static void display_func(void) {
pre_display();
draw_forces();
draw_constraints();
draw_particles();
post_display();
}
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;
}
}
static void display_func(void) {
pre_display();
if (dvel) draw_velocity();
else draw_density();
if (dpar) {
draw_forces();
draw_constraints();
draw_particles();
}
for(int i = 0; i < bodies.size(); i++){
bodies[i]->draw();
}
post_display();
}
