lune/crates/lune-roblox/src/instance/data_model.rs
2024-05-12 13:30:32 +02:00

77 lines
2.5 KiB
Rust

use mlua::prelude::*;
use crate::shared::{
classes::{
add_class_restricted_getter, add_class_restricted_method,
get_or_create_property_ref_instance,
},
instance::class_is_a_service,
};
use super::Instance;
pub const CLASS_NAME: &str = "DataModel";
pub fn add_fields<'lua, F: LuaUserDataFields<'lua, Instance>>(f: &mut F) {
add_class_restricted_getter(f, CLASS_NAME, "Workspace", data_model_get_workspace);
}
pub fn add_methods<'lua, M: LuaUserDataMethods<'lua, Instance>>(m: &mut M) {
add_class_restricted_method(m, CLASS_NAME, "GetService", data_model_get_service);
add_class_restricted_method(m, CLASS_NAME, "FindService", data_model_find_service);
}
/**
Get the workspace parented under this datamodel, or create it if it doesn't exist.
### See Also
* [`Terrain`](https://create.roblox.com/docs/reference/engine/classes/Workspace#Terrain)
on the Roblox Developer Hub
*/
fn data_model_get_workspace(_: &Lua, this: &Instance) -> LuaResult<Instance> {
get_or_create_property_ref_instance(this, "Workspace", "Workspace")
}
/**
Gets or creates a service for this `DataModel`.
### See Also
* [`GetService`](https://create.roblox.com/docs/reference/engine/classes/ServiceProvider#GetService)
on the Roblox Developer Hub
*/
fn data_model_get_service(_: &Lua, this: &Instance, service_name: String) -> LuaResult<Instance> {
if matches!(class_is_a_service(&service_name), None | Some(false)) {
Err(LuaError::RuntimeError(format!(
"'{service_name}' is not a valid service name",
)))
} else if let Some(service) = this.find_child(|child| child.class == service_name) {
Ok(service)
} else {
let service = Instance::new_orphaned(service_name);
service.set_parent(Some(this.clone()));
Ok(service)
}
}
/**
Gets a service for this `DataModel`, if it exists.
### See Also
* [`FindService`](https://create.roblox.com/docs/reference/engine/classes/ServiceProvider#FindService)
on the Roblox Developer Hub
*/
fn data_model_find_service(
_: &Lua,
this: &Instance,
service_name: String,
) -> LuaResult<Option<Instance>> {
if matches!(class_is_a_service(&service_name), None | Some(false)) {
Err(LuaError::RuntimeError(format!(
"'{service_name}' is not a valid service name",
)))
} else if let Some(service) = this.find_child(|child| child.class == service_name) {
Ok(Some(service))
} else {
Ok(None)
}
}