Fixes for FFI.

src/ffi/static_data/libraries/growth_rate_library.rs

@@ -0,0 +1,45 @@
+use crate::defines::LevelInt;
+use crate::ffi::{BorrowedPtr, ExternPointer, OwnedPtr};
+use crate::static_data::{GrowthRate, GrowthRateLibrary};
+use std::ffi::{c_char, CStr};
+use std::ptr::drop_in_place;
+
+#[no_mangle]
+extern "C" fn growth_rate_library_new(capacity: usize) -> OwnedPtr<GrowthRateLibrary> {
+    Box::into_raw(Box::new(GrowthRateLibrary::new(capacity)))
+}
+
+#[no_mangle]
+unsafe extern "C" fn growth_rate_library_drop(ptr: OwnedPtr<GrowthRateLibrary>) {
+    drop_in_place(ptr)
+}
+
+#[no_mangle]
+unsafe extern "C" fn growth_rate_library_calculate_level(
+    ptr: ExternPointer<GrowthRateLibrary>,
+    growth_rate: BorrowedPtr<c_char>,
+    experience: u32,
+) -> LevelInt {
+    ptr.as_ref()
+        .calculate_level(&CStr::from_ptr(growth_rate).into(), experience)
+}
+
+#[no_mangle]
+unsafe extern "C" fn growth_rate_library_calculate_experience(
+    ptr: ExternPointer<GrowthRateLibrary>,
+    growth_rate: BorrowedPtr<c_char>,
+    level: LevelInt,
+) -> u32 {
+    ptr.as_ref()
+        .calculate_experience(&CStr::from_ptr(growth_rate).into(), level)
+}
+
+#[no_mangle]
+unsafe extern "C" fn growth_rate_library_add_growth_rate(
+    ptr: ExternPointer<GrowthRateLibrary>,
+    name: BorrowedPtr<c_char>,
+    growth_rate: OwnedPtr<Box<dyn GrowthRate>>,
+) {
+    ptr.as_mut()
+        .add_growth_rate(&CStr::from_ptr(name).into(), *Box::from_raw(growth_rate));
+}