void Terrain::SetPositionLight(float x, float y, float z)
{
SetPositionLight(Vector3f(x, y, z));
}
static int populate_lights(Vector *lights) {
size_t i;
size_t n;
int s;
hash *light_h;
char *name, *type, *aux;
Vector *v;
set *S;
float r, g, b, w;
float rgb[3], pos4[4];
float cutoff = 30.0;
float exp = 10.0;
Light *l;
if (!lights) return -1;
n = sizeVector(lights);
for(i = 0; i < n; i++) {
S = CreateSet();
light_h = (hash *) atVector(lights, i);
name = (char *) FindHashElement(light_h, "name");
type = (char *) FindHashElement(light_h, "type");
if (!check_light_type(type)) {
fprintf(stderr, "[E] populate_lights: bad light type %s (possible values \"positional\", \"directional\", \"spotlight\")\n", type);
exit(1);
}
if (!name) return i;
if (!type) return i;
InsertSetElement(S, "name");
InsertSetElement(S, "type");
l = SceneRegisterLight(name);
v = (Vector *) FindHashElement(light_h, "pos");
if (v) {
InsertSetElement(S, "pos");
read_xyz(v, &pos4[0], &pos4[1], &pos4[2]);
pos4[3] = 1.0;
if (!strcmp(type, "directional")) pos4[3] = 0.0;
SetPositionLight(l, &pos4[0]);
}
v = (Vector *) FindHashElement(light_h, "amb");
if (v) {
InsertSetElement(S, "amb");
read_xyz(v, &rgb[0], &rgb[1], &rgb[2]);
SetAmbientLight(l, &rgb[0]);
}
v = (Vector *) FindHashElement(light_h, "dif");
if (v) {
InsertSetElement(S, "dif");
read_xyz(v, &rgb[0], &rgb[1], &rgb[2]);
SetDiffuseLight(l, &rgb[0]);
}
v = (Vector *) FindHashElement(light_h, "spec");
if (v) {
InsertSetElement(S, "spec");
read_xyz(v, &rgb[0], &rgb[1], &rgb[2]);
SetSpecularLight(l, &rgb[0]);
}
if (!strcmp(type, "spotlight")) {
aux = (char *) FindHashElement(light_h, "exp");
if (aux) {
InsertSetElement(S, "exp");
sscanf(aux, "%f", &exp);
if (exp < 0) {
fprintf(stderr, "[E] populate_lights: negative exponent\n");
exit(1);
}
free(aux);
}
aux = (char *) FindHashElement(light_h, "cutoff");
if (aux) {
InsertSetElement(S, "cutoff");
sscanf(aux, "%f", &cutoff);
if (exp < 0) {
fprintf(stderr, "[E] populate_lights: negative cutoff\n");
exit(1);
}
free(aux);
}
rgb[0] = 0.577; rgb[1] = 0.577; rgb[2] = 0.577;
v = (Vector *) FindHashElement(light_h, "spdir");
if (v) {
InsertSetElement(S, "spdir");
read_xyz(v, &rgb[0], &rgb[1], &rgb[2]);
}
SetSpotLight(l, &rgb[0], cutoff, exp);
}
aux = (char *) FindHashElement(light_h, "switched");
if (aux) {
InsertSetElement(S, "switched");
sscanf(aux, "%d", &s);
if (!s) SwitchLight(l, 0);
free(aux);
}
free(type);
free(name);
check_and_destroy("populate_lights", light_h, S);
//DestroyHash(&light_h);
}
DestroyVector(&lights);
return -1;
}
