnAxis( Input::TYPE_MOUSE_AXIS, 0, 1, float(int(event.MouseMove.Y) * 2 - SCREEN_HEIGHT) / float(SCREEN_HEIGHT) );
break;
case sf::Event::MouseButtonPressed:
input.OnPress( Input::TYPE_MOUSE_BUTTON, 0, event.MouseButton.Button );
break;
case sf::Event::MouseButtonReleased:
input.OnRelease( Input::TYPE_MOUSE_BUTTON, 0, event.MouseButton.Button );
break;
case sf::Event::JoyMoved:
input.OnAxis( Input::TYPE_JOYSTICK_AXIS, event.JoyMove.JoystickId, event.JoyMove.Axis, event.JoyMove.Position / 100.0f );
break;
case sf::Event::JoyButtonPressed:
input.OnPress( Input::TYPE_JOYSTICK_BUTTON, event.JoyButton.JoystickId, event.JoyButton.Button );
break;
case sf::Event::JoyButtonReleased:
input.OnRelease( Input::TYPE_JOYSTICK_BUTTON, event.JoyButton.JoystickId, event.JoyButton.Button );
break;
case sf::Event::Closed:
setgamestate = STATE_QUIT;
break;
}
}
// get loop time in ticks
float delta = timer.GetElapsedTime();
timer.Reset();
//ticks += delta;
#elif defined(USE_GLFW)
if (glfwGetJoystickParam(0, GLFW_PRESENT))
{
// get joystick axis positions
int axiscount = glfwGetJoystickParam(0, GLFW_AXES);
float *axis = static_cast<float *>(_alloca(axiscount * sizeof(float)));
axiscount = glfwGetJoystickPos(0, axis, axiscount);
for (int i = 0; i < axiscount; ++i)
input.OnAxis(Input::TYPE_JOYSTICK_AXIS, 0, i, axis[i]);
// get joystick button states
int buttoncount = glfwGetJoystickParam(0, GLFW_BUTTONS);
unsigned char *button = static_cast<unsigned char *>(_alloca(buttoncount * sizeof(unsigned char)));
buttoncount = glfwGetJoystickButtons(0, button, buttoncount);
for (int i = 0; i < buttoncount; ++i)
input.OnAxis(Input::TYPE_JOYSTICK_BUTTON, 0, i, button[i]);
}
double nexttime = glfwGetTime();
float delta = float(nexttime - prevtime);
prevtime = nexttime;
#endif
// clamp ticks to something sensible
// (while debugging, for example)
if (delta > 0.1f)
delta = 0.1f;
// frame time and turns
if (singlestep)
{
// advance 1/60th of a second
frame_time = TIME_SCALE / 60.0f;
frame_turns = frame_time * sim_rate;
}
else if (paused || escape)
{
// freeze time
frame_time = 0.0f;
frame_turns = 0.0f;
}
else if (FIXED_STEP)
{
// advance one simulation step
frame_time = TIME_SCALE * sim_step;
frame_turns = TIME_SCALE;
}
else
{
// advance by frame time
frame_time = delta * TIME_SCALE;
frame_turns = frame_time * sim_rate;
}
// turns per motion-blur step
float step_turns = std::min(TIME_SCALE * MOTIONBLUR_TIME * sim_rate, 1.0f) / MOTIONBLUR_STEPS;
// advance to beginning of motion blur steps
sim_fraction += frame_turns;
sim_fraction -= MOTIONBLUR_STEPS * step_turns;
// for each motion-blur step
for (int blur = 0; blur < MOTIONBLUR_STEPS; ++blur)
{
// clear the screen
glClear(
GL_COLOR_BUFFER_BIT
#ifdef ENABLE_DEPTH_TEST
| GL_DEPTH_BUFFER_BIT
#endif
);
// set projection
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
glFrustum( -0.5*VIEW_SIZE*SCREEN_WIDTH/SCREEN_HEIGHT, 0.5*VIEW_SIZE*SCREEN_WIDTH/SCREEN_HEIGHT, 0.5f*VIEW_SIZE, -0.5f*VIEW_SIZE, 256.0f*1.0f, 256.0f*5.0f );
// set base modelview matrix
glMatrixMode( GL_MODELVIEW );
glLoadIdentity();
glTranslatef( 0.0f, 0.0f, -256.0f );
glScalef( -1.0f, -1.0f, -1.0f );
// advance the sim timer
sim_fraction += step_turns;
if (escape)
{
input.Update();
input.Step();
}
// while simulation turns to run...
