From 33576fe7a5f241dbd884315c3552ad8186562e74 Mon Sep 17 00:00:00 2001
From: troido <troido@protonmail.com>
Date: Mon, 3 Feb 2020 23:03:11 +0100
Subject: can initialise Assemblages from json lists and dicts

---
 src/assemblages.rs | 34 ++++++++++++++++++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

(limited to 'src/assemblages.rs')

diff --git a/src/assemblages.rs b/src/assemblages.rs
index b43548c..729a65d 100644
--- a/src/assemblages.rs
+++ b/src/assemblages.rs
@@ -1,6 +1,7 @@
 
-
+use std::collections::HashMap;
 use rand::Rng;
+use serde_json::Value;
 use specs::{
 	Builder,
 	EntityBuilder
@@ -10,7 +11,7 @@ use super::components::{Visible, Blocking, Played};
 
 macro_rules! assemblage {
 	($name:ident { $($arg:ident : $argt:ident ),* } ; $( $comp:expr ),* ) => {
-		#[derive(Debug, Clone)]
+		#[derive(Debug, Clone, Default)]
 		pub struct $name {$(
 			pub $arg : $argt
 		)* }
@@ -24,15 +25,44 @@ macro_rules! assemblage {
 				)*
 				builder
 			}
+			
+			fn init_from_json(&mut self, mut _args: Vec<Value>, _kwargs: HashMap<&str, Value>) {
+				$(
+					if _args.len() > 0 {
+						let val = _args.remove(0);
+						if let Some(actual_val) = unpack_json!($argt, val) {
+							self.$arg = actual_val;
+						}
+					}
+				)*
+				$(
+					if let Some(val) = _kwargs.get(stringify!($arg)) {
+						if let Some(actual_val) = unpack_json!($argt, val) {
+							self.$arg = actual_val;
+						}
+					}
+				)*
+			}
 		}
 		unsafe impl Send for $name {}
 		unsafe impl Sync for $name {}
 	}
 }
 
+macro_rules! unpack_json {
+	(String, $val: ident) => {
+		if let Some(txt) = $val.as_str(){
+			Some(txt.to_string())
+		} else {
+			None
+		}
+	}
+}
+
 
 pub trait Assemblage: Send + Sync {
 	fn build<'a>(&self, builder: EntityBuilder<'a>) -> EntityBuilder<'a>;
+	fn init_from_json(&mut self, args: Vec<Value>, kwargs: HashMap<&str, Value>);
 }
 
 
-- 
cgit