From 4394905d17088eea45475d2d86f0e186e8f06c6f Mon Sep 17 00:00:00 2001
From: hut <hut@hut.pm>
Date: Wed, 20 Mar 2024 04:34:09 +0100
Subject: [PATCH] WIP parser for world definitions file

---
 Cargo.lock   |  1 +
 Cargo.toml   |  1 +
 src/world.rs | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 64 insertions(+), 1 deletion(-)

diff --git a/Cargo.lock b/Cargo.lock
index 09ae1af..70a53b7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2661,6 +2661,7 @@ name = "outfly"
 version = "0.1.3"
 dependencies = [
  "bevy",
+ "regex",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index ad91adc..c6d0a02 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+regex = "1"
 bevy = { version = "0.13.0", features = ["jpeg", "minimp3", "dynamic_linking"] }
 #bevy = { version = "0.13.0", features = ["jpeg", "minimp3"] }
 
diff --git a/src/world.rs b/src/world.rs
index a2dc5e7..d23bb65 100644
--- a/src/world.rs
+++ b/src/world.rs
@@ -1,4 +1,6 @@
+extern crate regex;
 use crate::{actor, camera, nature};
+use regex::Regex;
 use bevy::prelude::*;
 //use bevy::core_pipeline::Skybox;
 //use bevy::asset::LoadState;
@@ -28,7 +30,7 @@ const ASSET_JUPITER: &str = "models/jupiter.glb#Scene0";
 pub struct WorldPlugin;
 impl Plugin for WorldPlugin {
     fn build(&self, app: &mut App) {
-        app.add_systems(Startup, setup);
+        app.add_systems(Startup, (setup, load_defs));
         //app.add_systems(Update, asset_loaded.after(load_cubemap_asset));
         //app.add_systems(Update, swap_world_on_ar_toggle);
         app.insert_resource(ClearColor(Color::rgb(0.0, 0.0, 0.0)));
@@ -312,6 +314,65 @@ pub fn setup(
     });
 }
 
+pub fn load_defs(
+) {
+    let re1 = Regex::new(r"^\s*([a-z]+)\s+(.*)$").unwrap();
+    let re2 = Regex::new("\"([^\"]*)\"|([0-9]+(?:\\.[0-9]+)?)").unwrap();
+    let defs_string = include_str!("defs.txt");
+    let mut lines = defs_string.lines();
+    let mut line_nr = -1;
+    while let Some(line) = lines.next() {
+        line_nr += 1;
+        let caps = re1.captures(line);
+        if caps.is_none() {
+            if line.trim() != "" {
+                info!("Syntax Error in definitions line {}: `{}`", line_nr, line);
+            }
+            continue;
+        }
+        let command = caps.unwrap().get(1).unwrap().as_str();
+        info!(command);
+
+        let mut parts: Vec<&str> = Vec::new();
+        parts.push(command);
+        for caps in re2.captures_iter(line) {
+            if let Some(part) = caps.get(1) {
+                parts.push(&part.as_str());
+            }
+            if let Some(part) = caps.get(2) {
+                parts.push(&part.as_str());
+            }
+        }
+
+        match parts.as_slice() {
+            ["chat", chat_name] => {
+                info!("Registering chat: {}", chat_name);
+            }
+            ["msg", sleep, text] => {
+                info!("Registering message (sleep={}): {}", sleep, text);
+            }
+            ["choice", sleep, text] => {
+                info!("Registering choice (sleep={}): {}", sleep, text);
+            }
+            ["goto", label] => {
+                info!("Registering goto: {}", label);
+            }
+            ["label", label] => {
+                info!("Registering label: {}", label);
+            }
+            ["name", name] => {
+                info!("Registering name: {}", name);
+            }
+            ["lvl", level] => {
+                info!("Registering level: {}", level);
+            }
+            _ => {
+                error!("No match for [{}]", parts.join(","));
+            }
+        }
+    }
+}
+
 //pub fn swap_world_on_ar_toggle(
 //    asset_server: Res<AssetServer>,
 //    mut images: ResMut<Assets<Image>>,