else while ((singlestep || !paused) && sim_fraction >= 1.0f)
{
// deduct a turn
sim_fraction -= 1.0f;
// advance the turn counter
++sim_turn;
// save original fraction
float save_fraction = sim_fraction;
// switch fraction to simulation mode
sim_fraction = 0.0f;
#ifdef COLLECT_DEBUG_DRAW
// collect any debug draw
glNewList(debugdraw, GL_COMPILE);
#endif
// seed the random number generator
Random::Seed(0x92D68CA2 ^ sim_turn);
(void)Random::Int();
// update database
Database::Update();
if (curgamestate == STATE_PLAY)
{
if (playback)
{
// quit if out of turns
if (!inputlognext)
{
setgamestate = STATE_SHELL;
break;
}
// get the next turn value
int turn = -1;
inputlognext->QueryIntAttribute("turn", &turn);
// if the turn matches the simulation turn...
if ((unsigned int)turn == sim_turn)
{
// update the control values
input.Playback(inputlognext);
// go to the next entry
inputlognext = inputlognext->NextSiblingElement();
}
}
else if (record)
{
// save original input values
float prev[Input::NUM_LOGICAL];
memcpy(prev, input.output, sizeof(prev));
// update input values
input.Update();
// if any controls have changed...
bool changed = false;
for (int i = 0; i < Input::NUM_LOGICAL; ++i)
{
if (input.output[i] != prev[i])
{
changed = true; break;
}
}
if (changed)
{
// create an input turn entry
TiXmlElement item( "input" );
item.SetAttribute( "turn", sim_turn );
// add changed control values
input.Record(&item, prev);
// add the new input entry
inputlogroot->InsertEndChild(item);
}
}
else
{
// update input values
input.Update();
}
}
// do any pending turn actions
DoTurn();
// CONTROL PHASE
#ifdef GET_PERFORMANCE_DETAILS
control_timer.Start();
#endif
// control all entities
Controller::ControlAll(sim_step);
#ifdef GET_PERFORMANCE_DETAILS
control_timer.Stop();
simulate_timer.Start();
#endif
// SIMULATION PHASE
// (generate forces)
Simulatable::SimulateAll(sim_step);
#ifdef GET_PERFORMANCE_DETAILS
simulate_timer.Stop();
collide_timer.Start();
#endif
// COLLISION PHASE
// (apply forces and update positions)
Collidable::CollideAll(sim_step);
#ifdef GET_PERFORMANCE_DETAILS
collide_timer.Stop();
update_timer.Start();
#endif
// UPDATE PHASE
// (use updated positions)
Updatable::UpdateAll(sim_step);
#ifdef GET_PERFORMANCE_DETAILS
update_timer.Stop();
#endif
// step inputs for next turn
input.Step();
#ifdef COLLECT_DEBUG_DRAW
// finish the draw list
glEndList();
#endif
// restore original fraction
sim_fraction = save_fraction;
}
// clear single-step
singlestep = false;
// seed the random number generator
FloatInt floatint;
floatint.f = sim_fraction;
Random::Seed(0x92D68CA2 ^ sim_turn ^ floatint.u);
(void)Random::Int();
#ifdef PRINT_SIMULATION_TIMER
DebugPrint("delta=%f ticks=%d sim_t=%f\n", delta, ticks, sim_fraction);
#endif
#ifdef GET_PERFORMANCE_DETAILS
render_timer.Start();
#endif
// RENDERING PHASE
// push camera transform
glPushMatrix();
// get interpolated track position
Vector2 viewpos(Lerp(camerapos[0], camerapos[1], sim_fraction));
// set view position
glTranslatef( -viewpos.x, -viewpos.y, 0 );
// calculate view area
AlignedBox2 view;
view.min.x = viewpos.x - VIEW_SIZE * 0.5f * SCREEN_WIDTH / SCREEN_HEIGHT;
view.max.x = viewpos.x + VIEW_SIZE * 0.5f * SCREEN_WIDTH / SCREEN_HEIGHT;
view.min.y = viewpos.y - VIEW_SIZE * 0.5f;
view.max.y = viewpos.y + VIEW_SIZE * 0.5f;
// render all entities
// (send interpolation ratio and offset from simulation time)
Renderable::RenderAll(view);
// reset camera transform
glPopMatrix();
// if performing motion blur...
