Reorganize Redpiler in preparation for LLVM and Cranelift backends.

Cargo.toml

@@ -45,3 +45,7 @@ regex = "1.4.3"
 lazy_static = "1.4.0"
 backtrace = "0.3.56"
 rusqlite = { version="0.24.2", features=["bundled"] }
+# TODO: Put the cranelift stuff behind a feature flag
+cranelift = "0.73.0"
+cranelift-jit = "0.73.0"
+cranelift-module = "0.73.0"

docs/Redpiler.md

@@ -39,4 +39,20 @@ TODO
 
 ## Native Code generation
 
-TODO
+Each node will generate 2 functions: update and tick. Each node will have a global memory location holding their state.
+Example of generated code in C form:
+```c
+struct State {
+    // Information such as powered or output strength
+}
+
+struct State n0;
+
+void n0_update() {
+    // ...
+}
+
+void n0_tick() {
+    // ...
+}
+```

src/plot/mod.rs

@@ -586,7 +586,7 @@ impl Plot {
 
     fn update(&mut self) {
         if self.redpiler.is_active {
-            let changes: Vec<(BlockPos, Block)> = self.redpiler.change_queue.drain(..).collect();
+            let changes: Vec<(BlockPos, Block)> = self.redpiler.block_changes().drain(..).collect();
             for (pos, block) in changes {
                 self.set_block(pos, block);
             }
@@ -822,10 +822,10 @@ impl Plot {
         always_running: bool,
         initial_player: Option<Player>,
     ) {
-        let mut plot = Plot::load(x, z, rx, tx, priv_rx, always_running);
         thread::Builder::new()
             .name(format!("p{},{}", x, z))
             .spawn(move || {
+                let mut plot = Plot::load(x, z, rx, tx, priv_rx, always_running);
                 plot.run(initial_player);
             })
             .unwrap();