int main(int argc, char** argv)
{
init_gfx();
init_2d();
world = dWorldCreate();
dBodyID ball = dBodyCreate(world);
dBodySetPosition(ball, 0, 0, 0);
for (;;) {
Uint8* chars = SDL_GetKeyState(NULL);
if (chars[SDLK_LEFT]) {
dBodyAddForce(ball, -force, 0, 0);
}
if (chars[SDLK_RIGHT]) {
dBodyAddForce(ball, +force, 0, 0);
}
if (chars[SDLK_UP]) {
dBodyAddForce(ball, 0, +force, 0);
}
if (chars[SDLK_DOWN]) {
dBodyAddForce(ball, 0, -force, 0);
}
const dReal* pos = dBodyGetPosition(ball);
glTranslatef(pos[0], pos[1], pos[2]);
draw_circle();
dWorldQuickStep(world, 0.01);
step();
}
}
int main(int argc, char** argv)
{
init_gfx();
init_2d();
// create world and set gravity
world = dWorldCreate();
dWorldSetGravity(world, 0, -5, 0);
// create a body for our ball
dBodyID body = dBodyCreate(world);
dBodySetPosition(body, 0, 0, 0);
for (;;) { // infinite loop
// get the position and move there in OpenGL
const dReal* pos = dBodyGetPosition(body);
glTranslatef(pos[0], pos[1], pos[2]);
draw_circle();
// integrate all bodies
dWorldQuickStep(world, 0.01);
// redraw screen
step();
}
}
int main (void)
{
int array[N][M];
int i, j, k;
init_2d(array, N, M);
for (i = 0; i < N; i++)
for (j = 0; j < M; j++) {
scanf("%d", &k);
array[i][j] += k;
}
for (i = 0; i < N; i++) {
for (j = 0; j < M; j++)
printf("%d ", array[i][j]);
printf("\n");
}
return 0;
}
int main(int argc, char** argv)
{
init_gfx();
init_2d();
world = dWorldCreate();
dBodyID ball = dBodyCreate(world);
dBodySetPosition(ball, 0, 0, 0);
for (;;) {
Uint8* chars = SDL_GetKeyState(NULL);
const dReal* pos = dBodyGetPosition(ball);
const dReal* q = dBodyGetQuaternion(ball);
double angle = get_q_angle(q);
const dReal* axis = get_q_axis(q);
if (chars[SDLK_LEFT]) {
dBodyAddForceAtPos(ball, -force, 0, 0,
pos[0], pos[1]+1, pos[2]);
}
if (chars[SDLK_RIGHT]) {
dBodyAddForceAtPos(ball, force, 0, 0,
pos[0], pos[1]+1, pos[2]);
}
if (chars[SDLK_UP]) {
dBodyAddForce(ball, 0, +force, 0);
}
if (chars[SDLK_DOWN]) {
dBodyAddForce(ball, 0, -force, 0);
}
glTranslatef(pos[0], pos[1], pos[2]);
glRotatef(angle * 180 / M_PI, axis[0], axis[1], axis[2]);
draw_circle();
dWorldQuickStep(world, 0.01);
step();
}
}
