void main_loop() {
struct timespec ptime;
struct timespec ctime;
struct timespec diff;
clock_gettime(CLOCK_MONOTONIC_COARSE, &ctime);
while (running) {
clock_gettime(CLOCK_MONOTONIC_COARSE, &ptime);
reshape_window();
poll_geometry();
process_events();
display_func();
clock_gettime(CLOCK_MONOTONIC_COARSE, &ctime);
diff.tv_sec = ctime.tv_sec - ptime.tv_sec;
diff.tv_nsec = ctime.tv_nsec - ptime.tv_nsec;
long sleeptime = 16666666l - ( diff.tv_sec * 1000000000l + diff.tv_nsec );
diff.tv_sec = 0;
diff.tv_nsec = sleeptime;
while (diff.tv_nsec > 0) {
struct timespec rem;
int i = nanosleep(&diff, &rem);
if (i < 0) {
diff.tv_sec = rem.tv_sec;
diff.tv_nsec = rem.tv_nsec;
} else {
break;
}
}
}
}
void reshape(int width, int height)
{
reshape_window(width, height);
//glutReshapeWindow(width, height);
if (draw_tw)
TwWindowSize(width, height);
}
bool Window::SDL_init( unsigned int w , unsigned int h )
{
log_printf(INFO,"Starting SDL with %dx%d resolution\n",w,h);
if( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER) ) {
log_printf(CRITICAL,"SDL error occurred: %s\n",SDL_GetError());
return false;
}
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
flags|= SDL_OPENGL|SDL_HWSURFACE|SDL_DOUBLEBUF;
flags|= SDL_RESIZABLE;
SDL_Surface * image = SDL_LoadBMP(DATA("icon.bmp").c_str());
if( image ) {
Uint32 colorkey = SDL_MapRGB(image->format, 255, 0, 255);
SDL_SetColorKey(image, SDL_SRCCOLORKEY, colorkey);
SDL_WM_SetIcon(image,NULL);
}
SDL_WM_SetCaption("Planetz","Planetz");
reshape_window( w , h );
return true;
}
void step()
{
//"1-4: demos, p - pause, y - kick body, ' - draw contacts/constraints"
clock_t cl = clock();
if (cl > prevCl + (double)CLOCKS_PER_SEC * speed / 1000 && !pause)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
draw_bodies(world.bodies);
//draw_ropes(world.ropes);
if (draw_cos)
{
draw_collisions(world.collisions);
draw_constraints(world.constraints);
}
if (drag_force != 0)
{
double wx, wy;
screen_coords2world(motion_x, motion_y, wx, wy);
Vector2 head(wx, wy), tail(drag_force->Body->form->point + drag_force->LocalPoint);
Vector2 vect = head - tail;
drag_force->Magnitude[0] = drag_force_spring_coef * vect.v1 * drag_force->Body->mass
- drag_force_damper_coef * drag_force->Body->velocity.v1;
drag_force->Magnitude[1] = drag_force_spring_coef * vect.v2 * drag_force->Body->mass
- drag_force_damper_coef * drag_force->Body->velocity.v2;
glColor3f(0.0f, 1.0f, 0.0f);
draw_segment(Segment(head, tail));
}
if (kickBody != 0)
{
double wx, wy;
screen_coords2world(motion_x, motion_y, wx, wy);
glColor3f(0.0f, 0.0f, 1.0f);
draw_segment(Segment(Vector2(wx, wy), kickBody->form->point));
}
if (player_body)
{
camera_xpos = player_body->form->point.v1;
camera_ypos = player_body->form->point.v2;
int w = glutGet(GLUT_WINDOW_WIDTH);
int h = glutGet(GLUT_WINDOW_HEIGHT);
reshape_window(w, h);
}
if (draw_tw)
TwDraw();
glutSwapBuffers();
}
if (cl > prevCl + (double)CLOCKS_PER_SEC * speed / 1000 && !pause)
{
world.update(world.vars.timeStep);
prevCl = cl;
}
}
void check_resize(Game *game, XEvent *e)
{
if(e->type != ConfigureNotify)
return;
XConfigureEvent xce = e->xconfigure;
if(xce.width != xres || xce.height != yres) {
reshape_window(game, xce.width, xce.height);
}
}
void check_resize(XEvent *e)
{
if(e->type != ConfigureNotify)
return;
XConfigureEvent xce = e->xconfigure;
if(xce.width != WINDOW_WIDTH || xce.height != WINDOW_HEIGHT)
{
reshape_window(xce.width, xce.height);
}
}
void check_resize(XEvent *e)
{
//The ConfigureNotify is sent by the
//server if the window is resized.
if (e->type != ConfigureNotify)
return;
XConfigureEvent xce = e->xconfigure;
if (xce.width != xres || xce.height != yres) {
//Window size did change.
reshape_window(xce.width, xce.height);
}
}
