Exemplo n.º 1
0
static int create_translate_node(lua_State *L) {
    maybe_insert_default_mv(L);
    int nargs = am_check_nargs(L, 2);
    am_translate_node *node = am_new_userdata(L, am_translate_node);
    node->tags.push_back(L, AM_TAG_TRANSLATE);
    node->name = am_lookup_param_name(L, 1);
    switch (am_get_type(L, 2)) {
        case MT_am_vec2: {
            glm::vec2 v2 = am_get_userdata(L, am_vec2, 2)->v;
            node->v = glm::vec3(v2.x, v2.y, 0.0f);
            break;
        }
        case MT_am_vec3: {
            node->v = am_get_userdata(L, am_vec3, 2)->v;
            break;
        }
        case LUA_TNUMBER: {
            if (nargs < 3) {
                return luaL_error(L, "too few arguments");
            } else if (nargs == 3) {
                node->v = glm::vec3((float)luaL_checknumber(L, 2), (float)luaL_checknumber(L, 3), 0.0f);
            } else if (nargs == 4) {
                node->v = glm::vec3((float)luaL_checknumber(L, 2), (float)luaL_checknumber(L, 3), (float)luaL_checknumber(L, 4));
            } else {
                return luaL_error(L, "too many arguments");
            }
            break;
        }
        default:
            return luaL_error(L, "expecting a vec2 or vec3 argument");
    }
    return 1;
}
Exemplo n.º 2
0
static int create_scale_node(lua_State *L) {
    maybe_insert_default_mv(L);
    int nargs = am_check_nargs(L, 2);
    am_scale_node *node = am_new_userdata(L, am_scale_node);
    node->tags.push_back(L, AM_TAG_SCALE);
    node->name = am_lookup_param_name(L, 1);
    switch (am_get_type(L, 2)) {
        case MT_am_vec2: {
            glm::dvec2 v2 = am_get_userdata(L, am_vec2, 2)->v;
            node->v = glm::dvec3(v2.x, v2.y, 1.0);
            break;
        }
        case MT_am_vec3: {
            node->v = am_get_userdata(L, am_vec3, 2)->v;
            break;
        }
        case LUA_TNUMBER: {
            if (nargs == 2) {
                double s = (double)luaL_checknumber(L, 2);
                node->v = glm::dvec3(s, s, 1.0);
            } else if (nargs == 3) {
                node->v = glm::dvec3((double)luaL_checknumber(L, 2), (double)luaL_checknumber(L, 3), 1.0);
            } else if (nargs == 4) {
                node->v = glm::dvec3((double)luaL_checknumber(L, 2), (double)luaL_checknumber(L, 3), (double)luaL_checknumber(L, 4));
            } else {
                return luaL_error(L, "too many arguments");
            }
            break;
        }
        default:
            return luaL_error(L, "expecting a vec2 or vec3 argument");
    }
    return 1;
}
Exemplo n.º 3
0
static int create_lookat_node(lua_State *L) {
    maybe_insert_default_mv(L);
    am_check_nargs(L, 4);
    am_lookat_node *node = am_new_userdata(L, am_lookat_node);
    node->tags.push_back(L, AM_TAG_LOOKAT);
    node->name = am_lookup_param_name(L, 1);
    node->eye = am_get_userdata(L, am_vec3, 2)->v;
    node->center = am_get_userdata(L, am_vec3, 3)->v;
    node->up = am_get_userdata(L, am_vec3, 4)->v;
    return 1;
}
Exemplo n.º 4
0
static int create_billboard_node(lua_State *L) {
    maybe_insert_default_mv(L);
    int nargs = am_check_nargs(L, 1);
    am_billboard_node *node = am_new_userdata(L, am_billboard_node);
    node->tags.push_back(L, AM_TAG_BILLBOARD);
    node->name = am_lookup_param_name(L, 1);
    node->preserve_uniform_scaling = false;
    if (nargs > 1) {
        node->preserve_uniform_scaling = lua_toboolean(L, 2);
    }
    return 1;
}
Exemplo n.º 5
0
static int create_rotate_node(lua_State *L) {
    maybe_insert_default_mv(L);
    int nargs = am_check_nargs(L, 2);
    am_rotate_node *node = am_new_userdata(L, am_rotate_node);
    node->tags.push_back(L, AM_TAG_ROTATE);
    node->name = am_lookup_param_name(L, 1);
    switch (am_get_type(L, 2)) {
        case MT_am_quat:
            node->rotation = am_get_userdata(L, am_quat, 2)->q;
            node->angle = glm::angle(node->rotation);
            node->axis = glm::axis(node->rotation);
            break;
        default:
            node->angle = luaL_checknumber(L, 2);
            if (nargs > 2) {
                node->axis = am_get_userdata(L, am_vec3, 3)->v;
            } else {
                node->axis = glm::vec3(0.0f, 0.0f, 1.0f);
            }
            node->rotation = glm::angleAxis(node->angle, node->axis);
            break;
    }
    return 1;
}