use crate::ScriptContext;

mod tortuise {
	#[link(wasm_import_module = "tortuise")]
	unsafe extern "C" {
		pub unsafe fn scene_id_by_name(context: u64, name: *const u8, length: usize) -> usize;
		pub safe fn preload_scene(context: u64, id: usize);
		pub safe fn is_scene_loaded(context: u64, id: usize) -> u32;
		pub safe fn switch_scene(context: u64, id: usize);
	}
}

impl ScriptContext {
	pub fn scene_id(&self, name: &str) -> usize {
		unsafe { tortuise::scene_id_by_name(self.0, name.as_ptr(), name.len()) }
	}

	pub fn preload_scene(&self, name: &str) {
		let id = self.scene_id(name);
		tortuise::preload_scene(self.0, id);
	}

	pub fn is_scene_loaded(&self, name: &str) -> bool {
		let id = self.scene_id(name);
		tortuise::is_scene_loaded(self.0, id) > 0
	}

	pub fn switch_scene(&self, name: &str) {
		let id = self.scene_id(name);
		tortuise::switch_scene(self.0, id);
	}
}