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get_cell impl in ewext (maybe)

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IQuant 2024-09-17 14:31:08 +03:00
parent eaa8c2832c
commit da2cb9b625
4 changed files with 35 additions and 1 deletions
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2
ewext/src/lib.rs
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@ -4,6 +4,8 @@ use lua_bindings::{lua_State, Lua51};
mod lua_bindings;
mod noita;
static LUA: LazyLock<Lua51> = LazyLock::new(|| unsafe {
let lib = libloading::Library::new("./lua51.dll").expect("library to exist");
Lua51::from_library(lib).expect("library to be lua")

16
ewext/src/noita.rs Normal file
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@ -0,0 +1,16 @@
use std::ffi::c_void;
pub(crate) struct ChunkMap {
this: *mut c_void,
}
impl ChunkMap {
unsafe fn get_cell(&self, x: u32, y: u32) {
let x = x as isize;
let y = y as isize;
let index = ((((y) >> 9) - 256 & 511) * 512 + (((x) >> 9) - 256 & 511)) * 4;
let chunk_arr = self.this.offset(8).cast::<*const c_void>().read();
let chunk = chunk_arr.offset(index).cast::<*const c_void>().read();
let pixel = chunk.offset(((y & 511) << 9 | x & 511) * 4);
}
}