std::vector<std::shared_ptr<gua::node::TransformNode>> add_lights(gua::SceneGraph& graph,
int count) {
std::vector<std::shared_ptr<gua::node::TransformNode>> lights(count);
for (int i(0); i < count; ++i) {
scm::math::vec3 randdir(gua::math::random::get(-1.f, 1.f),
gua::math::random::get(-1.f, 1.f),
gua::math::random::get(-1.f, 1.f));
scm::math::normalize(randdir);
gua::TriMeshLoader loader;
auto sphere_geometry(
loader.create_geometry_from_file(
"sphere" + gua::string_utils::to_string(i),
"data/objects/light_sphere.obj",
"data/materials/White.gmd"
));
sphere_geometry->scale(0.04, 0.04, 0.04);
lights[i] = graph.add_node("/", std::make_shared<gua::node::TransformNode>("light" + gua::string_utils::to_string(i)));
lights[i]->add_child(sphere_geometry);
lights[i]->translate(randdir[0], randdir[1], randdir[2]);
auto light = lights[i]->add_child(std::make_shared<gua::node::PointLightNode>("light"));
light->data.set_color(gua::utils::Color3f::random());
}
return lights;
}
void depth_first(void){
int *xstack = malloc(mx * my * sizeof(int));
int *ystack = malloc(mx * my * sizeof(int));
xstack[0] = 0;
ystack[0] = 0;
int sp = 0;
int x, y;
int dir;
while(sp >= 0){
if(sp >= mx * my){
return;
}
x = xstack[sp];
y = ystack[sp];
//printf("sp = %d, (x, y) = (%d, %d)\n", sp, x, y);
if((y == 0 || maze[y - 1][x]) &&
(y == my - 1 || maze[y + 1][x]) &&
(x == 0 || maze[y][x - 1]) &&
(x == mx - 1 || maze[y][x + 1])){
sp--;
continue;
}
dir = randdir(((y > 0 && !maze[y - 1][x]) << 3) |
((y < my - 1 && !maze[y + 1][x]) << 1) |
((x > 0 && !maze[y][x - 1]) << 2) |
((x < mx - 1 && !maze[y][x + 1]) << 0));
sp++;
//printf("dir = %d\n", dir);
maze[y][x] |= dir;
switch(dir){
case 1:
maze[y ][x + 1] |= 4;
xstack[sp] = x + 1;
ystack[sp] = y;
break;
case 2:
maze[y + 1][x ] |= 8;
xstack[sp] = x;
ystack[sp] = y + 1;
break;
case 4:
maze[y ][x - 1] |= 1;
xstack[sp] = x - 1;
ystack[sp] = y;
break;
case 8:
maze[y - 1][x ] |= 2;
xstack[sp] = x;
ystack[sp] = y - 1;
break;
default:
fprintf(stderr, "INVALID DIRECTION.\n");
break;
}
}
if(odds){
random_connections();
}
}