if (MOTIONBLUR_STEPS > 1)
{
// accumulate the image
glAccum(blur ? GL_ACCUM : GL_LOAD, 1.0f / float(MOTIONBLUR_STEPS));
}
#ifdef GET_PERFORMANCE_DETAILS
render_timer.Stop();
#endif
}
#ifdef GET_PERFORMANCE_DETAILS
render_timer.Start();
#endif
// if performing motion blur...
if (MOTIONBLUR_STEPS > 1)
{
// return the accumulated image
glAccum(GL_RETURN, 1);
}
// switch blend mode
glPushAttrib(GL_COLOR_BUFFER_BIT | GL_TEXTURE_BIT);
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
#ifdef GET_PERFORMANCE_DETAILS
render_timer.Stop();
overlay_timer.Start();
#endif
#ifdef COLLECT_DEBUG_DRAW
if (DEBUG_DRAW)
{
// push camera transform
glPushMatrix();
// get interpolated track position
Vector2 viewpos(Lerp(camerapos[0], camerapos[1], sim_fraction));
// set camera to track position
glTranslatef( -viewpos.x, -viewpos.y, 0 );
// debug draw
glCallList(debugdraw);
// pop camera transform
glPopMatrix();
}
#endif
// push projection transform
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, 640, 480, 0, -1, 1);
// use 640x480 screen coordinates
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// render all overlays
Overlay::RenderAll();
#ifdef GET_PERFORMANCE_DETAILS
overlay_timer.Stop();
if (!OPENGL_SWAPCONTROL)
{
display_timer.Start();
// wait for rendering to finish
glFinish();
display_timer.Stop();
}
#ifdef DRAW_PERFORMANCE_DETAILS
if (PROFILER_OUTPUTSCREEN)
{
struct BandInfo
{
const LONGLONG * time;
float r;
float g;
float b;
float a;
};
static BandInfo band_info[] =
{
{ control_timer.mHistory, 1.0f, 0.0f, 0.0f, 0.5f },
{ simulate_timer.mHistory, 1.0f, 1.0f, 0.0f, 0.5f },
{ collide_timer.mHistory, 0.0f, 1.0f, 0.0f, 0.5f },
{ update_timer.mHistory, 0.0f, 0.5f, 1.0f, 0.5f },
{ render_timer.mHistory, 1.0f, 0.0f, 1.0f, 0.5f },
{ overlay_timer.mHistory, 1.0f, 0.5f, 0.0f, 0.5f },
{ display_timer.mHistory, 0.5f, 0.5f, 0.5f, 0.5f },
};
// generate y samples
float sample_y[SDL_arraysize(band_info)+1][PerfTimer::NUM_SAMPLES];
int index = PerfTimer::mIndex;
for (int i = 0; i < PerfTimer::NUM_SAMPLES; ++i)
{
float y = 480.0f;
sample_y[0][i] = y;
for (int band = 0; band < SDL_arraysize(band_info); ++band)
{
y -= 60.0f * 480.0f * band_info[band].time[index] / PerfTimer::mFrequency;
sample_y[band+1][i] = y;
}
if (++index >= PerfTimer::NUM_SAMPLES)
index = 0;
}
glBegin(GL_QUADS);
for (int band = 0; band < SDL_arraysize(band_info); ++band)
{
glColor4fv(&band_info[band].r);
float x = 0;
float dx = 640.0f / PerfTimer::NUM_SAMPLES;
for (int i = 0; i < PerfTimer::NUM_SAMPLES; i++)
{
glVertex3f(x, sample_y[band][i], 0);
glVertex3f(x+dx, sample_y[band][i], 0);
glVertex3f(x+dx, sample_y[band+1][i], 0);
glVertex3f(x, sample_y[band+1][i], 0);
