PkmnLib_rs/src/ffi/static_data/libraries/nature_library.rs

80 lines
2.7 KiB
Rust

use crate::ffi::ffi_handle::{FFIHandle, FromFFIHandle};
use crate::ffi::{FFIResult, NonOwnedPtrString, OwnedPtrString};
use crate::static_data::{Nature, NatureLibrary, NatureLibraryImpl};
use crate::{PkmnError, Random};
use anyhow::anyhow;
use std::ffi::{CStr, CString};
use std::sync::Arc;
/// Creates a new nature library with a given capacity.
#[no_mangle]
extern "C" fn nature_library_new(capacity: usize) -> FFIHandle<Arc<dyn NatureLibrary>> {
let b: Arc<dyn NatureLibrary> = Arc::new(NatureLibraryImpl::new(capacity));
FFIHandle::get_handle(b.into())
}
/// Adds a new nature with name to the library.
#[no_mangle]
unsafe extern "C" fn nature_library_load_nature(
ptr: FFIHandle<Arc<dyn NatureLibrary>>,
name: NonOwnedPtrString,
nature: FFIHandle<Arc<dyn Nature>>,
) -> FFIResult<()> {
let nature = nature.from_ffi_handle_opt().ok_or(PkmnError::NullReference);
match nature {
Ok(nature) => {
ptr.from_ffi_handle()
.load_nature(CStr::from_ptr(name).into(), nature.clone());
FFIResult::ok(())
}
Err(e) => FFIResult::err(e.into()),
}
}
/// Gets a nature by name.
#[no_mangle]
unsafe extern "C" fn nature_library_get_nature(
ptr: FFIHandle<Arc<dyn NatureLibrary>>,
name: NonOwnedPtrString,
) -> FFIHandle<Arc<dyn Nature>> {
if let Some(nature) = ptr.from_ffi_handle().get_nature(&CStr::from_ptr(name).into()) {
FFIHandle::get_handle(nature.into())
} else {
FFIHandle::none()
}
}
/// Gets a random nature.
#[no_mangle]
unsafe extern "C" fn nature_library_get_random_nature(
ptr: FFIHandle<Arc<dyn NatureLibrary>>,
seed: u64,
) -> FFIResult<FFIHandle<Arc<dyn Nature>>> {
let mut rand = Random::new(seed as u128);
match ptr.from_ffi_handle().get_random_nature(&mut rand) {
Ok(nature) => FFIResult::ok(FFIHandle::get_handle(nature.into())),
Err(e) => FFIResult::err(e),
}
}
/// Finds a nature name by nature.
#[no_mangle]
unsafe extern "C" fn nature_library_get_nature_name(
ptr: FFIHandle<Arc<dyn NatureLibrary>>,
nature: FFIHandle<Arc<dyn Nature>>,
) -> FFIResult<OwnedPtrString> {
match nature.from_ffi_handle_opt() {
Some(nature) => {
let name = ptr.from_ffi_handle().get_nature_name(&nature);
match name {
Ok(name) => match CString::new(name.str()) {
Ok(cstr) => FFIResult::ok(OwnedPtrString(cstr.into_raw())),
Err(_) => FFIResult::err(anyhow!("Failed to convert nature name to C string")),
},
Err(e) => FFIResult::err(e),
}
}
None => FFIResult::err(PkmnError::NullReference.into()),
}
}