x += dx;
}
}
glEnd();
}
#endif
#ifdef PRINT_PERFORMANCE_DETAILS
if (PROFILER_OUTPUTPRINT)
{
DebugPrint("C=%d S=%d P=%d U=%d R=%d O=%d D=%d\n",
control_timer.Microseconds(),
simulate_timer.Microseconds(),
collide_timer.Microseconds(),
update_timer.Microseconds(),
render_timer.Microseconds(),
overlay_timer.Microseconds(),
display_timer.Microseconds());
}
#endif
// update frame timer
total_timer.Stamp();
#if defined(PRINT_PERFORMANCE_FRAMERATE) || defined(DRAW_PERFORMANCE_FRAMERATE)
if (FRAMERATE_OUTPUTSCREEN || FRAMERATE_OUTPUTPRINT)
{
// compute minimum, maximum, and average frame times over the past second
LONGLONG total_min = LLONG_MAX;
LONGLONG total_max = LLONG_MIN;
LONGLONG total_sum = 0;
LONGLONG total_samples = 0;
int i = PerfTimer::mIndex;
do
{
total_min = std::min(total_min, total_timer.mHistory[i]);
total_max = std::max(total_max, total_timer.mHistory[i]);
total_sum += total_timer.mHistory[i];
++total_samples;
i = (i > 0) ? i - 1 : PerfTimer::NUM_SAMPLES - 1;
}
while (total_sum <= PerfTimer::mFrequency && i != PerfTimer::mIndex && total_samples != PerfTimer::mCount);
total_sum /= total_samples;
// compute frame rates
double rate_max = (double)PerfTimer::mFrequency / total_min;
double rate_avg = (double)PerfTimer::mFrequency / total_sum;
double rate_min = (double)PerfTimer::mFrequency / total_max;
#if defined(DRAW_PERFORMANCE_FRAMERATE)
if (FRAMERATE_OUTPUTSCREEN)
{
// draw frame rate indicator
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, OGLCONSOLE_glFontHandle);
glBegin(GL_QUADS);
char fps[16];
sprintf(fps, "%.2f max", rate_max);
glColor4f(0.5f, 0.5f, 0.5f, 1.0f);
OGLCONSOLE_DrawString(fps, 640 - 16 - 8 * strlen(fps), 16, 8, -8, 0);
sprintf(fps, "%.2f avg", rate_avg);
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
OGLCONSOLE_DrawString(fps, 640 - 16 - 8 * strlen(fps), 24, 8, -8, 0);
sprintf(fps, "%.2f min", rate_min);
glColor4f(0.5f, 0.5f, 0.5f, 1.0f);
OGLCONSOLE_DrawString(fps, 640 - 16 - 8 * strlen(fps), 32, 8, -8, 0);
glEnd();
glDisable(GL_TEXTURE_2D);
}
#endif
#if defined(PRINT_PERFORMANCE_FRAMERATE)
if (FRAMERATE_OUTPUTPRINT)
{
DebugPrint("%.2f<%.2f<%.2f\n", rate_min, rate_avg, rate_max);
}
#endif
}
#endif
#endif
// reset camera transform
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
// restore blend mode
glPopAttrib();
/* Render our console */
OGLCONSOLE_Draw();
// show the back buffer
Platform::Present();
#if 0
#ifdef GET_PERFORMANCE_DETAILS
if (OPENGL_SWAPCONTROL)
#endif
// wait for rendering to finish
glFinish();
#endif
// clear device reset flag
wasreset = false;
}
while( setgamestate == curgamestate );
if (record)
{
// save input log
inputlog.SaveFile();
}
}